A clamping device for welding a vehicle door beam

By designing a clamping device for welding car door anti-collision beams, using V-grooves and anti-slip pads to clamp the tubular anti-collision beams, and adjusting and fixing the sliding frame, the problem of the inapplicability of the clamping mechanism in the existing technology is solved, and stable welding of anti-collision beams of different lengths is achieved.

CN224464014UActive Publication Date: 2026-07-07CHENGDU LINGYUN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU LINGYUN AUTO PARTS CO LTD
Filing Date
2025-06-29
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the prior art, the first clamping mechanism and the second clamping mechanism are not convenient to cooperate with the welding and fixing of the tubular anti-collision beam, and cannot be adjusted according to the length of the anti-collision beam, resulting in the inability to adapt to the welding and use of anti-collision beams of different lengths.

Method used

A clamping device for welding car door anti-collision beams was designed, including a movable base, a tray, a support frame, a sliding frame, and first and second clamping mechanisms. The tubular anti-collision beam is clamped by a V-groove and an anti-slip pad. The support frame and a third support block support the middle part. The sliding frame is adjusted in position and fixed by a fixing mechanism to adapt to welding anti-collision beams of different lengths.

Benefits of technology

It achieves stable clamping and fixing of tubular anti-collision beams, adapts to the welding needs of anti-collision beams of different lengths, improves the stability and applicability of welding, prevents slippage, and adapts to the welding of anti-collision beams of different lengths.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224464014U_ABST
    Figure CN224464014U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of clamping device for vehicle door crash beam welding, including mobile base and the platen of being installed in the inside of mobile base, the top center of the platen is fixedly installed with support frame, the both sides of the support frame are equipped with the sliding frame of being installed in the top of the platen.The utility model is equipped with V-shaped groove by first support block and first pressing block end face, can be conveniently matched with first pressing mechanism to pipe crash beam is clamped and fixed, by second pressing mechanism, second support block and second pressing block, crash beam support can be clamped, to facilitate the fixation when welding between pipe crash beam and crash beam support, by the setting of support frame and third support block, the middle part of pipe crash beam can be supported, improve the stability of pipe crash beam, by the setting of antiskid pad, pipe crash beam can be prevented from sliding when welding.
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Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and more specifically, to a clamping device for welding a car door anti-collision beam. Background Technology

[0002] A door side impact beam, also known as an internal side impact protection beam, is a crossbeam added to the internal structure of the car door to strengthen the side structure of the vehicle, thereby improving its resistance to side impacts and enhancing side safety. As an additional energy-absorbing protection, door side impact beams can reduce the external forces that occupants may experience. Door side impact beams generally come in two shapes: tubular and cap-shaped. Tubular side impact beams have brackets welded to both ends to connect the beam to the door.

[0003] A search revealed Chinese patent application number 202221345288.2, which discloses a clamping device for welding and grinding a rear door anti-collision beam. The device includes a base with movable wheels on both sides of one bottom end and casters on both sides of the other bottom end. Two symmetrically distributed first clamping mechanisms are arranged on both sides of the upper surface of the base to clamp and fix the two ends of the rear door anti-collision beam. Two symmetrically distributed second clamping mechanisms are arranged between the two first clamping mechanisms to clamp and fix the body of the rear door anti-collision beam. This invention is simple to operate. The two first clamping mechanisms limit and fix the two ends of the rear door anti-collision beam, and the two second clamping mechanisms limit and fix the middle portion of the left and right sections of the rear door anti-collision beam. Under the action of the supporting mechanism, the middle portion of the bottom of the rear door anti-collision beam is supported, thereby achieving uniform limiting and fixing of the rear door anti-collision beam. However, the aforementioned patent has the following shortcomings: during use, the first and second clamping mechanisms are not convenient for welding and fixing the tubular anti-collision beam, and the positions of the first and second clamping mechanisms cannot be adjusted according to the length of the anti-collision beam, making it unsuitable for welding anti-collision beams of different lengths. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of the first and second clamping mechanisms being inconvenient to cooperate with the welding and fixing of tubular anti-collision beams when using the above-mentioned patent, and the positions of the first and second clamping mechanisms not being able to be adjusted according to the length of the anti-collision beam, thus failing to adapt to the welding of anti-collision beams of different lengths. Therefore, a clamping device for welding car door anti-collision beams is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clamping device for welding door anti-collision beams is provided to improve the above-mentioned problems.

