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What Are the Reasons for the Collision of the Tool Setter

Ⅰ. How do the parts of the tool setter work?

The core components of the tool setter are composed of a high-precision switch (probe), a high-hardness and wear-resistant cemented carbide tetrahedron (a tool setter probe) and a signal transmission interface device (the rest are omitted). The tetrahedral probe is in contact with the tool, and the force is transmitted to the high-precision switch through the flexible support rod installed below; the switch signal sent by the switch is transmitted to the CNC system through the signal transmission interface device for tool direction identification, calculation, compensation, and access.

For dynamic rotating tools, in addition to measuring and compensating the offset value in the tool length direction, it is also necessary to measure and compensate the offset value in the tool diameter direction (the two radii of the tool divided by the offset value of the axis). Otherwise, the machine cannot process a workpiece of the correct size.

Ⅱ. The reasons for the collision of the tool setter are roughly as follows:

1. The input of the diameter and length of the tool setter is wrong;

2. The size of the workpiece and other related geometric dimensions are entered incorrectly, and the initial position of the workpiece is incorrectly positioned;

3. The workpiece coordinate system of the machine tool is set incorrectly, or the machine zero point is reset during the machining process. Machine tool collisions usually occur during the rapid movement of the machine tool, which is very harmful and should be avoided.

Therefore, the operator should pay special attention to the machine tool during the initial stage of program execution and machine tool replacement. At this time, once the program is edited incorrectly and the tool diameter and length are entered incorrectly, collisions are likely to occur. At the end of the program, if the NC axis retracts the tool in the wrong sequence, a collision may occur.

In order to avoid the collision mentioned above, the operator should give full play to the five-sense function when operating the machine tool, and observe whether the machine tool has abnormal movement, whether there is spark, noise and abnormal sound, vibration, and a burning smell. If the working state of the machine tool is found to be abnormal, the working program of the machine tool should be stopped immediately.

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