Push-and-pull type clamping device

The utility model discloses a push-pull type holding device used on a tapping machine. The device comprises a fixed sleeve, wherein a fixed base is connected to the lower end of the fixed sleeve, the upper end of the fixed sleeve is connected with the middle part of a guide pipe, the lower part of the guide pipe is inserted into the fixed sleeve, a hollow pull tube is positioned inside the guide pipe, the upper end of the hollow pull tube is connected with the lower end of a spring stirrer, the spring stirrer is positioned inside the upper part of the guide pipe, a traction sleeve is connected between the front end of a push-and-pull rod and a guide taper sleeve which is sleeved outside the guide pipe, the lower end of the hollow pull tube is connected with a pull tube thrust nut, and a holding jaw conneted with the guide pipe is arranged between the pull tube thrust nut and the guide tapper sleeve. The stand-alone production efficiency is 1 to 3 times of the prior holding device, and the quality and the accu