Cutting device for sounding pipe

Abstract

The utility model relates to the technical field of sounding pipe cutting, in particular to a sounding pipe cutting device which comprises a workbench, a machine frame is arranged on one side of the workbench, and a driving mechanism and a cutting mechanism are arranged on the machine frame. The driving mechanism comprises a stepping motor arranged on the rack, a first threaded rod and a second threaded rod which are sequentially arranged on one side of the stepping motor, a fixing rod arranged below the first threaded rod in parallel, and two supports arranged on the side, close to the workbench, of the first threaded rod. Driving pipes are arranged on the two racks respectively, fixing pipes are arranged below the driving pipes, the two fixing pipes and the two driving pipes are arranged, a first threaded rod and a second threaded rod are sleeved with the two driving pipes in a threaded mode respectively, the spiral direction of the first threaded rod is opposite to that of the second threaded rod, and the two ends of the fixing pipes are installed on the racks respectively. According to the cutting device of the sounding pipe, heat of the saw blade can be dissipated conveniently, and impact caused by steering is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sonic detection tube cutting, in particular to a sonic detection tube cutting device. Background Art

[0002] Acoustic testing tubes are pipes specifically designed for inspecting the internal quality of concrete and are widely used in the construction industry. These pipes are typically pre-embedded in concrete structures. After the concrete has hardened, acoustic testing is used to assess the concrete's internal quality. The primary function of the acoustic testing tube is to provide an effective channel for acoustic testing, allowing sound waves to propagate freely within the concrete. By leveraging the differences in sound wave propagation speeds in different media, the distances between objects within the concrete can be accurately measured. Specifically, acoustic testing tubes are used by transmitting an ultrasonic wave signal into the tube embedded in the concrete using an ultrasonic detector. The reflected signal is then received and analyzed. By analyzing key parameters such as the sound wave's propagation time, amplitude, and frequency, detailed information such as the location, size, and shape of defects within the concrete can be inferred. This information is crucial for assessing the safety and reliability of concrete structures. Furthermore, acoustic testing tubes can be combined with other advanced inspection technologies, such as radar and infrared thermal imaging, to achieve more comprehensive and accurate concrete structure inspections. Radar detection uses electromagnetic waves to detect defects such as cavities and cracks within the concrete, while infrared thermal imaging uses temperature differences to identify abnormal areas within the concrete. Combining these technologies with acoustic pipe testing can greatly improve the accuracy and reliability of detection.

[0003] The production process for acoustic detection tubes primarily relies on steel plates as raw material. Through processes such as forming, straightening, welding, and cutting, the finished product is finally manufactured. This process requires the use of various production equipment, including forming, straightening, welding, and cutting devices. First, the forming device bends and extrudes the steel plates into a tube blank with a specific shape. Next, the straightening device finely trims and straightens the formed tube blank to ensure the required welding precision. The welding device then welds the joints of the tube blank to ensure structural integrity and strength. Finally, the cutting device precisely cuts the tube blank into the required length of acoustic detection tube.

[0004] To ensure smooth and continuous production of ultrasonic testing tubes, pushers are installed between the various processes. These devices continuously transport the steel plates and pre-formed ultrasonic testing tubes. As the tubes move, the cutting equipment must complete its cutting operations, so it must be able to follow the movement of the tubes. To achieve this, the cutting equipment is equipped with a reciprocating mechanism. This mechanism drives the cutting device along the tube when needed. After the cut is completed, the reciprocating mechanism drives the cutting device in the opposite direction of the tube's movement, resetting the cutting device for the next round of cutting of the continuously transported ultrasonic testing tubes. However, during the continuous production of ultrasonic testing tubes, the saw blade generates a significant amount of heat during the cutting process. Using a single saw blade to continuously cut the ultrasonic testing tubes in this process would make it difficult to dissipate the heat in a timely manner, resulting in a continuous increase in the blade temperature. This not only affects the blade's service life but also may reduce the cutting quality. Furthermore, with the continuous advancement of ultrasonic testing tube production technology, production efficiency has been significantly improved, which has led to a continuous increase in the speed of ultrasonic testing tube transportation during the production process. However, for reciprocating mechanisms, rapid turning and pushing the cutting device generates significant impact force, which can damage not only the cutting device but also the entire equipment, thereby affecting production efficiency and equipment stability. Therefore, there is room for improvement in the sonic tube cutting process to better dissipate heat from the saw blade and reduce the impact of turning, thereby better meeting the needs of sonic tube cutting. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the utility model provides a cutting device for an acoustic detection tube that is convenient for dissipating heat from a saw blade and reducing impact caused by turning, thereby overcoming the defects in the prior art.

