Automobile control arm bending device and automobile control arm

By introducing a linkage mechanism between the pressing block, the pressing block and the traction rope into the bending device of the automobile control arm, the compression force is dynamically adjusted, and the problem of constant compression force in the prior art is solved, and the stable fixation and precise molding of the automobile control arm during the bending process is achieved.

CN120205636APending Publication Date: 2025-06-27ANHUI JINSHENG AUTO PARTS
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510256423.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

In the existing bending devices of automobile control arm, the compression force remains unchanged and cannot adapt to the increase in bending force, resulting in the automobile control arm that may loosen or deviate, increasing the possibility of processing failure.

Method used

A bending device of automobile control arm is designed. Through the linkage mechanism of the pressing block, the pressing block and the traction rope, the compression force is dynamically adjusted to ensure that the automobile control arm remains stable and fixed during the bending process.

Benefits of technology

Effectively prevent the car control arm from loosening or deflecting due to external forces, ensure accurate molding during bending, and avoid shape deviations caused by unstable fixation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120205636A_ABST
    Figure CN120205636A_ABST
Patent Text Reader

Abstract

The invention discloses an automobile control arm bending device which comprises a supporting column, a containing groove is formed in the supporting column, a containing plate is arranged at the bottom in the containing groove, a pressing block is elastically arranged at the top of the containing groove, an automobile control arm to be bent is horizontally placed between the containing plate and the pressing block, and the pressing block is elastically pressed on the top face of the automobile control arm. The automobile control arm bending device further comprises bending mechanisms which are symmetrically arranged on the two sides of the supporting column, through the arrangement of linkage mechanisms such as the pressing block, the abutting block and the pulling rope, the pulling force of the pulling rope is gradually increased along with rotation of the frame, the pressure of the abutting block on the pressing block is increased accordingly, and therefore the automobile control arm is further pressed and fixed; the pressing force is dynamically adjusted, the automobile control arm is effectively prevented from being loosened or deviated due to external force, the more stable fixing mode is beneficial to guaranteeing accurate forming of the automobile control arm in the bending process, and shape deviation caused by infirm fixing is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive control arms, and particularly relates to an automotive control arm bending device and an automotive control arm. Background Art

[0002] An automotive control arm is an important component in an automotive suspension system. Its main function is to connect the wheel and the vehicle body, ensure that the wheel can move along a predetermined trajectory during driving, and at the same time absorb and transmit road impact forces. During the processing of the automotive control arm, an automotive control arm bending device is required to process and bend it, so as to realize the bending and forming of the automotive control arm.

[0003] In the prior art, the pressing force applied by the bending device to fix the automotive control arm is generally fixed and does not change during the bending process. However, during the bending process, as the bending force applied to the automotive control arm gradually increases, the external force borne by the automotive control arm also increases accordingly. If the initial pressing force is not sufficient to resist the increasing bending force, the automotive control arm may become loose or shift, thereby increasing the possibility of failure in the processing of the automotive control arm. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention proposes the following technical solutions:

[0005] The present invention provides an automotive control arm bending device, including:

[0006] A support column, on which a placement groove is provided. Inside the placement groove, a placement plate is provided at the bottom, and a pressing block is elastically provided at the top. The automotive control arm to be bent is horizontally placed between the placement plate and the pressing block, and the pressing block elastically presses on the top surface of the automotive control arm;

[0007] It further includes a bending mechanism, which is symmetrically arranged on both sides of the support column. The bending mechanism includes a support frame, on which a support wheel is rotatably provided. A frame is also hingedly provided on the support frame, and a bending wheel is rotatably provided on the frame;

[0008] The top end of the pressing block is provided with an inclined surface portion;

[0009] It further includes a pressing block that is movably arranged in the horizontal direction. The bottom end surface of the pressing block is in sliding contact and cooperation with the inclined surface portion of the pressing block. One end of the frame away from the bending wheel is provided with a traction rope, and the other end of the traction rope is connected to the pressing block;

[0010] When the frame performs a bending action, it pulls the pressing block through the traction rope, so that the pressing block pushes the pressing block downward through the inclined surface portion, so that the pressing block further presses and fixes the automotive control arm.

[0011] Preferably, as the above technical solution, both the supporting wheel and the bending wheel have a receiving groove for receiving the automobile control arm to be bent, and the receiving groove surrounds the axes of the supporting wheel and the bending wheel in a circle.

