A high-frequency straight seam welding machine for acoustic detection pipes

Abstract

The present invention discloses a high-frequency straight seam pipe welding machine for acoustic detection tubes, which relates to the technical field of pipe welding machines. The high-frequency straight seam pipe welding machine for acoustic detection tubes comprises a workbench, a welding machine body is provided on the top of the workbench, a material storage box is fixedly installed on the top of the workbench, a first motor is fixedly installed on one side of the material storage box, the output end of the first motor rotates through the material storage box and extends to the interior of the material storage box, a rotating roller is fixedly installed on the output end of the first motor, the rotating roller is rotatably connected inside the material storage box, a groove is provided on the surface of the rotating roller, the acoustic detection tube to be welded enters the interior of the two grooves, and then the first motor is started, so that the first motor drives the two rotating rollers to rotate, and then the acoustic detection tube rotates with the rotating roller, and then when the two rotating rollers flip one hundred and eighty degrees, the acoustic detection tube will fall down, which is convenient for automatic loading, improves the convenience of loading the acoustic detection tube, and reduces the workload of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of pipe welding machines, in particular to a high-frequency straight seam pipe welding machine for acoustic detection pipes. Background Art

[0002] The sonic detection tube uses sound waves to test the quality of a pile. It serves as the passage for the probe to enter the pile during ultrasonic testing of cast-in-place piles. It is a crucial component of the ultrasonic testing system for cast-in-place piles. Its embedment method within the pile and its layout across the pile's cross-section directly influence the test results. Therefore, the layout and embedment of the sonic detection tube should be included in the design drawings of the pile to be tested. During construction, the embedment quality and tube wall thickness should be strictly controlled to ensure smooth testing.

[0003] When welding the acoustic detection pipe, a high-frequency straight seam pipe welding machine is required. However, some existing straight seam pipe welding machines usually require manual loading when in use, which makes it inconvenient to use and affects the welding speed.

[0004] In view of the above problems, a high-frequency straight seam welding machine for acoustic detection pipes is proposed. Summary of the Invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a high-frequency straight seam pipe welding machine for acoustic testing pipes, which can solve the problems of the background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-frequency straight seam welding machine for acoustic detection tubes, comprising a workbench, a welding machine body is provided on the top of the workbench, a material storage box is fixedly installed on the top of the workbench, a first motor is fixedly installed on one side of the material storage box, the output end of the first motor rotates through the material storage box and extends to the interior of the material storage box, a rotating roller is fixedly installed on the output end of the first motor, the rotating roller is rotatably connected inside the material storage box, a groove is provided on the surface of the rotating roller, a second motor is fixedly installed on one side of the workbench, the output end of the second motor rotates through the workbench and extends to the interior of the workbench, a threaded rod is fixedly installed on the output end of the second motor, a movable seat is threadedly connected on the surface of the threaded rod, a slide groove is provided inside the workbench, a fixed rod is fixedly installed inside the slide groove, and the movable seat slides on the inside of the slide groove and on the surface of the fixed rod.

[0007] Preferably, the interior of the movable seat is slidably connected to two movable racks, and two first limiting rods are fixedly installed inside the movable seat, and surfaces of the two first limiting rods are slidably connected to the interiors of the two movable racks respectively.

[0008] Preferably, tension springs are movably sleeved on the surfaces of the two first limiting rods, the opposite ends of the two tension springs are fixedly connected to the inside of the movable seat, and the opposite ends of the two tension springs are fixedly connected to the two movable frames respectively.

[0009] Preferably, a tooth plate is fixedly installed on the opposite side of the two movable racks, the internal rotation of the movable seat is connected to a gear, the two tooth plates are meshed with the surface of the gear, and the two movable racks are provided with a through slot matching the tooth plate, and the two tooth plates are adapted to the two through slots.

[0010] Preferably, the movable frame close to the second motor side slides through the movable base and extends to the bottom of the movable base, the movable frame away from the second motor side is located inside the movable base, and a blocking block is fixedly installed inside the workbench.

[0011] Preferably, a rotating plate is rotatably connected to one side of each of the two movable racks, a third motor is fixedly mounted on one side of one of the movable racks, and an output end of the third motor rotates through the movable rack and is fixedly connected to one of the rotating plates.

