Eccentric shaft turning clamp device and machining method

Abstract

The invention discloses an eccentric shaft turning clamp device and a machining method. The device comprises a base, a clamp body, a positioning pin, a screw, a spring collet, a limiting pin and a nutsleeve. The spring collet holds an eccentric shaft through a tensioning groove, the limiting pin and the groove are matched for limiting the rotation degree of freedom of the eccentric shaft, thus, stable and efficient rotation of the eccentric shaft in the turning process is ensured, and the product yield is increased, so that the eccentric shaft is clamped simply and efficiently in the turningmachining process, the device is simple in structure and low in cost, further, after first-stage eccentric machining is completed, the spring collet and the clamp body of the eccentric shaft blank aremounted, the clamp body structure does not need to be replaced, and multi-stage eccentric machining is achieved conveniently and quickly. Furthermore, if the shaft diameter of the to-be-machined eccentric shaft changes, only the size of the spring collet needs to be replaced, the whole set of clamp device does not need to be replaced, and convenience and fastness are achieved. Meanwhile, machining of a variety of eccentric shaft parts can be achieved by changing the eccentric distance on the base.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to an eccentric shaft turning fixture device and a processing method. Background technique [0002] The RV reducer product is the product with the highest stiffness and precision in the world under the same volume. At the same time, the RV reducer also has strong impact resistance, low noise and high fatigue life. The RV transmission combines the cycloidal pinwheel reduction transmission with small tooth difference and the planetary transmission into one, forming a new type of transmission with two-stage reduction. Therefore, the principle structure of the RV reducer determines its inherently extremely demanding zero Part accuracy. The eccentric shaft is used as a high-precision component in the RV reducer, and its machining accuracy directly determines the function of the reducer. The eccentricity tolerance of the eccentric shaft in the RV reducer requires 0.003, th...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of eccentric shaft turning fixture device and processing method, realize the purpose of lathe processing similar eccentric shaft, to solve the clamping device structure operation complicated and costly when using the jig grinder to process the eccentric shaft in the prior art The high problem ensures that the machining accuracy of the eccentric shaft is within 0.003

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