A high frequency welding machine device for pipe production line

Abstract

The utility model relates to high -frequency welding machine technical field especially a kind of high-frequency welding machine device for pipe production line, the sliding block outer wall is uniformly connected with workbench fixedly, the sliding block outer wall is uniformly connected with second electric telescopic link output fixedly.This high-frequency welding machine device for pipe production line, first electric telescopic link output moves and drives square plate to move, to drive vertical rod to move along the first bending plate inner wall, square plate moves and drives first protruding block and second protruding block to move, to realize that first protruding block and second protruding block can carry out center positioning, within certain range, the pipe of different thickness can be fixed, knob rotation drives stud bolt rotation, horizontal plate can limit horizontal plate rotation, horizontal plate is used in conjunction with stud bolt, only can move forward and backward, horizontal plate moves and drives guide roller to move, to realize that the height of pipe can be adjusted, so that pipe can be in good contact with high-frequency welding coil.

Description

Technical Field

[0001] This utility model relates to the field of high-frequency welding machine technology, specifically a high-frequency welding machine device for pipe production lines. Background Technology

[0002] High-frequency welding is a new welding process that uses the skin effect and adjacency effect generated by high-frequency current to join steel plates and other metal materials. The emergence and maturity of high-frequency welding technology is a key process in the production of straight seam welded pipes (ERW).

[0003] For example, an automatic continuous high-frequency welding machine for pipe production lines, with announcement number "CN220636594U," uses parallel first and second guide rollers to support and limit the pipe, improving the pipe's butt joint accuracy and welding quality. During welding, the first and second pipe fixing structures press and fix the pipe to prevent movement, further improving welding precision. After welding, the pipe is ejected through a pipe ejection structure, facilitating continuous welding operations and increasing welding efficiency. However, both the first and second pipe fixing structures use arc-shaped pressure plates with a fixed curvature. When the pipe to be welded is thick or thin, the contact area is small, easily leading to pipe displacement during welding. Furthermore, the distance between the first and second guide rollers cannot be adjusted, making it difficult for pipes of different diameters to make proper contact with the high-frequency welding coil when welding. Utility Model Content

[0004] The purpose of this invention is to solve the problem that both the first and second pipe fixing structures use arc-shaped pressure plates with a fixed curvature. When the pipes to be welded are thick or thin, the contact area is small, which can easily lead to pipe displacement during welding. At the same time, the distance between the first and second guide rollers cannot be adjusted, which can easily lead to the pipes not making good contact with the high-frequency welding coil when welding pipes of different diameters. Therefore, this invention proposes a high-frequency welding machine device for pipe production lines.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a high-frequency welding machine device for a pipe production line, including a workbench and a first guide roller frame. The first guide roller frame is fixedly connected to both sides above the workbench. A second guide roller frame is provided on the outer side of the first guide roller frame. An adjustment mechanism is provided inside the first guide roller frame and the first guide roller frame. A positioning structure is provided above the first guide roller frame. A slider is fixedly connected to the lower side of the second guide roller frame. The outer wall of the slider is fixedly connected to the workbench. The outer wall of the slider is fixedly connected to the output end of a second electric telescopic rod.

[0007] This feature allows for easy adjustment and fixation of the pipe's position via the first and second guide roller frames.

[0008] Preferably, the ends of the second electric telescopic rod are all fixedly connected to the fixed plate, and the outer wall of the fixed plate is fixedly connected to the workbench.

[0009] This feature allows the position of the second guide roller frames on both sides to be adjusted via a second electric telescopic rod.

[0010] Preferably, the adjustment mechanism includes knobs, the outer walls of which are fixedly connected to double-ended studs, the two ends of which are rotatably connected to the first guide roller frame and the second guide roller frame respectively via bearings, a horizontal plate is fixedly connected to both sides of the outer wall of the double-ended studs, the inner walls of which are slidably connected to a horizontal rod, the two ends of which are fixedly connected to the first guide roller frame and the second guide roller frame respectively, and guide rollers are installed on the inner side of the horizontal plate.

[0011] This setup uses multiple guide rollers to support the pipe and facilitates transport.

[0012] Preferably, a first curved plate is fixedly connected above each of the first guide roller frames, and two second curved plates are fixedly connected above each of the second guide roller frames.

[0013] This feature facilitates the fixation of the first electric telescopic pole via the first and second curved plates.

[0014] Preferably, a first electric telescopic rod is fixedly connected to the inner wall of both the first and second curved plates, a pressure plate is fixedly connected to the output end of each of the first electric telescopic rods, a pressure roller is installed inside each of the pressure plates, and the outer wall of each pressure roller is fixedly connected to the output shaft of a servo motor.

