The tool setting point shall be unified with the design datum or process datum as much as possible to avoid the reduction of tool setting accuracy or even machining accuracy due to size conversion, which will increase the difficulty of NC program or part NC machining.
The accuracy of tool setting point depends not only on the accuracy of numerical control equipment, but also on the requirements of part processing. Manually check the tool setting accuracy to improve the quality of part numerical control processing. Especially in batch production, the repeated accuracy of the tool setting point should be considered, which can be checked by the coordinate value of the tool setting point relative to the machine tool origin.
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