成考院校在线答案
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">1、<span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">在数控车床上，用绝对值编程时，</span><span lang="EN-US" style="color:windowtext">X</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext">以直径表示；用增量值编程时，以径向实际位移的二倍位移值表示。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">33、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;color:windowtext">数控钻床、数控镗床、数控冲床属于点位控制机床。<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">20、<span style="font-family:Microsoft Yahei;mso-hansi-font-family:"Times New Roman";color:windowtext; mso-bidi-font-weight:bold">数控系统具有刀具半径补偿功能，则可用同一加工程序，实现对零件的粗、精加工。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">32、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:ˎ̥; mso-hansi-font-family:ˎ̥;color:windowtext">轮廓控制机床的特点是要控制刀具移动轨迹，将工件加工成一定的轮廓形状。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">1、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:ˎ̥; mso-hansi-font-family:ˎ̥;color:windowtext">由于半闭环伺服统是直接以工作台的最终位移为目标，从而消除了进给长度系统的全部误差，所以控制精度高。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" align="left" style="margin-top:7.8pt;margin-right:0cm; margin-bottom:0cm;margin-left:0cm;margin-bottom:.0001pt;mso-para-margin-top: .5gd;mso-para-margin-right:0cm;mso-para-margin-bottom:0cm;mso-para-margin-left: 0cm;mso-para-margin-bottom:.0001pt;text-align:left;text-indent:0cm; mso-list:l0 level1 lfo1">9、 <!--[if !supportLists]--><span lang="EN-US" style="mso-bidi-font-size:10.5pt;mso-fareast-font-family:"Times New Roman"; color:windowtext;mso-font-kerning:0pt"><span style="mso-list:Ignore">1、<span style="font:7.0pt "Times New Roman""> </span></span></span> <!--[endif]--><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">某反应式步进电机，相数</span><span lang="EN-US" style="color:windowtext">m=4</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";color:windowtext">，转子齿数</span><span lang="EN-US" style="color:windowtext">Z=60</span><span style="font-family:Microsoft Yahei; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; color:windowtext">，控制方式系数</span><span lang="EN-US" style="color:windowtext">K=1</span><span style="font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";color:windowtext">，则步距角</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning:0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">5、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:ˎ̥; mso-hansi-font-family:ˎ̥;color:windowtext">在数控机床上加工平面轮廓时，可用两轴联动机床加工。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">2、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:ˎ̥; mso-hansi-font-family:ˎ̥;color:windowtext">数控机床的刀具半径补偿功能是指在轮廓加工时，刀具中轨迹总是相对于编程轨迹偏移一个半径值。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">19、<span style="font-family:Microsoft Yahei;mso-hansi-font-family:"Times New Roman";color:windowtext; mso-bidi-font-weight:bold">某反应式步进电机，相数<span lang="EN-US">m=4</span>，转子齿数<span lang="EN-US">Z=60</span>，控制方式系数<span lang="EN-US">K=1</span>，则步距角为<span lang="EN-US">1.5</span></span><span lang="EN-US" style="font-family:Symbol; mso-ascii-font-family:Microsoft Yahei;color:windowtext;mso-char-type:symbol;mso-symbol-font-family: Symbol;mso-bidi-font-weight:bold"><span style="mso-char-type:symbol; mso-symbol-font-family:Symbol">°</span></span><span style="font-family:Microsoft Yahei; mso-hansi-font-family:Symbol;color:windowtext;mso-bidi-font-weight:bold">。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>
- 2022-09-12 [判断] <p class="MsoNormal" style="margin-top:7.8pt;mso-para-margin-top:.5gd">4、<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:ˎ̥; mso-hansi-font-family:ˎ̥;color:windowtext">开环控制数控机床的特点是控制系统不带反馈装置。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;color:windowtext;mso-font-kerning: 0pt"> <o:p></o:p></span></p>