Positioning error of CNC process

Precision machinery parts processing first station (engaged in precision parts processing, professional CNC processing manufacturers)! In the machining circuit, the parts with high precision are often encountered. Now let’s understand the analysis of the positioning error in the processing technology

In terms of machining process, positioning error can be divided into various situations. The following should be paid attention to during operation:

1. Positioning error is the positioning error of a processing precision parameter in the processing of a part. It is a part of the machining error of the machining accuracy parameter.
2. A process and positioning scheme can produce different positioning errors for several machining accuracy parameters of the process. Therefore, the positioning errors of these machining accuracy parameters should be calculated respectively.
3. The premise of analyzing and calculating the positioning error is to ensure the accuracy of processing requirements by using fixture clamping and processing a batch of parts with adjustment method.
4. The positioning error obtained by analysis and calculation refers to the maximum range of positioning error that may occur when processing a batch of workpieces. It is a limit value, not a specific value of the positioning error of a workpiece.
5. The most important position change of the design datum of machining a batch of parts relative to the fixture tool adjustment datum is the cause of the positioning error, not necessarily the positioning error.

These simple understanding of the positioning error analysis and calculation, in the process of precision CNC machining parts, mechanical parts processing, there are many reasons affecting the size of the error.

ken. tang@chengcg.com