Turning tool for heat exchanger pipe fittings

Abstract

The invention discloses a heat exchanger pipe fitting turning tool, and relates to the field of turning devices.The heat exchanger pipe fitting turning tool comprises an operation table, a supporting plate is installed at the end of the operation table in a sliding mode, meanwhile, a locking piece is fixedly installed at the end of the operation table, and a pipe fitting is preliminarily fixed through the locking piece; according to the turning tool for the heat exchanger pipe fitting, in the turning process, when the outer surface of the pipe fitting is stressed, the stress can be transmitted to the rotating block through the guide rod, the elastic piece buffers the stress, cutting force can be dispersed, damage to the inner wall caused by uneven or overlarge stress is reduced, cracks and sunken parts are avoided, deformation of the inner wall in the cutting process is effectively reduced, and the turning quality of the heat exchanger pipe fitting is improved. The shape stability of the pipe fitting is kept, the cutting precision is improved, the vibration amplitude of the pipe fitting is reduced, and the resonance phenomenon is prevented, so that the cutting stability is improved, and machining errors are reduced.

Description

Technical Field

[0001] The present invention relates to the technology of turning devices, and particularly to a turning tooling for heat exchanger pipe fittings. Background Art

[0002] A heat exchanger, also known as a heat exchanger, is a special device for heat exchange between two fluids. It has important applications in industrial production such as petroleum, chemical industry, light industry, pharmaceuticals, and energy; a lathe is a metal processing machine tool used for machining the surfaces of pipes and other parts. It is a common type in traditional machining, used for manufacturing various components and workpieces, and is also convenient for machining workpieces with curved surfaces such as pipes.

[0003] The patent application with the publication number CN118559053B discloses a metal pipe turning device. In this metal pipe turning device, the bottom of the rubber roller can abut against the pipe, so that the inner cavity of the pipe can be connected to the plug before the pipe contacts the processed pipe, and the deformation of the rubber roller is used to meet the movement of the pipe. During the process, the rolling of the rubber roller is used to meet the movement of the pipe. When the device is in use, the pipe can be connected to the plug before the two pipes contact, so that the plug can contact the pipe when the pipe is being transported, increasing the stability of the pipe during transportation. This makes the plug not only increase the stability of the pipe during processing, but also increase the stability of the pipe during transportation, thereby increasing the stability of the plug during use.

[0004] When the existing equipment is in use, the heat exchanger pipe fittings may be deformed due to the action of cutting force. Especially for 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 machining accuracy, which in turn affects the subsequent machining and assembly accuracy. At the same time, a large amount of chips are generated during the turning process of the heat exchanger pipe fittings, which may cause chip accumulation, blockage, and even interfere with the tool, thus affecting the smooth progress of the machining process. Therefore, a turning tooling for heat exchanger pipe fittings has been developed. Summary of the Invention

[0005] The purpose of the present invention is to provide a turning tooling for heat exchanger pipe fittings to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A turning tooling for heat exchanger pipe fittings includes an operation table. A support plate is slidably installed at the end of the operation table, and a locking member is fixedly installed at the end of the operation table to initially fix the pipe fitting through the locking member. A protection assembly is assembled at the end of the support plate to lock and support the pipe fitting in cooperation with the locking member. A cleaning component is assembled at the end of the pallet, and the outer surface of the pipe fitting after cutting is cleaned by the cleaning component; Among them, the protection component includes a fixed block fixedly connected to the pallet. At the same time, a positioning plate is fixedly installed at the end of the fixed block, and a telescopic member is fixedly installed at the middle position of the end of the fixed block. The output end of the telescopic member penetrates and extends to the outside of the positioning plate; The output end of the telescopic member is fixedly installed with a telescopic plate. A plurality of positioning rods are rotatably installed on the outer surface of the telescopic plate, and the plurality of positioning rods are evenly distributed on the outer surface of the telescopic plate. A positioning groove corresponding to the positioning rod is opened 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; The end of the positioning rod is rotatably installed with a movable rod. 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. A guide rod is slidably installed at the end of the power block. An arc-shaped plate is fixedly installed at the end of the guide rod, and the inner wall of the pipe fitting is supported by the arc-shaped plate.

