Welding device for sounding pipe

Abstract

The utility model relates to the field of sounding pipe welding, in particular to a sounding pipe welding device which comprises a workbench, a speed reducer and a motor are arranged on one side of the workbench, and a transmission mechanism is arranged between the motor and the speed reducer. A first telescopic cylinder is arranged on the other side of the workbench, a fixing base and a rotating cylinder are sequentially arranged on a telescopic rod of the first telescopic cylinder in the direction close to the speed reducer, the rotating cylinder is rotationally arranged on the telescopic rod of the first telescopic cylinder in a sleeving mode, and a positioning column is inserted into the side, away from the fixing base, of the rotating cylinder. The central axis of the positioning column and the central axis of the output shaft of the speed reducer are located on the same axis, a support is arranged on the fixing base, a supporting plate is arranged on the support, and a welding gun is vertically arranged on the side, close to the speed reducer, of the supporting plate. According to the welding device for the sounding pipe, the welding operation of the sounding pipe can be conveniently completed through the welding gun, a straight welded pipe can be easily extruded to a connector, and the welding device is used for overcoming the defects in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of welding of acoustic detection tubes, in particular to a welding device for acoustic detection tubes. Background Art

[0002] An acoustic tube is a device used to measure the propagation velocity of sound waves and is primarily used for ultrasonic testing of pile foundations. During installation and construction, the acoustic tube must first be secured to the steel cage and then sealed with a wooden plug or cap. Next, the steel cage containing the acoustic tube is lowered into the installation well, where concrete is poured. After the concrete cools, the wooden plug or cap at the top of the acoustic tube is removed, forming a channel for ultrasonic testing. By placing a transmitting transducer into the acoustic tube of the bored pile being tested, the transmitting transducer converts the electrical signal from the transmitting system into a pulsed sound wave and radiates it into the pile. The pulsed sound wave propagates through the concrete of the bored pile and reaches the acoustic tube of the next bored pile being tested. There, it is received by a receiving transducer placed in the acoustic tube of the next bored pile being tested. The receiving transducer converts the pulsed sound wave into an electrical signal, which is then amplified by a receiving amplifier. The data acquisition system discretizes these electrical signals and converts them into binary data, which is then fed into a computer. The computer then stores and analyzes this data. Technicians, through observation and interpretation, can then assess the quality of the inspected cast-in-place concrete piles. Therefore, acoustic testing tubes are a crucial component of ultrasonic testing systems for cast-in-place piles. Their embedding method and layout directly impact test results. They are widely used in bridges, buildings, underground engineering, and other fields for structural health monitoring and quality control.

[0003] To ensure a seal between the joint and the straight seam welded pipe, the weld must be smooth and uniform, which requires high welding proficiency and precision. Therefore, specialized welders are usually required for this task. Furthermore, to minimize the weld width, the nozzle of the straight seam welded pipe must be squeezed onto the nozzle of the welded joint, which undoubtedly increases the welder's workload.

[0004] Ultrasonic testing pipes are composed of straight-seam welded pipes and joints. The manufacturing process involves first using deep processing technology to transform steel plates or strips into straight-seam welded pipes. The pipe ends of the joints are then welded to the ends of the straight-seam welded pipes. This allows multiple ultrasonic testing pipes to be assembled together, depending on the depth of the well. After the well concrete is poured, a channel for ultrasonic testing is formed within the well. When welding the joints to the straight-seam welded pipes, since both have round ends, the welding path must be curved. To ensure a seal between the joints and the straight-seam welded pipes, a smooth and uniform weld must be achieved. This requires high proficiency and precision in welding techniques, and typically requires specialized welders. During the welding process of joints and straight seam welded pipes, the welding torch must be rotated around the contact point between the joint and the straight seam welded pipe. This rotation is driven by a rotating mechanism. While this method simplifies the welding operation, welding slag may adhere to the torch during rotation. Therefore, the torch must be cleaned immediately after welding, disrupting the production process and thus affecting processing efficiency. Furthermore, to narrow the weld seam between the joint and the straight seam welded pipe, the nozzle of the straight seam welded pipe must be squeezed onto the nozzle of the weld joint, which undoubtedly increases the welder's workload. Therefore, there is still room for optimization and improvement in the welding of joints and straight seam welded pipes. This would make it easier to use the welding torch to complete the ultrasonic testing tube welding operation and also make it easier to squeeze the straight seam welded pipe onto the joint, thereby facilitating the welding of the joint and straight seam welded pipe. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the utility model provides a welding device for sonic detection pipes which can conveniently complete the welding operation of the sonic detection pipe using a welding gun and easily squeeze the straight seam welded pipe into the joint, thereby overcoming the defects in the prior art.

