Limiting welding tool for automobile bumper

Abstract

The application relates to a limiting welding tool for automobile bumpers, which comprises a head, a workbench and a bottom plate, the head is located on the top surface of the workbench, the bottom surface of the workbench is fixedly connected with supporting legs, the bottom plate is fixedly connected on the periphery of the supporting legs, and the bottom plate protrudes from the front surface of the workbench; the top surface of the workbench is provided with pressing mechanisms on both sides, which are folded towards the head and pressed on the top surface of the head, the pressing mechanisms are provided with downward pressing mechanisms which press on both sides of the top surface of the head, and the bottom surfaces of the downward pressing mechanisms are attached to both sides of the top surface of the head in the locked state. Through the cooperation of the positioning mechanism and the pressing mechanism, the head front end can be pressed and positioned, the position of the bumper can be pre-positioned, the bumper can be supported, the welding of the bumper can be completed, the head can be clamped and positioned through the pressing mechanism and the downward pressing mechanism, the displacement of the head can be avoided, the deviation of the head can be prevented, the welding deviation can be avoided, and the welding efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of clamping tooling technology, and more particularly to a limiting welding tooling for automobile bumpers. Background Technology

[0002] The front bumper of a car serves not only a decorative function but, more importantly, a safety device that absorbs and mitigates external impacts, protecting the vehicle body and occupants. Installing the bumper requires welding it to the front of the car, necessitating the use of welding fixtures to hold and position the vehicle's front end. However, existing welding fixtures still have shortcomings.

[0003] In existing technologies, the top surface of the car's front end is an arch-shaped structure with sloping sides. During the clamping process, it cannot effectively fit the car's front end, resulting in unstable clamping. This can cause the car to move during the welding of the bumper, leading to weld misalignment and affecting welding efficiency. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a limiting welding fixture for automotive bumpers. The specific technical solution is as follows:

[0005] A limiting welding fixture for automotive bumpers includes a front end, a worktable, and a base plate. The front end is located on the top surface of the worktable, and support legs are fixedly connected to the bottom surface of the worktable. The base plate is fixedly connected to the periphery of the support legs and protrudes from the front of the worktable. Both sides of the top surface of the worktable are provided with pressing mechanisms that fold towards the front end and press against the top surface of the front end. Each pressing mechanism has a pressing mechanism that presses down towards both sides of the top surface of the front end. In the locked state, the bottom surface of the pressing mechanism is in contact with both sides of the top surface of the front end. The top surface of the base plate is provided with a folding positioning mechanism that folds towards the front end of the front end. This positioning mechanism has a pressing mechanism that presses towards the front end of the front end. In the locked state, the pressing mechanism is close to and in contact with the front end of the front end. The top surface of the base plate is provided with a limiting mechanism that presses towards the bottom surface of the front end.

[0006] The combination of the positioning mechanism and the pressing mechanism can not only press and position the front end of the car, but also pre-position the position of the bumper and support the bumper to facilitate the welding of the bumper. Furthermore, the clamping and positioning of the front end by the pressing and pressing mechanism can prevent the front end from shifting, thus avoiding welding deviation and improving welding efficiency.

[0007] As an improvement to the above technical solution, the pressing mechanism includes an adjusting plate, a fixed plate, a first pressure plate, and an insert plate. The fixed plate is fixedly connected to the top surface of the workbench, and the top surface of the fixed plate is rotatably connected to the adjusting plate via a hinge. The top surface of the adjusting plate has an insertion hole for the insert plate to slide up and down. The top surface of the insert plate is fixedly connected to the first pressure plate, and the pressing mechanism is set on the first pressure plate to facilitate pressing on the top surface of the vehicle head and limiting the movement of the vehicle head when pressing it.

[0008] As an improvement to the above technical solution, the top surface of the adjusting plate is provided with a first threaded hole, and a positioning bolt is threaded into the first threaded hole. The bottom end of the positioning bolt is threaded into the fixed plate to facilitate positioning the adjusting plate after it is flipped.

[0009] As an improvement to the above technical solution, the pressing mechanism includes a first screw and a second pressure plate. The first screw is threadedly connected to the first pressure plate, and the second pressure plate is attached to the top surface of the vehicle front. A first ball bearing is rotatably arranged between the second pressure plate and the first screw. A memory anti-slip cotton pad is fixedly arranged on the bottom surface of the second pressure plate. The action of the first ball bearing facilitates the second pressure plate to be attached to the inclined surface of the top surface of the vehicle front.

