A heat exchanger pipe turning tool

Abstract

The present invention discloses a heat exchanger pipe turning tool, which relates to the field of turning devices and includes an operating table, a support plate being slidably mounted on the end of the operating table, and a locking piece being fixedly mounted on the end of the operating table, through which the pipe is preliminarily fixed; in the heat exchanger pipe turning tool, when the outer surface of the pipe is subjected to force during the turning process, the force can be transmitted to the rotating block through a guide rod and buffered by an elastic piece, thereby dispersing the cutting force, reducing damage to the inner wall caused by uneven or excessive force, avoiding cracks and dents, effectively reducing deformation of the inner wall during the cutting process, maintaining the shape of the pipe stable, improving cutting accuracy, reducing the vibration amplitude of the pipe, preventing resonance, thereby improving cutting stability, and reducing processing errors.

Description

Technical Field

[0001] The invention relates to a turning device technology, in particular to a turning tool for a heat exchanger pipe. Background Art

[0002] A heat exchanger, also known as a heat exchanger, is a specialized device used to transfer heat between two fluids. It has important applications in industries such as petroleum, chemical engineering, light industry, pharmaceuticals, and energy. A lathe is a metalworking machine used to machine surfaces like those of pipes. It is a common type of traditional machining tool used to manufacture various parts and workpieces, and is also suitable for machining curved surfaces like pipes.

[0003] The patent application with publication number CN118559053B discloses a metal pipe turning device, which can resist the pipe through the bottom of the rubber roller, so that the inner cavity of the pipe can be connected to the block before the pipe contacts the processed pipe, and the movement of the pipe is satisfied by the deformation of the rubber roller. During the process, the movement of the pipe is satisfied by the rolling of the rubber roller. When the device is used, the pipe can be connected to the block before the two pipes contact, so that the block can contact the pipe when the pipe is transported, thereby increasing the stability of the pipe when being transported, so that the block can not only increase the stability of the pipe when it is processed, but also increase the stability of the pipe when it is transported, thereby increasing the stability of the block when in use.

[0004] When existing equipment is in use, heat exchanger pipe fittings may be deformed due to the action of cutting force, especially thin-walled or long pipe fittings. Due to the influence of temperature and pressure, the workpiece may undergo thermal deformation or mechanical deformation, resulting in reduced processing accuracy, which in turn affects the subsequent processing and assembly accuracy. At the same time, heat exchanger pipe fittings will generate a large amount of chips during the turning process, which may cause chip accumulation, blockage, and even interference with the tool, thereby affecting the smooth progress of the processing process. Therefore, a heat exchanger pipe turning tool has been developed. Summary of the Invention

[0005] The purpose of the present invention is to provide a heat exchanger pipe turning tool to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat exchanger pipe turning tool, comprising an operating table, a support plate being slidably mounted on the end of the operating table, and a locking member being fixedly mounted on the end of the operating table, through which the pipe is initially fixed;

[0007] A protection component is assembled on the end of the support plate, and the pipe is locked and supported by the protection component in cooperation with the locking piece;

[0008] A cleaning assembly is mounted on the end of the support plate, and is used to clean the outer surface of the pipe after cutting;

[0009] The protective assembly includes a fixed block fixedly connected to the support plate, and a positioning plate is fixedly installed at the end of the fixed block. A telescopic member is fixedly installed at the middle position of the end of the fixed block, and the output end of the telescopic member passes through and extends to the outside of the positioning plate;

[0010] A telescopic plate is fixedly mounted on the output end of the telescopic member, and a plurality of groups of positioning rods are rotatably mounted on the outer surface of the telescopic plate, and the plurality of groups of positioning rods are evenly distributed on the outer surface of the telescopic plate. A positioning groove corresponding to the positioning rod is formed at the end of the positioning plate, and the inner wall of the positioning groove is slidably connected to the outer surface of the positioning rod;

[0011] A movable rod is rotatably installed at the end of the positioning rod, and the outer surface of the movable rod is rotatably connected to the outer surface of the positioning plate. A power block is fixed at the end of the movable rod, and a guide rod is slidably installed at the end of the power block. An arc plate is fixedly installed at the end of the guide rod, and the inner wall of the pipe is supported by the arc plate.

