Clamp and method for milling tooth-shaped surface of sawtooth-shaped part

Abstract

The invention provides a clamp and method for milling a tooth-shaped surface of a sawtooth-shaped part. The clamp comprises a base, the base is provided with an inclined plane, the inclined plane is provided with at least two pressing plates, studs and positioning pins, the number of the pressing plates, the number of the studs and the number of the positioning pins are even, the connecting linesof the positioning pins and the two corresponding studs deviate from each other, the lower portion of the inclined plane is further provided with supporting pins, the supporting pins and the positioning pins are connected with the base in a matched mode, the ends, away from each other, of the two corresponding pressing plates make contact with the base, one ends of the studs are in threaded connection with the base, the other ends of the studs penetrate through the pressing plates, pressing nuts and locking nuts are arranged on the studs, the pressing nuts are located above the pressing platesand make contact with the pressing plates, and the locking nuts make contact with the base. By the adoption of the clamp and the method, the tooth-shaped face of the sawtooth-shaped part can be machined and formed in a milled mode, operation is convenient, errors caused by inclined movement are avoided, the tooth pitch and the surface roughness precision of sawteeth are guaranteed, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of machining zigzag parts, in particular to a jig and method for milling toothed surfaces of zigzag parts. Background technique [0002] Tooth-shaped workpieces are commonly used parts in transmission products. The tooth-shaped parts on the workpiece are usually processed by gear shaping, hobbing or wire cutting. Gear shaping and hobbing are mainly used for the processing of involute spline teeth, but it is difficult to process serrated workpieces. Although wire cutting can complete the zigzag processing of parts, it is troublesome to clamp and calibrate the workpiece, the efficiency of tooth processing is low, and the surface roughness is relatively large. If the surface of the zigzag is subsequently turned or polished, it is difficult to ensure grinding due to different zigzag surfaces. If the depth is consistent, it is easy to bring about changes in the inclination of the sawtooth, reduce the dimensional...

AI Technical Summary

Problems solved by technology

Shaping and hobbing are mainly used for the processing of involute spline teeth, but it is difficult to process serrated workpieces

Although wire cutting can complete the zigzag processing of parts, it is troublesome to clamp and calibrate the workpiece, the efficiency of tooth processing is low, and the surface roughness is relatively large. If the surface of the zigzag is subsequently turned or polished, it is difficult to ensure grinding due to different zigzag surfaces. The depth is consistent, which easily leads to changes in the inclination of the sawtooth, reduces the dimensional accuracy of the sawtooth, and destroys the original tooth profile angle.

Therefore, for Image 6 A type of sawtooth-shaped part shown in the figure has high precision requirements for the tooth pitch and surface roughness of the sawtooth, and cannot be formed by wire cutting

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