肺栓塞病人的护理措施及观察要点 图文.ppt

五轴加工中心的数控编程后置处理研究
摘要: 通常,直接利用通用后置处理器生成的NC代码与用户使用的数控机床和系统的要求不符,不能生成正确的加工程序,导致数控加工不能安全、可靠地进行,并且通用后置处理器不能输出机床数控系统所特有的辅助功能,使得数控机床特性功能的利用受到影响。
本课题针对MIKRON UCP 600 Vario型五轴加工中心及配置的Heidenhain iTNC 530数控系统进行了专用后置处理的研究,开发了后置处理程序,该程序能够根据刀位源文件生成数控加工程序,且无需二次更改,就可以实现五轴联动数控加工。
Heidenhain iTNC 530数控系统除了具备ISO标准的辅助功能以外,还有其它特有的辅助功能,针对辅助功能和五坐标数控加工机床的特殊性,利用UG/Post Builder后置处理器,实现了模态辅助功能指令M126、M128的输出和非模态辅助功能指令循环32的输出。通过用户自定义功能,以Tcl语言为开发语言,实现了在生成NC程序的同时输出总加工时间、每道工序的加工时间和刀具信息。将专用后置处理程序与UG集成,实现了在UG中调用后置处理程序自动生成数控加工代码。
关键词:五坐标加工数控编程后置处理加工仿真整体叶轮
指导老师签名:
Study on Post Processing for NC Programming of Five-axis Machining Center
Abstract:Usually, the NC code generated by the general post processor doesn't match with the request of the numerical control machine and the its system. Thus it cannot produce the correct processing procedure, results in the numerical control processing can not be carried out with safety and reliabitlity, furthermore, the general post processor cannot output the unique auxiliary function of the machine numerical control system, which causes the characteristics and functions of the numerical control machine
to be used efficaciously or correctly.
Aimed to MIKRON UCP 600Vario five-axis machining center and Heidenhain iTNC 530 numerical control system, the special-purpose post-processing was studied, and the post-processing programme was develope in this paper. This programme can produce NC processing procedure according to the cutter location source file, and it is not necessary to conduct second alteration, then it can realize five-axis simultaneously controlled NC processing.
Besides the ISO auxiliary function, HEIDENHAIN iTNC 530 numerical control system also has many other unique auxiliary functions. Aim to these functions and the particularity of five-axis NC machining and post-processing UG/Post Builder we conducted the output of the modality assistance function instruction M126, the M128 and the output of the non-modality assistance function instruction