When technician proposed course of support box body parts, the general should follow the “first to Yong hole” and “coarse fine separate” processing principle.
(1) the principle of first face and back hole. Cutting machine bracket box parts should be mainly processed flat (may also include some minor larger planes), after processing the bearing hole. The utility model can provide a stable and bad positioning datum for the hole processing, and can easily guarantee the machining precision of the hole and the technical requirements of the day. In addition, mainly to the level is assembling base bracket and body in the meal machine L, the first main processing plane can make the positioning and assembly methods of Huai distress overlap, thereby eliminating the positioning error caused by heavy reference station.
(2) the principle of separating coarse and fine. For cutting machine with high precision, just more support the box parts, in order to reduce the deformation of the calendar, to separate coarse and phase processing, i.e. after the main plane and the bearing hole in rough machining, finish machining surface of the rod. This is not only conducive to the rough, finishing between the aging treatment, but also to ensure the accuracy of processing. The precision is not very high, rigid good support box parts, rough and finish machining can be decilitre.
According to the above two principles, the process of high precision parts for casting blank box on a fire at a later don’t crossed orange [main plane and a supporting hole rough handling a crossed a finishing flat team finishing the main bearing hole processing of other secondary surface inspection
Post time: Apr-12-2022