[0006] The technical solution adopted by the utility model is as follows: a cutting device for an acoustic detection tube, comprising a workbench, a frame is provided on one side of the workbench, and a driving mechanism and a cutting mechanism are respectively provided on the frame; the driving mechanism comprises a stepping motor provided on the frame, a first threaded rod and a second threaded rod sequentially provided on one side of the stepping motor, a fixed rod provided parallel to and below the first threaded rod, two brackets provided on a side of the first threaded rod close to the workbench, a driving tube provided on each of the two frames, and a fixed tube provided below the driving tube, the number of each of the fixed tubes and the driving tubes being two, the two fixed tubes being movably sleeved on the fixed rod, the two driving tubes being respectively threadedly sleeved on the first threaded rod and the second threaded rod, one end of the first threaded rod away from the stepping motor being connected to one end of the second threaded rod, the other end of the second threaded rod being rotatably mounted on the frame via a bearing, the first threaded rod and the second threaded rod having opposite spiral directions, and the two ends of the fixed rod being respectively mounted on the frame; the cutting device comprises a telescopic cylinder provided on each of the two brackets, a first motor provided on the telescopic end of the telescopic cylinder, and a saw blade provided on the driving end of the first motor, the telescopic direction of the telescopic cylinder being perpendicular to the central axis of the first threaded rod.

[0007] Preferably, a support plate and a support seat are provided between the telescopic cylinder and the bracket, the support seat is installed on the bracket, one side of the support plate is installed on the side of the support seat, and the telescopic cylinder is installed on the other side of the support plate, and sleeve holes are provided on the support seat and the support plate, and the sleeve holes provided on the support seat are connected to the sleeve holes provided on the support plate, and a support rod is movably sleeved in the sleeve hole, the central axis of the support rod is parallel to the telescopic direction of the telescopic cylinder, and one end of the support rod is connected to the first motor.

[0008] Preferably, L-shaped fixing plates are respectively provided on both sides of the support plate, the bottom of the fixing plate is installed on the support plate, the top of the support plate is located above the workbench, and a support tube and a flange are provided on the top of the fixing plate. The flange is fixedly sleeved on one end of the support tube, and the flange is installed on the outside of the fixing plate by screws. A through hole is opened on the top of the fixing plate, and the through hole is connected to the inner cavity of the support tube.

[0009] Preferably, a fixed seat and a hinged plate are provided between the first motor and the telescopic cylinder, the telescopic end of the telescopic cylinder and one end of the support rod are both installed on the fixed seat, one end of the hinged plate is hinged on the fixed seat, and the other end of the hinged plate is installed on the first motor, and a fixing mechanism is provided between the hinged plate and the fixed seat; the fixing mechanism includes a first fixed block hinged on the hinged plate, a second fixed block hinged on the fixed seat, and a column arranged between the first fixed block and the second fixed block, a through hole and a threaded hole are respectively provided on the first fixed block and the second fixed block, one side of the threaded hole is communicated with the through hole, the sleeve is movably sleeved on the column, a bolt is threadedly sleeved in the threaded hole, one end of the bolt is in contact with the column, and the first fixed block or the second fixed block is fixed to the column by bolt clamping.

