Welding system and welding auxiliary tool thereof

Abstract

The invention provides a welding system and a welding auxiliary tool thereof. The welding auxiliary tool comprises a base frame, a plurality of pressing mechanisms and a plurality of clamping mechanisms. The pressing mechanism comprises a positioning block and a pressing assembly which are distributed on the base frame in the first direction. The clamping mechanism comprises a limiting block and a clamping assembly which are distributed on the base frame in the second direction. And in the multiple pressing mechanisms, at least one pressing mechanism corresponds to one first beam, and the positioning block and the pressing assembly can be close to each other in the first direction so as to press the first beam. In the multiple clamping mechanisms, at least one clamping mechanism corresponds to one second beam, and the limiting block and the clamping assembly can get close to each other in the second direction so as to clamp the second beam. According to the design, the positions of the positioning block and the pressing assembly relative to the base frame in the first direction and the positions of the limiting block and the clamping assembly relative to the base frame in the second direction can be adjusted so as to adapt to frames of different sizes and specifications and different structures, the machining requirements of various frames can be met, and high universality and flexibility are achieved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a welding system and its welding auxiliary tooling. Background Technology

[0002] Because each commercial vehicle manufacturer adopts an independent design for its hydrogen supply system, there are significant differences in the length, width, and material arrangement of the hydrogen supply system frame for different models.

[0003] Existing welding fixtures for hydrogen supply system frames are mostly "customized rigid structures" with fixed positions for their positioning components and clamping mechanisms. They can only be used for welding operations of a single vehicle model or a single size frame. Different welding fixtures need to be replaced according to different vehicle models or different size frames, resulting in poor flexibility and versatility. This can easily lead to the idleness or scrapping of welding fixtures, causing resource waste and increased costs. Summary of the Invention

[0004] The purpose of this invention is to provide a versatile and highly flexible welding system and its welding auxiliary tooling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: According to one aspect of this application, a welding auxiliary fixture is provided for welding a frame, the frame including a plurality of first beams spaced apart along a first direction and a plurality of second beams spaced apart along a second direction, the welding auxiliary fixture including: Base frame; Multiple clamping mechanisms; each clamping mechanism includes a positioning block and a clamping assembly movably disposed on the base frame, the positioning block and the clamping assembly being distributed along a first direction; Multiple clamping mechanisms; each clamping mechanism includes a limiting block and a clamping assembly movably disposed on the base frame, the limiting block and the clamping assembly being distributed along a second direction; Among the plurality of clamping mechanisms, at least one clamping mechanism corresponds to a first beam, and the positioning block and the clamping assembly can approach each other to clamp the first beam from both sides along a first direction; among the plurality of clamping mechanisms, at least one clamping mechanism corresponds to a second beam, and the limiting block and the clamping assembly can approach each other to clamp the second beam from both sides along a second direction.

[0006] In some embodiments, the clamping assembly includes a base and an elastic clamping member disposed on the base, the base being movably connected to the base frame; the elastic clamping member is disposed on the upper part of the base, and the elastic clamping member is elastically expandable and contractable along a first direction to elastically abut against the first beam.

[0007] In some embodiments, the elastic clamping member includes a pressing post and an elastic body. The pressing post passes through the base and slides with the base. The elastic body is sleeved on the pressing post, and its axial ends are respectively connected to the pressing post and the base. The elastic body elastically expands and contracts as the pressing post slides relative to the base in a first direction.

[0008] In some embodiments, multiple clamping mechanisms are arranged in an array on the base frame; The welding auxiliary tooling also includes multiple moving components, each of which corresponds to a row of clamping mechanisms arranged along a first direction; each moving component includes a connecting frame and a moving part, the connecting frame is connected and fixed to the top of a row of bases arranged along the first direction, the moving part is fixed to one end of the base frame along the first direction, the output end of the moving part is fixed to the end of the connecting frame along the first direction, and the moving part is used to drive the connecting frame to move along the first direction.

[0009] In some embodiments, the connecting frame is detachably connected to the base; The connecting frame includes two connecting rods spaced apart along a second direction and a fixing rod connected to the ends of the two connecting rods along a first direction. The fixing rod is fixed to the drive shaft of the moving part. Each of the connecting rods is provided with a plurality of connecting hole groups spaced apart along a first direction, and each connecting hole group corresponds to a base; the base is provided with through holes at both ends along a second direction, and fasteners are inserted into each through hole and the corresponding connecting hole group, and the fasteners are used to connect and fix the base and the connecting rod; The connecting hole group includes a plurality of connecting holes spaced apart along a first direction, or the connecting hole group is an oblong hole whose length extends along the first direction, so that the position of the fastener on the connecting rod along the first direction is adjustable.

[0010] In some embodiments, the positioning block includes a support wall and a positioning wall that are perpendicular to each other. The support wall is used to support the first beam, and the positioning wall is disposed at the end of the support wall away from the clamping assembly to abut against the first beam. The limiting block includes a support wall and a limiting wall that are perpendicular to each other. The support wall is used to support the second beam, and the limiting wall is disposed at the end of the support wall away from the clamping assembly and is used to abut against the second beam. The supporting wall and the backing wall are flush.

[0011] In some embodiments, the clamping mechanism includes a mounting base movably connected to the base frame; the positioning block protrudes from the top of the mounting base; The clamping mechanism further includes a clamping component, which includes a driving member and a clamping member. The driving member is disposed on the mounting base and is located on the side of the positioning block away from the clamping component. The driving member is driven to connect with the clamping member to drive the clamping member to move up and down, so that the clamping member approaches and abuts the top of the first beam or moves away from the first beam.

[0012] In some embodiments, multiple clamping mechanisms are arranged in an array on the base frame; The welding auxiliary tooling also includes a plurality of guide members, which are spaced apart on the top of the base frame along the second direction. Each guide member is slidably engaged with a row of clamping mechanisms distributed along the first direction. Each of the clamping mechanisms further includes a locking member, at least one of the locking members is provided on the mounting base, and the locking member is located outside the guide member; the locking member is movable to approach and abut against the guide member or move away from the guide member.

[0013] In some embodiments, the plurality of said clamping mechanisms are arranged in an array; The welding auxiliary tooling also includes multiple support seats, and a row of clamping mechanisms distributed along the second direction is correspondingly arranged on one of the support seats. The support seats are movably connected to the base frame and can move relative to the base frame along the first direction. Each of the limiting blocks and each of the clamping components are movably connected to the corresponding support seat, and are able to move relative to the support seat in the second direction.

[0014] In some embodiments, the clamping assembly includes a power member and a clamping member. The power member is movably disposed on the support base, and the power shaft of the power member faces the limiting block. The clamping member is fixed to the power shaft of the power member. The power member is used to drive the clamping member to move along a second direction to approach or move away from the limiting block.

[0015] In some embodiments, the clamping mechanism further includes a resisting component, which is located on the same side of the limiting block as the clamping component; The abutment assembly includes a transmission component and an abutment component. The transmission component is located above the clamping assembly, and the abutment component is fixed on the transmission shaft of the transmission component. The abutment component is located above the limiting block. The transmission component is used to drive the abutment component to move up and down to approach the limiting block and abut against the top of the second beam, or away from the limiting block.

[0016] In some embodiments, the supporting component is movably connected to the support base; The clamping mechanism further includes a support base, which has a receiving groove with a bottom opening for accommodating the clamping assembly, and the clamping assembly is connected and fixed to the support base; the bottom of the support base is movably connected to the bearing seat, and the abutment assembly is fixed to the top of the support base.

[0017] In some embodiments, the support base is provided with a plurality of fixing holes spaced apart along the second direction; The support base is provided with a connecting groove with a bottom opening. Each connecting groove corresponds to a locking member passing through one of the fixing holes. The locking member is used to detachably connect the support base and the bearing base. The limiting block is provided with a limiting groove with a bottom opening. Each limiting groove corresponds to a limiting member passing through one of the fixing holes. The limiting member is used to detachably connect the limiting block and the bearing seat.

[0018] In some embodiments, the clamping mechanism further includes a resisting component, which is positioned on opposite sides of the limiting block along the second direction, along with the clamping component. The abutment assembly includes a transmission component and an abutment component. The transmission component passes through the bearing seat, and the abutment component is fixed on the transmission shaft of the transmission component. The transmission component is used to drive the abutment component to rotate above the limiting block to abut the top of the second beam, or away from the limiting block.

[0019] In some embodiments, the supporting component is movably connected to the support base; The clamping mechanism further includes a support base, which is movably disposed on the top of the bearing seat. The transmission member passes through the support base and is connected and fixed to the support base. The abutment member is located above the support base. The support seat is provided with a through hole that extends along a second direction. The transmission member passes through the through hole and is able to move within the through hole.

[0020] In some embodiments, two first beams and two second beams are connected end to end to form the frame of the frame, wherein one second beam is located outside the first end of the two first beams and the other second beam is located between the second ends of the two first beams. The welding auxiliary tooling also includes multiple clamping components, each clamping component is provided corresponding to one corner of the frame, each clamping component is connected to the base frame, and the multiple clamping components are used to clamp the frame.

