Welding device capable of achieving one-time forming

Abstract

The invention relates to a one-time forming welding device which is used for welding a fuel tank, the fuel tank comprises an end cover and a cylinder body, the device comprises a bottom plate, an annular welding unit, a first lifting unit, a second lifting unit and two pressing units with suction cup units and hydraulic rods, and the pressing units are installed on the two sides of the bottom plate. The end cover is installed on the first lifting unit, the cylinder body is installed on the second lifting unit, the second lifting unit lifts the cylinder body to a first preset position, the first lifting unit lifts the end cover to a second preset position, the suction cup unit sucks the end cover and unfolds the end cover, and the unfolded end cover is aligned with the cylinder body. And then the annular welding unit completes one-time welding. The welding gun is installed on the annular rail, the welding gun can surround the position to be welded by a circle, welding is completed, welding can be completed at a time, the position of a workpiece does not need to be adjusted, operation is easy, and efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to a one-step forming welding device. Background Art

[0002] A fuel tank is a container for oil. It refers specifically to a device for storing fuel oil on a machine driven by a diesel or gasoline engine. It especially refers to an auxiliary tank or a disposable tank that can be used to increase the range or carry condensed oil. A fuel tank is a special container for storing hydraulic oil or hydraulic fluid in a hydraulic system. In addition to storing oil, a fuel tank also plays a role in heat dissipation, separating bubbles in the oil, and precipitating impurities in a hydraulic system. There are two types of fuel tanks: open tanks and closed tanks. The open tank has a simple structure and is easy to install and maintain. It is commonly used in hydraulic systems; the closed tank is generally used for pressure tanks.

[0003] The invention patent with the publication number CN109773304A discloses a dual-track welding device for an intercooler, including a base plate and a frame, and also including a rotation positioning unit, a welding unit, a lower support unit, and an upper clamping unit. The workpiece to be welded is fixed by the rotation positioning unit and the upper clamping unit to the lower support unit, and is welded by the welding units on both sides. After welding one side, the rotation positioning unit flips the workpiece to weld the other side. The device uses a dual-track, dual-gun automatic welding device to achieve dual-track welding. The left and right frames are set up to run the left and right welding guns along the track. The welding guns are run to the starting position of the workpiece to start welding. After welding one side, the hand wheel is rotated to flip the workpiece. The patent uses manual flipping, which is inefficient. The welding is not completed in one time and needs to be repositioned, which is prone to multiple welding or missed welding.

[0004] Therefore, providing a welding device that can weld in one go and does not require turning over the workpiece during welding is an issue that needs to be urgently addressed. Summary of the invention

[0005] The purpose of the present invention is to provide a one-step forming welding device in order to overcome the defects of the above-mentioned prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a one-step forming welding device, which is used for welding a fuel tank, wherein the fuel tank comprises an end cover and a barrel, and the device comprises a base plate, an annular welding unit, a first lifting unit, a second lifting unit and two clamping units having suction cup units and hydraulic rods, wherein the annular welding unit, the first lifting unit and the second lifting unit are mounted on the base plate, the suction cup unit and the hydraulic rod are movably mounted on the clamping unit, the clamping unit is mounted on both sides of the base plate, the end cover is mounted on the first lifting unit, the barrel is mounted on the second lifting unit, the second lifting unit lifts the barrel to a first predetermined position, the first lifting unit lifts the end cover to a second predetermined position, the suction cup unit sucks the end cover and unfolds it, the unfolded end cover is aligned with the barrel, and then the annular welding unit completes one-step welding.

[0008] As a preferred technical solution, the first lifting unit includes a first positioning plate, and the first positioning plate and the end cover are consistent in size.

[0009] As a preferred technical solution, the suction cup unit and the first lifting unit are coaxial.

[0010] As a preferred technical solution, the suction cup unit and the barrel are coaxial when fully deployed.

[0011] As a preferred technical solution, the clamping unit includes a cabinet and a connecting rod mechanism, and the suction cup unit is connected to the cabinet through the connecting rod mechanism.

[0012] As a preferred technical solution, the annular welding unit includes an annular track, a welding gun and a second movable unit, the welding gun is mounted on the second movable unit, and the second movable unit is mounted on the annular track.

[0013] As a preferred technical solution, the device further includes a first moving unit and a moving groove, wherein the moving groove is mounted on the bottom plate, the first moving unit is mounted on the moving groove, and the annular track is mounted on the first moving unit.

[0014] As a preferred technical solution, the device further comprises a laser pen, and the laser pen is mounted on the second mobile unit.

[0015] As a preferred technical solution, the laser pen and the welding gun are aligned.