[0007] The present invention is as follows:

[0008] The device includes a movable base and a tray installed inside the movable base. A support frame is fixedly installed at the top center of the tray. Sliding frames are installed on both sides of the support frame on the top of the tray. The sliding frames are equipped with a first clamping mechanism and a second clamping mechanism for clamping and fixing a tubular anti-collision beam and an anti-collision beam bracket. Multiple third support blocks are fixedly installed on the top of the support frame. A first support block and a first pressure block are symmetrically installed on the first clamping mechanism. V-shaped grooves are formed on the end faces of the first support block, the first pressure block, and the third support blocks. Anti-slip pads are fixedly installed in the V-shaped grooves. A second support block and a second pressure block with flat end faces are symmetrically installed on the second clamping mechanism. The first clamping mechanism and the second clamping mechanism are slidably installed on the sliding frame. A fixing mechanism is provided on both the first clamping mechanism and the second clamping mechanism.

[0009] As a preferred technical solution of this utility model, the tray is rotatably connected to the movable base through a connecting shaft fixedly connected at both ends. A reduction motor is installed on the top of the movable base, and the output shaft of the reduction motor is connected to the end of the connecting shaft. A locking mechanism that cooperates with the tray is installed on the inner side of the movable base.

[0010] As a preferred technical solution of this utility model, the locking mechanism includes a second cylinder fixedly installed on the movable base and a locking block slidably installed on the movable base. A limiting plate is installed at the middle height of the connecting shaft, and the outer wall of the limiting plate is provided with a plurality of evenly distributed grooves.

[0011] As a preferred technical solution of this utility model, the sliding frame includes a first side plate and a second side plate symmetrically installed on the top of the tray, and two sliding rods are symmetrically installed between the first side plate and the second side plate.

[0012] As a preferred technical solution of this utility model, both the first pressing mechanism and the second pressing mechanism include a first support base. A first support plate is fixedly connected to the top of the first support base. A connecting ear is rotatably installed on the side wall of the first support plate. A first cylinder is fixedly connected to the connecting ear. A U-shaped seat is provided at the top of the piston rod of the first cylinder. A connecting plate is rotatably connected to the U-shaped seat through a rotating shaft. The bottom of the connecting plate is rotatably connected to the first support plate through a rotating shaft. A straight plate is fixedly connected to one end of the connecting plate.

[0013] As a preferred technical solution of this utility model, the first support block and the second support block are mounted on the first support plate. The top of the first pressure block and the second pressure block are rotatably mounted with a first adjusting bolt that is threadedly connected to the straight plate. Both sides of the first adjusting bolt are provided with guide rods that are slidably connected to the straight plate. The bottom end of the guide rod is fixedly connected to the top end of the first pressure block.

[0014] As a preferred technical solution of this utility model, the fixing mechanism includes a second adjusting bolt threadedly connected to the first support seat, a turntable fixedly connected to the top of the second adjusting bolt, a rubber block located below the first support seat fixedly connected to the bottom end of the second adjusting bolt, rollers installed at the four corners of the bottom of the first support seat, and through holes that cooperate with the sliding frame on the first support seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the solution of this utility model:

[0017] 1. The first support block and the first pressure block both have V-shaped grooves on their end faces, which facilitates the clamping and fixing of the tubular anti-collision beam with the first clamping mechanism. The second clamping mechanism, the second support block and the second pressure block can clamp the anti-collision beam bracket, which facilitates the fixing of the tubular anti-collision beam and the anti-collision beam bracket during welding. The support frame and the third support block can support the middle part of the tubular anti-collision beam and improve its stability. The anti-slip pad can prevent the tubular anti-collision beam from sliding during welding.

[0018] 2. By setting up a tray and a sliding frame, the first and second clamping mechanisms can be slid on the sliding frame during use to adjust their positions, which facilitates the welding of tubular anti-collision beams of different lengths. At the same time, after the positions of the first and second clamping mechanisms are adjusted, they can be fixed by a fixing mechanism to prevent the first and second clamping mechanisms from moving during the welding process. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the clamping device for welding the car door anti-collision beam provided by this utility model;

[0020] Figure 2 A schematic diagram of the overall structure of the clamping device for welding the car door anti-collision beam provided by this utility model;

[0021] Figure 3 A schematic diagram of the first support base structure of the clamping device for welding the door anti-collision beam provided by this utility model;

[0022] Figure 4 The present invention provides a clamping device for welding door anti-collision beams. Figure 1 Enlarged view of the structure at point A;

[0023] Figure 5 A schematic diagram of the third support block structure of the clamping device for welding the door anti-collision beam provided by this utility model;

[0024] Figure 6 A schematic diagram of the first side plate structure of the clamping device for welding the door anti-collision beam provided by this utility model;

[0025] Figure 7 A schematic diagram of the limiting plate structure of the clamping device for welding the door anti-collision beam provided by this utility model.

