龙门式三坐标数控钻铣床设计

Design for three coordinate CNC drilling and milling machine of gantry

普通钻铣床主要应用于机械修配车间,适合于单件小批量生产,可加工零件范围较广,具有较全面的通用铣床功能,既可以用于钻削加工,也可以用于铣削加工。为了提高普通钻铣床的自动化程度和加工范围,提出了机床的总体设计方案,讨论了机床的总体布局与传动方案,研究了机械传动系统和数控系统硬件的设计方法,设计了一台小型龙门式三坐标数控钻铣床。该小型龙门式三坐标数控钻铣床具有结构简单,刚性好,自动化程度和加工精度高以及操作维修方便等优点。

Ordinary drilling and milling machine,which is mainly used in mechanical repair workshop,is suitable for production with single piece or small batch.Since it could manufacture parts in a wider range with a comprehensive milling machine functions,it is usually applied both in drilling and milling.In order to improve automation and processing scope of the ordinary drilling and milling machine,an overall design plan is presented,in which the machine＇s overall layout and transmission scheme is discussed,the design method of the mechanical transmission system and CNC system hardware is studied as well as a mini-type coordinate gantry CNC drilling and milling machine is designed.The machine is characterized with those advantages,such as simple structure,good rigidity,high degree of automation and processing accuracy as well as easy for operation and maintenance.