Anti-deformation welding tooling

Abstract

The present application relates to welding tooling technical field, especially to a kind of anti-deformation welding tooling, comprising: bottom plate, the bottom plate is provided with placement assembly, the placement assembly is used to place multiple welding pieces;The placement assembly includes top plate, the top plate side edge is symmetrically opened with multiple installation ports, the installation port inside is provided with clamping assembly, and the clamping assembly is used to clamp welding piece;The clamping assembly includes two bases, two deflection plates, two clamping blocks and spring tube, two The base is fixedly connected on the bottom plate, and located the installation port directly below, two The deflection plate is rotatably connected on two bases, and is arranged in the installation port inside, two The clamping block is fixedly connected on two deflection plates mutually close one side.This application is controlled by a driving element to multiple clamping assemblies simultaneously, improves the efficiency of clamping, guarantees the synchronous same force clamping effect, improves the effect of welding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding tooling, in particular to a deformation-preventing welding tooling. BACKGROUND

[0002] In the process of welding the frame structure, the deformation-preventing welding tooling can minimize and control the deformation of the workpiece during and after welding, ensuring that the product meets the design requirements for geometric accuracy and dimensional stability.

[0003] The patent with publication number CN217254069U discloses a special tooling for preventing welding deformation of frame assemblies, which comprises a chassis, a plurality of positioning plates are fixed on the surface of the chassis in a transverse and equidistant manner, a lower U-shaped positioning clamping groove is symmetrically fixed at the top of each positioning plate, a through bolt is arranged on one side of the lower U-shaped positioning clamping groove, the frame assembly is clamped and fixed in the inner cavity of the lower U-shaped positioning clamping groove in cooperation with the through bolt, a plurality of pressing plates are arranged on the top of the frame assembly in a transverse and equidistant manner, and an upper U-shaped positioning clamping groove is symmetrically fixed at the bottom of each pressing plate. The above-mentioned patent fixes the positioning plates on the chassis, and then presses the frame assembly tightly through the pressing plates, so that the frame assembly is not easy to bend during welding, effectively clamps the parts, and prevents deformation caused by welding.

[0004] However, the above-mentioned device needs to use a large number of motors and cylinders for synchronous driving during welding. Since there are too many driving parts, not only is the cost of the tooling too high, but also when one of the driving parts is damaged, the positioning effect of the welded parts will be reduced, affecting the welding effect. SUMMARY

[0005] The purpose of the present application is to solve the problem of high cost of tooling in the prior art, and when one of the driving parts is damaged, the positioning effect of the welded parts will be reduced, affecting the welding effect. A deformation-preventing welding tooling is proposed.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A deformation-preventing welding tooling, comprising: a bottom plate, wherein a placing assembly is arranged on the bottom plate, and the placing assembly is used for placing a plurality of welded parts;

[0008] The placing assembly comprises a top plate, a plurality of installation openings are symmetrically formed in the side edges of the top plate, a clamping assembly is arranged in each installation opening, and the clamping assembly is used for clamping the welded parts;

[0009] The clamping assembly comprises two bases, two deflection plates, two clamping blocks and a spring tube, the two bases are symmetrically fixedly connected to the bottom plate and located directly below the mounting port, the two deflection plates are symmetrically rotationally connected to the two bases and arranged inside the mounting port, the two clamping blocks are symmetrically fixedly connected to one side of the two deflection plates away from each other, and the spring tube is fixedly connected between the lower ends of the two deflection plates.

[0010] The two deflection plates are both arranged in an inclined manner and form an inverted eight-shaped structure, and the side of the mounting port away from each other is arranged in an inclined manner, when the mounting port moves upwards, the two deflection plates are deflected towards the middle part to clamp the welded part.

[0011] Preferably, the placing assembly further comprises a telescopic column and a mounting plate, the middle part of the top plate is provided with a sliding port, the mounting plate is fixedly connected in the middle of the sliding port and fixedly connected with the bottom of the top plate, the middle part of the bottom plate is provided with a mounting groove, the telescopic column is arranged inside the mounting groove and the top part is fixedly connected with the mounting plate.

[0012] Preferably, the middle part of the top plate is provided with an opening, the side of the opening is symmetrically provided with two sliding grooves, and the sliding groove is provided with a middle fixing assembly, and the middle fixing assembly is used for clamping the welded part.

