Transverse deformation device for beam welding

The support plate and limit mechanism of the crossbeam welding anti-deformation device can realize automatic correction of the crossbeam, solve the problem of deformation of the roller beam after welding, improve production accuracy and reduce costs.

CN223394584UActive Publication Date: 2025-09-30ZHEJIANG LEAPENERGY TECH CO LTD +1
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Patent Information

Application Number
CN202422023134.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-09-30
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

In the prior art, roller beams are prone to deformation after welding, requiring manual repair, which increases costs.

Method used

Provided is a beam welding anti-deformation device, comprising a workbench, a lifting mechanism, a limiting mechanism and a support plate. The support plate abuts against the anti-deformation surface of the limiting mechanism under the push of the lifting mechanism, thereby achieving automatic correction of the beam and offsetting welding deformation.

Benefits of technology

Effectively solve the deformation of beams after welding, ensure product consistency, avoid manual rework, and reduce production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of beam welding, in particular to a beam welding anti-deformation device. The beam welding reversible deformation device comprises a workbench, a jacking mechanism, a limiting mechanism and a supporting plate. The supporting plate is arranged on the workbench, the supporting plate and the workbench are arranged in a spaced mode, and the supporting plate is used for being inserted into the cross beam and abutting against at least part of the inner wall of the cross beam. The limiting mechanism is installed on the workbench and provided with an anti-deformation face, and the anti-deformation face is located on the side, away from the workbench, of the cross beam. The jacking mechanism is arranged on the side, away from the reversible deformation face, of the cross beam, one end of the jacking mechanism is connected with the workbench, and the other end of the jacking mechanism can apply force to the supporting plate and the cross beam to push the supporting plate and the cross beam to deform so that the surface of the cross beam can be attached to the reversible deformation face. According to the transverse beam welding anti-deformation device, the problems that an existing rolling beam is prone to deformation after being welded, and manual repair is needed are solved.
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Description

Technical Field

[0001] The present application relates to the technical field of beam welding, and in particular to a beam welding anti-deformation device. Background Art

[0002] With the rapid development of new energy vehicles, battery technology is also constantly advancing. To enhance the market competitiveness of battery packs, the battery pack casing has been transformed from a traditional aluminum frame design to a high-strength steel one-piece roll-welded design to achieve higher strength performance and lower costs.

[0003] However, the roller beam in the related technology usually requires the interior to be set into a space shape, which results in that when the roller beam is welded to the lifting lug, the welding surface of the roller beam will bend and deform toward the lifting lug due to heat, reducing the production accuracy of the roller beam, and requiring a large amount of manpower to be added at the back end for repair and correction, which greatly increases the cost. Utility Model Content

[0004] Based on this, it is necessary to provide a beam welding anti-deformation device to solve the problem that the existing roller beam is easily deformed after welding and needs manual repair.

[0005] The present application provides a beam welding anti-deformation device, which includes a workbench, a lifting mechanism, a limiting mechanism and a support plate, wherein the support plate is placed on the workbench and spaced apart from the workbench, and the support plate is used to be inserted into the beam and abut against at least part of the inner wall of the beam; the limiting mechanism is installed on the workbench, and an anti-deformation surface is provided on the limiting mechanism, and the anti-deformation surface is located on the side of the beam away from the workbench; the lifting mechanism is provided on the side of the beam away from the anti-deformation surface, and one end of the lifting mechanism is connected to the workbench, and the other end can apply force to the support plate and the beam to push the support plate and the beam to deform, so that the surface of the beam is attached to the anti-deformation surface.

[0006] In one embodiment, the output end of the lifting mechanism passes through a side surface of the beam and abuts against the support plate.

