Anti-collision beam welding jig
By using the limiting pin and limiting claw design of the anti-collision beam welding fixture, the problem of positional offset after welding the ear plate to the anti-collision beam is solved, achieving accurate welding position and convenient removal, thus improving the practicality of welding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYING XIANGLU ZHONGTIAN NEW MATERIALS CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-23
AI Technical Summary
In the prior art, due to the thermal effect before and after welding, the ear plate and the anti-collision beam are displaced after welding, causing the mounting hole of the ear plate to jam with the limiting post, making it difficult to remove from the shelf.
A welding fixture for anti-collision beams is used. The anti-collision beams are limited by the clamping platform, the ear plates are supported by the resting part, and the horizontal and vertical limits are achieved by the limit pins and limit claws. After welding is completed, the limit pins and limit claws are disengaged, which facilitates the removal of the ear plates.
Ensuring the accurate positioning of the anti-collision beam and ear plate during welding facilitates the removal of the ear plate after welding, thus improving the practicality of the welding process.
Smart Images
Figure CN224390322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of welding fixtures, and more specifically to a welding fixture for anti-collision beams. Background Technology
[0002] Anti-collision beams are an important component of automotive protection systems. Their cross-section is usually concave, which allows them to be squeezed and deformed when a car is involved in a collision, absorbing the impact.
[0003] According to design requirements, the crash beam needs to be welded with assembly components such as lugs. The lugs have mounting holes, and are connected to the vehicle body via bolts through these holes, thus assembling the crash beam relative to the car. To ensure accurate welding positioning between the lugs and the crash beam, existing technology uses a clamping platform to limit the crash beam's position, while the lugs are placed on a support platform on one side of the crash beam. The support platform is equipped with locating posts that insert into the mounting holes of the lugs, thus positioning them before welding. However, due to the heat effect before and after welding, the lugs will shift slightly after welding, causing them to jam between the mounting holes and the locating posts, potentially preventing the lugs from being removed from the support platform. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the prior art that, due to the thermal effect before and after welding, the ear plate will shift to a certain position after welding the ear plate and the anti-collision beam, causing the mounting hole of the ear plate to jam with the limiting post, making it easy for the ear plate to be unable to be removed from the shelf.
[0005] To address the aforementioned problems, this utility model provides a welding fixture for anti-collision beams, comprising a base and a first clamping assembly. The base is provided with a clamping platform that can be engaged with the recess of the anti-collision beam, and a first support located on one side of the clamping platform. The upper part of the first support is provided with a resting part. The first clamping assembly includes a rotary drive, a limiting claw, a first linear drive, and a connecting member. The rotary drive is connected to the first support and has an upward output shaft. The limiting claw is connected to the output shaft of the rotary drive and is driven by the rotary drive to move closer to or away from the resting part. The connecting member is located below the resting part and has an upwardly protruding limiting pin. The resting part has a through hole through which the limiting pin can pass. The first linear drive is vertically connected to the lower part of the first support. The connecting member is connected to the output end of the first linear drive and is driven to move up and down by the first linear drive.
[0006] The above solution uses a clamping platform to limit the position of the crash beam and a support part to support the ear plate. Simultaneously, a first linear drive unit raises the connecting component, allowing the limiting pin to pass through the through hole and enter the mounting hole of the ear plate, achieving lateral limiting. A rotational drive unit rotates the limiting claw, allowing it to rotate above the ear plate in the support part, achieving vertical limiting of the ear plate. At this point, welding can be performed between the crash beam and the ear plate. After welding, the first linear drive unit lowers the connecting component, causing the limiting pin to disengage from the mounting hole of the ear plate. Simultaneously, the rotational drive unit moves the limiting claw away from above the support part, allowing the crash beam with the welded ear plate to be easily removed from the clamping platform. Compared with the prior art, the above solution uses a limiting pin and a limiting claw to achieve lateral and vertical limiting of the ear plate, ensuring the accuracy of the position of the anti-collision beam and the ear plate during welding; and after welding is completed, the limiting pin and the limiting claw can be disengaged relative to the ear plate, which facilitates the removal of the anti-collision beam with the ear plate welded on, and has good practicality.
[0007] In an improved embodiment, a second clamping assembly is further included. The base is provided with a second support located on the other side of the clamping platform. The second clamping assembly includes a second linear drive and a limiting rod. The second linear drive is vertically connected to the second support. The limiting rod has a top limiting end extending above the clamping platform. The limiting rod is connected to the output end of the second linear drive and is driven by the second linear drive to raise and lower the top limiting end. Thus, through the driving action of the second linear drive on the limiting rod, the top limiting end is able to abut against or disengage from the upper side of the anti-collision beam on the clamping platform.