[0007] As a further optimized solution of the present invention, a docking plate is fixedly installed at the end of the telescopic plate. At the same time, a bottom plate is fixedly installed at the end of the docking plate, and a guide groove corresponding to the positioning rod is opened on the inner wall of the bottom plate.

[0008] As a further optimized solution of the present invention, a guide block is slidably installed 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.

[0009] As a further optimized solution of the present invention, a support rod is fixedly installed at the middle position of the end of the bottom plate. A rotating block is rotatably installed at the end of the support rod. At the same time, an elastic member is sleeved on the outer surface of the support rod. One end of the elastic member 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.

[0010] As a further optimized solution of the present invention, a power rod is rotatably installed at the end of the guide block. At the same time, the end of the power rod far from the guide block is rotatably connected to the end of the rotating block.

[0011] As a further optimized solution of the present invention, the cleaning component includes a moving plate slidably connected to the pallet. Support columns are symmetrically fixedly installed at the end of the moving plate, and a support plate is slidably installed at the end of the support column.

[0012] As a further optimized solution of the present invention, a protection block is fixedly installed between the two support columns. At the same time, a spraying member is fixedly installed at the end of the protection block, and a driving member is fixedly installed at the end of the protection block and on one side of the spraying member.

[0013] As a further optimized solution of the present invention, a driving plate is fixedly installed at the output end of the driving member, a moving rod is fixedly installed at the end of the driving plate, and at the same time, the end of the moving rod penetrates and extends to the outside of the protective block.

[0014] As a further optimized solution of the present invention, swing plates are symmetrically and rotatably installed on the inner wall of the protective block, the ends of the swing plates penetrate and extend to the outside of the protective block, and at the same time, rollers are rotatably installed at the ends of the swing plates.

[0015] As a further optimized solution of the present invention, connecting blocks are fixedly installed on both sides of the moving rod, and the outer surfaces of the connecting blocks are attached to the outer surfaces of the swing plates.

[0016] Compared with the prior art, a turning tooling for heat exchanger pipe fittings provided by the present invention has the following beneficial effects: 1. During the turning process, when the outer surface of the pipe fitting is stressed, it can be transmitted to the rotating block through the guiding rod, and the elastic member buffers it, which can disperse the cutting force, reduce the inner wall damage caused by uneven or excessive stress, avoid cracks and depressions, effectively reduce the inner wall deformation during cutting, maintain the shape stability of the pipe fitting, improve the cutting accuracy, reduce the vibration amplitude of the pipe fitting, prevent resonance, thereby improving the cutting stability and reducing the processing error.

[0017] 2. At the same time, the inner wall support of the pipe fitting helps to evenly distribute the stress of 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.

[0018] 3. The cleaning component prevents the accumulation of chips from causing the temperature to rise in the processing area, avoids uneven pressure on the tool, thereby affecting the heat treatment performance of the workpiece and the tool, and at the same time avoids the situation where the chips come into contact with the workpiece surface again and cause scratches or indentations when the chips cannot be effectively cleaned. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present invention; Figure 2 It is a schematic diagram of the overall internal structure provided by the embodiment of the present invention; Figure 3Schematic diagram of the protection component structure provided by the embodiment of the present invention; Figure 4 First cross-sectional view of the internal structure of the protection component provided by the embodiment of the present invention; Figure 5 Second cross-sectional view of the internal structure of the protection component provided by the embodiment of the present invention; Figure 6 Third cross-sectional view of the internal structure of the protection component provided by the embodiment of the present invention; Figure 7 Schematic diagram of the cleaning component structure provided by the embodiment of the present invention; Figure 8 First cross-sectional view of the internal structure of the cleaning component provided by the embodiment of the present invention; Figure 9 Second cross-sectional view of the internal structure of the cleaning component provided by the embodiment of the present invention.

[0021] Explanation of reference numerals: 1. Operating table; 2. Protection component; 3. Cleaning component; 11. Support plate; 12. Locking member; 13. Turning part; 21. Fixed block; 22. Telescopic member; 221. Telescopic plate; 23. Positioning plate; 231. Positioning groove; 24. Positioning rod; 25. Moving 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 member; 31. Moving plate; 32. Support column; 321. Support plate; 33. Protection block; 34. Spraying member; 35. Driving member; 36. Driving plate; 37. Moving rod; 371. Connecting block; 38. Swing plate; 381. Roller. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example: Please refer to Figures 1-9 , a turning tooling for heat exchanger pipe fittings, including an operating table 1. A support plate 11 is slidably installed at the end of the operating table 1. At the same time, a locking member 12 is fixedly installed at the end of the operating table 1 to initially fix the pipe fittings through the locking member 12.