[0021] In some embodiments, the plurality of clamping assemblies include two first clamping assemblies and two second clamping assemblies; the two first clamping assemblies are arranged corresponding to the second beams located outside the two first beams, and each first clamping assembly includes: The first movable seat is movably connected to the base frame and can move relative to the base frame in a first direction, and the first movable seat protrudes outward from the base frame in a second direction; An output component is disposed on the first movable seat, and the output shaft of the output component faces the base frame; A clamping member is disposed on the output shaft of the output member, and the output member is used to drive the clamping member to move along the second direction to approach and abut against the second beam, or to move away from the second beam.

[0022] In some embodiments, the two second clamping components are arranged in a one-to-one correspondence with the second ends of the two first beams of the frame; Each of the second clamping components includes a second movable seat and a first clamping block. The second movable seat is movably connected to the base frame and can move relative to the base frame in a first direction, and the first movable seat protrudes outward from the base frame in a second direction. The first clamping block is movably disposed on the second movable seat and can move relative to the second movable seat in a second direction. The first clamping block is used to abut against the second end of the first beam. The second clamping assembly further includes a second clamping block, which is movably disposed on the second movable seat. The second clamping block is spaced apart on the side of the first clamping block near the base frame and is used to abut against the outer side of the first beam along the first direction.

[0023] In some embodiments, the welding fixture further includes a control component, which is communicatively connected to each of the clamping mechanisms and each of the holding mechanisms; The welding fixture also includes a plurality of first sensors. Each positioning block and each limiting block are respectively provided with a first sensor. The first sensor is used to detect the position signal of the first beam or the second beam. Each first sensor is communicatively connected to the control component. The welding fixture also includes multiple second sensors. Each clamping component and each clamping component is provided with a corresponding second sensor. The second sensor is used to detect the clamping force signal of the clamping component and the clamping component. Each second sensor is communicatively connected to the control component.

[0024] According to another aspect of this application, this application also provides a welding system, including a gripping robot, a welding robot, and a welding auxiliary fixture as described in any of the above. The gripping robot is used to grip a first beam and a second beam onto the welding auxiliary fixture, the welding auxiliary fixture is used to clamp and fix the first beam and the second beam, and the welding robot is used to weld to form a frame. The control components of the welding auxiliary fixture are respectively communicatively connected to the gripping robot and the welding robot.

[0025] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects: In this application, since the positioning blocks and clamping components of each clamping mechanism are movably mounted on the base frame, both can move relative to the base frame along the first direction to approach each other, thereby clamping and fixing the first beam to prevent the first beam from shifting and affecting the subsequent welding effect. Alternatively, the positioning blocks and clamping components can move away from each other to facilitate the picking and placing of the first beam. At the same time, since the limiting blocks and clamping components of each clamping mechanism are movably mounted on the base frame, both can move relative to the base frame along the second direction to approach each other, thereby clamping and fixing the second beam to prevent the second beam from shifting and affecting the subsequent welding effect. Alternatively, the limiting blocks and clamping components can move away from each other to facilitate the picking and placing of the second beam.

[0026] Furthermore, the above design allows for the adjustment of the position of the positioning block and clamping assembly relative to the base frame in the first direction, and the position of the limiting block and clamping assembly relative to the base frame in the second direction, in order to adapt to frames of different sizes and structures, meet the processing needs of various frames, have high versatility and flexibility, and can also improve the utilization rate of welding auxiliary tooling, avoid idleness, save resources, and reduce production costs. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the welding auxiliary tooling in this embodiment.

[0028] Figure 2 This is a schematic diagram illustrating the effect of using the welding auxiliary tooling in this embodiment.

[0029] Figure 3 yes Figure 2 Top view of the structure shown.

[0030] Figure 4 This is a schematic diagram of the base frame in this embodiment.

[0031] Figure 5 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0032] Figure 6 This is a schematic diagram of the clamping mechanism in this embodiment.

[0033] Figure 7 This is a schematic diagram of the clamping mechanism in this embodiment.

[0034] Figure 8 yes Figure 1 Enlarged structural diagram at point B.

[0035] Figure 9 This is a partial structural schematic diagram of the welding auxiliary tooling in this embodiment.

[0036] Figure 10 This is a schematic diagram of the structure of the second clamping assembly in this embodiment.

[0037] The annotations in the attached figures are explained as follows: 100. Welding auxiliary tooling; 210. First beam; 220. Second beam; 1. Base frame; 11. Frame body; 111. Crossbeam; 112. Longitudinal beam; 113. Longitudinal beam assembly; 114. Reinforcing beam; 12. Leg; 13. End support structure; 131. Support beam; 14. Cable tray; 141. Connecting beam; 1411. Cable routing hole; 142. Cable routing beam; 1421. Cable routing hole; 2. Clamping mechanism; 21. Positioning block; 211. Support wall; 212. Positioning wall; 22. Clamping assembly; 221. Base; 2211. Seat body; 2212. Fixing block; 222. Elastic clamping element; 23. Mounting seat; 231. Seat plate; 232. Locking plate; 2321. Locking hole; 25. Abutting assembly; 251. Driving element; 2511. Driving body; 2512. Driving shaft; 2513. Rotating frame; 252. Abutting element; 2521. Abutting rod; 2522. Abutting block; 2523. Locking block; 26. Connecting seat; 261. Main body; 262. First connecting part; 263. Second connecting part; 3. Clamping mechanism; 31. Limiting block; 311. Support wall; 312. Limiting wall; 32. Clamping assembly; 321. Power component; 322. Clamping component; 323. Support rod; 324. Slide; 33. Support base; 34. Abutment assembly; 34a. First abutment assembly; 34b. Second abutment assembly; 341. Transmission component; 342. Abutment component; 3421. Extension block; 3422. Abutment column; 35. Support base; 41. Guide rail; 42. Guide block; 5. Moving component; 51. Connecting frame; 511. Connecting rod; 512. Fixed rod; 52. Moving part; 6. Support base; 61. Slide rail; 62. Fixing hole; 63. Through hole; 64. Locking plate; 71. First clamping assembly; 711. First movable seat; 712. Output component; 713. Clamping component; 72. Second clamping assembly; 721. Second movable seat; 722. First clamping block; 7221. First wall; 7222. Second wall; 7223. Third wall; 723. Second clamping block; 7231. Horizontal wall; 7233. Vertical wall; 8. Control components. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0039] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0040] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] This application provides a welding auxiliary fixture 100 for welding a frame. The frame includes a plurality of first beams 210 spaced apart along a first direction and a plurality of second beams 220 spaced apart along a second direction. Two first beams 210 and two second beams 220 are sequentially connected end-to-end to form the frame's border.

[0042] For example, in the frame, a second beam 220 is located outside the first ends of the two first beams 210, and another second beam 220 is located between the second ends of the two first beams 210. Here, the first end and the second end refer to the opposite ends of the first beams 210 in the length direction.

[0043] The frame includes two second beams 220, which are spaced apart between the two first beams 210 of the frame along a second direction. At least two first beams 210 are spaced apart between the second beams 220 located within the frame and the second beams 220 of the adjacent frame along a first direction.

[0044] The above is merely an example illustrating one frame structure. In other embodiments, the frame can be any other structure. For example, in the frame, two second beams 220 may be arranged on the outer sides of the opposite ends of two first beams 210, or both second beams 220 may be located between the two first beams 210. For example, the frame may have two first beams 210, which are spaced apart along a first direction between the two second beams 220 of the frame; at least one second beam 220 may be spaced apart between adjacent first beams 210 along the first direction.

[0045] In other words, the specific structure of the framework can be arranged according to actual needs, and will not be elaborated here.

[0046] The following detailed description, in conjunction with the accompanying drawings, provides a specific embodiment of the welding auxiliary tooling 100 of this application.

[0047] Figure 1 This is a three-dimensional structural diagram of the welding auxiliary tooling 100 in this embodiment. Figure 2 This is a schematic diagram illustrating the usage effect of the welding auxiliary tooling 100 in this embodiment. Figure 3 for Figure 2 Top view of the structure shown.

[0048] refer to Figures 1-3 The welding auxiliary tooling 100 includes a base frame 1, multiple clamping mechanisms 2, and multiple clamping mechanisms 3. Each clamping mechanism 2 includes a positioning block 21 and a clamping assembly 22 movably mounted on the base frame 1, distributed along a first direction. Each clamping mechanism 3 includes a limiting block 31 and a clamping assembly 32 movably mounted on the base frame 1, distributed along a second direction. At least one clamping mechanism 2 corresponds to a first beam 210, and the positioning block 21 and clamping assembly 22 can approach each other to clamp the first beam 210 from both sides along the first direction. At least one clamping mechanism 3 corresponds to a second beam 220, and the limiting block 31 and clamping assembly 32 can approach each other to clamp the second beam 220 from both sides along the second direction.

[0049] In this application, since the positioning block 21 and the clamping component 22 of each clamping mechanism 2 are movably mounted on the base frame 1, both can move relative to the base frame 1 in the first direction to approach each other, thereby clamping and fixing the first beam 210 to prevent the first beam 210 from shifting and affecting the subsequent welding effect. Alternatively, the positioning block 21 and the clamping component 22 can move away from each other to facilitate the picking and placing of the first beam 210. At the same time, since the limiting block 31 and the clamping component 32 of each clamping mechanism 2 are movably mounted on the base frame 1, both can move relative to the base frame 1 in the second direction to approach each other, thereby clamping and fixing the second beam 220 to prevent the second beam 220 from shifting and affecting the subsequent welding effect. Alternatively, the limiting block 31 and the clamping component 32 can move away from each other to facilitate the picking and placing of the second beam 220. Furthermore, the above design allows for the adjustment of the positions of the positioning block 21 and the clamping component 22 relative to the base frame 1 in the first direction, and the positions of the limiting block 31 and the clamping component 32 relative to the base frame 1 in the second direction, in order to adapt to frames of different sizes and structures, meet the processing requirements of various frames, have high versatility and flexibility, and can also improve the utilization rate of the welding auxiliary tooling 100, avoid idleness, save resources, and reduce production costs.