[0012] As a further optimization solution of the present invention, a docking plate is fixedly installed on the end of the telescopic plate, and a bottom plate is fixedly installed on the end of the docking plate. The inner wall of the bottom plate is provided with a guide groove corresponding to the positioning rod.

[0013] As a further optimized solution of the present invention, a guide block is slidably mounted on the inner wall of the guide groove, and the end of the guide block is fixedly connected to the end of the guide rod.

[0014] As a further optimization scheme of the present invention, a support rod is fixedly installed at the middle position of the end of the base plate, and a rotating block is rotatably installed at the end of the support rod. At the same time, an elastic part is sleeved on the outer surface of the support rod, and one end of the elastic part is fixedly connected to the end of the rotating block, and the other end is fixedly connected to the outer surface of the support rod.

[0015] As a further optimization solution of the present invention, a power rod is rotatably mounted on the end of the guide block, and at the same time, one end of the power rod away from the guide block is rotatably connected to the end of the rotating block.

[0016] As a further optimization solution of the present invention, the cleaning assembly includes a movable plate slidably connected to the support plate, the ends of the movable plate are symmetrically fixedly mounted with support columns, and the ends of the support columns are slidably mounted with support plates.

[0017] As a further optimization solution of the present invention, a protective block is fixedly installed between the two support columns, and a spraying member is fixedly installed at the end of the protective block. A driving member is fixedly installed at the end of the protective block and on one side of the spraying member.

[0018] As a further optimization solution of the present invention, a driving plate is fixedly installed on the output end of the driving member, a moving rod is fixedly installed on the end of the driving plate, and the end of the moving rod passes through and extends to the outside of the protective block.

[0019] As a further optimization solution of the present invention, a swing plate is symmetrically mounted on the inner wall of the protection block, the end of the swing plate passes through and extends to the outside of the protection block, and a roller is rotatably mounted on the end of the swing plate.

[0020] As a further optimization solution of the present invention, connecting blocks are fixedly installed on both sides of the moving rod, and the outer surface of the connecting block is in contact with the outer surface of the swing plate.

[0021] Compared with the prior art, the heat exchanger tube turning tool provided by the present invention has the following beneficial effects:

[0022] 1. During the turning process, when the outer surface of the pipe is subjected to force, it can be transmitted to the rotating block through the guide rod and buffered by the elastic part, which can disperse the cutting force, reduce the damage to the inner wall caused by uneven or excessive force, avoid cracks and depressions, effectively reduce the deformation of the inner wall during the cutting process, maintain the shape of the pipe, improve cutting accuracy, reduce the vibration amplitude of the pipe, prevent resonance, thereby improving cutting stability and reducing processing errors.

[0023] 2. At the same time, the inner wall support of the pipe fitting helps to evenly distribute the force on the pipe fitting, making the release of internal stress more balanced. The inner wall support can limit the accumulation of uneven stress and reduce the risk of deformation caused by stress concentration.

[0024] 3. Prevent chip accumulation from causing temperature rise in the processing area by cleaning components, avoid uneven pressure on the tool, which affects the heat treatment performance of the workpiece and tool, and avoid the situation where the chips are not effectively cleaned and the chips come into contact with the workpiece surface again, causing scratches or indentations. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the overall internal structure provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of a protection component provided in an embodiment of the present invention;

[0029] Figure 4 A first cross-sectional view of the internal structure of the protective assembly provided by an embodiment of the present invention;

[0030] Figure 5 A second cross-sectional view of the internal structure of the protective assembly provided by an embodiment of the present invention;

[0031] Figure 6 A third cross-sectional view of the internal structure of the protective assembly provided by an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the cleaning component structure provided by an embodiment of the present invention;

[0033] Figure 8 A first cross-sectional view of the internal structure of a cleaning assembly provided by an embodiment of the present invention;

[0034] Figure 9 This is a second cross-sectional view of the internal structure of the cleaning component provided in an embodiment of the present invention.