[0007] In one embodiment, the limiting mechanism includes a limiting member, a locking member and a support member, the support member is fixedly connected to the workbench, and a sliding groove is provided on the support member; the limiting member and the locking member are both arranged on the side of the beam away from the workbench, the limiting member passes through the sliding groove and is movably connected to the support member, the locking member passes through the support member and extends into the sliding groove, and the locking member is respectively threadedly engaged with the support member and the limiting member, and, as the locking member rotates, the locking member can drive the limiting member to slide in the sliding groove; wherein, the side surface of the limiting member close to the workbench forms the anti-deformation surface.

[0008] In one embodiment, there are two support members, and the two support members are respectively in abutment with the side surfaces on both sides of the width of the beam.

[0009] In one embodiment, there are multiple limiting mechanisms, and the multiple limiting mechanisms are spaced apart along the length direction of the beam; and / or, there are multiple lifting mechanisms, and the multiple lifting mechanisms are spaced apart along the length direction of the beam.

[0010] In one embodiment, the beam welding anti-deformation device further includes a positioning mechanism, which is installed on the workbench and is used to position the support plate and the beam.

[0011] In one embodiment, the positioning mechanism is provided at opposite ends of the support plate, and the positioning mechanism includes a positioning block and a positioning column. The positioning block is connected to the workbench, and the positioning block at least partially cooperates with the end stop of the beam, and the positioning column protrudes and is connected to the end of the positioning block away from the workbench; both ends of the support plate at least partially protrude from the two ends of the beam, and the part of the support plate protruding from the beam is provided with a positioning groove, and the positioning column is inserted into the positioning groove.

[0012] In one embodiment, the beam welding anti-deformation device further includes a clamping mechanism, which is installed on the workbench and is used to press the support plate and the beam against the positioning mechanism.

[0013] In one embodiment, the clamping mechanism includes a driving member and a pressure block, the driving member is installed on the workbench, the pressure block is located on the side of the support plate away from the positioning mechanism, and the pressure block is connected to the output end of the driving member; wherein, the pressure block can contact and squeeze the beam or the support plate under the drive of the driving member.

[0014] In one embodiment, there are multiple cross beams, and the multiple cross beams are spaced apart along their width direction; wherein the number of the support plates and the number of the cross beams are arranged in a one-to-one correspondence.

[0015] Compared with the prior art, the crossbeam welding anti-deformation device provided by the present application, by arranging a support plate inside the crossbeam, the support plate can play a supporting role for the crossbeam, so that the support plate and the crossbeam can be deformed as a whole under the push of the jacking mechanism. In addition, by arranging an anti-deformation surface on the limiting mechanism, the crossbeam can abut against the anti-deformation surface under the push of the jacking mechanism and form the same deformation as the anti-deformation surface, and this deformation can offset the deformation of the crossbeam caused by welding after the crossbeam is welded, thereby realizing automatic correction of the crossbeam. In this way, the deformation of the crossbeam after welding can be effectively solved, the consistency of the product can be ensured, and subsequent manual rework can be avoided, thereby greatly reducing production costs. In addition, the structure of the crossbeam welding anti-deformation device is relatively simple, which can reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic structural diagram of a beam welding anti-deformation device according to an embodiment of the present application;

[0018] Figure 2 A front view of a beam welding anti-deformation device according to an embodiment of the present application;

[0019] Figure 3 A partial schematic diagram of a beam welding anti-deformation device according to an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the assembly of the beam and support plate of an embodiment provided in this application.

[0021] The symbols in the figure mean the following:

[0022] 100. Anti-deformation device for beam welding; 10. Workbench; 20. Lifting mechanism; 30. Limiting mechanism; 301. Anti-deformation surface; 302. Slide; 31. Limiting member; 32. Locking member; 33. Support member; 40. Support plate; 401. Positioning groove; 50. Positioning mechanism; 51. Positioning block; 52. Positioning column; 60. Clamping mechanism; 61. Driving member; 62. Pressing block; 70. Pneumatic switch; 200. Beam; 300. Lifting ear. DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0026] In this application, unless otherwise expressly specified or limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Furthermore, a first feature being “above,” “above,” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below,” “below,” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0028] With the rapid development of new energy vehicles, battery technology is also constantly advancing. To enhance the market competitiveness of battery packs, the battery pack casing has been transformed from a traditional aluminum frame design to a high-strength steel one-piece roll-welded design to achieve higher strength performance and lower costs.

