Analysis of positioning error in CNC machining

In the machining circuit, parts with high precision requirements are often encountered. Now let's understand the analysis of positioning error in processing technology

In terms of machining process, the positioning error is divided into many cases. The following shall be paid attention to during operation:

1. Positioning error refers to the positioning error of a machining accuracy parameter in the machining process of machining a part. It is an integral 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 shall be calculated respectively.

3. The premise of analyzing and calculating the positioning error is to use the fixture to clamp and process a batch of parts with the adjustment method to meet the processing requirements.

4. The positioning error calculated by analysis refers to the maximum positioning error range 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 position change of the design basis for processing a batch of parts relative to the fixture tool adjustment basis is the reason for the positioning error, not necessarily the positioning error.

These points simply understand the analysis and calculation of positioning error. There are many reasons for the error affecting the size in the process of precision CNC machining parts and mechanical parts machining.

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