[0035] Description of reference numerals:

[0036] 1. Operating table; 2. Protection assembly; 3. Cleaning assembly; 11. Support plate; 12. Locking part; 13. Turning part; 21. Fixed block; 22. Telescopic part; 221. Telescopic plate; 23. Positioning plate; 231. Positioning groove; 24. Positioning rod; 25. Movable rod; 251. Power block; 26. Docking plate; 27. Bottom plate; 271. Guide groove; 28. Guide rod; 281. Arc plate; 282. Guide block; 29. ​​Power rod; 291. Rotating block; 292. Support rod; 293. Elastic part; 31. Moving plate; 32. Support column; 321. Support plate; 33. Protection block; 34. Spraying part; 35. Driving part; 36. Driving plate; 37. Moving rod; 371. Connecting block; 38. Swinging plate; 381. Roller. DETAILED DESCRIPTION

[0037] The following will provide a clear and complete description of 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium, or they can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example: See Figures 1-9 A heat exchanger pipe turning tool includes an operating table 1, a support plate 11 is slidably installed at the end of the operating table 1, and a locking piece 12 is fixedly installed at the end of the operating table 1, and the pipe is initially fixed by the locking piece 12.

[0040] In this solution, the end of the support plate 11 is provided with a device with a telescopic function, such as an electric telescopic rod, which drives the support plate 11 to move and is suitable for pipes of different lengths. The locking member 12 is a component with a fixing function, such as a three-jaw chuck, and the pipe is preliminarily fixed by the locking member 12.

[0041] At the same time, a turning part 13 is slidably installed on one side of the operating table 1. The turning part 13 is composed of multiple groups of blades of different specifications, and the lower end of the turning part 13 is provided with an electric telescopic rod and other components with telescopic function. The turning part 13 is driven to move by the electric telescopic rod, making it suitable for different scenarios.

[0042] Furthermore, the protective component 2 is assembled on the end of the support plate 11, and the pipe fitting is locked and supported by the protective component 2 in cooperation with the locking member 12; wherein, the protective component 2 includes a fixed block 21 fixedly connected to the support plate 11, and a positioning plate 23 is fixedly installed on the end of the fixed block 21, and a telescopic member 22 is fixedly installed in the middle position of the end of the fixed block 21, and the output end of the telescopic member 22 passes through and extends to the outside of the positioning plate 23.

[0043] In this embodiment, the telescopic member 22 is a component with a telescopic function such as an electric telescopic rod, and is connected to an external control device. The telescopic member 22 drives the telescopic plate 221 fixedly installed at its output end to move until it reaches the optimal position and stops.

[0044] The end of the positioning plate 23 is fixedly connected to the fixing block 21 via a connecting rod, thereby forming a certain space between the positioning plate 23 and the fixing block 21 for protecting the telescopic member 22 .

[0045] The end of the fixed block 21 is provided with a device with telescopic function such as an electric telescopic rod, which drives the entire protective assembly 2 to move on the inner wall of the pipe, so that it moves synchronously with the turning end to ensure the overall stability of the pipe.

[0046] Furthermore, a telescopic plate 221 is fixedly installed at the output end of the telescopic member 22, and multiple groups of positioning rods 24 are rotatably installed on the outer surface of the telescopic plate 221, and the multiple groups of positioning rods 24 are evenly distributed on the outer surface of the telescopic plate 221. A positioning groove 231 corresponding to the positioning rod 24 is opened at the end of the positioning plate 23, and the inner wall of the positioning groove 231 is slidably connected to the outer surface of the positioning rod 24.

