A cooling device and method for precision steel pipe production

Abstract

The present invention relates to the technical field of precision steel pipe production, and specifically to a cooling device and method for precision steel pipe production, comprising a support assembly, a cooling assembly, a transfer assembly and a clamping assembly, wherein the support assembly comprises a support box, a leg, a first support ring and a second support ring, wherein the support box is provided with a bearing cavity with an upper opening, and the first support ring is symmetrically provided with inverted L-shaped legs on the left and right sides, and the legs are provided on the side walls of the support box, and the second support ring is provided below the first support ring; a stable foundation is provided for the entire device by providing the support box and the leg, ensuring that the device will not shake during the cooling process of the steel pipe, thereby ensuring the stability of production; a motor drives the active gear to rotate through a rotating shaft, and the active gear meshes with the driven gear, thereby driving the transfer ring to rotate, and this transmission method has high precision, can ensure the uniform rotation of the steel pipe during the cooling process, and improve the uniformity of cooling.

Description

Technical Field

[0001] The present invention relates to the technical field of precision steel pipe production, and in particular to a cooling device and method for precision steel pipe production. Background Art

[0002] In the production of precision steel pipes, the cooling device can quickly reduce the temperature of the steel pipe, which is crucial to ensure the quality and performance of the steel pipe. Steel pipes at high temperatures may have problems such as deformation and uneven structure, and timely cooling by the cooling device can effectively avoid these problems.

[0003] If the steel pipe is cooled by immersion, the cooling effect on the subsequent materials will be different due to the different time sequence of the steel pipes entering, and the liquid will be heated by the heat of the steel pipes themselves, which makes it impossible to ensure the uniformity of quality.

[0004] Traditional steel pipe cooling often adopts the method of feeding and spraying materials at the same time. In this process, the surface of the steel pipe is cooled by a multi-angle spray device. However, the above structure still has the following problems:

[0005] 1. Affected by gravity, if the pressure of the output liquid is not enough, the output head located below cannot cool the lower part of the steel pipe;

[0006] 2. The sprinkler located under the steel pipe is easily blocked by debris generated during material transportation, making the equipment unstable;

[0007] 3. The blocked nozzle cannot cool the steel pipe evenly, which leads to uneven cooling and affects the quality of the product. Summary of the invention

[0008] Technical issues solved

[0009] In view of the deficiencies in the prior art, the present invention provides a cooling device and method for producing precision steel pipes.

[0010] Technical Solution

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A cooling device for precision steel pipe production, comprising a support assembly, a cooling assembly, a transfer assembly and a clamping assembly, wherein the support assembly comprises a support box, a leg, a first support ring and a second support ring, wherein the support box is provided with a bearing cavity with an upper opening, and the first support ring is symmetrically provided with inverted L-shaped legs on the left and right sides, wherein the legs are provided on the side walls of the support box, and the second support ring is provided below the first support ring;

[0012] The transfer assembly includes a motor, a rotating shaft, a driving tooth, a driven tooth and a transfer ring. The support box is provided with a rotating shaft that passes through the center of the second support ring, the rotating shaft is provided with a driving tooth, the inner side of the second support ring is provided with a driving cavity that matches the driving tooth, the inner side of the first support ring is provided with a transfer ring that is rotatably arranged, the outer side of the transfer ring is provided with a driven tooth that meshes with the driving tooth, and the inner side of the first support ring is provided with a driven cavity that matches the driven tooth;

[0013] The clamping assembly includes a first elastic member, a piston, an air pump, a support rod, an extension cover, a roller seat and a support roller. An annular cavity is arranged in the transfer ring, and a plurality of groups of extension covers that penetrate the cavity are arranged on the inner side of the transfer ring. A piston is arranged in the extension cover, and the piston is slidably connected to the inner wall of the extension cover. The two ends of the first elastic member are respectively connected to the piston and the inner wall of the cavity. A support rod that penetrates the extension cover is also arranged on the piston, and a roller seat is arranged on the support rod. A support roller for material transportation is rotatably arranged on the roller seat, and an arc surface is arranged at the center of the support roller. An air pump connected to the cavity is also arranged on the front of the transfer ring;

[0014] The cooling assembly includes a water tank, a water pump, a main pipe, a shunt pipe, an output ring and an output head. Several groups of brackets are arranged on the side of the first support ring away from the air pump. The output ring is connected to the bracket. Several groups of output heads are arranged on the inner wall of the output ring. The water tank is arranged on one side of the support box. One end of the water pump is connected to the water tank, and the other end of the water pump is connected to the main pipe through a connecting pipe. The main pipe is connected to the output ring through a shunt pipe.