[0025] In this solution, a device with a telescopic function such as an electric telescopic rod is provided at the end of the support plate 11. The support plate 11 is driven to move through the electric telescopic rod, so as to be applicable to pipe fittings of different lengths. The locking member 12 is a component with a fixing function such as a three-jaw chuck, and the pipe fittings are initially fixed through the locking member 12.

[0026] At the same time, a turning member 13 is slidably installed on one side of the operating table 1. The turning member 13 is composed of multiple groups of blades with different specifications, and a component with a telescopic function such as an electric telescopic rod is provided at the lower end of the turning member 13. The turning member 13 is driven to move through the electric telescopic rod to make it applicable to different scenarios.

[0027] Furthermore, a protection component 2 is assembled at the end of the support plate 11. The pipe fittings are locked and supported through the cooperation of the protection component 2 and the locking member 12. Among them, the protection component 2 includes a fixed block 21 fixedly connected to the support plate 11. At the same time, a positioning plate 23 is fixedly installed at the end of the fixed block 21, and a telescopic member 22 is fixedly installed at the middle position of the end of the fixed block 21. The output end of the telescopic member 22 passes through and extends outside the positioning plate 23.

[0028] 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 plate 221 fixedly installed at its output end is driven to move through the telescopic member 22 until it reaches the optimal position and then stops.

[0029] One end of the positioning plate 23 is fixedly connected to the fixed block 21 through a connecting rod, so that a certain space is formed between the positioning plate 23 and the fixed block 21 for protecting the telescopic member 22.

[0030] An end of the fixed block 21 is provided with a device having a telescopic function such as an electric telescopic rod. The entire protection assembly 2 is driven by the electric telescopic rod to move on the inner wall of the pipe fitting, so that it moves synchronously with the turning end to ensure the overall stability of the pipe fitting.

[0031] Further, a telescopic plate 221 is fixedly installed at the output end of the telescopic member 22. A plurality of positioning rods 24 are rotatably installed 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. Positioning grooves 231 corresponding to the positioning rods 24 are 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.

[0032] Specifically, when the telescopic plate 221 moves, it synchronously drives the positioning rod 24 rotatably installed on its outer surface to move. Since the outer surface of the positioning rod 24 is slidably connected to the inner wall of the positioning groove 231, it is ensured that the positioning rod 24 remains stable as a whole when moving.

[0033] Further, a movable rod 25 is rotatably installed at 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 to the end of the movable rod 25. 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 to support the inner wall of the pipe fitting through the arc plate 281.

[0034] Specifically, when the positioning rod 24 moves, it synchronously drives the movable rod 25 rotatably installed at its end to move. 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 its connection with the positioning plate 23.

[0035] The power block 251 is a component having a telescopic function such as a telescopic rod. When the movable rod 25 rotates, it synchronously drives the power block 251 to move. A ring is rotatably installed at 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 is attached to the outer surface of the ring. Therefore, when the movable rod 25 is stressed and rotates, it cooperates with the power block 251 to drive 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 fitting.

[0036] Further, a docking plate 26 is fixedly installed at the end of the telescopic plate 221. At the same time, a bottom plate 27 is fixedly installed at the end of the docking plate 26. A guiding groove 271 corresponding to the positioning rod 24 is provided on the inner wall of the bottom plate 27. A guiding block 282 is slidably installed on the inner wall of the guiding groove 271, and the end of the guiding block 282 is fixedly connected to the end of the guiding rod 28.

[0037] Specifically, a clamping component such as a clamp is provided at the end of the docking plate 26. The docking plate 26 and the telescopic plate 221 are locked together through the clamp. At the same time, when the guiding rod 28 is stressed and moves, it is limited by the guiding block 282, so that the guiding rod 28 moves along the inner wall of the guiding groove 271.

[0038] Further, a support rod 292 is fixedly installed at the middle position of the end of the bottom plate 27. 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. 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 installed at the end of the guiding block 282, and the end of the power rod 29 away from the guiding block 282 is rotatably connected to the end of the rotating block 291.

