Butt welding equipment for electric vehicle hub production

Abstract

The invention discloses butt welding equipment for electric vehicle hub production, which belongs to the technical field of welding and comprises a workbench, a forming cylinder, a guide column and a welding gun. A working face is arranged on the surface of the workbench and used for placing a plate as a basic blank for forming the hub outer frame. The forming cylinder is arranged above the workbench, and the arc surface of the forming cylinder serves as a forming surface, so that a plate is tightly attached and bent into an annular body. The two guide columns form pressure applying tracks on the two sides of the forming cylinder and move along the arc face, a plate is bent and attached to the surface of the forming cylinder, and the two ends of the plate are connected to form a welding line. And the end part of the welding gun can move along the welding line to finish welding. A plurality of adsorption openings communicated with the air suction channel are formed in the surface of the forming cylinder, adsorption force is applied to the plate, and movement or dislocation is prevented. A sealing ring is arranged on the periphery of the adsorption opening to improve sealing performance. A supporting plate and a ventilation hole are arranged in the adsorption opening, the structure of an air suction channel is optimized, the air suction efficiency is improved, and uniform distribution of adsorption force is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, and particularly to a butt welding device for the production of electric vehicle wheels. Background Art

[0002] The accuracy and efficiency in the manufacturing process of wheels directly affect the overall performance and production cost of electric vehicles. Most traditional wheel production methods adopt casting or forging processes. Although these processes can produce wheels that meet the requirements, they have the problem of low production efficiency.

[0003] With the continuous progress of welding technology, the application of butt welding process in wheel production has gradually received attention. The butt welding process has the advantages of low energy consumption, high material utilization rate, short production cycle, etc., and can meet the requirements of electric vehicle wheels for lightweight, high strength and accuracy. However, there are still some deficiencies in the existing butt welding equipment during the wheel production process, such as inaccurate positioning of plate parts, low bending accuracy, unstable welding quality, etc. These problems directly affect the production efficiency and product quality of wheels. Summary of the Invention

[0004] Aiming at the above-mentioned existing technical deficiencies, the purpose of the present invention is to provide a butt welding device for the production of electric vehicle wheels, which can realize a welding device that shortens the positioning time and improves the installation efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a butt welding device for the production of electric vehicle wheels, including: A workbench, on the surface of which there is a working surface for placing plate parts; A forming cylinder, which is arranged above the workbench, and the axis of the forming cylinder is parallel to the working surface; Guide columns, the number of which is two. The two guide columns respectively form a pressing track on both sides of the forming cylinder. There is a gap adapted to the thickness of the plate part between the pressing track and the forming cylinder. The pressing track forms an arc surface around the forming cylinder, and the axis of the arc surface coincides with the axis of the forming cylinder. During the movement along the pressing track, the guide columns can bend the plate part and make the plate part adhere to the surface of the forming cylinder. The two ends of the plate part after bending are connected on the surface of the forming cylinder to form a welding line; A welding torch, the end of which can move along the direction of the welding line.

[0006] Preferably, there are a plurality of adsorption ports on the surface of the forming cylinder, and an air suction channel is arranged inside the forming cylinder. The adsorption ports are communicated with the air suction channel. When the plate part adheres to the surface of the adsorption port, the adsorption port can apply an adsorption force to the plate part.

[0007] Preferably, a sealing ring is provided around the adsorption port, and the outer surface of the sealing ring is flush with the outer surface of the forming cylinder.

[0008] Preferably, a support plate is provided inside the adsorption port, and a plurality of ventilation holes are provided inside the support plate.

[0009] Preferably, an empty groove is provided on the support plate, the empty groove is annularly arranged at the connection between the support plate and the sealing ring, and the empty groove is communicated with the inside of the air suction channel.

[0010] Preferably, a vertical plate is provided on the surface of the workbench, the end of the forming cylinder is fixed on the vertical plate, an arc-shaped slideway is provided inside the vertical plate, and the end of the guiding column is vertically inserted into the inside of the arc-shaped slideway and can move along the arc-shaped slideway.

[0011] Preferably, arc-shaped blocks are fixed at one ends of the two guiding columns extending into the arc-shaped slideway, an arc-shaped plate is fixed on the arc-shaped block, a gap is left between the two arc-shaped plates, and a first gear is meshed and connected between the two arc-shaped plates, and a motor for driving the first gear to rotate is fixed inside the vertical plate.