[0015] In order to ensure the stability of the movement of the piston, the present invention is improved in that the first elastic member includes a spring and a telescopic rod, the spring is sleeved on the telescopic rod, and both ends of the spring and the telescopic rod are respectively connected to the piston and the inner wall of the cavity.

[0016] In order to ensure the stability of the movement of the support rod, the present invention is improved in that a protective cover slidably connected to the extension cover is further provided on the peripheral side of the roller seat.

[0017] Preferably, the motor is a servo motor.

[0018] In order to ensure the stability of the cylinder operation, the present invention is improved in that a battery compartment is further provided on the transfer ring, and a battery connected to the air pump is provided in the battery compartment.

[0019] In order to provide stable protection for the battery compartment and the air cylinder, the present invention has an improvement in that a protective component for protecting the battery compartment and the air pump is also provided on the transfer ring, and the protective component includes a guide frame, a connecting piece and a cover body. Guide frames are symmetrically provided on both sides of the battery compartment and the air pump, and the cover body has a protective cavity with an opening on the side away from the support roller. The cover body is slidably connected to the guide frame, and a connecting piece for positioning the cover body is also provided on the guide frame. A gap is left between the opening of the protective cavity and the battery compartment and the air pump.

[0020] In order to ensure the stability of the assembly of the cover body and the guide frame, the present invention is improved in that the guide frame is in an inverted T shape, and an inclined surface is provided at one end of the cover body close to the support roller.

[0021] In order to facilitate the disassembly and assembly of the cover body, the present invention is improved in that the connecting member includes a second elastic member and a clamping block, a movable groove is provided on the side wall of the lower part of the end of the guide frame away from the transfer ring, the connecting member is provided in the movable groove, two ends of the second elastic member are respectively connected to the inner wall of the movable groove and the clamping block, a clamping hole adapted to the clamping block is provided on the cover body, the clamping hole is provided at the end away from the center of the battery compartment, and the clamping block is provided with an inclined surface at the end close to the support roller.

[0022] Preferably, the air pump is also provided with a pressure gauge, and a display end of the pressure gauge is arranged at an end away from the supporting roller.

[0023] The present invention further provides a method for using a cooling device for precision steel pipe production, comprising the following steps:

[0024] Step 1, pre-set the pressure value of the air pump according to the produced steel pipe, the air pump inflates the cavity, the first elastic member stretches, the piston presses against the support rod, the support rod is provided with a roller seat, the support roller is rotatably connected with the roller seat, and the support roller clamps and supports the steel pipe to be cooled;

[0025] Step 2: The steel pipe to be cooled is fed under the support of the support roller, and the support roller rotates. At this time, the motor is started, and the motor drives the rotating shaft to rotate. The active gear on the rotating shaft cooperates with the driven gear to drive the transfer ring to rotate, and the steel pipe rotates accordingly;

[0026] Step 3, start the cooling component, and the output head sprays liquid to cool the rotating linear feed steel pipe;

[0027] Step 4: The coolant is finally collected by the support box and then transported and exported.

[0028] Beneficial Effects

[0029] Compared with the prior art, the present invention provides a cooling device and method for precision steel pipe production, which has the following beneficial effects:

[0030] The cooling device and method for precision steel pipe production provide a stable foundation for the entire device by setting a support box and legs, ensuring that the device will not shake during the steel pipe cooling process, thereby ensuring the stability of production;

[0031] The motor drives the active gear to rotate through the rotating shaft, and the active gear meshes with the driven gear, thereby driving the transfer ring to rotate. This transmission method has high precision and can ensure the uniform rotation of the steel pipe during the cooling process, thereby improving the uniformity of cooling;

[0032] The air pump inflates the cavity and pushes the piston through the first elastic member, so that the support roller on the support rod clamps the steel pipe to ensure the safety of the equipment. The support roller is provided with an arc surface, which can clamp the steel pipe and rotate with the rotating ring while ensuring the linear motion of the steel pipe, and then cooperate with the cooling component to perform uniform cooling. During the cooling process, even if the water pressure is insufficient and the output head below cannot supply liquid stably or the output head is blocked, the rotating linear feed steel pipe can still be evenly in contact with the coolant output by other output heads for uniform cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The first schematic diagram of the steel pipe assembly of the structure of the present invention;

