A longitudinal seam welder positioning device

Abstract

The present application relates to the technical fields of welding, and discloses a longitudinal seam welding machine positioning device, which solves the problem of poor use effect of the existing longitudinal seam welding machine positioning device, and comprises a positioning support frame, the side of the top end of the positioning support frame is provided with a walking type automatic welding mechanism, the middle position of the bottom end of the positioning support frame is provided with a welding positioning mechanism, the welding positioning mechanism is composed of a first positioning pressing plate, a second positioning pressing plate, a supporting mechanism and a welding seam butt joint driving mechanism, a strip-shaped through groove is formed in the middle position of the top end of the positioning support frame, the first positioning pressing plate and the second positioning pressing plate are respectively connected to the two sides inside the positioning support frame, the supporting mechanism is fixedly connected to the middle position inside the positioning support frame, and the welding seam butt joint driving mechanism is connected to one side of the bottom end of the positioning support frame and located at the bottom of the second positioning pressing plate; the positioning device can position the cylinder, can make the cylinder completely closed, and can improve the welding quality.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically a positioning device for a longitudinal seam welding machine. Background Technology

[0002] The longitudinal seam welding machine is a high-quality and efficient general-purpose automatic welding equipment used for butt welding of longitudinal seams of thin-walled cylinders, conical cylinders, flat plates, or square boxes with one open end.

[0003] When a longitudinal seam welding machine is used for longitudinal seam welding of a cylinder, the cylinder needs to be positioned so that the longitudinal seam of the cylinder is aligned with the welding head. However, in most cases, after the metal is wound into a cylinder, the longitudinal seam opening is large and cannot be completely closed. If the cylinder is welded directly, the welding quality will be affected. Therefore, how to position the cylinder while reducing the longitudinal seam is a problem that needs to be solved. Based on this reason, this application proposes a positioning device for a longitudinal seam welding machine. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a positioning device for a longitudinal seam welding machine, which effectively solves the problem of poor performance of existing longitudinal seam welding machine positioning devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning device for a longitudinal seam welding machine, comprising a positioning support frame, a walking automatic welding mechanism provided on the side of the top of the positioning support frame, and a welding positioning mechanism provided at the middle position of the bottom of the positioning support frame. The welding positioning mechanism consists of a first positioning pressure plate, a second positioning pressure plate, a support mechanism, and a weld butt drive mechanism. A strip-shaped through groove is provided at the middle position of the top of the positioning support frame. The first positioning pressure plate and the second positioning pressure plate are respectively connected to both sides inside the positioning support frame. The support mechanism is fixedly connected to the middle position inside the positioning support frame and located at the bottom of the first positioning pressure plate and the second positioning pressure plate. The weld butt drive mechanism is connected to one side of the bottom of the positioning support frame and located at the bottom of the second positioning pressure plate.

[0006] Preferably, both sides of the positioning support frame are fixedly provided with several limiting guide rods and several telescopic cylinders. The first positioning plate and the second positioning plate are slidably sleeved on the limiting guide rods. The first positioning plate and the second positioning plate are connected to the positioning support frame through telescopic cylinders.

[0007] Preferably, the support mechanism consists of a support roller and an adjustable support assembly. The support roller is fixedly connected to the bottom end of the positioning support frame. A strip groove is provided on one side of the support roller, and the adjustable support assembly is connected inside the strip groove.

[0008] Preferably, the adjustable support assembly consists of a servo motor, a rotating shaft, several connecting plates, and auxiliary pressure rollers. The servo motor is fixedly connected to one end inside the strip groove, the rotating shaft is rotatably connected to the inside of the strip groove and fixedly connected to the output shaft of the servo motor, the connecting plates are fixedly connected to the rotating shaft, and the auxiliary pressure rollers are rotatably connected between the connecting plates.

[0009] Preferably, the weld joint driving mechanism consists of a strip support plate, several electric telescopic rods, a frame support frame, a second servo motor, a drive roller, and an angle adjustment and limiting mechanism. The strip support plate is fixedly connected to one side of the bottom end of the positioning support frame. The electric telescopic rods are rotatably connected to the positioning support frame through a movable connecting shaft. The frame support frame is fixedly connected to one end of the electric telescopic rods. The second servo motor is fixedly connected to one end of the frame support frame. The drive roller is rotatably connected inside the frame support frame and fixedly connected to the output shaft of the second servo motor. The angle adjustment and limiting mechanism is connected between the strip support plate and the electric telescopic rods.

