An anti-collision beam assembly welding tool
By using a mechanical transmission structure consisting of a bidirectional screw, threaded sleeve, and lead screw, combined with a sliding seat and a limiting rod, the problem of unstable clamping during the welding process of the anti-collision beam is solved, achieving energy saving, consumption reduction, and highly efficient adaptive clamping, thereby improving welding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HANGPU VEHICLE PARTS CO LTD
- Filing Date
- 2025-04-20
- Publication Date
- 2026-06-09
AI Technical Summary
Existing anti-collision beam welding fixtures rely on electric or hydraulic drives, which consume a lot of energy and make it difficult to ensure stability during the welding process. They are prone to displacement or loose clamping, which affects the welding quality.
The mechanical transmission structure, which uses a two-way screw and threaded sleeve, combined with the linkage between the lead screw and the support, enables the left and right clamping and downward fixing of the anti-collision beam. The combination structure of the sliding seat and the limiting rod can adapt to anti-collision beams of different heights and shapes, and the torsion spring is used to achieve adaptive clamping.
It achieves stable clamping of the anti-collision beam, reduces energy consumption, improves production efficiency and adaptability, ensures welding accuracy, and conforms to the concept of green manufacturing.
Smart Images
Figure CN224333763U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding tooling technology, and in particular to a welding tooling for a crash beam assembly. Background Technology
[0002] With the rapid development of the automotive industry, the safety and crashworthiness of vehicle body structures have become core concerns in the design and manufacturing process. As a crucial component of the vehicle body, the crash beam plays a vital role in absorbing energy, cushioning impacts, and mitigating collision forces. Therefore, the welding quality of the crash beam directly affects the overall safety performance of the vehicle. To ensure the welding precision and stability of the crash beam, welding tooling for the crash beam assembly has gradually become a key focus of research and development in the automotive manufacturing field.
[0003] Currently, traditional welding fixtures for crash beams typically employ a unidirectional clamping structure or an electrically driven clamping method. The crash beam is fixed using a hydraulic cylinder or electric lead screw, and the welding position is constrained by the welding fixture. While this type of fixture can achieve a certain degree of positioning and fixation during welding, its complex structure, high energy consumption, and tendency to experience clamping instability or displacement of the crash beam during welding can affect welding accuracy.
[0004] In existing technologies, the clamping of anti-collision beams usually relies on electric or hydraulic drives, which results in high energy consumption. At the same time, it is difficult to ensure the stability of the anti-collision beams during the welding process, which may lead to welding misalignment or insecure clamping, seriously affecting the welding quality. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a welding fixture for a crash beam assembly, which aims to improve the existing technology that usually relies on electric or hydraulic drive when clamping the crash beam, resulting in high energy consumption. At the same time, it is difficult to ensure the stability of the crash beam during the welding process, which may lead to welding misalignment or insecure clamping, seriously affecting the welding quality.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for a crash beam assembly, including a workbench, a bidirectional screw is rotatably connected inside the workbench, a threaded sleeve is threadedly connected to the outer wall of the bidirectional screw, L-shaped connecting plates are fixedly connected to both sides of the outer wall of the threaded sleeve, a limit component is provided at one end of the L-shaped connecting plate, a column is fixedly connected to the upper surface of the workbench, an extension block is provided above the column, a support is fixedly connected to one side of the outer wall of the extension block, a lead screw is rotatably connected inside the extension block, a threaded sleeve is threadedly connected to the outer wall of the lead screw, a support is fixedly connected to one side of the outer wall of the threaded sleeve, and a U-shaped clamp is rotatably connected inside both the support and the support.
[0007] The limiting assembly includes a sliding seat and an L-shaped clamp. The bottom of the sliding seat is fixedly connected to one end of the L-shaped connecting plate, and the L-shaped clamp is disposed above the sliding seat.
[0008] Furthermore, both the second support and the first support are fixedly connected to a fixed column inside. The middle part of the U-shaped clamp is rotatably connected to the outer wall of the fixed column. A torsion spring is sleeved on the outer wall of the fixed column. Guide components are provided inside both the sliding seat and the column.
[0009] Furthermore, the guide assembly includes a sliding column and a limiting rod, the outer wall of the sliding column being slidably connected to the interior of the column, and the outer wall of the limiting rod being slidably connected to the interior of the sliding seat.
[0010] Furthermore, the top of the sliding column is fixedly connected to the bottom of the extension block, and the top of the limiting rod is fixedly connected to the bottom of the L-shaped clamp.