[0008] In an improved embodiment, the second bracket is provided with a rotating shaft with the transverse axis as the axis. The middle part of the limiting rod is rotatably connected to the rotating shaft. The top limiting end is located on one side of the rotating shaft, and the end of the limiting rod located on the other side of the rotating shaft is rotatably connected to the output end of the second linear drive. This makes the limiting rod more stable and achieves a more powerful limiting effect on the upper side of the anti-collision beam through the lever principle.
[0009] In an improved embodiment, the second bracket is provided with a pad located on the side of the rotating shaft near the clamping platform. The pad is located below the limiting rod and is used to limit the rotation angle of the limiting rod, thereby preventing the limiting rod from rotating too much and damaging the anti-collision beam.
[0010] In an improved embodiment, a third clamping assembly is further included. The base is provided with a third support located on the other side of the clamping platform. The third clamping assembly includes a third linear drive and a limiting block. The third linear drive is laterally connected to the third support. The limiting block is connected to the output end of the third linear drive and is driven by the third linear drive to move closer to or away from the side of the clamping platform. Thus, through the driving action of the third linear drive on the limiting block, the limiting block can be limited to abutting or disengaging from the side of the anti-collision beam on the clamping platform.
[0011] In an improved embodiment, the clamping platform has a bottom positioning surface that abuts against the bottom wall of the recessed portion of the anti-collision beam, and a side positioning surface that abuts against the inner walls of both sides of the recessed portion of the anti-collision beam, thereby ensuring that the clamping platform provides better positioning for the anti-collision beam.
[0012] In an improved embodiment, there are at least two second brackets and two second clamp groups. The two second brackets are spaced apart, and the two second clamp groups are respectively connected to the two second brackets. Since the anti-collision beam is relatively long, setting two second brackets and two second clamp groups can achieve a better limiting effect on the anti-collision beam. Attached Figure Description
[0013] Figure 1 A schematic diagram of an overall anti-collision beam welding fixture Figure 1 ;
[0014] Figure 2 A schematic diagram of an overall anti-collision beam welding fixture Figure 2 ;
[0015] Figure 3 A schematic diagram of an overall anti-collision beam welding fixture Figure 3 ( Figure 1 (The anti-collision beam and ear plates are hidden on the basis of this).
[0016] Figure 4 for Figure 3 A magnified view of a portion of region A in the middle.
[0017] Explanation of reference numerals in the attached figures.
[0018] 1. Base; 11. Clamping platform; 11a. Bottom positioning surface; 11b. Side positioning surface; 12. First bracket; 12a. Resting part; 12b. Through hole; 13. Second bracket; 13a. Rotating shaft; 13b. Pad; 14. Third bracket; 2. First clamping assembly; 21. Rotary drive component; 22. Limiting claw; 23. First linear drive component; 24. Connecting component; 25. Limiting pin; 3. Second clamping assembly; 31. Second linear drive component; 32. Limiting rod; 32a. Top limiting end; 4. Third clamping assembly; 41. Third linear drive component; 42. Limiting block. Detailed Implementation
[0019] It should be understood by those skilled in the art that the following embodiments are merely illustrative of the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0020] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0021] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0022] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] Please see Figures 1-4 An embodiment of this utility model provides a welding fixture for a crash beam, including a base 1 and a first clamping assembly 2. The base 1 is provided with a clamping platform 11 that can be inserted into the recess of the crash beam, and a first support 12 located on one side of the clamping platform 11. The upper part of the first support 12 is provided with a resting part 12a. The first clamping assembly 2 includes a rotary drive 21, a limiting claw 22, a first linear drive 23, and a connecting member 24. The rotary drive 21 is connected to the first support 12 and has an upward output shaft. The limiting claw 22 is connected to the output shaft of the rotary drive 21 and is driven by the rotary drive 21 to move closer to or away from the resting part 12a. The connecting member 24 is located below the resting part 12a and is provided with an upwardly protruding limiting pin 25. The resting part 12a is provided with a through hole 12b through which the limiting pin 25 can pass. The first linear drive 23 is vertically connected to the lower part of the first support 12. The connecting member 24 is connected to the output end of the first linear drive 23 and is driven by the first linear drive 23 to move up and down.