[0012] Preferably, two positioning blocks are slidably mounted on the surface of the workbench, and the positioning blocks are symmetrically arranged on both sides of the forming cylinder.

[0013] Preferably, the two positioning blocks are respectively fixed on two toothed plates, a second gear is meshed and connected between the two toothed plates, and a motor for driving the second gear to rotate is provided inside the workbench.

[0014] Preferably, a track arranged along the axial direction of the forming cylinder is fixed on the vertical plate, the welding torch is fixed on a slider, and the slider is slidably mounted on the track.

[0015] The beneficial effects of the present invention are as follows: Through the adsorption function of the forming cylinder, the plate is firmly adsorbed on the forming cylinder by the adsorption force, preventing the plate from moving or being displaced during the bending and welding processes, and improving the work efficiency. The guiding column moves along the preset pressing trajectory, ensuring that the length of the bent plate is the same as the circumference of the forming cylinder, and improving the processing accuracy.

[0016] A support plate and ventilation holes are provided inside the adsorption port, which can optimize the structure of the air suction channel, improve the air suction efficiency, and ensure that the adsorption force is evenly distributed on the plate, avoiding deformation or damage of the plate caused by insufficient or excessive local adsorption force.

[0017] By driving the movement of the guiding column and the positioning block by the motor, and the welding operation of the welding torch, automatic production is realized, and the production efficiency is improved. Description of the Drawings

[0018] Figure 1 Partial connection cross-sectional view of the workbench and the formed body.

[0019] Figure 2 Process diagram of the butt welding equipment for bending the plate.

[0020] Figure 3 Connection diagram of the track and the welding torch of the present invention.

[0021] Figure 4 Internal cross-sectional view of the vertical plate.

[0022] Figure 5 Internal cross-sectional view of the workbench.

[0023] Figure 6 Schematic diagram of the internal support plate of the forming cylinder.

[0024] Figure 7 Three-dimensional view of the forming cylinder.

[0025] In the figure: 1. Workbench, 2. Forming cylinder, 3. Guide post, 4. Welding torch, 5. Suction port, 6. Air suction channel, 7. Sealing ring, 8. Support plate, 9. Empty groove, 10. Vertical plate, 11. Arc-shaped slideway, 12. Positioning block, 13. Tooth plate, 14. Second gear, 15. Track, 16. Slide block, 17. Arc-shaped plate, 18. First gear, 19. Arc-shaped block. Specific implementation mode

[0026] The following uses specific embodiments to illustrate the present invention, but it is not a limitation to the invention.

[0027] Embodiment 1 As Figures 1 - 6 shown, in this embodiment, a butt welding equipment for producing electric vehicle wheels is provided, including a workbench 1, a forming cylinder 2, a guide post 3 and a welding torch 4.

[0028] The surface of the workbench 1 is provided with a working surface for placing the plate. The plate exists as a basic blank for forming the outer frame of the wheel hub. The main function of this butt welding equipment is to connect the two ends of the plate and perform welding along the welding line through the welding torch 4, and finally shape the plate into a complete ring. This ring will be used as a key component for forming the wheel hub in subsequent processes.

[0029] The working surface is a flat and smooth surface, which is made of metal. Since the frictional force between the working surface and the plate is small, the plate can slide and adjust its position more easily during the bending and welding operations.

[0030] The forming cylinder 2 is arranged above the workbench 1, and the axis of the forming cylinder 2 is parallel to the work surface. In this embodiment, the plate is placed between the forming cylinder 2 and the work surface. The arc surface of the forming cylinder 2 is the forming surface. When the plate is tightly attached to this forming surface, the forming operation of the plate can be successfully completed. The two ends of the workbench 1 extend to the left and right, while the axis of the forming cylinder 2 is arranged in the front-to-back direction. This horizontal arrangement of the forming cylinder 2 facilitates the placement of the plate, allowing the operator to accurately place the plate in the specified position, thereby ensuring the smooth progress of the entire forming and welding process.