[0026] The image shows:

[0027] 1. Movable base; 2. First pressing mechanism; 3. Support plate; 4. Gear motor; 5. Locking mechanism; 6. Connecting shaft; 7. Second pressing mechanism; 8. Sliding frame; 9. Tubular anti-collision beam; 10. Anti-collision beam bracket; 11. Fixing mechanism; 12. First support block; 13. First pressure block; 14. First adjusting bolt; 15. Guide rod; 16. Support frame; 17. Second support block; 18. Second pressure block; 19. Third support block; 20. Anti-collision mechanism; 201. Sliding pad; 202. First support seat; 203. First cylinder; 204. Straight plate; 205. Connecting plate; 206. U-shaped seat; 207. Connecting ear; 208. Rubber block; 209. Roller; 210. Second adjusting bolt; 211. Through hole; 501. Second cylinder; 502. Locking block; 503. Limiting plate; 504. Groove; 801. First side plate; 802. Sliding rod; 803. Second side plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] like Figures 1-7As shown, this embodiment proposes a clamping device for welding a car door anti-collision beam, including a movable base 1 and a support plate 3 installed inside the movable base 1. A support frame 16 is fixedly installed at the top center of the support plate 3. Sliding frames 8 are provided on both sides of the support frame 16 and installed on the top of the support plate 3. The sliding frames 8 are equipped with a first pressing mechanism 2 and a second pressing mechanism 7 for clamping and fixing a tubular anti-collision beam 9 and an anti-collision beam bracket 10. A plurality of third support blocks 19 are fixedly installed on the top of the support frame 16. A first support block 12 and a first pressing block 13 are symmetrically installed on the first pressing mechanism 2. V-shaped grooves are opened on the end faces of the first support block 12, the first pressing block 13 and the third support block 19. Anti-slip pads 20 are fixedly installed in the V-shaped grooves. The groove facilitates clamping and fixing of the tubular anti-collision beam 9 with the first clamping mechanism 2. The second clamping mechanism 7, the second support block 17, and the second pressure block 18 clamp the anti-collision beam bracket 10, facilitating welding between the tubular anti-collision beam 9 and the anti-collision beam bracket 10. The support frame 16 and the third support block 19 support the middle of the tubular anti-collision beam 9, improving its stability. The anti-slip pad 20 prevents slippage of the tubular anti-collision beam 9 during welding. The second clamping mechanism 7 is symmetrically equipped with a second support block 17 and a second support block 18 with flat end faces. The pressure block 18, the first pressing mechanism 2, and the second pressing mechanism 7 are all slidably mounted on the sliding frame 8. The first pressing mechanism 2 and the second pressing mechanism 7 are each provided with a fixing mechanism 11. By setting the support plate 3 and the sliding frame 8, the first pressing mechanism 2 and the second pressing mechanism 7 can be slid on the sliding frame 8 during use to adjust their positions, thereby facilitating the welding of tubular anti-collision beams 9 of different lengths. At the same time, after the positions of the first pressing mechanism 2 and the second pressing mechanism 7 are adjusted, the fixing mechanism 11 can fix them to prevent the first pressing mechanism 2 and the second pressing mechanism 7 from moving during the welding process.

[0030] like Figure 1 , Figure 2 and Figure 7 As shown, in a preferred embodiment, based on the above method, the pallet 3 is further rotatably connected to the movable base 1 via connecting shafts 6 fixedly connected at both ends. A reduction motor 4 is mounted on the top of the movable base 1, and the output shaft of the reduction motor 4 is connected to the end of the connecting shaft 6. A locking mechanism 5 that cooperates with the pallet 3 is installed on the inner side of the movable base 1. It should be noted that the reduction motor 4 and the connecting shaft 6 can drive the pallet 3 to rotate, thereby adjusting the orientation of the welding surfaces of the tubular anti-collision beam 9 and the anti-collision beam bracket 10. After the adjustment is completed, the pallet 3 can be fixed by the locking mechanism 5.