[0034] Figure 2 A second schematic diagram of the steel pipe assembly of the structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0036] Figure 4 This is a schematic diagram of the assembly of the motor, rotating shaft and active gear of the structure of the present invention;

[0037] Figure 5 It is a partial explosion schematic diagram of the structure of the present invention;

[0038] Figure 6 The structure of the present invention Figure 5 Middle partial upward view schematic diagram;

[0039] Figure 7 The structure of the present invention Figure 6 A partial enlarged schematic diagram in the middle;

[0040] Figure 8 It is a cross-sectional schematic diagram of a rotating ring with a driven tooth and a clamping assembly of the structure of the present invention;

[0041] Fig. 9 The structure of the present invention Figure 8 Enlarged schematic diagram of point B in the middle.

[0042] In the figure: 1. support box; 2. support leg; 3. first support ring; 4. second support ring; 5. motor; 6. rotating shaft; 7. driving gear; 8. driven gear; 9. transfer ring; 10. piston; 11. air pump; 12. support rod; 13. extension cover; 14. roller seat; 15. support roller; 16. water tank; 17. water pump; 18. main pipe; 19. diverter pipe; 20. output ring; 21. output head; 22. bracket; 23. connecting pipe; 24. spring; 25. telescopic rod; 26. protective cover; 27. battery compartment; 28. guide frame; 29. ​​cover body; 30. second elastic member; 31. block; 32. pressure gauge. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 9 A cooling device for precision steel pipe production, comprising a support assembly, a cooling assembly, a transfer assembly and a clamping assembly, wherein the support assembly comprises a support box 1, a leg 2, a first support ring 3 and a second support ring 4, wherein the support box 1 is provided with a bearing cavity with an upper opening, and the first support ring 3 is symmetrically provided with an inverted L-shaped leg 2 on both sides thereof, and the leg 2 is provided on the side wall of the support box 1, and the second support ring 4 is provided below the first support ring 3;

[0045] The support box 1 provides stable support for the support legs 2, and the support legs 2 are used to stably support the first support ring 3 and the second support ring 4;

[0046] The transfer assembly includes a motor 5, a rotating shaft 6, a driving tooth 7, a driven tooth 8 and a transfer ring 9. The support box 1 is provided with a rotating shaft 6 that passes through the center of the second support ring 4. The rotating shaft 6 is provided with a driving tooth 7. The second support ring 4 is provided with a driving cavity matched with the driving tooth 7 on the inner side. The first support ring 3 is provided with a transfer ring 9 that is rotatably provided inside. The outer side of the transfer ring 9 is provided with a driven tooth 8 that meshes with the driving tooth 7. The first support ring 3 is provided with a driven cavity matched with the driven tooth 8 on the inner side.

[0047] The motor 5 is started. The servo motor 5 can accurately control the speed and direction. The motor 5 drives the rotating shaft 6 to rotate, and the active gear 7 on the rotating shaft 6 rotates accordingly. The active gear 7 rotates in the active cavity inside the second support ring 4 and meshes with the driven gear 8 outside the transfer ring 9, thereby driving the transfer ring 9 to rotate inside the first support ring 3. When the transfer ring 9 rotates, the cooperation between the driven gear 8 and the driven cavity inside the first support ring 3 ensures the stability of the rotation. The rotation of the transfer ring 9 drives the steel pipe clamped by the clamping assembly to rotate;

[0048] In this embodiment, the clamping assembly includes a first elastic member, a piston 10, an air pump 11, a support rod 12, an extension cover 13, a roller seat 14 and a support roller 15. An annular cavity is arranged in the transfer ring 9, and a plurality of groups of extension covers 13 that penetrate the cavity are arranged on the inner side of the transfer ring 9. A piston 10 is arranged in the extension cover 13, and the piston 10 is slidably connected to the inner wall of the extension cover 13. The two ends of the first elastic member are respectively connected to the piston 10 and the inner wall of the cavity. The piston 10 is also provided with a through hole. A support rod 12 passes through the extension cover 13, and a roller seat 14 is arranged on the support rod 12. A support roller 15 for material transportation is rotatably arranged on the roller seat 14, and an arc surface is arranged at the center of the support roller 15. An air pump 11 connected to the cavity is also arranged on the front of the transfer ring 9, and a pressure gauge 32 is also arranged on the air pump 11. The display end of the pressure gauge 32 is arranged at the end away from the support roller 15. After the pressure value of the air pump 11 is preset, the air pump 11 inflates the annular cavity in the transfer ring 9. As the gas is filled, the pressure in the cavity increases, pushing several groups of pistons 10 to slide in the extension cover 13, cooperating with the first elastic member to ensure the stability of the movement of the piston 10. Moreover, if a larger steel pipe enters, the first elastic member can also play a buffering protection to ensure the safety of the equipment. During the movement of the piston 10, the first elastic member (spring 24 sleeved on the telescopic rod 25) extends, the spring 24 provides elastic force, and the telescopic rod 25 ensures the linearity and stability of the movement of the piston 10. The piston 10 pushes the support rod 12, and the roller seat 14 on the support rod 12 drives the support roller 15 to approach the steel pipe until the support roller 15 clamps the steel pipe that needs to be cooled. The arc surface in the center of the support roller 15 fits better with the surface of the steel pipe to achieve stable clamping. At this time, the steel pipe can be stably fed in a straight line. At the same time, if the rotating ring rotates, the steel pipe can be fed in a straight line with the rotation;

