Special tool for spinning process of T-shaped deep stretching type plate belt wheel

Abstract

The invention relates to a special tool for a spinning process of a T-shaped deep stretching type plate belt wheel. A core mold fixture is formed by an upper core mold and a lower core mold, wherein the upper core mold is connected with an upper connecting disk; the lower core mold is connected with a lower connecting disk; a first preforming rotating wheel, a second preforming rotating wheel, a primary forming rotating wheel and a finishing rotating wheel are correspondingly mounted on respective rotating wheel shafts; the first preforming rotating wheel is a heaping wheel; the forming surface of the first preforming rotating wheel comprises an annular groove located in the middle part, an upper forming cylindrical surface located at the upper part of the annular groove and a lower forming cylindrical surface located at the lower part of the annular groove; the bottom surface diameter of the upper forming cylindrical surface is greater than that of the lower forming cylindrical surface; the second preforming rotating wheel is a flat wheel; and the forming surface of the second preforming rotating wheel is waved. Through the adoption of the special tool disclosed by the invention,the problems that a plane of a web plate of a blank is uneven caused by deep stretching, then the splitting of the upper side and the lower side of the T-shaped deep stretching type plate spinning belt wheel is not uniform, the web plate losses stability, and the tank shape is unformed are solved, the production efficiency is high, the processing time is short, and the product quality is stable.

Description

technical field [0001] The invention relates to a production process of an inner plate pulley of an automobile engine, in particular to a production process of a T-shaped deep-drawn plate spinning pulley and a forming pulley used in the process. Background technique [0002] At present, the T-shaped plate spinning pulley of the automobile engine mainly adopts the shape structure without stretching or shallow stretching, and the T-shaped pulley with the deep-drawing shape structure can mostly be realized by traditional casting and machining processes, but the weight of the cast pulley Large, large moment of inertia, and high mass production costs are important reasons that hinder the realization of lightweight vehicles. [0003] The weight of the plate spinning pulley is generally only 1 / 2 of the cast pulley steel. At present, the plate spinning pulley is widely used in automobiles to reduce the weight of the whole vehicle, which is also the general trend of automobile develo...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides a method that solves the problems of uneven web plane caused by deep drawing, uneven distribution of materials on the upper and lower sides during the spinning process, loss of stability of the web, and unshaped grooves. , reducing the annealing heat treatment and turning tooth profile process, effectively ensuring the product quality of the special tooling for the spinning process of the T-shaped deep-drawing plate spinning pulley

If the diameter of the bottom surface of the upper forming cylinder is equal to or smaller than that of the bottom forming cylinder, it will cause more material on the upper side of the web, and eventually the tooth shape of the product cannot meet the predetermined requirements; the second preforming rotary wheel is a flat wheel, and the second The forming surface of the second preforming rotary wheel is a wavy cylindrical surface, and the forming surface of the second preforming rotary wheel is wavy, which can control the speed, flow volume and flow direction of the material flowing up and down, and the ultimate goal is to solve the problem of uniform material flow; The forming surface of the preliminary forming rotary wheel is a shallow groove type, and the depth of the shallow groove type is smaller than the final groove shape required by the product; the forming surface of the finishing rotary wheel is a deep groove type, and the shape and size of the deep groove shape are the same as the final groove shape required by the product shape correspondence

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