[0050] In this text, the first direction refers to the length direction of the welding auxiliary fixture 100, and the second direction refers to the width direction of the welding auxiliary fixture 100. Both the first and second directions extend horizontally and are perpendicular to each other.

[0051] Figure 4 This is a schematic diagram of the structure of the base frame 1 in this embodiment.

[0052] refer to Figures 1-4 The base frame 1 includes a frame body 11 and multiple support legs 12. The frame body 11 includes two crossbeams 111 and multiple longitudinal beams 112. Specifically, the two crossbeams 111 are spaced apart along a first direction, and the multiple longitudinal beams 112 are spaced apart between the two crossbeams 111 along a second direction to form a rectangular frame body 11. The multiple longitudinal beams 112 are grouped in pairs to form at least two longitudinal beam groups 113, and the distance between the two longitudinal beams 112 in each longitudinal beam group 113 is less than the distance between two adjacent longitudinal beam groups 113.

[0053] Optionally, the frame 11 also includes a reinforcing beam 114, with at least one reinforcing beam 114 connecting adjacent longitudinal beam groups 113. The reinforcing beam 114 extends along the second direction and is used to enhance the structural strength of the frame 11.

[0054] Multiple supports 12 are spaced apart along the circumference of the frame 11 at the bottom of the frame 11, and the multiple supports 12 cooperate to support the frame 11. Specifically, a support 12 is provided at each of the four corners of the frame 11.

[0055] Optionally, the base frame 1 also includes multiple end support structures 13. An end support structure 13 is provided at each end along the first direction between two adjacent longitudinal beam groups 113, and each end support structure 13 is correspondingly connected to a crossbeam 111. Specifically, each end support structure 13 includes two support beams 131, one end of which is connected to the crossbeam 111, and the other end is connected to a longitudinal beam 112. The two support beams 131 are inclined towards the crossbeam 111. That is, each end support structure 13 is V-shaped, providing three-point support between two adjacent longitudinal beam groups 113 and the crossbeam 111, which can evenly distribute the force and improve the structural stability of the frame 11.

[0056] Optionally, the base frame 1 also includes a cable tray 14, which is located at the bottom of the frame 11 and has multiple cable routing holes 1421. The cable tray 14 is used for cable arrangement of the welding auxiliary fixture 100 to neatly store cables and optimize the layout.

[0057] Specifically, the cable tray 14 includes a connecting beam 141 and multiple cable tray beams 142. The connecting beam 141 is arranged at one end of the frame 11 along a first direction, and extends along a second direction. The connecting beam 141 is hollow inside, forming a wiring channel, and multiple wiring holes 1411 communicating with the wiring channel are provided at intervals along the second direction on the outer side of the connecting beam 141 along the first direction. Here, "outer side" refers to the direction away from the center of the frame 11, and the same applies below.

[0058] Multiple cable routing beams 142 are connected at intervals along the second direction to the side of the frame 11 opposite to the wiring hole 1411 along the first direction. Each cable routing beam 142 extends along the first direction and is connected to one of the longitudinal beams 112 in a longitudinal beam group 113. A cable routing channel is formed inside each cable routing beam 142, and the cable routing channel communicates with the wiring channel. Multiple cable routing holes 1421 communicating with the cable routing channel are provided at intervals along the first direction on each cable routing beam 142.

[0059] refer to Figures 1-3 Multiple clamping mechanisms 2 are arranged in an array on the base frame 1, wherein at least one clamping mechanism 2 corresponds to a first beam 210. Specifically, each longitudinal beam group 113 is provided with a row of clamping mechanisms 2.

[0060] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle. Figure 6 This is a schematic diagram of the clamping mechanism 2 in this embodiment.

[0061] refer to Figures 1-3 , Figure 5 and Figure 6Each clamping mechanism 2 includes a positioning block 21 and a clamping component 22 movably mounted on the base frame 1. The positioning block 21 and the clamping component 22 are distributed along a first direction, allowing them to move relative to the base frame 1 along the first direction to approach each other, thereby clamping and fixing the first beam 210 and preventing the first beam 210 from shifting and affecting the subsequent welding effect. Alternatively, the positioning block 21 and the clamping component 22 can be moved away from each other to facilitate the removal and placement of the first beam 210. Furthermore, the above design allows for adjustment of the position of the positioning block 21 and the clamping component 22 relative to the base frame 1 in the first direction to adapt to frames of different sizes and structures, meet the processing needs of various frames, and have high versatility and flexibility. It can also improve the utilization rate of the welding auxiliary tooling 100, avoid idleness, save resources, and reduce production costs.

[0062] The positioning block 21 includes a support wall 211 and a positioning wall 212 that are perpendicular to each other. The support wall 211 supports the first beam 210, and the positioning wall 212 is located at the end of the support wall 211 along a first direction and abuts against the side of the first beam 210. That is, the positioning block 21 is L-shaped, and its support wall 211 and positioning wall 212 cooperate to provide a reference positioning for the first beam 210.

[0063] Each clamping mechanism 2 includes two positioning blocks 21, which are spaced apart along the second direction. This increases the area of ​​the supporting wall 211 of each clamping mechanism 2, increases the contact area with the first beam 210, and improves the support stability of the first beam 210.

[0064] In this embodiment, the clamping assembly 22 is located on the side of the supporting wall 211 of the positioning block 21 away from the positioning wall 212. The clamping assembly 22 includes a base 221 and an elastic clamping member 222 disposed on the base 221.

[0065] The base 221 is movably connected to the base frame 1. Specifically, the base 221 is movably connected to a longitudinal beam assembly 113.

[0066] Exemplarily, the base 221 includes a seat body 2211 and a fixing block 2212, the seat body 2211 being movably connected to the base frame 1. The fixing block 2212 is disposed on the top of the seat body 2211. In this embodiment, the fixing block 2212 is L-shaped, including a fixing part and a vertical part. The fixing part is used to connect with the seat body 2211, and the vertical part stands on the top of the end of the fixing part facing the positioning block 21. This design allows for a larger contact area between the fixing block 2212 and the seat body 2211, which can improve the stability of the fixing block 2212. At the same time, it can also reduce the weight of the fixing block 2212, which is beneficial to achieving a lightweight clamping assembly 22.

[0067] In other embodiments, the base 221 may also adopt a one-piece molded structure, that is, the base 221 is L-shaped.

[0068] In this embodiment, each pressing component 22 includes two fixing blocks 2212 spaced apart on the top of the base 2211 along the second direction. In each pressing mechanism 2, the two fixing blocks 2212 and the two positioning blocks 21 are arranged in a one-to-one correspondence, and the corresponding fixing blocks 2212 and positioning blocks 21 are spaced apart along the first direction.

[0069] The elastic clamping member 222 is located on the upper part of the base 221. The elastic clamping member 222 can elastically expand and contract along the first direction to elastically abut against the first beam 210. In actual application, during the subsequent welding process, the elastic clamping member 222 can deform to automatically adapt to the deformation of the first beam 210 due to heat, thereby generating continuous and uniform pressure on the first beam 210. This ensures that the first beam 210 is in a state of being pressed and fixed by the positioning block 21 and the elastic clamping member 222 throughout the entire welding process, improving the stability of the clamping mechanism 2 in pressing and fixing the first beam 210. In addition, when the pressing assembly is moved toward the positioning block 21 to press the first beam 210, the elastic clamping member 222 can also deform to play a buffering role, avoiding excessive instantaneous force at the moment of contact that could cause deformation of the first beam 210.

[0070] Each clamping assembly 22 includes two elastic clamping members 222. Specifically, each elastic clamping member 222 is disposed on the upper part of the vertical part of each fixing block 2212.

[0071] For example, the elastic clamping member 222 includes a clamping post and an elastic body. The clamping post passes through the base 221 and slides in cooperation with the base 221. The elastic body is sleeved on the clamping post, and the two axial ends of the elastic body are respectively connected to the clamping post and the base 221. The elastic body elastically expands and contracts as the clamping post slides relative to the base 221 in a first direction. In the above design, the pressing column and the elastic body work together to achieve elastic contact with the first beam 210. Specifically, since the two ends of the elastic body are connected to the pressing column and the base 221 respectively, after the end of the pressing column facing the positioning block 21 abuts against the first beam 210, the first beam 210 gives the pressing column a reaction force. For example, during the subsequent welding process, when the first beam 210 deforms due to heat, the distance between the first beam 210 and the fixing block 2212 in the first direction may change, which will cause the magnitude of the force between the pressing column and the first beam 210 to change. This will cause the pressing column to slide relative to the base 221 in the first direction to adapt to the change in the magnitude of the force. During this process, the distance between the end of the pressing column facing the positioning block 21 and the base 221 in the first direction changes, which causes the elastic body to undergo elastic deformation. Similarly, the elastic body gives the pressing column a reaction force, so that the end of the pressing column facing the positioning block 21 can maintain the state of abutting against the first beam 210, thereby achieving elastic contact with the first beam 210. In addition, the crimping post can guide the elastic expansion and contraction of the elastic body, so that the elastic body expands and contracts along the first direction, thereby ensuring that the elastic clamping member 222 abuts against the first beam 210 along the first direction and improving the clamping stability of the first beam 210.

