阅读说明：本技术 一种扭力梁纵臂定位结构 (Torsion beam longitudinal arm positioning structure ) 是由 姚上前 胡拥军 于 2019-12-13 设计创作，主要内容包括：本发明提供一种扭力梁纵臂定位结构,包括横梁,横梁左侧设有左纵臂,横梁右侧设有右纵臂,所述左纵臂后端设有车身安装衬套,左纵臂后端下侧设有定位面,定位面中间设有定位孔,左纵臂前端设有制动法兰,左纵臂前端下侧设有减振器安装支架,左纵臂前端内侧与横梁之间设有弹簧托盘支架,左纵臂和右纵臂结构相同并且对称设置。通过在左纵臂和右纵臂上增加定位面和定位孔,提高精确度,满足加工需求。(The invention provides a torsion beam longitudinal arm positioning structure which comprises a cross beam, wherein a left longitudinal arm is arranged on the left side of the cross beam, a right longitudinal arm is arranged on the right side of the cross beam, a vehicle body mounting bushing is arranged at the rear end of the left longitudinal arm, a positioning surface is arranged on the lower side of the rear end of the left longitudinal arm, a positioning hole is formed in the middle of the positioning surface, a brake flange is arranged at the front end of the left longitudinal arm, a shock absorber mounting support is arranged on the lower side of the front end of the left longitudinal arm, a spring tray support is arranged between the inner side of the front end of the left longitudinal arm and the cross. Through increase locating surface and locating hole on left trailing arm and right trailing arm, improve the accuracy, satisfy the processing demand.)

1. The utility model provides a torsion beam trailing arm location structure, includes crossbeam (1), its characterized in that: crossbeam (1) left side is equipped with left trailing arm (2), and crossbeam (1) right side is equipped with right trailing arm (3), left side trailing arm (2) rear end is equipped with automobile body installation bush (4), and left side trailing arm (2) rear end downside is equipped with locating surface (5), is equipped with locating hole (6) in the middle of locating surface (5), and left side trailing arm (2) front end is equipped with braking flange (7), and left side trailing arm (2) front end downside is equipped with shock absorber installing support (8), is equipped with spring tray support (9) between left side trailing arm (2) front end inboard and crossbeam (1), and left side trailing arm (2) and right trailing arm (3) structure are the same and the symmetry sets up.

2. The torsion beam trailing arm positioning structure according to claim 1, wherein: the joint of the front end of the left longitudinal arm (2) and the cross beam (1) is provided with a left reinforcing plate (10), and the joint of the front end of the right longitudinal arm (3) and the cross beam (1) is provided with a right reinforcing plate (11).

3. The torsion beam trailing arm positioning structure according to claim 1, wherein: the positioning surface (5) is in a long-strip oval shape, and the positioning hole (6) is in a circular shape.

4. The torsion beam trailing arm positioning structure according to claim 1, wherein: the left longitudinal arm (2) and the right longitudinal arm (3) are welded into a whole respectively, and the left longitudinal arm (2), the right longitudinal arm (3) and the cross beam (1) are welded into a whole.

Technical Field

The invention relates to the field of automobile parts, in particular to a torsion beam longitudinal arm positioning structure.

Background

The torsion beam is a main part of an automobile chassis suspension system, generally comprises a torsion beam welding assembly and 2 automobile body mounting bushings, wherein one end of the torsion beam is connected with an automobile body bracket, and the other end of the torsion beam is connected with a brake disc, so that the assembly size of the whole automobile is influenced, and the torsion beam has a direct relation to the toe-in/camber angle of the whole automobile. At present, the main process of the left/right trailing arm comprises the following steps: stamping or bending molding, wherein in the processing process, process positioning holes and surfaces are not formed, so that the process precision consistency cannot be ensured; meanwhile, the left and right trailing arms can be hydroformed to ensure the product precision, the equipment investment is large, and the processing cost is higher than that of the common processing technology; it becomes important to solve this problem.

