Box welding clamp

Abstract

The utility model provides a box welding clamp. The box welding clamp comprises a workbench assembly. The clamping assembly is connected with the workbench assembly, the clamping assembly comprises a first clamping structure and a second clamping structure, the first clamping structure comprises a first clamping part, the second clamping structure comprises a second clamping part, and a plate body to be welded is arranged between the first clamping part and the second clamping part; and the angle limiting assembly is connected with the workbench assembly, the angle limiting assembly comprises a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are arranged on the inner side and the outer side of the to-be-welded box correspondingly. According to the technical scheme, the problem that in the metal box body welding process in the prior art, due to the fact that plates are not easy to align, the welding seam quality is poor is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of welding processing, and in particular to a box welding fixture. Background Art

[0002] Metal boxes are widely used in industrial production, such as for storing and transporting parts. During the manufacturing process, metal boxes are often welded.

[0003] Generally, during the metal box welding process, multiple metal plates of appropriate sizes are usually selected, and then the workers hold the plates and welding guns and weld the plates together in turn.

[0004] In the prior art, when the plate area is large and the thickness is small, the plate is easily deformed, the sides of two adjacent plates are difficult to align, the operation is difficult, and the quality of the weld is poor, such as CN110900020A. Utility Model Content

[0005] A technical problem to be solved by the present application is that during the welding process of a metal box, there is a problem of poor weld quality due to difficulty in aligning the plates.

[0006] In order to solve the above technical problems, the present application provides a box welding fixture.

[0007] According to the present application, a box welding fixture is provided, which includes: a workbench assembly; a clamping assembly, which is connected to the workbench assembly, and the clamping assembly includes a first clamping structure and a second clamping structure, the first clamping structure includes a first clamping part, the second clamping structure includes a second clamping part, and the plate to be welded is arranged between the first clamping part and the second clamping part; an angle limiting assembly, which is connected to the workbench assembly, and the angle limiting assembly includes a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure are respectively arranged on the inner and outer sides of the box to be welded.

[0008] In some embodiments, the first clamping structure also includes a first mounting seat and a first connecting portion, the first connecting portion is movably connected to the first mounting seat, the first connecting portion is connected to the first clamping portion, and the first clamping portion has a clamping state close to the second clamping portion and a to-be-clamped state away from the second clamping portion.

[0009] In some embodiments, the second clamping structure also includes a second mounting seat and a second connecting portion, the second connecting portion is movably connected to the second mounting seat, the second connecting portion is connected to the second clamping portion, and the second clamping portion has a clamping state close to the first clamping portion and a to-be-clamped state away from the first clamping portion.

[0010] In some embodiments, the first clamping structure includes multiple first clamping structures, which are arranged one-to-one corresponding to the outer side walls of the box to be welded, and the second clamping structure includes multiple second clamping parts, which are arranged corresponding to the inner side walls of the box to be welded.

[0011] In some embodiments, the first clamping portion has a plurality of first hollow portions, and the second clamping portion has a plurality of second hollow portions.

[0012] In some embodiments, the first limiting structure includes a third mounting seat and a fourth mounting seat, the third mounting seat has a first limiting portion, and the fourth mounting seat has a second limiting portion, and the angle between the first limiting portion and the second limiting portion is the same as the inner angle of the box to be welded.

[0013] In some embodiments, the second limiting structure includes a fifth mounting seat and a third limiting portion, the third limiting portion is movably connected to the fifth mounting seat, and the side of the third limiting portion away from the fifth mounting seat has an angle the same as the inner corner of the box to be welded, and the third limiting portion has a limiting state away from the fifth mounting seat and a to-be-limited state close to the fifth mounting seat.

[0014] In some embodiments, the box welding fixture also includes a clamping assembly, which includes a sixth mounting seat and a clamping structure. The sixth mounting seat is arranged opposite to the outer wall of the box to be welded, and the clamping structure is rotatably connected to the sixth mounting seat. The clamping structure has a clamping state close to the box to be welded and a to-be-clamped state away from the box to be welded.

[0015] In some embodiments, the sixth mounting seat includes a negative pressure portion connected to the outer side wall of the box to be welded.

