A welding tool for sheet metal machining

Abstract

The application relates to the technical field of welding tooling, and discloses a welding tooling for sheet metal part machining, which comprises a workbench, the upper surface of the workbench is symmetrically provided with fixed plates on the left and right, fixed shafts are fixedly installed on the fixed plates, rotating plates are rotatably arranged outside the fixed shafts, supporting plates are fixedly installed on the rotating plates, a first motor is fixedly arranged at the middle position of the lower end of the workbench, and a connecting screw rod is fixedly installed at the output end of the first motor. The welding tooling for sheet metal part machining can realize the lifting of the connecting sleeve and the pushing plate through the rotation of the connecting screw rod, can realize the angle adjustment between the two supporting plates, can achieve the purpose of multi-angle welding, can drive the clamping plate to move through the rotation of the moving screw rod, can realize the clamping and fixing of the sheet metal part through the clamping plate, and can clampingly fix the fixed shaft and the rotating plate through the movement of the clamping plate, so that the stability of the rotating plate and the supporting plate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding tooling, in particular to a welding tooling for sheet metal part machining. BACKGROUND

[0002] Sheet metal parts are products processed by sheet metal technology, which include shearing, punching / cutting / compounding, folding, welding, riveting, splicing, forming and other operations. Sheet metal parts are widely used in various fields such as electronics and electrical appliances, communication, automobile industry, medical devices, aerospace, instruments and meters, home appliances, etc. Through welding, sheet metal parts can be assembled and fixed to ensure their stability during subsequent use.

[0003] At present, the patent with publication number CN218592235U discloses a welding tooling for sheet metal part machining, which includes a bottom frame, a top plate is lapped on the upper surface of the bottom frame, a H-shaped frame is fixedly connected to the upper surface of the bottom frame, positioning frames are fixedly connected to the left and right sides of the H-shaped frame, lead screws are rotatably connected to the inner walls of the two positioning frames, a first motor is fixedly connected to the side of any positioning frame, the output end of the first motor is fixedly connected to one end of the lead screw, movable plates are slidingly connected to the inner walls of the positioning frames, connecting rods are fixedly connected to the opposite surfaces of the two movable plates, side clamping plates are fixedly connected to the ends of the connecting rods away from the movable plates, and transmission assemblies are installed on the surfaces of the two lead screws.

[0004] However, the current welding tooling still has the following problems during use:

[0005] The above device uses a flat placement method to place the sheet metal parts before welding, which requires adjusting the specified angle of the two welded sheet metal parts during actual use, i.e., adjusting the welding angle between the two welded sheet metal parts. At this time, it is not possible to stably and standardly weld the sheet metal parts. SUMMARY

[0006] In view of the deficiencies of the prior art, the welding tool for sheet metal part machining is provided, the support plate for placing the sheet metal part is arranged as an adjustable structure, so that the welding angle between two sheet metal parts can be adjusted to ensure multi-angle welding between the sheet metal parts.

[0007] The welding tool for sheet metal part machining comprises a workbench, a fixed plate is symmetrically arranged on the upper surface of the workbench, a fixed rotating shaft is fixedly arranged on the fixed plate, a rotating plate is rotatably arranged on the fixed rotating shaft, a support plate is fixedly arranged on the rotating plate, a first motor is fixedly arranged at the middle position of the lower end of the workbench, a connecting screw rod is fixedly arranged at the output end of the first motor, a connecting sleeve is threadedly connected to the upper end of the connecting screw rod, a first belt pulley is fixedly arranged at the lower end position of the connecting screw rod, a pushing plate is fixedly arranged at the upper end of the connecting sleeve, the upper end of the pushing plate is attached to the support plate, a second motor is fixedly arranged at the lower end of the rotating plate, a moving screw rod is rotatably arranged on the rotating plate, the moving screw rod is rotatably arranged on the support plate, a clamping sliding block is arranged on the moving screw rod, a clamping plate is fixedly arranged at the upper end of the clamping sliding block, an extension plate is fixedly arranged on the side surface of the support plate, a supporting screw rod is rotatably arranged on the extension plate, a pressing plate is threadedly connected to the upper end of the supporting screw rod, an electric telescopic rod is fixedly arranged at the lower end of the pressing plate, and an attaching plate is fixedly arranged at the lower end of the electric telescopic rod.

