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Safety overload tapping chuck is connected by the connecting sleeve, sleeve and the scale transition sleeve, the steel ball positioning two body.

Working principle: using 2 pin, 4 screws through a connecting sleeve, the CNC machine tool spindle and tapping chuck connected together, so first of all to ensure the connection precision tapping chuck and machine; a sleeve part, determine the tapping torque is required, a butterfly spring will force is pressed, composed of a steel ball positioning, linkage line sleeve, tapping.

Tapping chuck is a result of pressure by butterfly spring, old chuck is on the clutch transmission, new clamping chucks by steel ball. Clutch is toothed with, positioning is not fine, easy to wear, because only a group of butterfly spring force is not uniform, the use of a certain period of time, can not reflect the real butterfly spring force, influence. New clamping chucks, the ball is not easy to wear, accurate positioning; each group of 36, a total of 6 sets of high butterfly spring, ensure the uniform stress; scale sleeve with 200N? M and 1400N? M marker, according to tap torque size, determine the marker value, with the top thread 39 locks, prevent loose.

New safety overload tapping chuck added a security system. Tap, tap, squeeze hard material when the chip is hampered, tap don't work, also is the tap torque than the butterfly spring pressure, a tap scale sleeve and the transition connection sleeve positioning steel ball will move along the waist slot scale sleeve positioning hemispherical groove to the plane of the transition sleeve, then the machine spindle is rotating feed, chuck will not safety system to top off the tap; tapping chuck and the model has the advantages of safe system can prevent the occurrence of the accident. When the ball moves to the plane, tap stop turning, slipping, security system will start, 18 positioning steel ball copper sleeve, will be along the transition sleeve and the connecting sleeve positioning groove sliding, travel in 25mm ~ 50mm; the machine in the rotation, this part drives the connecting sleeve, sleeve with rotational transition the scale, and the sleeve portion, because tap tapping blocked and stops rotating, with 25mm ~ 50mm safety travel operator will find tapping blocked, stop the machine running in time, avoid the occurrence of accidents. Before the work twisting screw 1 adjusting the stroke, stroke adjustment is greater, the higher safety coefficient.