[0016] In some embodiments, the workbench assembly has a plurality of mounting holes, and the plurality of mounting holes are arranged in an array.

[0017] Through the above technical solution, the box welding fixture provided by the present application places multiple plates to be welded between the first clamping part and the second clamping part. The first clamping part and the second clamping part clamp the plates to be welded to prevent deformation of the plates. The first limiting structure and the second limiting structure limit the position of the two adjacent plates to ensure that the angle between the two adjacent plates meets the processing requirements. The side panels of the box are welded. After the box welding is completed, a column with a stable structure and not easy to deform is formed. Then, the top and bottom surfaces of the box are welded. The technical solution of the present application effectively solves the problem of poor weld quality caused by difficult alignment of the plates during the metal box welding process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0019] Figure 1 A schematic structural diagram of a box welding fixture disclosed in Example 1 of the present application is shown;

[0020] Figure 2 Shown Figure 1 Schematic diagram of the main structure of the box welding fixture;

[0021] Figure 3 Shown Figure 1 Schematic diagram of the top view of the box welding fixture when welding the side panels;

[0022] Figure 4 Shown Figure 1 Schematic diagram of the top view of the box welding fixture when welding the bottom plate.

[0023] Description of reference numerals:

[0024] 10. Workbench assembly; 11. Mounting hole; 20. Clamping assembly; 21. First clamping structure; 211. First clamping portion; 212. First mounting seat; 213. First connecting portion; 22. Second clamping structure; 221. Second clamping portion; 222. Second mounting seat; 223. Second connecting portion; 30. Angle limiting assembly; 31. First limiting structure; 311. Third mounting seat; 3111. First limiting portion; 312. Fourth mounting seat; 3121. Second limiting portion; 32. Second limiting structure; 321. Fifth mounting seat; 322. Third limiting portion; 40. Pressing assembly. DETAILED DESCRIPTION

[0025] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather encompasses all technical solutions within the scope of the claims.

[0026] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0027] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0028] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0029] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0030] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0032] like Figures 1 to 4As shown, the box welding fixture disclosed in the first embodiment of the present application includes: a workbench assembly 10, a clamping assembly 20 and an angle limiting assembly 30. The clamping assembly 20 is connected to the workbench assembly 10. The clamping assembly 20 includes a first clamping structure 21 and a second clamping structure 22. The first clamping structure 21 includes a first clamping portion 211, and the second clamping structure 22 includes a second clamping portion 221. The plate to be welded is arranged between the first clamping portion 211 and the second clamping portion 221. The angle limiting assembly 30 is connected to the workbench assembly 10. The angle limiting assembly 30 includes a first limiting structure 31 and a second limiting structure 32. The first limiting structure 31 and the second limiting structure 32 are respectively arranged on the inner and outer sides of the box to be welded.

[0033] Using the technical solution of Example 1, multiple plates to be welded are placed between the first clamping portion 211 and the second clamping portion 221. The first clamping portion 211 and the second clamping portion 221 clamp the plates to be welded to prevent deformation of the plates. The first limiting structure 31 and the second limiting structure 32 limit the position of two adjacent plates to ensure that the angle between the two adjacent plates meets the processing requirements. The side panels of the box are welded. After the box is welded, a structurally stable and non-deformable column is formed. The top and bottom surfaces of the box are then welded. The technical solution of Example 1 effectively solves the problem of poor weld quality caused by difficult alignment of the plates during the welding of metal boxes in the prior art.

[0034] like Figures 1 to 3 As shown, in the technical solution of embodiment one, the first clamping structure 21 also includes a first mounting seat 212 and a first connecting portion 213, the first connecting portion 213 is movably connected to the first mounting seat 212, the first connecting portion 213 is connected to the first clamping portion 211, and the first clamping portion 211 has a clamping state close to the second clamping portion 221 and a to-be-clamped state away from the second clamping portion 221. The first clamping part 211 has a plane parallel to the outer surface of the plate to be welded, and the outer surface of the plate to be welded is made to fit the first clamping part 211 by clamping to avoid deformation of the plate to be welded. The first clamping structure 21 also includes a first horizontal driving cylinder, which is fixed on the first mounting seat 212, and its output end is connected to the first clamping part 211. In embodiment 1, the first connecting part 213 includes four, and the four first connecting parts 213 are respectively arranged at the top corners of the first clamping part 211, and the first mounting seat 212 has a first through hole corresponding to the first connecting part 213 one by one. The first connecting part 213 is movably arranged in the first through hole, thereby guiding the movement of the first clamping part 211. The first horizontal driving cylinder realizes the automatic control of the first clamping part 211, reducing the difficulty of operation for the staff.