[0008] Further, a first sliding groove is arranged at the middle position of the workbench, two first guide rods are symmetrically arranged at the lower surface of the pushing plate, and the first guide rods are slidably connected to the workbench through the first sliding groove arranged on the workbench.

[0009] Further, a left transverse gear is fixedly arranged at the output end of the second motor, a left vertical gear is meshingly arranged at the right side of the left transverse gear, the left transverse gear and the left vertical gear form a first gear set, the left vertical gear is fixedly arranged at the left side position of the moving screw rod, a right transverse gear is fixedly arranged at the right side of the moving screw rod, a right vertical gear is meshingly arranged at the right side of the right transverse gear, the right transverse gear and the right vertical gear form a second gear set, and the moving screw rod is rotatable, so that the clamping sliding block and the clamping plate are movable to clamp and fix the sheet metal part.

[0010] Further, a second belt pulley is coaxially arranged at the lower end of the right vertical gear, and the second belt pulley is fixedly arranged at the lower end position of the supporting screw rod, a first bearing is arranged at the middle position of the extension plate, and the supporting screw rod is rotatably connected to the extension plate through the first bearing arranged on the extension plate.

[0011] Further, the first pulley upper end is fixedly installed with a push screw, the workbench rear side is installed with a second bearing, and the push screw is rotatably connected with the workbench through the second bearing installed on the workbench, the push screw is threadedly connected with a receiving plate, the receiving plate lower end is symmetrically installed with a second guide rod on the left and right sides, the workbench rear side is provided with a second sliding groove, and the second guide rod is slidably connected with the workbench through the second sliding groove provided on the workbench. Through the above structure, the receiving plate can be moved up and down by rotating the push screw.

[0012] Further, the receiving plate upper surface is symmetrically installed with a supporting column on the left and right sides, and the supporting column upper end is fixedly installed with an additional plate, the additional plate right side is fixedly installed with a moving motor, and the moving motor output end is connected with a sliding block screw, the additional plate upper end is installed with a supporting bearing, and the sliding block screw is rotatably connected with the additional plate through the supporting bearing installed on the additional plate. Through the above structure, the welding head can be moved by rotating the sliding block screw, and the welding position can be fully welded.

[0013] Further, the additional plate upper end is slidably provided with a moving sliding block, the moving sliding block middle position is provided with a threaded hole, and the moving sliding block is connected with the sliding block screw through the threaded hole, the moving sliding block left upper end is fixedly installed with an adjusting motor. Through the above structure, the moving sliding block can be moved by rotating the sliding block screw, and the sliding block screw is supported without affecting the rotation of the sliding block screw.

[0014] Further, the adjusting motor output end is installed with a rotating gear, the rotating gear side surface is meshingly connected with a mounting rack, the mounting rack right side is provided with a first groove, the mounting rack lower end is provided with a second groove, the moving sliding block upper end middle position is fixedly installed with a second sliding rod, the second sliding rod is slidably connected with the mounting rack through the second groove, the moving sliding block upper end right side is fixedly installed with a first sliding rod, and the first sliding rod is slidably connected with the mounting rack through the first groove. The mounting rack front side position is fixedly installed with a welding head. Through the above structure, the mounting rack can be moved by moving the rotating gear, and the welding head can be moved.

