Metal plate butt welding device

Abstract

The invention discloses a metal plate butt welding device, which belongs to the technical field of welding and comprises a machine body, a first mounting frame, a second mounting frame and a welding gun. According to the device, positioning and clamping of the metal plates are achieved through the positioning roller and the abutting roller, and the second mounting frame can rotate around the positioning line to adapt to butt joint of the metal plates at different angles. The welding gun and the second mounting frame move synchronously through the linkage mechanism, it is guaranteed that the welding gun is located at the angular bisector position of the two metal plates all the time, and welding seam deviation is avoided. The device has the advantages of convenience in operation, high welding quality and the like, and is suitable for metal plate butt welding work.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a metal plate butt welding device. Background Art

[0002] In the metal processing industry, metal plate butt welding is a common connection process, which is widely used in automobile manufacturing, construction, machinery manufacturing and other fields. Traditional metal plate butt welding devices often have problems such as inaccurate positioning, uneven clamping force, and weld offset, which seriously affect the welding quality and production efficiency. In order to solve these problems, the market is in urgent need of a welding device that can accurately position and stably clamp metal plates and avoid weld offset during welding.

[0003] The metal plate butt welding device provided in this embodiment is designed precisely for the above-mentioned technical requirements. The device realizes precise positioning and stable clamping of the metal plate through the ingenious design of positioning rollers and abutting rollers. At the same time, the second mounting frame can rotate around the positioning line to adapt to the requirements of metal plate docking at different angles. In addition, the linkage mechanism between the welding gun and the second mounting frame further ensures the accurate position of the welding gun during the welding process and avoids the problem of weld offset. These innovative designs not only improve welding quality and production efficiency, but also reduce operating difficulty and labor costs, and have significant market application value. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, the purpose of the present invention is to provide a metal plate butt welding device, which can achieve the butt welding of two metal plates together.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a metal plate butt welding device, comprising a body, on which is installed: A first mounting frame and a second mounting frame for mounting two metal plates, wherein a plurality of positioning rollers and a plurality of abutting rollers are disposed inside the first mounting frame and the second mounting frame, and the positioning rollers and the abutting rollers are capable of clamping the corresponding metal plates, an opening for taking out the metal plates is disposed on one side of the first mounting frame and the second mounting frame, and a positioning line is disposed between the first mounting frame and the second mounting frame, and when the two metal plates are butt-jointed, the connection positions of the upper surfaces of the two metal plates coincide with the positioning line; A welding gun, which is mounted on the machine body, with the end of the welding gun facing the locating line, and the welding gun can move along the length direction of the locating line to perform welding work on two metal plates; The second mounting frame can rotate around the positioning line, so that the plate installed inside the first mounting frame is arranged horizontally, and the metal plate installed inside the second mounting frame is tilted upward from the positioning line at a preset angle.

[0006] Preferably, when the two metal plates are in the same plane, the welding gun will be perpendicular to the two metal plates and move along the plane containing the positioning line, and if the two metal plates are arranged at an angle, the welding gun will move along the angle bisector formed by the two metal plates, while ensuring that the end of the welding gun always points to the positioning line.

[0007] Preferably, a drive box is fixed to the rear side of the machine body, a first drive arm is fixed to the bottom of the second mounting frame, the first drive arm is an arc plate with the positioning line as the axis, the first drive arm is provided with teeth, and a first gear meshing with the teeth on the second drive arm is rotatably installed inside the drive box.

[0008] Preferably, the welding gun is fixed on a connecting arm, a second driving arm is fixed to the lower end of the connecting arm, the second driving arm is an arc plate with the positioning line as the axis, the second driving arm is provided with teeth, and a third gear meshing with the teeth on the second driving arm is rotatably installed inside the driving box.

[0009] Preferably, a second gear is rotatably installed inside the drive box, the second gear meshes with the teeth on the first drive arm, the second gear also meshes with the third gear, and the gear ratio between the second gear and the third gear is 1:2.

