Hub bearing flange plate multi-station precision forming technology and implement device thereof

A wheel bearing and precision forming technology, applied in forging/pressing/hammer devices, wheels, manufacturing tools, etc., can solve the problems of fast heat loss, low product precision, and more waste materials, so as to improve material utilization and increase size Accuracy, the effect of avoiding material waste

Inactive Publication Date: 2019-05-14
JIANGSU SUNWAY PRECISION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at using the open multi-station hot die forging technology in the existing hub bearing flange forming process, which tends to cause rapid heat loss in the production process, resulting in unqualified product hardness, and fails to improve the product waste and low product precision. The problem is to propose a multi-station precision forming process for wheel hub bearing flanges and its implementation device. Through multi-station forming, the plastic forming process of the billet is optimized for material distribution. Process design and the addition of nitrogen spring pressure combined with ejector design technology solve the problems of low precision and waste in the forming process

Method used

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  • Hub bearing flange plate multi-station precision forming technology and implement device thereof
  • Hub bearing flange plate multi-station precision forming technology and implement device thereof
  • Hub bearing flange plate multi-station precision forming technology and implement device thereof

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Embodiment Construction

[0019] Such as figure 1 As shown, this embodiment includes five stations of upsetting unit a, forward extruding rod unit b, composite extrusion unit c, forming unit d, and punching unit e, which are processed independently in sequence, wherein:

[0020] The upsetting refers to: under the action of the upper and lower dies of the upsetting unit, the height of the product is deformed and reduced, and the final goal is to enlarge the diameter of the unit product to within 0.5 mm to 1 mm smaller than the diameter of the forward extrusion unit, and through upsetting The process realizes the effect of removing oxide skin on the surface of the product after heating.

[0021] The forward extruded rod part refers to: under the action of the upper die and the lower die of the forward extruded rod unit, the upset product is formed into a small diameter rod part through extrusion, so as to realize the material distribution of the product on the rod part.

[0022] The composite extrusion ...

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Abstract

The invention discloses a hub bearing flange plate multi-station precision forming technology and an implement device thereof. A blank is sequentially subjected to independent technologies including cutting blanking, upsetting, rod part forward extrusion, combined extrusion, forming and punching through a multi-station forming mold, and the optimizing forming of hub bearing flange plates is realized. According to the hub bearing flange plate multi-station precision forming technology and the implement device thereof, the blank plastic forming process is subjected to optimizing material allotment through the multi-station forming, and on the basis, upper mold and lower mold guide structural design, closed type forming technology design and a design technology combining nitrogen spring pressing with ejection are added, and the problems of low precision and many waste materials in the forming process are solved.

Description

technical field [0001] The invention relates to a technology in the field of metal hot forming, in particular to a multi-station precision forming process of a hub bearing flange forging and a device for realizing it. Background technique [0002] The key parts of the hub bearing are important components in the chassis of the car, and the flange of the hub bearing belongs to the more important category of the key parts of the hub bearing. The traditional hub bearing flange production uses a single-station open hot die forging process. The process of directly forming raw materials has obvious disadvantages, such as: more waste, poor product flow, and low product precision. Therefore, how to optimize the forming process and mold design is an urgent problem to be solved. [0003] At present, for the wheel bearing flange forming process and mold design, the open multi-station (multiple equipment connection) hot die forging process is used. This process improves the product flow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/00B21J5/02B21J13/02B21J13/04B21J13/08B21J13/14B21K1/32
Inventor 施卫兵龚爱军管仁蔚施雷磊胡成亮
Owner JIANGSU SUNWAY PRECISION FORGING
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