[0035] like Figures 1 to 3As shown, in the technical solution of embodiment 1, the second clamping structure 22 also includes a second mounting seat 222 and a second connecting portion 223. The second connecting portion 223 is movably connected to the second mounting seat 222, and the second connecting portion 223 is connected to the second clamping portion 221. The second clamping portion 221 has a clamping state close to the first clamping portion 211 and a waiting state away from the first clamping portion 211. The second clamping portion 221 has a plane parallel to the inner surface of the plate to be welded. By clamping, the inner surface of the plate to be welded is made to fit the second clamping portion 221 to avoid deformation of the plate to be welded. The second clamping structure 22 also includes a second horizontal driving cylinder. The second horizontal driving cylinder is fixed to the second mounting seat 222, and its output end is connected to the second clamping portion 221. The second horizontal driving cylinder realizes automatic control of the second clamping portion 221, reducing the difficulty of operation for the staff.

[0036] like Figures 1 to 3 As shown, in the technical solution of Example 1, the first clamping structure 21 includes multiple first clamping structures 21, which are arranged one-to-one with the outer side walls of the box to be welded. The second clamping structure 22 includes multiple second clamping portions 221, which are arranged corresponding to the inner side walls of the box to be welded. In Example 1, a rectangular box is welded. During the welding process, the second mounting base 222 is fixed to a suitable position on the workbench assembly 10. The second mounting base 222 and one of the first clamping structures 21 jointly clamp a plate to be welded to determine the reference position of the box to be welded. The second clamping structure 22 also includes a third horizontal drive cylinder, which is perpendicular to the second horizontal drive cylinder. The third horizontal drive cylinder includes two third horizontal drive cylinders, which are arranged in opposite directions so that the second clamping portion 221 connected to the second horizontal drive cylinder is parallel to the plane where the second mounting seat 222 contacts the plate to be welded. The two second clamping portions 221 connected to the third horizontal drive cylinder are perpendicular to the second clamping portion 221 connected to the second horizontal drive cylinder, so that the second clamping structure 22 simultaneously clamps the inner walls of the four side panels of the rectangular box. The first clamping structure 21 is correspondingly provided with four, which are respectively provided corresponding to the outer walls of the four side panels of the rectangular box. The first clamping structure 21 and the second clamping structure 22 simultaneously clamp the four side panels of the rectangular box, fixing the side panels while preventing them from deformation. During the welding process, the staff only needs to operate the welding gun, thereby reducing the difficulty of operation and improving the quality of the weld.

[0037] like Figures 1 to 3As shown, in the technical solution of Example 1, the first clamping portion 211 has a plurality of first hollow portions, and the second clamping portion 221 has a plurality of second hollow portions. The provision of the first hollow portion and the second hollow portion reduces the mass of the first clamping portion 211 and the second clamping portion 221, reduces the consumables required for production, and reduces costs. In Example 1, the first hollow portion and the second hollow portion are rectangular, and the length of at least one side of the rectangle is less than 15 cm to avoid bending of the plate to be welded during the clamping process. In other embodiments, the first hollow portion and the second hollow portion can be other shapes, and the specific dimensions are set according to the material and thickness of the plate to be welded.