[0013] Preferably, the middle fixing assembly comprises a sliding plate, two sliding blocks, two fixing blocks and a tension spring, the two sliding blocks are symmetrically fixedly connected to the two ends of the sliding plate and respectively arranged in the two sliding grooves, four sliding grooves are arranged on the sliding plate, four fixing blocks are respectively arranged in the sliding grooves, and the two symmetrically arranged fixing blocks press and clamp the welded part from both sides, and the tension spring is fixedly connected between the two sliding blocks.

[0014] Preferably, a plurality of top outlets are arranged on the top plate, the top outlets are arranged between the two mounting ports, and the top outlet is provided with a ejection plate, the ejection plate is T-shaped and the bottom end is fixedly connected with the bottom plate.

[0015] Preferably, a plurality of top fixing assemblies are arranged on the side of the top plate, the top fixing assemblies are arranged on the side of the clamping assembly and used for fixing the welded part from above.

[0016] Preferably, the top fixing assembly comprises a rotating shaft seat, a resisting block and a rotating block, the rotating shaft seat is fixedly installed on the side of the top plate, the rotating block is fixedly connected on the side of the rotating shaft seat and located above the top plate, and the resisting block is fixedly connected on the bottom end of the rotating block.

[0017] Preferably, the side port and the pushing block are both horizontally arranged in a T shape, the pushing block is limitingly and slidingly arranged in the side port and used for pushing the resisting block to move, and the two first elastic sheets are fixedly connected between the pushing block and the side port.

[0018] Preferably, a plurality of said installation openings near the side of the chute are provided with a communication opening, and a limiting assembly is arranged inside the communication opening; two said limiting assemblies are symmetrically arranged to limit the position of the middle fixing assembly;

[0019] The limiting assembly comprises four second elastic sheets, two moving blocks and a limiting strip, two said second elastic sheets are fixedly connected to the side of the moving block and fixedly connected to the communication opening, two moving blocks are slidingly arranged inside the two symmetric communication openings, and the limiting strip is fixedly connected to the end of the two moving blocks.

[0020] Preferably, a strip-shaped opening is arranged in the middle of the deflection plate, the strip-shaped opening is located below the deflection plate, the opening width of the strip-shaped opening is greater than the width of the moving block and the pushing block, and the outer side is inclined.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] 1. A plurality of welding parts to be welded are placed between a plurality of clamping assemblies, when the top plate approaches the bottom plate, because the spring tube is in a force-free state, the deflection plates on both sides normally deflect to both sides, facilitating the placement of the welding parts, when the fixation begins, the top plate moves up, the position of the installation opening in contact with the deflection plate changes from the large opening above to the lower opening below, thereby extruding the two deflection plates to the middle, and the clamping of the welding parts is completed by the two internally deflected clamping blocks, the present application synchronously controls a plurality of clamping assemblies by one driving part, not only reducing the use of driving parts, but also improving the clamping efficiency, ensuring the synchronous and same force clamping effect, and improving the welding effect;

[0023] 2. According to the welding requirements, a plurality of middle fixing assemblies can be arranged inside the chute, thereby facilitating the clamping and limiting of a plurality of welding parts, in the limiting process, the two sliding blocks are pulled to the outside of the sliding groove, thereby forming a clamping space between the two fixing blocks, the welding parts are placed inside the clamping space, and the two fixing blocks are firmly clamped on the side of the welding parts by the contraction force of the extension spring, thereby completing the clamping and fixing of the welding parts, which is simple to operate, and the use requirements of welding at different positions are met by arranging the middle fixing assembly that can slide, thereby expanding the application range of the tooling;

[0024] 3. After the welding is completed, the top plate moves down, and the welded welding parts are lifted by a plurality of ejection plates, there is enough transfer space below, facilitating the rapid transfer by instruments or manually, thereby improving the rapid transfer of the welded welding parts after the welding is completed;

[0025] 4. The upper and lower movement of the top plate controls the top fixing assembly and the middle fixing assembly through the deflection plate, which reflects the linkage effect of the whole welding tool, can quickly realize various auxiliary functions, and improves the welding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A front structure diagram of a deformation-preventing welding tool is provided.

[0027] Figure 2 A placing assembly structure diagram of a deformation-preventing welding tool is provided.

[0028] Figure 3 A cross-section structure diagram of a deformation-preventing welding tool is provided.

[0029] Figure 4 A clamping assembly structure diagram of a deformation-preventing welding tool is provided.