[0010] As an improvement to the above technical solution, the limiting mechanism includes a first electric telescopic rod and a positioning plate. The bottom end of the first electric telescopic rod is fixedly connected to the top surface of the base plate, and the top end of the first electric telescopic rod is fixedly connected to the positioning plate. A through hole is provided on the worktable for the positioning plate to pass through, and the top surface of the positioning plate is pressed against the bottom surface of the vehicle head.

[0011] As an improvement to the above technical solution, the positioning mechanism includes a rotating component and an adjusting component. The rotating component includes a connecting plate and a rotating adjusting rod. The connecting plate is fixedly connected to both sides of the base plate. The rotating adjusting rod is rotatably disposed between adjacent connecting plates. A servo motor for driving the rotating adjusting rod to rotate is fixedly disposed on the connecting plate. A fixing block is sleeved around the rotating adjusting rod. The bottom surface of the fixing block is fixedly connected to the top surface of the base plate. The adjusting component is slidably sleeved around the rotating adjusting rod.

[0012] As an improvement to the above technical solution, the adjusting component includes a sleeve plate and a second electric telescopic rod. The sleeve plate is slidably sleeved around the rotating adjusting rod. A damping adjusting screw is threadedly connected between the rotating adjusting rod and the sleeve plate. A second threaded hole is provided on the rotating adjusting rod for inserting one end of the damping adjusting screw. The second electric telescopic rod is fixedly installed on the top surface of the sleeve plate, and the pressing mechanism is located at the top of the second electric telescopic rod.

[0013] As an improvement to the above technical solution, the pressing mechanism includes a second screw, a connecting block and a third pressure plate. The connecting block is fixedly connected to the top of the second electric telescopic rod. The second screw is threadedly connected to the connecting block, and both ends of the screw pass through the connecting block. A second ball bearing is rotatably arranged between the end of the second screw near the front of the vehicle and the third pressure plate.

[0014] As an improvement to the above technical solution, an inclined plate is fixedly installed on the back of the workbench.

[0015] The beneficial effects of this invention are:

[0016] The combination of the positioning mechanism and the pressing mechanism can not only press and position the front end of the car, but also pre-position the position of the bumper and support the bumper to facilitate the welding of the bumper. Furthermore, the clamping and positioning of the front end by the pressing and pressing mechanism can prevent the front end from shifting, thus avoiding welding deviation and improving welding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is an enlarged schematic diagram of the positioning plate structure of the present invention;

[0019] Figure 3 This is an enlarged schematic diagram of the first pressure plate structure of the present invention;

[0020] Figure 4 This is an enlarged structural diagram of the adjusting plate and fixing plate of the present invention;

[0021] Figure 5 This is a schematic diagram of the rotating adjustment rod structure of the present invention.

[0022] Reference numerals: 1. Workbench; 11. Support leg; 12. Inclined plate; 13. Through hole; 2. Base plate; 21. First electric telescopic rod; 211. Positioning plate; 22. Connecting plate; 3. Adjusting plate; 31. Fixing plate; 32. First threaded hole; 33. Insertion hole; 4. First pressure plate; 41. Insertion plate; 5. First screw; 51. First ball bearing; 511. Second pressure plate; 6. Rotary adjusting rod; 61. Second threaded hole; 62. Sleeve plate; 621. Second electric telescopic rod; 63. Servo motor; 64. Fixing block; 7. Second screw; 71. Connecting block; 72. Second ball bearing; 721. Third pressure plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the present invention provides a limiting welding fixture for automobile bumpers, including a front end, a worktable 1 and a base plate 2. The front end is located on the top surface of the worktable 1, and a support leg 11 is fixedly connected to the bottom surface of the worktable 1. The base plate 2 is fixedly connected to the periphery of the support leg 11 and protrudes from the front of the worktable 1.

[0025] Both sides of the top surface of the workbench 1 are provided with pressing mechanisms that fold towards the front of the vehicle and press against the top surface of the front of the vehicle. The pressing mechanisms are provided with pressing mechanisms that press towards both sides of the top surface of the front of the vehicle. When locked, the bottom surface of the pressing mechanisms is attached to both sides of the top surface of the front of the vehicle.

[0026] The top surface of the base plate 2 is provided with a folding positioning mechanism facing the front of the vehicle. The positioning mechanism is provided with a pressing mechanism that presses towards the front of the vehicle. In the locked state, the pressing mechanism is close to the front of the vehicle and fits against the front of the vehicle.

