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"/images/banner/s5.jpg"; var randomBgIndex = Math.round( Math.random() * 4 ); //输出随机的背景图 document.write('<style>.banner{background:url(' + bodyBgs[randomBgIndex] + ') no-repeat 50% bottom}</style>'); //]]> </script> <section> <div class="banner" style="height:160px;"> </div> </section> <!-- 面包屑导航开始 --> <div class="container "> <nav class="sub_menu"> <ol class="breadcrumb"><span class="glyphicon glyphicon-list"></span> <li><a href="/">网站首页</a></li> <li><a title="技术文章" href="/bethel/NC">技术文章</a></li> <li><a title="数控文章" href="/bethel/news">数控文章</a></li> </ol> </nav> </div> <!--/sub_menu--><!-- 面包屑导航结束 --> <!-- 页面标题开始 --> <div class="title"> <h3><a>进口数控立式加工中心主轴平衡的改善<small></small></a></h3> </div> <!-- 页面标题结束 --> <hr class="featurette-divider"> <!-- 中部开始 --> <div class="container"> <!-- 正文 --> <div class="lead" id="print"> <p> <a name="bookmark2" style="line-height: 9.5pt; text-align: justify; text-indent: 21pt; background-color: transparent;"><span lang="EN-US" style="letter-spacing: 1pt;">1.<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><span class="731pt">故障现象分析</span></a></p> <div class="WordSection1"> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 21.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">公司两台德国进口的数控立 式加工中心</span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MAG</span></span><span class="20pt"><span lang="EN-US"> </span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">FTV</span></span><span class="20pt"><span lang="EN-US">850/1050, </span>主要用于进行齿轮的钻孔和镗孔 工序，在加工的过程中经常出现 机床主轴突然下坠的故障，故障 发生后机床主轴刀具顶在加工工 件表面，丝锥断在工件内部，导 致工件报废。假如机床操作人员 在对刀时主轴突然下坠，就有可 能发生人身伤亡，因此，我们认 为此设备存在很大的安全隐患。</span></p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 21.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">经过仔细地检查和认真地分 析后发现，机床在突发故障的瞬 间，2轴电动机的刹车滞后，主轴 电动机等因自重而下坠，从而故 障发生。为了机床使用安全和产 品加工可靠，我们提出给机床2轴 安装平衡液压缸，用于平衡2轴丝 杠上面的主轴电动机等重量，使 机床故障时主轴不会出现突然下 坠的情况，从而达到安全生产的 目的。</span></p> <p class="730" style="margin-top:0cm;margin-right:0cm;margin-bottom:2.5pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 21.0pt;line-height:9.5pt;mso-line-height-rule:exactly;mso-pagination:lines-together; page-break-after:avoid;mso-list:l0 level1 lfo1;tab-stops:34.95pt;background: transparent"><a name="bookmark3"><!--[if !supportLists]--><span lang="EN-US" style="letter-spacing: 1pt;">2.<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="731pt">改善措施</span></a></p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 21.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">通过仔细地查阅设备采购 档案、机床说明书等资料，得知 该机床平衡装置在出厂时是可以 选装的，安装位置已预留（见图</span><!--[if !supportLists]--><span style="letter-spacing: 0.5pt;">1)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="20pt">，向厂家询问报价，购买的费 用近13万元，而且发货要等三个 月。为了减少停机时间、降低维 修成本，我们决定自行研制内置 式平衡系统。</span></p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 20.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">我们对平衡液压缸在机床上 的位置进行测量，确定了液压缸 的安装位置，同时确定液压缸行 程、缸径，计算平衡压力及氮气 瓶容量，经过多次的修改，机床 内置式两根平衡液压缸的图样终 于确定了下来（见图2、图3)。 我们自行设计制作了液压缸的固</span><span style="font-size: 9.5pt; font-family: MingLiU;"><span class="20pt">定支架，也是经过多次修改。</span></span></p> <!--[endif]--> <p class="730" style="margin-top:10.5pt;margin-right:0cm;margin-bottom:2.7pt; margin-left:0cm;text-indent:21.0pt;line-height:9.5pt;mso-line-height-rule:exactly; mso-pagination:lines-together;page-break-after:avoid;mso-list:l0 level1 lfo1; background:transparent"><a name="bookmark4"><!--[if !supportLists]--><span lang="EN-US" style="letter-spacing: 1pt;">3.<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="731pt">安装调试</span></a></p> <p class="20" align="left" style="text-indent: 21pt; line-height: 16.3pt; background: transparent;"><span class="20pt">调试过程中发现，当平衡 液压缸安装在机床上，上电开 机，此时主轴就开始往上移动， 原因是买来的氮气瓶压力达到 </span><span class="20pt"><span lang="EN-US">8.0</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">,</span>设计压力只有</span><span class="20pt"><span lang="EN-US">5.6</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">。</span></span></p> <p class="20" align="left" style="text-indent: 0cm; line-height: 16.55pt; background: transparent;"><span class="20pt">关机将氮气瓶压力调整到设计压 力，开机正常，但是在透轴往下移 动时有异响，而且在停下来时</span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">Z </span></span><span class="20pt">轴坐标会往上走几毫米再停止。 我们认可理论和实际的误差，但 是应该把压力设在多少才是正常 的？既要满足主轴不会突然下 坠，又要满足机床的正常使用， 如何来调整呢？</span></p> <p class="20" align="left" style="text-indent: 21pt; line-height: 16.55pt; background: transparent;"><span class="20pt">首先，我们将氮气瓶中的压 力进行调整，然后将电动机刹车 松开，检查2轴坐标是否发生变化 (见表1)。