Automobile triangular swing arm clamping device
By designing a car triangular swing arm clamping device that combines a rotating plate and a support plate with horizontal and vertical clamping components, the problem of lateral slippage during processing is solved, improving processing accuracy and efficiency, and adapting to the clamping replacement of different types of triangular swing arms.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI ZHONGLI AUTO PARTS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
AI Technical Summary
In the prior art, the automotive triangular control arm is prone to lateral slippage or torsion during the machining process due to the cutting force, especially when machining at the end or edge position, which causes the machining position to deviate from the preset trajectory and affects the accuracy.
A car triangular swing arm clamping device was designed, which adopts a rotating plate and support plate structure, combined with horizontal and vertical clamping components. The rotating plate is driven to rotate by a servo motor, and multi-directional positioning is achieved by using an arc plate and a buffer pad to ensure stable clamping of the triangular swing arm in the horizontal and vertical directions.
It significantly reduces the risk of lateral offset during machining, improves machining accuracy, and improves work efficiency by adapting to different types of triangular swing arms through the overall replacement of fixtures.
Smart Images
Figure CN224488422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to an automotive triangular swing arm clamping device. Background Technology
[0002] The automotive control arm, also known as a swing arm, serves a balancing and supporting function. When a car travels on uneven roads, the tires swing up and down, which is accomplished by the swinging of the control arm. The tires are mounted on the axle head, which is connected to the control arm via a ball joint. During the manufacturing process of the automotive control arm, it needs to be clamped and fixed to facilitate punching or grinding. A Chinese utility model patent (publication number: CN222569725U) discloses a control arm welding fixture that uses a clamping assembly to clamp and fix the automotive control arm, thereby preventing displacement of the control arm during the welding process.
[0003] However, the above-mentioned device still has some shortcomings in use. Specifically, positioning is achieved by the vertical pressure between the clamping plate and the receiving plate. During the processing, it is easy to slip or twist under the action of cutting force. Especially when processing the end or edge of the swing arm, the lateral displacement will directly cause the processing position to deviate from the preset trajectory, such as hole diameter deviation, hole position offset, or out-of-tolerance dimensional accuracy of the grinding surface. Therefore, in order to address the above situation, a clamping fixture for automotive triangular swing arms is proposed. Utility Model Content
[0004] To address the problem that lateral slippage or torsion easily occurs during the machining process in existing technologies under the action of cutting forces, especially when machining the end or edge of the swing arm, the lateral displacement will directly cause the machining position to deviate from the preset trajectory, a car triangular swing arm clamping device is proposed.
[0005] The technical solution of this utility model is: a car triangular swing arm clamping device, including a rotating plate, a support plate detachably provided on the top of the rotating plate, and a plurality of clamps fixedly provided on the top of the support plate;
[0006] The clamp includes an L-shaped plate, the bottom of which is fixedly connected to the top surface of the support plate, a vertical clamping assembly is connected to the vertical plate near the top of the L-shaped plate, and a horizontal clamping assembly is connected to the vertical plate near the bottom of the L-shaped plate.
[0007] The lateral clamping assembly includes a mounting plate with a rectangular surface. One end of the mounting plate is fixedly connected to the vertical plate of the L-shaped plate. The top surface of the mounting plate is provided with rectangular grooves near the two long sides. A second screw is provided in one of the rectangular grooves. The second screw is rotatably connected to the inner wall of the rectangular groove. One end of the second screw passes through the vertical plate of the L-shaped plate and a knob is provided at the end that passes through. A guide rod is provided in the other rectangular groove.
[0008] The mounting plate has a first arc-shaped plate at its top, one side of the bottom of the first arc-shaped plate is threadedly connected to the second screw, and the other side is slidably connected to the guide rod; the top of the vertical plate end of the mounting plate away from the L-shaped plate has a second arc-shaped plate.
[0009] Preferably, the top of the rotating plate has a mounting cavity, the support plate is disposed in the mounting cavity, and the rotating plate is rotatable.
[0010] Preferably, the rotating plate has multiple openings on opposite sides, and the support plate has L-shaped blocks on both sides corresponding to the openings, which are engaged in the openings.
[0011] Preferably, the rotating plate has mounting holes on both sides near each opening; the support block has screw holes, the positions of which correspond to the positions of the mounting holes, and the screw holes and mounting holes are connected by bolts.
