石材桥式切割机数控系统的刀补研究

Research on Cutter Radius Compensation of Stone Bridge Cutting Machine CNC System

为了实现对石材轮廓的精确加工,不同刀具的刀补模块设计是开发数控系统的关键技术。通过对C机能刀补算法的研究,简述了刀补转接的几种类型及其判断算法,结合石材桥式切割机的加工特点,对锯刀、铣刀、磨刀的刀补算法进行了设计。采用PC+运动控制卡的硬件结构,以Visual C++作为开发软件,设计了石材桥式切割机的数控系统软件。运行石材桥式切割机的数控系统,对锯刀、铣刀、磨刀刀补进行仿真,并在工厂中进行加工测试。结果表明:该切割机能稳定运行,其刀补算法实现了自动刀具补偿功能。

In order to achieve accurate machining of stone contour,the design of cutter compensation module of different tools is the key technology for developing CNC system. Through the research of the C-function cutter radius compensation algorithm,several kinds of transforming of cutter compensation and its estimating algorithm were briefed,and by combining with the machining character-istics of the stone bridge cutting machine,the cutter radius compensation algorithm of sawing,milling and grinding were designed. By using the hardware structure of PC＆amp;motion control card,the stone bridge cutting machine CNC system software was designed and de-veloped with Visual C＋ ＋ software. Cutter compensation of sawing,milling and grinding were simulated,and the machining was test-ed in the factory. The results show that the machining of machine is stable,and the cutter radius compensation algorithm can realize automatic tool compensation function.