Resistance welding transformer for welding aluminum plate

Abstract

The utility model relates to the technical field of resistance welding, and discloses a resistance welding transformer for welding aluminum plates, which comprises a welding head, a mounting shell is fixedly mounted at the top of the welding head, a sealing plate is arranged on the outer wall of the mounting shell, the inner wall of the sealing plate is in threaded connection with a fixing bolt, the inner wall of the welding head is in sliding connection with a sliding plate, and the sliding plate is in threaded connection with the sealing plate. The outer wall of the sliding plate is slidably connected with a lifting L-shaped plate, and the top of the lifting L-shaped plate is provided with a transformer body. By rotating a rotating rod, the rotating rod drives bevel gears to rotate, the two bevel gears rotate at the same time through meshing, then a threaded column rotates, the threaded column drives a lifting block to move upwards, a lifting L-shaped plate drives a transformer body to move upwards, at the moment, a pull rod is pulled, and then the pull rod drives a locking plate to move; and at the moment, a sliding plate is pulled, so that the sliding plate drives the lifting L-shaped plate and the transformer main body to move out of the inner wall of the welding head, and the welding head can be observed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of resistance welding technology, specifically to a resistance welding transformer for welding aluminum plates. Background Technology

[0002] Resistance welding is a method that uses the resistance heat generated by the current passing through the workpiece and the contact area as a heat source to locally heat the workpiece while applying pressure to perform welding.

[0003] Currently, resistance welding is mostly used for welding aluminum plates. However, resistance welding torches are usually equipped with resistance welding transformers. During routine maintenance, it is necessary to observe the surface of the resistance welding transformer. However, it is located inside the welding torch, which makes observation inconvenient. At the same time, disassembly is extremely difficult when repairing it. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a resistance welding transformer for welding aluminum plates, which has the advantages of easy observation and convenient disassembly during maintenance, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a resistance welding transformer for welding aluminum plates, including a welding head, a mounting shell fixedly installed on the top of the welding head, a sealing plate provided on the outer wall of the mounting shell, a fixing bolt threadedly connected to the inner wall of the sealing plate, a sliding plate slidably connected to the inner wall of the welding head, a lifting L-plate slidably connected to the outer wall of the sliding plate, a transformer body provided on the top of the lifting L-plate, a connecting terminal fixedly installed on the bottom of the transformer body, an extension shell fixedly installed on the outer wall of the welding head, a locking plate slidably connected to the inner wall of the extension shell, and a locking plate... A pull rod is fixedly installed on the outer wall of the plate. A spring is provided on the inner wall of the extension shell. A limit post is fixedly installed on the inner wall of the extension shell. A locking groove is opened on the outer wall of the sliding plate. A lifting block is fixedly installed on the outer wall of the lifting L-plate. A rotating rod and a threaded post are rotatably connected to the inner wall of the sliding plate. A bevel gear is fixedly installed at the end of the rotating rod near the threaded post. A plug is slidably connected to the inner wall of the lifting L-plate. A limit rod is fixedly installed on the inner wall of the lifting L-plate. A spring is provided on the inner wall of the lifting L-plate. A limit block is fixedly installed on the outer wall of the transformer body.

[0006] As a preferred technical solution of this utility model: the lifting block is located on the inner wall of the sliding plate, and the lifting block is penetrated by a threaded column, and the threaded column and the lifting block are threadedly connected.

[0007] As a preferred technical solution of this utility model: the number of bevel gears is two, and the two bevel gears are respectively located at one end of the rotating rod near the threaded column and the top of the threaded column. The two threaded columns are arranged at right angles and mesh with each other.

[0008] As a preferred technical solution of this utility model: the number of the locking grooves is two, and the two locking grooves are symmetrically arranged on both sides of the sliding plate, and the shape of the two locking grooves is adapted to the locking plate.

[0009] As a preferred technical solution of this utility model: the number of the limiting posts is two, and the two limiting posts are symmetrically arranged on the inner wall of the extension shell, and the two limiting posts penetrate through both sides of the locking plate.