[0015] Further, the clamping slider left side is fixedly installed with an adsorption magnet, and the clamping slider side is fixedly installed with a third sliding rod, and the third sliding rod and the supporting plate form a sliding connection, a square groove is formed in the rotating plate, a push spring is fixedly installed in the groove of the rotating plate, and a push guide plate is fixedly installed on the push spring, a positioning rod is fixedly installed on the push guide plate, and cylindrical positioning grooves are formed at equal angles on the fixed rotating shaft.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The welding tool for sheet metal part machining can realize lifting of the connecting sleeve and the push plate through rotation of the connecting screw rod, so that the supporting plate starts to rotate to adjust the angle between the two supporting plates and adjust the included angle between the two sheet metal parts, achieve the purpose of multi-angle welding, and through rotation of the moving screw rod, the clamping plate is driven to move, the sheet metal part is clamped and fixed through the clamping plate, the movement of the sheet metal part during welding is avoided, the fixed rotating shaft and the rotating plate can be clamped and fixed through the movement of the clamping plate, the stability of the rotating plate and the supporting plate is increased, and at the same time, the linkage pressing plate and the abutting plate move, so that the upper end of the sheet metal part can be abutted and fixed, through rotation of the rotating gear, the mounting rack starts to move, the welding head can be driven to move, and the two sheet metal parts can be fully welded through the movement of the welding head. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole three-dimensional structure schematic diagram of the present application;

[0019] Figure 2 It is a first electric motor three-dimensional structure schematic diagram of the present application;

[0020] Figure 3 It is a connecting sleeve three-dimensional sectional structure schematic diagram of the present application;

[0021] Figure 4 It is a moving screw rod three-dimensional structure schematic diagram of the present application;

[0022] Figure 5 It is a fixed rotating shaft three-dimensional sectional structure schematic diagram of the present application;

[0023] Figure 6 It is a first gear set three-dimensional structure schematic diagram of the present application;

[0024] Figure 7 It is a mounting rack three-dimensional structure schematic diagram of the present application;

[0025] Figure 8It is a schematic diagram of the three-dimensional profile structure of the sliding block screw of the present application.

[0026] Figure 9 It is a schematic diagram of the three-dimensional profile structure of the three-dimensional profile structure of the present application.

[0027] In the figure: 1, workbench; 2, fixed plate; 3, fixed rotating shaft; 4, rotating plate; 5, support plate; 6, first motor; 7, connecting screw; 8, first belt pulley; 9, connecting sleeve; 10, push plate; 11, first guide rod; 12, second motor; 13, first gear set; 131, left horizontal gear; 132, left vertical gear; 14, moving screw; 15, second gear set; 151, right horizontal gear; 152, right vertical gear; 16, second belt pulley; 17, support screw; 18, extension plate; 19, pressing plate; 20, fitting plate; 21, push screw; 22, receiving plate; 23, second guide rod; 24, support column; 25, additional plate; 26, moving motor; 27, sliding block screw; 28, moving sliding block; 29, adjusting motor; 30, rotating gear; 31, mounting rack; 311, first groove; 312, second groove; 32, first sliding rod; 33, second sliding rod; 34, clamping sliding block; 35, clamping plate; 36, adsorbing magnet; 37, push spring; 38, push guide plate; 39, positioning rod; 40, third sliding rod; 41, welding head. DETAILED DESCRIPTION

[0028] 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 part of the embodiments of the present application, rather than all the embodiments of the present application.

[0029] Please refer to Figures 1-9 The present application provides a technical solution: a welding tool for sheet metal part machining, comprising a workbench 1, the upper surface of which is symmetrically provided with a fixed plate 2, and the fixed plate 2 is fixedly provided with a fixed rotating shaft 3, the outer part of the fixed rotating shaft 3 is rotatably provided with a rotating plate 4, the rotating plate 4 is fixedly provided with a support plate 5, the lower end of the workbench 1 is fixedly provided with a first motor 6, the output end of the first motor 6 is fixedly provided with a connecting screw 7, the upper end of the connecting screw 7 is threadedly connected with a connecting sleeve 9, the lower end of the connecting screw 7 is fixedly provided with a first belt pulley 8, the upper end of the connecting sleeve 9 is fixedly provided with a push plate 10, the upper end of the push plate 10 is in close contact with the support plate 5, a first sliding groove is formed in the middle of the workbench 1, two first guide rods 11 are symmetrically arranged on the lower surface of the push plate 10, and the first guide rods 11 are slidably connected with the workbench 1 through the first sliding groove formed in the workbench 1.