[0047] Specifically, when the telescopic plate 221 moves, it synchronously drives the positioning rod 24 installed on its outer surface to move. Since the outer surface of the positioning rod 24 is slidingly connected to the inner wall of the positioning groove 231, the positioning rod 24 is ensured to remain stable as a whole when moving.

[0048] Furthermore, a movable rod 25 is rotatably installed at the end of the positioning rod 24, and the outer surface of the movable rod 25 is rotatably connected to the outer surface of the positioning plate 23. A power block 251 is fixed at the end of the movable rod 25, and a guide rod 28 is slidably installed at the end of the power block 251. An arc plate 281 is fixedly installed at the end of the guide rod 28, and the inner wall of the pipe fitting is supported by the arc plate 281.

[0049] Specifically, when the positioning rod 24 moves, it synchronously drives the movable rod 25 installed at its end to move, wherein the outer surface of the movable rod 25 is rotatably connected to the outer surface of the positioning plate 23, so that when the positioning rod 24 drives the movable rod 25 to move, the movable rod 25 rotates around the connection with the positioning plate 23.

[0050] The power block 251 is a component with telescopic function such as a telescopic rod, so that when the movable rod 25 rotates, it synchronously drives the power block 251 to move, wherein a circular ring is rotatably installed on the end of the power block 251, and a circular plate is provided on the outer surface of the guide rod 28. The outer surface of the circular plate fits with the outer surface of the circular ring, so that when the movable rod 25 is rotated under force, the power block 251 drives the guide rod 28 to move, and drives the arc plate 281 fixedly installed at the end of the guide rod 28 to move, so that the arc plate 281 enters the inner wall of the pipe.

[0051] Furthermore, a docking plate 26 is fixedly mounted on the end of the telescopic plate 221, and a bottom plate 27 is fixedly mounted on the end of the docking plate 26. The inner wall of the bottom plate 27 is provided with a guide groove 271 corresponding to the positioning rod 24. A guide block 282 is slidably mounted on the inner wall of the guide groove 271, and the end of the guide block 282 is fixedly connected to the end of the guide rod 28.

[0052] Specifically, the end of the docking plate 26 is provided with a fixing component such as a clamp, which locks the docking plate 26 and the telescopic plate 221 together. At the same time, when the guide rod 28 is moved under force, it is limited by the guide block 282, so that the guide rod 28 moves along the inner wall of the guide groove 271.

[0053] Furthermore, a support rod 292 is fixedly mounted in the middle of the end of the bottom plate 27. A rotating block 291 is rotatably mounted on the end of the support rod 292. An elastic member 293 is sleeved on the outer surface of the support rod 292. One end of the elastic member 293 is fixedly connected to the end of the rotating block 291, and the other end is fixedly connected to the outer surface of the support rod 292. A power rod 29 is rotatably mounted on the end of the guide block 282. The end of the power rod 29 away from the guide block 282 is rotatably connected to the end of the rotating block 291.

[0054] Specifically, the elastic member 293 is a torsion spring, which is used to limit the rotating block 291 so that the rotating block 291 is always in a taut state. Since the end of the guide block 282 is rotatably connected to the end of the rotating block 291 through the power rod 29, when the outer surface of the pipe is subjected to force during the turning process, it can be transmitted to the rotating block 291 through the guide rod 28 and buffered by the elastic member 293, which can disperse the cutting force, reduce the damage to the inner wall caused by uneven or excessive force, avoid cracks and dents, effectively reduce the deformation of the inner wall during the cutting process, keep the shape of the pipe stable, and improve the cutting accuracy.

[0055] Furthermore, a cleaning assembly 3 is assembled on the end of the support plate 11, and the outer surface of the pipe after cutting is cleaned by the cleaning assembly 3; the cleaning assembly 3 includes a movable plate 31 slidably connected to the support plate 11, and a support column 32 is symmetrically fixedly installed on the end of the movable plate 31, and a support plate 321 is slidably installed on the end of the support column 32.