[0015] This feature allows the height of the pressure plate to be adjusted via the first electric telescopic rod.

[0016] Preferably, the servo motor is threadedly connected to the pressure plate via bolts, and two vertical rods are fixedly connected to the top of each pressure plate, with the outer walls of the vertical rods slidably connected to the first and second curved plates, respectively.

[0017] This feature uses vertical rods to serve as guides.

[0018] Preferably, the positioning structure includes a square plate, the upper part of which is fixedly connected to the output end of the first electric telescopic rod and the vertical rod, respectively. A first protrusion is fixedly connected to the front side of the square plate, and a second protrusion is fixedly connected to the rear side of the square plate. Rubber pads are fixedly connected to the outer walls of both the first and second protrusions.

[0019] This feature provides protection through the rubber pad.

[0020] Preferably, a high-frequency welding machine is installed at the center of the upper part of the workbench, and a high-frequency welding coil is installed on the front side of the high-frequency welding machine.

[0021] This setting allows for welding of pipes using a high-frequency welding coil.

[0022] The present invention proposes a high-frequency welding machine device for a pipe production line, which has the following advantages: through the cooperation of the first guide roller frame and the positioning structure, the output end of the first electric telescopic rod moves to drive the square plate to move, thereby driving the vertical rod to move along the inner wall of the first curved plate. The movement of the square plate drives the first protrusion and the second protrusion to move, so that the first protrusion and the second protrusion can be centrally positioned, and pipes of different thicknesses can be fixed within a certain range.

[0023] Through the cooperation of the first guide roller frame, the second guide roller frame and the adjustment mechanism, the knob rotation drives the double-headed stud to rotate. The horizontal plate can restrict the rotation of the horizontal plate. The horizontal plate and the double-headed stud are used together and can only move back and forth. The movement of the horizontal plate drives the guide roller to move, so as to adjust the height of the pipe and make good contact between the pipe and the high-frequency welding coil. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 for Figure 1 A partial front sectional view;

[0026] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0027] Figure 4 for Figure 2 A magnified view of part B in the diagram;

[0028] Figure 5 for Figure 1 Partial top sectional view;

[0029] Figure 6 for Figure 2 A partial left view;

[0030] Figure 7 for Figure 2A partial right view.

[0031] In the diagram: 1. Workbench, 2. Adjustment mechanism, 201. Guide roller, 202. Knob, 203. Double-ended stud, 204. Horizontal plate, 205. Horizontal bar, 3. First curved plate, 4. Positioning structure, 401. Square plate, 402. First protrusion, 403. Second protrusion, 404. Rubber pad, 5. High-frequency welding machine, 6. Second curved plate, 7. Vertical bar, 8. First electric telescopic rod, 9. Pressure plate, 10. Pressure roller, 11. Second guide roller frame, 12. Slider, 13. Second electric telescopic rod, 14. Fixed plate, 15. High-frequency welding coil, 16. Servo motor, 17. First guide roller frame. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] See attached document Figure 1-7 In this embodiment, a high-frequency welding machine device for a pipe production line includes a workbench 1 and a first guide roller frame 17. The first guide roller frame 17 is fixedly connected to both sides above the workbench 1. The second guide roller frame 11 is provided on the outer side of the first guide roller frame 17. The first guide roller frame 17 and the second guide roller frame 11 are both provided with an adjustment mechanism 2. The first guide roller frame 17 is provided with a positioning structure 4 above it. The second guide roller frame 17 is fixedly connected to a slider 12 below it. The outer wall of the slider 12 is fixedly connected to the workbench 1. The outer wall of the slider 12 is fixedly connected to the output end of the second electric telescopic rod 13.

[0034] The ends of the second electric telescopic rod 13 are all fixedly connected to the fixed plate 14. The outer wall of the fixed plate 14 is fixedly connected to the workbench 1. The first guide roller frame 17 is fixedly connected to the top of the first bending plate 3. The second guide roller frame 11 is fixedly connected to the top of the second bending plate 6. The inner walls of the first bending plate 3 and the second bending plate 6 are fixedly connected to the first electric telescopic rod 8. The first electric telescopic rod 8 is a multi-stage electric telescopic rod with a self-locking function. The output end of the first electric telescopic rod 8 is fixedly connected to the pressure plate 9. The pressure plate 9 is installed inside the pressure roller 10. The outer wall of the pressure roller 10 is fixedly connected to the output shaft of the servo motor 16.