[0010] Preferably, both ends of the support tube are provided with guide grooves, the guide grooves are provided on the inner wall of the support tube, and the groove diameter of the guide grooves gradually decreases from the end portion to the middle portion of the support tube.

[0011] Preferably, a first roller seat and a second roller seat are respectively provided on both sides of the frame, and the first roller seat and the second roller seat are both installed on the workbench. Two first roller shafts are rotatably provided on the first roller seat, and the two first roller shafts are parallel to the telescopic direction of the telescopic cylinder. Two second roller shafts are rotatably provided on the second roller seat, and the two second roller shafts are vertically arranged on both sides of the second roller seat.

[0012] Preferably, the number of the fixing rods is not less than two, and several fixing rods are respectively arranged on both sides of the bracket, and both ends of the several fixing rods are respectively provided with fixing sleeves, and both ends of the fixing sleeves are respectively installed on the fixing rods and the frame.

[0013] The beneficial effects of the present invention are as follows: first, the present invention can drive the first motor and the saw blade to move by means of the telescopic cylinder, thereby controlling the saw blade to cut the ultrasonic detection tube transported on the workbench. Moreover, the present invention can control the operation of the stepping motor by means of the first threaded rod and the second threaded rod with opposite spiral directions, so that the movement rate of the two brackets and the conveying rate of the ultrasonic detection tube are consistent, and drive the two brackets to move in opposite directions, so that the first motor and the saw blade assembled on one of the brackets can be used to cut the ultrasonic detection tube, while at the same time, the other bracket drives the first motor and the saw blade to reset, so that the two saw blades can be used to cut the continuously conveyed ultrasonic detection tube in turn, so that there is more time to dissipate the heat generated by the saw blade and provide more time for the turning of the cutting device, thereby avoiding rapid turning of the cutting device to reduce the generation of impact force.

[0014] Secondly, the present invention assembles the telescopic cylinder onto the bracket by providing a support plate and a support seat, and supports and constrains the first motor by providing a support rod, so that the first motor can only move along the telescopic direction of the telescopic cylinder, thereby improving the stability of the telescopic cylinder. Moreover, the present invention connects the first motor to the telescopic end of the support rod and the telescopic cylinder by providing a fixed seat and a hinged plate, and the first motor and the saw blade can rotate around one end of the hinged plate to control the position of the saw blade, so that the saw blade can be used to cut acoustic detection pipes of various diameters. The hinged plate is clamped to the fixed plate by providing a first fixed block, a second fixed block, a column and a bolt, thereby facilitating the fixing of the saw blade and the first motor.

[0015] Thirdly, the present invention places the support tube and the flange above the workbench by means of a fixed plate, so that the support tube and the flange can move along with the support plate. The formed acoustic detection tube is passed through the support tube to support and limit the formed acoustic detection tube so that the acoustic detection tube can be cut with a saw blade. A guide groove is provided on the support tube to facilitate the passage of the formed acoustic detection tube through the support tube. Furthermore, the present invention constrains the side wall of the acoustic detection tube by means of the first and second rollers to improve the stability of the acoustic detection tube transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0018] Figure 3 This is an exploded view of the assembly of the bracket and cutting mechanism in the present invention.

[0019] Figure 4 This is a cross-sectional view of the assembly between the fixing plate, support tube and flange in the present invention.

[0020] Figure 5 This is the usage state of the cutting acoustic detection tube of the utility model. DETAILED DESCRIPTION