[0006] The technical solution adopted by the utility model is: a welding device for an acoustic detection tube, comprising a workbench, a reducer and a motor are provided on one side of the workbench, the motor is mounted on the workbench through the reducer, and a transmission mechanism is provided between the motor and the reducer; the transmission mechanism comprises two pulleys and a belt tensioned between the two pulleys, the two pulleys are respectively mounted on the drive shaft of the motor and the input shaft of the reducer, and the output shaft of the reducer faces the other side of the workbench; a first telescopic cylinder is provided on the other side of the workbench, the elongation direction of the first telescopic cylinder is toward the output shaft of the reducer, the telescopic rod of the first telescopic cylinder is sequentially provided with a fixed seat and a rotating drum along the direction close to the reducer, the rotating drum is rotatably sleeved on the telescopic rod of the first telescopic cylinder, and a positioning column is inserted on the side of the rotating drum away from the fixed seat, the central axis of the positioning column and the central axis of the output shaft of the reducer are located on the same axis, a bracket is provided on the fixed seat, a support plate is provided on the bracket, a welding gun is vertically provided on the side of the support plate close to the reducer, and the welding gun is mounted on the telescopic rod of the first telescopic cylinder through the support plate and the fixed seat.

[0007] Preferably, two fixed plates are obliquely arranged between the positioning column and the output shaft of the reducer, the bottom end of the fixed plate is located in the middle of the workbench, the top end of the fixed plate is located on one side of the workbench, a guide plate is obliquely arranged on the outer side of the fixed plate, the top end of the guide plate is installed on the fixed plate, a push plate is obliquely arranged between the two fixed plates, the bottom end of the push plate is located in the middle of the workbench, the top end of the push plate is located on the other side of the workbench, a second telescopic cylinder is obliquely arranged on the outer side of the push plate, the telescopic direction of the second telescopic cylinder is parallel to the fixed plate, the second telescopic cylinder and the guide plate are respectively connected to the workbench.

[0008] Preferably, a connecting plate is provided between the guide plate and the workbench, and the top of the connecting plate is installed on the bottom surface of the guide plate. An adjusting plate is provided between the second telescopic cylinder and the workbench, and the top of the adjusting plate is installed on the second telescopic cylinder. Adjustment grooves are respectively provided in the middle and lower parts of the adjusting plate and the connecting plate. The adjustment grooves are provided on the adjusting plate or the connecting plate along the direction from top to bottom. A screw is installed in the adjusting groove, and one end of the screw is installed on the side wall of the workbench. A nut is threadedly installed on the screw, and the adjusting plate or the connecting plate is clamped on the workbench by the nut.

[0009] Preferably, a third telescopic cylinder is vertically arranged between the fixed plate and the push plate, the bottom end of the third telescopic cylinder is installed on the workbench, a fixed frame is provided on the top of the third telescopic cylinder, two rollers are provided on the top of the fixed frame, the two rollers are respectively rotatably arranged on both sides of the fixed frame, and the tops of the two rollers are located above the fixed frame.

[0010] Preferably, several guide rails are arranged between the fixed seat and the workbench, and the several guide rails are all installed on the top surface of the workbench. The several guide rails are all parallel to the telescopic direction of the first telescopic cylinder. Sliders are respectively provided on the several guide rails, and a slide groove is provided on the slider. The guide rails are movably mounted in the slide groove. The cross-sectional shape of the inner cavity of the slide groove is consistent with the cross-sectional shape of the guide rail. The slider is installed on the bottom surface of the fixed seat.

[0011] Preferably, a support groove is provided on the side of the support plate away from the welding gun, and the support groove is provided on the support plate along the direction from away from the welding gun to close to the welding gun. Two first bolts are installed in the support groove, and two first threaded holes are respectively provided on the bracket. The two first threads are respectively threaded on the two first bolts, and the support plate is clamped on the bracket by the first bolts.

[0012] Preferably, a sleeve hole is vertically opened on one side of the support plate close to the reducer, and the sleeve hole is movably sleeved on the welding gun. A second threaded hole is horizontally opened on one end of the support plate close to the reducer, and the second threaded hole is connected to the sleeve hole. A second bolt is threadedly sleeved on the inner thread of the second threaded hole, and the welding gun is clamped on the support plate by the second bolt.

