Rapid welding device for automobile part production and machining

Abstract

The invention belongs to the technical field of automobile part welding, and discloses a quick welding device for automobile part production and machining, which comprises a workbench, a crawler belt conveyor is fixedly mounted on one side of the workbench, a bent pipe is placed above the crawler belt conveyor, an inclined table is fixedly mounted on the other side of the workbench, and the inclined table is fixedly mounted on the workbench. And a straight pipe is placed above the inclined table. Through the arrangement of the arc-shaped conveying table, the moving shaft and the pipe fitting aligning device, under the limitation of the arc-shaped conveying table and an arc-shaped notch, the welding surfaces of a bent pipe and a straight pipe are always coaxial, and when a moving disc moves to a limiting screw rod, the moving disc does not move any more; therefore, the distance between the screw rod and the movable disc can be adjusted and controlled by rotating the rocking disc so as to adapt to straight pipes with different lengths, rapid and automatic attaching and aligning of the welding faces of the bent pipe and the straight pipe are achieved, the welding effect is improved, the welding operation process is shortened, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile part welding, and particularly relates to a rapid welding device for automobile part production and processing. Background Technique

[0002] With the development of productivity, automobiles have become an indispensable means of transportation in people's lives. In the process of automobile production and manufacturing, many parts need to be welded. Among them, the exhaust pipe needs to be welded. Usually, the exhaust pipe is composed of multiple straight pipes and bent pipes, which are welded together to form a whole exhaust pipe. During the welding process, it needs to be clamped to ensure that the exhaust pipe does not move during the welding process.

[0003] However, when the existing welding equipment welds two pipe fittings together at present, it usually needs to first clamp and fix the two pipe fittings, then weld them, then remove the welded pipe fittings, and then clamp and fix the two pipe fittings again, cycling in turn. This welding process has low efficiency and cannot process a large number of pipe fittings quickly. Moreover, it is very difficult to ensure that the two pipe fittings are aligned and closely attached on the same horizontal plane during clamping, resulting in poor welding effect. In addition, the pipe fittings to be welded cannot be rotated, so that the pipe fittings cannot be uniformly welded in the circumferential direction at one time. Summary of the Invention

[0004] The purpose of the invention is to provide a rapid welding device for automobile part production and processing to solve the problems put forward in the above background technique.

[0005] In order to achieve the above purpose, the invention provides the following technical scheme: A rapid welding device for automobile part production and processing, including a workbench. One side of the workbench is fixedly installed with a crawler conveyor, and a bent pipe is placed above the crawler conveyor. The other side of the workbench is fixedly installed with an inclined platform, and a straight pipe is placed above the inclined platform. The middle of the workbench is fixedly installed with an arc-shaped conveyor platform. A notch is opened in the middle of the arc-shaped conveyor platform. A moving shaft is clamped inside the notch. The bottom of the arc-shaped conveyor platform is movably sleeved with a rotating shaft. A threaded groove is opened on the surface of the rotating shaft, and the moving shaft is clamped in the threaded groove. One end of the arc-shaped conveyor platform is provided with a motor I fixedly connected to the workbench, and the output end of the motor I is fixedly connected to the rotating shaft. The other end of the arc-shaped conveyor platform is provided with a pipe fitting alignment device. The pipe fitting alignment device includes a fixed platform. The bottom of the fixed platform is fixedly connected to the workbench. An arc-shaped notch consistent with the arc-shaped conveyor platform is opened at the upper end of the fixed platform. A moving disc is clamped at one end of the arc-shaped notch, and a limit disc is fixedly installed at the other end of the arc-shaped notch.

[0006] Preferably, the elbow pipe can be transported into the arc-shaped conveying table by a crawler conveyor, the straight pipe can be transported into the arc-shaped conveying table by an inclined table, the straight pipe is located between the elbow pipe and the moving disc, and the first motor can rotate forward and backward periodically.