[0012] Preferably, an extrusion slide bar is slidably connected to the interior of the movable seat, and a lifting push plate is fixedly installed on the upper end of the extrusion slide bar, and the lifting push plate is located inside the movable seat.

[0013] Preferably, a slideway is provided inside the movable seat, a lifting block is slidably connected inside the slideway, and the lifting block is fixedly connected to the surface of the extrusion slide rod.

[0014] Preferably, a second limiting rod is fixedly installed inside the slide, the surface of the second limiting rod is slidably connected to the inside of the lifting block, an elastic spring is movably sleeved on the surface of the second limiting rod, the upper end of the elastic spring is fixedly connected to the inner wall of the slide, and the lower end of the elastic spring is fixedly connected to the surface of the lifting block.

[0015] Preferably, the internal rotation of the extrusion slide is connected to a rotating wheel, and a right-angled trapezoidal protrusion is fixedly installed inside the workbench. The shape of the right-angled trapezoidal protrusion is inclined. The right-angled trapezoidal protrusion and the extrusion slide are on the same straight line, the movable frame and the blocking block are on the same straight line, and the extrusion slide and the movable frame are not on the same straight line.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The ultrasonic testing tube high frequency straight seam welding machine puts the two ultrasonic testing tubes to be welded into the two chambers inside the storage box, and the ultrasonic testing tubes to be welded enter the inside of the two grooves, and then starts the first motor, so that the first motor drives the two rotating rollers to rotate, and then the ultrasonic testing tubes rotate with the rotating rollers. When the two rotating rollers turn 180 degrees, the ultrasonic testing tubes will fall down, which is convenient for automatic loading, improves the convenience of loading the ultrasonic testing tubes, and reduces the workload of the staff.

[0018] (2) The high-frequency straight seam welding machine for ultrasonic testing tubes moves the extrusion slide bar and the rotating wheel upward, thereby causing the lifting block to slide on the surface of the slideway and the second limiting rod, thereby squeezing the elastic spring. When the extrusion slide bar moves upward, the lifting push plate will follow the extrusion slide bar to move upward, thereby pushing the ultrasonic testing tube inside the moving seat out of the moving seat, thereby facilitating the pushing of the welded ultrasonic testing tube out of the moving seat, thereby facilitating the taking of the ultrasonic testing tube.

[0019] (3) The high-frequency straight seam welding machine for acoustic detection tubes allows the movable seat to gradually reset. When the movable frame on one side contacts the blocking block, the movable frame will be blocked by the blocking block, making it impossible for the movable frame to move. The movable frame will then slide inside the movable seat and on the first limiting rod, and then drive the other movable frame to move through two tooth plates and a gear, so that the two movable frames move in opposite directions, and then stretch the two tension springs, so that it is convenient for the device to be used next time, and the convenience of later use is improved.

[0020] (4) The high-frequency straight seam welding machine for ultrasonic detection tubes starts the third motor to drive one of the rotating plates to rotate, and then the two ultrasonic detection tubes are squeezed by the two rotating plates, which drives the ultrasonic detection tubes to rotate, making it easier to move them into the area of ​​the welding machine body for welding, and then easier to rotate the ultrasonic detection tubes for welding, thereby improving the convenience of welding the ultrasonic detection tubes, facilitating automatic welding, reducing manual intervention, and realizing straight seam welding, thereby improving the diversification of the welding forms of the device.

[0021] (5) The high-frequency straight seam welding machine for ultrasonic testing tubes makes the movable frame no longer blocked by the blocking block, so that the movable frame on one side is reset by the tension of the tension spring, slides on the inside of the movable seat and the surface of the first limiting rod, and then drives the other movable frame to move through two tooth plates and a gear, so that the two movable frames move relative to each other, and then the two rotating plates clamp the two ultrasonic testing tubes, so as to facilitate the clamping of the ultrasonic testing tubes, prevent the ultrasonic testing tubes from moving during welding, and improve the stability of welding.