[0012] Preferably, as the above technical solution, a vertically arranged guide rod 1 is provided in the placing groove, a sleeve block is provided at the end of the pressing block, the sleeve block is slidably sleeved outside the guide rod 1, and a spring is also sleeved on the outer part of the guide rod 1 between the sleeve block and the top wall of the placing groove.

[0013] Preferably, as the above technical solution, a guide rod 2 is provided on the side wall of the support column, the guide rod 2 is horizontally arranged, the pressing block is slidably sleeved on the guide rod 2, and the pressing block is in sliding contact and cooperation with the abutting block.

[0014] Preferably, as the above technical solution, it further includes a base, and the support frame is fixedly arranged on the base;

[0015] A guide frame is further provided on the base, one end of the frame away from the bending wheel is sleeved on the guide frame, the guide frame is arc-shaped, and it matches the movement track of the end of the frame.

[0016] Preferably, as the above technical solution, a fixed pulley 1 is provided at one end of the guide frame close to the support column, a fixed pulley 2 is provided on the side wall of the support column, and the other end of the traction rope is sequentially wound around the fixed pulley 1 and the fixed pulley 2 and then connected to the abutting block.

[0017] The present invention also provides an automobile control arm, which is a control arm produced by using the automobile control arm bending device described in any one of the above.

[0018] The beneficial effects of the present invention are as follows:

[0019] Through the setting of the linkage mechanism such as the pressing block, the abutting block, and the traction rope, as the frame rotates, the tension of the traction rope gradually increases, so that the pressure of the abutting block on the pressing block also increases accordingly, thereby further pressing and fixing the automobile control arm, realizing dynamic adjustment of the pressing force, effectively preventing the automobile control arm from loosening or shifting due to external force, and the more stable fixing method helps to ensure the precise forming of the automobile control arm during the bending process and avoid shape deviation caused by insecure fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows the overall schematic diagram of the bending device in the embodiment;

[0021] Figure 2 Shows the partial schematic diagram of the bending device in the embodiment;

[0022] Figure 3 ShowsFigure 2 Schematic enlarged view of the structure at position A in

[0023] Figure 4 The figure shows a side view schematic diagram of the support wheel in the embodiment;

[0024] Reference numerals: 10, base; 21, support frame; 22, support wheel; 221, accommodation groove; 23, frame; 24, bending wheel; 25, guide frame; 31, support column; 32, placement groove; 33, pressing block; 34, guide rod 1; 35, sleeve block; 36, spring; 41, abutting block; 42, guide rod 2; 43, traction rope; 44, fixed pulley 1; 45, fixed pulley 2. Detailed implementation manners

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] Embodiment

[0027] As Figure 1 , Figure 2 shown, Figure 1 The figure shows an overall schematic diagram of the bending device in the embodiment; Figure 2 The figure shows a partial schematic diagram of the bending device in the embodiment;

[0028] The automotive control arm bending device includes:

[0029] Support column 31, on which a placement groove 32 is provided. Inside the placement groove 32, a placement plate is provided at the bottom, and a pressing block 33 is elastically provided at the top. The automotive control arm to be bent is horizontally placed between the placement plate and the pressing block 33, and the pressing block 33 elastically presses on the top surface of the automotive control arm to preliminarily fix the automotive control arm.

[0030] It further includes a bending mechanism, which is symmetrically arranged on both sides of the support column 31. The bending mechanism includes a support frame 21, on which a support wheel 22 is rotatably arranged, and a frame 23 is also hingedly arranged on the support frame 21, and a bending wheel 24 is rotatably arranged on the frame 23.

[0031] As Figure 4 shown, Figure 4 The figure shows a side view schematic diagram of the support wheel in the embodiment;

[0032] Specifically, both the support wheel 22 and the bending wheel 24 have an accommodation groove 221 for accommodating the automotive control arm to be bent, and the accommodation groove 221 surrounds the axes of the support wheel 22 and the bending wheel 24 in a circle.

[0033] During the bending process, the placement groove 32 and the pressing block 33 on the support column 31 play a role in initially supporting and fixing the middle part of the automotive control arm. The support wheels 22 on both sides support the two ends of the automotive control arm, and the bending wheel 24 plays a role in bending. As the frame 23 rotates around the support frame 21, the bending wheel 24 forces the part of the automotive control arm to be bent that extends outside the support wheel 22 to bend downward.

[0034] As Figure 3 shown, Figure 3 what is shown is Figure 2 the enlarged schematic view of the structure at position A in

[0035] A first guiding rod 34 vertically arranged is provided in the placement groove 32. A sleeve block 35 is provided at the end of the pressing block 33. The sleeve block 35 is slidably sleeved outside the first guiding rod 34. A spring 36 is also sleeved on the outside of the first guiding rod 34 between the sleeve block 35 and the top wall of the placement groove 32.