[0007] Preferably, a spring is fixedly connected between the moving disc and the limiting disc. The middle of the limiting disc is movably sleeved with a limiting screw through a thread. One end of the limiting screw is fixedly connected with a rocking disc. A pipe fitting clamping device is arranged between the arc-shaped conveying table and the pipe fitting aligning device.

[0008] Preferably, the pipe fitting clamping device includes a clamping ring. Four rotating plates arranged at equal circumferential intervals are movably sleeved inside the clamping ring. Buffer springs are fixedly connected between the rotating plates and the inner side of the clamping ring. Gear ones are fixedly sleeved at both ends of the clamping ring. A pipe fitting transporting device is clamped on the outer side of the clamping ring.

[0009] Preferably, the pipe fitting transporting device includes a central shaft movably sleeved on the workbench. One end of the central shaft is meshed with a second motor through a gear. A transporting disc is fixedly sleeved in the middle of the central shaft. Four transporting plates arranged at equal intervals are fixedly connected to the surface of the transporting disc. The pipe fitting clamping devices are clamped inside all four transporting plates.

[0010] Preferably, four rotating shafts arranged at equal circumferential intervals are movably sleeved on the transporting disc. One end of each of the four rotating shafts is meshed with the pipe fitting clamping device through a gear. Gear twos are fixedly sleeved at the other ends of the four rotating shafts. All four gear twos can be meshed with one end of a transmission shaft. The middle of the transmission shaft is meshed with the second motor through a gear. The other end of the transmission shaft is movably sleeved on the workbench.

[0011] Preferably, a gear three and a gear four are fixedly sleeved at the output end of the second motor. The gear three is meshed with the transmission shaft at a ratio of four to three. The gear four is meshed with the central shaft at a ratio of one to one. The gear three has a quarter notch. The gear four has a three-quarter notch. The gear four is located at the notch of the gear three.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. Through the provision of an arc-shaped conveying table, a moving shaft, and a pipe fitting alignment device, the moving shaft will move within the notch as the rotating shaft rotates. During the movement of the moving shaft, it will first push the bent pipe. Since the straight pipe is between the bent pipe and the moving disc, the bent pipe will touch the straight pipe. Subsequently, the bent pipe and the straight pipe will be pushed together by the moving shaft towards the pipe fitting alignment device. When the straight pipe touches the moving disc in the pipe fitting alignment device, it will push the moving disc and compress the spring. Under the combined extrusion of the spring, the moving disc, and the moving shaft, the welding surfaces of the bent pipe and the straight pipe will be closely attached together. Moreover, under the limitation of the arc-shaped conveying table and the arc-shaped notch, the welding surfaces of the bent pipe and the straight pipe will always be coaxial. In addition, when the moving disc moves to the limit screw, it will no longer move. Therefore, the distance between the screw and the moving disc can be adjusted by rotating the rocking disc to adapt to straight pipes of different lengths. This setting realizes the rapid and automatic close alignment of the welding surfaces of the bent pipe and the straight pipe, improves the welding effect, shortens the welding operation process, and improves the welding efficiency.

[0014] 2. Through the provision of a pipe fitting clamping device and a pipe fitting transportation device, when the straight pipe and the bent pipe move towards the moving disc, they will touch the rotating plate. The rotating plate will rotate towards the inside of the clamping ring, thereby compressing the buffer spring. Under the extrusion of the buffer spring and the rotating plate, the bent pipe and the straight pipe are restricted within the clamping ring. Subsequently, they will perform a circular motion centered on the central axis under the movement of the transportation plate. The clamping ring will hold the pipe fittings to be welded and first move to one side of the transportation disc for laser welding. At this time, the second gear will engage with the transmission shaft and cause the rotating shaft to rotate, thereby causing the clamping ring to rotate, and further causing the pipe fittings within the clamping ring to rotate, enabling the laser to uniformly weld the pipe fittings in the circumferential direction at one time. It has a high welding speed and welding effect. After the welding is completed, it moves to the lower part of the transportation disc to remove the welded pipe fittings, and finally moves to between the arc-shaped conveying table and the pipe fitting alignment device to clamp new pipe fittings, and so on in a cycle to achieve continuous cyclic welding of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is this Figure 1 enlarged schematic diagram at A in;

[0017] Figure 3 is a front view structural schematic diagram of the present invention;

[0018] Figure 4 is a rear view structural schematic diagram of the present invention;

[0019] Figure 5 is a structural schematic diagram of the pipe fitting clamping device of the present invention;

[0020] Figure 6Schematic structural diagram of the pipe fitting transportation device of the present invention;

[0021] Figure 7 Schematic diagram of the meshing between the output end of the second motor and the transmission shaft of the present invention.

