Basic requirements for processing technology of precision mechanical parts

In the process of designing precision mechanical parts, not only must they meet the requirements for their use, that is, to have the ability to work required, but also in the process of operation, they should also meet the production requirements. It is easy to process in the process and the processing cost is very low. Such a part will be said to have good manufacturability to a certain extent.

The basic requirements of Changzhou machinery parts processing technology;

Changzhou Machinery Parts Processing

1. In the selection process of the blank, it is necessary to adopt the blank preparation method in its reasonable amount of mechanical manufacturing. During the operation, it will directly use its profile, casting, forging, welding and stamping methods. The choice is related to the specific production technical conditions, and generally depends on the production batch and the ability, performance and processing possibilities.

2. The structure of the processing of precision mechanical parts is very simple in the design process. The most simple surfaces and combinations are mainly used in the operation. To a certain extent, the number of processed surfaces should also be used as much as possible. And the processing area is the smallest.

3. For precision machinery parts processing, it is urgent to stipulate parts with proper manufacturing precision and surface roughness. The cost will increase with the increase of precision. This increase is extremely high in the case of high precision during operation. Significantly, therefore, high accuracy should not be pursued when there is no sufficient basis. In the same way, the surface roughness of the parts should also be appropriately regulated according to the actual needs of the matching surface.

4. When machining precision mechanical parts, to a certain extent, they design parts with good manufacturability. During the design process, they must be combined with process technology employees and be good at learning from them. In addition, in metal technology courses and manuals Both also provide some basic knowledge about manufacturability for reference.

The surface roughness of precision mechanical parts processing can effectively reflect the micro-geometric error of the surface of the parts to a certain extent. This is the main basis for checking the surface quality of the parts when they are used.

Operation steps of precision machining:

1. Finishing processing: This processing principle is roughly some grinding and polishing processing, which is usually a step performed after the product is completely completed.

2. Face first then hole: For precision mechanical parts, for workpieces such as brackets, it requires both plane processing and mechanical hole processing. In order to make the accuracy of the hole produced smaller, the plane is processed first Post-processing holes helps reduce errors.

3. Divide the processing stage: when the product is in the precision mechanical parts, it needs to be processed to different degrees according to different product requirements, and the processing degree needs to be divided. If the accuracy requirement is not high, then a simple roughing stage is enough. The schedule requirements of the products are becoming more and more strict, and the subsequent semi-finishing and finishing stages will be carried out.

4. Benchmark first: When processing products with mechanical equipment, a reference plane must be determined, so that there is a positioning reference during subsequent processing. After the reference plane is determined, the reference plane must be processed first. In precision mechanical parts, there are a lot of workpieces that are not produced by one-off, but when the workpiece is produced, it is just a rough model.