Square tube and iron plate welding mechanism

Abstract

The utility model discloses a square tube and iron plate welding mechanism which comprises a bottom plate, a U-shaped mounting frame is fixedly mounted on the top side of the bottom plate, two L-shaped fixing clamping plates are fixedly mounted on the top side of the mounting frame, two round holes are formed in the bottom plate, and a motor and a driving belt wheel are arranged, so that the square tube and the iron plate can be welded through the motor and the driving belt wheel. When a square pipe body needs to be clamped and fixed, a motor operates to drive a rotating rod to rotate anticlockwise, two driven belt wheels synchronously drive two threaded rods to rotate anticlockwise under the transmission effect of a belt, and then two movable clamping plates move downwards; the square tube body can be clamped and fixed by matching with the two fixed clamping plates in the downward moving process, and the distance between the two movable clamping plates and the two fixed clamping plates is adjusted through forward rotation and reverse rotation of the motor, so that the square tube bodies of different sizes can be clamped, and the practicability is better; and the situation that the clamp needs to be frequently replaced when the square tube bodies with different sizes are clamped is avoided.

Description

Technical Field

[0001] This utility model relates to the field of spot welding technology, and in particular to a welding mechanism for square tubes and iron plates. Background Technology

[0002] Square and rectangular tubes are a type of steel pipe with square and rectangular sides, that is, steel pipes with equal or unequal side lengths. They are made from strip steel through a process of rolling. Generally, the strip steel is unpacked, flattened, rolled, and welded to form a round tube, which is then rolled into a square tube and cut into the required length.

[0003] Currently, the resistance spot welding between the steel plate and the square tube of the seat back panel is completed by adding an intermediate transition piece. However, when welding the square tube, it is necessary to fix it first. Most of the existing square tube fixing devices cannot be adjusted according to the size of the square tube and can only fix square tubes of the same size, which is inconvenient to use. Therefore, a welding mechanism for square tube and iron plate is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a welding mechanism for square tubes and iron plates, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding mechanism for square tubes and iron plates includes a base plate. A mounting frame, U-shaped, is fixedly mounted on the top side of the base plate. Two fixed clamping plates, L-shaped, are fixedly mounted on the top side of the mounting frame. The base plate has two circular holes, each containing a threaded rod. The other ends of the threaded rods pass through the mounting frame and the two fixed clamping plates. Movable clamping plates, L-shaped and symmetrically arranged with the two fixed clamping plates, are slidably mounted on the outer sides of the threaded rods. Protective pads are provided on the sides of the movable and fixed clamping plates that are close to each other. A square tube body is positioned between the movable and fixed clamping plates. A guide assembly is provided on one side of each movable clamping plate. A linkage assembly is located below the base plate, and a welding assembly is located above the base plate.

[0007] Preferably, the guide assembly includes two rails fixedly installed on the top side of the mounting frame. Each of the two rails has a guide groove on the side that is close to each other. A guide block is slidably installed in each of the two guide grooves. The side of the two guide blocks that is close to each other is fixedly connected to the side of the two movable clamps that is far from each other.

[0008] Preferably, the linkage component includes a motor fixedly installed on the top side of the base plate, the output end of the motor rotating through the base plate and fixedly installed with a rotating rod, and the other end of the rotating rod being fixedly sleeved with a drive pulley.

[0009] Preferably, the bottom ends of the two threaded rods are fixedly fitted with driven pulleys, and the two driven pulleys and the two driving pulleys are connected by the same belt, with the size of the driving pulleys being larger than that of the driven pulleys.

[0010] Preferably, the welding assembly includes a fixing frame fixedly installed on the top side of the base plate. The fixing frame is U-shaped. Laser welding machines are provided on both the top inner wall and the bottom inner wall of the fixing frame. The upper laser welding machine has an upper electrode cap at its welding end, and the lower laser welding machine has a lower electrode cap at its welding end. The electrode surface of the upper electrode cap is spherical, and the electrode surface of the lower electrode cap is planar.

[0011] Preferably, a set of limiting rings is fixedly sleeved on the outer side of each of the two threaded rods, with two limiting rings in each set. The side of each set of limiting rings that is close to each other is respectively attached to the top and bottom sides of the base plate.

[0012] Preferably, the bottom side of the base plate is provided with support legs, and the number of support legs is four.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The welding mechanism for square tubes and iron plates, equipped with a motor and a drive pulley, allows the square tube body to be clamped and fixed when needed. The motor drives the rotating rod to rotate counterclockwise, and under the transmission of the belt, the two driven pulleys synchronously drive the two threaded rods to rotate counterclockwise, thereby causing the two movable clamping plates to move downward. During the downward movement, the two fixed clamping plates work together to clamp and fix the square tube body. Furthermore, since the distance between the two movable clamping plates and the two fixed clamping plates is adjusted by the forward and reverse rotation of the motor, it can clamp square tube bodies of different sizes, making it more practical and avoiding the need to frequently change clamps when clamping square tube bodies of different sizes. Attached Figure Description

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

[0015] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the active pulley part of the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing clamp part of the structure of this utility model.