[0012] Preferably, the vertical clamping assembly includes a fixing plate and a pressure plate. One end of the fixing plate is fixed to the side of the vertical plate of the L-shaped plate. The surface of the fixing plate is connected to a first screw through a thread. The bottom of the first screw is connected to the pressure plate through a thread. One end of the pressure plate is slidably connected to the vertical plate of the L-shaped plate.
[0013] Preferably, the pressure plate has a slider at one end near the L-shaped plate, and the vertical plate of the L-shaped plate has a groove, with the slider slidably connected to the groove.
[0014] Preferably, a rubber pad is provided at the bottom of the pressure plate.
[0015] Preferably, the bottom of the first arc-shaped plate is provided with a threaded block, the second screw passes through the threaded block, and the other side of the bottom of the first arc-shaped plate is provided with a sliding block, and the guide rod slides through the sliding block.
[0016] Preferably, the inner arc surfaces of the first and second arc plates are provided with buffer pads.
[0017] The beneficial effects of this utility model are as follows: This utility model solves the problem that vertical pressure alone cannot constrain lateral displacement in the prior art, significantly reducing the risk of lateral offset during processing and improving processing accuracy; during use, it is convenient to replace the fixtures fixed on the support plate as a whole, thereby switching the corresponding fixtures according to different types of triangular swing arms. Overall replacement reduces the labor intensity of replacing them one by one and improves work efficiency. Attached Figure Description
[0018] Figure 1 This is a perspective view of the automotive triangular swing arm clamping device of this utility model;
[0019] Figure 2 A perspective view of the assembly structure of the automotive triangular swing arm clamping device of this utility model;
[0020] Figure 3 This is a perspective view of the support block of this utility model;
[0021] Figure 4 This is a perspective view of the fixture of this utility model;
[0022] Figure 5 This is a perspective view of the lateral clamping component of this utility model.
[0023] The component names corresponding to the various reference numerals in the diagram are as follows:
[0024] 1. Rotating plate; 11. Mounting cavity; 12. Opening; 13. Mounting hole; 2. Support plate; 3. Support block; 31. Screw hole; 4. Fixture; 41. L-shaped plate; 411. Slide groove; 42. Vertical clamping assembly; 421. Fixing plate; 422. Pressure plate; 423. First screw; 43. Horizontal clamping assembly; 431. Mounting plate; 4311. Rectangular groove; 4312. Second screw; 4313. Knob; 4314. Guide rod; 432. First arc-shaped plate; 433. Second arc-shaped plate. Detailed Implementation
[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.
[0026] refer to Figure 1 , 2 As shown in the figure, this application discloses an automotive triangular swing arm clamping device, including a rotating plate 1. The top of the rotating plate 1 is detachably provided with a support plate 2. The surfaces of the rotating plate 1 and the support plate 2 are both rectangular. The top of the support plate 2 is fixedly provided with a plurality of clamps 4. In this embodiment, a total of 3 clamps 4 are provided, of which 2 clamps 4 are provided near the short side of the support plate 2, and the other is provided near the other short side of the support plate 2.
[0027] refer to Figure 2 , 3 As shown, the top of the rotating plate 1 has an installation cavity 11, the support plate 2 is disposed in the installation cavity 11, and the bottom of the rotating plate 1 is connected to a rotating component.
[0028] The rotating component is used to drive the rotating plate 1 to rotate 360°. Its structure is a servo motor, or it adopts the same structure as the existing technology used to drive the rotation of the worktable, which will not be described in detail here.
[0029] The rotating plate 1 has multiple openings 12 on both sides of its long side, and mounting holes 13 are provided on both sides of the rotating plate 1 near each opening 12. Support blocks 3 are provided on opposite sides of the long side of the support plate 2 at positions corresponding to the openings 12. The support blocks 3 are L-shaped and are snapped into the openings 12. The support blocks 3 are provided with screw holes 31, the positions of which correspond to the positions of the mounting holes 13. The screw holes 31 and the mounting holes 13 are connected by bolts.
[0030] The support plate 2 is lifted above the mounting cavity 11 of the rotating plate 1, and the support blocks 3 on both sides of the support plate 2 are aligned with the opening 12 of the rotating plate 1. The support plate 2 is slowly lowered until the support blocks 3 are completely inserted into the opening 12. At this time, the bottom of the support plate 2 is in contact with the bottom surface of the mounting cavity 11. Then, the bolts are passed through the screw holes 31 of the support blocks 3 and screwed into the mounting holes 12 of the rotating plate 1. The bolts are tightened step by step in a diagonal sequence to complete the fixed connection between the support plate 2 and the rotating plate 1.