[0029] However, the roller beam in the related technology usually requires the interior to be set into a space shape, which results in that when the roller beam is welded to the lifting lug, the welding surface of the roller beam will bend and deform toward the lifting lug due to heat, reducing the production accuracy of the roller beam, and requiring a large amount of manpower to be added at the back end for repair and correction, which greatly increases the cost.

[0030] See also Figure 1-Figure 4 To address the problem that conventional roll-formed beams are prone to deformation after welding and require manual repair, the present application provides a beam welding anti-deformation device 100. The beam welding anti-deformation device 100 is primarily used to adjust the welding position of a beam 200 to improve the forming accuracy of the beam 200. The beam 200 is typically a roll-formed beam structure with a hollow interior.

[0031] Specifically, the beam welding anti-deformation device 100 provided in the present application includes a workbench 10, a lifting mechanism 20, a limiting mechanism 30, and a support plate 40. The support plate 40 is placed on the workbench 10 and spaced apart from the workbench 10, and is used to be inserted into the beam 200 and abut against at least part of the inner wall of the beam 200. The limiting mechanism 30 is installed on the workbench 10, and is provided with an anti-deformation surface 301. The anti-deformation surface 301 is located on the side of the beam 200 away from the workbench 10. The lifting mechanism 20 is provided on the side of the beam 200 away from the anti-deformation surface 301, and one end of the lifting mechanism 20 is connected to the workbench 10, and the other end can apply force to the support plate 40 and the beam 200 to push the support plate 40 and the beam 200 to deform, so that the surface of the beam 200 is attached to the anti-deformation surface 301.

[0032] It is understandable that the present application provides a support plate 40 in the crossbeam 200, which can support the crossbeam 200, so that the support plate 40 and the crossbeam 200 can be deformed as a whole under the push of the lifting mechanism 20. In addition, by providing an anti-deformation surface 301 on the limiting mechanism 30, the crossbeam 200 can abut against the anti-deformation surface 301 under the push of the lifting mechanism 20, and form the same deformation as the anti-deformation surface 301, and this deformation can offset the deformation of the crossbeam 200 caused by welding after the crossbeam 200 is welded, thereby realizing automatic correction of the crossbeam 200. In this way, the deformation of the crossbeam 200 after welding can be effectively solved, the consistency of the product can be ensured, and subsequent manual rework can be avoided, thereby greatly reducing production costs. In addition, the structure of the crossbeam welding anti-deformation device 100 is relatively simple, which can reduce manufacturing costs.

[0033] It should be noted that the anti-deformation surface 301 is usually an arc-shaped surface, and its curvature can be obtained according to the deformation curvature generated after the existing crossbeam 200 and the lifting lug 300 are welded, which will not be described in detail here.

[0034] To facilitate deformation of the support plate 40, in one embodiment, the support plate 40 is preferably configured as an aluminum plate. Aluminum plates have excellent plastic deformation capabilities, thereby reducing the difficulty of driving the jacking mechanism 20. Furthermore, the aluminum plate can stably adhere to the inner wall of the hollow crossbeam 200. After the aluminum plate deforms with the crossbeam 200, the deformation and wear of the aluminum plate are relatively minor, and the support effect for the crossbeam 200 can still be achieved. Therefore, the aluminum plate can be reused to reduce costs.

[0035] Furthermore, in order to ensure the deformation accuracy of the crossbeam 200, the support plate 40 can be replaced when the thickness of the support plate 40 is greater than 2mm. In addition, since the support plate 40 will have a certain curvature when it is reused, in order to reduce the difficulty of inserting the support plate 40 into the crossbeam 200, Figure 4 As shown, the thickness of the support plate 40 can be set to be smaller than the thickness of the inner cavity of the beam 200. In this case, the output end of the lifting mechanism 20 can pass through a side surface of the beam 200 and abut against the support plate 40.