[0056] In this embodiment, a slide groove is provided at the end of the support plate 11, and a slider is fixedly installed at the end of the movable plate 31, and the outer surface of the slider is slidably connected to the inner wall of the slide groove, thereby limiting the movable plate 31 to ensure that the movable plate 31 remains stable as a whole when moving. At the same time, an electric telescopic rod or other device with a telescopic function is provided at the end of the movable plate 31, and the movable plate 31 is driven to move by the electric telescopic rod.

[0057] The end of the support column 32 is provided with an elastic component such as a spring. The end of the spring is fixedly connected to the end of the support plate 321. When the pipe is placed on the support plate 321, the spring presses the support plate 321 tightly against the outer surface of the pipe. This facilitates the support plate 321 to clean the outer surface of the pipe. The cross section of the support plate 321 is curved.

[0058] Furthermore, a protection block 33 is fixedly installed between the two support columns 32 , and a spraying member 34 is fixedly installed at the end of the protection block 33 . A driving member 35 is fixedly installed at the end of the protection block 33 and on one side of the spraying member 34 .

[0059] Specifically, the spraying member 34 is composed of a nozzle and a pipe, and the nozzle sprays water mist onto the outer surface of the pipe during cutting, so as to control the temperature of the outer surface of the pipe and prevent the temperature of the pipe from being too high during processing.

[0060] Furthermore, a driving plate 36 is fixedly mounted on the output end of the driving member 35 , and a moving rod 37 is fixedly mounted on the end of the driving plate 36 . Meanwhile, the end of the moving rod 37 penetrates and extends to the outside of the protective block 33 .

[0061] Specifically, the driving member 35 is a device with a telescopic function, such as an electric telescopic rod, and is connected to an external control device. At the same time, when the driving member 35 is started, it synchronously drives the driving plate 36 set at its output end to move. Since the moving rod 37 is fixedly installed at the end of the driving plate 36, when the driving plate 36 moves, the moving rod 37 is driven to move.

[0062] Furthermore, a swing plate 38 is symmetrically mounted on the inner wall of the protection block 33 , and an end of the swing plate 38 passes through and extends to the outside of the protection block 33 . A roller 381 is rotatably mounted on the end of the swing plate 38 .

[0063] Specifically, the ends of the swing plates 38 are arc-shaped and are distributed on both sides of the moving rod 37. The rollers 381 rotatably installed at the ends of the swing plates 38 support the pipe fittings and ensure that the pipe fittings remain stable as a whole when rotating. A spring is fixedly installed between the two swing plates 38 to limit the swing plates 38.

[0064] Furthermore, connecting blocks 371 are fixedly installed on both sides of the moving rod 37 , and the outer surface of the connecting block 371 is in contact with the outer surface of the swing plate 38 .

[0065] Specifically, when the moving rod 37 moves, it synchronously drives the connecting block 371 fixedly installed on its outer surface to move, so that when the connecting block 371 moves, the end of the swing plate 38 is squeezed, so that the swing plate 38 rotates around the end of the protective block 33, so that the two rollers 381 are synchronously moved toward the middle, and when the connecting block 371 moves in the opposite direction, it is restored to its initial position by the spring fixedly installed between the two swing plates 38, thereby avoiding the situation where the chips are not effectively cleaned up, causing the chips to contact the workpiece surface again and produce scratches or indentations.

[0066] The control device can be a single-chip microcomputer (MCU). In this embodiment, the MCU is a typical embedded microcontroller, consisting of an arithmetic unit (APU), a controller, memory, and input / output devices, effectively acting as a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its greatest advantages are its small size, allowing it to be placed inside the instrument, low memory capacity, simple input / output interfaces, and low power consumption.