[0072] Specifically, the crimping post is installed at the top of the vertical part and extends along the first direction. The crimping body and the positioning wall 212 of the positioning block 21 are collinearly distributed along the first direction, so that the force exerted by the crimping body and the positioning wall 212 on the first beam 210 is collinear along the first direction. This design, through symmetrical force distribution, can effectively reduce the displacement or vibration of the first beam 210 during the processing, which is conducive to providing higher positioning accuracy and clamping stability, thereby improving the processing quality.

[0073] Specifically, the crimping post includes a crimping portion and a sliding portion. The crimping portion is fixed to the end of the sliding portion along its length and extends outwards circumferentially beyond the sliding portion. A through hole is provided on the vertical portion, and the sliding portion passes through the through hole. The outer diameter of the crimping portion is larger than the inner diameter of the through hole. An elastic body is sleeved on the sliding portion, and one axial end of the elastic body abuts or is fixed to the side of the crimping portion facing the sliding portion, while the other end abuts or is fixed to the side of the vertical portion facing the crimping portion.

[0074] The elastic body can be a compression spring or a tension spring.

[0075] Optionally, the clamping mechanism 2 further includes a mounting base 23, which is movably connected to the base frame 1, and a positioning block 21 protrudes from the top of the mounting base 23. Specifically, the mounting base 23 is movably connected to a longitudinal beam assembly 113.

[0076] Optionally, the welding auxiliary tooling 100 also includes a plurality of guide members, which are spaced apart on the top of the base frame 1 along the second direction, and each guide member is in sliding engagement with a row of clamping mechanisms 2 distributed along the first direction.

[0077] Specifically, each guide member corresponds to a longitudinal beam group 113 and includes two guide rails 41 and multiple guide blocks 42. Each guide rail 41 is located at the top of a longitudinal beam 112 and extends along a first direction. Each mounting base 23 has at least one guide block 42 at each end of its bottom along a second direction. The guide blocks 42 at each end of the mounting base 23 along the second direction are slidably engaged with a guide rail 41 to enable movement of the mounting base 23 relative to the base frame 1. Similarly, each base 2211 has at least one guide block 42 at each end of its bottom along the second direction. The guide blocks 42 at each end of the base 2211 along the second direction are slidably engaged with a guide rail 41 to enable movement of the base 221 relative to the base frame 1.

[0078] Specifically, one of the guide rail 41 and the guide block 42 is provided with a guide groove for accommodating the other.

[0079] Optionally, each clamping mechanism 2 further includes a locking element (not shown in the figure). At least one locking element is provided on the mounting base 23, and the locking element is located outside the guide member. The locking element can move to approach and abut against the guide member to lock the positioning block 21 onto the guide member, thereby fixing the position of the positioning block 21 in the first direction and improving the stability of the mounting base 23. Alternatively, the locking element can move away from the guide member to unlock the positioning block 21, allowing the positioning block 21 to move along the guide member to facilitate position adjustment of the positioning block 21 in the first direction. It should be noted that the "outer side" here is different from the "outer side" mentioned above. Here, the "outer side" refers to one side of the guide member along the second direction.

[0080] Specifically, the mounting base 23 includes a base plate 231 and a locking plate 232. The base plate 231 is slidably engaged with the guide rail 41 via a guide block 42. A locking plate 232 is provided at the bottom of each end of the base plate 231 along the second direction. The two locking plates 232 are arranged in a one-to-one correspondence with the two longitudinal beams 112 of the longitudinal beam assembly 113. Each locking plate 232 is located on one side of the corresponding longitudinal beam 112 along the second direction. Each locking plate 232 is provided with at least one locking hole 2321. A locking member is inserted into each locking hole 2321. The locking member can move relative to the locking plate 232 to approach or move away from the corresponding guide rail 41.

[0081] The locking component can be a bolt, and the locking component is screwed to the locking plate 232.

[0082] Optionally, the welding auxiliary tooling 100 also includes a plurality of moving components 5, each moving component 5 corresponding to a row of clamping mechanisms 2 arranged along the first direction.

[0083] Each movable component 5 includes a connecting frame 51 and a movable element 52. The connecting frame 51 is connected and fixed to the top of a row of bases 221 distributed along the first direction. The movable element 52 is fixed to one end of the base frame 1 along the first direction. The output end of the movable element 52 is fixed to the end of the connecting frame 51 along the first direction. The movable element 52 is used to drive the connecting frame 51 to move along the first direction. That is, each movable component 5 can provide power for the movement of a row of pressing components 22 distributed along the first direction, and can realize the position adjustment of a row of pressing components 22 along the first direction at one time. This can improve the synchronicity and consistency of the movement of each row of pressing components 22, and is convenient, simple, efficient and quick to operate. At the same time, after the pressing component 22 moves into place, the position of the pressing component 22 in the first direction can be directly fixed after the movable element 52 is closed, without the need for additional structural components for fixing the position of the pressing component 22. In addition, the above design can also save the number of movable elements 52, simplify the structure and save costs.

[0084] Optionally, the connecting bracket 51 and the base 221 can be detachably connected, which facilitates the removal of the base 221 from the connecting bracket 51 and makes it easier to repair and replace the clamping component 22, as well as to facilitate the installation of the clamping component 22.

[0085] Specifically, the connecting frame 51 includes two connecting rods 511 spaced apart along the second direction and a fixing rod 512 connected to the ends of the two connecting rods 511 along the first direction. The fixing rod 512 is fixed to the drive shaft 2512 of the moving member 52.

[0086] The top of the connecting frame 51 is lower than the support wall 211 of the positioning block 21 to avoid interference with the support function of the support wall 211. At the same time, it can also prevent the first beam 210 placed on the support wall 211 from contacting the top of the connecting frame 51 and affecting the movement of the connecting frame 51 in the first direction, so as to avoid interference between the first beam 210 and the connecting frame 51, prevent friction damage between the first beam 210 and the connecting frame 51, thereby ensuring the smooth movement of the connecting frame 51 driving the pressing assembly 22, extending the service life of the connecting frame 51, and improving the product yield of the frame.

[0087] Each connecting rod 511 has multiple sets of connecting holes spaced apart along the first direction, and each set of connecting holes corresponds to a base 221. The base 221 has through holes at both ends along the second direction, and fasteners are inserted into each through hole and the corresponding set of connecting holes. The fasteners are used to connect and fix the base 221 and the connecting rod 511, thereby realizing a detachable connection between the connecting frame 51 and the base 221.

[0088] Optionally, the connecting hole group includes a plurality of connecting holes spaced apart along the first direction, so that the fastener can be located in any one of the connecting holes. Alternatively, the connecting hole group is a waist-shaped hole, the length of which extends along the first direction, so that the fastener can be located at any position within the waist-shaped hole. That is to say, the above designs enable the fastener to be positionally adjustable on the connecting rod 511 along the first direction, thereby enabling the base 221 to be positionally adjustable relative to the connecting rod 511 in the first direction, which is beneficial to meeting the processing requirements of frames of different specifications and sizes.

[0089] Optionally, the clamping mechanism 2 further includes a clamping assembly 25. The clamping assembly 25 includes a drive member 251 and a clamping member 252.

[0090] The driving member 251 is disposed on the mounting base 23 and is located on the side of the positioning block 21 opposite to the pressing assembly 22. The driving member 251 is drivenly connected to the abutment member 252 to drive the abutment member 252 to move up and down, so that the abutment member 252 approaches and abuts the top of the first beam 210 or moves away from the first beam 210. In other embodiments, the driving member 251 may also be disposed on the side of the base 221 opposite to the positioning block 21.

[0091] Optionally, the clamping mechanism 2 further includes a connecting seat 26 for connecting the drive member 251 and the mounting seat 23. Specifically, the connecting seat 26 is detachably connected between the drive member 251 and the mounting seat 23.

[0092] For example, the connecting seat 26 includes a main body 261 and a first connecting portion 262 and a second connecting portion 263 located at the upper and lower ends of the main body 261, respectively. The first connecting portion 262 protrudes from the main body 261 toward the driving member 251, and the second connecting portion 263 protrudes from the main body 261 toward the clamping assembly 22. The first connecting portion 262 is located above the second connecting portion 263 and fits against the side of the driving member 251 facing the positioning block 21. Fasteners pass through the first connecting portion 262 and the driving member 251 to connect and fix them. The second connecting portion 263 is located on top of the mounting seat 23, and fasteners pass through the second mounting portion and the mounting seat 23 to connect and fix the second connecting portion 263 and the mounting seat 23.