[0010] As a preferred technical solution of this utility model: the limiting block is located on the inner wall of the lifting L plate, and the insert penetrates the inner wall of the lifting L plate, and the diameter of the insert is adapted to the inner wall diameter of the limiting block.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This resistance welding transformer for welding aluminum plates rotates by rotating a rotating rod, which in turn drives a bevel gear to rotate. The two bevel gears rotate simultaneously through meshing, causing a threaded column to rotate. This threaded column then moves a lifting block upward, which in turn moves a lifting L-plate upward, causing the transformer body to move upward. At this point, pulling a pull rod moves a locking plate, disengaging the locking plate from the locking groove. Pulling a sliding plate then moves the lifting L-plate and the transformer body out of the inner wall of the welding head for observation.

[0013] 2. The resistance welding transformer used for welding aluminum plates, by pulling the plug, causes the plug to move downward on the outer wall of the limit rod. When the plug is fully inserted into the inner wall of the lifting L plate, the plug disengages from the limit block. At this time, the fixing relationship of the limit block disappears. Then, the transformer body is pulled outward, causing the transformer body to drive the connecting terminal to be removed from the top of the lifting L plate, so that the transformer body is removed. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the extended shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the sliding plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the lifting L-plate of this utility model.

[0019] In the diagram: 1. Welding head; 2. Mounting shell; 3. Sealing plate; 4. Fixing bolt; 5. Sliding plate; 6. Lifting L-plate; 7. Transformer body; 8. Connecting terminal; 9. Extension shell; 10. Pull rod; 11. Locking plate; 12. Spring 1; 13. Limiting post; 14. Locking groove; 15. Lifting block; 16. Rotating rod; 17. Bevel gear; 18. Threaded post; 19. Spring 2; 20. Limiting block; 21. Insert post; 22. Limiting rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 - Figure 5 A resistance welding transformer for welding aluminum plates includes a welding head 1, a mounting shell 2 fixedly mounted on the top of the welding head 1, a sealing plate 3 on the outer wall of the mounting shell 2, a fixing bolt 4 threadedly connected to the inner wall of the sealing plate 3, a sliding plate 5 slidably connected to the inner wall of the welding head 1, a lifting L-plate 6 slidably connected to the outer wall of the sliding plate 5, a transformer body 7 on the top of the lifting L-plate 6, a connecting terminal 8 fixedly mounted on the bottom of the transformer body 7, an extension shell 9 fixedly mounted on the outer wall of the welding head 1, a locking plate 11 slidably connected to the inner wall of the extension shell 9, and a pull rod 10 fixedly mounted on the outer wall of the locking plate 11. The inner wall of the extension shell 9 is provided with a spring 12, and a limit post 13 is fixedly installed on the inner wall of the extension shell 9. The outer wall of the sliding plate 5 is provided with a locking groove 14. The outer wall of the lifting L plate 6 is fixedly installed with a lifting block 15. The inner wall of the sliding plate 5 is rotatably connected with a rotating rod 16 and a threaded post 18. A bevel gear 17 is fixedly installed at one end of the rotating rod 16 near the threaded post 18. The inner wall of the lifting L plate 6 is slidably connected with an insert post 21. The inner wall of the lifting L plate 6 is fixedly installed with a limit rod 22. The inner wall of the lifting L plate 6 is provided with a spring 19. The outer wall of the transformer body 7 is fixedly installed with a limit block 20.

[0022] In the above structure, the lifting L plate 6 and the mounting shell 2 are connected through the connecting terminal 8, so that the connecting terminal 8 is connected to the top of the welding head 1, and the transformer body 7 inputs power into the interior of the welding head 1 through the connecting terminal 8, thereby enabling the welding head 1 to weld the aluminum plate.