[0013] Preferably, the bottom end of the motor is mounted on the top surface of the reducer, a support seat is provided between the reducer and the workbench, and limiting grooves are respectively provided on both sides of the support seat, the limiting grooves are parallel to the telescopic direction of the first telescopic cylinder, and L-shaped limiting plates are respectively provided on both sides of the reducer, the vertical plate of the limiting plate is mounted on the motor, and the horizontal plate of the limiting plate is mounted in the limiting groove, the inner cavity shape of the limiting groove is consistent with the shape of the horizontal plate of the limiting plate, and a fourth telescopic cylinder is provided on the side of the reducer away from the positioning column, the telescopic rod of the fourth telescopic cylinder is installed on the reducer, the telescopic direction of the fourth telescopic cylinder is parallel to the telescopic direction of the first telescopic cylinder, and the fourth telescopic cylinder is installed on the workbench.

[0014] Preferably, a third threaded hole is opened on one side of the rotating drum, and the third threaded hole is connected to the inner cavity of the rotating drum. A third bolt is installed in the inner thread of the third threaded hole. The positioning column is clamped on the rotating drum by the third bolt. A circular ring is installed on the positioning column. The circular ring and the positioning column are an integrated structure, and one side of the circular ring is in contact with the rotating drum.

[0015] The utility model has the following beneficial effects: first, the utility model can drive the reducer to operate by the motor, pulley and belt provided, and can drive the rotating drum and the positioning column to move toward the output shaft of the reducer by the first telescopic cylinder provided, and by the joint to be welded being sleeved on the positioning column, and then the straight seam welded pipe to be welded is placed between the output shaft of the reducer and the joint, and by the extension of the first telescopic cylinder, the straight seam welded pipe and the joint are quickly clamped between the positioning column and the output shaft of the reducer, thereby reducing the width of the weld between the joint and the straight seam welded pipe. Moreover, because the rotating drum is rotated and sleeved on the telescopic rod of the first telescopic cylinder, it is convenient to use the output shaft of the reducer to drive the straight seam welded pipe and the joint clamped between the positioning column and the output shaft of the reducer to rotate synchronously, and the welding gun is installed on the telescopic rod of the first telescopic cylinder by the bracket and the support plate provided, so that the welding gun can move with the extension of the first telescopic cylinder, so that the welding gun can be used to weld the contact point of the rotating joint and the straight seam welded pipe, so as to complete the welding operation of the acoustic detection pipe.

[0016] Secondly, the utility model provides a V-shaped support structure composed of a fixed plate and a push plate to facilitate supporting the straight seam welded pipe, thereby facilitating welding the straight seam welded pipe and the joint together. The second telescopic cylinder can push the straight seam welded pipe to move along the fixed plate, so that the straight seam welded pipe falls from the top of the fixed plate onto the guide plate, thereby causing the straight seam welded pipe to roll along the guide plate for removal. Moreover, the utility model provides a screw and a nut to facilitate controlling the position of the adjustment plate or the connecting plate clamped on the workbench, thereby facilitating adjustment of the height of the fixed plate and the push plate, that is, facilitating adjustment of the support position of the fixed plate and the push plate for the straight seam welded pipe, thereby facilitating adjustment of the central axis of the supported straight seam welded pipe and the central axis of the output shaft of the reducer to be aligned, so that the output shaft of the reducer can drive the straight seam welded pipe to rotate. The third telescopic cylinder can drive the fixed frame and the two rollers to move up and down, thereby using the two rollers to provide rolling support for the straight seam welded pipe, thereby improving the stability of the straight seam welded pipe support.

[0017] Thirdly, the present invention supports and limits the fixed seat by providing a guide rail and a slider, and restricts the fixed seat and the rotating drum to move only along the telescopic direction of the first telescopic cylinder, thereby improving the stability of clamping the acoustic detection tube. In addition, the present invention facilitates the clamping of the support plate to the bracket by providing a support groove on the support plate, a first threaded hole and a first bolt on the bracket, thereby facilitating the adjustment of the distance between the welding gun and the bracket to meet the requirements of welding joints of various lengths. By providing a sleeve hole, a second threaded hole and a second bolt on the support plate, the upper and lower fixed positions of the welding gun can be adjusted to facilitate welding joints of various diameters.

[0018] Finally, the present invention controls the movement of the motor and reducer through the support base and limit plate. The fourth telescopic cylinder drives the motor and reducer to move, facilitating adjustment of the distance between the first telescopic cylinder and the reducer. Furthermore, the present invention provides a third threaded hole and a third bolt on the rotating drum to clamp the positioning post to the drum, facilitating assembly and disassembly of the post. The circular ring prevents contact between the joint and the drum, facilitating joint positioning and reducing welding difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the first stereoscopic schematic diagram of the present utility model.

