Multifunctional clamp for edge welding of sheet metal

Abstract

The utility model belongs to the field of metal sheet welding relates to a metal sheet hemming welding multifunctional clamp, including clamp base, the upper surface of clamp base is slidably installed with sliding beam, the end of clamp base upper surface is welded with fixed beam and installed, the upper surface of sliding beam and fixed beam all is welded with loading platform and installed, the side surface of two loading platforms all is provided with protection unit, the outside surface of clamp base is provided with purification unit. Through the pressure sensor in the protection unit lower clamping plate inside can preliminary detection metal sheet's pressure, when the upper rubber pressure metal sheet's upper surface, pressure sensor will detect the pressure of metal sheet to the upper rubber, make the even stress when clamping, through the trapezoidal setting of lower rubber and upper rubber, reduce the oppression to metal sheet, reach the effect that increase the success rate and the qualified rate when welding.

Description

Technical Field

[0001] This utility model belongs to the field of metal sheet welding and relates to a multi-functional fixture for welding the edge of metal sheets. Background Technology

[0002] Metal sheet welding refers to the process of joining thin metal sheets into one piece using welding methods such as argon arc welding, laser welding, and resistance welding. During welding, multi-functional fixtures can stably hold the thin sheets to be welded and ensure precise alignment of the weld joints.

[0003] When using multi-functional clamps to hold and weld thin metal sheets, excessive clamping force can cause plastic deformation of the sheet, resulting in dents, warping, and other shape changes. This can damage the original dimensional accuracy of the sheet and create residual stress inside the sheet, leading to cracks after welding or during use. It can even affect the bonding strength of the welded joint, reducing the overall performance and service life of the welded component.

[0004] To address these issues, we propose a multi-functional fixture for edge welding of thin metal sheets. Utility Model Content

[0005] The technical problem this utility model aims to solve is that when a multi-functional clamp is used to clamp and weld thin metal plates, excessive clamping force can cause plastic deformation of the plate, resulting in dents, warping, and other shape changes, damaging the original dimensional accuracy of the plate, and also causing residual stress inside the plate, leading to cracks after welding or during use, and even affecting the bonding strength of the welded joint, reducing the overall performance and service life of the welded part. One type of multi-functional clamp for welding rolled edges of thin metal plates includes a clamp base, a sliding beam slidably mounted on the upper surface of the clamp base, a fixed beam welded to the end of the upper surface of the clamp base, and loading platforms welded to the upper surfaces of both the sliding beam and the fixed beam. One side surface of each of the two loading platforms is provided with a protective unit for providing uniform force clamping, and the outer surface of the clamp base is provided with a purification unit for absorbing welding fumes during welding. The protection unit includes an upper clamping plate and a lower clamping plate. Pressure sensors for detecting pressure are provided on one side surface of both the upper and lower clamping plates. An upper rubber is glued to the lower surface of the upper clamping plate, and a lower rubber is glued to the upper surface of the lower clamping plate. The detection ends of the two pressure sensors are in contact with one side surface of the lower and upper rubbers, respectively.

[0006] The present invention has a loading shell fixedly installed on one side surface of each of the two loading platforms, and an electric threaded rod installed on the upper surface of the loading shell, wherein the working end of the electric threaded rod is located inside the loading shell and is threadedly connected to the upper clamping plate and the lower clamping plate.

[0007] Both the lower and upper rubbers of this invention are trapezoidal in shape to increase the stress-bearing area.

[0008] In this invention, the upper clamping plate is connected to the working end of the electric threaded rod in a forward threaded manner, and the lower clamping plate is connected to the working end of the electric threaded rod in a reverse threaded manner.

[0009] The purification unit of this utility model includes four electric push rods, which are respectively installed in four slots on the outer surface of the fixture base. Each of the four electric push rods has a push block installed at its working end.

[0010] The fixture of this invention has two grooves on the upper surface of the fixture base in which a protective plate is slidably installed, and one side surface of the protective plate is fixedly connected to the push block.

[0011] In this invention, a duct device is installed in a groove on the other surface of each of the two protective plates. A pipe is installed at the inlet end of the duct device, and the pipe passes through the protective plate and is located on the outside.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The pressure sensor inside the lower clamping plate of the protection unit can initially detect the pressure of the metal sheet. When the upper rubber presses against the upper surface of the metal sheet, the pressure sensor will detect the pressure of the upper rubber on the metal sheet. When it is the same as the pressure detected above, the two electric threaded rods stop working, so that the force is evenly distributed during clamping. In addition, through the trapezoidal arrangement of the lower and upper rubbers, the lower and upper rubbers have a large contact area with the metal sheet, thereby reducing the pressure on the metal sheet and increasing the success rate and pass rate of welding. The purification unit is connected to an external industrial purifier via pipes, allowing the welding fumes to be absorbed and purified through the air duct, thereby preventing harm to people and pollution to the environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the surface structure of the loading platform according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the lower rubber and upper rubber according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the pressure sensor structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the air duct device according to an embodiment of the present invention.