[0031] like Figure 1 , Figure 2 and Figure 7 As shown, in a preferred embodiment, based on the above method, the locking mechanism 5 further includes a second cylinder 501 fixedly mounted on the movable base 1 and a locking block 502 slidably mounted on the movable base 1. A limiting disk 503 is installed at the middle height of the connecting shaft 6, and the outer wall of the limiting disk 503 has multiple evenly distributed grooves 504. It should be noted that in use, activating the second cylinder 501 moves the locking block 502 into the groove 504 to lock the limiting disk 503, thereby fixing the tray 3.

[0032] like Figure 1 , Figure 2 and Figure 6 As shown, in a preferred embodiment, based on the above method, the sliding frame 8 further includes a first side plate 801 and a second side plate 803 symmetrically mounted on the top of the support plate 3, and two sliding rods 802 symmetrically mounted between the first side plate 801 and the second side plate 803. It should be noted that the arrangement of the first side plate 801 and the second side plate 803 facilitates the installation of the sliding rods 802, and facilitates the movement of the first pressing mechanism 2 and the second pressing mechanism 7.

[0033] like Figures 1-4 As shown, in a preferred embodiment, based on the above method, both the first clamping mechanism 2 and the second clamping mechanism 7 include a first support base 201. A first support plate 203 is fixedly connected to the top of the first support base 201. A connecting ear 207 is rotatably mounted on the side wall of the first support plate 203. A first cylinder 202 is fixedly connected to the connecting ear 207. A U-shaped seat 206 is provided at the top of the piston rod of the first cylinder 202. A connecting plate 205 is rotatably connected to the U-shaped seat 206 via a rotating shaft. The bottom of the connecting plate 205 is rotatably connected to the first support plate 203 via a rotating shaft. A straight plate 204 is fixedly connected to one end of the connecting plate 205. It should be noted that during use, the first cylinder 202 can drive the straight plate 204 to rotate, thereby cooperating with the first pressing block 13 and the second pressing block 18 to move towards the first support block 12 and the second support block 17 to clamp and fix the tubular anti-collision beam 9 and the anti-collision beam bracket 10.

[0034] like Figures 1-4As shown in the preferred embodiment, based on the above method, the first support block 12 and the second support block 17 are further mounted on the first support plate 203. The tops of the first pressure block 13 and the second pressure block 18 are each rotatably mounted with a first adjusting bolt 14 threadedly connected to the straight plate 204. Guide rods 15, which are slidably connected to the straight plate 204, are provided on both sides of the first adjusting bolt 14. The bottom end of the guide rod 15 is fixedly connected to the top end of the first pressure block 13. It should be noted that the setting of the first adjusting bolt 14 facilitates the adjustment of the positions of the first pressure block 13 and the second pressure block 18, thereby facilitating the clamping and fixing of tubular anti-collision beams 9 and anti-collision beam brackets 10 with different diameters and thicknesses.

[0035] like Figures 1-3 As shown, in a preferred embodiment, based on the above method, the fixing mechanism 11 further includes a second adjusting bolt 210 threadedly connected to the first support base 201. A turntable is fixedly connected to the top of the second adjusting bolt 210, and a rubber block 208 located below the first support base 201 is fixedly connected to the bottom end of the second adjusting bolt 210. Rollers 209 are installed at the four corners of the bottom of the first support base 201, and through holes 211 that cooperate with the sliding frame 8 are opened on the first support base 201. It should be noted that after the positions of the first pressing mechanism 2 and the second pressing mechanism 7 are adjusted, the second adjusting bolt 210 is rotated by the turntable, and the rubber block 208 at the bottom end of the second adjusting bolt 210 abuts against the top of the support plate 3. The friction between the rubber block 208 and the support plate 3 fixes the first pressing mechanism 2 and the second pressing mechanism 7. The setting of the rollers 209 can reduce the friction between the first pressing mechanism 2 and the second pressing mechanism 7 and the support plate 3, which facilitates the movement of the first pressing mechanism 2 and the second pressing mechanism 7.

[0036] Specifically, the working principle of the clamping device for welding the door anti-collision beam is as follows: During use, the positions of the two first clamping mechanisms 2 and the two second clamping mechanisms 7 are adjusted according to the length of the tubular anti-collision beam 9. After the adjustment is completed, the first clamping mechanism 2 and the second clamping mechanism 7 are fixed by the fixing mechanism 11. The two anti-collision beam brackets 10 are placed on the top of the second support blocks 17 on the two second clamping mechanisms 7, and then clamped and fixed by the second clamping mechanism 7 and the third support block 19. Then, the tubular anti-collision beam 9 is placed in the V-shaped grooves on the end faces of the first support block 12 and the third support block 19, so that the two ends of the tubular anti-collision beam 9 are respectively mounted on the two anti-collision beam brackets 10. Then, the tubular anti-collision beam 9 is clamped and fixed by the first clamping mechanism 2 and the first pressure block 13. After the fixing is completed, the welding between the tubular anti-collision beam 9 and the anti-collision beam bracket 10 can be carried out.