[0021] like Figures 1 to 4As shown, a cutting device for an acoustic detection tube comprises a workbench 1, a frame 2 is provided on one side of the workbench 1, and a driving mechanism and a cutting mechanism are respectively provided on the frame 2; the driving mechanism comprises a stepping motor 3 provided on the frame 2, a first threaded rod 4 and a second threaded rod 5 sequentially provided on one side of the stepping motor 3, a fixed rod 6 provided parallel to the lower side of the first threaded rod 4, two brackets 7 provided on the side of the first threaded rod 4 close to the workbench 1, a driving tube 8 respectively provided on the two frames 2, and a fixed tube 9 provided below the driving tube 8, the number of the fixed tube 9 and the driving tube 8 are both two, and the two fixed tubes 9 and the driving tube 8 are respectively two. The fixed tubes 9 are all movably sleeved on the fixed rod 6. The inner diameter of the fixed tube 9 matches the diameter of the fixed rod 6. The two driving tubes 8 are respectively threadedly sleeved on the first threaded rod 4 and the second threaded rod 5. The end of the first threaded rod 4 away from the stepping motor 3 is connected to one end of the second threaded rod 5. The other end of the second threaded rod 5 is rotatably mounted on the frame 2 through a bearing. The spiral directions of the first threaded rod 4 and the second threaded rod 5 are opposite. The two ends of the fixed rod 6 are respectively mounted on the frame 2. By controlling the stepping motor 3 to operate, the first threaded rod 4 and the second threaded rod 5 are driven to rotate, thereby being able to drive The two brackets 7 move in opposite directions; the cutting device includes a telescopic cylinder 10 respectively provided on the two brackets 7, a first motor 11 provided on the telescopic end of the telescopic cylinder 10, and a saw blade 12 provided on the driving end of the first motor 11. The telescopic direction of the telescopic cylinder 10 is perpendicular to the central axis of the first threaded rod 4. The saw blade 12 is located on the inner side of the first motor 11. By controlling the telescopic cylinder 10 to extend and retract, and under the operation of the first motor 11, the saw blade 12 can be controlled to cut the acoustic detection tube transported on the workbench 1; since the spiral directions of the first threaded rod 4 and the second threaded rod 5 are opposite, This stepper motor 3 drives the two brackets 7 to move in opposite directions. By controlling the operating speed of the stepper motor 3, the moving rate of the two brackets 7 and the conveying rate of the acoustic detection tube are kept consistent, so that the first motor 11 and the saw blade 12 assembled on one of the brackets 7 can be used to cut the acoustic detection tube. At the same time, the other bracket 7 drives the first motor 11 and the saw blade 12 to reset, so that the two saw blades 12 can be used to cut the continuously conveyed acoustic detection tubes in turn, so that there is more time to dissipate the heat generated by the saw blade 12 and avoid rapid turning of the cutting device to reduce the generation of impact force.

[0022] In this embodiment, a support plate 13 and a support seat 14 are provided between the telescopic cylinder 10 and the bracket 7. The support seat 14 is installed on the bracket 7, one side of the support plate 13 is installed on the side of the support seat 14, and the telescopic cylinder 10 is installed on the other side of the support plate 13. Both the support seat 14 and the support plate 13 are provided with sleeve holes, and the sleeve holes provided on the support seat 14 are connected to the sleeve holes provided on the support plate 13. A support rod 15 is movably sleeved in the sleeve hole, and the diameter of the support rod 15 matches the aperture of the sleeve hole. The central axis of the support rod 15 is parallel to the telescopic direction of the telescopic cylinder 10, and one end of the support rod 15 is connected to the first motor 11, thereby supporting and restraining the first motor 11 to reduce the shaking of the first motor 11, so that the first motor 11 can only move along the telescopic direction of the telescopic cylinder 10 to improve the telescopic stability of the telescopic cylinder 10.

[0023] Specifically, L-shaped fixing plates 16 are respectively provided on both sides of the support plate 13. The bottom of the fixing plate 16 is installed on the support plate 13, and the top of the support plate 13 is located above the workbench 1. A support tube 17 and a flange 18 are provided on the top of the fixing plate 16. The flange 18 is fixedly sleeved on one end of the support tube 17. The flange 18 is installed on the outside of the fixing plate 16 by screws, so as to facilitate the loading and unloading of the flange 18 and the support tube 17. A through hole is opened on the top of the fixing plate 16, which is connected to the inner cavity of the support tube 17. By putting the formed acoustic detection tube on the support tube 17, the formed acoustic detection tube is supported and limited, so that the saw blade 12 can be used to cut the acoustic detection tube.