[0030] Figure 5 A middle fixing assembly structure diagram of a deformation-preventing welding tool is provided.

[0031] Figure 6 A top fixing assembly structure diagram of a deformation-preventing welding tool is provided.

[0032] Figure 7 A cross-section structure diagram of a deformation-preventing welding tool is provided.

[0033] Figure 8 A pushing assembly structure diagram of a deformation-preventing welding tool is provided.

[0034] Figure 9 A limiting assembly structure diagram of a deformation-preventing welding tool is provided.

[0035] Figure 10 A clamping state change diagram of a deformation-preventing welding tool is provided.

[0036] In the figure: 1, bottom plate; 2, placing assembly; 21, top plate; 22, telescopic column; 23, mounting plate; 3, clamping assembly; 31, base; 32, deflection plate; 33, clamping block; 34, spring tube; 4, mounting port; 5, middle fixing assembly; 51, sliding plate; 52, sliding block; 53, fixed block; 54, tension spring; 6, top fixing assembly; 61, rotating shaft seat; 62, stop block; 63, rotating block; 7, pushing assembly; 71, first elastic sheet; 72, pushing block; 8, limiting assembly; 81, second elastic sheet; 82, moving block; 83, limiting strip; 9, ejection plate; 10, strip port. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0038] The terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present application are only for clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the scope of the present application without substantial change of the technical content.

[0039] Referring to Figures 1-10 A deformation-resistant welding tool, comprising a bottom plate 1, a placing assembly 2 is arranged on the bottom plate 1, and the placing assembly 2 is used for placing a plurality of welding pieces;

[0040] The placing assembly 2 comprises a top plate 21, a plurality of installation openings 4 are symmetrically arranged on the side edges of the top plate 21, a clamping assembly 3 is arranged in the installation openings 4, and the clamping assembly 3 is used for clamping the welding pieces;

[0041] The clamping assembly 3 comprises two bases 31, two deflection plates 32, two clamping blocks 33 and a spring pipe 34, the two bases 31 are symmetrically fixedly connected to the bottom plate 1 and located directly below the installation openings 4, the two deflection plates 32 are symmetrically rotationally connected to the two bases 31 and arranged in the installation openings 4, the two clamping blocks 33 are symmetrically fixedly connected to one side of the two deflection plates 32 close to each other, and the spring pipe 34 is fixedly connected between the lower ends of the two deflection plates 32;

[0042] The two deflection plates 32 are both arranged obliquely, and the two deflection plates 32 form an inverted eight-shaped structure, and the side of the installation openings 4 away from each other is arranged obliquely, when the installation openings 4 move upwards, the two deflection plates 32 are deflected to the middle part, and the welding pieces are clamped.

[0043] In the embodiment applying the above technical solution, the plurality of welding pieces to be welded are placed between the plurality of clamping assemblies 3, when the top plate 21 approaches the bottom plate 1, because the spring pipe 34 is in a force-free state, the two deflection plates 32 normally deflect to the two sides, and the welding pieces are conveniently placed, when the fixation is started, the top plate 21 moves upwards, the position of the installation openings 4 in contact with the deflection plates 32 changes from the large opening at the top to the small opening at the bottom, so that the two deflection plates 32 are pressed to the middle part, and the clamping of the welding pieces is completed by the two clamping blocks 33 deflected to the inside.

[0044] The application synchronously controls multiple clamping assemblies 3 through a driving member, thereby reducing the use of the driving member, improving the clamping efficiency, ensuring the synchronous and same-force clamping effect, and improving the welding effect.

[0045] The preferred technical solutions in the embodiment are as follows:

[0046] With reference to Figures 2-3 The placing assembly 2 further comprises a telescopic column 22 and a mounting plate 23, the middle part of the top plate 21 is provided with a sliding opening, the mounting plate 23 is fixedly connected in the middle of the sliding opening and fixedly connected with the bottom of the top plate 21, the middle part of the bottom plate 1 is provided with a mounting groove, and the telescopic column 22 is arranged inside the mounting groove and fixedly connected with the mounting plate 23 at the top.

[0047] During the process of limiting and clamping the welding pieces in different positions, the welding pieces need to be fixed separately, which results in slow clamping speed of the welding pieces, and multiple driving members are needed for driving control, which consumes a large amount of energy, and when one of the driving members fails, the welding effect of the whole frame will be affected.