[0036] Because the lifting lug 300 and other structures are typically welded to one side of the beam 200, meaning only one side of the beam 200 is subject to welding deformation, this embodiment, by passing the output end of the lifting mechanism 20 through the side of the beam 200 not involved in the welding, can prevent deformation of the side not involved in the welding during the process of the lifting mechanism 20 pushing the beam 200 and support plate 40 to deform, while also meeting the deformation requirements of the side of the beam 200 involved in the welding and the support plate 40. This not only greatly reduces the difficulty of deformation of the beam 200, but also effectively improves the accuracy of the beam 200.

[0037] Specifically, the lifting mechanism 20 can be configured as a lifting cylinder or a driving motor, etc.

[0038] Furthermore, in one embodiment, if Figure 2 As shown, there are multiple lifting mechanisms 20, and the multiple lifting mechanisms 20 are spaced apart along the length of the beam 200. This allows for adjustment of the anti-deformation of the beam 200 along its length, ensuring the anti-deformation effect of the beam 200. A pneumatic switch 70 can be provided on the workbench 10 to connect the multiple lifting mechanisms 20, thereby achieving synchronous actuation of the multiple lifting mechanisms 20.

[0039] In one embodiment, as 1 and Figure 3As shown, the limiting mechanism 30 includes a limiting member 31, a locking member 32, and a support member 33. The support member 33 is fixedly connected to the workbench 10 and has a sliding groove 302 formed thereon. The limiting member 31 and the locking member 32 are both located on the side of the crossbeam 200 away from the workbench 10. The limiting member 31 passes through the sliding groove 302 and is movably connected to the support member 33. The locking member 32 passes through the support member 33 and extends into the sliding groove 302. The locking member 32 is threadedly engaged with the support member 33 and the limiting member 31, respectively. As the locking member 32 rotates, the locking member 32 can drive the limiting member 31 to slide within the sliding groove 302. The side surface of the limiting member 31 on the side closest to the workbench 10 forms an anti-deformation surface 301.

[0040] The locking member 32 connects the limiting member 31 and the supporting member 33, which not only ensures the connection effect between the limiting member 31 and the supporting member 33, but also the locking member 32 can drive the limiting member 31 to move in the sliding groove 302, thereby adjusting the distance between the limiting member 31 and the beam 200, thereby improving the limiting effect on the beam 200.

[0041] Specifically, after the crossbeam 200 and the support plate 40 are placed on the workbench 10, the locking member 32 can be operated to drive the limiting member 31 toward the crossbeam 200, so that the anti-deformation surface 301 on the limiting member 31 at least partially stops on the surface of the crossbeam 200. In this way, when the crossbeam 200 is deformed under the push of the lifting mechanism 20, the deformation process of the crossbeam 200 is more stable and reliable.

[0042] Furthermore, in one embodiment, there are two support members 33, and the two support members 33 respectively abut against the side surfaces on both sides of the width of the beam 200. In other words, each limiting mechanism 30 is provided with two support members 33, and the support members 33 stop the ends of the width of the beam 200, thereby preventing the beam 200 from shaking during the deformation process, thereby improving the anti-deformation accuracy of the beam 200.

[0043] In one embodiment, if Figure 2 As shown, there are multiple limiting mechanisms 30, which are spaced apart along the length of the beam 200. In this way, the multiple limiting mechanisms 30 are used to stop the beam 200 in the length direction, thereby ensuring the anti-deformation effect of the beam 200.

[0044] In one embodiment, if Figure 3 As shown, the beam welding anti-deformation device 100 further includes a positioning mechanism 50, which is mounted on the workbench 10 and is used to position the support plate 40 and the beam 200. In this way, by providing the positioning mechanism 50, it is possible to ensure that the positions of the support plate 40 and the beam 200 on the workbench 10 remain consistent.