[0030] When the welding angle between two sheet metal parts needs to be adjusted, the first motor 6 starts to work, because the connecting screw rod 7 is installed at the output end of the first motor 6, at this time the connecting screw rod 7 starts to rotate, and the connecting screw rod 7 and the connecting sleeve 9 are in threaded connection, therefore, with the rotation of the connecting screw rod 7, the connecting sleeve 9 starts to move upwards, because the push plate 10 is installed at the upper end of the connecting sleeve 9, at this time the push plate 10 starts to move upwards under the action of the first guide rod 11, that is, with the movement of the push plate 10, the supporting plate 5 starts to be pushed, because the rotating plate 4 is installed on the supporting plate 5, at this time the rotating plate 4 starts to rotate around the fixed rotating shaft 3, that is, the supporting plate 5 starts to have a certain angle with the horizontal plane, at this time the sheet metal part can be placed on the supporting plate 5, at this time there is a certain angle between the two sheet metal parts to be welded, so as to realize the welding of sheet metal parts with different angle requirements.

[0031] The second motor 12 is fixedly arranged at the lower end of the rotating plate 4, the moving screw rod 14 is rotatably arranged on the rotating plate 4 and rotatably arranged on the supporting plate 5, the clamping sliding block 34 is arranged on the moving screw rod 14, the clamping plate 35 is fixedly arranged at the upper end of the clamping sliding block 34, the extension plate 18 is fixedly arranged on the side of the supporting plate 5, the supporting screw rod 17 is rotatably arranged on the extension plate 18, the pressing plate 19 is threadedly connected to the upper end of the supporting screw rod 17, the electric telescopic rod is fixedly arranged at the lower end of the pressing plate 19, the abutting plate 20 is fixedly arranged at the lower end of the electric telescopic rod, the left side horizontal gear 131 is fixedly arranged at the output end of the second motor 12, the left side vertical gear 132 is meshingly arranged at the right side of the left side horizontal gear 131, the left side horizontal gear 131 and the left side vertical gear 132 constitute the first gear set 13, the left side vertical gear 132 is fixedly arranged at the left side of the moving screw rod 14, the right side horizontal gear 151 is fixedly arranged at the right side of the moving screw rod 14, the right side vertical gear 152 is meshingly arranged at the right side of the right side horizontal gear 151, the right side horizontal gear 151 and the right side vertical gear 152 constitute the second gear set 15, the second belt pulley 16 is coaxially arranged at the lower end of the right side vertical gear 152 and fixedly arranged at the lower end of the supporting screw rod 17, the first bearing is arranged at the middle position of the extension plate 18, the supporting screw rod 17 is rotatably connected to the extension plate 18 through the first bearing arranged on the extension plate 18, the adsorbing magnet 36 is fixedly arranged at the left side of the clamping sliding block 34, the third sliding rod 40 is fixedly arranged at the side of the clamping sliding block 34 and slidably connected to the supporting plate 5, the square recess is arranged on the rotating plate 4, the push spring 37 is fixedly arranged in the recess of the rotating plate 4, the push guide plate 38 is fixedly arranged on the push spring 37, the positioning rod 39 is fixedly arranged on the push guide plate 38, and the cylindrical positioning recess is equally arranged on the fixed rotating shaft 3.