[0039] 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 guiding block 282 is rotatably connected to the end of the rotating block 291 through the power rod 29, during the turning process, when the outer surface of the pipe fitting is stressed, it can be transmitted to the rotating block 291 through the guiding rod 28, and the elastic member 293 buffers it, which can disperse the cutting force, reduce the inner wall damage caused by uneven or excessive stress, avoid cracks and depressions, effectively reduce the inner wall deformation during the cutting process, keep the shape of the pipe fitting stable, and improve the cutting accuracy.

[0040] Further, a cleaning component 3 is assembled at the end of the support plate 11 to clean the outer surface of the pipe fitting after cutting; the cleaning component 3 includes a moving plate 31 slidably connected to the support plate 11. Symmetrically fixed supports 32 are installed at the end of the moving plate 31, and a support plate 321 is slidably installed at the end of the support 32.

[0041] In this embodiment, a sliding groove is provided at the end of the support plate 11, and a slider is fixedly installed at the end of the moving plate 31. The outer surface of the slider is slidably connected to the inner wall of the sliding groove, thereby limiting the moving plate 31 to ensure that the moving plate 31 remains stable as a whole during movement. At the same time, a telescopic device such as an electric telescopic rod is provided at the end of the moving plate 31 to drive the moving plate 31 to move through the electric telescopic rod.

[0042] An elastic component such as a spring is provided at the end of the support column 32, and at the same time, the end of the spring is fixedly connected to the end of the support plate 321. When the pipe fitting is placed on the support plate 321, the support plate 321 is tightly pressed against the outer surface of the pipe fitting through the spring. This facilitates the cleaning of the outer surface of the pipe fitting by the support plate 321, and the cross-section of the support plate 321 is arc-shaped.

[0043] Furthermore, a protective block 33 is fixedly installed between the two support columns 32. At the same time, a spraying member 34 is fixedly installed at the end of the protective block 33, and a driving member 35 is fixedly installed at the end of the protective block 33 and on one side of the spraying member 34.

[0044] Specifically, the spraying member 34 is composed of a nozzle and a pipe. The water mist is sprayed onto the outer surface of the pipe fitting during cutting through the nozzle, which is used to control the temperature of the outer surface of the pipe fitting and prevent the temperature of the pipe fitting from being too high during processing.

[0045] Furthermore, a driving plate 36 is fixedly installed at the output end of the driving member 35, and a moving rod 37 is fixedly installed at the end of the driving plate 36. At the same time, the end of the moving rod 37 penetrates and extends to the outside of the protective block 33.

[0046] 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, the driving plate 36 arranged at its output end is driven to move synchronously. Since the moving rod 37 is fixedly installed at the end of the driving plate 36, the moving rod 37 is driven to move when the driving plate 36 moves.

[0047] Furthermore, swing plates 38 are symmetrically and rotatably installed on the inner wall of the protective block 33. The end of the swing plate 38 penetrates and extends to the outside of the protective block 33, and a roller 381 is rotatably installed at the end of the swing plate 38.

[0048] Specifically, the end of the swing plate 38 is arc-shaped and is distributed on both sides of the moving rod 37. The pipe fitting is supported by the rollers 381 rotatably installed at the end of the swing plate 38, and at the same time, it is ensured that the pipe fitting remains stable as a whole when rotating. A spring is fixedly installed between the two swing plates 38 to limit the swing plate 38 through the spring.

[0049] Furthermore, connection blocks 371 are fixedly installed on both sides of the moving rod 37, and the outer surface of the connection block 371 is in contact with the outer surface of the swing plate 38.

[0050] Specifically, when the moving rod 37 moves, it synchronously drives the connection block 371 fixedly installed on its outer surface to move. Then, when the connection block 371 moves, the end of the swing plate 38 is squeezed, causing the swing plate 38 to rotate around the end of the protection block 33, so that the two rollers 381 move closer to the middle synchronously. When the connection block 371 moves in the reverse direction, the spring fixedly installed between the two swing plates 38 restores it to the initial position; this avoids the situation where chips come into contact with the workpiece surface again and cause scratches or indentations when the chips cannot be effectively cleaned up.