[0037] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present utility model.

Claims

1. A clamping device for welding a car door anti-collision beam, comprising a movable base (1) and a support plate (3) installed inside the movable base (1), characterized in that, A support frame (16) is fixedly installed at the top center of the tray (3). A sliding frame (8) is installed on both sides of the support frame (16) on the top of the tray (3). The sliding frame (8) is equipped with a first clamping mechanism (2) and a second clamping mechanism (7) for clamping and fixing the tubular anti-collision beam (9) and the anti-collision beam bracket (10). A plurality of third support blocks (19) are fixedly installed on the top of the support frame (16). A first support block (12) and a first pressure block (13) are symmetrically installed on the first clamping mechanism (2). The first support block (12), the first pressure block (13) and the third support block (19) are all provided with V-shaped grooves on their end faces. Anti-slip pads (20) are fixedly installed in the V-shaped grooves. The second pressure mechanism (7) is symmetrically provided with a second support block (17) and a second pressure block (18) with flat end faces. The first pressure mechanism (2) and the second pressure mechanism (7) are both slidably installed on the sliding frame (8). The first pressure mechanism (2) and the second pressure mechanism (7) are both provided with fixing mechanisms (11).

2. The clamping device for welding a car door anti-collision beam according to claim 1, characterized in that, The pallet (3) is rotatably connected to the movable base (1) via a connecting shaft (6) fixedly connected to both ends. A geared motor (4) is installed on the top of the movable base (1). The output shaft of the geared motor (4) is connected to the end of the connecting shaft (6). A locking mechanism (5) that cooperates with the pallet (3) is installed on the inner side of the movable base (1).

3. The clamping device for welding a car door anti-collision beam according to claim 2, characterized in that, The locking mechanism (5) includes a second cylinder (501) fixedly installed on the movable base (1) and a locking block (502) slidably installed on the movable base (1). A limiting plate (503) is installed at the middle height of the connecting shaft (6). The outer wall of the limiting plate (503) is provided with a plurality of evenly distributed grooves (504).

4. The clamping device for welding a car door anti-collision beam according to claim 1, characterized in that, The sliding frame (8) includes a first side plate (801) and a second side plate (803) symmetrically installed on the top of the tray (3), and two sliding rods (802) are symmetrically installed between the first side plate (801) and the second side plate (803).

5. The clamping device for welding a car door anti-collision beam according to claim 1, characterized in that, Both the first pressing mechanism (2) and the second pressing mechanism (7) include a first support base (201). A first support plate (203) is fixedly connected to the top of the first support base (201). A connecting ear (207) is rotatably installed on the side wall of the first support plate (203). A first cylinder (202) is fixedly connected to the connecting ear (207). A U-shaped seat (206) is provided at the top of the piston rod of the first cylinder (202). A connecting plate (205) is rotatably connected to the U-shaped seat (206) through a rotating shaft. The bottom of the connecting plate (205) is rotatably connected to the first support plate (203) through a rotating shaft. A straight plate (204) is fixedly connected to one end of the connecting plate (205).

6. The clamping device for welding a car door anti-collision beam according to claim 5, characterized in that, The first support block (12) and the second support block (17) are mounted on the first support plate (203). The top of the first pressure block (13) and the second pressure block (18) are rotatably mounted with a first adjusting bolt (14) threadedly connected to the straight plate (204). The first adjusting bolt (14) is provided with guide rods (15) slidably connected to the straight plate (204) on both sides. The bottom end of the guide rod (15) is fixedly connected to the top end of the first pressure block (13).

7. A clamping device for welding a car door anti-collision beam according to claim 6, characterized in that, The fixing mechanism (11) includes a second adjusting bolt (210) threadedly connected to the first support base (201). A turntable is fixedly connected to the top of the second adjusting bolt (210), and a rubber block (208) located below the first support base (201) is fixedly connected to the bottom end of the second adjusting bolt (210). Rollers (209) are installed at the four corners of the bottom of the first support base (201), and through holes (211) that cooperate with the sliding frame (8) are opened on the first support base (201).