[0048] Before welding, multiple welding pieces of the frame are placed in the positions of the corresponding clamping assemblies 3, the mounting plate 23 is driven by the telescopic column 22 to move up and down, thereby driving the top plate 21 to move up and down, and the moving top plate 21 can drive multiple clamping assemblies 3 to simultaneously clamp and fix multiple placed welding pieces, thereby reducing the use of the driving member, and simultaneously clamping and fixing multiple welding pieces synchronously, which improves the welding efficiency.

[0049] With reference to Figure 5 The middle part of the top plate 21 is provided with an opening, two sliding grooves are symmetrically arranged on the side of the opening, and a middle fixing assembly 5 is arranged inside the sliding groove.

[0050] The middle fixing assembly 5 comprises a sliding plate 51, two sliding blocks 52, two fixing blocks 53 and a tension spring 54, the two sliding blocks 52 are fixedly connected at the two ends of the sliding plate 51 and are slidably arranged in the two sliding grooves, respectively, four sliding grooves are arranged in the sliding plate 51, four fixing blocks 53 are slidably arranged in the sliding grooves, respectively, and the two symmetrically arranged fixing blocks 53 press and clamp the welding piece from both sides, and the tension spring 54 is fixedly connected between the two sliding blocks 52.

[0051] Because the positions of the welding pieces in the middle part of different frame structures are different, the welding tool is not convenient to fix the welding pieces welded in different positions, which causes the welding tool to have a small applicable range.

[0052] According to the welding requirements, a plurality of middle fixing assemblies 5 can be arranged in the sliding groove, so that a plurality of welding parts are clamped and limited. In the limiting process, the two sliding blocks 52 are pulled to the outside of the sliding groove, so that a clamping space is formed between the two fixing blocks 53. The welding part is placed in the clamping space, and the contraction force of the extension spring 54 is used to firmly clamp the two fixing blocks 53 on the side of the welding part, so that the clamping and fixing of the welding part are completed, and the operation is simple.

[0053] By arranging the middle fixing assembly 5 which can slide, the use requirement of welding at different positions is met, and the application range of the tooling is expanded.

[0054] Referring to Figure 4 The top plate 21 is provided with a plurality of top outlets, the top outlets are arranged between the two mounting ports 4, and the top outlets are provided with a top ejection plate 9. The top ejection plate 9 is T-shaped, and the bottom end is fixedly connected to the bottom plate 1.

[0055] Before welding, the welding part is arranged separately, and the overall weight is small. However, after welding is completed, the overall welding part has a large weight, and if it is placed on the welding frame, it is not convenient for the quick transfer of the workers.

[0056] When the welding part to be welded is placed, the welding part is placed on the plurality of top ejection plates 9, and during the movement of the top plate 21, the welding part placed on the top ejection plate 9 will be gradually transferred to the top plate 21. The clamping assembly 3 on both sides clamps the welding part for welding. After welding is completed, the top plate 21 moves downward, and the welded welding part is lifted by the plurality of top ejection plates 9. There is enough space for transfer below, which is convenient for quick transfer by instruments or manually, and the quick transfer of the welded welding part after welding is improved.

[0057] Referring to Figures 6-7 The top plate 21 is provided with a plurality of top fixing assemblies 6, and the top fixing assemblies 6 are arranged on the side of the clamping assembly 3 and used for fixing the welding part from above.

[0058] The top fixing assembly 6 comprises a rotating shaft seat 61, a resisting block 62 and a rotating block 63. The rotating shaft seat 61 is fixedly installed on the side of the top plate 21. The rotating block 63 is fixedly connected to the side of the rotating shaft seat 61 and located above the top plate 21. The resisting block 62 is fixedly connected to the bottom end of the rotating block 63.

[0059] In the welding process, in order to avoid the welding position of the welding part not being located in the same horizontal plane, synchronous clamping and fixing of the welding part needs to be carried out from the vertical direction. The rotating shaft seat 61 is provided with a torsional spring. When the telescopic column 22 is in the retracted state and the top plate 21 is located below, the rotating shaft seat 61 drives the rotating block 63 to offset outward, so as to facilitate the placement of the welding part above the ejection plate 9. When the welding starts, the telescopic column 22 moves upward, and the lower abutting block 62 is abutted outward, thereby driving the upper rotating block 63 to deflect inward. The clamping end of the rotating block 63 clamps and fixes the upper part of the welding part. During the welding process, all the welding parts are located in the same horizontal plane, and the deformation of the welding part is reduced.

