What is the principle of precision mechanical parts processing?

2024-11-12 10:15:32

1. Benchmark first

That is, the first processing of the reference plane, parts in the machining process, as the positioning of the appearance of the reference should be processed first, in order to provide a fine reference for the subsequent process of processing as soon as possible.

2. Division of processing stage

Machining quality request high appearance, are divided into processing stages, generally can be divided into roughing, semi finishing and finishing 3 stages. Mainly in order to ensure the quality of precision mechanical parts processing, is conducive to the scientific application of equipment, easy to arrange heat treatment process, and easy to find blank defects.

3. Face first and hole later

For the box, bracket and connecting rod and other parts should be processed after the plane processing hole. In this way, the hole can be processed by plane positioning, the position accuracy of the plane and the hole is ensured, and the processing of the hole on the plane is convenient.

4. Finishing

The finishing of the main surface, such as grinding, honing, fine grinding, rolling, etc., should be placed at the end of the process route. The formulation of the general principle of precision parts processing route, precision parts processing process planning, can be divided into two links. First, draw up the process route of parts processing, and then determine the process size of each process, the equipment and process equipment used, as well as cutting specifications, man-hour quota, etc.