[0022] (6) The high-frequency straight seam welding machine for the acoustic detection tube starts the second motor, so that the second motor drives the threaded rod to rotate, thereby causing the movable seat to move inside the workbench and slide on the fixed rod and the slide groove at the same time. Then, through the setting of the fixed rod and the slide groove, it is convenient to limit the movable seat, thereby ensuring the smooth movement of the movable seat, preventing the movable seat from shaking, improving the stability of the movable seat, and facilitating the welding of the acoustic detection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Figure 1 This is a structural schematic diagram of a high-frequency straight seam pipe welding machine for acoustic testing pipes according to the present invention;

[0025] Figure 2 This is a schematic diagram of the interior of the storage box of the present invention;

[0026] Figure 3 Schematic diagram of a right-angled trapezoidal protrusion of the present invention;

[0027] Figure 4 A schematic diagram of a workbench of the present invention;

[0028] Figure 5 For the present invention Figure 4 A in the middle is an enlarged schematic diagram;

[0029] Figure 6 is a side view of the workbench of the present invention;

[0030] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0031] Figure 8 This is a schematic diagram of the interior of the mobile seat of the present invention;

[0032] Figure 9 It is a cross-sectional view of the movable seat of the present invention.

[0033] Figure markings: 1. workbench; 2. fixed rod; 3. slide; 4. welding machine body; 5. storage box; 6. first motor; 7. moving seat; 8. rotating roller; 9. groove; 10. second motor; 11. blocking block; 12. threaded rod; 13. right-angle trapezoidal protrusion; 14. moving frame; 15. third motor; 16. lifting push plate; 17. tension spring; 18. rotating plate; 19. extrusion slide; 20. rotating wheel; 21. tooth plate; 22. gear; 23. first limiting rod; 24. slide; 25. second limiting rod; 26. elastic spring; 27. lifting block. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0036] See also Figure 1-9 The present invention provides a technical solution: a high-frequency straight seam pipe welding machine for acoustic testing pipes, comprising a workbench 1, a welding machine body 4 is provided on the top of the workbench 1, a material storage box 5 is fixedly installed on the top of the workbench 1, a first motor 6 is fixedly installed on one side of the material storage box 5, the output end of the first motor 6 rotates through the material storage box 5 and extends to the interior of the material storage box 5, a rotating roller 8 is fixedly installed on the output end of the first motor 6, the rotating roller 8 is rotatably connected inside the material storage box 5, and a groove 9 is provided on the surface of the rotating roller 8.

[0037] Put the two acoustic detection tubes that need to be welded into the two chambers inside the storage box 5, and the acoustic detection tubes that need to be welded enter the inside of the two grooves 9, and then start the first motor 6, so that the first motor 6 drives the two rotating rollers 8 to rotate, and then the acoustic detection tubes rotate with the rotating rollers 8, and then when the two rotating rollers 8 flip one hundred and eighty degrees, the acoustic detection tubes will fall down, which facilitates automatic loading, improves the convenience of loading the acoustic detection tubes, and reduces the workload of the staff.

[0038] A second motor 10 is fixedly installed on one side of the workbench 1. The output end of the second motor 10 rotates through the workbench 1 and extends to the interior of the workbench 1. A threaded rod 12 is fixedly installed on the output end of the second motor 10. A movable seat 7 is threadedly connected to the surface of the threaded rod 12. A slide groove 3 is opened inside the workbench 1. A fixed rod 2 is fixedly installed inside the slide groove 3. The movable seat 7 slides inside the slide groove 3 and on the surface of the fixed rod 2.

[0039] Start the second motor 10, so that the second motor 10 drives the threaded rod 12 to rotate, thereby causing the movable seat 7 to move inside the workbench 1, and slide on the fixed rod 2 and the slide groove 3 at the same time. Then, through the setting of the fixed rod 2 and the slide groove 3, it is convenient to restrict the movable seat 7, thereby ensuring the smooth movement of the movable seat 7, preventing the movable seat 7 from shaking, improving the stability of the use of the movable seat 7, and facilitating the welding of the acoustic detection tube.