[0035] The adjustment mechanism 2 includes knobs 202. The outer walls of multiple knobs 202 are fixedly connected to double-ended studs 203. Both ends of the double-ended studs 203 are rotatably connected to the first guide roller frame 17 and the second guide roller frame 11 respectively through bearings. Horizontal plates 204 are fixedly connected to both sides of the outer wall of the double-ended studs 203. The inner walls of the horizontal plates 204 are slidably connected to horizontal rods 205. Both ends of the horizontal rods 205 are fixedly connected to the first guide roller frame 17 and the second guide roller frame 11 respectively. Guide rollers 201 are installed on the inner side of the horizontal plates 204. Rotating the knobs 202 drives the double-ended studs 203 to rotate. The horizontal plates 205 can restrict the rotation of the horizontal plates 204. The horizontal plates 204 and the double-ended studs 205 are used together and can only move back and forth. The movement of the horizontal plates 204 drives the movement of the guide rollers 201.

[0036] The servo motor 16 is threadedly connected to the pressure plate 9 by bolts. Two vertical rods 7 are fixedly connected to the top of the pressure plate 9. The outer walls of the vertical rods 7 are slidably connected to the first bending plate 3 and the second bending plate 6 respectively. A high-frequency welding machine 5 is installed in the middle of the top of the workbench 1. A high-frequency welding coil 15 is installed in front of the high-frequency welding machine 5.

[0037] The positioning structure 4 includes a square plate 401. The upper part of the square plate 401 is fixedly connected to the output end of the first electric telescopic rod 8 and the vertical rod 7, respectively. A first protrusion 402 is fixedly connected to the front side of the square plate 401, and a second protrusion 403 is fixedly connected to the rear side of the square plate 401. Rubber pads 404 are fixedly connected to the outer walls of the first protrusion 402 and the second protrusion 403, which can play a protective role.

[0038] Working principle:

[0039] When using high-frequency welding equipment for pipe production lines:

[0040] The operator first adjusts the position of the second guide roller frames 11 on both sides according to the length of the pipe, and then starts the two second electric telescopic rods 13. The first electric telescopic rod 8 is connected to the PLC controller. After programming and other operations, the controller can be started and stopped simultaneously or started individually. The second electric telescopic rod 13 is a multi-stage electric telescopic rod with self-locking function. The movement of the output end of the second electric telescopic rod 13 drives the slider 12 to move, which in turn drives the second guide roller frames 11 on both sides to move. When the second guide roller frames 11 move to the appropriate position, the second electric telescopic rod 13 is turned off.

[0041] Then, the operator adjusts the position of the guide rollers 201 on both sides according to the diameter of the pipe. The operator rotates multiple knobs 202, which drive the double-headed studs 203 to rotate. The horizontal plate 205 can restrict the rotation of the horizontal plate 204. The horizontal plate 204 and the double-headed studs 205 are used together and can only move back and forth. The movement of the horizontal plate 204 drives the guide rollers 201 to move. When the guide rollers 201 move to the appropriate position, the operator stops rotating the knobs 202. Then, the bolts are passed through the threaded holes on the knobs 202, so that the ends of the bolts abut against the first guide roller frame 17 and the second guide roller frame 12 respectively, which can restrict the rotation of the knobs 202. This allows the height of the pipe to be adjusted so that the pipe can make good contact with the high-frequency welding coil.

[0042] Then, the first electric telescopic rod 8 on the second guide roller frame 11 on both sides is started. The output end of the first electric telescopic rod 8 moves and drives the pressure plate 9 to move. At the same time, it drives the vertical rod 7 to slide along the inner wall of the second curved plate 6. The pressure plate 9 moves and drives the pressure roller 10 to move. When the outer wall of the pressure roller 10 is pressed against the pipe, the servo motor 16 is started. The output shaft of the servo motor 16 rotates and drives the pressure roller 10 to rotate. The rotation of the pressure roller 10 drives the pipe to move along the outer wall of multiple guide rollers 201. When the inner side of the pipe is joined together in the high-frequency welding coil 15, the servo motor 16 is turned off. The servo motor 16 has a self-locking function.

[0043] Then, the first electric telescopic rod 8 on the first guide roller frame 17 is activated. The output end of the first electric telescopic rod 8 moves, driving the square plate 401 to move, thereby driving the vertical rod 7 to move along the inner wall of the first curved plate 3. The movement of the square plate 401 drives the first protrusion 402 and the second protrusion 403 to move. When the outer wall of the rubber pad 404 is in contact with the pipe, the first electric telescopic rod 8 is closed. The rubber pad 404 can play a protective role. The first protrusion 402 and the second protrusion 403 can be centered and can fix pipes of different thicknesses within a certain range.

