Automobile front suspension control arm

Abstract

The utility model discloses an automobile front suspension control arm which comprises a control arm body with three supporting arms, a taper sleeve is arranged at one end of the control arm body, a first sleeve and a forged steel lining pin are arranged at the other end of the control arm body, a first lining is arranged in the first sleeve, a second lining is connected to the forged steel lining pin in a sleeved mode, and the forged steel lining pin is connected with the first lining in a sleeved mode. The second lining is sleeved with a support assembly. The support assembly comprises a second sleeve arranged on the outer side wall of the second lining in a sleeving mode, a large stamping support is connected to the outer side wall of the second sleeve in a clamped mode, and a small stamping support is arranged on the upper side of the large stamping support. The automobile front overhang control arm can solve the problem that parts of an existing automobile front overhang control arm lose efficacy due to fatigue of welding seams.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive parts, and particularly relates to an automotive front suspension control arm. Background Art

[0002] In the field of automotive engineering, the MacPherson suspension is a common front suspension system. Due to its simple structure, light weight, high cost-effectiveness and other characteristics, it is widely used in various vehicle models. The front suspension control arm is a key component in the suspension system, which directly affects the vehicle's handling performance, stability and riding comfort. The front end and the rear end of the front suspension control arm need to be press-fitted with bushings to be connected to the subframe, and the other end is connected to the steering knuckle. It is a relatively difficult part to design among the front suspension parts. Content of the Utility Model

[0003] The utility model provides an automotive front suspension control arm, which can solve the problem of part failure caused by weld fatigue of the existing automotive front suspension control arm.

[0004] To achieve the above object, the utility model provides the following technical solution: an automotive front suspension control arm, including a control arm body with three arms. One end of the control arm body is provided with a taper sleeve, and the other end of the control arm body is provided with a first sleeve and a forged steel bushing pin. A first bushing is arranged inside the first sleeve, a second bushing is sleeved on the forged steel bushing pin, and a bracket assembly is sleeved on the second bushing; the bracket assembly includes a second sleeve sleeved on the outer side wall of the second bushing, a stamping large bracket is clamped on the outer side wall of the second sleeve, and a stamping small bracket is arranged on the upper side of the stamping large bracket. This structure can effectively reduce the stamping difficulty, reduce the stamping and welding processes, improve the product precision, and can effectively reduce the part failure caused by weld fatigue problems, and reduce the cost under the condition of meeting the working condition requirements.

[0005] Preferably, a first projection welding nut is arranged inside the stamping small bracket, with a simple structure and enhanced connection strength.

[0006] Preferably, a notch is arranged on one side of the upper part of the stamping large bracket and located on one side of the stamping small bracket, and second projection welding nuts are arranged on both sides of the notch. A through hole penetrating up and down is arranged on the stamping large bracket directly below the second projection welding nut, with a simple structure.

[0007] Preferably, a slot is arranged on one side of the middle part of the stamping large bracket and located on one side of the notch, and a second boss is arranged on one side of the slot. The stamping large bracket is welded to the second sleeve through the slot.

[0008] Preferably, a lug extending outwards is arranged at the lower part of the stamping large bracket, and a third projection welding nut is arranged on the lug, with a simple structure.

[0009] Preferably, the control arm body includes an upper plate stamping sheet body and a lower plate stamping sheet body which are oppositely arranged and are fixed by welding.

[0010] Preferably, first bosses are arranged at positions on the upper plate stamping sheet body and the lower plate stamping sheet body close to the end of the support arm, and positioning holes are arranged on the first bosses for positioning.

[0011] Preferably, a circular mounting hole and a waist-shaped mounting hole are arranged on one side of the first boss at a position on the upper plate stamping sheet body close to the first bushing for mounting a wire harness bracket.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The structure is simple. This structure can effectively reduce the stamping difficulty, reduce the stamping and welding processes, improve the product precision, effectively reduce the part failure caused by weld fatigue, reduce the cost under the condition of meeting the working condition requirements, and improve the connection safety between the control arm and the vehicle frame and other suspension components by using the taper bushing, sleeve, bushing and bracket assembly, and reduce the loosening risk of the connection part. It can solve the problem of part failure of the existing front suspension control arm of an automobile caused by weld fatigue. Description of the Drawings

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is an exploded view of the present utility model;

[0016] Figure 3 is a three-dimensional structure diagram of the upper plate stamping sheet body and the lower plate stamping sheet body of the present utility model;

[0017] Figure 4 is a structural schematic diagram at the control arm body of the present utility model;

[0018] Figure 5 is a three-dimensional structure diagram of the bracket assembly of the present utility model;

[0019] Figure 6 is a three-dimensional structure diagram of the stamping large bracket of the present utility model.

[0020] Reference Signs:

[0021] 1. Control arm body, 101. Upper plate stamping sheet, 102. Lower plate stamping sheet, 103. Cone sleeve, 104. First sleeve, 105. Forged steel bushing pin, 107. First boss, 108. Positioning hole, 109. Circular mounting hole, 110. Waist-shaped mounting hole, 2. First bushing, 3. Second bushing, 4. Bracket assembly, 401. Second sleeve, 402. Stamped large bracket, 403. Stamped small bracket, 404. First projection welding nut, 405. Second projection welding nut, 406. Third projection welding nut, 407. Notch, 408. Lifting lug, 409. Through hole, 410. Groove, 411. Second boss. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] As Figures 1-6 shown, in order to solve the problem of part failure caused by weld fatigue of the existing front suspension control arm of an automobile, the present invention provides the following technical solutions: an automobile front suspension control arm, including a control arm body 1 having three arms. A cone sleeve 103 is provided at one end of the control arm body 1, and a first sleeve 104 and a forged steel bushing pin 105 are provided at the other end of the control arm body 1. A first bushing 2 is provided inside the first sleeve 104, a second bushing 3 is sleeved on the forged steel bushing pin 105, and a bracket assembly 4 is sleeved on the second bushing 3; the bracket assembly 4 includes a second sleeve 401 sleeved on the outer side wall of the second bushing 3, and a stamped large bracket 402 is clamped on the outer side wall of the second sleeve 401. A stamped small bracket 403 is provided on the upper side of the stamped large bracket 402. This structure can effectively reduce the stamping difficulty, reduce the stamping and welding processes, improve the product accuracy, and effectively reduce the part failure caused by weld fatigue problems, and reduce the cost under the condition of meeting the working condition requirements.