[0049] With the stable feeding of the steel pipe, the cooling assembly includes a water tank 16, a water pump 17, a main pipe 18, a shunt pipe 19, an output ring 20 and an output head 21. The first support ring 3 is provided with a plurality of groups of brackets 22 on the side away from the air pump 11. The output ring 20 is connected to the bracket 22. The inner wall of the output ring 20 is provided with a plurality of groups of output heads 21. The water tank 16 is provided on one side of the support box 1. One end of the water pump 17 is connected to the water tank 16. The other end of the water pump 17 is connected to the main pipe 18 through a connecting pipe 23. The main pipe 18 is connected to the output ring 20 through a shunt pipe 19. The water pump 17 is started, and the water The pump 17 draws out the coolant in the water tank 16 and transports it to the main pipe 18 through the connecting pipe 23. The coolant in the main pipe 18 is diverted to the output ring 20 through the diversion pipe 19. The output head 21 on the output ring 20 sprays the coolant on the surface of the rotating linearly fed steel pipe to spray cool the steel pipe. At this time, the support frame is used to collect waste liquid. Since the steel pipe is fed linearly, even if the water pressure is insufficient and the output head 21 below cannot stably supply liquid or the output head 21 is blocked, the rotating linearly fed steel pipe can still be evenly in contact with the coolant output by other output heads 21, and the temperature is evenly reduced to ensure that the output material is evenly cooled.

[0050] During actual use, a protective cover 26 slidably connected to the extension cover 13 is also provided on the side of the roller seat 14. The protective cover 26 on the side of the roller seat 14 is slidably connected to the extension cover 13 to ensure the stability of the movement of the support rod 12 and prevent impurities from entering.

[0051] Since the air pump 11 moves with the transfer tube, in order to avoid wiring, in this embodiment, a battery compartment 27 is also provided on the transfer ring 9, and a battery connected to the air pump 11 is provided in the battery compartment 27, and the battery supplies energy for the air pump 11.