[0031] refer to Figure 3 , 4 As shown, the clamp 4 includes an L-shaped plate 41, the bottom of which is fixedly connected to the top surface of the support plate 2. A vertical clamping assembly 42 is connected to the vertical plate of the L-shaped plate 41 near the top, and a horizontal clamping assembly 43 is connected to the vertical plate of the L-shaped plate 41 near the bottom.
[0032] The vertical clamping assembly 42 includes a fixing plate 421 and a pressure plate 422. One end of the fixing plate 421 is fixed to the side of the vertical plate of the L-shaped plate 41. The surface of the fixing plate 421 is connected to the first screw 423 by a thread. The bottom of the first screw 423 is connected to the pressure plate 422 by a thread. One end of the pressure plate 422 is slidably connected to the vertical plate of the L-shaped plate 41. A slider is welded to the end of the pressure plate 422 near the L-shaped plate 41. A groove 411 is provided on the vertical plate of the L-shaped plate 41. The slider is slidably connected to the groove 411.
[0033] The slide 411 is a T-shaped slide, and the clearance between the slider and the slide 411 is 0.03-0.05mm to ensure that there is no jamming during the lifting and lowering of the pressure plate 422; the first screw 423 is made of 40Cr material, and the surface is nitrided (nitriding layer depth 0.3-0.5mm). A butterfly handle is welded to the top, and the surface is knurled for easy gripping and rotation by the operator. The pressure plate 422 is made of wear-resistant cast iron material, and a 3mm thick nitrile rubber pad is pasted on the bottom. The surface of the rubber pad is made of diamond anti-slip texture, which can not only avoid damaging the surface of the workpiece, but also enhance the friction.
[0034] The lateral clamping assembly 43 includes a mounting plate 431 with a rectangular surface. One end of the mounting plate 431 is fixedly connected to the side of the vertical plate of the L-shaped plate 41. The top surface of the mounting plate 431 has rectangular grooves 4311 near the two long sides. A second screw 4312 is provided in one of the rectangular grooves 4311. The second screw 4312 is rotatably connected to the inner wall of the rectangular groove 4311. One end of the second screw 4312 passes through the vertical plate of the L-shaped plate 41. A knob 4313 is provided at the end of the second screw 4312 that protrudes from the plate. The knob 4313 is injection molded from nylon material and has radial anti-slip ribs on its surface. A guide rod 4314 is provided in the other rectangular groove 4311.
[0035] The top of the mounting plate 431 is provided with a first arc-shaped plate 432. One side of the bottom of the first arc-shaped plate 432 is threadedly connected to the second screw 4312, and the other side is slidably connected to the guide rod 4314. The top of the vertical plate end of the mounting plate 431 away from the L-shaped plate 41 is provided with a second arc-shaped plate 433.
[0036] The inner arc radius of the first arc plate 432 and the second arc plate 433 is designed to be 30-50mm according to the common specifications of the triangular swing arm, and a 2mm thick polyurethane buffer pad is attached to the inner arc surface. Specifically, the specific shapes of the first arc plate 432 and the second arc plate 433 on each clamp 4 are adapted to the shape of the triangular swing arm to be clamped.
[0037] The bottom of the first arc plate 432 is provided with a threaded block, and the second screw 4312 is threaded through the threaded block. The other side of the bottom of the first arc plate 432 is provided with a sliding block, and the guide rod 4314 is slidably inserted through the sliding block.
[0038] The specific working principle is as follows:
[0039] Place the car's triangular control arm on the lateral clamping assembly 43 so that the control arm is in contact with the outer wall of the second arc-shaped plate 433. First, operate the lateral clamping assembly 43 by rotating the knob 4313 clockwise, causing the second screw 4313 to rotate within the rectangular groove 4311. Because the threaded block at the bottom of the first arc-shaped plate 432 is threadedly engaged with the second screw 701, and the sliding block at the bottom of the first arc-shaped plate 432 slides along the guide rod 703, the first arc-shaped plate 432 moves towards the second arc-shaped plate 433 until the two arcs are aligned. The buffer pad of the plate is in close contact with the side of the swing arm. At this time, the swing arm is clamped in the horizontal direction. Then, the vertical clamping assembly 42 is operated. The butterfly handle of the first screw 423 is rotated clockwise. The first screw 423 moves downward along the threaded hole of the fixed plate 421, which drives the pressure plate 422 to descend vertically along the T-shaped slide groove 411 of the L-shaped plate 41. When the rubber pad at the bottom of the pressure plate 422 contacts the top of the swing arm, the swing arm is pressed in the vertical direction. At this time, the triangular swing arm achieves stable positioning under the combined constraints of the horizontal and vertical directions.
