The invention relates to the technical field of
machining and discloses a hydraulic telescopic cutter. The tool comprises a tool
turret, a differential mechanism shell, a hinge shaft, a connecting rod, a cutter bar, a fixing sleeve, a working cavity, an end face automatic tool, a tool telescopic control connecting rod, a tool telescopic
hydraulic cylinder, a
gasket and a ball cage tool, wherein aninner wall of the tool
turret is connected with an outer wall of the working cavity, an outer wall of the fixing sleeve is connected with an outer wall of the working cavity, an output end of the cutter telescopic
hydraulic cylinder is connected with a right side surface of the cutter telescopic control connecting rod, an outer surface of the cutter telescopic control connecting rod is connectedwith an inner wall of the
gasket, a left side face of the cutter telescopic control connecting rod is connected with a right side face of the cutter bar, an outer surface of the cutter bar is connected with an inner wall of the fixing sleeve, a head of the cutter bar is connected with an outer surface of the hinge shaft, and the end, away from the cutter bar, of the hinge shaft is connected with the end face automatic cutter. The cutter solves problems that
machining difficulty of an inner spherical surface of the differential mechanism shell is large, the requirement is high, and
machining cost of the inner spherical surface of the differential mechanism shell is high.