[0040] The interior of the mobile seat 7 is slidably connected to the two mobile frames 14, and the interior of the mobile seat 7 is fixedly installed with two first limiting rods 23. The surfaces of the two first limiting rods 23 are respectively slidably connected to the interior of the two mobile frames 14. Tension springs 17 are movably sleeved on the surfaces of the two first limiting rods 23. The opposite ends of the two tension springs 17 are fixedly connected to the interior of the mobile seat 7. The opposite ends of the two tension springs 17 are respectively fixedly connected to the two mobile frames 14. A toothed plate 21 is fixedly installed on the opposite side of the two mobile frames 14. The interior of the mobile seat 7 is rotatably connected to a gear 22. The two toothed plates 21 are connected to the surface of the gear 22. The surfaces are meshed and connected. Both mobile frames 14 are provided with through slots matching the tooth plates 21. The two tooth plates 21 are adapted to the two through slots. The mobile frame 14 close to the second motor 10 slides through the mobile seat 7 and extends to the bottom of the mobile seat 7. The mobile frame 14 away from the second motor 10 is located inside the mobile seat 7. A blocking block 11 is fixedly installed inside the workbench 1. The two mobile frames 14 are rotatably connected on opposite sides with a rotating plate 18. A third motor 15 is fixedly installed on one side of one of the mobile frames 14. The output end of the third motor 15 rotates through the mobile frame 14 and is fixedly connected to one of the rotating plates 18.

[0041] After the acoustic detection tube is discharged from the storage box 5, it will enter the interior of the movable seat 7 and between the two rotating plates 18, thereby causing the movable seat 7 to move to one side, so that the movable frame 14 is no longer blocked by the blocking block 11, and the movable frame 14 on one side is reset by the tension of the tension spring 17, sliding on the interior of the movable seat 7 and the surface of the first limiting rod 23, and then driving the other movable frame 14 to move through the two tooth plates 21 and a gear 22, so that the two movable frames 14 move relative to each other, and then the two rotating plates 18 clamp the two acoustic detection tubes, thereby facilitating the clamping of the acoustic detection tubes, preventing the acoustic detection tubes from moving during welding, and improving the stability of welding.

[0042] Start the third motor 15 to drive one of the rotating plates 18 to rotate, and then the two acoustic detection tubes are squeezed by the two rotating plates 18, which drives the acoustic detection tubes to rotate, making it easier to move them into the area of ​​the welding machine body 4 for welding, and thus making it easier to rotate the acoustic detection tubes for welding, thereby improving the convenience of welding the acoustic detection tubes, facilitating automatic welding, reducing manual intervention, and realizing straight seam welding, thereby increasing the diversification of welding forms of the device.

[0043] Since the two mobile frames 14 are both provided with through slots, when the two tooth plates 21 move relative to each other, the two tooth plates 21 will pass through the through slots on the two mobile frames 14 respectively, thereby preventing the two tooth plates 21 from being blocked by the two mobile frames 14, thereby preventing the two mobile frames 14 from being able to move relative to each other, thereby facilitating the relative movement of the two mobile frames 14 and allowing the two mobile frames 14 to move a greater distance.

[0044] Start the second motor 10, so that the second motor 10 drives the threaded rod 12 to rotate in the opposite direction, thereby gradually resetting the movable base 7. When the movable frame 14 on one side contacts the blocking block 11, the movable frame 14 is blocked by the blocking block 11, and the movable frame 14 cannot move, and the movable frame 14 slides inside the movable base 7 and on the first limiting rod 23, and then drives the other movable frame 14 to move through the two tooth plates 21 and a gear 22, so that the two movable frames 14 move away from each other, and then stretch the two tension springs 17, so as to facilitate the next use of the device and improve the convenience of later use.

[0045] The interior of the mobile seat 7 is slidably connected to the extrusion slide 19, and the upper end of the extrusion slide 19 is fixedly installed with a lifting push plate 16, which is located inside the mobile seat 7. A slide 24 is provided inside the mobile seat 7, and the interior of the slide 24 is slidably connected to a lifting block 27. The lifting block 27 is fixedly connected to the surface of the extrusion slide 19. A second limiting rod 25 is fixedly installed inside the slide 24, and the surface of the second limiting rod 25 is slidably connected to the interior of the lifting block 27. The surface of the second limiting rod 25 is movably sleeved Elastic spring 26, the upper end of the elastic spring 26 is fixedly connected to the inner wall of the slide 24, the lower end of the elastic spring 26 is fixedly connected to the surface of the lifting block 27, the internal rotation of the extrusion slide 19 is connected to the rotating wheel 20, and the interior of the workbench 1 is fixedly installed with a right-angled trapezoidal protrusion 13. The shape of the right-angled trapezoidal protrusion 13 is inclined. The right-angled trapezoidal protrusion 13 and the extrusion slide 19 are in the same straight line, the moving frame 14 and the blocking block 11 are in the same straight line, and the extrusion slide 19 and the moving frame 14 are not in the same straight line.