</span></p> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="192" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="MsoNormal" style="line-height:8.0pt;mso-line-height-rule:exactly; mso-element:frame;mso-element-frame-width:144.0pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="59pt"><span style="font-size:8.0pt">表1</span></span></p> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:24.0pt;mso-height-rule: exactly"> <td width="65" valign="top" style="width: 48.7pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:9.35pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.0pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">平衡液压缸 的压力</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">/MPa</span></span></p> </td> <td width="26" style="width: 19.45pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">5.0</span></span></p> </td> <td width="24" style="width: 18.25pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">4.5</span></span></p> </td> <td width="25" style="width: 18.95pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">4.0</span></span></p> </td> <td width="24" style="width: 18pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">3.5</span></span></p> </td> <td width="28" style="width: 20.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">3.0</span></span></p> </td> </tr> <tr style="mso-yfti-irow:1;height:23.75pt;mso-height-rule:exactly"> <td width="65" valign="top" style="width: 48.7pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:10.1pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.0pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">2</span></span><span class="28pt"><span style="font-size:8.0pt">轴坐标 是否变化</span></span></p> </td> <td width="26" style="width: 19.45pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">增加</span></span></p> </td> <td width="24" style="width: 18.25pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">不变</span></span></p> </td> <td width="25" style="width: 18.95pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">不变</span></span></p> </td> <td width="24" style="width: 18pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">不变</span></span></p> </td> <td width="28" style="width: 20.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">减少</span></span></p> </td> </tr> <tr style="mso-yfti-irow:2;mso-yfti-lastrow:yes;height:14.15pt;mso-height-rule: exactly"> <td width="65" valign="top" style="width: 48.7pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:8.0pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.0pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">是否下坠</span></span></p> </td> <td width="26" valign="top" style="width: 19.45pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="24" valign="top" style="width: 18.25pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="25" valign="top" style="width: 18.95pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="24" valign="top" style="width: 18pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="28" valign="top" style="width: 20.65pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 14.15pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">是</span></span></p> </td> </tr> </tbody> </table> </div> </td> </tr> </tbody> </table> </div> <p class="20" style="margin-top:1.4pt;text-align:justify;text-justify:inter-ideograph; text-indent:21.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background: transparent"><span class="20pt">从表1中可以看出：①平 衡液压缸的系统压力不能高于 </span><span class="20pt"><span lang="EN-US">4.5</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">，</span>也不能低于</span><span class="20pt"><span lang="EN-US">3.5</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">。</span>② 不能影响机床的正常使用，在什 么情况下会影响平衡液压缸的使 用？主要是机床2轴的负载（这台 机床是通过各轴有效电流来反映 的）。③机床2轴的移动速度。</span></p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 21.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">机床在没有加装平衡液压缸 之前，2轴的伺服监控画面如图4 和表2所示。</span></p> <p class="20" align="left" style="text-indent: 21pt; line-height: 16.55pt; background: transparent;"><span class="20pt">可以看出，2轴在以</span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">G</span></span><span class="20pt"><span lang="EN-US">00 </span>(及</span><span class="20pt" style="line-height: 22.0667px; text-align: justify;"><span lang="EN-US">40</span></span><span class="2TimesNewRoman" style="line-height: 22.0667px; text-align: justify;"><span lang="EN-US" style="font-size: 10pt;">m/min</span></span><span class="20pt" style="line-height: 22.0667px; text-align: justify;"><span lang="EN-US">)</span>的速度上下移动时， 有效电流接近一致。</span></p> <div> </div> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:24.0pt;mso-height-rule: exactly"> <td width="134" valign="bottom" style="width: 100.55pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="right" style="margin-right:21.0pt;text-align:right; text-indent:0cm;line-height:10.3pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">2轴向上移动时 有效电流负荷（％)</span></span></p> </td> <td width="59" style="width: 43.9pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="margin-left: 10pt; text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">31 ?32</span></span></p> </td> </tr> <tr style="mso-yfti-irow:1;mso-yfti-lastrow:yes;height:24.25pt;mso-height-rule: exactly"> <td width="134" valign="top" style="width: 100.55pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="right" style="margin-right:21.0pt;text-align:right; text-indent:0cm;line-height:10.3pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">2轴向下移动时 有效电流负荷（％)</span></span></p> </td> <td width="59" style="width: 43.9pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="margin-left: 10pt; text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">28 ?29</span></span></p> </td> </tr> </tbody> </table> </div> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="193" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="MsoNormal"><span style="font-size:1.0pt"> </span></p> </td> </tr> </tbody> </table> </div> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 22.