[0060] Referring to Figure 8 , a plurality of side edges of the mounting hole 4 near the edge of the top plate 21 are provided with side openings, and the side openings are provided with a pushing assembly 7. The pushing assembly 7 is used to drive the top fixing assembly 6 to rotate;

[0061] The pushing assembly 7 includes two first elastic sheets 71 and a pushing block 72. The side opening and the pushing block 72 are both horizontally arranged in a T shape. The pushing block 72 is limitingly and slidably arranged in the side opening and is used to push the abutting block 62 to move. The two first elastic sheets 71 are fixedly connected between the pushing block 72 and the side opening.

[0062] The pushing assembly 7 is used to abut the abutting block 62 outward from the side edge, so as to complete the clamping of the welding part in the vertical direction. During the upward movement of the top plate 21, the side edge of the mounting hole 4 will extrude and deflect the deflection plates 32 on both sides. During the upward movement of the deflection plate 32, the pushing block 72 will be contacted, so as to push the pushing block 72 outward from the side opening. During the outward movement of the pushing block 72, the abutting block 62 of the top fixing assembly 6 is pushed, so as to complete the rapid clamping of the rotating block 63 to the clamping part. When the welding is completed, during the downward movement of the top plate 21, the pushing block 72 is reset under the action of the first elastic sheet 71.

[0063] The pushing assembly 7 is synchronously extruded and pushed by the upward and downward movement of the top plate 21, which reduces the use of the structure and can simultaneously control a plurality of top fixing assemblies 6.

[0064] Referring to Figure 9 , a plurality of side edges of the mounting hole 4 near the sliding groove are provided with communication openings, and the communication openings are provided with a limiting assembly 8. The two limiting assemblies 8 are symmetrically arranged and are used to limit the position of the middle fixing assembly 5.

[0065] The limiting assembly 8 comprises four second elastic sheets 81, two moving blocks 82 and a limiting strip 83, the two second elastic sheets 81 are fixedly connected to the side edges of the moving blocks 82 and fixedly connected with the communicating openings, the two moving blocks 82 are slidingly arranged in the two symmetrical communicating openings respectively, and the limiting strip 83 is fixedly connected to the end portions of the two moving blocks 82.

[0066] Since the middle fixing assembly 5 can slide quickly after fixing the middle welding piece, the position of the middle welding piece needs to be fixed during welding, and the moving deflection plate 32 will also push the moving block 82 outward of the communicating opening during welding, so that the limiting strip 83 is extruded with the sliding block 52, the two sliding blocks 52 are extruded, and the fixing of the middle fixing assembly 5 is completed, and the position of the middle fixing assembly 5 can be quickly changed after welding, which facilitates the quick adaptation to different welding frames.

[0067] Referring to Figures 8-10 The middle portion of the deflection plate 32 is provided with a strip-shaped opening 10, the strip-shaped opening 10 is located below the deflection plate 32, the opening width of the strip-shaped opening 10 is greater than the width of the moving block 82 and the pushing block 72, and the outer side edge is inclinedly arranged.

[0068] When the top plate 21 is located below, the pushing block 72 and the moving block 82 on both sides will move to the position of the deflection plate 32 due to the contraction of the elastic sheet, at this time, the pushing block 72 and the moving block 82 can move into the strip-shaped opening 10, thereby facilitating the resetting of the top fixing assembly 6 and the sliding of the middle fixing assembly 5, and during the upward movement of the top plate 21, the pushing block 72 and the moving block 82 gradually contact the deflection plate 32 on the inclined side of the strip-shaped opening 10, thereby being extruded outward by the deflection plate 32, and the control of the top fixing assembly 6 and the limiting of the middle fixing assembly 5 are completed.

[0069] Through the upward and downward movement of the top plate 21, the deflection plate 32 is used to synchronously control the top fixing assembly 6 and the middle fixing assembly 5, which embodies the linkage effect of the whole welding tool, can quickly realize various auxiliary functions, and improves the welding efficiency.

