Butt welding type suspension control arm

Abstract

The utility model relates to a butt welding type suspension control arm which comprises a first arm body and a second arm body, the cross section of the first arm body is in an inverted U shape, the cross section of the second arm body is in a U shape, and the end portions of two vertical portions of the second arm body extend outwards to respectively form a limiting portion. A limiting step matched with the vertical portion of the first arm body is formed on the limiting portion, when the first arm body and the second arm body are spliced and welded, the vertical portion of the first arm body is arranged on the limiting step, and the limiting portion is attached to the outer side face of the vertical portion of the first arm body. According to the butt welding type suspension control arm, the positioning difficulty in the splicing welding process is reduced, and therefore the yield of the control arm formed through welding is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a butt-welded suspension control arm. Background Art

[0002] The suspension control arm is a guide and force transmission part of the automobile suspension system, which transmits the force and torque acting on the wheel to the body, while ensuring that the wheel moves along a certain trajectory. In the prior art, in order to strengthen the strength of the control arm and reduce the mass of the control arm, there have appeared, for example, a utility model patent: a butt-welded double-layer suspension control arm (application number: 202221853018.2) disclosed a suspension control arm formed by welding two control arm plates. However, in the structure of the above-mentioned control arm, when welding the two control arm plates, the two control arm plates need to be aligned and positioned before welding, resulting in high requirements for the accuracy of the tooling and fixtures and the operating experience of the workers during welding, thereby increasing the probability of defective products during production.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a butt-welded suspension control arm, which solves the above-mentioned problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A butt-welded suspension control arm comprises a first arm body and a second arm body, wherein the cross-section of the first arm body is an inverted U-shape, the cross-section of the second arm body is a U-shape, and the two vertical ends of the second arm body extend outwardly to each form a limiting portion, and a limiting step matching the vertical portion of the first arm body is formed on the limiting portion. When the first arm body and the second arm body are assembled and welded, the vertical portion of the first arm body is placed on the limiting step, and the limiting portion is attached to the outer surface of the vertical portion of the first arm body.

[0007] Preferably, a first mounting plate and a second mounting plate are respectively formed on the outer sides of the middle parts of the first arm body and the second arm body, and a plurality of first mounting holes and a second mounting holes are respectively opened on the first mounting plate and the second mounting plate. When the first arm body and the second arm body are spliced ​​and welded, the first mounting plate and the second mounting plate are spliced ​​and welded, and the first mounting hole is aligned with the second mounting hole.

[0008] Preferably, the cross-sections of the first mounting plate and the second mounting plate are respectively inverted U-shaped and U-shaped, and the limiting portion extends to the end of the vertical portion of the second mounting plate. When the first mounting plate and the second mounting plate are assembled and welded, the vertical portion of the first mounting plate is placed on the limiting step, and the limiting portion is attached to the outer surface of the vertical portion of the first mounting plate.

[0009] Preferably, a semi-cylindrical first bushing half-cylinder is formed at each end of the first arm body, and a semi-cylindrical second bushing half-cylinder is formed at each end of the second arm body. When the first arm body and the second arm body are spliced ​​and welded, the first bushing half-cylinder and the second bushing half-cylinder are spliced ​​and welded to form a bushing tube.

[0010] Preferably, a first plug-in portion is formed at the side end of the first bushing half-cylinder away from the first arm body, and a second plug-in portion is formed at the side end of the second bushing half-cylinder away from the second arm body. The second plug-in portion is provided with a plug-in groove matching the first plug-in portion, and when the first bushing half-cylinder and the second bushing half-cylinder are assembled and welded, the first plug-in portion is inserted into the plug-in groove.

[0011] Preferably, a first limiting half ring and a second limiting half ring are formed on the inner ends of the first bushing half cylinder and the second bushing half cylinder respectively. When the first bushing half cylinder and the second bushing are assembled and welded, the first limiting half ring and the second limiting half ring are assembled to form a limiting ring. A bushing adjustment cylinder with an end welded to the limiting ring is inserted into the bushing cylinder, and a connecting ring welded to the outer ends of the first bushing half cylinder and the second bushing half cylinder is formed on the other end of the bushing adjustment cylinder.

[0012] Preferably, a first reinforcement protrusion and a second reinforcement protrusion are formed on the transverse flat portions of the first arm body and the second arm body, respectively.

[0013] To sum up, the beneficial effect of the utility model is that: through the limiting effect of the limiting part on the first arm body, the positioning operation of the first arm body and the second arm body is facilitated, and the difficulty of operation when the first arm body and the second arm body are spliced ​​and welded is reduced, thereby improving the yield rate of the control arm formed by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of a cutaway of the utility model;

[0018] Figure 4 It is a cross-sectional schematic diagram of another direction of the utility model;

[0019] Figure 5 It is a partial enlarged schematic diagram of the first arm body in the utility model;

[0020] Figure 6 It is a partial enlarged schematic diagram of the second arm body in the utility model.

