书表21硬质合金车刀的切削速度的参考表选择其计算公式为
1000vc∏d。进给速度的确定可以通过进给量和主轴速度得到具体按Ff×
计算这里我们查书表22硬质合金车刀的进给量参考表得到。切削右端面时主轴的转速为600rmm进给速度02mmr粗加工外轮廓时主轴的转速为500rmm进给速度02mmr精加工外轮廓时主轴的转速为500rmm进给速度015mmr切槽时主轴的
f转速为500rmm进给速度008mmr车螺纹时主轴的转速为500rmm进给速度015mmr切断时主轴的转速为600rmm进给速度015mmr。数控加工刀具卡片的如表12所示。表12数控加工刀具卡片
8螺纹有关参数的计算由零件图可知螺纹的螺距为15mm。螺纹的牙型深度为数控课程设计t065P065×150975mmD大D公称01P3001×152985mmD小D公称13P3013×152805mm螺纹加工分为四刀第一刀是Φ29mm第二刀是Φ285mm第三刀是Φ281mm第四刀是Φ2805mm编写加工程序如表13所示表13数控加工程序程序O001N001G50N002M03N003G00N004G01N005N006G00N007N008N009G00N010G72N011G00N012N013G01N014G01N015G01N016G01N017G01N018G02N019G02N020G03N021G02N022G01N023G01N024G01N025G00N026N027G00N028G01N029G04N030G01N031G00X80Z100S500T0101M07X70Z3Z0F02X1
fX80Z100T0100T0202S600X70Z3U10RI0P013Q022F03S500X80Z100T0200T0303S500X30Z3F015Z15X26Z20X36Z30Z38X30Z47R15X40Z62R25X25Z89R25X34Z101R25Z107X56Z118Z127X80Z100T0300T0404S500X40Z15X26F008X10X40X80Z100T0400注释建立工件坐标系主轴正传调用1号刀刀补开冷却液快速走到7030移到车端面原始点车端面进给量为02rmm快速回到换刀点取消1号刀补换2号刀主轴600rmm到循环起始点初加工切削循环返回换刀点取消2号刀补换3号刀精加工轮廓开始精加工30外圆进刀到2620精加工锥面精加工36外圆精加工R15外圆精加工R25外圆精加工R25外圆精加工R25外圆精加工34外圆精加工锥面精加工Φ56外圆返回换刀点取消3号刀补换4号刀快速移到4015切螺纹退刀槽停1秒退刀返回换刀点取消4号刀补6数控课程设计N032N033G00N034G92N035N036N037N038G00N039N040N041G00N042G01N043G00N044G00N045N046T0505X35Z5X29Z16F015X285X281X2805X80Z100T0500T0404S500X60Z127X1F01X60X80Z100T0400M09M05M30换5号刀快移至355切螺纹切螺纹切螺纹切螺纹返回换刀点取消5号刀补换4号刀快移至60127切断退刀返回换刀点取消刀补关冷却液主轴停止程序结束走刀路线图如表14所示r