[0024] Please refer again Figure 1-3 A fixed seat 19 and a hinged plate 20 are provided between the first motor 11 and the telescopic cylinder 10. The telescopic end of the telescopic cylinder 10 and one end of the support rod 15 are both mounted on the fixed seat 19. One end of the hinged plate 20 is hinged to the fixed seat 19, and the other end of the hinged plate 20 is mounted on the first motor 11. A fixing mechanism is provided between the hinged plate 20 and the fixed seat 19, so that the first motor 11, the saw blade 12 and the hinged plate 20 can rotate around one end of the hinged plate 20, thereby adjusting the position of the saw blade 12, so as to facilitate cutting of acoustic detection pipes of various diameters; the fixing mechanism includes a hinged The first fixed block 21 hinged on the plate 20, the second fixed block 22 hinged on the fixed seat 19, and the column 23 set between the first fixed block 21 and the second fixed block 22, the first fixed block 21 and the second fixed block 22 are respectively provided with a through hole and a threaded hole, one side of the threaded hole is communicated with the through hole, the hole is movably sleeved on the column 23, the threaded hole is threaded with a bolt 24, one end of the bolt 24 is in contact with the column 23, the first fixed block 21 or the second fixed block 22 is clamped and fixed to the column 23 by the bolt 24, so as to facilitate the fixed assembly of the hinged plate 20 to the fixed seat 19.

[0025] Please refer again Figure 4 Both ends of the support tube 17 are provided with guide grooves 25, which are provided on the inner wall of the support tube 17. The diameter of the guide groove 25 gradually decreases from the end of the support tube 17 to the middle of the support tube 17, so as to facilitate guiding the formed acoustic detection tube to be inserted into the support tube 17.

[0026] In this embodiment, a first roller seat 26 and a second roller seat 27 are respectively provided on both sides of the frame 2, and the first roller seat 26 and the second roller seat 27 are both installed on the workbench 1. Two first rollers 28 are rotatably provided on the first roller seat 26, and the two first rollers 28 are respectively rotatably installed on the first roller seat 26 through bearings. The two first rollers 28 are both parallel to the telescopic direction of the telescopic cylinder 10, and two second rollers 29 are rotatably provided on the second roller seat 27. The two second rollers 29 are respectively rotatably installed on the second roller seat 27 through bearings. The two second rollers 29 are vertically arranged on both sides of the second roller seat 27. By passing the acoustic detection tube through the gap between the two first rollers 28 and the gap between the two second rollers 29, the two sides of the transported acoustic detection tube are squeezed by the first roller 28 and the second roller 29 to be constrained and limited, thereby improving the stability of the acoustic detection tube transportation.

[0027] Specifically, the number of the fixing rods 6 is no less than two, and several fixing rods 6 are respectively arranged on both sides of the bracket 7. Both ends of the several fixing rods 6 are respectively provided with fixing sleeves 30, and the two ends of the fixing sleeves 30 are respectively installed on the fixing rods 6 and the frame 2, so that the two sides of the bracket 7 are supported and restricted by the several fixing rods 6 to reduce the shaking of the fixing rods 6.

[0028] The method of using this product is as follows: Figures 1 to 5 As shown, Figures 1 to 5 Before using this product, be sure to check the saw blade 12 for wear. If the saw blade 12 is severely worn, it must be replaced immediately to ensure smooth cutting of the ultrasonic tube. Furthermore, to ensure that the cutting quality of the ultrasonic tube meets the standard, it is recommended to regularly inspect the cut tube. Specifically, this is done by observing the surface quality of the end of the ultrasonic tube to determine whether the cutting quality meets the requirements.

[0029] After confirming that the saw blade 12 is in good condition, select a support tube 17 with an inner diameter that matches the diameter of the acoustic testing tube. Then, screw the flange 18 onto the top, outer side of the support plate 13. Next, adjust the first and second fixing blocks 21, 22 to their respective positions on the column 23 to adjust the specific position of the saw blade 12. Once adjustments are complete, tighten the bolts 24 to secure the first and second fixing blocks 21, 22 to the column 23.