[0031] There are two guide posts 3, each forming a pressure track on either side of the forming tube 2. A gap corresponding to the thickness of the sheet metal is left between the pressure track and the forming tube 2. The pressure track forms an arc surface on the periphery of the forming tube 2, with the axis of the arc surface coinciding with the axis of the forming tube 2. The two guide posts 3 are respectively arranged on the left and right sides of the forming tube 2 and move in opposite directions along the preset pressure track. During this movement, the guide posts 3 apply pressure to the sheet metal, causing it to move in close contact with the surface of the forming tube 2. As the guide posts 3 continue to act, the sheet metal is gradually bent into an arc with the same radius as the forming tube 2, ensuring that the length of the bent sheet metal is the same as the circumference of the forming tube 2. As the guide posts 3 move along the pressure track, they can bend the sheet metal and adhere it to the surface of the forming tube 2. After bending, the two ends of the sheet metal are connected on the surface of the forming tube 2 to form a weld line. A clearance space is provided inside the forming tube 2, located inside the weld line.

[0032] The end of the welding gun 4 can move along the direction of the welding line. When the welding gun 4 moves along the welding line, it can weld the plates together.

[0033] Example 2 like Figures 1 - 7 As shown, based on the first embodiment, this embodiment provides the adsorption function of the forming cylinder 2 on the plate, which is as follows: The surface of the forming tube 2 is provided with a plurality of suction ports 5, and the interior of the forming tube 2 is provided with a suction channel 6, which is connected to the suction port 5. When a panel is attached to the surface of the suction port 5, the suction port 5 can apply a suction force to the panel, which can be used to firmly adsorb the panel to the forming tube 2, preventing the panel from moving or misaligning during the bending and welding processes, thereby improving processing accuracy. When the panel is placed between the forming tube 2 and the work surface and is ready for bending, the suction channel 6 is activated, and the suction port 5 begins to apply a suction force to the panel, firmly adsorbing it to the forming tube 2. As the guide column 3 applies pressure and bends the panel, the suction force ensures that the panel remains in a stable position until the bending is completed and the panel is ready for welding.

[0034] A sealing ring 7 is provided around the adsorption port 5. The outer surface of the sealing ring 7 is flush with the outer surface of the forming cylinder 2. The sealing ring 7 can improve the sealing performance of the adsorption port 5, prevent air from leaking through the gap between the adsorption port 5 and the plate during the air suction process, thereby enhancing the adsorption force and ensuring the stability of the plate during processing. When the air suction channel 6 is activated, the sealing ring 7 closely adheres between the plate and the forming cylinder 2 to form an effective seal and prevent air leakage. As the adsorption force increases, the plate is more firmly adsorbed on the forming cylinder 2, providing reliable support for subsequent bending and welding operations.

[0035] Inside the adsorption port 5, there is a support plate 8. Inside the support plate 8, there are multiple ventilation holes. The ventilation holes can optimize the structure of the air suction channel 6, improve the air suction efficiency, and at the same time ensure that the adsorption force is evenly distributed on the plate, avoiding deformation or damage of the plate caused by insufficient or excessive local adsorption force. Air enters the air suction channel 6 through the ventilation holes and forms a uniform negative pressure area at the adsorption port 5. This negative pressure area exerts a uniform adsorption force on the plate to ensure that the plate maintains a stable position during processing.

[0036] On the support plate 8, there is an empty groove 9. The empty groove 9 is annularly arranged at the connection between the support plate 8 and the sealing ring 7. The empty groove 9 is internally connected to the air suction channel 6. The empty groove 9 can further optimize the structure of the air suction channel 6, improve the air suction efficiency, and reduce the energy consumption during the air suction process.

[0037] Embodiment Three As Figures 1 - 6 shown, on the basis of Embodiment One and Embodiment Two, this embodiment provides an installation and positioning method for the plate, which is specifically as follows: On the surface of the workbench 1, there is a vertical plate 10. The end of the forming cylinder 2 is fixed on the vertical plate 10. Inside the vertical plate 10, there is an arc-shaped slideway 11. The end of the guiding column 3 is vertically inserted into the inside of the arc-shaped slideway 11 and can move along the arc-shaped slideway 11. The vertical plate 10 and the arc-shaped slideway 11 can firmly fix the forming cylinder 2 on the workbench 1 and provide a stable moving track for the guiding column 3. At the same time, the design of the arc-shaped slideway 11 enables the guiding column 3 to move along the arc surface that coincides with the axis of the forming cylinder 2, thereby ensuring that the length of the bent plate is the same as the circumference of the forming cylinder 2. When preparing for the bending operation, fix the end of the forming cylinder 2 on the vertical plate 10 and ensure that the end of the guiding column 3 is vertically inserted into the inside of the arc-shaped slideway 11. Then, start the driving motor to make the guiding column 3 move along the arc-shaped slideway 11 to apply pressure and bend the plate. During the bending process, the arc-shaped slideway 11 ensures that the guiding column 3 moves along the correct track, thereby obtaining a ring-shaped body that meets the requirements.