[0010] Preferably, the first mounting frame and the second mounting frame each include a side plate installed on one side, and the plurality of positioning rollers are rotatably installed on the side plate along a linear direction. A clamping box is slidably installed inside the first mounting frame and the second mounting frame, and the plurality of clamping rollers are rotatably installed inside the clamping box along a linear direction, and some of the clamping rollers extend to the outside of the clamping box.

[0011] Preferably, a pressure plate is slidably installed inside the first mounting frame and the second mounting frame, an elastic body is connected between the pressure plate and the abutment box, a first oil cylinder is fixed to the bottom of the first mounting frame and the second mounting frame, and the output end of the first oil cylinder is connected to the pressure plate.

[0012] Preferably, a plurality of guide bars are fixed to the bottom of the second mounting frame, the guide bars are arc bars with the positioning line as the axis, and the interior of the body is provided with guide grooves adapted to the guide bars.

[0013] Preferably, a support plate is fixed on the connecting arm, a slide plate is slidably mounted on the inner side of the support plate, a second oil cylinder for driving the slide plate to slide is fixed on the support plate, and the welding gun is fixed on the slide plate.

[0014] The beneficial effects of the present invention are: The combination of the positioning roller and the clamping roller not only ensures the stable clamping of the metal plate during the welding process, but also realizes the precise positioning of the upper surface of the metal plate. The second mounting frame can rotate around the positioning line, so that the metal plates installed inside the first mounting frame and the second mounting frame can be butted and welded at different angles. This flexibility expands the application range of the welding device.

[0015] The welding gun can automatically adjust its position according to the layout of the metal plates (plane or angle) to ensure that it is always located in the middle of the two metal plates. This design effectively avoids the problem of weld offset and improves the welding quality. By accurately controlling the position and movement path of the welding gun, the welding gun is prevented from touching other parts of the welding device during welding, thereby protecting the integrity and safety of the welding device. The gear system in the drive box realizes the linkage control of the welding gun and the second mounting frame.

[0016] An opening is provided on one side of the first mounting frame and the second mounting frame, so that the metal plate after welding can be conveniently taken out from the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the welding device.

[0018] Figure 2 for Figure 1 Enlarged view of point A in .

[0019] Figure 3 This is an internal cross-sectional view of the drive box.

[0020] Figure 4 It is a structural schematic diagram of the second mounting frame.

[0021] Figure 5 It is an internal cross-sectional view of the second mounting frame.

[0022] Figure 6 A side view of the welding device.

[0023] Figure 7 This is a connection diagram of two metal plates on the same plane.

[0024] Figure 8 This is a connection diagram of two metal plates arranged at an angle.

[0025] In the figure: 1, machine body, 2, first mounting frame, 3, second mounting frame, 4, welding gun, 5, connecting arm, 6, first driving arm, 7, driving box, 8, first gear, 9, arc slide, 10, second gear, 11, third gear, 12, second driving arm, 13, first oil cylinder, 14, guide bar, 15, support plate, 16, second oil cylinder, 17, positioning roller, 18, side plate, 19, slide plate, 20, tightening box, 21, elastic body, 22, pressure plate, 23, tightening roller. DETAILED DESCRIPTION

[0026] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0027] Embodiment 1 like Figure 1-Figure 8 As shown, in this embodiment, a metal plate butt welding device is provided, which includes a body 1, on which a first mounting frame 2 and a second mounting frame 3 for mounting two metal plates and a welding gun 4 are installed.

[0028] The first mounting frame 2 and the second mounting frame 3 are both provided with a plurality of positioning rollers 17 and a plurality of abutting rollers 23 inside. The positioning rollers 17 and the abutting rollers 23 can clamp the corresponding metal plates. The positioning rollers 17 are arranged on the upper part of the first mounting frame 2 and the second mounting frame 3, while the abutting rollers 23 are installed on the lower part, and they apply pressure to the metal plates from the bottom to make them close to the positioning rollers 17. The positioning rollers 17 play a key positioning role here, and can effectively and accurately position the upper surface of the metal plate. At the same time, this design not only realizes the clamping function, but also ensures the accurate positioning of the metal plate. One side of the first mounting frame 2 and the second mounting frame 3 is provided with an opening for taking out the metal plate. The purpose of the design of the opening is to facilitate the removal of the metal plate after welding is completed. When the two metal plates are welded together, they may be fixed at a certain angle, resulting in the inability to directly remove them along the conveying direction of the positioning rollers 17 and the abutting rollers 23. To solve this problem, an opening is deliberately set on one side so that the welded metal plate can be easily taken out from the opening. A positioning line is set between the first mounting frame 2 and the second mounting frame 3. When the two metal plates are butt-jointed, the connection position of the upper surfaces of the two metal plates coincides with the positioning line.

