Linear cutting machining clamp for internal spline tooth form of special spline housing

The utility model discloses a linear cutting machining clamp for an internal spline tooth form of a special spline housing. The clamp comprises a bottom plate (1), wherein a positioning core shaft (2) is arranged in the middle of the bottom plate (1); a pressing plate (3) is arranged above the bottom plate (1); supporting rods (4) are directly arranged on the bottom plate (1) and the pressing plate (3); a bolt (5) is arranged on the pressing plate (3); the bolt (5) passes through the pressing plate (3); and the bottom of the bolt is connected to the bottom plate (1). Due to the adoption of the positioning core shaft with high manufacturing accuracy, parts are accurately positioned and rapidly replaced, and an error, namely a position error, does not exceed 0.03; therefore, the internal spline tooth form of the special spline housing is machined on a linear cutting machine tool through the clamp, the working efficiency is equivalent to that of a slotting machine, the machining quality can be effectively guaranteed, and the defect in the process of machining the parts on the slotting machine is overcome. The clamp has a simple structure and a good using effect and is easy in implementation.