[0027] The top surface of the base plate 2 is provided with a limiting mechanism that presses towards the bottom surface of the front of the vehicle.

[0028] In this case, the front of the vehicle is located on the top surface of the workbench 1, with the base plate 2 located below the workbench 1 and its front protruding from the front surface of the workbench 1. Pressing mechanisms that fold upwards towards the front of the vehicle are provided on both sides of the workbench 1, allowing the pressing mechanisms to press against the top surface of the front of the vehicle. At this point, the pressing mechanisms are pressed at the highest point of the top surface of the front of the vehicle. A pressing mechanism is provided on the pressing mechanism, pressing downwards towards both sides of the top surface of the front of the vehicle. The two sides of the top surface of the front of the vehicle are inclined. When locked, the bottom surface of the pressing mechanism has the function of adhering to both sides of the top surface of the front of the vehicle. Therefore, by adjusting the pressing mechanism, the front of the vehicle can be pressed and positioned to ensure adherence to both sides of the top surface of the front of the vehicle. At this time, a limiting mechanism is used to press downwards towards the bottom surface of the front of the vehicle. The pressing mechanism effectively clamps and positions the front of the vehicle, ensuring its stability. Then, the positioning mechanism is folded down so that the pressing mechanism faces the front of the vehicle. Adjusting the pressing mechanism allows it to be pressed and fitted against the front of the vehicle in a locked state. The positioning mechanism also supports the bumper, positioning it at the front of the vehicle. The cooperation between the positioning and pressing mechanisms not only presses and positions the front of the vehicle but also pre-positions the bumper, supporting it for welding. Furthermore, clamping and positioning the front of the vehicle prevents displacement and offset welding, improving welding efficiency.

[0029] As a further implementation of this embodiment, such as Figure 1 , Figure 3 and Figure 4As shown, the pressing mechanism includes an adjusting plate 3, a fixed plate 31, a first pressing plate 4, and an insert plate 41. The fixed plate 31 is fixedly connected to the top surface of the workbench 1. The top surface of the fixed plate 31 is rotatably connected to the adjusting plate 3 via a hinge. The top surface of the adjusting plate 3 has an insertion hole 33 for the insert plate 41 to slide up and down. The top surface of the insert plate 41 is fixedly connected to the first pressing plate 4. The pressing mechanism is set on the first pressing plate 4.

[0030] The insert plate 41 is slidably installed in the insertion hole 33. A threaded rod is provided on the first pressure plate 4. The threaded rod is threadedly connected to the insert plate 41 and to the adjusting plate 3. By turning the threaded rod, the height of the insert plate 41 can be changed, thereby changing the height of the first pressure plate 4 so that the first pressure plate 4 can be pressed against the top surface of the vehicle head.

[0031] As a further implementation of this embodiment, such as Figure 4 As shown, the top surface of the adjusting plate 3 has a first threaded hole 32, and a positioning bolt is threaded into the first threaded hole 32. The bottom end of the positioning bolt is threaded into the fixing plate 31.

[0032] The positioning bolts are designed to facilitate the positioning of the adjustment plate 3. When the first pressure plate 4 is folded up to the top of the vehicle, the positioning bolts limit the movement of the adjustment plate 3.

[0033] As a further implementation of this embodiment, such as Figure 3 As shown, the pressing mechanism includes a first screw 5 and a second pressure plate 511. The first screw 5 is threadedly connected to the first pressure plate 4. The second pressure plate 511 is attached to the top surface of the front of the vehicle. A first ball bearing 51 is rotatably arranged between the second pressure plate 511 and the first screw 5. A memory anti-slip cotton pad is fixedly arranged on the bottom surface of the second pressure plate 511.

[0034] By setting the first ball bearing 51, the first screw 5 is screwed, and the first screw 5 is threadedly connected to the first pressure plate 4. This changes the distance between the bottom end of the first screw 5 and the top surface of the vehicle head, so that the second pressure plate 511 can be brought closer to the top surface of the vehicle head. As the second pressure plate 511 is pressed down, its bottom surface presses against the top surface of the vehicle head. At this time, the memory anti-slip pad adheres to the top surface of the vehicle head. As the first screw 5 moves, under the action of the first ball bearing 51, the second pressure plate 511 can be adjusted towards the inclined surface of the top surface of the vehicle head, so that the second pressure plate 511 adapts to the inclined surface of the top surface of the vehicle head and effectively adheres to the inclined surface of the top surface of the vehicle head, improving the stability of positioning.

