Clamping device used for finish machining of cold extrusion gear

Abstract

The invention discloses a clamping device used for finish machining of a cold extrusion gear. The clamping device used for the finish machining of the cold extrusion gear comprises a chuck body; grooves are formed in the chuck body and screw rods are arranged in the grooves; one end of each screw rod is fixedly connected with an output shaft of a speed reducing motor by a coupling and the other end of the corresponding screw rod is rotationally connected with a bearing seat; both the speed reducing motors and the bearing seats are fixedly arranged in the grooves; nut seats are arranged on thescrew rods in a sleeving manner and fixedly connected with the middle parts of the side surfaces of clamping jaws; the two ends of the side surfaces of the clamping jaws are connected with guiding rails arranged at the two sides of the grooves in a sliding manner; kidney shape holes are formed in the clamping jaws and clamping strips are arranged at the lateral sides of the clamping jaws; one endsof the clamping strips are fixedly connected with the clamping jaws by bolts and nuts. According to the device, the screw rods, the kidney shape holes, the clamping strips, a rotary shaft and dividing rulers are arranged, so that the problems can be solved that a gear fixture is inconvenient to adjust and unadapted to the gears with different tooth pitches during the finish machining of the coldextrusion gear.

Description

technical field [0001] The invention relates to the technical field of cold extrusion gear processing equipment, in particular to a clamping device for finishing cold extrusion gears. Background technique [0002] Cold extrusion is to put the metal blank in the cold extrusion die cavity, and at room temperature, apply pressure to the blank through the fixed punch on the press to make the metal blank produce plastic deformation and make parts. At present, our country has It can cold extrude metals such as lead, tin, aluminum, copper, zinc and their alloys, low carbon steel, medium carbon steel, tool steel, low alloy steel and stainless steel, even bearing steel, high carbon and high aluminum alloy tool steel , high-speed steel, etc. can also be cold-extruded with a certain amount of deformation. Cold-extrusion is one of the processing techniques for parts without chips and less chips. Therefore, it is an advanced process in plastic processing of metal chips. Cold-extruded gea...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a clamping device for cold extrusion gear finishing, which solves the problem of inconvenient adjustment of gear clamps and inability to adapt to the clamping of gears with different pitches in the process of cold extrusion gear finishing

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