[0036] The first guiding rod 34 is vertically arranged in the placement groove 32, which plays a role in guiding the up and down movement of the pressing block 33. It ensures that the movement direction of the pressing block 33 always remains perpendicular, avoiding unstable fixation or damage to the automotive control arm caused by deviation. The spring 36 provides an elastic pressing force for the pressing block 33. In the natural state of the spring 36, the pressing block 33 can press down on the automotive control arm.

[0037] As Figure 1 , Figure 2 , Figure 3 shown, Figure 1 what is shown is the overall schematic view of the bending device in the embodiment; Figure 2 what is shown is the partial schematic view of the bending device in the embodiment; Figure 3 what is shown is Figure 2 the enlarged schematic view of the structure at position A in

[0038] The top end of the pressing block 33 is provided with an inclined surface part;

[0039] It further includes a pressing block 41 movably arranged in the horizontal direction. The bottom end surface of the pressing block 41 is in sliding contact and cooperation with the inclined surface part of the pressing block 33. A traction rope 43 is provided at one end of the frame 23 away from the bending wheel 24. The other end of the traction rope 43 is connected to the pressing block 41;

[0040] When the frame 23 performs a bending action, it pulls the pressing block 41 through the traction rope 43, so that the pressing block 41 pushes the pressing block 33 downward through the inclined surface part, making the pressing block 33 further tightly press and fix the automotive control arm.

[0041] During the bending process, the pressing block 41 is pulled through the traction rope 43, thereby realizing horizontal movement.

[0042] The design of the inclined surface of the briquetting block 33 enables the pressing block 41 to generate a downward vertical component force through the inclined surface during horizontal movement, thereby pushing the briquetting block 33 downward. After the briquetting block 33 moves downward, it can further compress and fix the vehicle control arm to ensure its stability during the bending process.

[0043] Through the setting of the linkage mechanism of the briquetting block 33, the pressing block 41, and the towing rope 43, the vehicle control arm is further compressed, effectively preventing the vehicle control arm from loosening or shifting due to external forces. As the frame 23 rotates, the tension of the towing rope 43 gradually increases, and the pressure of the pressing block 41 on the briquetting block 33 also increases accordingly, achieving the effect of dynamically adjusting the pressing force. A more stable fixing method helps to ensure the precise forming of the vehicle control arm during the bending process and avoid shape deviation caused by insecure fixing.

[0044] As Figure 2 shown, Figure 2 The figure shows a partial schematic diagram of the bending device in the embodiment;

[0045] A second guide rod 42 is provided on the side wall of the support column 31. The second guide rod 42 is horizontally arranged, and the pressing block 41 is slidably sleeved on the second guide rod 42. The pressing block 41 is in sliding contact and cooperation with the briquetting block 33.

[0046] The second guide rod 42 is horizontally arranged on both side walls of the support column 31, playing a role in guiding the horizontal movement of the pressing block 41. The pressing block 41 is slidably sleeved on the second guide rod 42 and can move smoothly horizontally along the second guide rod 42 under the pulling of the towing rope 43.

[0047] As Figure 1 shown, Figure 1 The figure shows an overall schematic diagram of the bending device in the embodiment;

[0048] It further includes a base 10, and a support frame 21 is fixedly arranged on the base 10;

[0049] A guide frame 25 is also provided on the base 10. One end of the frame 23 far from the bending wheel 24 is sleeved on the guide frame 25. The guide frame 25 is arc-shaped and matches the movement track of the end of the frame 23.

[0050] The base 10 serves as the basic support component of the entire device, fixedly arranging the support frame 21. One end of the frame 23 far from the bending wheel 24 is sleeved on the guide frame 25. The guide frame 25 plays a role in guiding the rotation of the frame 23 to ensure its smooth and precise movement.

[0051] A first fixed pulley 44 is provided at one end of the guide frame 25 close to the support column 31. A second fixed pulley 45 is provided on the side wall of the support column 31. The other end of the towing rope 43 is sequentially wound around the first fixed pulley 44 and the second fixed pulley 45 and then connected to the pressing block 41.

[0052] When the frame 23 performs a bending action, it realizes smooth rotation through the guidance of the guide frame 25. At the same time, the towing rope 43 is tightened, and after changing the direction through the first fixed pulley 44 and the second fixed pulley 45, it pulls the abutting block 41 to move towards the direction close to the support column 31. The abutting block 41 pushes the pressing block 33 to move downward through the inclined surface part of the pressing block 33, so as to further press the vehicle control arm tightly.

