论文部分内容阅读
复杂自由曲面型面的模具加工,一直是模具行业中一个比较重要的研究方向,传统的人工翻模工艺和仿形加工方法,已不再适应于现代化的生产需要,为此,本文提出了一种利用高精度数字化模型,自动进行凹凸模转换,自动产生凹凸模具的粗、精加工数控程序的方法。并在此基础上,开发了适在于大型复杂曲面模具的加工的 CAM 软件系统。该软件系统可根据不同的刀具半径自动产生凹凸模具的加工轨迹,并向动进行干涉校验,其通用后处理可产生适合于各种数控机床的加工指令。
The mold processing of complex free-form surfaces has always been a relatively important research direction in the mold industry. The traditional manual mold turning and profiling methods are no longer suitable for the needs of modern production. Therefore, this paper presents a The use of high-precision digital model, automatic conversion of punch and die, punch and die automatically generated rough, finishing NC program. Based on this, a CAM software system suitable for machining large complex curved molds has been developed. The software system can automatically generate the toolpath of the concave and convex mold according to the different tool radius, and check the interference by moving. The general post-processing can produce the processing instructions suitable for various CNC machine tools.