[0070] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A deformation-resistant welding fixture, comprising: The base plate (1) is characterized in that a placement component (2) is provided on the base plate (1), the placement component (2) being used to place multiple welded parts; The placement component (2) includes a top plate (21), and the top plate (21) has multiple mounting ports (4) symmetrically opened on its side. A clamping component (3) is provided inside the mounting port (4), and the clamping component (3) is used to clamp the welded parts. The placement component (2) also includes a telescopic column (22) and a mounting plate (23). The top plate (21) has a sliding opening in the middle. The mounting plate (23) is fixedly connected to the middle of the sliding opening and is fixedly connected to the bottom of the top plate (21). The bottom plate (1) has a mounting groove in the middle. The telescopic column (22) is set inside the mounting groove and its top is fixedly connected to the mounting plate (23). The clamping assembly (3) includes two bases (31), two deflection plates (32), two clamping blocks (33) and a spring tube (34). The two bases (31) are symmetrically fixedly connected to the base plate (1) and located directly below the mounting port (4). The two deflection plates (32) are symmetrically rotatably connected to the two bases (31) and are located inside the mounting port (4). The two clamping blocks (33) are symmetrically fixedly connected to the side of the two deflection plates (32) that are close to each other. The spring tube (34) is fixedly connected between the lower ends of the two deflection plates (32). Both deflection plates (32) are inclined and form an inverted V-shape. The mounting openings (4) are inclined on the side that is far apart from each other. When the mounting openings (4) move upward, they drive the two deflection plates (32) to deflect towards the center and clamp the welded parts. The top plate (21) is provided with a plurality of top fixing components (6) on its side. The top fixing components (6) are provided on the side of the clamping component (3) for fixing the welded parts from above. The top fixing assembly (6) includes a pivot seat (61), a stop block (62) and a rotating block (63). The pivot seat (61) is fixedly installed on the side of the top plate (21). The rotating block (63) is fixedly connected to the side of the pivot seat (61) and located above the top plate (21). The stop block (62) is fixedly connected to the bottom end of the rotating block (63). Multiple mounting ports (4) near the edge of the top plate (21) have side openings on their sides, and a pushing component (7) is provided inside the side opening. The pushing component (7) is used to drive the top fixing component (6) to rotate. The pushing component (7) includes two first elastic pieces (71) and a pushing block (72). The side opening and the pushing block (72) are both horizontally arranged T-shaped. The pushing block (72) is limited and slidably disposed inside the side opening to push the abutment block (62) to move. The two first elastic pieces (71) are fixedly connected between the pushing block (72) and the side opening.

2. The anti-deformation welding fixture according to claim 1, characterized in that, The top plate (21) has an opening in the middle, and two sliding grooves are symmetrically opened on the side of the opening. A central fixing component (5) is provided inside the sliding groove, and the central fixing component (5) is used to clamp the welded parts.

3. The anti-deformation welding fixture according to claim 2, characterized in that, The central fixing component (5) includes a sliding plate (51), two sliders (52), two fixing blocks (53) and a tension spring (54). The two sliders (52) are symmetrically fixedly connected to both ends of the sliding plate (51) and are respectively slidably arranged inside the two sliding grooves. Four sliding grooves are opened on the sliding plate (51). The four fixing blocks (53) are respectively slidably arranged inside the sliding grooves. The two symmetrically arranged fixing blocks (53) squeeze and clamp the welded parts from both sides. The tension spring (54) is fixedly connected between the two sliders (52).

4. The anti-deformation welding fixture according to claim 1, characterized in that, The top plate (21) has multiple top outlets, which are located between two mounting ports (4). The top outlets are equipped with a top plate (9), which is T-shaped and whose bottom end is fixedly connected to the bottom plate (1).

5. The anti-deformation welding fixture according to claim 3, characterized in that, Multiple mounting ports (4) near the slide are provided with connecting ports on their sides. Limiting components (8) are provided inside the connecting ports. Two limiting components (8) are symmetrically arranged to limit the position of the middle fixing component (5). The limiting component (8) includes four second elastic pieces (81), two moving blocks (82) and a limiting strip (83). The two second elastic pieces (81) are fixedly connected to the side of the moving blocks (82) and fixedly connected to the communication port. The two moving blocks (82) are slidably disposed inside the two symmetrical communication ports respectively. The limiting strip (83) is fixedly connected to the ends of the two moving blocks (82).

6. The anti-deformation welding fixture according to claim 5, characterized in that, The deflection plate (32) has a strip-shaped opening (10) in the middle. The strip-shaped opening (10) is located below the deflection plate (32). The opening width of the strip-shaped opening (10) is greater than the width of the moving block (82) and the pushing block (72), and the outer side is inclined.

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