[0053] As Figure 1 shown, Figure 1 The figure shows an overall schematic diagram of the bending device in the embodiment;

[0054] A vehicle control arm and a control arm produced by using the vehicle control arm bending device are also provided.

[0055] Working principle: When the device is in use, first place the vehicle control arm to be bent horizontally in the placement groove 32 of the support column 31. The pressing block 33 in the placement groove 32 initially presses the vehicle control arm tightly through the elastic force of the spring 36 to ensure that the middle part of it is firmly fixed. The two ends of the vehicle control arm are respectively placed in the accommodation grooves 221 of the two side support wheels 22. The support wheels 22 provide stable support for the two ends of the vehicle control arm to prevent it from shifting or deforming during the bending process. Then, apply an external force to make the frame 23 rotate around the support frame 21 to perform the bending work. At this time, the end of the frame 23 far from the bending wheel 24 moves smoothly along the arc track of the guide frame 25, and at the same time drives the towing rope 43 to be tightened. The towing rope 43 pulls the abutting block 41 to move towards the direction close to the support column 31. The abutting block 41 pushes the pressing block 33 to move downward through the inclined surface part of the pressing block 33, so as to further press the vehicle control arm tightly.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. Automobile control arm bending device, characterized in that: include: A support column (31), wherein a placement groove (32) is provided on the support column (31), wherein a placement plate is provided at the bottom of the placement groove (32), and a pressing block (33) is elastically provided at the top of the placement groove (32), and the automobile control arm to be bent is horizontally placed between the placement plate and the pressing block (33), and the pressing block (33) is elastically pressed on the top surface of the automobile control arm; It also includes a bending mechanism, which is symmetrically arranged on both sides of the support column (31), and the bending mechanism includes a support frame (21), on which a support wheel (22) is rotatably arranged, and a frame (23) is also hingedly arranged on the support frame (21), and a bending wheel (24) is rotatably arranged on the frame (23); The top of the pressing block (33) is provided with an inclined portion; It also includes a clamping block (41) movably arranged in the horizontal direction, the bottom end surface of the clamping block (41) is in sliding contact with the inclined surface of the pressing block (33), and a traction rope (43) is arranged at one end of the frame (23) away from the bending wheel (24), and the other end of the traction rope (43) is connected to the clamping block (41); When the frame (23) performs a bending action, the tightening block (41) is pulled by the traction rope (43), so that the tightening block (41) pushes the pressing block (33) downward through the inclined surface, so that the pressing block (33) further presses and fixes the vehicle control arm.

2. The vehicle control arm bending device according to claim 1, characterized in that: The supporting wheel (22) and the bending wheel (24) both have a receiving groove (221) for receiving the automobile control arm to be bent, and the receiving groove (221) surrounds the axes of the supporting wheel (22) and the bending wheel (24).

3. The vehicle control arm bending device according to claim 1, characterized in that: A vertically arranged guide rod (34) is arranged in the placement groove (32); a sleeve block (35) is arranged at the end of the pressure block (33); the sleeve block (35) is slidably sleeved on the outside of the guide rod (34); a section of the outside of the guide rod (34) and located between the sleeve block (35) and the top wall of the placement groove (32) is also sleeved with a spring (36).

4. The vehicle control arm bending device according to claim 1, characterized in that: A second guide rod (42) is provided on the side wall of the support column (31), the second guide rod (42) is arranged horizontally, the pressing block (41) is slidably sleeved on the second guide rod (42), and the pressing block (41) is in sliding contact with the pressing block (33).

5. The vehicle control arm bending device according to claim 1, characterized in that: It also includes a base (10), and the support frame (21) is fixedly arranged on the base (10); A guide frame (25) is also provided on the base (10), and one end of the frame (23) away from the bending wheel (24) is sleeved on the guide frame (25). The guide frame (25) is arc-shaped and matches the motion trajectory of the end of the frame (23).

6. The vehicle control arm bending device according to claim 5, characterized in that: A fixed pulley 1 (44) is arranged at one end of the guide frame (25) close to the support column (31), and a fixed pulley 2 (45) is arranged on the side wall of the support column (31). The other end of the traction rope (43) passes through the fixed pulley 1 (44) and the fixed pulley 2 (45) in sequence and is then connected to the clamping block (41).

7. Automobile control arm, characterized in that, A control arm produced using the automobile control arm bending device as described in any one of claims 1 to 6.