[0020] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0021] Figure 3 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0022] Figure 4 for Figure 1 Enlarged schematic diagram of point C in the middle.

[0023] Figure 5 This is a second stereoscopic schematic diagram of the present invention.

[0024] Figure 6 for Figure 1 Enlarged schematic diagram of point D in the middle.

[0025] Figure 7 This is a schematic diagram of the use of the acoustic detection tube assembled in the utility model. DETAILED DESCRIPTION

[0026] like Figures 1 to 6As shown, a welding device for an acoustic detection tube comprises a workbench 1, a reducer 2 and a motor 3 are provided on one side of the workbench 1, the motor 3 is mounted on the workbench 1 through the reducer 2, and a transmission mechanism is provided between the motor 3 and the reducer 2; the transmission mechanism comprises two pulleys 4 and a belt 5 tensioned between the two pulleys 4, the two pulleys are respectively mounted on the drive shaft of the motor 3 and the input shaft of the reducer 2, and the output shaft of the reducer 2 faces the other side of the workbench 1; a first telescopic cylinder 6 is provided on the other side of the workbench 1, the extension direction of the first telescopic cylinder 6 faces the output shaft of the reducer 2, and the telescopic rod of the first telescopic cylinder 6 is along the axis close to the reducer 2 A fixed seat 7 and a rotating drum 8 are provided in sequence in the direction. The rotating drum 8 is rotatably mounted on the telescopic rod of the first telescopic cylinder 6. A bearing is provided in the rotating drum 8. The outer ring of the bearing is installed in the rotating drum 8. The inner cavity of the bearing is installed on the telescopic rod of the first telescopic cylinder 6. A positioning column 9 is inserted on the side of the rotating drum 8 away from the fixed seat 7. The central axis of the positioning column 9 and the central axis of the output shaft of the reducer 2 are located on the same axis. A bracket 10 is provided on the fixed seat 7, and a support plate 11 is provided on the bracket 10. A welding gun 12 is vertically provided on the side of the support plate 11 close to the reducer 2. The welding gun 12 is mounted on the telescopic rod of the first telescopic cylinder 6 through the support plate 11 and the fixed seat 7. By putting the joint of the acoustic detection tube on the positioning column 9, and then controlling the straight seam welded pipe of the acoustic detection tube to be placed between the joint and the output shaft of the reducer 2, the first telescopic cylinder 6 is extended by operating the welding gun 12 and the positioning column 9 toward the output shaft of the reducer 2, so that the straight seam welded pipe and the joint are clamped between the positioning column 9 and the output shaft of the reducer 2, and then driven by the motor 3 and the pulley 4 and the belt 5, so as to drive the output shaft of the reducer 2 to run, and then drive the joint and the straight seam welded pipe clamped between the positioning column 9 and the output shaft of the reducer 2, the rotating drum 8 and the positioning column 9 to rotate. At the same time, the welding gun 12 is used to weld the contact point of the rotating joint and the straight seam welded pipe to complete the welding operation of the acoustic detection tube.

[0027] In this embodiment, two fixed plates 13 are obliquely arranged between the positioning column 9 and the output shaft of the reducer 2. The bottom end of the fixed plate 13 is located in the middle of the workbench 1, and the top end of the fixed plate 13 is located on one side of the workbench 1. A guide plate 14 is obliquely arranged on the outer side of the fixed plate 13. The top end of the guide plate 14 is installed on the fixed plate 13. The angle between the guide plate 14 and the fixed plate 13 is 50° to 130°, so that the straight seam welded pipe can be discharged along the guide plate 14. A push plate 15 is obliquely arranged between the two fixed plates 13. The bottom end of the push plate 15 is located in the middle of the workbench 1, and the top end of the push plate 15 is located on the other side of the workbench 1. A second telescopic cylinder 16 is obliquely arranged on the outer side of the push plate 15. The second telescopic cylinder The telescopic direction of 16 is parallel to the fixed plate 13. The second telescopic cylinder 16 and the guide plate 14 are respectively connected to the workbench 1. The fixed plate 13 and the push plate 15 form a V-shaped storage support mechanism. The straight seam welded pipe of the acoustic testing tube is placed on the storage support mechanism, so that the bottom sides of the straight seam welded pipe of the acoustic testing tube are respectively in contact with the fixed plate 13 and the push plate 15 to support the straight seam welded pipe, thereby facilitating the welding of the straight seam welded pipe and the joint together; by controlling the second telescopic cylinder 16 to extend, the straight seam welded pipe is pushed to move along the fixed plate 13, so that the straight seam welded pipe falls from the top of the fixed plate 13 onto the guide plate 14, and then the straight seam welded pipe rolls along the guide plate 14 to take out the straight seam welded pipe.