[0022] In the figure: 1, workbench; 2, crawler conveyor; 3, elbow pipe; 4, inclined platform; 5, straight pipe; 6, arc-shaped conveying platform; 7, notch; 8, moving shaft; 9, rotating shaft; 10, thread groove; 11, first motor; 12, fixed platform; 13, arc-shaped notch; 14, moving disc; 15, limiting disc; 16, spring; 17, limiting screw; 18, rocking disc; 19, clamping ring; 20, rotating plate; 21, buffer spring; 22, first gear; 23, middle shaft; 24, second motor; 25, conveying disc; 26, conveying plate; 27, rotating shaft; 28, second gear; 29, transmission shaft; 30, third gear; 31, fourth gear. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 7 shown, the embodiment of the present invention provides a rapid welding device for the production and processing of automobile parts, including a workbench 1. A crawler conveyor 2 is fixedly installed on one side of the workbench 1. An elbow pipe 3 is placed above the crawler conveyor 2. An inclined platform 4 is fixedly installed on the other side of the workbench 1. A straight pipe 5 is placed above the inclined platform. A circular arc-shaped conveying platform 6 is fixedly installed in the middle of the workbench. A notch 7 is opened in the middle of the circular arc-shaped conveying platform 6. A moving shaft 8 is clamped inside the notch 7. A rotating shaft 9 is movably sleeved at the bottom of the circular arc-shaped conveying platform 6. A thread groove 10 is opened on the surface of the rotating shaft 9. The moving shaft 8 is clamped in the thread groove 10. One end of the circular arc-shaped conveying platform 6 is provided with a first motor 11 fixedly connected to the workbench 1. The output end of the first motor 11 is fixedly connected to the rotating shaft 9. A pipe fitting alignment device is provided at the other end of the circular arc-shaped conveying platform 6. The pipe fitting alignment device includes a fixed platform 12. The bottom of the fixed platform 12 is fixedly connected to the workbench 1. An arc-shaped notch 13 identical to the circular arc-shaped conveying platform 6 is opened at the upper end of the fixed platform 12. A moving disc 14 is clamped at one end of the arc-shaped notch 13. A limiting disc 15 is fixedly installed at the other end of the arc-shaped notch 13.

[0025] Among them, the bent pipe 3 can be transported into the arc-shaped conveying table 6 by the crawler conveyor 2, and the straight pipe 5 can be transported into the arc-shaped conveying table 6 by the inclined table 4. The straight pipe 5 is located between the bent pipe 3 and the moving disc 14. The first motor 11 can rotate forward and backward periodically. When the bent pipe 3 and the straight pipe 5 fall into the arc-shaped conveying table 6 due to the action of gravity, they will be stuck in the notch 7. At this time, the first motor 11 is started to rotate the rotating shaft 9. Since one end of the moving shaft 8 is clamped in the threaded groove 10 on the rotating shaft 9, the moving shaft 8 will move in the notch 7 as the rotating shaft 9 rotates. During the movement of the moving shaft 8, it will first push the bent pipe 3. Since the straight pipe 5 is between the bent pipe 3 and the moving disc 14, the bent pipe 3 will touch the straight pipe 5. Subsequently, the bent pipe 3 and the straight pipe 5 will be pushed against the moving disc 14 together by the moving shaft 8 while being in close contact with each other.

