Precision parts machining line is to develop the overall layout of the development
Drawn precision parts machining process route general principles
Precision parts process planning formulation, can be roughly divided into two steps. The first is to develop parts processing process route, and then determine the size of each step of the procedure, the use of equipment and process equipment as well as cutting specification, fixed working hours and so on. These two steps are interrelated and should be analyzed.
Precision parts processing route is to develop the process of preparation of the general layout, the main task is to choose various surface processing methods to determine the order of the respective machining surface, and the whole process much number of steps and the like.General principles drawn routings
1, the first processing plane
Parts in the machining process, as the positioning reference surface should first be processed out as soon as possible in order to provide a benchmark for fine machining of the succeeding process. Called "reference first."
2, divide the processing stage
Machining high surface quality requirements are divided into stages of processing, generally can be divided into roughing, semi-finishing and finishing three stages. Mainly to ensure processing quality; conducive to the rational use of equipment; easy to arrange a heat treatment step; and found easy to rough defects.
3, after the first surface hole
For housing, bracket and connecting rod parts should be processed hole machining plane. So that it can locate a plane machined hole to ensure the accuracy of the position of the plane and the hole, and easy machining hole on a plane to bring.
4, finishing
Finishing the main surface (such as grinding, honing, grinding roll processing, etc.), should be placed on the final stage of the process route.
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