[0038] like Figures 1 to 4 As shown, in the technical solution of Example 1, the first limiting structure 31 includes a third mounting seat 311 and a fourth mounting seat 312. The third mounting seat 311 has a first limiting portion 3111, and the fourth mounting seat 312 has a second limiting portion 3121. The angle between the first limiting portion 3111 and the second limiting portion 3121 is the same as the inner angle of the box to be welded. The first limiting portion 3111 is set corresponding to the plate to be welded that is attached to the second mounting seat, and the second limiting portion 3121 is set corresponding to the angle between the plate to be welded and the adjacent plate. The third mounting seat 311 and the fourth mounting seat 312 are both fixed to the workbench assembly 10, and the angle between the two adjacent plates is limited on the outside to ensure that the angle of the finished product meets the design requirements and ensure processing accuracy. The third mounting seat 311 and the fourth mounting seat 312 are both detachably connected to the workbench assembly 10, so that the relative position between the two can be adjusted, thereby changing the angle between the first limiting portion 3111 and the second limiting portion 3121 to adapt to box welding fixtures of different specifications.

[0039] like Figures 1 to 3 As shown, in the technical solution of embodiment one, the second limiting structure 32 includes a fifth mounting seat 321 and a third limiting portion 322, the third limiting portion 322 is movably connected to the fifth mounting seat 321, and the side of the third limiting portion 322 away from the fifth mounting seat 321 has an angle that is the same as the inner corner of the box to be welded, and the third limiting portion 322 has a limiting state away from the fifth mounting seat 321 and a to-be-limited state close to the fifth mounting seat 321. The second limiting structure also includes a third horizontal driving cylinder. After the third horizontal driving cylinder drives the third limiting part 322 to move to a suitable position, the first clamping structure 21 and the second clamping structure 22 clamp the plate to be welded, so that the plate to be welded is pressed against the third limiting part 322, which is the positioning of the plate to be welded in this case. The angle of the connecting plate is the same as the top angle of the third limiting part 322. The two adjacent third limiting parts 322 to be welded limit the inner angle of the box to be welded on the inside of the box to be welded, ensuring that the angle of the box after welding meets the design requirements and ensures processing accuracy.

[0040] like Figure 4 It is shown that in the technical solution of embodiment one, the box welding fixture also includes a clamping assembly 40, the clamping assembly 40 includes a sixth mounting seat and a clamping structure, the sixth mounting seat is arranged opposite to the outer wall of the box to be welded, the clamping structure is rotatably connected to the sixth mounting seat, and the clamping structure has a clamping state close to the box to be welded and a to-be-clamped state away from the box to be welded. In the first embodiment, after the four side panels of the box are welded, the first clamping structure 21 is removed from the workbench assembly 10, and the sixth mounting seat of the plurality of clamping assemblies 40 is installed on the workbench assembly 10. At this time, the sixth mounting seat of the plurality of clamping assemblies 40 is arranged relative to the outer wall of the box to be welded, and the bottom plate of the box to be welded is placed above the four side panels. The clamping structure rotates to press the four side edges of the bottom plate against the four side panels respectively, and the bottom plate and the side panels are welded; if it is necessary to weld the top of the box, the clamping structure rotates, the staff takes out the box, removes the second clamping structure 22, flips the box over and puts it back between the plurality of sixth mounting seats, and then welds the top plate in the same manner as welding the bottom plate. The setting of the clamping assembly 40 ensures that the side edges of the top plate or bottom plate are aligned with the side edges of the side panels during the welding process, thereby ensuring the quality of the weld.

[0041] like Figure 1 、 Figure 3 and Figure 4 As shown, in the technical solution of embodiment 1, the workbench assembly 10 has a plurality of mounting holes 11, and the plurality of mounting holes 11 are arranged in an array. The plurality of mounting holes 11 are threaded holes. The arrangement of the plurality of mounting holes 11 facilitates the installation of the above-mentioned components on the workbench assembly 10. The threaded connection method is not easy to shake during the welding process, and the installation and disassembly are convenient and quick, which facilitates the removal and replacement of the above-mentioned structure, so that it is suitable for welding metal boxes of different specifications. The method of using the box welding fixture when welding a rectangular box is illustrated in embodiment 1. The present application can also be applied to the welding of boxes of other prismatic shapes. It is only necessary to change the number and position of the first clamping structure 21, the second clamping portion 221, the first limiting structure 31, the second limiting structure 32 and the clamping assembly 40 according to the processing requirements.