[0010] Preferably, the angle adjustment limiting mechanism consists of an arc-shaped limiting support plate, an L-shaped limiting arm, and a locking knob. The arc-shaped limiting support plate is fixedly connected between the strip support plate and the positioning support frame. The L-shaped limiting arm is fixedly connected to one side of the electric telescopic rod and passes through the arc-shaped limiting support plate. The locking knob is connected to the L-shaped limiting arm. The arc-shaped limiting support plate has an arc-shaped through groove that matches the L-shaped limiting arm and several limiting screw holes that match the locking knob.

[0011] Compared with the prior art, the beneficial effects of the present invention are: (1) In operation, by setting a first positioning pressure plate, a second positioning pressure plate, a limit guide rod and a telescopic cylinder, the two sides of the longitudinal gap of the cylindrical part can be pressed to improve the stability during welding and thus improve the welding quality. By setting a support mechanism composed of support rollers and adjustable support components, the cylindrical part can be supported so that the longitudinal gap of the cylindrical part is located at the top, which facilitates the welding work. (2) By setting up a weld joint drive mechanism consisting of a strip support plate, several electric telescopic rods, a frame support frame, a servo motor, a drive roller and an angle adjustment limit mechanism, it can cooperate with the adjustable support assembly to drive the cylindrical part to deform, so that the longitudinal gap of the cylindrical part is as closed as possible, reducing the gap, thereby further improving the welding quality. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0013] In the attached diagram: Figure 1This is a schematic diagram of the positioning device for the longitudinal seam welding machine of the present invention; Figure 2 This is a cross-sectional view of the positioning device for the longitudinal seam welding machine of the present invention; Figure 3 This is a schematic diagram of the support mechanism structure of the present invention; Figure 4 This is a partial structural diagram of the support mechanism of the present invention; Figure 5 This is a partial structural diagram of the adjustable support component of the present invention; Figure 6 This is a schematic diagram of the weld joint driving mechanism of the present invention; In the diagram: 1. Positioning support frame; 2. Walking automatic welding mechanism; 3. Welding positioning mechanism; 4. First positioning pressure plate; 5. Second positioning pressure plate; 6. Support mechanism; 7. Weld joint drive mechanism; 8. Strip groove; 9. Limiting guide rod; 10. Telescopic cylinder; 11. Support roller; 12. Adjustable support assembly; 13. Strip groove; 14. Servo motor one; 15. Rotating shaft; 16. Connecting plate; 17. Auxiliary pressure roller; 18. Strip support plate; 19. Electric telescopic rod; 20. Frame-type support frame; 21. Servo motor two; 22. Drive roller; 23. Angle adjustment limiting mechanism; 24. Movable connecting shaft; 25. Arc-shaped limiting support plate; 26. L-shaped limiting arm; 27. Locking knob; 28. Arc-shaped groove; 29. ​​Limiting screw hole. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] Depend on Figure 1 and Figure 2 The present invention provides a positioning device for a longitudinal seam welding machine, comprising a positioning support frame 1, a walking automatic welding mechanism 2 disposed on the side of the top of the positioning support frame 1, and a welding positioning mechanism 3 disposed at the middle position of the bottom of the positioning support frame 1. The welding positioning mechanism 3 is composed of a first positioning pressure plate 4, a second positioning pressure plate 5, a support mechanism 6, and a weld seam butt drive mechanism 7. A strip-shaped through groove 8 is opened at the middle position of the top of the positioning support frame 1. The first positioning pressure plate 4 and the second positioning pressure plate 5 are respectively connected to both sides inside the positioning support frame 1. The support mechanism 6 is fixedly connected to the middle position inside the positioning support frame 1 and is located at the bottom of the first positioning pressure plate 4 and the second positioning pressure plate 5. The weld seam butt drive mechanism 7 is connected to one side of the bottom of the positioning support frame 1 and is located at the bottom of the second positioning pressure plate 5. In use, the cylindrical part is fitted onto the support mechanism 6, so that one side of the longitudinal gap of the cylindrical part is aligned with the first positioning plate 4. The first positioning plate 4 presses and limits one side of the longitudinal gap of the cylindrical part. At this time, through the cooperation of the support mechanism 6 and the weld joint drive mechanism 7, the other side of the longitudinal gap of the cylindrical part moves, reducing the gap of the longitudinal gap. Then, the second positioning plate 5 presses and limits the