[0038] One end of each of the two guide posts 3 extending into the inner part of the arc-shaped slideway 11 is fixedly provided with an arc-shaped block 19. An arc-shaped plate 17 is fixed on the arc-shaped block 19. There is a gap between the two arc-shaped plates 17, and a first gear 18 is meshed and connected between the two arc-shaped plates 17. A motor for driving the first gear 18 to rotate is fixedly installed inside the vertical plate 10, which can realize the synchronous movement between the two guide posts 3 and ensure that they maintain the same speed and position during the movement. When starting the driving motor, the motor drives the two arc-shaped plates 17 to rotate synchronously through the first gear 18. Since the arc-shaped plates 17 are meshed and connected, the two guide posts 3 will move synchronously along the arc-shaped slideway 11. During the movement, the arc-shaped block 19 slides in the arc-shaped chute, ensuring that the guide posts 3 move along the correct track and maintain a stable speed and position.

[0039] Two positioning blocks 12 are slidably installed on the surface of the workbench 1. The positioning blocks 12 are symmetrically arranged on both sides of the forming cylinder 2, which can accurately position the plate parts during the processing and prevent them from moving or being misaligned during the bending and welding processes. When preparing for the bending operation, the two positioning blocks 12 are respectively placed on both sides of the forming cylinder 2, and their positions are adjusted to ensure that the plate parts are correctly positioned between the forming cylinder 2 and the working surface. Then, the driving motor is started to make the two toothed plates 13 move synchronously, thereby driving the positioning blocks 12 to clamp and position the plate parts. During the subsequent bending and welding processes, the positioning blocks 12 ensure that the plate parts maintain a stable position.

[0040] The two positioning blocks 12 are respectively fixed on the two toothed plates 13. A second gear 14 is meshed and connected between the two toothed plates 13. A motor for driving the second gear 14 to rotate is provided inside the workbench 1. When starting the driving motor, the motor drives the two toothed plates 13 to rotate synchronously through the second gear 14. Since the toothed plates 13 are meshed and connected, the two positioning blocks 12 will move synchronously along the surface of the workbench 1. During the movement, the positioning blocks 12 clamp and position the plate parts to ensure that the plate parts maintain a stable position during the subsequent bending and welding processes.

[0041] A track 15 arranged along the axis direction of the forming cylinder 2 is fixed on the vertical plate 10. The welding torch 4 is fixed on a slider 16, and the slider 16 is slidably installed on the track 15 to ensure that the welding torch 4 can maintain a stable speed and position when moving along the welding line. When preparing for the welding operation, the welding torch 4 is fixed on a slider 16, and the slider 16 is slidably installed on the track 15. Then, the driving device (such as a cylinder, a motor, etc.) is started to make the slider 16 move along the track 15, thereby driving the welding torch 4 to move along the welding line. During the movement, the welding torch 4 performs a welding operation on the plate parts to connect the two ends of the plate parts together to form a complete annular body.

[0042] Working principle: Place the plate on the working surface of the workbench 1, between the forming cylinder 2 and the working surface.

[0043] Start the motor inside the workbench 1, drive the two toothed plates 13 to rotate synchronously through the second gear 14, drive the positioning block 12 to clamp and position the plate, and ensure that the plate will not move or be misaligned during the processing.

[0044] Start the driving motor. The motor drives the two arc-shaped plates 17 to rotate synchronously through the first gear 18, thereby driving the guide post 3 to move along the arc-shaped slideway 11, apply pressure and bend the plate. The guide post 3 moves along the preset pressure application trajectory, gradually bends the plate into an arc with the same radius as the forming cylinder 2 until the two ends of the plate are connected on the surface of the forming cylinder 2 and form a welding line. There are multiple suction ports 5 on the surface of the forming cylinder 2, and a suction force is generated through the air suction channel 6 to firmly adsorb the plate on the forming cylinder 2.

