Improved broaching machine

The utility model provides an improved broaching machine, and belongs to the technical field of machinery. The device mainly comprises a bed body, a guide rod, a pull rod, a movable base and a fixed base, the movable base and the fixed base are arranged in the groove, the guide rod and the pull rod are arranged in the groove, the pull rod is connected with an external hydraulic machine, and the movable base moves back and forth along the guide rod; a tool apron is rotationally installed on the movable base, a broach is installed on the tool apron, a supporting base is rotationally installed onthe fixed base, a supporting frame is installed on the supporting base, at least two supporting blocks are installed on the supporting frame, and tool grooves are formed in the supporting blocks. Theangle of the broach is adjusted by arranging the rotating tool apron, and the angle of the tool groove in the supporting block is adjusted by arranging the rotatable supporting seat on the fixed base, so that internal splines