other side of the longitudinal gap of the cylindrical part. At this time, the cylindrical part is in a closed state, and then the walking automatic welding mechanism 2 can perform automatic welding. Depend on Figure 1 and Figure 2 As shown, both sides of the positioning support frame 1 are fixedly provided with several limiting guide rods 9 and several telescopic cylinders 10. The first positioning plate 4 and the second positioning plate 5 are slidably sleeved on the limiting guide rods 9. The first positioning plate 4 and the second positioning plate 5 are connected to the positioning support frame 1 through the telescopic cylinders 10. The telescopic cylinder 10 can drive the first positioning plate 4 and the second positioning plate 5 to rise and fall. The limiting guide rod 9 can limit the first positioning plate 4 and the second positioning plate 5 to improve stability. Depend on Figures 1 to 5 The support mechanism 6 is composed of a support roller 11 and an adjustable support assembly 12. The support roller 11 is fixedly connected to the bottom end of the positioning support frame 1. A strip groove 13 is provided on one side of the support roller 11. The adjustable support assembly 12 is connected to the inside of the strip groove 13. The adjustable support assembly 12 is composed of a servo motor 14, a rotating shaft 15, several connecting plates 16 and an auxiliary pressure roller 17. The servo motor 14 is fixedly connected to one end inside the strip groove 13. The rotating shaft 15 is rotatably connected to the inside of the strip groove 13 and is fixedly connected to the output shaft of the servo motor 14. The connecting plates 16 are fixedly connected to the rotating shaft 15. The auxiliary pressure roller 17 is rotatably connected between the connecting plates 16. The cylindrical part is fitted onto the support roller 11. At this time, the servo motor 14 drives the rotating shaft 15 and the connecting plate 16 to rotate. The connecting plate 16 drives the auxiliary pressure roller 17 to move, so that the auxiliary pressure roller 17 presses against the inner wall of the cylindrical part. Through the cooperation with the weld seam connection drive mechanism 7, the cylindrical part is driven, so that the longitudinal gap of the cylindrical part is reduced. The swing angle of the auxiliary pressure roller 17 can be controlled, so that cylindrical parts of different diameters can be supported and limited. Depend on Figure 1 , Figure 2 and Figure 6The weld joint drive mechanism 7 is composed of a strip support plate 18, several electric telescopic rods 19, a frame support frame 20, a second servo motor 21, a drive roller 22, and an angle adjustment and limiting mechanism 23. The strip support plate 18 is fixedly connected to one side of the bottom end of the positioning support frame 1. The electric telescopic rods 19 are rotatably connected to the positioning support frame 1 via a movable connecting shaft 24. The frame support frame 20 is fixedly connected to one end of the electric telescopic rods 19. The second servo motor 21 is fixedly connected to one end of the frame support frame 20. The drive roller 22 is rotatably connected inside the frame support frame 20 and fixedly connected to the output shaft of the second servo motor 21. The angle adjustment and limiting mechanism 23... The adjustment limit mechanism 23 is connected between the strip support plate 18 and the electric telescopic rod 19. The angle adjustment limit mechanism 23 consists of an arc-shaped limit support plate 25, an L-shaped limit arm 26 and a locking knob 27. The arc-shaped limit support plate 25 is fixedly connected between the strip support plate 18 and the positioning support frame 1. The L-shaped limit arm 26 is fixedly connected to one side of the electric telescopic rod 19 and passes through the arc-shaped limit support plate 25. The locking knob 27 is connected to the L-shaped limit arm 26. The arc-shaped limit support plate 25 has an arc-shaped through groove 28 that matches the L-shaped limit arm 26 and several limit screw holes 29 that match the locking knob 27. After the inner wall of the cylindrical part is pressed by the auxiliary pressure roller 17, the electric telescopic rod 19 is started. The electric telescopic rod 19 drives the frame support frame 20 and the drive roller 22 to move, so that the drive roller 22 is in contact with the outer side of the cylindrical part. Then, the servo motor 21 is started, which drives the drive roller 22 to rotate, thereby moving one side of the longitudinal gap of the cylindrical part and reducing the longitudinal gap. According to the diameter of the cylindrical part and the position of the auxiliary pressure roller 17, the angle of the electric telescopic rod 19 is adjusted in advance so that it corresponds to the position of the auxiliary pressure roller 17 and avoids deviation. During adjustment, the locking knob 27 is loosened, the electric telescopic rod 19 is rotated, and the L-shaped limit arm 26 is moved to the corresponding position. Then, the L-shaped limit arm 26 is locked to the arc-shaped limit support plate 25 by the locking knob 27.