[0032] With the sheet metal parts placed on the support plate 5, the second motor 12 starts to work because the output end of the second motor 12 is connected with the left horizontal gear 131, at this time the left horizontal gear 131 starts to rotate, and because the left horizontal gear 131 is meshed with the left vertical gear 132, at this time the left vertical gear 132 starts to rotate, because the left vertical gear 132 is installed on the moving screw rod 14, at this time the moving screw rod 14 starts to rotate, because the moving screw rod 14 is threadedly connected with the clamping slider 34, at this time the clamping slider 34 starts to move, because the clamping slider 34 is installed with the clamping plate 35, at this time the clamping plate 35 starts to move, so as to push the placed sheet metal parts, until the two sheet metal parts are close to each other, facilitating subsequent welding of the sheet metal parts, with the movement of the clamping slider 34, the adsorbing magnet 36 installed on the clamping slider 34 also starts to move, at this time the adsorbing magnet 36 starts to move away from the pushing guide plate 38, that is, the adsorbing magnet 36 no longer adsorbs the pushing guide plate 38 (the pushing guide plate 38 is made of iron material which can be adsorbed, and the pushing spring 37 is made of stainless steel material), at this time, with the adsorbing magnet 36 recovering from deformation, the adsorbing magnet 36 starts to push the pushing guide plate 38 and the positioning rod 39 (when the clamping slider 34 and the clamping plate 35 move towards the pushing guide plate 38, the pushing guide plate 38 starts to be adsorbed and moved, that is, the pushing spring 37 starts to be compressed and deformed), until the positioning rod 39 is close to the positioning groove on the fixed rotating shaft 3, at this time the fixed rotating shaft 3 and the rotating plate 4 can be positioned and fixed, because the moving screw rod 14 is installed with the right horizontal gear 151, and because the right horizontal gear 151 is meshed with the right vertical gear 152, at this time the right vertical gear 152 starts to rotate, and because the right vertical gear 152 is coaxially connected with the second belt pulley 16, at this time the second belt pulley 16 starts to rotate, because the second belt pulley 16 is installed at the lower end of the supporting screw rod 17, at this time the supporting screw rod 17 starts to rotate, and because the supporting screw rod 17 is connected with the pressing plate 19, at this time the pressing plate 19 starts to move downwards, because the pressing plate 19 is installed with the close plate 20 at the lower end, at this time the close plate 20 starts to move downwards, until the close plate 20 is closely attached to the upper surface of the sheet metal part (the lower end of the pressing plate 19 is installed with the electric telescopic rod, and the lower end of the electric telescopic rod is installed with the close plate 20, when different batches of sheet metal parts need to be welded, the distance between the pressing plate 19 and the close plate 20 can be adjusted through the electric telescopic rod, so as to realize pressing and fixing of different batches of sheet metal parts), so as to effectively prevent the sheet metal part from moving and deviating during welding.

[0033] The first pulley 8 is fixedly installed with a push screw 21 at the upper end, the workbench 1 is installed with a second bearing at the rear side, the push screw 21 is rotatably connected with the workbench 1 through the second bearing installed on the workbench 1, the push screw 21 is threadedly connected with a bearing plate 22, the bearing plate 22 is symmetrically installed with second guide rods 23 at the left and right sides of the lower end, the workbench 1 is provided with a second sliding groove at the rear side, the second guide rods 23 are slidably connected with the workbench 1 through the second sliding groove provided on the workbench 1, the bearing plate 22 is symmetrically installed with supporting columns 24 at the left and right sides of the upper surface, the supporting columns 24 are fixedly installed with an additional plate 25 at the upper end, the additional plate 25 is fixedly installed with a moving motor 26 at the right side, the output end of the moving motor 26 is connected with a sliding block screw 27, the additional plate 25 is rotatably connected with the sliding block screw 27 through a supporting bearing installed on the additional plate 25, the additional plate 25 is slidably provided with a moving sliding block 28 at the upper end, the moving sliding block 28 is connected with the sliding block screw 27 through a threaded hole provided at the middle position, the moving sliding block 28 is fixedly installed with an adjusting motor 29 at the left upper end, the output end of the adjusting motor 29 is installed with a rotating gear 30, the rotating gear 30 is meshingly connected with an installed rack 31 at the side surface, the installed rack 31 is provided with a first groove 311 at the right side, the installed rack 31 is provided with a second groove 312 at the lower end, the moving sliding block 28 is fixedly installed with a second sliding rod 33 at the upper end, the second sliding rod 33 is slidably connected with the installed rack 31 through the second groove 312, the moving sliding block 28 is fixedly installed with a first sliding rod 32 at the right side of the upper end, the first sliding rod 32 is slidably connected with the installed rack 31 through the first groove 311, and the installed rack 31 is fixedly installed with a welding head 41 at the front side.