[0028] Specifically, a connecting plate 17 is provided between the guide plate 14 and the workbench 1, and the top of the connecting plate 17 is mounted on the bottom surface of the guide plate 14. An adjusting plate 18 is provided between the second telescopic cylinder 16 and the workbench 1, and the top of the adjusting plate 18 is mounted on the second telescopic cylinder 16. The middle and lower parts of the adjusting plate 18 and the connecting plate 17 are respectively provided with adjusting grooves 19. The adjusting grooves 19 are provided on the adjusting plate 18 or the connecting plate 17 from top to bottom. A screw 20 is provided in the adjusting groove 19, and one end of the screw 20 is mounted on the side wall of the workbench 1, and a thread on the screw 20 It is equipped with a nut 21, the outer diameter of which is not less than the width of the adjusting groove 19. The adjusting plate 18 or the connecting plate 17 is clamped on the workbench 1 by the nut 21. The position of the adjusting plate 18 or the connecting plate 17 clamped on the workbench 1 is controlled to facilitate the adjustment of the height of the fixing plate 13 and the push plate 15, that is, to facilitate the adjustment of the supporting position of the fixing plate 13 and the push plate 15 on the straight seam welded pipe, thereby facilitating the adjustment of the central axis of the supported straight seam welded pipe and the central axis of the output shaft of the reducer 2 to be on the same straight line, so that the output shaft of the reducer 2 can drive the straight seam welded pipe to rotate.

[0029] The two rollers 24 are respectively in contact with the bottom sides of the straight seam welded pipe.

[0030] Please participate again Figure 3 A number of guide rails 25 are arranged between the fixed seat 7 and the workbench 1. The guide rails 25 are all installed on the top surface of the workbench 1. The guide rails 25 are all parallel to the telescopic direction of the first telescopic cylinder 6. Sliders 26 are respectively provided on the guide rails 25. The slides 26 are provided with grooves. The guide rails 25 are movably mounted in the grooves. The cross-sectional shape of the inner cavity of the grooves is consistent with the cross-sectional shape of the guide rails 25. The sliders 26 are installed on the bottom surface of the fixed seat 7, thereby supporting and limiting the fixed seat 7, and limiting the fixed seat 7 and the rotating drum 8 to move only along the telescopic direction of the first telescopic cylinder 6, so as to improve the stability of clamping the acoustic detection tube.

[0031] In this embodiment, a support groove 27 is provided on the side of the support plate 11 away from the welding gun 12. The support groove 27 is provided on the support plate 11 along the direction away from the welding gun 12 to close to the welding gun 12. Two first bolts 28 are installed in the support groove 27. Two first threaded holes are respectively provided on the bracket 10. The two first threads are respectively threaded on the two first bolts 28. The nut diameter of the first bolt 28 is not less than the groove width of the support groove 27. The support plate 11 is clamped on the bracket 10 by the first bolt 28. By controlling the position of the support plate 11 clamped on the bracket 10, the distance between the welding gun 12 and the bracket 10 can be conveniently adjusted, that is, the welding position of the welding gun 12 can be conveniently adjusted according to the length of the joint to meet the welding needs of joints of various lengths.

[0032] Specifically, a sleeve hole is vertically opened on one side of the support plate 11 close to the reducer 2, and the sleeve hole is movably sleeved on the welding gun 12. A second threaded hole is horizontally opened on one end of the support plate 11 close to the reducer 2, and the second threaded hole is connected to the sleeve hole. A second bolt 29 is threadedly sleeved on the second threaded hole. The welding gun 12 is clamped on the support plate 11 by the second bolt 29. By screwing the second bolt 29, the upper and lower fixed positions of the welding gun 12 can be conveniently adjusted to weld joints of various diameters.

[0033] It should be noted that the bottom end of the motor 3 is mounted on the top surface of the reducer 2, and a support base 30 is provided between the reducer 2 and the workbench 1. Limiting grooves 31 are respectively provided on both sides of the support base 30. The limiting grooves 31 are parallel to the telescopic direction of the first telescopic cylinder 6. L-shaped limiting plates 32 are respectively provided on both sides of the reducer 2. The vertical plate of the limiting plate 32 is mounted on the motor 3, and the horizontal plate of the limiting plate 32 is sleeved in the limiting groove 31. The inner cavity shape of the limiting groove 31 is consistent with the shape of the horizontal plate of the limiting plate 32, so that the motor 3 and the reducer 2 can move left and right. A fourth telescopic cylinder 33 is provided on the side of the reducer 2 away from the positioning column 9. The telescopic rod of the fourth telescopic cylinder 33 is mounted on the reducer 2. The telescopic direction of the fourth telescopic cylinder 33 is parallel to the telescopic direction of the first telescopic cylinder 6. The fourth telescopic cylinder 33 is installed on the workbench 1, so that by controlling the extension and contraction of the fourth telescopic cylinder 33, the motor 3 and the reducer 2 can be driven to move, so as to facilitate the adjustment of the distance between the first telescopic cylinder 6 and the reducer 2.