[0045] Furthermore, in one embodiment, the positioning mechanisms 50 are provided at opposite ends of the support plate 40 , that is, each beam 200 and the support plate 40 are positioned by two positioning mechanisms 50 , and the positioning effect is more reliable.

[0046] In one embodiment, if Figure 3 As shown, the positioning mechanism 50 includes a positioning block 51 and a positioning post 52. The positioning block 51 is connected to the workbench 10 and at least partially engages with the end stop of the beam 200. The positioning post 52 protrudes from and is connected to the end of the positioning block 51 away from the workbench 10. Both ends of the support plate 40 at least partially protrude from the ends of the beam 200. The portion of the support plate 40 protruding from the beam 200 is defined with a positioning slot 401, into which the positioning post 52 is inserted.

[0047] In this embodiment, the provision of positioning blocks 51 not only provides a stop and positioning function at both ends of the crossbeam 200 along its length, thereby improving the stability of the crossbeam 200 when mounted on the workbench 10, but also provides a height difference between the crossbeam 200 and the workbench 10, facilitating the arrangement of the lifting mechanism 20. Furthermore, the provision of positioning posts 52 on the positioning blocks 51 allows the support plate 40 to be positioned by cooperating with the positioning slots 401 on the support plate 40. This significantly reduces the probability of movement of the support plate 40 or the crossbeam 200 during deformation.

[0048] In one embodiment, if Figure 3 As shown, the beam welding anti-deformation device 100 further includes a clamping mechanism 60, which is mounted on the workbench 10 and is used to press the support plate 40 and the beam 200 against the positioning mechanism 50. In this way, the stability of the beam 200 and the support plate 40 during the deformation process can be further improved.

[0049] Furthermore, in one embodiment, the clamping mechanism 60 includes a driver 61 and a pressure block 62. The driver 61 is mounted on the workbench 10, and the pressure block 62 is located on the side of the support plate 40 away from the positioning mechanism 50. The pressure block 62 is connected to the output end of the driver 61. The pressure block 62 is driven by the driver 61 to contact and compress the beam 200 or the support plate 40. As such, the overall structure of the clamping mechanism 60 is simple, yet it can reliably clamp the support plate 40 or the beam 200.

[0050] Specifically, the driving member 61 is configured as a driving cylinder.

[0051] In one embodiment, if Figure 1 As shown, there are multiple cross beams 200, and the multiple cross beams 200 are spaced apart along the width direction thereof. The number of support plates 40 and the number of cross beams 200 are arranged in a one-to-one correspondence.

[0052] That is, in the present application, the workbench 10 can meet the requirements of simultaneous processing of multiple beams 200, thereby greatly improving the working efficiency of the beam welding anti-deformation device 100. For example, two beams 200 are specifically provided in this embodiment. Of course, three, four, or more beams 200 can also be provided. It is only necessary to add a corresponding number of positioning mechanisms 50, clamping mechanisms 60, lifting mechanisms 20, and limiting mechanisms 30 to the workbench 10.

[0053] When there are multiple crossbeams 200 , a clamping mechanism 60 may be provided between two adjacent crossbeams 200 to further enhance the stability of the crossbeams 200 .

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A beam welding anti-deformation device, characterized in that: The invention comprises a workbench (10), a lifting mechanism (20), a limiting mechanism (30) and a support plate (40), wherein the support plate (40) is placed on the workbench (10) and spaced apart from the workbench (10), and the support plate (40) is used to be inserted into the crossbeam (200) and abut against at least part of the inner wall of the crossbeam (200); The limiting mechanism (30) is installed on the workbench (10), and an anti-deformation surface (301) is provided on the limiting mechanism (30), and the anti-deformation surface (301) is located on a side of the crossbeam (200) away from the workbench (10); The lifting mechanism (20) is arranged on a side of the beam (200) away from the anti-deformation surface (301), and one end of the lifting mechanism (20) is connected to the workbench (10), and the other end can apply force to the support plate (40) and the beam (200) to push the support plate (40) and the beam (200) to deform, so that the surface of the beam (200) is attached to the anti-deformation surface (301).