[0029] The end of the welding gun 4 is mounted on the machine body 1, facing the positioning line, and the welding gun 4 can move along the length direction of the positioning line to perform welding work on two metal plates. After moving along the positioning line, the welding gun 4 can weld the two metal plates together.

[0030] Among them, the second mounting frame 3 can rotate around the positioning line, so that the plate installed inside the first mounting frame 2 is arranged horizontally, and the metal plate installed inside the second mounting frame 3 is tilted upward from the positioning line at a preset angle. During the rotation of the second mounting frame 3, the end away from the positioning line will be tilted upward. At the same time, the staff has prepared in advance the incisions on the two metal plates to be welded, and these incisions are preset according to the expected inclination angles of the two metal plates. Therefore, when the two metal plates are adjusted to the same straight line during the welding process, their connection surfaces will appear as a straight surface, which is convenient for accurate docking and welding through the incisions.

[0031] Embodiment 2 like Figure 1-Figure 6 As shown, based on the first embodiment, this embodiment provides a linkage mechanism between the welding gun 4 and the second mounting frame 3, which is as follows: When the two metal plates are on the same plane, the welding gun 4 will be perpendicular to the two metal plates and move along the plane containing the positioning line. If the two metal plates are arranged at an angle, the welding gun 4 will move along the angle bisector formed by the two metal plates, while ensuring that the end of the welding gun 4 always points to the positioning line and that the welding gun 4 is always located in the middle of the two metal plates. This middle position can ensure that the welding gun 4 will not deviate to one side during welding. In particular, when the two metal plates are arranged at an angle, locating the welding gun 4 at the angle bisector position can avoid weld deviation and also prevent the welding gun 4 from touching other positions of the welding device.

[0032] A driving box 7 is fixed to the rear side of the body 1, and a first driving arm 6 is fixed to the bottom of the second mounting frame 3. The first driving arm 6 is an arc plate with the positioning line as the axis. The first driving arm 6 is provided with teeth. A first gear 8 meshing with the teeth on the first driving arm 6 is rotatably installed inside the driving box 7. The first gear 8 in the driving box 7 drives the first driving arm 6 (and the second mounting frame 3) to rotate along the axis of the positioning line by meshing with the teeth on the first driving arm 6.

[0033] The welding gun 4 is fixed on the connecting arm 5, and a second driving arm 12 is fixed at the lower end of the connecting arm 5. The second driving arm 12 is an arc plate with the positioning line as the axis. An arc slide 9 adapted to the second driving arm 12 is provided inside the driving box 7. The second driving arm 12 moves along the arc slide 9. The second driving arm 12 is provided with teeth. A third gear 11 meshing with the teeth on the second driving arm 12 is rotatably installed inside the driving box 7. The third gear 11 in the driving box 7 drives the second driving arm 12 (and the connecting arm 5 and the welding gun 4) to rotate along the axis of the positioning line by meshing with the teeth on the second driving arm 12, thereby realizing the position adjustment of the welding gun 4.

[0034] The second gear 10 is rotatably mounted inside the driving box 7. The second gear 10 meshes with the teeth on the first driving arm 6. The second gear 10 also meshes with the third gear 11. The gear ratio between the second gear 10 and the third gear 11 is 1:2. The second gear 10 acts as an intermediary to achieve different speed or displacement relationships between the first driving arm 6 and the second driving arm 12 (i.e., the welding gun 4) through the gear ratio of 1:2. This means that when the first driving arm 6 rotates a certain angle, the second driving arm 12 (welding gun 4) will rotate at half the speed or displacement, thereby ensuring that the welding gun 4 is always located at the angular bisector position of the two metal plates.