[0051] The control device can choose a single-chip microcomputer as the control terminal. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller, which is composed of an arithmetic unit, a controller, a memory, input and output devices, etc., and is equivalent to a miniature computer. Compared with the general-purpose microprocessor used in personal computers, it emphasizes more on self-supply (without external hardware) and cost savings. Its greatest advantage is its small size, which can be placed inside the instrument, but it has a small storage capacity, simple input and output interfaces, and low power consumption.

[0052] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A turning tooling for heat exchanger pipe fittings, characterized in that It includes an operating table (1). A support plate (11) is slidably installed at the end of the operating table (1). At the same time, a locking member (12) is fixedly installed at the end of the operating table (1). The pipe fitting is preliminarily fixed by the locking member (12). A protection assembly (2) is assembled at the end of the support plate (11). The pipe fitting is locked and supported by the cooperation of the protection assembly (2) and the locking member (12). A cleaning assembly (3) is assembled at the end of the support plate (11). The outer surface of the pipe fitting after cutting is cleaned by the cleaning assembly (3). Among them, the protection assembly (2) includes a fixed block (21) fixedly connected to the support plate (11). At the same time, a positioning plate (23) is fixedly installed at the end of the fixed block (21). A telescopic member (22) is fixedly installed at the middle position of the end of the fixed block (21). The output end of the telescopic member (22) penetrates and extends to the outside of the positioning plate (23). A telescopic plate (221) is fixedly installed at the output end of the telescopic member (22). A plurality of positioning rods (24) are rotatably installed 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 opened at the end of the positioning plate (23). The inner wall of the positioning groove (231) is slidably connected to the outer surface of the positioning rod (24). An activity rod (25) is rotatably installed at the end of the positioning rod (24). The outer surface of the activity 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 activity rod (25). A guide rod (28) is slidably installed at the end of the power block (251). An arc-shaped plate (281) is fixedly installed at the end of the guide rod (28). The inner wall of the pipe fitting is supported by the arc-shaped plate (281).

2. The turning tooling for heat exchanger pipe fittings according to claim 1, wherein, A docking plate (26) is fixedly installed at the end of the telescopic plate (221). At the same time, a bottom plate (27) is fixedly installed at the end of the docking plate (26). A guide groove (271) corresponding to the positioning rod (24) is opened on the inner wall of the bottom plate (27).

3. The turning tooling for heat exchanger pipe fittings according to claim 2, wherein, A guide block (282) is slidably installed on the inner wall of the guide groove (271). The end of the guide block (282) is fixedly connected to the end of the guide rod (28).

4. The turning tooling for heat exchanger pipe fittings according to claim 3, characterized in that, A support rod (292) is fixedly installed at the middle position of the end of the bottom plate (27). 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). 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).

5. A turning tooling for heat exchanger pipe fittings according to claim 4, characterized in that, A power rod (29) is rotatably installed at the end of the guide block (282). At the same time, the end of the power rod (29) far from the guide block (282) is rotatably connected to the end of the rotating block (291).

6. A turning tooling for heat exchanger pipe fittings according to claim 1, characterized in that, The cleaning component (3) includes a moving plate (31) slidably connected to the pallet (11). Support columns (32) are symmetrically and fixedly installed at the ends of the moving plate (31), and a support plate (321) is slidably installed at the ends of the support columns (32).

7. A turning tooling for heat exchanger pipe fittings according to claim 6, characterized in that, A protective block (33) is fixedly installed between the two support columns (32). At the same time, a spraying member (34) is fixedly installed at the end of the protective block (33), and a driving member (35) is fixedly installed at the end of the protective block (33) and on one side of the spraying member (34).

8. A turning tooling for heat exchanger pipe fittings according to claim 7, characterized in that, A driving plate (36) is fixedly installed at the output end of the driving member (35). A moving rod (37) is fixedly installed at the end of the driving plate (36). At the same time, the end of the moving rod (37) penetrates and extends to the outside of the protective block (33).

9. The turning tooling for heat exchanger pipe fittings according to claim 8, characterized in that, Swing plates (38) are symmetrically and rotatably installed on the inner wall of the protective block (33). The ends of the swing plates (38) penetrate and extend to the outside of the protective block (33). At the same time, rollers (381) are rotatably installed at the ends of the swing plates (38).

10. A turning tooling for heat exchanger pipe fittings according to claim 9, characterized in that, Connection blocks (371) are fixedly installed on both sides of the moving rod (37). The outer surface of the connection block (371) is in contact with the outer surface of the swing plate (38).

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