[0024] The above solution uses the clamping platform 11 to limit the anti-collision beam, and the resting part 12a to support the ear plate. At the same time, the first linear drive 23 drives the connecting part 24 to rise, so that the limiting pin 25 passes through the through hole 12b and enters the mounting hole of the ear plate to achieve a lateral limiting effect. The rotation drive 21 drives the limiting claw 22 to rotate, so that the limiting claw 22 can rotate to the top of the ear plate of the resting part 12a to achieve a vertical limiting effect on the ear plate. At this time, the anti-collision beam and the ear plate can be welded. After the welding is completed, the first linear drive 23 can drive the connecting part 24 to fall, and the limiting pin 25 will disengage from the mounting hole of the ear plate. At the same time, the rotation drive 21 drives the limiting claw 22 to move away from the top of the resting part 12a. At this time, the anti-collision beam with the ear plate welded can be easily removed from the clamping platform 11. Compared with the prior art, the above solution's placement part 12a achieves lateral and vertical positioning of the ear plate through the limiting pin 25 and the limiting claw 22, ensuring the positional accuracy of the anti-collision beam and the ear plate during welding; and after welding is completed, the limiting pin 25 and the limiting claw 22 can be disengaged relative to the ear plate, making it easy to remove the anti-collision beam with the ear plate welded on, thus having good practicality.
[0025] In this embodiment, the first bracket 12 is located on the right side of the clamping platform 11. The rotary drive 21 can be a motor or rotary drive with an upward output axis. The body of the rotary drive 21 is mounted on the upper part of the first bracket 12. One end of the limiting claw 22 is connected to the output shaft of the rotary drive 21, and the other end is bent downwards. So that when the rotary drive 21 drives the limiting claw 22 to rotate, the downwardly bent end of the limiting claw 22 can move into or out of the upper part of the resting part 12a. The first linear drive 23 can be a cylinder or electric cylinder with an upward-pointing cylinder rod. The body of the first linear drive 23 is mounted on the lower part of the first bracket 12, and the connecting member 24 is arranged laterally and connected to the cylinder rod of the first linear drive 23.
[0026] As an improvement to this embodiment, a second clamping assembly 3 is also included. The base 1 is provided with a second support 13 located on the left side of the clamping platform 11. The second clamping assembly 3 includes a second linear drive member 31 and a limiting rod 32. The second linear drive member 31 is vertically connected to the second support 13. The limiting rod 32 has a top limiting end 32a extending above the clamping platform 11. The limiting rod 32 is connected to the output end of the second linear drive member 31 and is driven by the second linear drive member 31 to realize the lifting and lowering of the top limiting end 32a. Thus, through the driving action of the second linear drive member 31 on the limiting rod 32, the top limiting end 32a is able to abut against or disengage from the upper side of the anti-collision beam on the clamping platform 11.
[0027] More specifically, the second linear drive 31 is preferably a cylinder or an electric cylinder. The body of the second linear drive 31 is vertically connected to the second bracket 13, and the cylinder rod of the second linear drive 31 is set upward. The second bracket 13 is provided with a rotating shaft 13a with the transverse axis as the axis. The middle part of the limiting rod 32 is rotatably connected to the rotating shaft 13a. The top limiting end 32a is located on the right side of the rotating shaft 13a. The left end of the limiting rod 32 is rotatably connected to the output end of the second linear drive 31, thereby achieving a more powerful limiting effect of the top limiting end 32a on the upper side of the anti-collision beam through the lever principle.
[0028] Furthermore, the second bracket 13 is provided with a pad 13b located on the side of the rotating shaft 13a near the clamping platform 11. The pad 13b can be made of flexible material such as rubber. The pad 13b is located below the limiting rod 32 and is used to limit the rotation angle of the limiting rod 32, thereby preventing the limiting rod 32 from rotating too much and causing damage to the anti-collision beam.
[0029] As another improvement to this embodiment, a third clamping assembly 4 is also included. The base 1 is provided with a third support 14 located on the other side of the clamping platform 11. The third clamping assembly 4 includes a third linear drive 41 and a limiting block 42. The third linear drive 41 is connected laterally to the third support 14. The limiting block 42 is connected to the output end of the third linear drive 41 and is driven by the third linear drive 41 to move closer to or away from the side of the clamping platform 11. Thus, through the driving action of the third linear drive 41 on the limiting block 42, the limiting block 42 is limited to abutting or disengaging from the side of the anti-collision beam on the clamping platform 11. Similarly, the third linear drive 41 can be a cylinder or an electric cylinder, which will not be described in detail here.