[0018] In the diagram: 1. Base plate; 2. Support leg; 3. Fixing frame; 4. Laser welding machine; 5. Upper electrode cap; 6. Lower electrode cap; 7. Mounting frame; 8. Fixing clamp; 9. Motor; 10. Rotating rod; 11. Driving pulley; 12. Threaded rod; 13. Driven pulley; 14. Belt; 15. Movable clamp; 16. Guide block; 17. Track; 18. Limiting ring; 19. Protective pad; 20. Square tube body. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1-4A welding mechanism for square tubes and iron plates includes a base plate 1. A mounting bracket 7, U-shaped, is fixedly mounted on the top side of the base plate 1. Two fixed clamping plates 8, both L-shaped, are fixedly mounted on the top side of the mounting bracket 7. The base plate 1 has two circular holes, each containing a threaded rod 12. The other ends of the threaded rods 12 pass through the mounting bracket 7 and the two fixed clamping plates 8. Movable clamping plates 15, L-shaped and symmetrically arranged with the two fixed clamping plates 8, are slidably mounted on the outer sides of the two threaded rods 12. The two movable clamping plates 15 and the two fixed clamping plates 8 are close to each other. A protective pad 19 is provided on one side. A square tube body 20 is provided between the two movable clamping plates 15 and the two fixed clamping plates 8. A guide component is provided on one side of each of the two movable clamping plates 15. A linkage component is provided below the base plate 1. A welding component is provided above the base plate 1. The linkage component includes a motor 9 fixedly installed on the top side of the base plate 1. The output end of the motor 9 rotates through the base plate 1 and is fixedly installed with a rotating rod 10. The other end of the rotating rod 10 is fixedly sleeved with a driving pulley 11. The bottom ends of the two threaded rods 12 are fixedly sleeved with driven pulleys 13. A common guide is provided between the two driven pulleys 13 and the two driving pulleys 11. A belt 14 is used, with the driving pulley 11 being larger than the driven pulley 13. A motor 9 and the driving pulley 11 are installed. When clamping the tube body 20 is required, the motor 9 drives the rotating rod 10 to rotate counterclockwise. Because the driving pulley 11 is fixedly sleeved on the bottom end of the rotating rod 10, and the driving pulley 11 and the two driven pulleys 13 share the same belt 14, the two driven pulleys 13 synchronously drive the two threaded rods 12 to rotate counterclockwise under the transmission action of the belt 14. This causes the two movable clamping plates 15 to move downwards. During this downward movement, in conjunction with the two fixed clamping plates 8, the tube body 20 can be clamped. The tube body 20 is clamped and fixed. Because protective pads 19 are provided on one side of both fixed clamping plates 8 and two movable clamping plates 15, multiple protective pads 19 can play a role in preventing slippage. Since the distance between the two movable clamping plates 15 and the two fixed clamping plates 8 is adjusted by the forward and reverse rotation of the motor 9, it can clamp square tube bodies 20 of different sizes, making it more practical and eliminating the need for frequent clamp replacement. Furthermore, the L-shaped fixed clamping plates 8 and movable clamping plates 15 can better wrap around the square tube body 20, thereby better preventing displacement of the square tube body 20 during welding.

[0021] Specifically, the guide assembly includes two rails 17 fixedly installed on the top side of the mounting frame 7. Each of the two rails 17 has a guide groove on the side that is close to each other. A guide block 16 is slidably installed in each of the two guide grooves. The side of the two guide blocks 16 that is close to each other is fixedly connected to the side that is far from each other of the two movable clamping plates 15. Through the two guide blocks 16, the two guide blocks 16 can play a guiding and limiting role when the two movable clamping plates 15 move up or down, so as to prevent the movable clamping plates 15 from rotating.

[0022] Specifically, the welding assembly includes a U-shaped mounting bracket 3 fixedly installed on the top side of the base plate 1. Both the top and bottom inner walls of the mounting bracket 3 are equipped with laser welding machines 4. The upper laser welding machine 4 has an upper electrode cap 5 at its welding end, and the lower laser welding machine 4 has a lower electrode cap 6 at its welding end. The electrode surface of the upper electrode cap 5 is spherical, and the electrode surface of the lower electrode cap 6 is flat. The square tube body 20 can be welded by the two laser welding machines 4 installed in the mounting bracket 3. The upper electrode cap 5 and the lower electrode cap 6 are respectively provided at their welding ends. The upper electrode cap 5 and the lower electrode cap 6 do not need to be maintained or replaced during welding, which can effectively reduce labor and material input.

