1. Tool point: The tool point is a reference point on the tool. The path of relative motion of the tool point is the processing path, also known as the programming path.
2. Tool setting and tool setting point: tool setting means that the operator makes the tool point coincide with the tool setting point through certain measuring means before starting the NC program. The tool setting instrument can be used for tool setting. The operation is simple and the measurement data is accurate. After positioning the fixture and installing the parts on the CNC machine tool, use the gauge block, feeler gauge, dial indicator, etc., and use the coordinates on the CNC machine tool to set the tool. For the operator, it is very important to determine the tool setting point, which will directly affect the machining accuracy of parts and the accuracy of program control.
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