[0046] After welding is completed, the second motor 10 will drive the movable seat 7 to continue to move to one side, and then the rotating wheel 20 will contact the right-angled trapezoidal protrusion 13 and slide along the inclined surface of the right-angled trapezoidal protrusion 13, thereby causing the extrusion slide 19 and the rotating wheel 20 to move upward, and then the lifting block 27 will slide on the surface of the slide 24 and the second limiting rod 25, thereby squeezing the elastic spring 26. When the extrusion slide 19 moves upward, the lifting push plate 16 will follow the extrusion slide 19 to move upward, thereby pushing the acoustic detection tube inside the movable seat 7 out of the interior of the movable seat 7, thereby facilitating the pushing of the welded acoustic detection tube out of the interior of the movable seat 7, thereby facilitating the taking of the acoustic detection tube.

[0047] Working principle:

[0048] Put the two acoustic detection tubes that need to be welded into the two chambers inside the storage box 5, and the acoustic detection tubes that need to be welded enter the inside of the two grooves 9, and then start the first motor 6, so that the first motor 6 drives the two rotating rollers 8 to rotate, and then the acoustic detection tubes rotate with the rotating rollers 8. When the two rotating rollers 8 flip one hundred and eighty degrees, the acoustic detection tubes will fall down, which is convenient for automatic loading.

[0049] Start the second motor 10, so that the second motor 10 drives the threaded rod 12 to rotate, thereby causing the movable seat 7 to move inside the workbench 1. After the acoustic detection tube is discharged from the storage box 5, it will enter the interior of the movable seat 7 and between the two rotating plates 18, thereby causing the movable seat 7 to move to one side, so that the movable frame 14 is no longer blocked by the blocking block 11, and the movable frame 14 on one side is reset by the tension of the tension spring 17, sliding on the interior of the movable seat 7 and the surface of the first limiting rod 23, and then driving the other movable frame 14 to move through the two tooth plates 21 and a gear 22, thereby causing the two movable frames 14 to move relative to each other, and causing the two rotating plates 18 to clamp the two acoustic detection tubes.

[0050] Start the third motor 15 to drive one of the rotating plates 18 to rotate, and then the two acoustic detection tubes are squeezed by the two rotating plates 18, which drives the acoustic detection tubes to rotate, making it easier to move them into the area of ​​the welding machine body 4 for welding, and making it easier to rotate the acoustic detection tubes for welding.

[0051] The second motor 10 is started, so that the second motor 10 drives the threaded rod 12 to rotate in the opposite direction, thereby gradually resetting the movable base 7. When the movable frame 14 on one side contacts the blocking block 11, the movable frame 14 is blocked by the blocking block 11, and the movable frame 14 cannot move. The movable frame 14 slides inside the movable base 7 and on the first limiting rod 23, and then drives the other movable frame 14 to move through two tooth plates 21 and a gear 22, thereby causing the two movable frames 14 to move away from each other.

