Crankshaft positioning clamp of crankshaft pressing machine

The utility model relates to the technical field of crankshaft positioning clamps, in particular to a crankshaft positioning clamp of a crankshaft press-fitting machine, which comprises a base, a fixing screw hole is arranged on one side face of the base, the base is mounted at a press-fitting position through the fixing screw hole, and a first positioning seat and a second positioning seat are in threaded connection with the base. One end of a connecting rod is in threaded connection with a cover plate, the other end of the connecting rod extends into a first positioning seat, a clamping block is inserted, a movable sliding groove is clamped and fixed, the two ends of a crankshaft are correspondingly placed in limiting grooves, the cover plate is turned over, a fixing bolt is inserted through a first positioning screw hole and a second positioning screw hole, and the positioning holes and fixing screw holes in the fixing grooves are in threaded connection. The cover plate can be driven to descend to be attac