The chuck of the tapping machine has the function of torque protection. The shell of the chuck is connected to the main shaft of the tapping machine, and the core in the middle is clamped with the taps. The core and shell in the middle are locked tightly by a spring piece. 2 pin, 4 screws through the connecting sleeve, the NC machine tool spindle and tapping chuck connected together, so first ensure that the connection precision tapping chuck with the machine; the outer sleeve, determine the required tapping torque, butterfly spring force will be pressed by the steel ball positioning, linkage line the sleeve, tapping.
Here we simply talk about the adjustment of the torque size.
1. torque is too big: tapping machine attack in the end will not skid will break the taps, indicating that the torque is too large, tapping machine clamp torque should be adjusted. Remove circlip, counterclockwise twist loose, more than M8 can be put in the tightening fixture, put on the card (spring is very important, is not installed, with a period of time will be loose, and smaller torque).
The 2. torque is too small: the spindle will turn when the tapping machine works, but the taps can't be attacked, indicating that the torque is too small and the torque of the tapping machine should be adjusted. Remove circlip, clockwise twist, above M8 can be placed in tightening fixture, put on the card (spring is very important, is not installed, with a period of time will be loose, and smaller torque).
