自动测量与加工的仿形车床专用数控系统开发  

The development of special CNC system for profiling lathe based on automatic measurement and process

作　　者：王平江[1] 吴扬[1] 齐江飞[1] 陈吉红[1] 向华[1] 

机构地区：[1]华中科技大学国家数控系统工程技术研究中心,武汉430074

出　　处：《现代制造工程》2015年第9期74-80,103,共8页Modern Manufacturing Engineering

基　　金：国家科技重大(04)专项课题资助项目(2012ZX01029-001);国家科技重大(04)专项课题资助项目(2012ZX04001-012);国家科技重大(04)专项课题资助项目(2012ZX04001-022)

摘　　要：以实现数控仿形车床的测量与加工功能为目标,研究包括仿形数据采集方法、自动生成从粗加工到精加工G代码程序的处理算法等关键技术。在同样工件批量加工之前,利用激光遮断式位置传感器沿规划的路径逐点接近样品工件,通过数控系统的位置锁存功能、激光传感器通断状态信号,采样获得工件轮廓上一系列数据点;再经过后续的轮廓分段、滤波等处理,生成从粗加工到精加工的G代码程序。实践表明:开发的仿形车床专用数控系统不仅集自动仿形数据采集、自动生成加工G代码程序功能于一体,而且具有结构简单、易操作和高效率的特点。Aimed at the goal of measuring and processing functions for CNC profiling lathe, it has conducted researches on the key technologies of CNC system development, including the profiling data collection methods, processing algorithms of automatically generated from roughing to finishing G-code program. Before the same workpiece batch processed, use on-off-type laser sensor a- long the planned path close to the sample workpiece point by point, and get series of coordinate points of the contour through the CNC system position latch function and the switch of senor＇ s state; through subsequent processing methods ： contour segmentation, curve filtering, etc. And generate the G-code program from roughing turning to finishing turning. Practice shows that this special CNC system for profiling lathe, not only integrates automatic profiling data acquisition, automatic generation of process G code pro- gram, and has the characteristics of simple structure, easy operation and high efficiency.

关 键 词：仿形车 仿形测量 轮廓分段 路径优化 

分 类 号：TH16[机械工程—机械制造及自动化] TP29[自动化与计算机技术—检测技术与自动化装置]