How to determine the reasonable tool setting point? What is the relationship between the workpiece coordinate system and the programming coordinate system?

1. The tool setting point can be set on the part to be processed, but it should be noted that the tool setting point must be a reference position or a finished part. Sometimes, after the first process, the tool setting point is damaged by CNC processing, which can lead to the second process and subsequent tool setting points being impossible to find. Therefore, during tool setting in the first process, it is important to establish a relative tool setting position at a place that has a relatively fixed dimensional relationship with the positioning reference, In this way, the original tool setting point can be found based on the relative position relationship between them. This relative tool alignment position is usually located on the machine tool workbench or jig. The selection principles are as follows:

1) It's easy to find.

2) Easy programming.

3) Small tool setting error.

4) Convenient and verifiable inspection during processing.