[0045] The welding torch 4 is fixed on a slider 16, and the slider 16 is slidably installed on the track 15 arranged along the axis direction of the forming cylinder 2 on the vertical plate 10. Start the driving device to make the slider 16 move along the track 15, drive the welding torch 4 to move along the welding line. During the movement of the welding torch 4, perform a welding operation on the plate to connect the two ends of the plate together to form a complete ring.

[0046] 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 equivalently replaced, and any modification or partial replacement without departing from the spirit and scope of the present invention shall be covered by the scope of the claims of the present invention.

Claims

1. A butt welding device for the production of electric vehicle wheels, characterized in that, Comprising: A workbench (1), the surface of the workbench (1) is provided with a working surface for placing the plate. A forming cylinder (2), the forming cylinder (2) is arranged above the workbench (1), and the axis of the forming cylinder (2) is parallel to the working surface. Guide columns (3), the number of the guide columns (3) is two, and the two guide columns (3) respectively form a pressing track on both sides of the forming cylinder (2). There is a gap adapted to the thickness of the plate between the pressing track and the forming cylinder (2). The pressing track forms an arc surface around the forming cylinder (2), and the axis of the arc surface coincides with the axis of the forming cylinder (2). During the movement of the guide column (3) along the pressing track, the plate can be bent and the plate can be attached to the surface of the forming cylinder (2). After bending, both ends of the plate are connected on the surface of the forming cylinder (2) and form a welding line. A welding torch (4), the end of the welding torch (4) can move along the direction of the welding line.

2. The butt welding device for the production of electric vehicle wheels according to claim 1, characterized in that, The surface of the forming cylinder (2) is provided with a plurality of adsorption ports (5), and an air suction channel (6) is arranged inside the forming cylinder (2). The adsorption ports (5) are communicated with the air suction channel (6). When the plate is attached to the surface of the adsorption port (5), the adsorption port (5) can apply an adsorption force to the plate.

3. The butt welding equipment for the production of electric vehicle wheels according to claim 2, characterized in that, A sealing ring (7) is arranged around the adsorption port (5), and the outer surface of the sealing ring (7) is flush with the outer surface of the forming cylinder (2).

4. The butt welding device for the production of electric vehicle wheels according to claim 3, characterized in that, A support plate (8) is arranged inside the adsorption port (5), and a plurality of ventilation holes are arranged inside the support plate (8).

5. The butt welding equipment for the production of electric vehicle wheels according to claim 4, characterized in that, An empty groove (9) is arranged on the support plate (8), and the empty groove (9) is annularly arranged at the connection between the support plate (8) and the sealing ring (7). The empty groove (9) is communicated with the inside of the air suction channel (6).

6. The butt welding equipment for the production of electric vehicle wheels according to claim 1, characterized in that, A vertical plate (10) is arranged on the surface of the workbench (1), and the end of the forming cylinder (2) is fixed on the vertical plate (10). An arc-shaped slideway (11) is arranged inside the vertical plate (10), and the end of the guide column (3) is vertically inserted into the inside of the arc-shaped slideway (11) and can move along the arc-shaped slideway (11).

7. The butt welding device for the production of electric vehicle wheels according to claim 6, characterized in that, Both ends of the two guide columns (3) extending into the inside of the arc-shaped slideway (11) are fixed with arc-shaped blocks (19). An arc-shaped plate (17) is fixed on the arc-shaped block (19). There is a gap between the two arc-shaped plates (17), and a first gear (18) is meshed between the two arc-shaped plates (17). A motor for driving the first gear (18) to rotate is fixed inside the vertical plate (10).

8. A butt welding device for the production of electric vehicle wheels according to claim 1, characterized in that, Two positioning blocks (12) are slidably installed on the surface of the workbench (1), and the positioning blocks (12) are symmetrically arranged on both sides of the forming cylinder (2).

9. The butt welding device for the production of electric vehicle wheels according to claim 8, characterized in that, The two positioning blocks (12) are respectively fixed on two toothed plates (13), and a second gear (14) is meshed between the two toothed plates (13). A motor for driving the second gear (14) to rotate is arranged inside the workbench (1).

10. A butt welding device for the production of electric vehicle wheels according to claim 6, characterized in that, A track (15) arranged along the axis direction of the forming cylinder (2) is fixed on the vertical plate (10). The welding torch (4) is fixed on a slider (16), and the slider (16) is slidably installed on the track (15).

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