MECHANICAL-CLAMPED PUSH-TYPE RECTANGULAR SPLINE BROACH

The utility model relates to a mechanical-clamped broach tool for finish machining the groove lank of a spline pore. The mechanical-clamped push-type rectangular spline broach is composed that the blade of the push-type broach is a beam form structure in T-shaped, two side faces of the push-type broach are provided with cutting teeth, and the blade is clamped through a screw and a clamping bush; the axial direction of the push-type broach bar is provided with gaps, and the lower end of each of the gaps is provided with a round pore and a thread pore; the side face on the upper end of the clamping bush (5) is glidingly matched with the gap, and a cylinder on the lower end of the clamping bush is glidingly matched with the round pore; the blade along the axial direction is penetrated into the groove of the broach bar, the blade is tightly closed to one side of the blade after the screw screwed, and the blade and the broach bar are clamped; the round nut and the fore and after retaining rings can prevent the blade from moving along the axial direction, and the round nut and the fore and after retaining rings can be used as a guide post of the broach tool.