2. The beam welding anti-deformation device according to claim 1, characterized in that: The output end of the lifting mechanism (20) passes through a side surface of the crossbeam (200) and abuts against the support plate (40).

3. The beam welding anti-deformation device according to claim 1, characterized in that: The limiting mechanism (30) includes a limiting member (31), a locking member (32) and a supporting member (33); the supporting member (33) is fixedly connected to the workbench (10), and a sliding groove (302) is provided on the supporting member (33); The limiting member (31) and the locking member (32) are both arranged on a side of the crossbeam (200) away from the workbench (10); the limiting member (31) passes through the slide groove (302) and is movably connected to the support member (33); the locking member (32) passes through the support member (33) and extends into the slide groove (302); and the locking member (32) is threadedly matched with the support member (33) and the limiting member (31) respectively, and, as the locking member (32) rotates, the locking member (32) can drive the limiting member (31) to slide in the slide groove (302); Wherein, the side surface of the limiting member (31) close to the workbench (10) forms the anti-deformation surface (301).

4. The beam welding anti-deformation device according to claim 3, characterized in that: The number of the support members (33) is two, and the two support members (33) are respectively in abutment with the side surfaces on both sides of the width of the crossbeam (200).

5. The beam welding anti-deformation device according to claim 3, characterized in that: There are multiple limiting mechanisms (30), and the multiple limiting mechanisms (30) are spaced apart and distributed along the length direction of the beam (200); And / or, the number of the jacking mechanisms (20) is multiple, and the multiple jacking mechanisms (20) are spaced apart along the length direction of the beam (200).

6. The beam welding anti-deformation device according to claim 1, characterized in that: The crossbeam welding anti-deformation device further comprises a positioning mechanism (50), which is installed on the workbench (10) and is used to position the support plate (40) and the crossbeam (200).

7. The beam welding anti-deformation device according to claim 6, characterized in that: The positioning mechanism (50) is provided at opposite ends of the support plate (40), and the positioning mechanism (50) comprises a positioning block (51) and a positioning column (52), wherein the positioning block (51) is connected to the workbench (10), and the positioning block (51) at least partially cooperates with the end stop of the crossbeam (200), and the positioning column (52) protrudes and is connected to an end of the positioning block (51) away from the workbench (10); Both ends of the support plate (40) at least partially protrude from both ends of the crossbeam (200), and a positioning groove (401) is provided in the portion of the support plate (40) protruding from the crossbeam (200), and the positioning column (52) is inserted into the positioning groove (401).

8. The beam welding anti-deformation device according to claim 6, characterized in that: The crossbeam welding anti-deformation device further comprises a clamping mechanism (60), which is mounted on the workbench (10) and is used to press the support plate (40) and the crossbeam (200) against the positioning mechanism (50).

9. The beam welding anti-deformation device according to claim 8, characterized in that: The clamping mechanism (60) includes a driving member (61) and a pressing block (62), wherein the driving member (61) is mounted on the workbench (10), the pressing block (62) is located on a side of the support plate (40) away from the positioning mechanism (50), and the pressing block (62) is connected to an output end of the driving member (61); Wherein, the pressing block (62) can contact and press the crossbeam (200) or the support plate (40) under the driving of the driving member (61).

10. The beam welding anti-deformation device according to any one of claims 1 to 9, characterized in that: There are multiple crossbeams (200), and the multiple crossbeams (200) are arranged at intervals along their own width direction; wherein the number of the support plates (40) and the number of the crossbeams (200) are arranged in a one-to-one correspondence.