[0052] After welding is completed, the second motor 10 will drive the movable seat 7 to continue to move to one side, and then the rotating wheel 20 will contact the right-angled trapezoidal protrusion 13 and slide along the inclined surface of the right-angled trapezoidal protrusion 13, thereby causing the extrusion slide 19 and the rotating wheel 20 to move upward, and then the lifting block 27 will slide on the surface of the slide 24 and the second limiting rod 25, thereby squeezing the elastic spring 26. When the extrusion slide 19 moves upward, the lifting push plate 16 will follow the extrusion slide 19 to move upward, thereby pushing the acoustic detection tube inside the movable seat 7 out of the movable seat 7, thereby facilitating the pushing of the welded acoustic detection tube out of the movable seat 7.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-frequency straight seam welding machine for ultrasonic testing pipes, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a welding machine body (4), a material storage box (5) is fixedly installed on the top of the workbench (1), a first motor (6) is fixedly installed on one side of the material storage box (5), the output end of the first motor (6) rotates through the material storage box (5) and extends to the inside of the material storage box (5), the output end of the first motor (6) is fixedly installed with a rotating roller (8), the rotating roller (8) is rotatably connected inside the material storage box (5), and a groove (9) is provided on the surface of the rotating roller (8), a second motor (10) is fixedly installed on one side of the workbench (1), the output end of the second motor (10) rotates through the workbench (1) and extends to the inside of the workbench (1), a threaded rod (12) is fixedly installed on the output end of the second motor (10), a movable seat (7) is threadedly connected on the surface of the threaded rod (12), a slide groove (3) is provided inside the workbench (1), a fixed rod (2) is fixedly installed inside the slide groove (3), and the movable seat (7) slides inside the slide groove (3) and on the surface of the fixed rod (2); The interior of the movable seat (7) is slidably connected to two movable frames (14), and two first limiting rods (23) are fixedly installed inside the movable seat (7), and the surfaces of the two first limiting rods (23) are respectively slidably connected to the interiors of the two movable frames (14); Tension springs (17) are movably sleeved on the surfaces of the two first limiting rods (23), opposite ends of the two tension springs (17) are fixedly connected to the interior of the movable seat (7), and opposite ends of the two tension springs (17) are fixedly connected to the two movable frames (14) respectively; A toothed plate (21) is fixedly mounted on opposite sides of the two movable frames (14), a gear (22) is rotatably connected to the interior of the movable seat (7), the two toothed plates (21) are meshed with the surface of the gear (22), and the two movable frames (14) are provided with a through slot matching the toothed plate (21), and the two toothed plates (21) are adapted to the two through slots; The movable frame (14) on the side close to the second motor (10) slides through the movable base (7) and extends to the bottom of the movable base (7), and the movable frame (14) on the side away from the second motor (10) is located inside the movable base (7). A blocking block (11) is fixedly installed inside the workbench (1); the movable frame (14) and the blocking block (11) are on the same straight line.

2. The high-frequency straight seam welding machine for acoustic detection pipes according to claim 1, characterized in that: A rotating plate (18) is rotatably connected to one side of each of the two movable frames (14), a third motor (15) is fixedly mounted on one side of one of the movable frames (14), and an output end of the third motor (15) rotates through the movable frame (14) and is fixedly connected to one of the rotating plates (18).

3. The high-frequency straight seam pipe welding machine for acoustic detection pipes according to claim 2, characterized in that: The interior of the movable seat (7) is slidably connected to an extrusion slide rod (19), and the upper end of the extrusion slide rod (19) is fixedly mounted with a lifting push plate (16), which is located inside the movable seat (7).

4. The high-frequency straight seam pipe welding machine for acoustic detection pipes according to claim 3, characterized in that: A slideway (24) is provided inside the movable seat (7), and a lifting block (27) is slidably connected inside the slideway (24), and the lifting block (27) is fixedly connected to the surface of the extrusion slide rod (19).

5. The high-frequency straight seam welding machine for acoustic detection pipes according to claim 4, characterized in that: A second limiting rod (25) is fixedly installed inside the slideway (24), and the surface of the second limiting rod (25) is slidably connected to the inside of the lifting block (27). An elastic spring (26) is movably sleeved on the surface of the second limiting rod (25), and the upper end of the elastic spring (26) is fixedly connected to the inner wall of the slideway (24), and the lower end of the elastic spring (26) is fixedly connected to the surface of the lifting block (27).

6. The high-frequency straight seam welding machine for acoustic detection pipes according to claim 5, characterized in that: The extrusion slide bar (19) is internally rotatably connected to a rotating wheel (20), and a right-angled trapezoidal protrusion (13) is fixedly installed inside the workbench (1). The right-angled trapezoidal protrusion (13) is shaped in an inclined shape. The right-angled trapezoidal protrusion (13) and the extrusion slide bar (19) are on the same straight line, and the extrusion slide bar (19) and the movable frame (14) are not on the same straight line.

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