Today we will talk about the common problems of tapping machines and their solutions.
1. Top five problems in the tapping machine:
①Tap bits break
②Tap bits collapse
③Thread diameter too large
④Thread diameter too short
⑤Thread surface roughness value too large
The automatic tapping machine is an automatic production device, which is divided into fully automatic and semi-automatic. This equipment belongs to the field of thread forming machinery. The advantages of the equipment: reduce the work intensity of workers, improve the tapping efficiency, and ensure the safety of workers.
2. The following is the corresponding solution to the tapping machine problem
①The tap bits breaks correctly to select the diameter of the bottom hole of the thread; the angle of the sharpening edge or the spiral groove tap; the depth of the drill hole should reach the specified standard; the cutting speed is appropriately reduced, and the standard is selected; the tap and the bottom hole are corrected when tapping the thread. Ensure that the coaxiality meets the requirements, and select the floating tapping chuck; increase the taper front angle and shorten the length of the cutting cone; ensure the hardness of the workpiece meets the requirements, select the safety chuck; the anti-counter tap wear should be replaced in time.
② tapping teeth are properly maximized to reduce the taper rake angle; appropriately increase the length of the cutting cone; reduce the hardness and replace the tap in time. Tap wear (a basic type of component failure) is too fast to reduce the cutting speed; reduce the taper rake angle, lengthen the length of the cutting cone; use a good lubricity cutting fluid; appropriate heat treatment of the workpiece; correct edge grinding taps.
③If the diameter of the thread is too large, select the diameter of the tap with reasonable accuracy level; select the appropriate cutting fluid and reduce the cutting speed appropriately; correct the coaxiality of the tap and the bottom hole of the thread when tapping the thread, use the floating chuck; properly minimize the rake angle With the back angle of the cutting cone; remove the burrs from the sharpening tap and increase the length of the cutting cone as appropriate.
④If the diameter of the thread is too small, select the tap diameter of the appropriate precision grade; appropriately increase the taper rake angle and the cutting cone angle; replace the oversized tap that is worn (a basic type of component failure); use a good lubricating fluid.
⑤If the surface roughness value of the thread is too large, increase the taper angle of the tap to minimize the cutting cone angle; perform heat treatment, appropriately increase the hardness of the workpiece, and ensure that the taper rake face has a lower surface roughness value and select a lubricating fluid with good lubricity; Properly reduce the cutting speed; replace the tap that is worn (a basic type of component failure).
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