[0042] The technical solution of Example 2 differs from that of Example 1 in that the sixth mounting base includes a negative pressure portion connected to the outer wall of the box to be welded. Compared to Example 1, which secures the sixth mounting base to the workbench assembly 10, this method utilizes negative pressure adsorption to secure the sixth mounting base to the outer wall of the box to be welded. This ensures that the relative position between the clamping structure and the upper edge of the box to be welded meets the required clamping requirements when welding boxes of different sizes, resulting in greater versatility.

[0043] The difference between the technical solution of Example 3 and the technical solution of Example 1 is that the mounting hole 11 is a negative pressure hole, and a vacuum pump is connected to the lower end of the negative pressure hole. Each negative pressure hole is controlled separately to achieve adsorption of clamping components 20 and angle limit components 30 of different sizes, and the clamping components 20 and angle limit components 30 can be set at any position on the workbench component 10. Compared with the threaded connection fixing method used in Example 1, there is no need to set corresponding connection holes according to the distance between the mounting holes 11, and it is more versatile.

[0044] From the above, it can be seen that the present application describes a stainless steel box welding combination fixture (box welding fixture) that can be used to clamp and fix stainless steel spliced boxes with a thickness of 2 to 5 mm. The clamping and fixing method is pneumatic control. By locking or adjusting the pneumatic fixture, the deformation of the box plate is adjusted to a state that meets the welding requirements, which speeds up the welding speed, reduces labor intensity, and improves the work efficiency of the entire welding process. The stainless steel box welding combination fixture meets the welding requirements of stainless steel box parts within the range of 650-1100 mm in length, 550-800 mm in width, and 550-750 mm in height. When welding a rectangular box, the three groups of internal movable fixtures (second clamping parts 221) can be adjusted to a fixed position within a certain size range, which facilitates the removal of the box after welding and can also meet the welding requirements of boxes of different sizes. When welding boxes of different sizes, it is only necessary to adjust the position of the three groups of internal corner movable fixtures (second limiting structures 32) to simply complete the positioning of the corner fixtures, meeting the welding requirements of boxes of various specifications on one workbench. The stainless steel box body is composed of 6 surfaces, namely box plate 1, box plate 2, box plate 3, box plate 4, box plate 5 and box plate 6 (wherein box plate 1, box plate 2, box plate 3 and box plate 4 are side panels). The stainless steel box body first fixes box plate 3 with an internal fixing fixture (second mounting seat 222), an external fixing fixture (first clamping structure 21) and an external movable fixture (first clamping structure 21) as a reference plate, and then splices box plate 4 with box plate 3. The 104 box plates 4 are fixed with an external fixing fixture, an external movable fixture and an internal movable fixture, and the gap between the splicing seams of box plates 3 and 4 is fine-tuned. After the welding requirements are met, the inner corner movable fixture is pressed to firmly fix the box plates to the box plates. The fixing and clamping method of box plates 1 and 2 is the same as that of box plate 4. After completing the clamping and fixation of the four surfaces of the stainless steel box body, the four vertical seam positions are welded. After the four vertical surfaces of the stainless steel box are welded, while keeping all the box surfaces and fixture components stationary, place the top box panel 5 on the stainless steel box. Align and align the welds with box panels 1, 2, 3, and 4. Use several rotating clamping cylinders (clamping components 40) to clamp the top box panel 5. Then weld the four welds around the perimeter of box panel 5. After the four vertical panels 1, 2, 3, and 4 of the stainless steel box and the top box panel 5 are welded, Loosen all internal and external clamps, remove the stainless steel welded box from the workbench, turn it 180°, and place it on a workbench without internal and external movable clamps (workbench assembly 10). In the same way, place the bottom box plate 6 on the stainless steel box, align and align the welds that fit with box plate 1, box plate 2, box plate 3, and box plate 4, use several rotary pressing cylinders to press the bottom box plate 6, and then weld the 4 welds around the box plate 6 to complete the welding work of the box.The stainless steel box welding assembly is highly automated. The internal and external clamps, the right-angle welding fixture, and the top clamping and rotating fixture are all automatically controlled by pneumatic cylinders. The operator simply presses a button to achieve automatic clamping, ensuring secure, safe, and reliable compression. The assembly clamps offer strong versatility, with a range of adjustment to meet the welding needs of boxes of varying sizes and specifications. This is economical and versatile. Angle positioning fixtures are added: During the welding process of a stainless steel box, maintaining the verticality of the four vertical edges is extremely difficult, as deformation of the sheet metal can result in uneven gap sizes. Adding angle positioning fixtures effectively secures the four vertical edges of the stainless steel box, ensuring even vertical seams and a high degree of fit.