[0016] As a preferred technical solution, the second lifting unit includes a second positioning plate, and the cylinder body is placed on the second positioning plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The welding gun of the present invention is installed on a circular track, and the welding gun can circle around the position to be welded and complete the welding. The welding can be completed in one time without adjusting the position of the workpiece, and the operation is simple and efficient.

[0019] 2. The first positioning plate and the end cover of the present invention are of the same size, and the suction cup unit and the first lifting mechanism are coaxial. When the suction cup unit is fully unfolded, the end cover and the barrel are coaxial and fit together, thereby achieving positioning of the end cover and the barrel and facilitating welding.

[0020] 3. The present invention is provided with a laser pen, which is aligned with the welding gun. The laser pen emits light to guide the welding position of the welding gun, thereby facilitating the positioning of the welding position of the welding gun.

[0021] 4. The present invention provides a first movable unit and a movable groove, so that the device can adjust the position of the welding gun in real time according to the welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a front view of the present invention.

[0024] 1. Base plate; 2. Annular track; 3. First moving unit; 4. Second moving unit; 5. Welding gun; 6. Cabinet; 7. Suction cup unit; 8. Hydraulic rod; 9. First lifting unit; 10. Second lifting unit. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] A fuel tank is a container for oil. It refers specifically to a device for storing fuel oil on a machine driven by a diesel engine or a gasoline engine. It especially refers to an auxiliary tank or a disposable tank that can be used to increase the range or carry condensed oil. A fuel tank is a special container for storing hydraulic oil or hydraulic fluid in a hydraulic system. In addition to storing oil, the fuel tank also plays a role in heat dissipation, separating bubbles in the oil, and precipitating impurities in the hydraulic system. There are two types of fuel tanks: open tanks and closed tanks. The open tank has a simple structure and is easy to install and maintain. This form is widely used in hydraulic systems; closed tanks are generally used for pressure tanks. The existing technical solution uses a welding machine and a welding gun for rail welding. After welding, the entire workpiece is turned over and the other side is welded. The efficiency is low and the degree of automation is not high.

[0027] The present invention provides a one-time forming welding device. The welding gun of the present invention is installed on a circular track, and the welding gun can circle around the position to be welded and complete welding. The welding can be completed in one time without adjusting the position of the workpiece. The operation is simple and the efficiency is high. The first positioning plate of the present invention is consistent in size with the end cover, and the suction cup unit and the first lifting mechanism are coaxial. When the suction cup unit is fully unfolded, the end cover and the barrel are coaxial, and the end cover and the barrel are matched together to achieve the positioning of the end cover and the barrel, which is convenient for welding. The present invention is provided with a laser pen, and the laser pen and the welding gun are aligned. The laser pen emits light to guide the welding position of the welding gun, which is convenient for positioning the welding position of the welding gun. The present invention provides a first movable unit and a movable groove, so that the device can adjust the position of the welding gun in real time according to the welding position.

[0028] Example 1

[0029] like Figure 1 and Figure 2 As shown, a one-step forming welding device is used for welding a fuel tank, the fuel tank comprises an end cover and a barrel, the device comprises a base plate 1, an annular welding unit, a first lifting unit 9, a second lifting unit 10 and two clamping units with suction cup units 7 and hydraulic rods 8, the annular welding unit, the first lifting unit 9 and the second lifting unit 10 are mounted on the base plate 1, the suction cup unit 7 and the hydraulic rod 8 are movably mounted on the clamping unit, the clamping unit is mounted on both sides of the base plate 1, the end cover is mounted on the first lifting unit 9, the barrel is mounted on the second lifting unit 10, the second lifting unit 10 lifts the barrel to a first predetermined position, the first lifting unit 9 lifts the end cover to a second predetermined position, the suction cup unit 7 sucks the end cover and unfolds it, the unfolded end cover and the barrel are aligned, and then the annular welding unit completes one-step welding.

[0030] The first lifting unit 9 includes a first positioning plate, and the first positioning plate and the end cover are of the same size.

[0031] The suction cup unit 7 and the first lifting unit 9 are coaxial. The fully deployed suction cup unit 7 and the barrel are coaxial.

[0032] In this embodiment, the end cap and the barrel are placed on the first lifting unit 9 and the second lifting unit 10 in sequence. The second lifting unit 10 lifts the barrel to a preset height. The first lifting unit 9 lifts the end cap to a predetermined height. The suction cup unit 7 sucks the end cap. The first lifting unit 9 descends. Then the hydraulic rod 8 extends to unfold the suction cup unit and drive the end cap to align with the barrel. The annular welding unit aligns with the position to be welded for annular welding, and the molding is completed in one step.

[0033] The first positioning plate and the end cover are of the same size, and the first positioning plate can fit the end cover perfectly. At the same time, the suction cup unit 7 and the first lifting unit 9 are coaxial, so that the suction cup unit 7 sucks the center position of the end cover. After being fully unfolded, the suction cup unit 7 and the barrel body are coaxial, thereby realizing the positioning of the end cover and the barrel body.

