Car transmission synchronizer gear ring fine blanking and deep drawing combined forming process and mold

Abstract

The invention relates to a car transmission synchronizer gear ring fine blanking and deep drawing combined forming process, which comprises the steps of primarily drawing a circular-plate metal blank to obtain a drawn member, and carrying out fine blanking and deep drawing combined forming on the drawn member. On the basis for completing the primary deep drawing by utilizing a primary deep drawing mold, the fine blanking and deep drawing procedure of a car transmission synchronizer gear ring can be completed through the fine blanking and deep drawing combined process and the mold thereof. Compared with the cutting machining or precise forging forming of the prior art, the procedures are reduced, the quantity of the molds is reduced, and the quality and the production efficiency of components are improved; meanwhile, no cutting machining is needed, and no friction material needs to be attached, so that the utilization rate of the material is high, and the precious metal is saved; and meanwhile, the machining process is simple, the multiple applications of a tool clamp can also be reduced, and the production cost can be reduced.

Description

technical field [0001] The invention belongs to the processing field of stamping and forming of a synchronizer gear ring of an automobile transmission, and specifically relates to a fine blanking and deep drawing die and the composite forming of fine blanking and deep drawing of a synchronizer gear ring of an automobile transmission using the same. Background technique [0002] Fine blanking is an advanced precision machining process. It can obtain parts with higher dimensional accuracy and smoother cross-section than ordinary blanking in one blanking process. It has the characteristics of high efficiency, low consumption, and high quality. Combining fine blanking with extrusion, deep drawing, bending and other processes can give full play to the advantages of fine blanking, reduce the number of processes, workpiece clamping times and equipment, and improve production efficiency and product quality. [0003] At present, the gear rings of the synchronizer of small and medium-...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a fine-blanking and deep-drawing composite forming process and mold for the synchronizer gear ring of an automobile transmission, aiming at ensuring the product quality while overcoming the need for many consumable materials, high cost, low material utilization rate and low production efficiency of the synchronizer gear ring of the automobile and other shortcomings

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