[0035] Embodiment 3 like Figure 1-Figure 6 As shown, based on the first and second embodiments, this embodiment provides an internal diagram of the first mounting frame 2 and the second mounting frame 3, which are as follows: The first mounting frame 2 and the second mounting frame 3 each include a side plate 18 mounted on one side, a plurality of positioning rollers 17 are rotatably mounted on the side plate 18 along a straight line direction, a clamping box 20 is slidably mounted inside the first mounting frame 2 and the second mounting frame 3, a plurality of clamping rollers 23 are rotatably mounted inside the clamping box 20 along a straight line direction, and some of the clamping rollers 23 extend to the outside of the clamping box 20, these clamping rollers 23 further clamp the metal plate to prevent the metal plate from moving or deforming during welding, the metal plate is placed on the positioning rollers 17, and is supported and guided by the positioning rollers 17. The clamping box 20 is slidably mounted inside the first mounting frame 2 and the second mounting frame 3, and the clamping rollers 23 inside it clamp the metal plate to ensure the accuracy of the welding position.

[0036] A pressing plate 22 is slidably installed inside the first mounting frame 2 and the second mounting frame 3, and an elastic body 21 is connected between the pressing plate 22 and the abutting box 20. A first oil cylinder 13 is fixed to the bottom of the first mounting frame 2 and the second mounting frame 3, and the output end of the first oil cylinder 13 is connected to the pressing plate 22. When the metal plate is placed between the positioning roller 17 and the abutting roller 23, the first oil cylinder 13 is started to push the pressing plate 22 to move. The pressing plate 22 is connected to the abutting box 20 through the elastic body 21, and the clamping force is adjusted according to the thickness of the metal plate. When the appropriate clamping force is reached, the welding process begins.

[0037] A plurality of guide bars 14 are fixed to the bottom of the second mounting frame 3. The guide bars 14 are arc bars with the positioning line as the axis. A guide groove adapted to the guide bars 14 is provided inside the body 1. The guide bars 14 can support the second mounting frame 3 so that the second mounting frame 3 can rotate smoothly along the positioning line.

[0038] A support plate 15 is fixed on the connecting arm 5, a slide plate 19 is slidably mounted on the inner side of the support plate 15, a second oil cylinder 16 for driving the slide plate 19 to slide is fixed on the support plate 15, and a welding gun 4 is fixed on the slide plate 19. During the welding process, according to the actual position and shape of the metal plate, the second oil cylinder 16 is started to push the slide plate 19 to slide. The welding gun 4 on the slide plate 19 moves accordingly to ensure the accuracy of the welding position.

[0039] Working principle: The metal plate to be welded is placed between the positioning roller 17 and the abutting roller 23 of the first mounting frame 2 and the second mounting frame 3, and is supported and guided by the positioning roller 17. Then, the first oil cylinder 13 is activated to push the pressing plate 22 to move, and the pressing plate 22 is connected to the abutting box 20 through the elastic body 21, and the clamping force is adjusted according to the thickness of the metal plate. The abutting roller 23 inside the abutting box 20 presses the metal plate to ensure the accuracy of the welding position.

[0040] According to the arrangement of the metal plates (plane or angle), when the two metal plates are on the same plane, the welding gun 4 is perpendicular to the metal plates and moves along the plane containing the positioning line; when the two metal plates are arranged at an angle, the welding gun 4 moves along the angle bisector formed by the two metal plates, and ensures that the end of the welding gun 4 always points to the positioning line.

[0041] After the position adjustment of the welding gun 4 is completed, the welding equipment is started to weld the two metal plates. The welding gun 4 moves along the length direction of the positioning line to perform welding work on the two metal plates.