[0093] In this embodiment, the driving component 251 includes a driving body 2511, a rotating shaft, and a rotating frame 2513. Specifically, the driving body 2511 passes through the mounting base 23 from top to bottom and extends into the gap between the two longitudinal beams 112 of the longitudinal beam assembly 113, and the driving body 2511 is connected to the mounting base 23 via a connecting seat 26. The rotating shaft passes through the upper part of the driving body 2511 and extends along a second direction. The driving body 2511 is driven to connect with the rotating shaft to drive the rotating shaft to rotate around its axis. The rotating frame 2513 includes an integrated part and two rotating parts. The two rotating parts are fixedly fixed to the integrated part at a distance along the second direction, and the integrated part is connected to the abutment member 252. The two rotating parts are arranged on opposite sides of the driving body 2511 along the second direction, and each rotating part is fixedly connected to one end of the rotating shaft along the second direction. That is, the driving body 2511 drives the rotating shaft to rotate around its axis, thereby driving the rotating frame 2513 to rotate, thereby realizing the lifting or pressing of the abutment 252, so as to complete the action of the abutment pressing the first beam 210 or releasing the first beam 210.

[0094] Optionally, the clamping member 252 is detachably connected to the integrated part via fasteners to facilitate replacement of the clamping member 252. Each pressing mechanism 2 is equipped with multiple sets of clamping members 252, and each clamping member 252 can adapt to a first beam 210 of a certain size. Specifically, when the bottom of the clamping member 252 is in a horizontal state under the action of the driving member 251, the vertical distance between the bottom of each set of clamping members 252 and the supporting wall 211 of the positioning block 21 is different, so as to adapt to first beams 210 with height dimensions such as 40mm or 60mm.

[0095] For example, the clamping member 252 includes a clamping rod 2521 and two clamping blocks 2522. The clamping rod 2521 extends along a second direction and is detachably connected to the integrated portion of the rotating frame 2513. The two clamping blocks 2522 are spaced apart along the second direction on the side of the clamping rod 2521 opposite to the integrated portion, and the clamping blocks 2522 are used to abut against the top of the first beam 210. When the integrated portion is in a horizontal state, the clamping rod 2521 is located at the bottom of the integrated portion, and the bottom of the clamping blocks 2522 extends horizontally, so that the clamping blocks 2522 can completely fit against the top of the first beam 210, thereby maximizing the contact area between the clamping blocks 2522 and the first beam 210 and improving the clamping stability.

[0096] Furthermore, in each clamping mechanism 2, two clamping blocks 2522 and two positioning blocks 21 are arranged in a one-to-one correspondence. Each clamping block 2522 is located directly above the corresponding positioning block 21. Since the positioning block 21 and the elastic clamping member 222 are collinearly distributed in the first direction, that is, the above design enables each clamping block 2522 and the corresponding positioning block 21 and elastic clamping member 222 to act on the same point of the first beam 210 along the first direction. This can further reduce the displacement or vibration of the first beam 210 during the processing, which is conducive to providing higher positioning accuracy and clamping stability, thereby improving the processing quality.

[0097] Optionally, each clamping block 2522 and clamping rod 2521 can be detachably connected by fasteners. The differences between the sets of clamping components 252 can be specifically reflected in the different height dimensions of the clamping blocks 2522, while the clamping rod 2521 can be shared by all sets of clamping components 252. This design facilitates the replacement of the clamping blocks 2522 according to actual needs, making operation convenient and simple.

[0098] Optionally, the clamping member 252 may also include a locking block 2523, which is connected to the integrated part of the rotating frame 2513. The locking block 2523 has a locking groove on the side opposite to the integrated part, which is used to engage with the clamping rod 2521. The locking block 2523 and the clamping rod 2521 are connected and fixed by fasteners, which can further improve the structural stability of the clamping member 252.

[0099] refer to Figures 1-3 Multiple clamping mechanisms 3 are arranged in an array on the base frame 1. Among the multiple clamping mechanisms 3, at least one clamping mechanism 3 corresponds to a second beam 220 for pressing and fixing the second beam 220.

[0100] The welding auxiliary fixture 100 also includes multiple support seats 6, each support seat 6 corresponding to a row of clamping mechanisms 3 distributed along the second direction. That is, each row of clamping mechanisms 3 is arranged on a support seat 6, the support seat 6 is connected to the base frame 1, and the support seats 6 and the clamping mechanisms 2 are distributed at intervals along the first direction. Specifically, the two ends of the support seats 6 extend outward beyond the base frame 1 along the second direction. In each row of clamping mechanisms 3, the two clamping mechanisms 3 located on the outer side of the second direction are arranged on opposite outer sides of the base frame 1 along the second direction, and the remaining clamping mechanisms 3 are alternately distributed with multiple longitudinal beam groups 113. That is, each longitudinal beam group 113 has clamping mechanisms 3 arranged on opposite sides along the second direction. Since the support seats 6 and the clamping mechanisms 2 are distributed at intervals along the first direction, the clamping mechanisms 2 and the clamping mechanisms 3 are staggered in both the first and second directions to avoid interference between the clamping mechanisms 3 and the clamping mechanisms 2, ensuring that each clamping mechanism 3 and the clamping mechanism 2 can work independently and smoothly.

[0101] Optionally, the support base 6 is movably connected to the base frame 1 and can move relative to the base frame 1 along a first direction, thereby driving each row of clamping mechanisms 3 to move relative to the base frame 1 along the first direction. This allows for simultaneous adjustment of the position of each row of clamping mechanisms 3 in the first direction, improving the synchronicity and consistency of the movement of each row of clamping mechanisms 3, and making the operation convenient, simple, efficient, and fast. Specifically, the bottom of the support base 6 is provided with multiple sliders spaced apart along a second direction, and each slider is slidably engaged with a guide rail 41.

[0102] Optionally, the bottom of the support 6 is also provided with at least two locking plates 64. For example, taking two locking plates 64 as an example, the two locking plates 64 are arranged on opposite sides of the base frame 1 along the second direction. Each locking plate 64 is located outside the guide rail 41 on the corresponding side. For specific settings, please refer to the relevant description of the locking plate 232 above, which will not be repeated here. At least one positioning member is provided on each locking plate 64. The positioning member is located outside the guide rail 41. The positioning member can move relative to the locking plate 64 to approach and abut against the guide rail 41, so that the support 6 is relatively fixed to the guide rail 41, and the position of the support 6 relative to the guide rail 41 in the first direction is fixed; or, the positioning member can also move relative to the locking plate 64 away from the guide rail 41 to unlock the support 6.

[0103] Figure 7 This is a schematic diagram of the clamping mechanism 3 in this embodiment. Figure 8 for Figure 1 Enlarged structural diagram at point B.

[0104] refer to Figures 1-3 , Figure 7 and Figure 8 In this embodiment, each clamping mechanism 3 includes a limiting block 31 and a clamping component 32 movably disposed on the base frame 1. The limiting block 31 and the clamping component 32 are distributed along the second direction. This design allows the two to approach each other, thereby pressing and fixing the second beam 220 to prevent the second beam 220 from shifting and affecting the subsequent welding effect. Alternatively, the limiting block 31 and the clamping component 32 can move away from each other to facilitate the picking and placing of the second beam 220. Furthermore, the above design allows the position of the limiting block 31 and the clamping component 32 relative to the base frame 1 in the second direction to adapt to frames of different sizes and structures, meet the processing needs of various frames, and have high versatility and flexibility. It can also improve the utilization rate of the welding auxiliary tooling 100, avoid idleness, save resources, and reduce production costs.

[0105] Specifically, each limiting block 31 is movably connected to its corresponding support seat 6 and can move relative to the support seat 6 along the second direction, thereby making the position of each limiting block 31 adjustable in the second direction. For example, the support seat 6 is provided with slide rails 61 on opposite sides along the first direction, and each limiting block 31 slides in cooperation with the slide rail 61. The slide rail 61 can be a groove with an open top.

[0106] Optionally, the support base 6 is provided with a plurality of fixing holes 62 spaced apart along the second direction, and the limiting block 31 is provided with a limiting groove with a bottom opening. A limiting member passes through each limiting groove and one of the fixing holes 62. The limiting member is used to detachably connect the limiting block 31 and the support base 6. In this design, after the limiting block 31 is adjusted to the position, the limiting member can be used to limit and fix the limiting block 31 on the support base 6 to fix the position of the limiting block 31 in the second direction and improve the stability of the limiting block 31; or, by removing the limiting member from the limiting block 31 and the support base 6, the limiting block 31 can be unlocked, allowing the limiting block 31 to move along the slide rail 61 to facilitate the adjustment of the position of the limiting block 31 in the second direction.

[0107] Specifically, the support base 6 has multiple fixing holes 62 spaced apart along the second direction on both sides along the first direction. The fixing holes 62 located on the lateral side of the support base 6 are arranged corresponding to a slide rail 61, that is, each fixing hole 62 and the corresponding slide rail 61 are connected vertically. Each clamping mechanism 3 includes two limiting blocks 31 arranged spaced apart along the first direction, and each limiting block 31 is slidably engaged with a slide rail 61.

[0108] The limiting component can be a bolt, rivet, etc.

[0109] The fixing hole 62 is an oblong hole, the length of which extends along the second direction, so that the position of the limiting member on the support 6 along the second direction is adjustable to accommodate the connection and fixation between the limiting block 31 and the support 6 after the position adjustment is completed. In other embodiments, the fixing hole 62 may also be a circular hole, etc.

