阅读说明：本技术 一种复合式扭力梁纵臂结构 (Combined type torsion beam longitudinal arm structure ) 是由 刁先军 程明强 钟华山 于 2021-07-20 设计创作，主要内容包括：本发明涉及扭力梁式悬架集成领域,具体是一种复合式扭力梁纵臂结构,包括冲压成型的纵臂外板、纵臂内板,所述的纵臂外板、纵臂内板外表面上均设置有利于后续总成焊接定位的定位孔,纵臂由一体式管件改为纵臂外板、纵臂内板分别冲压成型,再焊接复合的形式,可通过简单U-O成型实现,成型工艺简单,设计自由度大,在冲压表面本体设计定位孔面特征,有利于后续总成焊接定位、尺寸更稳定；具有减震器安装点的内外板形式的纵臂本体,省去了独立减震器支架的冲压和焊接工序,质量更稳定、成本更低、生产效率更高。(The invention relates to the field of torsion beam type suspension integration, in particular to a composite torsion beam longitudinal arm structure which comprises a longitudinal arm outer plate and a longitudinal arm inner plate which are subjected to punch forming, wherein positioning holes which are beneficial to subsequent assembly welding positioning are formed in the outer surfaces of the longitudinal arm outer plate and the longitudinal arm inner plate; the inner plate and the outer plate of the longitudinal arm body with the shock absorber mounting points save the stamping and welding processes of the independent shock absorber support, and are more stable in quality, lower in cost and higher in production efficiency.)

1. The utility model provides a combined type torsion beam longitudinal wall structure which characterized in that: the welding positioning device comprises a longitudinal arm outer plate (1) and a longitudinal arm inner plate (2) which are formed by punching, wherein positioning holes (3) which are favorable for the welding positioning of subsequent assemblies are formed in the outer surfaces of the longitudinal arm outer plate (1) and the longitudinal arm inner plate (2).

2. The composite torsion beam trailing arm structure according to claim 1, wherein: the outer longitudinal arm plate (1) and the inner longitudinal arm plate (2) are integrally stamped and formed by U-O forming.

3. The composite torsion beam trailing arm structure according to claim 1, wherein: the outer longitudinal arm plate (1) and the inner longitudinal arm plate (2) are compounded through welding, and one end of the outer longitudinal arm plate and the inner longitudinal arm plate are integrated with a shock absorber mounting point.

Technical Field

The invention relates to the field of torsion beam type suspension integration, in particular to a composite torsion beam longitudinal arm structure.

Background

As one of rear suspension types of automobiles, a torsion beam type suspension is also called a torsion beam type dependent suspension, wherein two ends of a torsion beam are connected with left and right wheels, and the up-and-down jumping of the left and right wheels is balanced through certain torsion rigidity of the torsion beam, so that the stability of the automobile is improved. The automobile is a great development trend of light weight and low cost, and the design concept of light weight, low cost, high efficiency and more stable quality should be embodied on the structural design and the manufacturing mode of the torsion beam product.

The torsion beam type suspension is needed to optimize the torsion beam longitudinal arm structure on the basis of fully considering the product performance, the function and the processing technology, and achieve the purposes of reducing weight, improving quality stability and reducing the manufacturing cost of parts.

Disclosure of Invention

In order to solve the above problems, the present invention provides a composite torsion beam trailing arm structure.

The utility model provides a combined type torsion beam longitudinal wall structure, includes stamping forming's trailing arm planking, trailing arm inner panel, trailing arm planking, trailing arm inner panel surface on all set up the locating hole that is favorable to follow-up assembly welding position.

The outer plate and the inner plate of the longitudinal arm are integrally stamped and formed by U-O forming.

The outer plate and the inner plate of the longitudinal arm are compounded by welding, and one end of the outer plate and the inner plate is integrated with a mounting point of a shock absorber.

The invention has the beneficial effects that: the longitudinal arm is changed into a mode that an integrated pipe fitting is changed into a mode that a longitudinal arm outer plate and a longitudinal arm inner plate are respectively punched and formed, and then welding and compounding are carried out, the forming can be realized through simple U-O forming, the forming process is simple, the design freedom degree is large, the positioning hole surface characteristics are designed on the stamping surface body, the welding and positioning of a subsequent assembly are facilitated, and the size is more stable; the inner plate and the outer plate of the longitudinal arm body with the shock absorber mounting points save the stamping and welding processes of the independent shock absorber support, and are more stable in quality, lower in cost and higher in production efficiency.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic perspective view of a prior art split trailing arm according to the present invention;

FIG. 2 is a perspective view of a prior art split trailing arm assembly of the present invention;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic assembled perspective view of the present invention;

FIG. 5 is a schematic perspective view of the trailing arm outer plate according to the present invention;

FIG. 6 is a schematic perspective view of the inner plate of the trailing arm according to the present invention;

fig. 7 is a schematic perspective view of a positioning hole according to the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.

As shown in fig. 1 to 7, a composite torsion beam trailing arm structure includes a stamped outer trailing arm plate 1 and an inner trailing arm plate 2, and positioning holes 3 beneficial to subsequent assembly welding positioning are respectively arranged on the outer surfaces of the outer trailing arm plate 1 and the inner trailing arm plate 2.

The longitudinal arm is changed into a mode that an integral pipe fitting is used for stamping and forming the outer plate 1 and the inner plate 2 of the longitudinal arm respectively, and then welding and compounding are carried out, the forming can be realized through simple U-O forming, the forming process is simple, the design freedom degree is large, 3-surface characteristics of a positioning hole are designed on the stamping surface body, the welding and positioning of a subsequent assembly are facilitated, and the size is more stable; the inner plate and the outer plate of the longitudinal arm body with the shock absorber mounting points save the stamping and welding processes of the independent shock absorber support, and are more stable in quality, lower in cost and higher in production efficiency.

As shown in fig. 1, reference numeral a is a shock absorber support, and reference numeral b is a tubular trailing arm.

The outer longitudinal arm plate 1 and the inner longitudinal arm plate 2 are integrally formed by punching inner plates and outer plates and are formed by U-O forming.

Compare in current pipe fitting trailing arm body and bumper shock absorber support combination welded structural style, current trailing arm body and bumper shock absorber support combined type structure have that the structure is simpler, the performance is more superior, machining efficiency is high, the quality is more stable, the advantage that the cost is lower.

The outer plate 1 and the inner plate 2 of the longitudinal arm are compounded by welding, and one end of the outer plate and one end of the inner plate are integrated with a mounting point of a shock absorber.

The existing rear torsion beam generally adopts a separated type assembling and welding structure of a tubular longitudinal arm body and a shock absorber support, the forming process of the longitudinal arm body with the structure is complex, welding procedures with the shock absorber are added, the cost is high, and the quality is unstable.

The invention mainly solves the problems that the structure commonly adopted at present is optimized into a general stamping structure with simple forming process, meanwhile, the mounting point of the shock absorber and the longitudinal arm structure are combined into a whole, the stamping and welding process of the shock absorber support is omitted, the longitudinal arm body of the structure is a pipe fitting, the design freedom degree is limited, the positioning is realized through the characteristics of the positioning hole 3, and the forming process is simple.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.