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style="font-size:12.0pt;mso-font-kerning:0pt">1 </span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">数控坐标系简介</span><span lang="EN-US" style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><a href="http://www.bethel-cnc.com/" target="_blank"><span lang="EN-US" style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">数控机床</span></a></span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">的加工是由程序控制完成的</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">所以坐标系的确定与使用非常重要。根据</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">ISO841 </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">标准</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span lang="EN-US" style="font-size:12.0pt;mso-bidi-font-family:宋体;mso-font-kerning: 0pt"><a href="http://www.bethel-cnc.com/" target="_blank"><span lang="EN-US" style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">数控机床</span></a></span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">坐标系用右手笛卡儿坐标系作为标准确定。数控车床平行于主轴方向即纵向为</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">Z</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">轴</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">垂直于主轴方向即横向为</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">X </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">轴</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">刀具远离工件方向为正向。</span><span lang="EN-US" style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">数控车床有三个坐标系即机械坐标系、编程坐标系和工件坐标系。机械坐标系的原点是生产厂家在制造机床时的固定坐标系原点</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">也称机械零点。它是在机床装配、调试时已经确定下来的</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">是机床加工的基准点。在使用中机械坐标系是由参考点来确定的</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">机床系统启动后</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">进行返回参考点操作</span><span lang="EN-US" style="font-size: 12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">机械坐标系就建立了。坐标系一经建立</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">只要不切断电源</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">坐标系就不会变化。编程坐标系是编程序时使用的坐标系</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">一般把我们把</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">Z</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">轴与工件轴线重合</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,X </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">轴放在工件端面上。工件坐标系是机床进行加工时使用的坐标系</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">它应该与编程坐标系一致。能否让编程坐标系与工坐标系一致</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">使操作的关键。</span><span lang="EN-US" style="font-size:12.0pt;font-family:宋体; mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">在使用中我们发现</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,FANUC </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">系统与航天数控系统的机械坐标系确定基本相同</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">都是在系统启动后回参考点确定。</span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"> </p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">2 </span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">浅谈两种系统坐标系的确定</span><span lang="EN-US" style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">FANUC </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">系统确定工件坐标系有三种方法。</span><span lang="EN-US" style="font-size:12.0pt;font-family: 宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">第一种是</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">:</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">通过对刀将刀偏值写入参数从而获得工件坐标系。这种方法操作简单</span><span lang="EN-US" style="font-size: 12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">可靠性好</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">他通过刀偏与机械坐标系紧密的联系在一起</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">只要不断电、不改变刀偏值</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">工件坐标系就会存在且不会变</span><span lang="EN-US" style="font-size: 12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">即使断电</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">重启后回参考点</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">工件坐标系还在原来的位置。</span><span lang="EN-US" style="font-size:12.0pt;font-family: 宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">第二种是</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">:</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">用</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">G50 </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">设定坐标系</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">对刀后将刀移动到</span><span lang="EN-US" style="font-size:12.0pt; mso-font-kerning:0pt">G50</span><span style="font-size:12.0pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">设定的位置才能加工。对到时先对基准刀</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">其他刀的刀偏都是相对于基准刀的。</span><span lang="EN-US" style="font-size:12.0pt; font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">第三种方法是</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">MDI </span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">参数</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">运用</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">G54~G59</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">可以设定六个坐标系</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning: 0pt">,</span><span style="font-size:12.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">这种坐标系是相对于参考点不变的</span><span lang="EN-US" style="font-size:12.0pt;mso-font-kerning:0pt">,</span><span style="font-size: 12.0pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">与刀具无关。这种方法适用于批量生产且工件在卡盘上有固定装夹位置的加工。</span><span lang="EN-US" style="font-size:12.0pt;font-family:宋体;mso-bidi-font-family:宋体; mso-font-kerning:0pt"><o:p></o:p></span></p> <p> </p> <p class="MsoNormal" align="left" style="text-indent: 24pt;"><span lang="EN-US" 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