[0011] Furthermore, one end of the torsion spring is fixedly connected to the inside of the second support, and the other end of the torsion spring is fixedly connected to the inside of the U-shaped clamp.
[0012] Furthermore, the threaded sleeve is slidably connected inside the worktable, and the threaded sleeve is used to drive the L-shaped connecting plate to move.
[0013] Furthermore, the L-shaped connecting plate is slidably connected inside the worktable, and the L-shaped connecting plate is used to drive the sliding seat to slide on the upper surface of the worktable.
[0014] Furthermore, the bottom of the column is fixedly connected to the upper surface of the workbench by bolts.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the left and right sides of the anti-collision beam are clamped by the cooperation of the bidirectional screw and the threaded sleeve, and the anti-collision beam is pressed down and fixed by the linkage structure of the screw and the second support, so that it remains stable during the welding process. At the same time, the fixing process does not require electric drive and is completed by mechanical transmission, which is in line with the concept of green manufacturing, can effectively save energy and reduce consumption, improve production efficiency and reduce energy consumption.
[0017] 2. In this utility model, the structure design of sliding seat and limiting rod is adopted, so that the L-shaped clamp can be adjusted according to the different heights of the anti-collision beam, and can be adapted to anti-collision beams of various specifications. At the same time, the U-shaped clamp can fit the surface of the anti-collision beam under the action of torsion spring, realize self-adaptive clamping, and automatically reset during disassembly, improving the convenience of operation and improving the adaptability of production. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of a welding fixture for a crash beam assembly proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the workbench of the anti-collision beam assembly welding fixture proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the extension block of a welding fixture for a crash beam assembly proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the internal structure of the support of the welding fixture for the anti-collision beam assembly proposed in this utility model.
[0022] Figure 5 This is a schematic diagram of one side of the sliding seat structure of a welding fixture for an anti-collision beam assembly proposed in this utility model.
[0023] Legend:
[0024] 1. Workbench; 2. Double-acting screw; 3. Threaded sleeve one; 4. L-shaped connecting plate; 5. Sliding seat; 6. L-shaped clamp; 7. Column; 8. Extension block; 9. Support one; 10. Lead screw; 11. Threaded sleeve two; 12. Support two; 13. U-shaped clamp; 14. Fixed column; 15. Torsion spring; 16. Sliding column; 17. Limiting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 - Figure 5This utility model provides an embodiment of a welding fixture for a crash beam assembly, including a workbench 1. A bidirectional screw 2 is rotatably connected inside the workbench 1. A threaded sleeve 3 is threadedly connected to the outer wall of the bidirectional screw 2. The bidirectional screw 2 and the threaded sleeve 3 cooperate to allow the two sides of the crash beam to move synchronously via L-shaped connecting plates 4, thereby achieving left and right clamping of the crash beam. L-shaped connecting plates 4 are fixedly connected to both sides of the outer wall of the threaded sleeve 3. The L-shaped connecting plates 4, through connection with a sliding seat 5, transmit the clamping force on both sides. A limit component is provided at one end of the L-shaped connecting plate 4. A column 7 is fixedly connected to the upper surface of the workbench 1. An extension block 8 is provided at the top. A support 9 is fixedly connected to one side of the outer wall of the extension block 8. A lead screw 10 is rotatably connected inside the extension block 8. A threaded sleeve 11 is threadedly connected to the outer wall of the lead screw 10. The lead screw 10 drives the support 12 to move along the lead screw 10 through the cooperation with the threaded sleeve 11. A support 12 is fixedly connected to one side of the outer wall of the threaded sleeve 11. U-shaped clamps 13 are rotatably connected inside both the support 9 and the support 12. The support 12 is used to support and guide the up and down movement of the U-shaped clamps 13. Under the drive of the support 12, the U-shaped clamps 13 can accurately clamp and press down to fix the anti-collision beam.
[0027] The limiting assembly includes a sliding seat 5 and an L-shaped clamp 6. The bottom of the sliding seat 5 is fixedly connected to one end of the L-shaped connecting plate 4. The L-shaped clamp 6 is positioned above the sliding seat 5 and is connected to the sliding seat 5. It is used to clamp the left and right sides of the anti-collision beam to ensure the stability of the anti-collision beam during the welding process.
