A Forming Method of Negative Angle in Semicircle Area of ​​Automobile Control Arm

An automobile control arm and semi-circle technology, applied in the field of automobiles, can solve the problems of high maintenance and manufacturing costs, reduce the thickness of the control arm material, increase the control arm, etc., achieve convenient processing, avoid complex forming flanging, and reduce manufacturing costs Effect

CN107116142BActive Publication Date: 2019-04-23上海汇众汽车车桥系统有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-04-23

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Abstract

The invention relates to the field of automobiles and particularly provides a forming die and a forming method of an automobile control arm semicircle area negative corner. The forming die comprises a first die body, a second die body and a third die body; and the forming die is characterized in that the first die body is composed of a first die material-pressing plate, a first die flanging insert and a first die lower die body, the first die material-pressing plate is arranged above the first die lower die body, the position, located on the right side of the first die material-pressing plate, of the first die lower die body is provided with the first die flanging insert, and the bottom of the right side of the first die flanging insert is exposed out of the right side of the first die lower die body. Compared with the prior art, machining is convenient, and the light weight target of a control arm with a negative corner structure is achieved; and complex forming and flanging can be effectively avoided, and the production and manufacturing cost is lowered.
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Description

technical field

[0001] The invention relates to the field of automobiles, in particular to a method for forming a negative angle in a semicircle area of ​​an automobile control arm. Background technique

[0002] Conventional car control arms are straight flanged in the semicircle area, without negative angles. With the requirements for strength, stiffness and weight of the product, and limited by the space between the control arm and the brake disc, the semicircle area of ​​part of the control arm is currently designed with a negative angle. This structure with a negative angle increases the control arm The strength and rigidity of the control arm reduce the material thickness of the control arm and realize the lightweight goal of the control arm, which will be widely used. However, due to the limited opening space in the negative angle area, it is difficult to return the material. If the traditional wedge structure is used to develop , the strength of the mold is difficult...

Examples

Embodiment Construction

[0017] The present invention will be further described below according to the accompanying drawings.

[0018] Such as figure 1 As shown, the first mold is composed of the first mold blanking plate 1, the first mold flanging insert 2 and the first mold lower mold 3, and the first mold pressing plate is arranged above the first mold lower mold 3. The material plate 1, the first mold lower mold 3 located on the right side of the first mold pressing plate 1 is provided with a first mold flanging insert 2, and the right bottom of the first mold flanging insert 2 is exposed on the second The outside of the right side of the lower die 3 of a mold.

[0019] Such as figure 2 As shown, the second mold is composed of the second mold blanking plate 4, the second mold flanging insert 5 and the second mold lower mold 6, and the second mold pressing plate is arranged above the second mold lower mold 6. The material plate 4, the second mold flanging insert 5 is arranged on the right side ...