HNC 21T系统数控车床三种实用对刀方法.pdf

学兔兔 机械工程师 萋 垒 0盎 鬟≤墓 HNC 21T系统数控车床的三种实用对刀方法 陈青艳， 龚东军 武汉软件工程职业学院，武汉 430205) Three Useful Tool Setting Methods in HNC 21T System NC Lathe CHEN Qingyan。 GoNG Don【西an (Wuhan Vocational College of Software and Enginee~ing，Wuhan 430205，China) Abstract：According to part drawing，the students can program manual ly N C programming in teaching process of the CNC production training；but most of them don t process qua]ified parts because of the lack of the adjusting tool S knowledge． Three different useful and practical manual tool setting methods are given by using HNC 21T system in NC lathe．Through the manual NC program complex pads example in the CNC production training teaching process，this paper uses three manual tool setting methods，namely cutter compensation T，G54-G59，and G92 in turn．The steps of these tool setting methods are discussed．The instructive principle is certainly given for the praetical manual adjusting tool of teaching and small and medium—sized enterprises． Key words：HNC 21T system；coordinate system；NC lathe；practical tool setting methods；manual NC programming 0 引 言 介绍数控车床HNC 21T系统实用试切对刀方法的对刀 数控车床具有成本低，而且能够满足生产自动化、新 前准备、对刀具体步骤、对刀后操作及其注意事项，以方 产品开发、小批量及多品种要求，成为最广泛应用的数控 便数控车床推广使用。 机床。 1 使用刀具补偿T指令对刀 目前，数控车床的数控系统主要有SIEMENS系统、 1．J 蚺7】贰准备i作 FANUC系统、GSK广州数控系统及HNC华中世纪星系 1)设置工件参数，本实例中设置工件长度￡ l80mm； 统，其中华中地区的大部分高职院校中选择HNC华中世 工件直径d=60mill。 纪星系统。公开文献 j中介绍了单刀对刀为主，而文献 2)刀具安装在刀架的一号刀位上