[0110] In this embodiment, the limiting block 31 includes a support wall 311 and a limiting wall 312 that are perpendicular to each other. The support wall 311 is used to support the second beam 220, and the limiting wall 312 is disposed at one end of the support wall 311 along the second direction to abut against the second beam 220. That is, the limiting block 31 is L-shaped, and its support wall 311 and limiting wall 312 cooperate to limit the reference position of the second beam 220.

[0111] The support wall 311 is flush with the supporting wall 211, so that the first beam 210 and the second beam 220 can be located in the same horizontal plane, which helps to improve the positioning accuracy of the first beam 210 and the second beam 220 and ensure the yield of frame processing.

[0112] In this embodiment, the clamping component 32 is located on the side of the support wall 311 of the limiting block 31 away from the supporting wall 211. Each clamping component 32 is movably connected to the corresponding bearing seat 6 and can move relative to the bearing seat 6 along the second direction, so that the position of each clamping component 32 in the second direction is adjustable. Specifically, the clamping mechanism 3 also includes a support seat 33, which has a receiving groove with a bottom opening for receiving the clamping component 32. The clamping component 32 is fixedly connected to the support seat 33, and the bottom ends of the support seat 33 along the first direction slide in a one-to-one correspondence with the two slide rails 61 of the bearing seat 6.

[0113] Each support base 33 has a connecting groove with a bottom opening. Each connecting groove corresponds to a locking member inserted into a fixing hole 62. The locking member is used to detachably connect the support base 33 and the carrier 6. In this design, after the clamping assembly 32 is adjusted to the correct position, it can be locked and fixed to the carrier 6 by the locking member to fix the position of the clamping assembly 32 in the second direction and improve the stability of the clamping assembly 32; or, by removing the locking member from the clamping assembly 32 and the carrier 6, the clamping assembly 32 can be unlocked, allowing it to move along the slide rail 61 to facilitate position adjustment in the second direction. Specifically, the support base 33 has connecting grooves at both ends along the first direction.

[0114] The locking components can be bolts, rivets, etc.

[0115] In this embodiment, the clamping assembly 32 includes a power component 321 and a clamping component 322.

[0116] The power component 321 is movably mounted on the support base 6, and the power shaft of the power component 321 faces the limiting block 31. Specifically, the power component 321 is housed in the support base 33 and is fixedly connected to the support base 33, and its power shaft extends out of the support base 33 in the direction of the limiting block 31.

[0117] The clamping member 322 is fixed on the power shaft of the power member 321. The power member 321 is used to drive the clamping member 322 to move along the second direction to approach the limiting block 31, so that the clamping member 322 cooperates with the limiting block 31 to clamp and fix the second beam 220, or to move the clamping member 322 away from the limiting block 31 to facilitate the picking and putting of the second beam 220.

[0118] Optionally, the clamping assembly 32 further includes a support rod 323 and a slide 324. The slide 324 is located on top of the power member 321. One end of the support rod 323 passes through the slide 324 and slides in cooperation with it, while the other end is connected to the clamping member 322. The support rod 323 extends along the second direction. In this design, when the power shaft of the power member 321 extends or retracts to drive the clamping member 322 to move along the second direction, the support rod 323 slides relative to the slide 324, which can guide the movement of the clamping member 322. At the same time, the support rod 323 can also support the clamping member 322, improving its stability and effectively enhancing the clamping effect of the clamping member 322 on the second beam 220.

[0119] Optionally, the clamping mechanism 3 may further include a resisting component 34, which may be located on the same side of the limiting block 31 as the clamping component 32, or the resisting component 34 may be located on opposite sides of the limiting block 31 along the second direction as the clamping component 32.

[0120] In this embodiment, the abutment component 34 is movably connected to the support base 6, allowing the abutment component 34 to move relative to the support base 6 in a second direction, thereby making the position of the abutment component 34 adjustable in the second direction. The abutment component 34 includes a transmission member 341 and an abutment member 342.

[0121] In this configuration, when the abutment component 34 and the clamping component 32 are located on the same side of the limiting block 31, the transmission component 341 is positioned above the clamping component 32. Specifically, the transmission component 341 is connected and fixed to the top of the support base 33. The abutment component 342 is fixed to the transmission shaft of the transmission component 341, and is positioned above the limiting block 31. The transmission component 341 drives the abutment component 342 to move up and down to approach the limiting block 31 and abut against the top of the second beam 220, or to move away from the limiting block 31. For ease of description, the abutment component 34 is defined as the first abutment component 34a. The structure of the first abutment component 34a can be referred to the relevant description of the structure of the clamping component 25 above, and will not be repeated here. It should be noted that the difference between the first abutment component 34a and the clamping component 25 is only that the transmission component 341 of the first abutment component 34a is arranged in a state extending along the second direction, while the driving component 251 of the clamping component 25 is arranged in a state extending vertically.

[0122] Since the support base 33 is movably connected to the carrier base 6, the first abutment component 34a disposed on the support base 33 can move along the carrier base 6 with the support base 33 to adjust its position in the second direction.

[0123] When the abutment component 34 and the clamping component 32 are arranged on opposite sides of the limiting block 31 along the second direction, for ease of description, the abutment component 34 is defined as the second abutment component 34b.

[0124] Figure 9 This is a partial structural diagram of the welding auxiliary tooling 100 in this embodiment.

[0125] refer to Figure 9 In the first abutment assembly 34b, the transmission member 341 passes through the bearing seat 6, and the abutment member 342 is fixed on the transmission shaft of the transmission member 341. The transmission member 341 is used to drive the abutment member 342 to rotate above the limiting block 31 to abut the top of the second beam 220, or away from the limiting block 31.

[0126] Regarding the movable connection between the second abutment component 34b and the support seat 6: In this case, the clamping mechanism 3 also includes a support seat 35, which is movably disposed on the top of the support seat 6. The transmission component 341 passes through the support seat 35 and is fixedly connected to it. The abutment component 342 is located above the support seat 35. Optionally, the support seat 6 is provided with a through hole 63 extending along the second direction. The transmission component 341 passes through the through hole 63 and can move within it to avoid interference between the transmission component 341 and the support seat 6, ensuring smooth movement of the transmission component 341.

[0127] In the second abutment assembly 34b, the abutment member 342 includes an extension block 3421 and abutment posts 3422. One end of the extension block 3421 is fixedly connected to the drive shaft, and the other end is detachably connected to the abutment post 3422. The abutment post 3422 is located at the bottom of the extension block 3421 and is used to abut the top of the second beam 220. Each second abutment assembly 34b is equipped with multiple sets of abutment posts 3422, and the lengths of each set of abutment posts 3422 are different to accommodate second beams 220 of different heights. In other embodiments, the second abutment assembly 34b may also refer to the structure and arrangement of the clamping assembly 22.

[0128] Specifically, in each row of clamping mechanisms 3, the abutting component 34 of one of the clamping mechanisms 3 located on the outer side of the base frame 1 along the second direction is the second abutting component 34b, and the rest are the first abutting components 34a. Since the transmission component 341 of the second abutting component 34b is arranged vertically, the second abutting component 34b can occupy less space, thereby reducing the space occupied by the entire welding auxiliary tooling 100.

[0129] In other embodiments, each row of clamping mechanisms 3 may all employ a first abutting component 34a, or all may employ a second abutting component 34b.

[0130] refer to Figures 1-3 Optionally, the welding auxiliary tooling 100 also includes multiple clamping components, each clamping component is set at one corner of the frame, each clamping component is connected to the base frame 1, and the multiple clamping components are used to clamp the frame to further improve the clamping stability of the frame.

[0131] The multiple clamping assemblies include two first clamping assemblies 71 and two second clamping assemblies 72. The two first clamping assemblies 71 are arranged corresponding to the second beams 220 located outside the two first beams 210, and the two second clamping assemblies 72 are arranged one-to-one with the second ends of the two first beams 210 of the frame.

[0132] refer to Figures 1-3 Each first clamping assembly 71 includes a first movable seat 711, an output component 712, and a clamping component 713.

[0133] The first movable seat 711 is movably connected to the base frame 1 and can move relative to the base frame 1 in a first direction, and the first movable seat 711 protrudes outward from the base frame 1 in a second direction. Specifically, the first movable seat 711 is detachably connected to the mounting seat 23 of one of the clamping mechanisms 2 located near one end of the base frame 1 in the second direction. This allows for easy selection of the setting position of the first clamping assembly 71 according to actual needs, in order to adapt to the processing requirements of frames of different sizes. At the same time, the first movable seat 711 can move relative to the base frame 1 along with the mounting seat 23.

[0134] The output component 712 is mounted on the first movable base 711, with its output shaft facing the base frame 1. Optionally, the output component 712 is movably connected to the first movable base 711, allowing the output component 712 to move relative to the first movable base 711 in a second direction, thereby achieving positional adjustability of the output component 712 in the second direction. The movable connection method between the output component 712 and the first movable base 711 can be referenced to the movable connection method between the clamping assembly 32 and the support base 6 described above, and will not be repeated here.

[0135] The clamping member 713 is disposed on the output shaft of the output member 712. The output member 712 is used to drive the clamping member 713 to move along the second direction to approach or move away from the second beam 220. The structure of the clamping member 713 and the connection method of the other output members 712 can be referred to the relevant description of the clamping assembly 32 above, and will not be repeated here.

[0136] Figure 10 This is a schematic diagram of the structure of the second clamping component 72 in this embodiment.

[0137] refer to Figures 1-3 , Figure 10 Each of the second clamping components 72 includes a second movable seat 721 and a first clamping block 722.