[0030] The formed ultrasonic detection tube is then passed through the gap between the two first rollers 28 and the gap between the two second rollers 29 in sequence, and then passed through the support tube 17 so that it can be accurately cut using the saw blade 12. By controlling the operation of the stepper motor 3, one of the supports 7 is moved to the initial position for cutting the ultrasonic detection tube.

[0031] Next, the pushing mechanism is activated, pushing the acoustic detection tube forward. When the acoustic detection tube reaches the predetermined measured length, the telescopic cylinder 10 mounted on one of the brackets 7 is controlled to extend. Simultaneously, the first motor 11 and stepper motor 3 mounted on that bracket 7 are operated, and the saw blade 12 is used to cut the acoustic detection tube. Once the cutting is complete, the telescopic cylinder 10 mounted on that bracket 7 is again controlled to rapidly retract. After the telescopic cylinder 10 is reset, the first motor 11 and stepper motor 3 are deactivated. At this point, the other bracket 7 is moved to its initial position for cutting the acoustic detection tube.

[0032] Finally, when the acoustic detection tube reaches the predetermined measuring length again, the telescopic cylinder 10 mounted on the other bracket 7 is controlled to extend. Next, the first motor 11 and stepper motor 3 mounted on the other bracket 7 are operated, and the saw blade 12 mounted on the other bracket 7 is used to cut the acoustic detection tube. By repeating this process, the acoustic detection tube can be cut continuously.

[0033] Through this embodiment, the telescopic cylinder 10 is provided to drive the first motor 11 and the saw blade 12 to move, thereby controlling the saw blade 12 to cut the ultrasonic detection tube transported on the workbench 1. In addition, this embodiment is provided with a first threaded rod 4 and a second threaded rod 5 with opposite spiral directions, which are operated by controlling the stepping motor 3 to keep the movement rate of the two brackets 7 consistent with the conveying rate of the ultrasonic detection tube, and drive the two brackets 7 to move in opposite directions, so that the first motor 11 and the saw blade 12 assembled on one of the brackets 7 can be used to cut the ultrasonic detection tube. At the same time, the other bracket 7 drives the first motor 11 and the saw blade 12 to reset, so that the two saw blades 12 can be used to cut the continuously conveyed ultrasonic detection tube in turn, so that there is more time to dissipate the heat generated by the saw blade 12 and provide more time for the turning of the cutting device, thereby avoiding rapid turning of the cutting device to reduce the generation of impact force.

[0034] 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 cutting device for an acoustic detection tube, comprising a workbench (1), characterized in that: A frame (2) is provided on one side of the workbench (1), and a driving mechanism and a cutting mechanism are respectively provided on the frame (2); The driving mechanism includes a stepping motor (3) provided on a frame (2), a first threaded rod (4) and a second threaded rod (5) provided in sequence on one side of the stepping motor (3), a fixed rod (6) provided in parallel below the first threaded rod (4), two brackets (7) provided on the side of the first threaded rod (4) close to the workbench (1), a driving tube (8) provided on each of the two frames (2), and a fixed tube (9) provided below the driving tube (8), wherein the number of the fixed tubes (9) and the number of the driving tubes (8) are both two, and the two fixed tubes (9) are movably sleeved on the fixed rod (6). The two driving tubes (8) are respectively threadedly sleeved on the first threaded rod (4) and the second threaded rod (5), and the end of the first threaded rod (4) away from the stepping motor (3) is connected to one end of the second threaded rod (5), and the other end of the second threaded rod (5) is rotatably mounted on the frame (2) through a bearing, and the spiral directions of the first threaded rod (4) and the second threaded rod (5) are opposite, and the two ends of the fixed rod (6) are respectively mounted on the frame (2); The cutting device comprises a telescopic cylinder (10) respectively arranged on two brackets (7), a first motor (11) arranged on the telescopic end of the telescopic cylinder (10), and a saw blade (12) arranged on the driving end of the first motor (11), wherein the telescopic direction of the telescopic cylinder (10) is perpendicular to the central axis of the first threaded rod (4).