[0034] Please refer again Figure 3 A third threaded hole is provided on one side of the rotating drum 8, and the third threaded hole is connected to the inner cavity of the rotating drum 8. A third bolt 34 is threadedly mounted on the inner thread of the third threaded hole. The positioning column 9 is clamped on the rotating drum 8 by the third bolt 34 to facilitate the loading and unloading of the positioning column 9. A circular ring 35 is mounted on the positioning column 9. The circular ring 35 and the positioning column 9 are an integral structure. One side of the circular ring 35 is in contact with the rotating drum 8. By squeezing the joint on the other side of the circular ring 35, the joint is conveniently positioned, thereby improving the welding efficiency. It should be noted that in order to reduce the wear on the output shaft of the reducer 2, a protective shell with a circular structure is mounted on the output shaft of the reducer 2. The protective shell is installed on the output shaft of the reducer 2, so that the protective shell replaces the output shaft of the reducer 2 in contact with the straight seam welded pipe, thereby reducing the wear on the output shaft of the reducer 2.

[0035] The method of using this product is as follows: Figures 1 to 7As shown, first, before use, inspect this product. Start the motor 3 to drive the pulley 4, belt 5 and reducer 2 to operate, observe whether the output shaft of the reducer 2 rotates, and control the first telescopic cylinder 6, the second telescopic cylinder 16, the third telescopic cylinder 22 and the fourth telescopic cylinder 33 to perform telescopic operations, observe whether the first telescopic cylinder 6, the second telescopic cylinder 16, the third telescopic cylinder 22 and the fourth telescopic cylinder 33 perform telescopic actions normally, then push and pull the positioning column 9 to observe whether the positioning column 9 and the rotating drum 8 rotate. If this product fails, it should be stopped for maintenance.

[0036] Then, after the product is in normal state, take out the joint and put it on the positioning column 9 so that one end of the joint is squeezed on the ring 35. By adjusting the fixed position of the welding gun 12 on the support plate 11 and the fixed position of the support plate 11 on the bracket 10, the welding area of ​​the welding gun 12 is located on the other end of the joint. By tightening the first bolt 28 and the second bolt 29, the fixation of the support plate 11 and the welding gun 12 is completed.

[0037] Then, control the second telescopic cylinder 16 to be in a retracted state, place the straight seam welded pipe between the fixed plate 13 and the push plate 15, and adjust the elongation of the fourth telescopic cylinder 33 to facilitate the clamping of the straight seam welded pipe between the output shaft of the reducer 2 and the joint of the positioning column 9; then, adjust the height of the fixed plate 13 and the push plate 15 through the fixed height of the connecting plate 17 and the adjusting plate 18, so that the central axis of the straight seam welded pipe supported by the fixed plate 13 and the push plate 15 and the central axis of the output shaft of the reducer 2 are on the same straight line, and adjust the elongation of the third telescopic cylinder 22 so that the two rollers 22 are in contact with the bottom sides of the straight seam welded pipe to ensure the supporting effect of the straight seam welded pipe.

[0038] Finally, the first telescopic cylinder 6 is operated to extend so that the straight seam welded pipe and the joint are clamped between the positioning column 9 and the output shaft of the reducer 2. The motor 3 is driven and the pulley 4 and the belt 5 are transmitted, thereby driving the output shaft of the reducer 2 to run, and then driving the straight seam welded pipe and the joint clamped between the positioning column 9 and the output shaft of the reducer 2, the rotating drum 8 and the positioning column 9 to rotate. At the same time, the welding gun 12 is used to weld the contact point of the rotating joint and the straight seam welded pipe to complete the welding operation of the acoustic testing tube.

[0039] After the welding operation is completed, the first telescopic cylinder 6 is first controlled to be retracted so that the positioning column 9 passes out of the joint, and then the second telescopic cylinder 16 is operated to extend, pushing the straight seam welded pipe to move along the fixed plate 13, so that the straight seam welded pipe falls from the top of the fixed plate 13 onto the guide plate 14, and then the straight seam welded pipe rolls along the guide plate 14 to facilitate the removal of the straight seam welded pipe.

