In the field of hardware machining industry, there will be dimensions and processing steps on the machining drawings of mechanical parts, and the machining accuracy, that is, tolerance requirements, is required for the special position. The precision marked on the production drawing is to ensure that the actual geometric parameters of the hardware after machining are consistent with the size specified on the drawing, and the degree of inconsistency between them is called machining error. In the hardware machining line, the following three aspects should be paid attention to in order to ensure the accuracy tolerance of the production and processing drawings and avoid the machining error:
- Datum: select the same datum plane for processing, so as to reduce certain error range in clamping processing of hardware machining parts.
- Workpiece shape: for workpieces with special shape, fixture can be designed for positioning processing, so as to continuously achieve accuracy tolerance and improve production and processing efficiency.
- Processing technology: in the process of hardware machining, selecting reasonable machining technology can ensure the quality of production and processing, and also improve efficiency!
- Reasonable arrangement: according to the machining accuracy on the drawing, different machining equipment can be selected to complete the machining process. While ensuring the workpiece tolerance, it can also show the advantages of machining machine tools!
The above is the basic tolerance concept of hardware machining
ken. tang@chengcg.com
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