[0030] In this embodiment, the clamping platform 11 has a bottom positioning surface 11a that abuts against the bottom wall of the recess of the anti-collision beam, and a side positioning surface 11b that abuts against the inner walls of both sides of the recess of the anti-collision beam, thereby ensuring that the clamping platform 11 has a better positioning effect on the anti-collision beam.
[0031] In this embodiment, there are at least two second brackets 13 and two clamping groups 3. The two second brackets 13 are spaced apart and their positions correspond to the front and rear of the clamping platform 11, respectively. The two second clamping groups 3 are connected to the two second brackets 13. Since the anti-collision beam is relatively long, setting two second brackets 13 and two second clamping groups 3 can achieve a better limiting effect on the anti-collision beam.
[0032] It should be noted that in the description of this application, the terms "inner" and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. All directional indications (such as up, down, left, right, front, back, inner, and outer) are only used to explain the relative positional relationships and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0033] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A welding fixture for anti-collision beams, characterized in that, The device includes a base (1) and a first clamping assembly (2). The base (1) has a clamping platform (11) that can be engaged with the recess of the anti-collision beam, and a first support (12) located on one side of the clamping platform (11). The upper part of the first support (12) has a resting part (12a). The first clamping assembly (2) includes a rotary drive (21), a limiting claw (22), a first linear drive (23), and a connecting member (24). The rotary drive (21) is connected to the first support (12) and has an upward output shaft. The limiting claw (22) is connected to the rotary drive. The output shaft of the moving part (21) is driven by the rotary drive (21) to move closer to or away from the resting part (12a). The connecting part (24) is located below the resting part (12a) and is provided with an upwardly protruding limiting pin (25). The resting part (12a) is provided with a through hole (12b) through which the limiting pin (25) can pass. The first linear drive (23) is vertically connected to the lower part of the first bracket (12). The connecting part (24) is connected to the output end of the first linear drive (23) and is driven to rise and fall by the first linear drive (23).
2. The anti-collision beam welding fixture according to claim 1, characterized in that, It also includes a second clamping assembly (3), the base (1) is provided with a second bracket (13) located on the other side of the clamping platform (11), the second clamping assembly (3) includes a second linear drive (31) and a limiting rod (32), the second linear drive (31) is vertically connected to the second bracket (13), the limiting rod (32) has a top limiting end (32a) extending to the top of the clamping platform (11), the limiting rod (32) is connected to the output end of the second linear drive (31) and driven by the second linear drive (31) to realize the lifting and lowering of the top limiting end (32a).
3. The anti-collision beam welding fixture according to claim 2, characterized in that, The second bracket (13) is provided with a rotating shaft (13a) with the transverse axis as the axis. The middle part of the limiting rod (32) is rotatably connected to the rotating shaft (13a). The top limiting end (32a) is located on one side of the rotating shaft (13a). The end of the limiting rod (32) located on the other side of the rotating shaft (13a) is rotatably connected to the output end of the second linear drive (31).
4. The anti-collision beam welding fixture according to claim 3, characterized in that, The second bracket (13) is provided with a pad (13b) located on the side of the rotating shaft (13a) near the clamp (11). The pad (13b) is located below the limiting rod (32) and is used to limit the rotation angle of the limiting rod (32).
5. The anti-collision beam welding fixture according to claim 1, characterized in that, It also includes a third clamping assembly (4), the base (1) is provided with a third support (14) located on the other side of the clamping platform (11), the third clamping assembly (4) includes a third linear drive (41) and a limiting block (42), the third linear drive (41) is connected to the third support (14) in the transverse direction, and the limiting block (42) is connected to the output end of the third linear drive (41) and is driven by the third linear drive (41) to approach or move away from the side of the clamping platform (11).
6. The anti-collision beam welding fixture according to any one of claims 1-5, characterized in that, The clamp (11) has a bottom positioning surface (11a) that abuts against the bottom wall of the anti-collision beam recess, and a side positioning surface (11b) that abuts against the inner walls of both sides of the anti-collision beam recess.
7. The anti-collision beam welding fixture according to any one of claims 2-4, characterized in that, There are at least two second brackets (13) and two second clamp groups (3), with the two second brackets (13) spaced apart and the two second clamp groups (3) connected to the two second brackets (13) respectively.