[0040] In addition, it should be noted that if the same specification of acoustic testing tubes are produced in batches, since the size and dimensions of the straight seam welded pipes and joints remain consistent, the welding area of ​​the welding gun 12 and the fixed heights of the fixed plate 13 and the push plate 15 do not need to be adjusted again. By controlling the second telescopic cylinder 16 to reset and retract, the joint to be welded is again put on the positioning column 9, and the straight seam welded pipe is placed on the fixed plate 13 and the push plate 15, and the above welding operation is repeated, the requirements for batch production of acoustic testing tubes of the same specification can be met.

[0041] According to this embodiment, the motor 3, pulley 4 and belt 5 are provided to drive the reducer 2 to operate, and the first telescopic cylinder 6 is provided to drive the rotating drum 8 and the positioning column 9 to move toward the output shaft of the reducer 2. By fitting the joint to be welded on the positioning column 9, and then placing the straight seam welded pipe to be welded between the output shaft of the reducer 2 and the joint, the first telescopic cylinder 6 is extended to quickly clamp the straight seam welded pipe and the joint between the positioning column 9 and the output shaft of the reducer 2, thereby reducing the width of the weld between the joint and the straight seam welded pipe. Moreover, since the rotating drum 8 is rotated and fitted on the telescopic rod of the first telescopic cylinder 6, it is convenient to use the output shaft of the reducer 2 to drive the straight seam welded pipe and the joint clamped between the positioning column 9 and the output shaft of the reducer 2 to rotate synchronously. The welding gun 12 is installed on the telescopic rod of the first telescopic cylinder 6 by the bracket 10 and the support plate 11, so that the welding gun 12 can move with the extension of the first telescopic cylinder 6, so as to facilitate the use of the welding gun 12 to weld the contact between the rotating joint and the straight seam welded pipe, thereby completing the welding operation of the acoustic detection pipe.

[0042] The embodiments described above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A welding device for an acoustic detection tube, comprising a workbench (1), characterized in that: A reducer (2) and a motor (3) are provided on one side of the workbench (1); the motor (3) is mounted on the workbench (1) via the reducer (2); and a transmission mechanism is provided between the motor (3) and the reducer (2); The transmission mechanism comprises two pulleys (4) and a belt (5) tensioned between the two pulleys (4), the two pulleys (4) being respectively mounted on the drive shaft of the motor (3) and the input shaft of the reducer (2), and the output shaft of the reducer (2) is directed toward the other side of the workbench (1); A first telescopic cylinder (6) is provided on the other side of the workbench (1), and the extension direction of the first telescopic cylinder (6) is toward the output shaft of the reducer (2). The telescopic rod of the first telescopic cylinder (6) is sequentially provided with a fixed seat (7) and a rotating drum (8) along the direction close to the reducer (2). The rotating drum (8) is rotatably sleeved on the telescopic rod of the first telescopic cylinder (6). A positioning column (9) is inserted on the side of the rotating drum (8) away from the fixed seat (7). The central axis of the positioning column (9) and the central axis of the output shaft of the reducer (2) are located on the same axis. A bracket (10) is provided on the fixed seat (7), and a support plate (11) is provided on the bracket (10). A welding gun (12) is vertically provided on the side of the support plate (11) close to the reducer (2). The welding gun (12) is installed on the telescopic rod of the first telescopic cylinder (6) through the support plate (11) and the fixed seat (7).

2. The welding device for an acoustic detection tube according to claim 1, characterized in that: Two fixed plates (13) are obliquely arranged between the positioning column (9) and the output shaft of the reducer (2), the bottom end of the fixed plate (13) is located in the middle of the workbench (1), the top end of the fixed plate (13) is located on one side of the workbench (1), and a guide plate (14) is obliquely arranged on the outer side of the fixed plate (13), and the top end of the guide plate (14) is installed on the fixed plate (13). A push plate (15) is obliquely arranged between the two fixed plates (13), the bottom end of the push plate (15) is located in the middle of the workbench (1), and the top end of the push plate (15) is located on the other side of the workbench (1), and a second telescopic cylinder (16) is obliquely arranged on the outer side of the push plate (15), the telescopic direction of the second telescopic cylinder (16) is parallel to the fixed plate (13), and the second telescopic cylinder (16) and the guide plate (14) are respectively connected to the workbench (1).