[0023] Specifically, a set of limiting rings 18 are fixedly sleeved on the outer side of each of the two threaded rods 12. There are two limiting rings 18 in each set. The side of each limiting ring 18 that is close to each other is respectively attached to the top and bottom sides of the base plate 1. The bottom side of the base plate 1 is provided with support legs 2. There are four support legs 2. By setting the two sets of limiting rings 18, the two threaded rods 12 can be limited, so that they can only rotate and will not move up and down.

[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.

[0025] In use: When it is necessary to clamp the square tube body 20, the square tube body 20 is passed between the two fixed clamping plates 8 and the two movable clamping plates 15. Then, the motor 9 drives the rotating rod 10 to rotate counterclockwise. Because the driving pulley 11 is fixedly sleeved on the bottom end of the rotating rod 10, and the driving pulley 11 and the two driven pulleys 13 share the same belt 14, under the transmission action of the belt 14, the two driven pulleys 13 synchronously drive the two threaded rods 12 to rotate counterclockwise, thereby causing the two movable clamping plates 15 to move downward. During the downward movement, in conjunction with the two fixed clamping plates 8, the square tube body 20 can be clamped and fixed. Each of the two movable clamping plates 15 is provided with a protective pad 19 on one side. Multiple protective pads 19 can play a role in preventing slippage. Since the distance between the two movable clamping plates 15 and the two fixed clamping plates 8 is adjusted by the forward and reverse rotation of the motor 9, it can clamp square tube bodies 20 of different sizes, making it more practical and eliminating the need for frequent clamp replacement. After clamping, the square tube body 20 can be welded by the two laser welding machines 4 set in the fixed frame 3. The welding ends of the two laser welding machines 4 are respectively provided with upper electrode caps 5 and lower electrode caps 6. The upper electrode caps 5 and lower electrode caps 6 do not need to be maintained or replaced during welding, which can effectively reduce labor and material input.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] 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 welding mechanism for square tube and iron plate, comprising a base plate (1), characterized in that, The top side of the bottom plate (1) is fixedly provided with a mounting rack (7), the mounting rack (7) is in a U shape, two fixed clamping plates (8) are fixedly arranged on the top side of the mounting rack (7), the two fixed clamping plates (8) are both in an L shape, two round holes are formed in the bottom plate (1), two threaded rods (12) are arranged in the two round holes, the other ends of the two threaded rods (12) penetrate through the mounting rack (7) and the two fixed clamping plates (8), two movable clamping plates (15) are slidably arranged on the outer sides of the two threaded rods (12), the two movable clamping plates (15) are both arranged in an L shape and are symmetrically arranged with the two fixed clamping plates (8), the sides, which are close to each other, of the two movable clamping plates (15) and the two fixed clamping plates (8) are both provided with protective pads (19), a square tube body (20) is arranged between the two movable clamping plates (15) and the two fixed clamping plates (8), the sides of the two movable clamping plates (15) are both provided with guide assemblies, a linkage assembly is arranged below the bottom plate (1), and a welding assembly is arranged above the bottom plate (1).

2. The apparatus according to claim 1, wherein The guide assembly comprises two rails (17) fixedly arranged on the top side of the mounting rack (7), the sides, which are close to each other, of the two rails (17) are both provided with guide grooves, and two guide blocks (16) are slidably arranged in the two guide grooves, and the sides, which are close to each other, of the two guide blocks (16) are fixedly connected with the sides, which are far away from each other, of the two movable clamping plates (15).

3. The apparatus according to claim 1, wherein The linkage assembly comprises a motor (9) fixedly arranged on the top side of the bottom plate (1), a rotating rod (10) rotatably penetrating through the bottom plate (1) and fixedly arranged at the output end of the motor (9), and a driving pulley (11) fixedly sleeved at the other end of the rotating rod (10).

4. The apparatus according to claim 2, wherein The bottom ends of the two threaded rods (12) are both fixedly sleeved with driven pulleys (13), the same belt (14) is arranged between the two driven pulleys (13) and the two driving pulleys (11), and the size of the driving pulley (11) is greater than that of the driven pulley (13).

5. The apparatus according to claim 1, wherein The welding assembly comprises a fixing frame (3) fixedly arranged on the top side of the bottom plate (1), the fixing frame (3) is in a U shape, the top side inner wall and the bottom side inner wall of the fixing frame (3) are both provided with laser welding machines (4), the welding end of the upper laser welding machine (4) is provided with an upper electrode cap (5), the welding end of the lower laser welding machine (4) is provided with a lower electrode cap (6), the electrode surface of the upper electrode cap (5) is a spherical surface, and the electrode surface of the lower electrode cap (6) is a plane.

6. The apparatus according to claim 1, wherein The outer sides of the two threaded rods (12) are both fixedly sleeved with a group of limiting rings (18), the number of each group of limiting rings (18) is two, and the sides, which are close to each other, of each group of limiting rings (18) are respectively attached to the top side and the bottom side of the bottom plate (1).

7. The apparatus according to claim 1, wherein The bottom side of the bottom plate (1) is provided with support legs (2), and the number of the support legs (2) is four.

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