前言茂名职业技术学院CA6140普通车床的数控化改造设计摘要CA6140普通车床是金属切削加工中最常用的一类机床，当工件随主轴回转时，通过刀架的纵向移动和横向移动，车床能加工出内外圆柱面，圆锥面，端面，螺纹面等。普通车床刀架纵向和横向的进给运动由主轴的回转运动经挂轮传递而来，通过进给箱变速后，由光杆或丝杆带动溜板箱，纵溜板，横溜板移动。进给参数要靠手工预先调整好，如果要改变参数，则要停车进行操作。对CA6140普通车床进行数控化改造，主要是将纵向和横向进给系统改造成为CNC装置控制的能独立运动的进给伺服系统，将刀架改造成能自动换刀的回转刀架。这样，利用CNC装置，车床就可以按预先输入的加工程序进行切削加工。数控化改造后的车床就可以加工出各种形状复杂的回转零件，并能实现多工序自动切削，从而提高生产效率和加工精度，还能适应小批量，多品种复杂零件的加工。关键词：进给伺服系统，回转刀架CONVENTIONALLATHE'SNUMERICALCONTRALTRANSFORMATIONDESIGNSABSTRACTTheconventionallatheisinthemetalremovalprocessingamostcommonlyusedkindofenginebed,whentheworkpiecerotatesalongwiththemainaxle,throughtoolrest'slongitudinalshiftandthederailing,thelathecanprocessintheouterannuluscylinder,thecircularconicalsurface,theendsurface,theflankofthreadandsoon.Theconventionallathetoolrestlongitudinalandthecrosswisefeedmotionafterhangsaroundtransmissionbymainaxle'sgyroscopicmotiontocome,aftergearboxspeedchange,leadstheapronbythepolishedrodortheleadscrew,verticalapron,horizontalapronmigration.Tofeedparametermustdependonthepresettingmanually,ifmustchangetheparameter,thenmuststopcarriesontheoperation.Makesthenumericalcontroltransformationtotheconventionallathe,ismainlytransformsintolongitudinalandthecrossfeedsystemtheCNCinstallmentcontroltobeabletheindependencemovementtofeedserver,transformsthetoolrestcantradeknife'sturretsaddleautomatically.Thus,usestheCNCinstallment,thelathemayaccordingtotheprocessingprogramwhichinputsinadvancecarryonthemachining.Afterthenumericalcontroltransformation'slathemayprocesseachkindofshapecomplexrotationcomponents,andcanrealizethemulti-workingprocedurestocutautomatically,thusenhancementproductionefficiencyandworkingaccuracy,butcanalsoadaptthesmallbatch,multi-varietycomplexpartsprocessing.Keywords:tofeedserver,turretsaddle目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc309474188"前言PAGEREF_Toc309474188\h1HYPERLINK\l"_Toc309474189"第1章数控机床总体设计PAGEREF_Toc309474189\h4HYPERLINK\l"_Toc309474190"1.1总体方案设计PAGEREF_Toc309474190\h4HYPERLINK\l