3. The welding device for an acoustic detection tube according to claim 2, characterized in that: A connecting plate (17) is provided between the guide plate (14) and the workbench (1), and the top of the connecting plate (17) is mounted on the bottom surface of the guide plate (14). An adjusting plate (18) is provided between the second telescopic cylinder (16) and the workbench (1), and the top of the adjusting plate (18) is mounted on the second telescopic cylinder (16). An adjusting groove (19) is respectively provided in the middle and lower parts of the adjusting plate (18) and the connecting plate (17). The adjusting groove (19) is provided on the adjusting plate (18) or the connecting plate (17) in a direction from top to bottom. A screw (20) is fitted in the adjusting groove (19), and one end of the screw (20) is mounted on the side wall of the workbench (1). A nut (21) is threadedly fitted on the screw (20), and the adjusting plate (18) or the connecting plate (17) is clamped on the workbench (1) through the nut (21).

4. The welding device for an acoustic detection tube according to claim 2, characterized in that: A third telescopic cylinder (22) is vertically arranged between the fixed plate (13) and the push plate (15), the bottom end of the third telescopic cylinder (22) is mounted on the workbench (1), a fixed frame (23) is arranged on the top of the third telescopic cylinder (22), and two rollers (24) are arranged on the top of the fixed frame (23), and the two rollers (24) are rotatably arranged on both sides of the fixed frame (23), and the tops of the two rollers (24) are located above the fixed frame (23).

5. The welding device for an acoustic detection tube according to claim 1, characterized in that: A plurality of guide rails (25) are provided between the fixed seat (7) and the workbench (1), and the plurality of guide rails (25) are all mounted on the top surface of the workbench (1). The plurality of guide rails (25) are all parallel to the telescopic direction of the first telescopic cylinder (6). Sliders (26) are respectively provided on the plurality of guide rails (25), and a slide groove is provided on the slide groove. The guide rail (25) is movably sleeved in the slide groove. The cross-sectional shape of the inner cavity of the slide groove is consistent with the cross-sectional shape of the guide rail (25). The slide rail (26) is mounted on the bottom surface of the fixed seat (7).

6. The welding device for an acoustic detection tube according to claim 1, characterized in that: A support groove (27) is provided on a side of the support plate (11) away from the welding gun (12), and the support groove (27) is provided on the support plate (11) along a direction from away from the welding gun (12) to close to the welding gun (12). Two first bolts (28) are sleeved in the support groove (27), and two first threaded holes are respectively provided on the bracket (10). The two first threads are respectively screwed onto the two first bolts (28), and the support plate (11) is clamped on the bracket (10) through the first bolts (28).

7. The welding device for an acoustic detection tube according to claim 1, characterized in that: A sleeve hole is vertically opened on one side of the support plate (11) close to the reducer (2), and the sleeve hole is movably sleeved on the welding gun (12). A second threaded hole is horizontally opened on one end of the support plate (11) close to the reducer (2), and the second threaded hole is connected to the sleeve hole. A second bolt (29) is sleeved on the inner thread of the second threaded hole, and the welding gun (12) is clamped on the support plate (11) by the second bolt (29).

8. The welding device for an acoustic detection tube according to claim 1, characterized in that: The bottom end of the motor (3) is mounted on the top surface of the reducer (2), a support base (30) is provided between the reducer (2) and the workbench (1), and limiting grooves (31) are respectively provided on both sides of the support base (30), and the limiting grooves (31) are parallel to the telescopic direction of the first telescopic cylinder (6). L-shaped limiting plates (32) are respectively provided on both sides of the reducer (2), and the vertical plates of the limiting plates (32) are mounted on the motor (3), and the horizontal plates of the limiting plates (32) are sleeved in the limiting grooves (31). The inner cavity shape of the limiting grooves (31) is consistent with the shape of the horizontal plates of the limiting plates (32). A fourth telescopic cylinder (33) is provided on the side of the reducer (2) away from the positioning column (9), and the telescopic rod of the fourth telescopic cylinder (33) is mounted on the reducer (2). The telescopic direction of the fourth telescopic cylinder (33) is parallel to the telescopic direction of the first telescopic cylinder (6), and the fourth telescopic cylinder (33) is mounted on the workbench (1).

9. The welding device for an acoustic detection tube according to claim 1, characterized in that: A third threaded hole is provided on one side of the rotating drum (8), the third threaded hole is communicated with the inner cavity of the rotating drum (8), a third bolt (34) is sleeved on the inner thread of the third threaded hole, the positioning column (9) is clamped on the rotating drum (8) by the third bolt (34), a circular ring (35) is sleeved on the positioning column (9), the circular ring (35) and the positioning column (9) are an integral structure, and one side of the circular ring (35) is in contact with the rotating drum (8).

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