[0021] In the figure: 1. first arm body; 13. first mounting plate; 14. first mounting hole; 15. first bushing half-cylinder; 16. first plug-in portion; 17. first limiting half-ring; 18. first reinforcing protrusion; 2. second arm body; 21. limiting portion; 22. limiting step; 23. second mounting plate; 24. second mounting hole; 25. second bushing half-cylinder; 26. second plug-in portion; 261. plug-in groove; 27. second limiting half-ring; 28. second reinforcing protrusion; 3. bushing adjustment cylinder; 31. connecting ring. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As shown in the figure, a butt-welded suspension control arm includes a first arm body 1 and a second arm body 2, wherein the cross-section of the first arm body 1 is an inverted U-shape, the cross-section of the second arm body 2 is a U-shape, and the two vertical ends of the second arm body 2 extend outward to each form a limiting portion 21, and a limiting step 22 matching the vertical portion of the first arm body 1 is formed on the limiting portion 21. When the first arm body 1 and the second arm body 2 are assembled and welded, the vertical portion of the first arm body 1 is placed on the limiting step 22, and the limiting portion 21 is attached to the outer surface of the vertical portion of the first arm body 1.

[0024] Specifically, a first mounting plate 13 and a second mounting plate 23 are respectively formed on the outer sides of the middle parts of the first arm body 1 and the second arm body 2, and a plurality of first mounting holes 14 and second mounting holes 24 are respectively opened on the first mounting plate 13 and the second mounting plate 23. When the first arm body 1 and the second arm body 2 are assembled and welded, the first mounting plate 13 and the second mounting plate 23 are assembled and welded, and the first mounting holes 14 and the second mounting holes 24 are aligned.

[0025] Specifically, the cross-sections of the first mounting plate 13 and the second mounting plate 23 are respectively inverted U-shaped and U-shaped, and the limiting portion 21 extends to the end of the vertical portion of the second mounting plate 23. When the first mounting plate 13 and the second mounting plate 23 are assembled and welded, the vertical portion of the first mounting plate 13 is placed on the limiting step 22, and the limiting portion 21 is attached to the outer surface of the vertical portion of the first mounting plate 13.

[0026] Specifically, a semi-cylindrical first bushing half-cylinder 15 is formed at each end of the first arm body 1, and a semi-cylindrical second bushing half-cylinder 25 is formed at each end of the second arm body 2. When the first arm body 1 and the second arm body 2 are welded together, the first bushing half-cylinder 15 and the second bushing half-cylinder 25 are welded together to form a bushing.

[0027] Specifically, a first plug-in portion 16 is formed at the side end of the first bushing half-cylinder 15 away from the first arm body 1, and a second plug-in portion 26 is formed at the side end of the second bushing half-cylinder 25 away from the second arm body 2. The second plug-in portion 26 is provided with a plug-in groove 261 matching the first plug-in portion 16. When the first bushing half-cylinder 15 and the second bushing half-cylinder 25 are assembled and welded, the first plug-in portion 16 is inserted into the plug-in groove 261.

[0028] In the above embodiment, the first arm body 1 and the second arm body 2 are welded together to form the control arm body, and the weld between the two is located between the limiting portion 21 and the vertical portion of the first arm body 1. The first mounting plate 13 and the second mounting plate 23 are welded together to install the suspension ball head, and the weld between the two is located between the limiting portion 21 and the vertical portion of the first mounting plate 13. The bushing formed by the welding of the first bushing half-tube 15 and the second bushing half-tube 25 is also used to install the bushing, and the weld between the two is located between the first plug-in portion 16 and the second plug-in portion 26. When the above structure is welded together, the vertical portion of the first arm body 1 is placed on the limiting step 22 and the limiting portion 21 is attached to the outer surface of the vertical portion of the first arm body 1, so that the limiting portion 21 plays a positioning role for the first arm body 1. , and plays a positioning role in the splicing of the first arm body 1 and the second arm body 2, which is convenient for the positioning operation when the first arm body 1 and the second arm body 2 are spliced ​​and welded, reduces the difficulty of workers' operation, and thus improves the yield rate of the control arm formed by welding. When positioning the first arm body 1 and the second arm body 2, by inserting the first plug-in portion 16 into the plug-in groove 261, and inserting fastening bolts into the first mounting hole 14 and the second mounting hole 24, the first arm body 1 and the second arm body 2 can be fixed in cooperation with the limiting portion 21 without the need to use additional tooling and clamps, thereby further facilitating the positioning operation when the first arm body 1 and the second arm body 2 are spliced ​​and welded, further reducing the difficulty of workers' operation, and further improving the yield rate of the control arm formed by welding.