[0138] The second movable seat 721 is movably connected to the base frame 1 and can move relative to the base frame 1 in a first direction, while the first movable seat 711 protrudes outward from the base frame 1 in a second direction. Specifically, the second movable seat 721 is detachably connected to the mounting seat 23 of one of the clamping mechanisms 2 located near the end of the base frame 1 opposite to the first movable seat 711 in the second direction. This allows for easy selection of the setting position of the second clamping assembly 72 according to actual needs, to adapt to the processing requirements of frames of different sizes. At the same time, the second movable seat 721 can move relative to the base frame 1 along with the mounting seat 23.

[0139] The first clamping block 722 is movably disposed on the second movable seat 721 and can move relative to the second movable seat 721 in a second direction. The first clamping block 722 is used to abut the second end of the first beam 210. The movable connection between the first clamping block 722 and the second movable seat 721, as well as the fixing after movement, can be referred to the connection form between the limiting block 31 and the bearing seat 6 described above, and will not be repeated here.

[0140] Specifically, the first clamping block 722 includes a first wall 7221, a second wall 7222, and a third wall 7223 that are perpendicular to each other. The first wall 7221 extends horizontally and is flush with the supporting wall 211 and the supporting wall 311, and is used to support the first beam 210. The second wall 7222 is located at the end of the first wall 7221 away from the base frame 1, and protrudes upward from the first wall 7221. The second wall 7222 is used to abut against the side of the second end of the first beam 210 away from the base frame 1. The third wall 7223 is located at the end of the first wall 7221 away from the other clamping assembly along a first direction, and is located at the end of the second wall 7222 facing the base frame 1. The third wall 7223 is used to abut against the side of the first beam 210 away from the second beam 220 along the first direction.

[0141] Optionally, the second clamping assembly 72 further includes a second clamping block 723, which is movably mounted on the second movable seat 721. This allows the second clamping block 723 to move relative to the second movable seat 721 along a second direction, enabling the position of the second clamping block 723 to be adjustable in the second direction. This facilitates the processing of frames of different sizes and specifications. The movable connection between the second clamping block 723 and the second movable seat 721, as well as the fixing after movement, can be referenced from the connection between the limiting block 31 and the bearing seat 6 described above, and will not be elaborated further here.

[0142] The second clamping block 723 is spaced apart from the first clamping block 722 on the side near the base frame 1. The second clamping block 723 is used to abut against the outer side of the first beam 210 along the first direction. Specifically, the second clamping block 723 includes a horizontal wall 7231 and a vertical wall 7233 that are perpendicular to each other. The horizontal wall 7231 extends horizontally and is flush with the first wall 7221, and is used to support the first beam 210. The vertical wall 7233 is located on the side of the horizontal wall 7231 along the first direction. The vertical wall 7233 and the third wall 7223 are located on the same vertical plane. The vertical wall 7233 protrudes upward from the horizontal wall 7231 and is used to abut against the outer side of the first beam 210 along the first direction.

[0143] refer to Figure 1 Optionally, the welding fixture also includes a control component 8, which is located at the bottom of the base frame 1, on the side of the connecting beam 141 of the cable tray 14 away from the cable tray beam 142.

[0144] The control unit 8 is communicatively connected to each clamping mechanism 2, each holding mechanism 3, and each first clamping assembly 71, and is used to control the opening and closing of each clamping mechanism 2, each holding mechanism 3, and each first clamping assembly 71. Specifically, the control unit 8 is communicatively connected to the moving part 52, the driving part 251, the power part 321, the transmission part 341, and the output part 712.

[0145] The welding fixture also includes multiple first sensors. Each positioning block 21 and each limiting block 31 is respectively provided with a first sensor. The first sensor arranged in the positioning block 21 is used to detect the position signal of the first beam 210, and the first sensor arranged in the limiting block 31 is used to detect the position signal of the second beam 220.

[0146] Each first sensor is communicatively connected to the control unit 8. Specifically, the control unit 8 is communicatively connected to each first sensor via cables. At this time, the cable tray 14 can be used for cable arrangement to organize the cables and optimize the layout. That is, the cables can enter the wiring channel through the wiring hole 1411, and extend out of the cable tray 14 through one of the wiring holes 1421 as needed to connect to the corresponding first sensor.

[0147] The welding fixture also includes multiple second sensors. Each clamping component 22 and each clamping component 32 is respectively provided with a second sensor. The second sensor provided for the clamping component 22 is used to detect the clamping force signal of the clamping component 22, and the second sensor provided for the clamping component 32 is used to detect the clamping force signal of the clamping component 32.

[0148] Each second sensor is communicatively connected to the control unit 8. Specifically, the control unit 8 is communicatively connected to each second sensor via cables. At this time, the cable tray 14 can be used for cable arrangement to organize the cables and optimize the layout. That is, the cables can enter the wiring channel through the wiring hole 1411, and extend out of the cable tray 14 through one of the wiring holes 1421 as needed to connect to the corresponding second sensor.

[0149] This application also provides a welding system for automated welding of frames.

[0150] The welding system includes a gripping robot, a welding robot, and a welding auxiliary fixture 100. The gripping robot grips the first beam 210 and the second beam 220 onto the welding auxiliary fixture 100, which clamps and fixes the first beam 210 and the second beam 220. The welding robot welds the beams together to form a frame.

[0151] The control unit 8 of the welding auxiliary tooling 100 is connected to the gripping robot and the welding robot for communication.

[0152] In practical applications, the control unit 8 can control the actions of the gripping robot, the welding robot, and the corresponding moving parts 52, driving parts 251, power parts 321, transmission parts 341, and output parts 712 based on the signals from each of the first and second sensors, which is beneficial for realizing the automation of the welding system.

[0153] Specifically, the frame structure is pre-set within the control component 8, and the clamping force preset values ​​for each clamping component 25, clamping component 32, pressing component 22, and first clamping component 71 are also pre-set within the control component 8. Based on the frame structure, the gripping robot is controlled to grip the first beam 210 and the second beam 220 to their corresponding positions on the welding auxiliary fixture 100. The control component 8 determines whether the first beam 210 or the second beam 220 is in place based on the signal from the first sensor. After receiving the placement information, the gripping robot continues to grip and place the next first beam 210 or the next second beam 220 until the desired frame shape is achieved.

[0154] After the frame is placed, taking the clamping mechanism 2 as an example, if the first sensor does not detect a position signal of the first beam 210 at the positioning block 21, the drive member 251 of the clamping assembly 25 remains closed. When at least one of the first sensors in a row detects a position signal of the first beam 210 at the positioning block 21, the controller controls the moving member 52 to drive the clamping assembly 22 to approach and press against the first beam 210 according to the signal. At the same time, the controller controls the drive member 251 of the clamping assembly 25 to drive the clamping member 252 to descend to press against the first beam 210. When the clamping force signals detected by each second sensor reach the preset value, the controller controls the drive member 251 and the moving member 52 to close, completing the clamping and fixing operation of the first beam 210.

[0155] For the control of each clamping mechanism 3, please refer to the clamping mechanism 2, which will not be described in detail here.

[0156] After the frame is clamped and fixed, the control unit 8 controls the welding robot to perform the welding operation.

[0157] As can be seen from the above technical solution, the present invention has at least the following advantages and positive effects: In this application, since the positioning blocks and clamping components of each clamping mechanism are movably mounted on the base frame, both can move relative to the base frame along the first direction to approach each other, thereby clamping and fixing the first beam to prevent the first beam from shifting and affecting the subsequent welding effect. Alternatively, the positioning blocks and clamping components can move away from each other to facilitate the picking and placing of the first beam. At the same time, since the limiting blocks and clamping components of each clamping mechanism are movably mounted on the base frame, both can move relative to the base frame along the second direction to approach each other, thereby clamping and fixing the second beam to prevent the second beam from shifting and affecting the subsequent welding effect. Alternatively, the limiting blocks and clamping components can move away from each other to facilitate the picking and placing of the second beam.

[0158] Furthermore, the above design allows for the adjustment of the position of the positioning block and clamping assembly relative to the base frame in the first direction, and the position of the limiting block and clamping assembly relative to the base frame in the second direction, in order to adapt to frames of different sizes and structures, meet the processing needs of various frames, have high versatility and flexibility, and can also improve the utilization rate of welding auxiliary tooling, avoid idleness, save resources, and reduce production costs.

[0159] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A welding auxiliary fixture for welding a frame, the frame comprising a plurality of first beams spaced apart along a first direction and a plurality of second beams spaced apart along a second direction, characterized in that, The welding auxiliary tooling includes: Base frame; Multiple clamping mechanisms; each clamping mechanism includes a positioning block and a clamping assembly movably disposed on the base frame, the positioning block and the clamping assembly being distributed along a first direction; Multiple clamping mechanisms; each clamping mechanism includes a limiting block and a clamping assembly movably disposed on the base frame, the limiting block and the clamping assembly being distributed along a second direction; Among the plurality of clamping mechanisms, at least one clamping mechanism corresponds to a first beam, and the positioning block and the clamping assembly can approach each other to clamp the first beam from both sides along a first direction; among the plurality of clamping mechanisms, at least one clamping mechanism corresponds to a second beam, and the limiting block and the clamping assembly can approach each other to clamp the second beam from both sides along a second direction.