[0026] Among them, a spring 16 is fixedly connected between the moving disc 14 and the limiting disc 15. The middle part of the limiting disc 15 is movably sleeved with a limiting screw 17 through threads. One end of the limiting screw 17 is fixedly connected with a rocking disc 18. A pipe fitting clamping device is arranged between the arc-shaped conveying table 6 and the pipe fitting alignment device. When the bent pipe 3 and the straight pipe 5 are pushed to the moving disc 14 by the moving shaft 8, the moving disc 14 will be pushed and the spring 16 will be compressed. Under the combined extrusion of the spring 16, the moving disc 14 and the moving shaft 8, the welding surfaces of the bent pipe 3 and the straight pipe 5 will be in close contact with each other. And under the limitation of the arc-shaped conveying table 6 and the arc-shaped notch 13, the welding surfaces of the bent pipe 3 and the straight pipe 5 will always be coaxial. In addition, when the moving disc 14 moves to the limiting screw 17, it will no longer move. Therefore, the distance between the limiting screw 17 and the moving disc 14 can be adjusted by rotating the rocking disc 18 to adapt to straight pipes 5 of different lengths.

[0027] Among them, the pipe fitting clamping device includes a clamping ring 19. Four rotating plates 20 arranged at equal circumferential intervals are movably sleeved on the inner side of the clamping ring 19. Buffer springs 21 are fixedly connected between the rotating plates 20 and the inner side of the clamping ring 19. Gear rings 22 are fixedly sleeved at both ends of the clamping ring 19. A pipe fitting transportation device is clamped on the outer side of the clamping ring 19. When the straight pipe 5 and the bent pipe 3 move towards the moving disc 14, they will touch the rotating plates 20. The rotating plates 20 will rotate towards the inner side of the clamping ring 19, thereby compressing the buffer springs 21. Under the extrusion of the buffer springs 21 and the rotating plates 20, the bent pipe 3 and the straight pipe 5 are restricted within the clamping ring 19.

[0028] Among them, the pipe fitting transportation device includes a central shaft 23 movably sleeved on the workbench 1. One end of the central shaft 23 is meshed with a second motor 24 through a gear. A transportation disc 25 is fixedly sleeved in the middle of the central shaft 23. Four equally spaced transportation plates 26 are fixedly connected to the surface of the transportation disc 25. Pipe fitting clamping devices are clamped inside all four transportation plates 26. After clamping is completed, start the second motor 24. Through the central shaft 23, the transportation disc 25 makes a circular motion. The clamping ring 19 that has clamped the pipe fitting will make a circular motion centered on the central shaft 23 under the movement of the transportation plate 26. The clamping ring 19 will clamp the pipe fitting to be welded and first move it to one side of the transportation disc 25 for laser welding. After welding is completed, move it to the lower part of the transportation disc 25 to remove the welded pipe fitting. Finally, move it to the alignment device between the arc-shaped conveyor table 6 and the pipe fitting to clamp a new pipe fitting. In this way, continuous cyclic welding of the pipe fitting is achieved through circulation.

[0029] Among them, four rotating shafts 27 arranged at equal distances in a circular circumference are movably sleeved on the transportation disc 25. One end of each of the four rotating shafts 27 is meshed with the pipe fitting clamping device through a gear. A second gear 28 is fixedly sleeved at the other end of each of the four rotating shafts 27. All four second gears 28 can be meshed with one end of a transmission shaft 29. The middle of the transmission shaft 29 is meshed with a second motor 24 through a gear. The other end of the transmission shaft 29 is movably sleeved on the workbench 1. When the clamping ring 19 clamps the pipe fitting and moves it to one side of the transportation disc 25 for laser welding, the second gear 28 will be meshed with the transmission shaft 29 and cause the rotating shaft 27 to rotate. Thus, the clamping ring 19 meshed with the other end of the rotating shaft 27 through a first gear 22 rotates, and further causes the pipe fitting inside the clamping ring 19 to rotate, enabling the laser to complete uniform welding in the circumferential direction of the pipe fitting at one time, with a high welding speed and welding effect. When the clamping ring 19 is not in the welding position, the second gear 28 will not be meshed with the transmission shaft 29, thus causing the pipe fitting to stop rotating.

