Tapping machines often occur in the production of problems and solutions
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First, the six common problems in tapping machines:
1. tap broken.
2. Tap broken tooth.
3. Tap wear too fast.
4. The diameter of the thread is too large.
5. The thread diameter is too small.
6. The thread surface roughness is too large.
Second, the above solution to the problem of tapping machine:
1. The tap breaks correctly to select the diameter of the bottom hole of the thread. Sharpening edge inclination or use spiral groove tap. The depth of the drilled bottom hole must meet the required standards. Appropriately reduce the cutting speed and select according to the standard. Correct tap and bottom hole when tapping, ensure its coaxiality meets requirements, and use floating tapping chuck. Increase the rake angle and shorten the length of the cutting cone. To ensure the hardness of the workpiece meets the requirements, use the safety chuck. Anti-county tap wear should be replaced in time.
2. Tap cones reduce the rake angle properly. Appropriately increase the length of the cutting cone. Reduce hardness and replace taps in time. Tap wear too quickly to properly reduce the cutting speed. Reduce the rake angle and lengthen the length of the cutting cone. Use a good lubricating fluid. Appropriate heat treatment of the workpiece. Sharpen the tap correctly.
3, the diameter of the thread is too large to choose a reasonable precision grade tap diameter. Select the appropriate cutting fluid and reduce the cutting speed appropriately. When tapping, correct the concentricity of the tap and the bottom hole of the thread and use a floating chuck. Appropriately reduce the rake angle and the cutting cone back angle. Remove burrs from sharpened taps and increase the length of the cutting cone.
4, the thread diameter is too small to select the appropriate precision grade tap diameter. Appropriately increase the rake angle and cutting cone angle. Replace worn taps. Use a good lubricating fluid.
5, the thread surface roughness value is too large to increase the front angle of the tap to reduce the cutting cone angle. Heat treatment, appropriate to improve the hardness of the workpiece, to ensure that the rake face surface of the tap has a low surface roughness value, select a good lubricating fluid. Reduce the cutting speed appropriately. Replace worn taps.
When the tapping machine has problems, it needs to be dealt with promptly. It is better not to wait until the end of the day after processing to be free to reprocess it. In case of expansion, the resulting greater loss will not be good.
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