随着军用武器系统多功能、多用途的快速发展.光电跟踪制导仪关键构件在制造工艺上呈现出结构轻量化、造型复杂化、加工精细化,制造快速响应化等发展趋势.本文以某光电跟踪仪关键构件安装座零件在加工中存在的结构刚性差,形位公差精度难保证、加工震颤大,加工中易扭曲变形等问题为解决目标,进行加工工艺方法的试制研究.

In the mechanical compensation continuous zooming system,cam-curve muff is the key part.The precision and surface quality of zooming cam slot and compensating cam slot have a great influence on the image.Thicken ruled surface mode was used to finish the modeling of cam slot,and tolerance control of matrix groups points was applied in fitting curve line.Using 4-axis climb-milling tool path mode,the tool start point and retracting point were processed in a special method,the cam slot was accomplished.The experiment indicates the precision and surface quality of the cam slot are greatly improved.

本文以某项目的光学玻璃零件为研究对象,通过科学的理论验证和推理以及有限元分析最终完成了对玻璃零件的加工,最终结果证实了运用金属类切削机床加工玻璃零件的可行性,以此推广到机械加工中,可以解决部分超出现有光学加工设备加工范围、部分加工技术难点和加工能力瓶颈的有色金属和晶体锗类光学玻璃的零件金属切削问题,这一研究打破了光学玻璃只能在光学专业机床上加工传统观念,开创五轴加工中心加工玻璃零件的先例,为本单位甚至国家的智能制造提供了宝贵的资料.

While dealing with cutting of multi-pipe intersection curve,a practical algorithm of motion track and torch posture is proposed based on a predigesting slope model.Computational models of intersection curve are given with parametric 3D mode,and the conversion method is constructed from 3D model data to 6 axis numerical code.The cutting experiment shows the effectiveness of this method.