2. The welding auxiliary tooling according to claim 1, characterized in that, The clamping assembly includes a base and an elastic clamping member disposed on the base. The base is movably connected to the base frame. The elastic clamping member is disposed on the upper part of the base and can elastically extend and retract along a first direction to elastically abut against the first beam.

3. The welding auxiliary tooling according to claim 2, characterized in that, The elastic clamping member includes a pressing post and an elastic body. The pressing post passes through the base and slides with the base. The elastic body is sleeved on the pressing post, and its axial ends are respectively connected to the pressing post and the base. The elastic body elastically expands and contracts as the pressing post slides relative to the base in a first direction.

4. The welding auxiliary tooling according to claim 2, characterized in that, Multiple clamping mechanisms are arranged in an array on the base frame; The welding auxiliary tooling also includes multiple moving components, each of which corresponds to a row of clamping mechanisms arranged along a first direction; each moving component includes a connecting frame and a moving part, the connecting frame is connected and fixed to the top of a row of bases arranged along the first direction, the moving part is fixed to one end of the base frame along the first direction, the output end of the moving part is fixed to the end of the connecting frame along the first direction, and the moving part is used to drive the connecting frame to move along the first direction.

5. The welding auxiliary tooling according to claim 4, characterized in that, The connecting frame is detachably connected to the base; The connecting frame includes two connecting rods spaced apart along a second direction and a fixing rod connected to the ends of the two connecting rods along a first direction. The fixing rod is fixed to the drive shaft of the moving part. Each of the connecting rods is provided with a plurality of connecting hole groups spaced apart along a first direction, and each connecting hole group corresponds to a base; the base is provided with through holes at both ends along a second direction, and fasteners are inserted into each through hole and the corresponding connecting hole group, and the fasteners are used to connect and fix the base and the connecting rod; The connecting hole group includes a plurality of connecting holes spaced apart along a first direction, or the connecting hole group is an oblong hole whose length extends along the first direction, so that the position of the fastener on the connecting rod along the first direction is adjustable.

6. The welding auxiliary tooling according to claim 1, characterized in that, The positioning block includes a support wall and a positioning wall that are perpendicular to each other. The support wall is used to support the first beam, and the positioning wall is located at the end of the support wall away from the clamping assembly and is used to abut against the first beam. The limiting block includes a support wall and a limiting wall that are perpendicular to each other. The support wall is used to support the second beam, and the limiting wall is disposed at the end of the support wall away from the clamping assembly and is used to abut against the second beam. The supporting wall and the backing wall are flush.

7. The welding auxiliary tooling according to claim 1, characterized in that, The clamping mechanism includes a mounting base, which is movably connected to the base frame; the positioning block protrudes from the top of the mounting base. The clamping mechanism further includes a clamping component, which includes a driving member and a clamping member. The driving member is disposed on the mounting base and is located on the side of the positioning block away from the clamping component. The driving member is driven to connect with the clamping member to drive the clamping member to move up and down, so that the clamping member approaches and abuts the top of the first beam or moves away from the first beam.

8. The welding auxiliary tooling according to claim 7, characterized in that, Multiple clamping mechanisms are arranged in an array on the base frame; The welding auxiliary tooling also includes a plurality of guide members, which are spaced apart on the top of the base frame along the second direction. Each guide member is slidably engaged with a row of clamping mechanisms distributed along the first direction. Each of the clamping mechanisms further includes a locking member, at least one of the locking members is provided on the mounting base, and the locking member is located outside the guide member; the locking member is movable to approach and abut against the guide member or move away from the guide member.

9. The welding auxiliary tooling according to claim 1, characterized in that, The multiple clamping mechanisms are arranged in an array; The welding auxiliary tooling also includes multiple support seats, and a row of clamping mechanisms distributed along the second direction is correspondingly arranged on one of the support seats. The support seats are movably connected to the base frame and can move relative to the base frame along the first direction. Each of the limiting blocks and each of the clamping components are movably connected to the corresponding support seat, and are able to move relative to the support seat in the second direction.

10. The welding auxiliary tooling according to claim 9, characterized in that, The clamping assembly includes a power component and a clamping component. The power component is movably mounted on the support base, and the power shaft of the power component faces the limiting block. The clamping component is fixed to the power shaft of the power component. The power component is used to drive the clamping component to move along a second direction to approach or move away from the limiting block.

11. The welding auxiliary tooling according to claim 9, characterized in that, The clamping mechanism further includes a resisting component, which is located on the same side of the limiting block as the clamping component; The abutment assembly includes a transmission component and an abutment component. The transmission component is located above the clamping assembly, and the abutment component is fixed on the transmission shaft of the transmission component. The abutment component is located above the limiting block. The transmission component is used to drive the abutment component to move up and down to approach the limiting block and abut against the top of the second beam, or away from the limiting block.

12. The welding auxiliary tooling according to claim 11, characterized in that, The supporting component is movably connected to the bearing seat; The clamping mechanism further includes a support base, which has a receiving groove with a bottom opening for accommodating the clamping assembly, and the clamping assembly is connected and fixed to the support base; the bottom of the support base is movably connected to the bearing seat, and the abutment assembly is fixed to the top of the support base.

13. The welding auxiliary tooling according to claim 12, characterized in that, The support base is provided with a plurality of fixing holes spaced apart along the second direction; The support base is provided with a connecting groove with a bottom opening. Each connecting groove corresponds to a locking member passing through one of the fixing holes. The locking member is used to detachably connect the support base and the bearing base. The limiting block is provided with a limiting groove with a bottom opening. Each limiting groove corresponds to a limiting member passing through one of the fixing holes. The limiting member is used to detachably connect the limiting block and the bearing seat.

14. The welding auxiliary tooling according to claim 9, characterized in that, The clamping mechanism further includes a resisting component, which is arranged on opposite sides of the limiting block along the second direction, along with the clamping component. The abutment assembly includes a transmission component and an abutment component. The transmission component passes through the bearing seat, and the abutment component is fixed on the transmission shaft of the transmission component. The transmission component is used to drive the abutment component to rotate above the limiting block to abut the top of the second beam, or away from the limiting block.

15. The welding auxiliary tooling according to claim 14, characterized in that, The supporting component is movably connected to the bearing seat; The clamping mechanism further includes a support base, which is movably disposed on the top of the bearing seat. The transmission member passes through the support base and is connected and fixed to the support base. The abutment member is located above the support base. The support seat is provided with a through hole that extends along a second direction. The transmission member passes through the through hole and is able to move within the through hole.

16. The welding auxiliary tooling according to claim 1, characterized in that, The two first beams and the two second beams are connected end to end to form the frame of the frame. In the frame, one of the second beams is located outside the first end of the two first beams, and the other second beam is located between the second ends of the two first beams. The welding auxiliary tooling also includes multiple clamping components, each clamping component is provided corresponding to one corner of the frame, each clamping component is connected to the base frame, and the multiple clamping components are used to clamp the frame.

17. The welding auxiliary tooling according to claim 16, characterized in that, The plurality of clamping assemblies include two first clamping assemblies and two second clamping assemblies; the two first clamping assemblies are arranged corresponding to the second beams located outside the two first beams, and each first clamping assembly includes: The first movable seat is movably connected to the base frame and can move relative to the base frame in a first direction, and the first movable seat protrudes outward from the base frame in a second direction; An output component is disposed on the first movable seat, and the output shaft of the output component faces the base frame; A clamping member is disposed on the output shaft of the output member, and the output member is used to drive the clamping member to move along the second direction to approach and abut against the second beam, or to move away from the second beam.

18. The welding auxiliary tooling according to claim 17, characterized in that, The two second clamping components are arranged in a one-to-one correspondence with the second ends of the two first beams of the frame; Each of the second clamping components includes a second movable seat and a first clamping block. The second movable seat is movably connected to the base frame and can move relative to the base frame in a first direction, and the first movable seat protrudes outward from the base frame in a second direction. The first clamping block is movably disposed on the second movable seat and can move relative to the second movable seat in a second direction. The first clamping block is used to abut against the second end of the first beam. The second clamping assembly further includes a second clamping block, which is movably disposed on the second movable seat. The second clamping block is spaced apart on the side of the first clamping block near the base frame and is used to abut against the outer side of the first beam along the first direction.

19. The welding auxiliary tooling according to claim 1, characterized in that, The welding fixture also includes a control component, which is communicatively connected to each of the clamping mechanisms and each of the holding mechanisms. The welding fixture also includes a plurality of first sensors. Each positioning block and each limiting block are respectively provided with a first sensor. The first sensor is used to detect the position signal of the first beam or the second beam. Each first sensor is communicatively connected to the control component. The welding fixture also includes multiple second sensors. Each clamping component and each clamping component is provided with a corresponding second sensor. The second sensor is used to detect the clamping force signal of the clamping component and the clamping component. Each second sensor is communicatively connected to the control component.

20. A welding system, characterized in that, The system includes a gripping robot, a welding robot, and a welding auxiliary fixture as described in any one of claims 1 to 19. The gripping robot is used to grip the first beam and the second beam onto the welding auxiliary fixture, the welding auxiliary fixture is used to clamp and fix the first beam and the second beam, and the welding robot is used to weld to form a frame. The control components of the welding auxiliary fixture are respectively communicatively connected to the gripping robot and the welding robot.

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