As the production automation continues to improve, the application of Rail drilling machines is rapidly expanding, the variety and specifications of products continue to increase, performance and quality are constantly improving, and the market sales output value is also growing steadily.

So which problem do you meet when using rail drilling machines? How should it be solved?

1.Breakage of the tap of the drilling machine: Solution: When the tap of the drilling machine breaks, the diameter of the threaded bottom hole must be correctly selected; the inclination of the sharpening edge or the selected spiral groove tap should be used, and the depth of the drilled bottom hole must meet the specified standards; Appropriately reduce the cutting speed and select according to the standard; correct the tap and the bottom hole when tapping to ensure that their coaxiality meets the requirements, and select a floating tapping chuck; increase the tap rake angle and shorten the cutting cone length; ensure that the workpiece hardness meets the requirements , choose a safety chuck; if the tap is worn, it should be replaced in time.

2. Tap chipping; solution: tap chipping reduces the rake angle of the tap appropriately; increases the length of the cutting cone appropriately; reduces the hardness and replace the tap in time. If the tap wears too fast, reduce the cutting speed appropriately; reduce the tap rake angle and lengthen the length of the cutting cone; choose a cutting fluid with good lubricity; perform appropriate heat treatment on the workpiece; and sharpen the tap correctly.

3. The pitch diameter of the thread is too large; Solution: The pitch diameter of the thread is too large. Choose a tap pitch diameter with a reasonable accuracy level; select the appropriate cutting fluid and appropriately reduce the cutting speed; correct the coaxiality of the tap and the thread bottom hole when tapping. Use a floating chuck; appropriately reduce the rake angle and cutting cone relief angle; remove the burrs produced by sharpening taps, and appropriately increase the cutting cone length.

4. The thread pitch diameter is too small; Solution: If the thread pitch diameter is too small, choose a tap pitch diameter suitable for the accuracy level; appropriately increase the tap rake angle and cutting taper angle; replace the tap that is too worn; the automatic tapping machine should be lubricated Good cutting fluid.

5. The thread surface roughness value is too large; solution: the thread surface roughness value is too large, appropriately increase the tap rake angle and reduce the cutting taper angle; perform heat treatment, appropriately increase the hardness of the workpiece, and ensure that the tap rake surface has a lower surface Choose a cutting fluid with good lubrication for the roughness value; reduce the cutting speed appropriately; replace worn taps for the automatic tapping machine.

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