[0014] In the diagram: 1. Fixture base; 2. Sliding beam; 3. Fixed beam; 4. Loading platform; 5. Protection unit; 501. Loading shell; 502. Electric threaded rod; 503. Upper clamping plate; 504. Lower clamping plate; 505. Lower rubber; 506. Upper rubber; 507. Pressure sensor; 6. Purification unit; 601. Electric push rod; 602. Pushing block; 603. Protective plate; 604. Air duct; 605. Pipe. Detailed Implementation

[0015] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0016] like Figures 1 to 5 As shown, a multi-functional fixture for edge welding of thin metal sheets includes a fixture base 1, a sliding beam 2 slidably mounted on the upper surface of the fixture base 1, a fixed beam 3 welded to the end of the upper surface of the fixture base 1, a loading platform 4 welded to the upper surfaces of both the sliding beam 2 and the fixed beam 3, a protective unit 5 for providing uniform force clamping on one side surface of both loading platforms 4, and a purification unit 6 for absorbing welding fumes during welding on the outer surface of the fixture base 1. The protection unit 5 includes an upper clamping plate 503 and a lower clamping plate 504. Pressure sensors 507 for detecting pressure are provided on one side surface of both the upper clamping plate 503 and the lower clamping plate 504. An upper rubber 506 is glued to the lower surface of the upper clamping plate 503, and a lower rubber 505 is glued to the upper surface of the lower clamping plate 504. The detection ends of the two pressure sensors 507 are in contact with one side surface of the lower rubber 505 and the upper rubber 506, respectively.

[0017] Pressure sensors 507 are embedded on one side surface of the upper clamping plate 503 and the lower clamping plate 504. The pressure sensors 507 can detect the clamping force of the upper rubber 506 and the lower rubber 505 respectively, preventing excessive clamping and damage to the metal sheet.

[0018] like Figure 2 and Figure 3 As shown, a loading shell 501 is fixedly installed on one side surface of each of the two loading platforms 4. An electric threaded rod 502 is installed on the upper surface of the loading shell 501. The working end of the electric threaded rod 502 is located inside the loading shell 501 and is threadedly connected to the upper clamping plate 503 and the lower clamping plate 504.

[0019] like Figure 2 and Figure 3As shown, the upper clamping plate 503 is connected to the working end of the electric threaded rod 502 by a forward thread, and the lower clamping plate 504 is connected to the working end of the electric threaded rod 502 by a reverse thread.

[0020] When the electric threaded rod 502 is in operation, it causes the upper clamping plate 503 and the lower clamping plate 504 to move in opposite directions, thereby clamping the thin metal sheet.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, both the lower rubber 505 and the upper rubber 506 are trapezoidal in shape to increase the force-bearing area.

[0022] The lower rubber 505 and the upper rubber 506 are trapezoidal. The smaller planes are in contact with one side of the upper clamping plate 503 and the lower clamping plate 504, respectively, while the larger planes are in contact with the metal sheet, reducing the pressure on the metal sheet.

[0023] like Figure 1 and Figure 5 As shown, the purification unit 6 includes four electric push rods 601. The four electric push rods 601 are respectively installed in four slots opened on the outer surface of the fixture base 1. Each of the four electric push rods 601 has a push block 602 installed at its working end.

[0024] The four electric push rods 601 can drive the two guard plates 603 to slide by pushing the four push blocks 602 respectively, so that they can be raised during welding to provide protection, and stored away when not welding to save space.

[0025] like Figure 1 and Figure 5 As shown, a guard plate 603 is slidably installed in two slots on the upper surface of the fixture base 1, and one side surface of the guard plate 603 is fixedly connected to the push block 602.

[0026] The 603 protective plate prevents welding material from splattering everywhere, which could harm surrounding equipment and people or cause a fire.

[0027] like Figure 1 and Figure 5 As shown, air ducts 604 are installed in grooves on the other surface of both guard plates 603. A pipe 605 is installed at the inlet end of the air duct 604, and the pipe 605 passes through the guard plate 603 and is located on the outside.