[0034] The pressing unit includes a cabinet 6 and a connecting rod mechanism, and the suction cup unit 7 is connected to the cabinet 6 through the connecting rod mechanism.

[0035] In this embodiment, the suction cup unit 7 is folded and unfolded by a connecting rod mechanism, and is installed on the cabinet 6 through the connecting rod mechanism to provide support; the connecting rod mechanism includes a connecting rod, a connecting shaft, a connecting hole, etc. The cabinet 6 is also provided with a hydraulic cylinder, etc., to control the extension and retraction of the hydraulic rod 8, and the hydraulic rod 8 is connected to one end of the suction cup unit 7 to control the folding and unfolding of the suction cup unit 7.

[0036] The annular welding unit comprises an annular track 2 , a welding gun 5 and a second moving unit 4 . The welding gun 5 is mounted on the second moving unit 4 , and the second moving unit 4 is mounted on the annular track 2 .

[0037] The device further comprises a first moving unit 3 and a moving groove, wherein the moving groove is mounted on the bottom plate 1, the first moving unit 3 is mounted on the moving groove, and the annular track 2 is mounted on the first moving unit 3. The device further comprises a laser pen, which is mounted on the second moving unit 4. The laser pen is aligned with the welding gun 5.

[0038] In this embodiment, the first moving unit includes a moving wheel and a motor, and other moving modes may also be used. The first moving unit 3 is installed in the moving groove and can be moved accordingly according to the position to be welded. The welding gun 5 is installed on the circular track 2 through the second moving unit 4. The second moving unit 4 includes a motor and a moving wheel (other modes may also be used) and moves on the circular track 2, circling around the position to be welded, welding is performed, and the welding is completed in sequence. A laser pen is also provided on the second moving unit 4. The positions of the laser pen and the welding gun are arranged up and down. The rays emitted by the laser pen and the welding gun are on the same vertical plane. The rays of the laser pen are used to locate the position to be welded and indicate the position where the welding gun will weld.

[0039] The second lifting unit 10 comprises a second positioning plate, and the cylinder body is placed on the second positioning plate. The positioning plate positions the cylinder body.

[0040] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A one-step forming welding device, the device is used for welding a fuel tank, the fuel tank comprises an end cover and a barrel, characterized in that: The device comprises a base plate (1), an annular welding unit, a first lifting unit (9), a second lifting unit (10) and two pressing units having a suction cup unit (7) and a hydraulic rod (8); the annular welding unit, the first lifting unit (9) and the second lifting unit (10) are mounted on the base plate (1); the suction cup unit (7) and the hydraulic rod (8) are movably mounted on the pressing unit; the pressing unit is mounted on both sides of the base plate (1); the end cover is mounted on the first lifting unit (9); the barrel is mounted on the second lifting unit (10); the second lifting unit (10) lifts the barrel to a first predetermined position; the first lifting unit (9) lifts the end cover to a second predetermined position; the suction cup unit (7) sucks the end cover and unfolds it; the unfolded end cover and the barrel are aligned; and then the annular welding unit completes a welding operation.

2. A one-step forming welding device according to claim 1, characterized in that: The first lifting unit (9) comprises a first positioning plate, and the first positioning plate and the end cover are of the same size.

3. The one-step forming welding device according to claim 1, characterized in that: The suction cup unit (7) and the first lifting unit (9) are coaxial.

4. The one-step forming welding device according to claim 1, characterized in that: The fully expanded suction cup unit (7) and the barrel are coaxial.

5. The one-step forming welding device according to claim 1, characterized in that: The pressing unit comprises a cabinet (6) and a connecting rod mechanism, and the suction cup unit (7) is connected to the cabinet (6) via the connecting rod mechanism.

6. The one-step forming welding device according to claim 1, characterized in that: The annular welding unit comprises an annular track (2), a welding gun (5) and a second movable unit (4); the welding gun (5) is mounted on the second movable unit (4), and the second movable unit (4) is mounted on the annular track (2).

7. A one-step forming welding device according to claim 6, characterized in that: The device further comprises a first moving unit (3) and a moving groove, wherein the moving groove is mounted on the base plate (1), the first moving unit (3) is mounted on the moving groove, and the annular track (2) is mounted on the first moving unit (3).

8. The one-step forming welding device according to claim 6, characterized in that: The device also includes a laser pen, which is mounted on the second mobile unit (4).

9. The one-step forming welding device according to claim 8, characterized in that: The laser pen and welding gun (5) are aligned.

10. The one-step forming welding device according to claim 1, characterized in that: The second lifting unit (10) comprises a second positioning plate, and the cylinder body is placed on the second positioning plate.

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