[0023] In a preferred embodiment: the lifting block 15 is located on the inner wall of the sliding plate 5, and the lifting block 15 is penetrated by the threaded post 18, and the threaded post 18 and the lifting block 15 are threadedly connected.

[0024] In the above structure, the rotation of the threaded column 18 causes the threaded column 18 to slide on the inner wall of the sliding plate 5 through the threaded connection with the lifting block 15, which in turn causes the lifting block 15 to slide the lifting L plate 6, which in turn causes the lifting L plate 6 to move the transformer body 7.

[0025] In a preferred embodiment, there are two bevel gears 17, and the two bevel gears 17 are located at one end of the rotating rod 16 near the threaded post 18 and the top of the threaded post 18, respectively. The two threaded posts 18 are arranged at right angles and mesh with each other.

[0026] In the above structure, by rotating the rotating rod 16, the rotating rod 16 drives the bevel gear 17 outside it to rotate, so that the bevel gear 17 outside the rotating rod 16 meshes with the rotating rod 16 at the top of the threaded column 18, thereby driving the bevel gear 17 at the top of the threaded column 18 to rotate, and thus the bevel gear 17 at the top of the threaded column 18 drives the threaded column 18 to rotate.

[0027] In a preferred embodiment, there are two locking slots 14, and the two locking slots 14 are symmetrically arranged on both sides of the sliding plate 5, and the two locking slots 14 are adapted to the shape of the locking plate 11.

[0028] In the above structure, the spring 12 pushes the locking plate 11 into the lock groove 14, thereby fixing the position of the lock groove 14 and fixing the position of the sliding plate 5. By connecting the locking plate 11 with two different lock grooves 14, the fixed position of the sliding plate 5 can be changed.

[0029] In a preferred embodiment, there are two limiting posts 13, and the two limiting posts 13 are symmetrically arranged on the inner wall of the extension shell 9, and the two limiting posts 13 penetrate through both sides of the locking plate 11.

[0030] In the above structure, the locking plate 11 is penetrated by two limiting posts 13, so that the locking plate 11 can only slide on the outer wall of the two limiting posts 13 when it moves, so that the locking plate 11 is limited by the two limiting posts 13, and thus the locking plate 11 will not tilt when it moves.

[0031] In a preferred embodiment: the limiting block 20 is located on the inner wall of the lifting L plate 6, and the insert 21 penetrates the inner wall of the lifting L plate 6, the diameter of the insert 21 being adapted to the inner wall diameter of the limiting block 20.

[0032] In the above structure, the spring 21 pushes the insert 21 outward toward the inner wall of the lifting L plate 6 by the rebound of the spring 29, so that the insert 21 penetrates the inner wall of the lifting L plate 6 and reaches the inner wall of the limiting block 20, so that the inner wall of the limiting block 20 is fixed by the insert 21, thereby preventing the limiting block 20 from moving and fixing the position of the transformer body 7.