[0028] Specifically, through the precise engagement of the bidirectional screw 2 and the threaded sleeve 3, the left and right sides of the anti-collision beam can be effectively clamped and fixed. When the bidirectional screw 2 rotates, it drives the threaded sleeves 3 on both sides to move in opposite directions. In turn, the threaded sleeves 3 drive the L-shaped connecting plate 4 to move synchronously left and right. The connection between the L-shaped connecting plate 4 and the sliding seat 5 causes the sliding seat 5 to move relative to each other. The movement of the sliding seat 5 ultimately drives the L-shaped clamping plate 6 to clamp the left and right sides of the anti-collision beam, ensuring the stability of the anti-collision beam in the welding process. Subsequently, by driving the lead screw 10 to rotate, the threaded sleeve 11 and the lead screw 1... The threaded engagement between the two leads causes the second support 12 to move along the lead screw 10. The second support 12 drives the U-shaped clamp 13 inside to vertically press down and fix the anti-collision beam, further ensuring that the anti-collision beam will not shift or loosen during the welding process. The entire clamping and fixing process relies entirely on the mechanical transmission principle, without any electric drive, which is in line with the concept of green manufacturing and reduces energy consumption. Through this purely mechanical clamping and fixing method, energy saving and consumption reduction are achieved, while also improving the efficiency of the production line, making the production process more environmentally friendly and economical.
[0029] Reference Figure 1 - Figure 5Both support 2 12 and support 1 9 are internally fixedly connected to a fixed column 14. The middle part of the U-shaped clamp 13 is rotatably connected to the outer wall of the fixed column 14. The fixed column 14 provides support, allowing the U-shaped clamp 13 to rotate around the outer wall of the fixed column 14. A torsion spring 15 is sleeved on the outer wall of the fixed column 14. The torsion spring 15 provides support by applying torsional force to the U-shaped clamp 13, enabling the U-shaped clamp 13 to self-adjust. When the anti-collision beam is clamped, the spring will cause the U-shaped clamp 13 to press tightly against the surface of the anti-collision beam. During disassembly, the torsion spring 15 uses its elasticity to drive the U-shaped clamp 13 to reset, thereby restoring the clamp to its original position. Both the sliding seat 5 and the column 7 are internally provided with guide components, which include a sliding column 16 and a limiting rod 17. The limiting rod 17 is connected to the sliding seat 5. The interaction enables the adjustment of the L-shaped clamp 6, which is then adapted to the height of the anti-collision beam. The outer wall of the sliding column 16 is slidably connected to the inside of the column 7, the outer wall of the limiting rod 17 is slidably connected to the inside of the sliding seat 5, the top of the sliding column 16 is fixedly connected to the bottom of the extension block 8, the top of the limiting rod 17 is fixedly connected to the bottom of the L-shaped clamp 6, one end of the torsion spring 15 is fixedly connected to the inside of the support 12, the other end of the torsion spring 15 is fixedly connected to the inside of the U-shaped clamp 13, the threaded sleeve 3 is slidably connected to the inside of the worktable 1, the threaded sleeve 3 is used to drive the L-shaped connecting plate 4 to move, the L-shaped connecting plate 4 is slidably connected to the inside of the worktable 1, the L-shaped connecting plate 4 is used to drive the sliding seat 5 to slide on the upper surface of the worktable 1, and the bottom of the column 7 is fixedly connected to the upper surface of the worktable 1 by bolts.
[0030] Specifically, through the combination of the L-shaped clamp 6 and the limiting rod 17, the operator can adjust the height of the anti-collision beam by pulling the L-shaped clamp 6 to drive the limiting rod 17 to slide within the sliding seat 5, thereby adapting to anti-collision beams of different specifications and sizes. At the same time, the U-shaped clamp 13, relying on the torsion spring 15 in its structural design, can adaptively fit the shape of the anti-collision beam. When clamping the anti-collision beam, one end of the U-shaped clamp 13 first contacts and fits against the surface of the anti-collision beam, while the other end, supported by the anti-collision beam, is tightly fitted against the anti-collision beam by rotating the U-shaped clamp 13 around the outer wall of the fixed column 14, achieving an all-round clamping effect. When disassembling, the torsion spring 15 automatically resets, driving the U-shaped clamp 13 back to its original position for easy reuse. This structural design is not only highly adaptable and easy to operate, but also improves the compatibility and adaptability of anti-collision beams of different shapes during production, greatly improving the practicality of the equipment.