[0044] Then the operator starts the high-frequency welding machine 5, so that the high-frequency welding coil 15 uses the skin effect and proximity effect to quickly heat the pipe joint to a molten state. The pipe moves at a constant speed under the support of the guide roller 201, and the molten joint is welded under pressure to form a continuous weld.

[0045] After the pipe is welded, the operator moves the first electric telescopic rod 8 on the two first guide roller frames 17 to reset the two square plates 401. Then the operator starts multiple servo motors 16 to move the welded pipe to the right along the outer wall of multiple guide rollers 201. The pipe moves at a constant speed with the support of the guide rollers and finally moves out from the right side. When a pipe is exited, a new pipe to be welded can be placed at the front end. By using the symmetrical pipe support structure on both sides, the parallel operation of welding at one end and feeding at the other end can be realized. The pipe that moves out from the right side can directly enter the subsequent process, forming an automatic sliding production line closed loop.

[0046] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A high-frequency welding machine device for a pipe production line, comprising a workbench (1) and a first guide roller frame (17), both sides above the workbench (1) are fixedly connected with the first guide roller frame (17), characterized in that: The first guide roller frame (17) is provided with a second guide roller frame (11) on its outer side. The first guide roller frame (17) and the second guide roller frame (11) are provided with an adjustment mechanism (2). The first guide roller frame (17) is provided with a positioning structure (4) on its upper side. The second guide roller frame (11) is fixedly connected with a slider (12) on its lower side. The outer wall of the slider (12) is fixedly connected to the worktable (1). The outer wall of the slider (12) is fixedly connected to the output end of the second electric telescopic rod (13).

2. The high-frequency welder device for a pipe production line according to claim 1, characterized in that: The ends of the second electric telescopic rod (13) are all fixedly connected to the fixed plate (14), and the outer wall of the fixed plate (14) is fixedly connected to the workbench (1).

3. The high-frequency welder apparatus for a pipe production line according to claim 1, characterized by: The adjustment mechanism (2) includes knobs (202), the outer walls of which are fixedly connected to double-headed studs (203). The two ends of the double-headed studs (203) are rotatably connected to the first guide roller frame (17) and the second guide roller frame (11) respectively through bearings. A horizontal plate (204) is fixedly connected to both sides of the outer wall of the double-headed studs (203). The inner walls of the horizontal plates (204) are slidably connected to a horizontal rod (205). The two ends of the horizontal rod (205) are fixedly connected to the first guide roller frame (17) and the second guide roller frame (11) respectively. A guide roller (201) is installed on the inner side of the horizontal plate (204).

4. The high-frequency welder apparatus for a pipe production line according to claim 1, characterized by: A first bending plate (3) is fixedly connected above the first guide roller frame (17), and two second bending plates (6) are fixedly connected above the second guide roller frame (11).

5. The high-frequency welder apparatus for a pipe production line according to claim 4, characterized by: The inner walls of the first bending plate (3) and the second bending plate (6) are both fixedly connected to a first electric telescopic rod (8). The output end of the first electric telescopic rod (8) is fixedly connected to a pressure plate (9). The pressure plate (9) is installed with a pressure roller (10) inside. The outer wall of the pressure roller (10) is fixedly connected to the output shaft of the servo motor (16).

6. The high-frequency welder apparatus for a pipe production line according to claim 5, characterized by: The servo motor (16) is threadedly connected to the pressure plate (9) by bolts. Two vertical rods (7) are fixedly connected above the pressure plate (9). The outer walls of the vertical rods (7) are slidably connected to the first bent plate (3) and the second bent plate (6) respectively.

7. The high-frequency welder apparatus for a pipe production line according to claim 1, characterized by: The positioning structure (4) includes a square plate (401), which is fixedly connected to the output end of the first electric telescopic rod (8) and the vertical rod (7) on the top. A first protrusion (402) is fixedly connected to the front side of the square plate (401), and a second protrusion (403) is fixedly connected to the rear side of the square plate (401). Rubber pads (404) are fixedly connected to the outer walls of the first protrusion (402) and the second protrusion (403).

8. The high-frequency welder apparatus for a pipe production line according to claim 1, characterized by: A high-frequency welding machine (5) is installed in the middle of the upper part of the workbench (1), and a high-frequency welding coil (15) is installed on the front side of the high-frequency welding machine (5).

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