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Balance weight in steel for wheels of automobiles, and fabricating technique.

The invention relates to a manufacturing process and a technology of a balance weight, which is applied to the field of steel automobile wheel balance weight and its manufacturing process, and can solve the problems of dissolved lead, high raw material cost of the wheel balance weight, harm to human body and environment, etc., and achieves reduction of punching force, The effect of preventing punch breakage and prolonging die life

Inactive Publication Date: 2006-12-06
XINMINGYUAN AUTOMOBILE FITTINGS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material cost of automobile wheel balance weights made of alloys such as zinc or lead is relatively high, especially after the automobile is scrapped, the balance weights on th

Method used

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  • Balance weight in steel for wheels of automobiles, and fabricating technique.
  • Balance weight in steel for wheels of automobiles, and fabricating technique.

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Example 1 Manufacturing process

[0030] First punch blanking on the rectangular strip, turn the blanked blank 90 degrees to punch out grooves, and then bend according to the curvature radius of the balance weight part to form the outline of the balance weight. Punch half holes (blind holes) after high-frequency induction heating to form raised rivets. Finally, the formed balance weight and the spring pendant are riveted and fixed.

example 2

[0031] Example 2 Comparison of Technical Effects

[0032] (1) Compared with the automobile wheel balance weight formed by die-casting of non-ferrous metals such as zinc or lead, it has the advantages of low raw material cost and no harm to human body and environment.

[0033] (2) Compared with the automobile wheel balance weight formed by die-casting of non-ferrous metals such as zinc or lead, the efficiency of the stamping forming technology of the steel balance weight is 50-100% higher.

[0034] (3) Compared with the automobile wheel balance weight formed by die-casting non-ferrous metals such as zinc or lead, the equipment investment and mold cost required for the stamping forming technology of the steel balance weight are lower.

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PUM

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Abstract

The present invention belongs to the field of car wheel balance weight technology, in the concrete, it relates to a steel car wheel balance weight, and its production process. It is characterized by that on the balance weight at least one projection is set, on another end face of said balance weight and in the place correspondent to said projection a semihole is set, the spring hanger-piece can be connected and fixed with said balance weight by means of said projection. Its production process includes the following steps: (1) blanking; (2), stamping recessed groove; (3), bending; (4), high-frequency induction heating; (5), punching and forming; (6), cutting edge; and (7), connecting the spring hanger-piece with balance weight and making them be fixed.

Description

[technical field] [0001] The invention relates to the technical field of automobile wheel counterweights, in particular to a steel automobile wheel balance weight and a manufacturing process thereof. [Background technique] [0002] In the manufacturing process of automobile wheels, due to factors such as processing technology and materials, it is impossible to ensure absolute concentricity between the shaft and the hub, and there is a certain eccentricity. When the car maintains a speed of 70-80 kilometers per hour, it will cause severe bumps in the car, which will affect the performance and safety of the car. Therefore, the wheels must be checked for dynamic balance before installation. According to the results of the check for dynamic balance, one to several balance weights of different weights must be installed on each wheel. [0003] At present, the balance weights of automobile wheels are basically formed by die-casting non-ferrous metals, such as zinc or lead alloys. ...

Claims

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Application Information

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IPC IPC(8): F16F15/28
Inventor 钱嘉明
Owner XINMINGYUAN AUTOMOBILE FITTINGS SHANGHAI