Disclosure of Invention

The invention aims to provide a torsion beam longitudinal arm positioning structure, which improves the accuracy by adding positioning surfaces and positioning holes on a left longitudinal arm and a right longitudinal arm, so that the positioning is more accurate and the processing is convenient.

The invention provides a torsion beam longitudinal arm positioning structure which comprises a cross beam, wherein a left longitudinal arm is arranged on the left side of the cross beam, a right longitudinal arm is arranged on the right side of the cross beam, a vehicle body mounting bushing is arranged at the rear end of the left longitudinal arm, a positioning surface is arranged on the lower side of the rear end of the left longitudinal arm, a positioning hole is formed in the middle of the positioning surface, a brake flange is arranged at the front end of the left longitudinal arm, a shock absorber mounting support is arranged on the lower side of the front end of the left longitudinal arm, a spring tray support is arranged between the inner side of the front end of the left longitudinal arm and the cross.

The further improvement lies in that: the left reinforcing plate is arranged at the joint of the front end of the left longitudinal arm and the cross beam, and the right reinforcing plate is arranged at the joint of the front end of the right longitudinal arm and the cross beam.

The further improvement lies in that: the locating surface is a long-strip oval shape, and the locating hole is circular.

The further improvement lies in that: the left longitudinal arm and the right longitudinal arm are welded into a whole, and the left longitudinal arm, the right longitudinal arm and the cross beam are welded into a whole.

The invention has the beneficial effects that: through increasing locating surface and locating hole on left trailing arm and right trailing arm, on the basis that satisfies the singleton and detect, can realize left trailing arm and right trailing arm positioning accuracy, realize turning round the precision of roof beam welding assembly, improve batch production's uniformity and qualification rate, reduce about the not satisfied condition of trailing arm precision, the disposable qualification rate of assembly reduces whole car assembly uniformity.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic view of the left trailing arm.

FIG. 3 is a schematic view of the underside of the left trailing arm

Wherein: the method comprises the following steps of 1-a cross beam, 2-a left trailing arm, 3-a right trailing arm, 4-a vehicle body mounting bushing, 5-a positioning surface, 6-a positioning hole, 7-a brake flange, 8-a shock absorber mounting bracket, 9-a spring tray bracket, 10-a left reinforcing plate and 11-a right reinforcing plate.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-3, this embodiment provides a torsion beam longitudinal arm positioning structure, including crossbeam 1, crossbeam 1 left side is equipped with left longitudinal arm 2, crossbeam 1 right side is equipped with right longitudinal arm 3, 2 rear ends in left side longitudinal arm are equipped with automobile body installation bush 4, 2 rear end downside in left side longitudinal arm are equipped with locating surface 5, be equipped with locating hole 6 in the middle of locating surface 5, 2 front ends in left side longitudinal arm are equipped with braking flange 7, 2 front end downside in left side longitudinal arm are equipped with shock absorber installing support 8, be equipped with spring tray support 9 between 2 front end inboards in left side longitudinal arm and crossbeam 1, left longitudinal arm 2 and right longitudinal arm 3 the same and symmetry setting of structure. The joint of the front end of the left longitudinal arm 2 and the cross beam 1 is provided with a left reinforcing plate 10, and the joint of the front end of the right longitudinal arm 3 and the cross beam 1 is provided with a right reinforcing plate 11. The positioning surface 5 is in a long-strip oval shape, and the positioning hole 6 is in a circular shape. The left trailing arm 2 and the right trailing arm 3 are respectively welded into a whole, and the left trailing arm 2, the right trailing arm 3 and the cross beam 1 are welded into a whole.

Through increasing locating surface 5 and locating hole 6 on left trailing arm 2 and right trailing arm 3, on the basis that satisfies the singleton and detect, can realize left trailing arm 2 and 3 positioning accuracy of right trailing arm, realize turning round the precision of roof beam welding assembly, improve batch production's uniformity and qualification rate, under the unsatisfactory condition of trailing arm precision about the reduction, the assembly is disposable qualification rate, reduces whole car assembly uniformity.