[0029] Furthermore, a first limiting half ring 17 and a second limiting half ring 27 are respectively formed on the inner ends of the first bushing half cylinder 15 and the second bushing half cylinder 25. When the first bushing half cylinder and the second bushing are assembled and welded, the first limiting half ring 17 and the second limiting half ring 27 are assembled to form a limiting ring. A bushing adjustment cylinder 3 whose end is welded to the limiting ring is inserted into the bushing cylinder, and a connecting ring 31 welded to the outer ends of the first bushing half cylinder 15 and the second bushing half cylinder 25 is formed on the other end of the bushing adjustment cylinder 3.

[0030] In the above preferred embodiment, the bushing adjustment tube 3 welded in the bushing tube is used to install the bushing. Its function is that when producing the control arm, the bushing adjustment tube 3 with different inner diameters can be selected according to the bushings with different outer diameters matched by the control arm and welded in the bushing tube without changing the control arm as a whole, thereby reducing the production cost and improving the economic benefits.

[0031] Preferably, in order to enhance the strength of the first arm body 1 and the second arm body 2 , a first reinforcing protrusion 18 and a second reinforcing protrusion 28 are formed on the horizontal flat portions of the first arm body 1 and the second arm body 2 , respectively.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A butt-welded suspension control arm, comprising a first arm body (1) and a second arm body (2), characterized in that: The cross section of the first arm body (1) is inverted U-shaped, the cross section of the second arm body (2) is U-shaped, and the two vertical ends of the second arm body (2) extend outwards to form a limiting portion (21), and the limiting portion (21) is formed with a limiting step (22) matching the vertical portion of the first arm body (1). When the first arm body (1) and the second arm body (2) are assembled and welded, the vertical portion of the first arm body (1) is placed on the limiting step (22), and the limiting portion (21) is attached to the outer surface of the vertical portion of the first arm body (1).

2. The butt-welded suspension control arm according to claim 1, characterized in that: A first mounting plate (13) and a second mounting plate (23) are respectively formed on the outer sides of the middle parts of the first arm body (1) and the second arm body (2); a plurality of first mounting holes (14) and a second mounting hole (24) are respectively opened on the first mounting plate (13) and the second mounting plate (23); when the first arm body (1) and the second arm body (2) are welded together, the first mounting plate (13) and the second mounting plate (23) are welded together, and the first mounting holes (14) and the second mounting holes (24) are aligned.

3. The butt-welded suspension control arm according to claim 2, characterized in that: The cross-sections of the first mounting plate (13) and the second mounting plate (23) are respectively in an inverted U-shape and a U-shape, the limiting portion (21) extends to the end of the vertical portion of the second mounting plate (23), and when the first mounting plate (13) and the second mounting plate (23) are assembled and welded, the vertical portion of the first mounting plate (13) is placed on the limiting step (22), and the limiting portion (21) is attached to the outer surface of the vertical portion of the first mounting plate (13).

4. The butt-welded suspension control arm according to claim 2, characterized in that: A semi-cylindrical first bushing half-tube (15) is formed at each end of the first arm body (1), and a semi-cylindrical second bushing half-tube (25) is formed at each end of the second arm body (2). When the first arm body (1) and the second arm body (2) are welded together, the first bushing half-tube (15) and the second bushing half-tube (25) are welded together to form a bushing tube.

5. The butt-welded suspension control arm according to claim 4, characterized in that: A first plug-in portion (16) is formed at a side end of the first bushing half-cylinder (15) away from the first arm body (1), and a second plug-in portion (26) is formed at a side end of the second bushing half-cylinder (25) away from the second arm body (2). The second plug-in portion (26) is provided with a plug-in groove (261) matching the first plug-in portion (16). When the first bushing half-cylinder (15) and the second bushing half-cylinder (25) are assembled and welded, the first plug-in portion (16) is inserted into the plug-in groove (261).

6. The butt-welded suspension control arm according to claim 5, characterized in that: A first limiting half ring (17) and a second limiting half ring (27) are respectively formed on the inner ends of the first bushing half cylinder (15) and the second bushing half cylinder (25). When the first bushing half cylinder and the second bushing are welded together, the first limiting half ring (17) and the second limiting half ring (27) are assembled to form a limiting ring. A bushing adjustment cylinder (3) having an end welded to the limiting ring is inserted into the bushing cylinder. A connecting ring (31) is formed on the other end of the bushing adjustment cylinder (3) and is welded to the outer ends of the first bushing half cylinder (15) and the second bushing half cylinder (25).

7. The butt-welded suspension control arm according to claim 1, characterized in that: A first reinforcement protrusion (18) and a second reinforcement protrusion (28) are respectively formed on the horizontal flat parts of the first arm body (1) and the second arm body (2).

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