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">在加装平衡液压缸之后，在 移动速度不变的情况下，在调整 不同的氮气瓶压力时，发现机床 无法正常运行，伴随着机床振动 和异响。当压力降到</span><span class="20pt"><span lang="EN-US">2</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">Mpa</span></span><span class="20pt">时，机 床才恢复了正常运行（见表3 )。</span></p> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="193" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="MsoNormal" style="line-height:8.0pt;mso-line-height-rule:exactly; mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="50"><span style="font-size:8.0pt">表3</span></span></p> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:24.0pt;mso-height-rule: exactly"> <td width="89" valign="top" style="width: 66.7pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:9.35pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">平衡液压缸 的压力</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">/MPa</span></span></p> </td> <td width="28" style="width: 21.1pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US;mso-fareast-language: EN-US;mso-bidi-language:EN-US">4.5</span></span></p> </td> <td width="34" style="width: 25.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="margin-left: 8pt; text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">4.0</span></span></p> </td> <td width="41" style="width: 30.95pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="margin-left: 9pt; text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">3.5</span></span></p> </td> </tr> <tr style="mso-yfti-irow:1;height:23.75pt;mso-height-rule:exactly"> <td width="89" valign="bottom" style="width: 66.7pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:10.1pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">2轴向上移动时 有效电流（％)</span></span></p> </td> <td width="28" style="width: 21.1pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">7?8</span></span></p> </td> <td width="34" style="width: 25.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">9?10</span></span></p> </td> <td width="41" style="width: 30.95pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.75pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">11 ?12</span></span></p> </td> </tr> <tr style="mso-yfti-irow:2;mso-yfti-lastrow:yes;height:24.25pt;mso-height-rule: exactly"> <td width="89" valign="top" style="width: 66.7pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" style="text-align:justify;text-justify:inter-ideograph; text-indent:0cm;line-height:9.85pt;mso-line-height-rule:exactly;background: transparent;mso-element:frame;mso-element-frame-width:144.5pt;mso-element-wrap: no-wrap-beside;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal: column;mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">2轴向下移动时 有效电流（％)</span></span></p> </td> <td width="28" style="width: 21.1pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">2?3</span></span></p> </td> <td width="34" style="width: 25.7pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">4?5</span></span></p> </td> <td width="41" style="width: 30.95pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="margin-left: 9pt; text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">5?6</span></span></p> </td> </tr> </tbody> </table> </div> </td> </tr> </tbody> </table> </div> <p class="20" style="margin-top:4.4pt;text-align:justify;text-justify:inter-ideograph; text-indent:22.0pt;line-height:16.55pt;mso-line-height-rule:exactly;background: transparent"><span class="20pt">这种况下，平衡液压缸起不 到应有的作用。只有降低机床的 移动速度，将2轴的移动速度</span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">G</span></span><span class="20pt"><span lang="EN-US">00 </span>调整为</span><span class="20pt"><span lang="EN-US">20</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">m/min</span></span><span class="20pt"><span lang="EN-US">，</span>再配合平衡液 压缸的压力进行调试（见表4 )。</span></p> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="192" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="MsoNormal" style="line-height:8.0pt;mso-line-height-rule:exactly; mso-element:frame;mso-element-frame-width:144.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="50"><span style="font-size:8.0pt">表4</span></span></p> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:24.25pt;mso-height-rule: exactly"> <td width="75" valign="top" style="width: 55.9pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm; line-height:9.1pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:144.