[0067] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A heat exchanger pipe turning tool, characterized in that: The operating platform (1) comprises an operating table (1), a support plate (11) being slidably mounted on the end of the operating table (1), and a locking member (12) being fixedly mounted on the end of the operating table (1), and the pipe fitting is preliminarily fixed by the locking member (12); A protective component (2) is assembled on the end of the support plate (11), and the protective component (2) cooperates with the locking member (12) to lock and support the pipe fitting; A cleaning assembly (3) is assembled on the end of the support plate (11), and the outer surface of the cut pipe is cleaned by the cleaning assembly (3); The protective assembly (2) comprises a fixed block (21) fixedly connected to the support plate (11), a positioning plate (23) is fixedly mounted on the end of the fixed block (21), a telescopic member (22) is fixedly mounted at the middle position of the end of the fixed block (21), and the output end of the telescopic member (22) passes through and extends to the outside of the positioning plate (23); A telescopic plate (221) is fixedly mounted on the output end of the telescopic member (22); a plurality of positioning rods (24) are rotatably mounted on the outer surface of the telescopic plate (221); and the plurality of positioning rods (24) are evenly distributed on the outer surface of the telescopic plate (221); a positioning groove (231) corresponding to the positioning rod (24) is formed at the end of the positioning plate (23); and the inner wall of the positioning groove (231) is slidably connected to the outer surface of the positioning rod (24); A movable rod (25) is rotatably mounted on the end of the positioning rod (24), the outer surface of the movable rod (25) is rotatably connected to the outer surface of the positioning plate (23), a power block (251) is fixed on the end of the movable rod (25), a guide rod (28) is slidably mounted on the end of the power block (251), and an arc plate (281) is fixedly mounted on the end of the guide rod (28), and the inner wall of the pipe is supported by the arc plate (281); A docking plate (26) is fixedly mounted on the end of the telescopic plate (221), and a bottom plate (27) is fixedly mounted on the end of the docking plate (26). The inner wall of the bottom plate (27) is provided with a guide groove (271) corresponding to the positioning rod (24); A guide block (282) is slidably mounted on the inner wall of the guide groove (271), and the end of the guide block (282) is fixedly connected to the end of the guide rod (28); A support rod (292) is fixedly installed at the middle position of the end of the bottom plate (27), and a rotating block (291) is rotatably installed at the end of the support rod (292). At the same time, an elastic member (293) is sleeved on the outer surface of the support rod (292), and one end of the elastic member (293) is fixedly connected to the end of the rotating block (291), and the other end is fixedly connected to the outer surface of the support rod (292); A power rod (29) is rotatably mounted on the end of the guide block (282), and an end of the power rod (29) away from the guide block (282) is rotatably connected to the end of the rotating block (291).

2. A heat exchanger tube turning tool according to claim 1, characterized in that: The cleaning assembly (3) comprises a movable plate (31) slidably connected to the support plate (11), support columns (32) are symmetrically fixedly mounted on the ends of the movable plate (31), and support plates (321) are slidably mounted on the ends of the support columns (32).

3. A heat exchanger tube turning tool according to claim 2, characterized in that: A protective block (33) is fixedly mounted between the two support columns (32), a spraying member (34) is fixedly mounted at the end of the protective block (33), and a driving member (35) is fixedly mounted at the end of the protective block (33) and on one side of the spraying member (34).

4. A heat exchanger tube turning tool according to claim 3, characterized in that: A driving plate (36) is fixedly mounted on the output end of the driving member (35), a moving rod (37) is fixedly mounted on the end of the driving plate (36), and the end of the moving rod (37) passes through and extends to the outside of the protective block (33).

5. A heat exchanger tube turning tool according to claim 4, characterized in that: A swing plate (38) is symmetrically mounted on the inner wall of the protection block (33), and the end of the swing plate (38) penetrates and extends to the outside of the protection block (33). A roller (381) is rotatably mounted on the end of the swing plate (38).

6. A heat exchanger tube turning tool according to claim 5, characterized in that: Connecting blocks (371) are fixedly mounted on both sides of the moving rod (37), and the outer surface of the connecting block (371) is in contact with the outer surface of the swing plate (38).

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