[0024] In this embodiment, as Figure 5 shown, a first projection welding nut 404 is provided inside the stamped small bracket 403, which has a simple structure and enhances the connection strength.

[0025] In this embodiment, as Figure 5 shown, a notch 407 is provided on one side of the upper part of the stamped large bracket 402 and located above the stamped small bracket 403. Second projection welding nuts 405 are provided on both sides of the notch 407, and a through hole 409 that penetrates up and down is provided on the stamped large bracket 402 directly below the second projection welding nut 405, which has a simple structure.

[0026] In this embodiment, as Figure 6As shown, a slot 410 is provided on one side of the middle part of the stamping large bracket 402 located on one side of the notch 407. A second boss 411 is provided on one side of the slot 410. The stamping large bracket 402 is welded to the second sleeve 401 through the slot 410.

[0027] In this embodiment, as Figure 5 shown, a lug 408 extending outward is provided at the lower part of the stamping large bracket 402. A third projection welding nut 406 is provided on the lug 408, and the structure is simple.

[0028] In this embodiment, as Figure 3 shown, the control arm body 1 includes an upper plate stamping sheet body 101 and a lower plate stamping sheet body 102 which are oppositely arranged, and the two are fixed by welding.

[0029] In this embodiment, as Figure 3 shown, first bosses 107 are provided at positions on the upper plate stamping sheet body 101 and the lower plate stamping sheet body 102 close to the end of the support arm. Positioning holes 108 are provided on the first bosses 107 for positioning.

[0030] In this embodiment, as Figure 3 shown, a circular mounting hole 109 and a waist-shaped mounting hole 110 are provided on one side of the first boss 107 at a position on the upper plate stamping sheet body 101 close to the first bushing 2 for mounting a wire harness bracket.

[0031] In this embodiment, as Figure 1 shown, the upper plate stamping sheet body 101 and the lower plate stamping sheet body 102 are welded together by lap welding to form the control arm body 1. Then, the first sleeve 104, the taper sleeve 103 and the forged steel bushing pin 105 are welded to the control arm body 1. The first bushing 2 is press-fitted into the first sleeve 104. Then, continue to complete the assembly of the bracket assembly 4. The stamping large bracket 402 is stuck on the second sleeve 401 and welded at the notch 407. The stamping small bracket 403 is welded to the stamping large bracket 402. The first projection welding nut 404 is welded on the stamping small bracket 403. The second projection welding nut 405 is welded on the stamping large bracket 402. The third projection welding nut 406 is welded on the lug 408 to complete the bracket assembly 4. The second bushing 3 is first press-fitted into the second sleeve 401 and press-fitted onto the forged steel bushing pin 105 together as a semi-finished product.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, in the present utility model, descriptions such as "first", "second", etc. are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. A front suspension control arm for an automobile, characterized in that: include: A control arm body (1) having three arms, wherein a cone sleeve (103) is provided at one end of the control arm body (1), a first sleeve (104) and a forged steel bushing pin (105) are provided at the other end of the control arm body (1), a first sleeve (2) is provided in the first sleeve (104), a second sleeve (3) is sleeved on the forged steel bushing pin (105), and a bracket assembly (4) is sleeved on the second sleeve (3); The support assembly (4) comprises a second sleeve (401) sleeved on the outer wall of the second bushing (3), a stamped large support (402) being clamped on the outer wall of the second sleeve (401), and a stamped small support (403) is arranged on the upper side of the stamped large support (402).

2. The automobile front suspension control arm according to claim 1, characterized in that: A first projection welding nut (404) is arranged on the inner side of the stamped small bracket (403).

3. The automobile front suspension control arm according to claim 1, characterized in that: A notch (407) is provided on the upper part of the stamped large bracket (402) on one side of the stamped small bracket (403), second projection welding nuts (405) are provided on both sides of the notch (407), and a through hole (409) penetrating from top to bottom is provided on the stamped large bracket (402) directly below the second projection welding nut (405).

4. The automobile front suspension control arm according to claim 3, characterized in that: A slot (410) is provided in the middle of the large stamping bracket (402) on one side of the notch (407), and a second boss (411) is provided on one side of the slot (410).

5. The automobile front suspension control arm according to claim 1, characterized in that: The lower part of the stamped large bracket (402) is provided with a lifting ear (408) extending outward, and the lifting ear (408) is provided with a third projection welding nut (406).

6. The automobile front suspension control arm according to claim 1, characterized in that: The control arm body (1) comprises an upper plate stamping sheet (101) and a lower plate stamping sheet (102) which are arranged opposite to each other.

7. The automobile front suspension control arm according to claim 6, characterized in that: A first boss (107) is provided on the upper plate stamping sheet (101) and the lower plate stamping sheet (102) at a position close to the end of the support arm, and a positioning hole (108) is provided on the first boss (107).

8. The automobile front suspension control arm according to claim 7, characterized in that: A circular mounting hole (109) and a waist-shaped mounting hole (110) are provided on the upper plate stamping sheet (101) at a position close to the first bushing (2) and located on one side of the first boss (107).

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