Covering trompil auxiliary fixtures

The utility model relates to a covering trompil auxiliary fixtures, traditional course of working exist that system hole precision is low, the deviation is big, change to mill the back partization tomill district's deviation big, lead to rejection rate of the part high. The utility model relates to a covering trompil auxiliary fixtures, auxiliary fixtures is the rigidity piece, and it has two locating holes and drill bushing to open, the drill bushing be used for locating drill bit and provide stable support for the drill bit, the locating hole is used for with the mould fixedly, and the mould is provided with holing position, and auxiliary fixtures fixes behind the mould, the drill bushing corresponds holing position. Simplify the course of working by a wide margin, improved system holeprecision. Practice thrift working hour cost, shortened production cycle. And the machining efficiency is improved. The part steady quality. 本实用新型涉及种蒙皮开孔辅助工装，传统加工过程存在制孔精度低、偏差大，化铣后零件化铣区偏差大，导致零件报废率高。本实用新型种蒙皮开孔辅助工装，所述辅助工装为刚性件，开有两