[0030] Among them, a third gear 30 and a fourth gear 31 are fixedly sleeved on the output end of the second motor 24. The third gear 30 and the transmission shaft 29 are meshed at a ratio of four to three. The fourth gear 31 and the central shaft 23 are meshed at a ratio of one to one. The third gear 30 has a quarter notch, and the fourth gear 31 has three quarters of a notch. The fourth gear 31 is located at the notch of the third gear 30. Since the fourth gear 31 has three quarters of a notch and the meshing ratio with the central shaft 23 is one to one, every time the output end of the second motor 24 rotates one circle, the central shaft 23 will rotate a quarter of a circle. Since the third gear 30 has a quarter notch and the meshing ratio with the transmission shaft 29 is four to three, every time the output end of the second motor 24 rotates one circle, the transmission shaft 29 will rotate one circle. In addition, since the fourth gear 31 is located at the notch of the third gear 30, when the second motor is started, the central shaft 23 and the transmission shaft 29 will not rotate simultaneously.

[0031] Working principle:

[0032] First, place the bent pipe 3 and the straight pipe 5 to be welded on the crawler conveyor 2 and the inclined platform 4 respectively. Due to the action of gravity, the bent pipe 3 and the straight pipe 5 will fall onto the arc-shaped conveying platform 6 and get stuck in the notch 7. At this time, start the first motor 11 to rotate the rotating shaft 9. Since one end of the moving shaft 8 is clamped in the threaded groove 10 on the rotating shaft 9, the moving shaft 8 will move in the notch 7 as the rotating shaft 9 rotates. During the movement of the moving shaft 8, it will first push the bent pipe 3. Since the straight pipe 5 is between the bent pipe 3 and the moving disc 14, the bent pipe 3 will touch the straight pipe 5. Subsequently, the bent pipe 3 and the straight pipe 5 will be pushed towards the moving disc 14 by the moving shaft 8 closely together. When the straight pipe 5 and the bent pipe 3 move towards the moving disc 14, they will touch the rotating plate 20, and the rotating plate 20 will rotate towards the inside of the clamping ring 19, thereby squeezing the buffer spring 21. Under the extrusion of the buffer spring 21 and the rotating plate 20, the bent pipe 3 and the straight pipe 5 are restricted within the clamping ring 19. Continuing to move will push the moving disc 14 and squeeze the spring 16. Under the combined extrusion of the spring 16, the moving disc 14 and the moving shaft 8, the welding surfaces of the bent pipe 3 and the straight pipe 5 will be closely attached together. And due to the restriction of the arc-shaped conveying platform 6 and the arc-shaped notch 13, the welding surfaces of the bent pipe 3 and the straight pipe 5 will always be coaxial. In addition, when the moving disc 14 moves to the limit screw 17, it will no longer move. Therefore, the distance between the limit screw 17 and the moving disc 14 can be adjusted by rotating the rocking disc 18 to adapt to straight pipes 5 of different lengths;