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">平衡液压缸 的压力</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">/MPa</span></span></p> </td> <td width="20" style="width: 14.9pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">4.5</span></span></p> </td> <td width="20" style="width: 14.9pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">4.0</span></span></p> </td> <td width="19" style="width: 14.15pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">3.5</span></span></p> </td> <td width="19" style="width: 14.15pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">3.0</span></span></p> </td> <td width="19" style="width: 13.9pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">2.5</span></span></p> </td> <td width="22" style="width: 16.3pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span lang="EN-US" style="font-size:8.0pt;mso-ansi-language:EN-US; mso-fareast-language:EN-US;mso-bidi-language:EN-US">2.0</span></span></p> </td> </tr> <tr style="mso-yfti-irow:1;mso-yfti-lastrow:yes;height:24.25pt;mso-height-rule: exactly"> <td width="75" valign="top" style="width: 55.9pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="text-align:center;text-indent:0cm; line-height:9.85pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:144.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="28pt"><span style="font-size:8.0pt">2轴移动是 否正常</span></span></p> </td> <td width="20" style="width: 14.9pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="20" style="width: 14.9pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="19" style="width: 14.15pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="19" style="width: 14.15pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="19" style="width: 13.9pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">否</span></span></p> </td> <td width="22" style="width: 16.3pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 24.25pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="left" style="text-indent: 0cm; line-height: 8pt; background: transparent;"><span class="28pt"><span style="font-size:8.0pt">是</span></span></p> </td> </tr> </tbody> </table> </div> </td> </tr> </tbody> </table> </div> <p class="20" style="margin-top:7.8pt;text-align:justify;text-justify:inter-ideograph; text-indent:22.0pt;line-height:16.1pt;mso-line-height-rule:exactly;background: transparent"><span class="20pt">经过上述尝试，平衡液压缸 的压力设定值可以设定在</span><span class="20pt"><span lang="EN-US">3.5 </span>~ </span><span class="20pt"><span lang="EN-US">4.5</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">，</span>所以我们将压力设定在 </span><span class="20pt"><span lang="EN-US">4.5</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">。</span>但是操作人员在机床上 进行钻孔作业时，机床出现了振 动。再经过多次的尝试，最终压 力调整在</span><span class="20pt"><span lang="EN-US">3.5</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">MPa</span></span><span class="20pt"><span lang="EN-US">，</span>2轴的</span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">G</span></span><span class="20pt"><span lang="EN-US">00</span>最快 速度设定由原来的</span><span class="20pt"><span lang="EN-US">40</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family:MingLiU">m/min</span></span><span class="20pt">调整 为</span><span class="20pt"><span lang="EN-US">20</span></span><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:10.0pt;mso-fareast-font-family: MingLiU">m/min</span></span><span class="20pt"><span lang="EN-US">，</span>此时机床加工才一 切正常。</span></p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 22.0pt;line-height:16.1pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">改装后的加工中心经过手动 断电测试，主轴再无自行坠落的 现象，设备使用过程中安全性得 到了保证。</span></p> <p class="130" style="margin-left:0cm;text-align:justify;text-justify:inter-ideograph; text-indent:22.0pt;line-height:9.5pt;mso-line-height-rule:exactly;mso-list: l0 level1 lfo1;background:transparent"><!--[if !supportLists]--><span lang="EN-US" style="letter-spacing: 1pt;">1.<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="131pt">结语</span></p> <p class="20" align="left" style="text-indent: 21pt; line-height: 16.3pt; background: transparent;"> </p> <p class="20" style="text-align:justify;text-justify:inter-ideograph;text-indent: 22.0pt;line-height:16.1pt;mso-line-height-rule:exactly;background:transparent"><span class="20pt">进口设备维修专业性强，技 术资料收集困难，每一次成功的 修理都能为企业节约成千上万的 经费。我们经过这次的研制，不 仅掌握了立式机床平衡系统的设 计原理及调试步骤，为公司节省 了 20万元以上的购买费用，同时 也为设备维修同行提供了宝贵经 验，充分认识了知识创造价值的 内涵。</span></p> </div> <p><span style="font-size:9.5pt;font-family:MingLiU;mso-bidi-font-family:MingLiU; mso-ansi-language:ZH-CN;mso-fareast-language:ZH-CN;mso-bidi-language:ZH-CN"><br clear="all" style="page-break-before:always;mso-break-type:section-break" /> </span></p></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a href='/index.php?case=tag&act=show&t=wap&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E7%AB%8B%E5%BC%8F%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>立式加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E6%95%B0%E6%8E%A7%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>数控加工中心</a> <a href='/index.php?case=tag&act=show&t=wap&tag=%E4%B8%BB%E8%BD%B4' target='_blank'>主轴</a> <!-- 分类 --> <div class="blank10"></div> 分类： <a href='/type_wap/jnc/type-1.html' target='_blank'>加工中心</a> <div class="blank30"></div> <!--自动调用自定义字段--> <div 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