[0045] Thus far, various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions of this application.

[0046] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A box welding fixture, characterized in that: include: Workbench assembly (10); A clamping assembly (20), the clamping assembly (20) being connected to the workbench assembly (10), the clamping assembly (20) comprising a first clamping structure (21) and a second clamping structure (22), the first clamping structure (21) comprising a first clamping portion (211), the second clamping structure (22) comprising a second clamping portion (221), and a plate to be welded being arranged between the first clamping portion (211) and the second clamping portion (221); An angle limiting assembly (30), the angle limiting assembly (30) is connected to the workbench assembly (10), the angle limiting assembly (30) comprises a first limiting structure (31) and a second limiting structure (32), the first limiting structure (31) and the second limiting structure (32) are respectively arranged on the inner and outer sides of the box to be welded.

2. The box welding fixture according to claim 1, characterized in that: The first clamping structure (21) further includes a first mounting seat (212) and a first connecting portion (213), wherein the first connecting portion (213) is movably connected to the first mounting seat (212), and the first connecting portion (213) is connected to the first clamping portion (211), and the first clamping portion (211) has a clamping state close to the second clamping portion (221) and a ready-to-clamp state away from the second clamping portion (221).

3. The box welding fixture according to claim 2, characterized in that: The second clamping structure (22) further includes a second mounting seat (222) and a second connecting portion (223), wherein the second connecting portion (223) is movably connected to the second mounting seat (222), and the second connecting portion (223) is connected to the second clamping portion (221), and the second clamping portion (221) has a clamping state close to the first clamping portion (211) and a ready-to-clamp state away from the first clamping portion (211).

4. The box welding fixture according to claim 1, characterized in that: The first clamping structure (21) includes a plurality of first clamping structures (21), and the plurality of first clamping structures (21) are arranged in a one-to-one correspondence with the outer side wall of the box to be welded; the second clamping structure (22) includes a plurality of second clamping parts (221), and the plurality of second clamping parts (221) are arranged in a corresponding manner with the inner side wall of the box to be welded.

5. The box welding fixture according to claim 1, characterized in that: The first clamping portion (211) has a plurality of first hollow portions, and the second clamping portion (221) has a plurality of second hollow portions.

6. The box welding fixture according to claim 1, characterized in that: The first limiting structure (31) comprises a third mounting seat (311) and a fourth mounting seat (312); the third mounting seat (311) has a first limiting portion (3111); the fourth mounting seat (312) has a second limiting portion (3121); and the angle between the first limiting portion (3111) and the second limiting portion (3121) is the same as the inner angle of the box to be welded.

7. The box welding fixture according to claim 1, characterized in that: The second limiting structure (32) comprises a fifth mounting seat (321) and a third limiting portion (322), wherein the third limiting portion (322) is movably connected to the fifth mounting seat (321), and a side of the third limiting portion (322) away from the fifth mounting seat (321) has an angle with the same size as the inner corner of the box to be welded, and the third limiting portion (322) has a limiting state away from the fifth mounting seat (321) and a to-be-limited state close to the fifth mounting seat (321).

8. The box welding fixture according to claim 1, characterized in that: The box welding fixture further comprises a clamping assembly (40), the clamping assembly (40) comprising a sixth mounting seat and a clamping structure, the sixth mounting seat being arranged opposite to the outer wall of the box to be welded, the clamping structure being rotatably connected to the sixth mounting seat, and the clamping structure having a clamping state close to the box to be welded and a to-be-compressed state away from the box to be welded.

9. The box welding fixture according to claim 8, characterized in that: The sixth mounting seat includes a negative pressure portion, and the negative pressure portion is connected to the outer side wall of the box to be welded.

10. The box welding fixture according to any one of claims 1 to 9, characterized in that: The workbench assembly (10) has a plurality of mounting holes (11), and the plurality of mounting holes (11) are arranged in an array.

Images