[0035] As a further implementation of this embodiment, such as Figure 1 and Figure 2As shown, the limiting mechanism includes a first electric telescopic rod 21 and a positioning plate 211. The bottom end of the first electric telescopic rod 21 is fixedly connected to the top surface of the base plate 2, and the top end of the first electric telescopic rod 21 is fixedly connected to the positioning plate 211. A through hole 13 is provided on the workbench 1 for the positioning plate 211 to pass through, and the top surface of the positioning plate 211 is pressed against the bottom surface of the front of the vehicle.

[0036] The activation of the first electric telescopic rod 21 can drive the positioning plate 211 to move upward, so that the positioning plate 211 passes through the through hole 13 and abuts against the bottom surface of the front of the vehicle. At this time, the downward pressing pressure of the second pressure plate 511 on the top surface of the front of the vehicle, combined with the upward pressing pressure of the positioning plate 211, can effectively position the front of the vehicle and prevent the front of the vehicle from deviating.

[0037] As a further implementation of this embodiment, such as Figure 1 and Figure 5 As shown, the positioning mechanism includes a rotating component and an adjusting component. The rotating component includes a connecting plate 22 and a rotating adjusting rod 6. The connecting plate 22 is fixedly connected to both sides of the base plate 2. The rotating adjusting rod 6 is rotatably disposed between adjacent connecting plates 22. A servo motor 63 for driving the rotating adjusting rod 6 to rotate is fixedly disposed on the connecting plate 22. A fixing block 64 is sleeved around the rotating adjusting rod 6. The bottom surface of the fixing block 64 is fixedly connected to the top surface of the base plate 2. The adjusting component is slidably sleeved around the rotating adjusting rod 6.

[0038] The adjusting component includes a sleeve plate 62 and a second electric telescopic rod 621. The sleeve plate 62 is slidably sleeved on the periphery of the rotating adjusting rod 6. A damping adjusting screw is threadedly connected between the rotating adjusting rod 6 and the sleeve plate 62. A second threaded hole 61 is provided on the rotating adjusting rod 6 for inserting one end of the damping adjusting screw. The second electric telescopic rod 621 is fixedly installed on the top surface of the sleeve plate 62, and a pressing mechanism is installed at the top of the second electric telescopic rod 621.

[0039] The servo motor 63 can be started to drive the rotating adjustment rod 6 to rotate, which in turn drives the second electric telescopic rod 621 to rotate, so that the pressing mechanism is located at the front of the car. The second electric telescopic rod 621 can be started to adjust the height of the pressing mechanism to adapt to different cars. At the same time, by adjusting the height of the pressing mechanism, the bumper can be supported and positioned at the required height to facilitate the welding of the bumper.

[0040] As a further implementation of this embodiment, such as Figure 5 As shown, the pressing mechanism includes a second screw 7, a connecting block 71, and a third pressure plate 721. The connecting block 71 is fixedly connected to the top of the second electric telescopic rod 621. The second screw 7 is threadedly connected to the connecting block 71, and both ends of the screw 7 pass through the connecting block 71. A second ball bearing 72 is rotatably disposed between the end of the second screw 7 near the front of the vehicle and the third pressure plate 721.

[0041] The distance between the third pressure plate 721 and the front of the vehicle can be changed by turning the second screw 7. A second ball bearing 72 is rotatably arranged between the second screw 7 and the third pressure plate 721. The action of the second ball bearing 72 allows the third pressure plate 721 to be rotated in any direction. When the third pressure plate 721 is pressed against the front of the vehicle, it can effectively fit against the surface of the front of the vehicle. In conjunction with the second electric telescopic rod 621, after the bumper is placed at the front of the vehicle, the activation of the second electric telescopic rod 621 can cause the second screw 7 to abut against the bumper, positioning the bumper to facilitate the welding of the bumper.

[0042] As a further implementation of this embodiment, such as Figure 1 As shown, an inclined plate 12 is fixedly installed on the back of the workbench 1.