[0028] By connecting the external industrial purifier to the duct 605, the air duct 604 can absorb and purify the fumes generated during welding, thereby preventing harm to people and pollution to the environment.

[0029] Working process or working principle: When welding a thin metal sheet, firstly, the distance between the sliding beam 2 and the fixed beam 3 is adjusted to be the same length as the thin metal sheet. Then, the two electric threaded rods 502 are activated to drive the upper clamping plate 503 and the lower clamping plate 504 to separate relative to each other, increasing the distance between the upper rubber 506 and the lower rubber 505. The two ends of the thin metal sheet are placed on the surfaces of the two lower rubbers 505 respectively. The pressure sensor 507 inside the lower clamping plate 504 can initially detect the pressure of the thin metal sheet. The electric threaded rods 502 are activated again to bring the upper clamping plate 503 and the lower clamping plate 504 closer together. When the upper rubber 506 presses against the upper surface of the thin metal sheet, the pressure sensor 507 will detect the pressure of the upper rubber 506 on the thin metal sheet. When it is the same as the pressure detected above, the two electric threaded rods 502 stop working, thus making the force uniform during clamping. Moreover, through the trapezoidal arrangement of the lower rubber 505 and the upper rubber 506, the lower rubber 505 and the upper rubber 506 have a large contact area with the thin metal sheet, thereby reducing the pressure on the thin metal sheet. By activating four electric push rods 601, four push blocks 602 are driven to move, thereby raising two guard plates 603. This prevents solder from splattering around during welding and thus preventing fire. The external industrial purifier is connected through pipe 605, and the welding fumes can be absorbed and purified through duct 604, thereby preventing harm to people and pollution to the environment.

[0030] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-functional fixture for edge-welding of thin metal sheets, characterized in that: The fixture includes a base plate (1), a sliding beam (2) is slidably mounted on the upper surface of the base plate (1), a fixed beam (3) is welded to the end of the upper surface of the base plate (1), a loading platform (4) is welded to the upper surface of both the sliding beam (2) and the fixed beam (3), a protective unit (5) is provided on one side surface of both loading platforms (4) for providing uniform force clamping, and a purification unit (6) is provided on the outer side surface of the base plate (1) for absorbing welding fumes during welding. The protection unit (5) includes an upper clamping plate (503) and a lower clamping plate (504). Pressure sensors (507) for detecting pressure are provided on one side surface of both the upper clamping plate (503) and the lower clamping plate (504). An upper rubber (506) is glued to the lower surface of the upper clamping plate (503), and a lower rubber (505) is glued to the upper surface of the lower clamping plate (504). The detection ends of the two pressure sensors (507) are in contact with one side surface of the lower rubber (505) and the upper rubber (506), respectively.

2. The multi-functional fixture for edge welding of thin metal sheets according to claim 1, characterized in that: A loading shell (501) is fixedly installed on one side surface of each of the two loading platforms (4). An electric threaded rod (502) is installed on the upper surface of the loading shell (501). The working end of the electric threaded rod (502) is located inside the loading shell (501) and is threadedly connected to the upper clamping plate (503) and the lower clamping plate (504).

3. The multi-functional fixture for edge welding of thin metal sheets according to claim 1, characterized in that: Both the lower rubber (505) and the upper rubber (506) are trapezoidal in shape to increase the stress-bearing area.

4. A multi-functional fixture for edge-welding of thin metal sheets according to claim 2, characterized in that: The upper clamping plate (503) is connected to the working end of the electric threaded rod (502) by a forward thread, and the lower clamping plate (504) is connected to the working end of the electric threaded rod (502) by a reverse thread.

5. A multi-functional fixture for edge-welding of thin metal sheets according to claim 1, characterized in that: The purification unit (6) includes an electric push rod (601), and four electric push rods (601) are provided. The four electric push rods (601) are respectively installed in four slots opened on the outer surface of the fixture base (1). The working end of each of the four electric push rods (601) is equipped with a push block (602).

6. A multi-functional fixture for edge-welding of thin metal sheets according to claim 3, characterized in that: A guard plate (603) is slidably installed in two slots on the upper surface of the fixture base (1), and one side surface of the guard plate (603) is fixedly connected to the push block (602).

7. A multi-functional fixture for edge-welding of thin metal sheets according to claim 6, characterized in that: A duct device (604) is installed in a groove on the other surface of each of the two guard plates (603). A pipe (605) is installed at the inlet end of the duct device (604), wherein the pipe (605) passes through the guard plate (603) and is located on the outside.

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