[0042] After welding is completed, the welded metal plate is taken out from the first mounting frame 2 and the second mounting frame 3 through the opening. This design makes the process of taking out the metal plate more convenient.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A metal plate butt welding device, comprising a body (1), characterized in that: The machine body (1) is equipped with: A first mounting frame (2) and a second mounting frame (3) for mounting two metal plates, wherein a plurality of positioning rollers (17) and a plurality of abutting rollers (23) are provided inside the first mounting frame (2) and the second mounting frame (3), wherein the positioning rollers (17) and the abutting rollers (23) are capable of clamping the corresponding metal plates, an opening for taking out the metal plates is provided on one side of the first mounting frame (2) and the second mounting frame (3), a positioning line is provided between the first mounting frame (2) and the second mounting frame (3), and when the two metal plates are butt-jointed, the connection position of the upper surfaces of the two metal plates coincides with the positioning line; A welding gun (4) is mounted on the machine body (1), the end of the welding gun (4) is oriented toward the positioning line, and the welding gun (4) is movable along the length direction of the positioning line to perform welding work on two metal plates; The second mounting frame (3) is capable of rotating around a positioning line, so that the plate installed inside the first mounting frame (2) is arranged horizontally, and the metal plate installed inside the second mounting frame (3) is tilted upward from the positioning line at a preset angle.

2. A metal plate butt welding device according to claim 1, characterized in that: When the two metal plates are on the same plane, the welding gun (4) will be perpendicular to the two metal plates and move along the plane containing the positioning line, and if the two metal plates are arranged at an angle, the welding gun (4) will move along the angle bisector formed by the two metal plates, while ensuring that the end of the welding gun (4) always points to the positioning line.

3. A metal plate butt welding device according to claim 2, characterized in that: A drive box (7) is fixed to the rear side of the machine body (1), a first drive arm (6) is fixed to the bottom of the second mounting frame (3), the first drive arm (6) is an arc plate with a positioning line as an axis, the first drive arm (6) is provided with teeth, and a first gear (8) meshing with the teeth on the first drive arm (6) is rotatably installed inside the drive box (7).

4. A metal plate butt welding device according to claim 3, characterized in that: The welding gun (4) is fixed on the connecting arm (5), a second driving arm (12) is fixed to the lower end of the connecting arm (5), the second driving arm (12) is an arc plate with a positioning line as an axis, the second driving arm (12) is provided with teeth, and a third gear (11) meshing with the teeth on the second driving arm (12) is rotatably installed inside the driving box (7).

5. A metal plate butt welding device according to claim 4, characterized in that: A second gear (10) is rotatably mounted inside the drive box (7), the second gear (10) meshing with teeth on the first drive arm (6), the second gear (10) also meshing with a third gear (11), and the gear ratio between the second gear (10) and the third gear (11) is 1:

2.

6. A metal plate butt welding device according to claim 1, characterized in that: The first mounting frame (2) and the second mounting frame (3) both comprise a side plate (18) mounted on one side, a plurality of positioning rollers (17) are rotatably mounted on the side plate (18) along a linear direction, abutment boxes (20) are slidably mounted inside the first mounting frame (2) and the second mounting frame (3), a plurality of the abutment rollers (23) are rotatably mounted inside the abutment boxes (20) along a linear direction, and some of the abutment rollers (23) extend to the outside of the abutment boxes (20).

7. A metal plate butt welding device according to claim 6, characterized in that: A pressing plate (22) is slidably mounted inside the first mounting frame (2) and the second mounting frame (3); an elastic body (21) is connected between the pressing plate (22) and the abutting box (20); a first oil cylinder (13) is fixed at the bottom of the first mounting frame (2) and the second mounting frame (3); an output end of the first oil cylinder (13) is connected to the pressing plate (22).

8. The metal plate butt welding device according to claim 1, characterized in that: A plurality of guide bars (14) are fixed to the bottom of the second mounting frame (3), wherein the guide bars (14) are arc bars with the positioning line as the axis, and guide sliding grooves adapted to the guide bars (14) are provided inside the machine body (1).

9. A metal plate butt welding device according to claim 8, characterized in that: A support plate (15) is fixed on the connecting arm (5), a slide plate (19) is slidably mounted on the inner side of the support plate (15), a second oil cylinder (16) for driving the slide plate (19) to slide is fixed on the support plate (15), and the welding gun (4) is fixed on the slide plate (19).

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