[0031] Working principle: When the anti-collision beam assembly welding fixture is needed, the anti-collision beam is first placed on the U-shaped clamp 13 inside the support 9. Then, the bidirectional screw 2 is driven to move the two threaded sleeves 3 relative to each other. The threaded sleeves 3 drive the L-shaped connecting plates 4 on both sides to move. The L-shaped connecting plates 4 can then drive the sliding seats 5 on both sides to move relative to each other. Finally, the L-shaped clamp 6 clamps the anti-collision beam on both sides. Then, the screw 10 is driven to cooperate with the threaded relationship between the threaded sleeve 11 and the screw 10, so that the threaded sleeve 11 drives the support 12 to move with the rotation of the screw 10. This drives the U-shaped clamp 13 inside the support 12 to press down and fix the anti-collision beam. This process does not require electricity, is green manufacturing, saves energy and reduces consumption, and can also clamp and fix the anti-collision beam comprehensively.
[0032] Furthermore, by pulling the L-shaped clamp 6, the limiting rod 17 can slide inside the sliding seat 5, thus adapting to anti-collision beams of different heights. At the same time, when the U-shaped clamp 13 clamps the anti-collision beam, one end of the U-shaped clamp 13 will be in contact with the anti-collision beam. At this time, the U-shaped clamp 13 will rotate on the outer wall of the fixed column 14 due to the support of the anti-collision beam. Thus, through the rotation of the U-shaped clamp 13, the other end of it will be tightly in contact with the anti-collision beam again. During this process, the torsion spring 15 will be torsion. When disassembling, the elastic force of the torsion spring 15 will drive the U-shaped clamp 13 to reset, thus facilitating the next use.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A welding fixture for a crash beam assembly, comprising a workbench (1), characterized in that: The workbench (1) is internally connected to a bidirectional screw (2), and the outer wall of the bidirectional screw (2) is threadedly connected to a threaded sleeve (3). Both sides of the outer wall of the threaded sleeve (3) are fixedly connected to L-shaped connecting plates (4). One end of the L-shaped connecting plate (4) is provided with a limit component. The upper surface of the workbench (1) is fixedly connected to a column (7). An extension block (8) is provided above the column (7). One side of the outer wall of the extension block (8) is fixedly connected to a support (9). The inside of the extension block (8) is internally connected to a lead screw (10). The outer wall of the lead screw (10) is threadedly connected to a threaded sleeve (11). One side of the outer wall of the threaded sleeve (11) is fixedly connected to a support (12). Both the support (9) and the support (12) are internally connected to a U-shaped clamp (13). The limiting component includes a sliding seat (5) and an L-shaped clamp (6). The bottom of the sliding seat (5) is fixedly connected to one end of the L-shaped connecting plate (4), and the L-shaped clamp (6) is disposed above the sliding seat (5).
2. The anti-collision beam assembly welding fixture according to claim 1, characterized in that: The second support (12) and the first support (9) are both fixedly connected to a fixed column (14). The middle part of the U-shaped clamp (13) is rotatably connected to the outer wall of the fixed column (14). The outer wall of the fixed column (14) is fitted with a torsion spring (15). The sliding seat (5) and the column (7) are both provided with guide components.
3. The anti-collision beam assembly welding fixture according to claim 2, characterized in that: The guide assembly includes a sliding column (16) and a limiting rod (17). The outer wall of the sliding column (16) is slidably connected to the inside of the column (7), and the outer wall of the limiting rod (17) is slidably connected to the inside of the sliding seat (5).
4. The anti-collision beam assembly welding fixture according to claim 3, characterized in that: The top of the sliding column (16) is fixedly connected to the bottom of the extension block (8), and the top of the limiting rod (17) is fixedly connected to the bottom of the L-shaped clamp (6).
5. The anti-collision beam assembly welding fixture according to claim 3, characterized in that: One end of the torsion spring (15) is fixedly connected to the inside of the second support (12), and the other end of the torsion spring (15) is fixedly connected to the inside of the U-shaped clamp (13).
6. The anti-collision beam assembly welding fixture according to claim 1, characterized in that: The threaded sleeve (3) is slidably connected inside the workbench (1), and the threaded sleeve (3) is used to drive the L-shaped connecting plate (4) to move.
7. The anti-collision beam assembly welding fixture according to claim 1, characterized in that: The L-shaped connecting plate (4) is slidably connected inside the workbench (1), and the L-shaped connecting plate (4) is used to drive the sliding seat (5) to slide on the upper surface of the workbench (1).
8. The anti-collision beam assembly welding fixture according to claim 1, characterized in that: The bottom of the column (7) is fixedly connected to the upper surface of the workbench (1) by bolts.