[0043] The inclined plate 12 is designed to move the car head to the top surface of the workbench 1 to facilitate welding work.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A limiting welding fixture for automobile bumpers, comprising a front end, a worktable (1), and a base plate (2), wherein the front end is located on the top surface of the worktable (1), a support leg (11) is fixedly connected to the bottom surface of the worktable (1), and the base plate (2) is fixedly connected to the periphery of the support leg (11), the base plate (2) protruding from the front surface of the worktable (1), characterized in that: The workbench (1) is provided with pressing mechanisms on both sides of the top surface, which fold towards the front of the vehicle and press against the top surface of the front of the vehicle. The pressing mechanism is provided with pressing mechanisms that press towards both sides of the top surface of the front of the vehicle. When the pressing mechanism is locked, the bottom surface of the pressing mechanism is attached to both sides of the top surface of the front of the vehicle. The top surface of the base plate (2) is provided with a folding positioning mechanism facing the front of the vehicle. The positioning mechanism is provided with a pressing mechanism facing the front of the vehicle. When locked, the pressing mechanism is close to the front of the vehicle and fits against the front of the vehicle. The top surface of the base plate (2) is provided with a limiting mechanism that presses towards the bottom surface of the vehicle head; The pressing mechanism includes an adjusting plate (3), a fixing plate (31), a first pressing plate (4), and an insert plate (41). The fixing plate (31) is fixedly connected to the top surface of the workbench (1). The top surface of the fixing plate (31) is rotatably connected to the adjusting plate (3) via a hinge. The top surface of the adjusting plate (3) is provided with an insertion hole (33) for the insert plate (41) to slide up and down. The top surface of the insert plate (41) is fixedly connected to the first pressing plate (4). The pressing mechanism is set on the first pressing plate (4). The limiting mechanism includes a first electric telescopic rod (21) and a positioning plate (211). The bottom end of the first electric telescopic rod (21) is fixedly connected to the top surface of the base plate (2), and the top end of the first electric telescopic rod (21) is fixedly connected to the positioning plate (211). A through hole (13) is provided on the workbench (1) for the positioning plate (211) to pass through. The top surface of the positioning plate (211) is pressed against the bottom surface of the front of the vehicle. The positioning mechanism includes a rotating component and an adjusting component. The rotating component includes a connecting plate (22) and a rotating adjusting rod (6). The connecting plate (22) is fixedly connected to both sides of the base plate (2). The rotating adjusting rod (6) is rotatably arranged between adjacent connecting plates (22). A servo motor (63) for driving the rotating adjusting rod (6) to rotate is fixedly arranged on the connecting plate (22). A fixing block (64) is sleeved around the rotating adjusting rod (6). The bottom surface of the fixing block (64) is fixedly connected to the top surface of the base plate (2). The adjusting component is slidably sleeved around the rotating adjusting rod (6). The adjusting component includes a sleeve plate (62) and a second electric telescopic rod (621). The sleeve plate (62) is slidably sleeved around the rotating adjusting rod (6). A damping adjusting screw is threaded between the rotating adjusting rod (6) and the sleeve plate (62). A second threaded hole (61) is provided on the rotating adjusting rod (6) for inserting one end of the damping adjusting screw. The second electric telescopic rod (621) is fixedly installed on the top surface of the sleeve plate (62). The pressing mechanism is located at the top of the second electric telescopic rod (621). The pressing mechanism includes a second screw (7), a connecting block (71), and a third pressure plate (721). The connecting block (71) is fixedly connected to the top of the second electric telescopic rod (621). The second screw (7) is threadedly connected to the connecting block (71), and both ends pass through the connecting block (71). A second ball bearing (72) is rotatably arranged between the end of the second screw (7) near the front of the vehicle and the third pressure plate (721).

2. The limiting welding fixture for automobile bumpers according to claim 1, characterized in that: The top surface of the adjusting plate (3) is provided with a first threaded hole (32), and a positioning bolt is threadedly connected to the first threaded hole (32). The bottom end of the positioning bolt is threadedly connected to the fixed plate (31).

3. The limiting welding fixture for automobile bumpers according to claim 1, characterized in that: The back of the workbench (1) is fixedly provided with an inclined plate (12) in an inclined state.

4. The limiting welding fixture for automobile bumpers according to claim 1, characterized in that: The pressing mechanism includes a first screw (5) and a second pressure plate (511). The first screw (5) is threadedly connected to the first pressure plate (4). The second pressure plate (511) is attached to the top surface of the front of the vehicle. A first ball bearing (51) is rotatably arranged between the second pressure plate (511) and the first screw (5). A memory anti-slip cotton pad is fixedly arranged on the bottom surface of the second pressure plate (511).

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