飞机工艺装备中的卡板、型胎等,多数具有变斜角。这种变斜角的加工,大多是分段按不变角度铣切,然后手工流线。有些单位用三坐标铣床进行分段加工或分层加工,但手工修整的工作量还是不小。利用空间角度的合成在普通铣床上加工变斜角,在目前缺乏四、五坐标数控机床的情况 Aircraft technology and equipment in the pallets, type of tire, etc., most have a variable angle. This variable bevel processing, mostly segmented according to the same milling angle, and then manual streamline. Some units with three-coordinate milling machine for sub-level processing or stratified processing, but the manual trimming workload is not small. The use of space from the angle of synthesis in the ordinary milling machine processing bevel, in the current lack of four or five coordinates of CNC machine tools