2. The cutting device for the acoustic detection tube according to claim 1, characterized in that: A support plate (13) and a support seat (14) are provided between the telescopic cylinder (10) and the bracket (7), the support seat (14) is mounted on the bracket (7), one side of the support plate (13) is mounted on the side of the support seat (14), and the telescopic cylinder (10) is mounted on the other side of the support plate (13), and sleeve holes are provided on the support seat (14) and the support plate (13), and the sleeve holes provided on the support seat (14) and the sleeve holes provided on the support plate (13) are connected, and a support rod (15) is movably provided in the sleeve hole, and the central axis of the support rod (15) is parallel to the telescopic direction of the telescopic cylinder (10), and one end of the support rod (15) is connected to the first motor (11).

3. The cutting device for the acoustic detection tube according to claim 2, characterized in that: The support plate (13) is provided with an L-shaped fixed plate (16) on both sides, the bottom of the fixed plate (16) is mounted on the support plate (13), the top of the support plate (13) is located above the workbench (1), and the top of the fixed plate (16) is provided with a support tube (17) and a flange (18), the flange (18) is fixedly sleeved on one end of the support tube (17), and the flange (18) is mounted on the outside of the fixed plate (16) by screws. A through hole is opened on the top of the fixed plate (16), and the through hole is connected to the inner cavity of the support tube (17).

4. The cutting device for the acoustic detection tube according to claim 2, characterized in that: A fixed seat (19) and a hinged plate (20) are provided between the first motor (11) and the telescopic cylinder (10), the telescopic end of the telescopic cylinder (10) and one end of the support rod (15) are both mounted on the fixed seat (19), one end of the hinged plate (20) is hinged to the fixed seat (19), and the other end of the hinged plate (20) is mounted on the first motor (11), and a fixing mechanism is provided between the hinged plate (20) and the fixed seat (19); The fixing mechanism includes a first fixing block (21) hinged on the hinge plate (20), a second fixing block (22) hinged on the fixing seat (19), and a column (23) arranged between the first fixing block (21) and the second fixing block (22), wherein a through hole and a threaded hole are respectively opened on the first fixing block (21) and the second fixing block (22), one side of the threaded hole is communicated with the through hole, the hole is movably sleeved on the column (23), a bolt (24) is threadedly sleeved in the threaded hole, one end of the bolt (24) is in contact with the column (23), and the first fixing block (21) or the second fixing block (22) is clamped and fixed on the column (23) by the bolt (24).

5. The cutting device for the acoustic detection tube according to claim 3, characterized in that: Both ends of the support tube (17) are provided with guide grooves (25). The guide grooves (25) are provided on the inner wall of the support tube (17). The groove diameter of the guide grooves (25) gradually decreases from the end of the support tube (17) to the middle of the support tube (17).

6. The cutting device for the acoustic detection tube according to claim 1, characterized in that: A first roller seat (26) and a second roller seat (27) are respectively provided on both sides of the frame (2), and the first roller seat (26) and the second roller seat (27) are both installed on the workbench (1). Two first roller shafts (28) are rotatably provided on the first roller seat (26), and the two first roller shafts (28) are parallel to the telescopic direction of the telescopic cylinder (10). Two second roller shafts (29) are rotatably provided on the second roller seat (27), and the two second roller shafts (29) are vertically provided on both sides of the second roller seat (27).

7. The cutting device for an acoustic detection tube according to claim 1, characterized in that: The number of the fixing rods (6) is not less than two, and the plurality of fixing rods (6) are respectively arranged on both sides of the bracket (7). Both ends of the plurality of fixing rods (6) are respectively provided with fixing sleeves (30), and both ends of the fixing sleeves (30) are respectively installed on the fixing rods (6) and the frame (2).

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