Automatic change tapping machine device

The utility model relates to an automatic change tapping machine device, including the tapping machine body, the screw tap of processing screw thread is installed to the tapping machine body, and thescrew tap is installed on the main shaft, still includes pneumatic fixture: be used for the centre gripping to wait to process the part, locate the lower part of screw tap, including the air jig and control the solenoid valve of pneumatic anchor clamps, lubrication and cooling mechanism: it lubricates and cools off to be used for treating the processing part, processing control mechanism: a go upstopper and stopper down, with last stopper complex on limit switch, with stopper complex down under limit switch, go up limit switch, down limit switch and solenoid valve all be connected to automatically controlled cabinet that is used for the automatic control thread processing degree of depth, and include the depth control screw rod, install on the depth control screw rod. compared with the prior art, the utility model