[0040] The beneficial effects are:
[0041] This invention solves the problem that vertical pressure alone cannot constrain lateral displacement in the prior art, significantly reducing the risk of lateral displacement during processing and improving processing accuracy. During use, it facilitates the replacement of the fixtures fixed on the support plate as a whole, thereby switching the corresponding fixtures according to different types of triangular swing arms. Overall replacement reduces the labor intensity of replacing individual fixtures one by one and improves work efficiency.
[0042] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.
[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.
Claims
1. A car triangular swing arm clamping device, characterized in that, It includes a rotating plate (1), and a support plate (2) is detachably provided on the top of the rotating plate (1). Multiple clamps (4) are fixedly provided on the top of the support plate (2). The clamp (4) includes an L-shaped plate (41), the bottom of the L-shaped plate (41) is fixedly connected to the top surface of the support plate (2), the vertical plate of the L-shaped plate (41) is connected to a vertical clamping assembly (42) near the top, and the vertical plate of the L-shaped plate (41) is connected to a horizontal clamping assembly (43) near the bottom. The transverse clamping assembly (43) includes a mounting plate (431). The surface of the mounting plate (431) is rectangular. One end of the mounting plate (431) is fixedly connected to the vertical plate of the L-shaped plate (41). The top surface of the mounting plate (431) is provided with rectangular grooves (4311) near the two long sides. A second screw (4312) is provided in one of the rectangular grooves (4311). The second screw (4312) is rotatably connected to the inner wall of the rectangular groove (4311). One end of the second screw (4312) passes through the vertical plate of the L-shaped plate (41), and a knob (4313) is provided at the end that passes through. A guide rod (4314) is provided in the other rectangular groove (4311). The top of the mounting plate (431) is provided with a first arc plate (432), one side of the bottom of the first arc plate (432) is threadedly connected to the second screw (4312), and the other side is slidably connected to the guide rod (4314); the top of the vertical plate end of the mounting plate (431) away from the L-shaped plate (41) is provided with a second arc plate (433).
2. The automotive triangular swing arm clamping device according to claim 1, characterized in that, The rotating plate (1) has an installation cavity (11) at its top, and the support plate (2) is disposed in the installation cavity (11). The rotating plate (1) is rotatable.
3. The automotive triangular swing arm clamping device according to claim 1, characterized in that, The rotating plate (1) has multiple openings (12) on opposite sides. The support plate (2) has blocks (3) on both sides corresponding to the openings (12). The blocks (3) are L-shaped and are engaged in the openings (12).
4. The automotive triangular swing arm clamping device according to claim 3, characterized in that, The rotating plate (1) has mounting holes (13) on both sides near each opening (12); the support block (3) has screw holes (31), the position of the screw holes (31) corresponds to the position of the mounting holes (13), and the screw holes (31) and the mounting holes (13) are connected by bolts.
5. The automotive triangular swing arm clamping device according to claim 1, characterized in that, The vertical clamping assembly (42) includes a fixing plate (421) and a pressure plate (422). One end of the fixing plate (421) is fixed to the side of the vertical plate of the L-shaped plate (41). The surface of the fixing plate (421) is connected to a first screw (423) by a thread. The bottom of the first screw (423) is connected to the pressure plate (422) by a thread. One end of the pressure plate (422) is slidably connected to the vertical plate of the L-shaped plate (41).
6. The automotive triangular swing arm clamping device according to claim 5, characterized in that, The pressure plate (422) has a slider at one end near the L-shaped plate (41), and the vertical plate of the L-shaped plate (41) has a groove (411), and the slider is slidably connected to the groove (411).
7. The automotive triangular swing arm clamping device according to claim 5, characterized in that, The bottom of the pressure plate (422) is provided with a rubber pad.
8. The automotive triangular swing arm clamping device according to claim 1, characterized in that, The bottom of the first arc plate (432) is provided with a threaded block, and the second screw (4312) is threaded through the threaded block. The other side of the bottom of the first arc plate (432) is provided with a sliding block, and the guide rod (4314) is slidably inserted through the sliding block.
9. The automotive triangular swing arm clamping device according to claim 1, characterized in that, The inner arc surfaces of the first arc plate (432) and the second arc plate (433) are provided with buffer pads.