[0016] During operation, the system is equipped with a first positioning plate, a second positioning plate, a limiting guide rod, and a telescopic cylinder to press the two sides of the longitudinal gap of the cylindrical component, improving the stability during welding and thus enhancing the welding quality. A support mechanism consisting of support rollers and adjustable support components supports the cylindrical component, ensuring the longitudinal gap is at the top, facilitating welding. A weld joint drive mechanism consisting of a strip support plate, several electric telescopic rods, a frame support frame, a servo motor, drive rollers, and an angle adjustment limiting mechanism works in conjunction with the adjustable support components to drive the cylindrical component to deform, keeping the longitudinal gap as closed as possible and reducing the gap, further improving welding quality.

Claims

1. A positioning device for a longitudinal seam welding machine, comprising a positioning support frame (1), characterized in that: The positioning support frame (1) is provided with a walking automatic welding mechanism (2) on the side of the top end, and a welding positioning mechanism (3) is provided at the middle position of the bottom end of the positioning support frame (1). The welding positioning mechanism (3) is composed of a first positioning pressure plate (4), a second positioning pressure plate (5), a support mechanism (6) and a weld joint driving mechanism (7). A strip-shaped through groove (8) is opened at the middle position of the top end of the positioning support frame (1). The first positioning pressure plate (4) and the second positioning pressure plate (5) are respectively connected to the two sides inside the positioning support frame (1). The support mechanism (6) is fixedly connected to the middle position inside the positioning support frame (1) and is located at the bottom of the first positioning pressure plate (4) and the second positioning pressure plate (5). The weld joint driving mechanism (7) is connected to one side of the bottom end of the positioning support frame (1) and is located at the bottom of the second positioning pressure plate (5). The support mechanism (6) consists of a support roller (11) and an adjustable support assembly (12). The support roller (11) is fixedly connected to the bottom end of the positioning support frame (1). A strip groove (13) is provided on one side of the support roller (11), and the adjustable support assembly (12) is connected to the inside of the strip groove (13). The adjustable support assembly (12) consists of a servo motor (14), a rotating shaft (15), several connecting plates (16) and an auxiliary pressure roller (17). The servo motor (14) is fixedly connected to one end inside the strip groove (13). The rotating shaft (15) is rotatably connected to the inside of the strip groove (13) and fixedly connected to the output shaft of the servo motor (14). The connecting plates (16) are fixedly connected to the rotating shaft (15). The auxiliary pressure roller (17) is rotatably connected between the connecting plates (16). The weld joint drive mechanism (7) consists of a strip support plate (18), several electric telescopic rods (19), a frame support frame (20), a second servo motor (21), a drive roller (22), and an angle adjustment limit mechanism (23). The strip support plate (18) is fixedly connected to one side of the bottom of the positioning support frame (1). The electric telescopic rods (19) are rotatably connected to the positioning support frame (1) through a movable connecting shaft (24). The frame support frame (20) is fixedly connected to one end of the electric telescopic rods (19). The second servo motor (21) is fixedly connected to one end of the frame support frame (20). The drive roller (22) is rotatably connected to the inside of the frame support frame (20) and fixedly connected to the output shaft of the second servo motor (21). The angle adjustment limit mechanism (23) is connected between the strip support plate (18) and the electric telescopic rods (19). The angle adjustment limit mechanism (23) consists of an arc-shaped limit support plate (25), an L-shaped limit arm (26) and a locking knob (27). The arc-shaped limit support plate (25) is fixedly connected between the strip support plate (18) and the positioning support frame (1). The L-shaped limit arm (26) is fixedly connected to one side of the electric telescopic rod (19) and inserted through the arc-shaped limit support plate (25). The locking knob (27) is connected to the L-shaped limit arm (26). The arc-shaped limit support plate (25) has an arc-shaped through groove (28) that matches the L-shaped limit arm (26) and several limit screw holes (29) that match the locking knob (27).

2. The positioning device for a longitudinal seam welding machine according to claim 1, characterized in that: The positioning support frame (1) has several limiting guide rods (9) and several telescopic cylinders (10) fixedly installed on both sides inside. The first positioning plate (4) and the second positioning plate (5) are slidably sleeved on the limiting guide rods (9). The first positioning plate (4) and the second positioning plate (5) are connected to the positioning support frame (1) through the telescopic cylinders (10).

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