[0034] Because the connecting screw rod 7 lower end is fixedly installed with the first belt pulley 8, at this time the first belt pulley 8 starts to rotate, because the first belt pulley 8 is installed at the lower end of the push screw rod 21, at this time the push screw rod 21 starts to rotate, because the push screw rod 21 is in threaded connection with the bearing plate 22, at this time the bearing plate 22 starts to move downwards under the action of the second guide rod 23, because the bearing plate 22 upper end is installed with the support column 24, and the support column 24 is fixedly installed with the additional plate 25, at this time the additional plate 25 starts to move downwards, namely the welding head 41 starts to move downwards, thereby reducing the height of the welding head 41, facilitating subsequent welding processing, and then the moving motor 26 starts to work, because the output end of the moving motor 26 is connected with the sliding block screw rod 27, at this time with the rotation of the sliding block screw rod 27, the moving sliding block 28 starts to move, namely the welding head 41 can be driven to move, thereby making the welding head 41 move to the position where the two sheet metal pieces are attached, and then the welding head 41 starts to work, after that the adjusting motor 29 starts to work, because the output end of the adjusting motor 29 is installed with the rotating gear 30, at this time the rotating gear 30 starts to drive the installation rack 31 to move, under the cooperation of the first groove 311, the second groove 312, the first sliding rod 32 and the second sliding rod 33, the installation rack 31 can be stably moved, namely the welding head 41 can be driven to move, so as to realize welding processing on the position where the two sheet metal pieces are attached.

[0035] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A welding fixture for sheet metal processing, comprising a worktable (1), on which fixed plates (2) are symmetrically mounted on the upper surface, and a fixed rotating shaft (3) is fixedly mounted on the fixed plate (2), wherein a rotating plate (4) is rotatably provided outside the fixed rotating shaft (3), characterized in that, Also includes: A support plate (5) is fixedly installed on the rotating plate (4). A first motor (6) is fixedly installed at the middle position of the lower end of the workbench (1). A connecting screw (7) is fixedly installed at the output end of the first motor (6). A connecting sleeve (9) is threadedly connected to the upper end of the connecting screw (7). A first pulley (8) is fixedly installed at the lower end of the connecting screw (7). A push plate (10) is fixedly installed at the upper end of the connecting sleeve (9). The upper end of the push plate (10) is in contact with the support plate (5). A second motor (12) is fixedly installed at the lower end of the rotating plate (4). 4) A movable screw (14) is rotatably mounted on the upper part of the support plate (5), and the movable screw (14) is rotatably mounted on the support plate (5). A clamping slider (34) is provided on the movable screw (14), and a clamping plate (35) is fixedly mounted on the upper end of the clamping slider (34). An extension plate (18) is fixedly mounted on the side of the support plate (5), and a support screw (17) is rotatably mounted on the extension plate (18). A pressing plate (19) is threadedly connected to the upper end of the support screw (17). An electric telescopic rod is fixedly mounted on the lower end of the pressing plate (19), and a bonding plate (20) is fixedly mounted on the lower end of the electric telescopic rod. A push screw (21) is fixedly installed on the upper end of the first pulley (8). A second bearing is installed on the rear side of the worktable (1). The push screw (21) is rotatably connected to the worktable (1) through the second bearing installed on the worktable (1). A receiving plate (22) is threadedly connected to the push screw (21). A second guide rod (23) is symmetrically installed on the left and right sides of the lower end of the receiving plate (22). A second sliding groove is opened on the rear side of the worktable (1). The second guide rod (23) is slidably connected to the worktable (1) through the second sliding groove opened on the worktable (1). A magnetic magnet (36) is fixedly installed on the left side of the clamping slider (34), and a third slide rod (40) is fixedly installed on the side of the clamping slider (34). The third slide rod (40) and the support plate (5) are connected in a sliding manner. A square groove is provided on the rotating plate (4), and a push spring (37) is fixedly installed in the groove on the rotating plate (4). A push guide plate (38) is fixedly installed on the push spring (37), and a positioning rod (39) is fixedly installed on the push guide plate (38). A cylindrical positioning groove is provided at equal angles on the fixed rotating shaft (3).