[0033] Working Principle: When using this equipment, the transformer body 7 inputs power to the welding head 1 through the connecting terminal 8, enabling the welding head 1 to weld aluminum plates. During routine maintenance, when it is necessary to inspect the transformer body 7, the sealing plate 3 and fixing bolts 4 are removed. At this time, rotating the rotating rod 16 causes the external bevel gear 17 to rotate, which in turn causes the bevel gear 17 at the top of the threaded column 18 to rotate, causing the threaded column 18 to rotate. This causes the threaded column 18 to move upward through its threaded connection with the lifting block 15, which in turn causes the lifting block 15 to move upward, which in turn causes the lifting L-plate 6 to move upward, which in turn causes the transformer body 7 to move upward, which in turn causes the connecting terminal 8 to move upward. At this time, the connecting terminal 8 disengages from the welding head 1. Then, pulling the pull rod 10 outward causes the pull rod to move upward. Pull rod 10 pulls the locking plate 11 away from the inner wall of the locking groove 14. At this time, pull the sliding plate 5 to move it out from the inner wall of the welding head 1. Then, the sliding plate 5 moves the lifting L plate 6 and the transformer body 7 out from the inner wall of the welding head 1. When the locking plate 11 overlaps with the locking groove 14 on the other side, release the pull rod 10 so that the locking plate 11 enters the interior of the locking groove 14 on the other side. Then, the position of the lifting L plate 6 is fixed. At this time, the transformer body 7 is located outside the equipment, which is convenient for observation. When it is necessary to disassemble the transformer body 7, pull the plug 21 to move the plug 21 downward on the outer wall of the limit rod 22. When the plug 21 is fully inserted into the inner wall of the lifting L plate 6, the plug 21 is disengaged from the limit block 20. At this time, the fixing relationship of the limit block 20 is lost. Then, pull the transformer body 7 outward so that the transformer body 7 moves the connecting terminal 8 from the top of the lifting L plate 6 and the transformer body 7 is removed.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A resistance welding transformer for welding aluminium sheets, comprising a welding head (1), characterised in that: A mounting shell (2) is fixedly installed on the top of the welding head (1). A sealing plate (3) is provided on the outer wall of the mounting shell (2). A fixing bolt (4) is threadedly connected to the inner wall of the sealing plate (3). A sliding plate (5) is slidably connected to the inner wall of the welding head (1). A lifting L-plate (6) is slidably connected to the outer wall of the sliding plate (5). A transformer body (7) is provided on the top of the lifting L-plate (6). A connecting terminal (8) is fixedly installed on the bottom of the transformer body (7). An extension shell (9) is fixedly installed on the outer wall of the welding head (1). A locking plate (11) is slidably connected to the inner wall of the extension shell (9). A pull rod (10) is fixedly installed on the outer wall of the locking plate (11). A spring is provided on the inner wall of the extension shell (9). Spring 1 (12), the inner wall of the extension shell (9) is fixedly installed with a limit post (13), the outer wall of the sliding plate (5) is provided with a locking groove (14), the outer wall of the lifting L plate (6) is fixedly installed with a lifting block (15), the inner wall of the sliding plate (5) is rotatably connected with a rotating rod (16) and a threaded column (18), the end of the rotating rod (16) near the threaded column (18) is fixedly installed with a bevel gear (17), the inner wall of the lifting L plate (6) is slidably connected with a plug (21), the inner wall of the lifting L plate (6) is fixedly installed with a limit rod (22), the inner wall of the lifting L plate (6) is provided with a spring 2 (19), and the outer wall of the transformer body (7) is fixedly installed with a limit block (20).

2. A resistance welding transformer for welding aluminum sheets as defined in claim 1, characterized in that: The lifting block (15) is located on the inner wall of the sliding plate (5), and the lifting block (15) is penetrated by the threaded column (18), and the threaded column (18) and the lifting block (15) are threadedly connected.

3. A resistance welding transformer for welding aluminum plates according to claim 1, characterized in that: The number of the bevel gears (17) is two, and the two bevel gears (17) are located at one end of the rotating rod (16) near the threaded column (18) and the top of the threaded column (18), respectively. The two threaded columns (18) are arranged at right angles and mesh with each other.

4. A resistance welding transformer for welding aluminum sheets as defined in claim 1, characterized in that: The number of the locking grooves (14) is two, and the two locking grooves (14) are symmetrically arranged on both sides of the sliding plate (5). The two locking grooves (14) are adapted to the shape of the locking plate (11).

5. A resistance welding transformer for welding aluminum plates according to claim 1, characterized in that: The number of the limiting posts (13) is two, and the two limiting posts (13) are symmetrically arranged on the inner wall of the extension shell (9). The two limiting posts (13) penetrate both sides of the locking plate (11).

6. A resistance welding transformer for welding aluminum plates according to claim 1, characterized in that: The limiting block (20) is located on the inner wall of the lifting L plate (6), and the insert (21) penetrates the inner wall of the lifting L plate (6). The diameter of the insert (21) is adapted to the inner wall diameter of the limiting block (20).

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