[0033] After the welding surfaces of the pipe fittings are closely attached and clamped by the clamping ring 19, the clamping ring 19 will perform a circular motion centered on the central axis 23 under the movement of the transport plate 26. It will first move the pipe fittings to be welded to one side of the transport disc 25 for laser welding. After the welding is completed, it will move to the lower part of the transport disc 25 to remove the welded pipe fittings, and finally move to the alignment device between the arc-shaped conveying platform 6 and the pipe fittings to clamp the new pipe fittings. This cycle is repeated to achieve continuous cyclic welding of the pipe fittings.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid welding device for automobile parts production and processing, comprising a workbench (1), a crawler conveyor (2) is fixedly installed on one side of the workbench (1), a bent pipe (3) is placed above the crawler conveyor (2), and is characterized in that: An inclined platform (4) is fixedly installed on the other side of the workbench (1), a straight tube (5) is placed above the inclined platform, an arc-shaped conveying platform (6) is fixedly installed in the middle of the workbench, a slot (7) is provided in the middle of the arc-shaped conveying platform (6), a moving shaft (8) is clamped inside the slot (7), a rotating shaft (9) is movably sleeved at the bottom of the arc-shaped conveying platform (6), a thread groove (10) is provided on the surface of the rotating shaft (9), the moving shaft (8) is clamped inside the thread groove (10), and one end of the arc-shaped conveying platform (6) is provided with a fixed connection with the workbench (1). A motor (11) is connected to the rotating shaft (9), the output end of the motor (11) is fixedly connected to the rotating shaft (9), the other end of the arc-shaped conveying platform (6) is provided with a pipe alignment device, the pipe alignment device comprises a fixed platform (12), the bottom of the fixed platform (12) is fixedly connected to the working table (1), the upper end of the fixed platform (12) is provided with an arc-shaped notch (13) consistent with the arc-shaped conveying platform (6), one end of the arc-shaped notch (13) is clamped with a movable disc (14), and the other end of the arc-shaped notch (13) is fixedly installed with a limiting disc (15).

2. A rapid welding device for automobile parts production and processing according to claim 1, characterized in that: The curved pipe (3) can be transported to the arc-shaped conveying platform (6) via a crawler conveyor (2), and the straight pipe (5) can be transported to the arc-shaped conveying platform (6) via an inclined platform (4). The straight pipe (5) is located between the curved pipe (3) and the movable disc (14), and the motor 1 (11) can rotate forward and reverse periodically.

3. The rapid welding device for automobile parts production and processing according to claim 2 is characterized in that: A spring (16) is fixedly connected between the movable disc (14) and the limiting disc (15); a limiting screw (17) is movably sleeved on the middle part of the limiting disc (15) through a thread; a rocker (18) is fixedly connected to one end of the limiting screw (17); and a pipe clamping device is provided between the arc-shaped conveying platform (6) and the pipe alignment device.

4. The rapid welding device for automobile parts production and processing according to claim 3 is characterized in that: The pipe clamping device comprises a clamping ring (19), the inner side of which is movably sleeved with four rotating plates (20) arranged equidistantly around the circumference, a buffer spring (21) is fixedly connected between the rotating plates (20) and the inner side of the clamping ring (19), gears 1 (22) are fixedly sleeved at both ends of the clamping ring (19), and a pipe transport device is clamped on the outer side of the clamping ring (19).

5. The rapid welding device for automobile parts production and processing according to claim 4 is characterized in that: The pipe transport device comprises a central shaft (23) movably sleeved with a workbench (1); one end of the central shaft (23) is meshed with a motor 2 (24) via a gear; a transport disc (25) is fixedly sleeved in the middle of the central shaft (23); four equidistantly arranged transport plates (26) are fixedly connected to the surface of the transport disc (25); the pipe clamping device is clamped inside each of the four transport plates (26).

6. The rapid welding device for automobile parts production and processing according to claim 5 is characterized in that: The transport disc (25) is movably sleeved with four rotating shafts (27) arranged equidistantly in a circumferential manner, one end of the four rotating shafts (27) is meshed with the pipe clamping device through gears, the other ends of the four rotating shafts (27) are fixedly sleeved with gear 2 (28), the four gear 2 (28) can be meshed with one end of a transmission shaft (29), the middle part of the transmission shaft (29) is meshed with motor 2 (24) through gears, and the other end of the transmission shaft (29) is movably sleeved with the workbench (1).

7. A rapid welding device for automobile parts production and processing according to claim 6, characterized in that: The output end of the motor 2 (24) is fixedly sleeved with a gear 3 (30) and a gear 4 (31); the gear 3 (30) and the transmission shaft (29) are meshed in a ratio of 4 to 3; the gear 4 (31) and the central shaft (23) are meshed in a ratio of 1 to 1; the gear 3 (30) has a quarter gap, the gear 4 (31) has a three-quarter gap, and the gear 4 (31) is located at the gap of the gear 3 (30).

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