2. The welding fixture for sheet metal processing according to claim 1, characterized in that: The workbench (1) has a first sliding groove in the middle. The push plate (10) has two first guide rods (11) symmetrically arranged on the left and right sides of its lower surface. The first guide rods (11) are slidably connected to the workbench (1) through the first sliding groove on the workbench (1).

3. The welding fixture for sheet metal processing according to claim 1, characterized in that: The output end of the second motor (12) is fixedly equipped with a left horizontal gear (131), and a left vertical gear (132) is meshed on the right side of the left horizontal gear (131). The left horizontal gear (131) and the left vertical gear (132) form a first gear set (13). The left vertical gear (132) is fixedly installed on the left side of the moving screw (14). The right horizontal gear (151) is fixedly installed on the right side of the moving screw (14), and a right vertical gear (152) is meshed on the right side of the right horizontal gear (151). The right horizontal gear (151) and the right vertical gear (152) form a second gear set (15).

4. A welding fixture for sheet metal processing according to claim 3, characterized in that: The lower end of the right vertical gear (152) is coaxially mounted with a second pulley (16), and the second pulley (16) is fixedly mounted at the lower end of the support screw (17). The middle position of the extension plate (18) is equipped with a first bearing, and the support screw (17) is rotatably connected to the extension plate (18) through the first bearing mounted on the extension plate (18).

5. A welding fixture for sheet metal processing according to claim 1, characterized in that: Support columns (24) are symmetrically installed on the left and right sides of the upper surface of the receiving plate (22), and an mounting plate (25) is fixedly installed on the upper end of the support column (24). A moving motor (26) is fixedly installed on the right side of the mounting plate (25), and the output end of the moving motor (26) is connected to the slider screw (27). A support bearing is installed on the upper end of the mounting plate (25), and the slider screw (27) is rotatably connected to the mounting plate (25) through the support bearing installed on the mounting plate (25).

6. A welding fixture for sheet metal processing according to claim 5, characterized in that: The upper end of the mounting plate (25) is slidably provided with a movable slider (28), and a threaded hole is provided in the middle of the movable slider (28). The movable slider (28) is connected to the slider screw (27) through the threaded hole. An adjustment motor (29) is fixedly installed on the upper left end of the movable slider (28).

7. A welding fixture for sheet metal processing according to claim 6, characterized in that: The output end of the regulating motor (29) is equipped with a rotating gear (30), and the rotating gear (30) is meshed with a mounting rack (31) on its side. The mounting rack (31) has a first groove (311) on its right side and a second groove (312) at its lower end. The upper middle position of the movable slider (28) is fixedly equipped with a second slide rod (33), and the second slide rod (33) is slidably connected to the mounting rack (31) through the second groove (312). The upper right side of the movable slider (28) is fixedly equipped with a first slide rod (32), and the first slide rod (32) is slidably connected to the mounting rack (31) through the first groove (311). The front position of the mounting rack (31) is fixedly equipped with a welding head (41).

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