[0052] If the air pump 11 and the battery compartment 27 are directly exposed to the outside, they are also susceptible to falling debris. For this reason, the transfer ring 9 is also provided with a protective assembly for protecting the battery compartment 27 and the air pump 11. The protective assembly includes a guide frame 28, a connector and a cover 29. The guide frames 28 are symmetrically provided on both sides of the battery compartment 27 and the air pump 11. The cover 29 has a protective cavity with an opening on the side away from the support roller 15. The cover 29 is slidably connected to the guide frame 28. The guide frame 28 is also provided with a connector for positioning the cover 29. A gap is left between the opening of the protective cavity and the battery compartment 27 and the air pump 11. The guide frame 28 is in an inverted T shape, and the cover 29 is provided with an inclined surface at one end close to the support roller 15. The connecting member includes a second elastic member 30 and a block 31. The lower side wall of the guide frame 28 away from the transfer ring 9 is provided with a movable groove, and the connecting member is provided in the movable groove. The two ends of the second elastic member 30 are respectively connected to the inner wall of the movable groove and the block 31. The cover body 29 is provided with a card hole adapted to the block 31, and the card hole is provided at the end away from the center of the battery compartment 27. The block 31 is provided with an inclined surface at the end close to the support roller 15. When the air pump 11 and the battery compartment 27 are directly exposed to the outside and are easily affected by falling debris, the protective component begins to work. The protective cavity on the cover body 29 is opposite to the support roller 15, and the opening faces the direction away from the support roller 15. The cover body 29 can move on the guide frame 28 by slidingly connecting with the guide frame 28 symmetrically arranged on both sides, thereby achieving coverage and protection of the battery compartment 27 and the air pump 11. There is a gap between the opening of the protective cavity and the battery compartment 27 and the air pump 11, which can ensure that the cover body 29 can slide and cover smoothly, and will not collide with the battery compartment 27 and the air pump 11 after covering, playing a role of safety protection, preventing the falling debris from directly hitting the air pump 11 and the battery compartment 27, not affecting the air intake of the air pump 11, and not affecting the staff's observation of the pressure gauge 32. The guide frame 28 is in an inverted T shape. On the one hand, this shape provides a stable track for the sliding of the cover body 29, ensuring that the cover body 29 maintains a straight and stable state during the movement, and will not deviate or shake. On the other hand, the inverted T-shaped design also increases the strength and stability of the guide frame 28, which can withstand certain external force impacts, ensuring that it will not be deformed or damaged due to external forces during the working process. When the cover body 29 slides to a certain position, the card hole on the cover body 29 is aligned with the card block 31. At this time, the second elastic member 30 releases the elastic force, pushing the card block 31 into the card hole, thereby realizing the positioning of the cover body 29.In this way, the cover body 29 is firmly fixed in the protective position, providing continuous and stable protection for the battery compartment 27 and the air pump 11. When the cover body 29 needs to be opened for maintenance or inspection, it is only necessary to apply an external force to the block 31 so that it overcomes the elastic force of the second elastic member 30 and withdraws from the card hole, and the cover body 29 can be slid open along the guide frame 28. The inclined surface of the cover body 29 prevents debris from accumulating, and the inclined surface of the block 31 ensures the stability of the cover body 29 when inserted into the guide frame 28.

[0053] The present invention further provides a method for using a cooling device for precision steel pipe production, comprising the following steps:

[0054] Step 1: First, pre-set the pressure value of the air pump 11 according to the specifications of the produced steel pipe so that the clamping assembly clamps the steel pipe;

[0055] Step 2: The steel pipe is fed under the support of the support roller 15, and the support roller 15 rotates to reduce the resistance of the steel pipe feeding. At the same time, the motor 5 is started to drive the steel pipe to rotate through the transfer assembly;

[0056] Step 3, then start the cooling assembly, and the coolant is sprayed out from the output head 21 to fully cool the rotating steel pipe;

[0057] Step 4: The cooled coolant finally falls into the bearing cavity of the support box 1 and is collected, and then transported and output in a centralized manner, so as to realize the recycling or treatment of the coolant.

[0058] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

Claims

1. A cooling device for precision steel pipe production, comprising a support assembly, a cooling assembly, a transfer assembly and a clamping assembly, characterized in that: The support assembly comprises a support box (1), support legs (2), a first support ring (3) and a second support ring (4); the support box (1) is provided with a bearing cavity with an upper opening; the first support ring (3) is symmetrically provided with inverted L-shaped support legs (2) on the left and right sides; the support legs (2) are provided on the side walls of the support box (1); and the second support ring (4) is provided below the first support ring (3); The transfer assembly comprises a motor (5), a rotating shaft (6), a driving tooth (7), a driven tooth (8) and a transfer ring (9); the support box (1) is provided with a rotating shaft (6) which passes through the center of the second support ring (4); the rotating shaft (6) is provided with a driving tooth (7); the second support ring (4) is provided with a driving cavity which matches the driving tooth (7); the transfer ring (9) is rotatably provided inside the first support ring (3); the outer side of the transfer ring (9) is provided with a driven tooth (8) which meshes with the driving tooth (7); the inner side of the first support ring (3) is provided with a driven cavity which matches the driven tooth (8); The clamping assembly comprises a first elastic member, a piston (10), an air pump (11), a support rod (12), an extension cover (13), a roller seat (14) and a support roller (15); an annular cavity is arranged inside the transfer ring (9); a plurality of groups of extension covers (13) penetrating the cavity are arranged inside the transfer ring (9); a piston (10) is arranged inside the extension cover (13); the piston (10) is slidably connected to the inner wall of the extension cover (13); two ends of the first elastic member are respectively connected to the piston (10) and the inner wall of the cavity; a support rod (12) penetrating the extension cover (13) is also arranged on the piston (10); a roller seat (14) is arranged on the support rod (12); a support roller (15) for material transportation is rotatably arranged on the roller seat (14); a curved surface is arranged at the center of the support roller (15); an air pump (11) connected to the cavity is also arranged on the front of the transfer ring (9); The cooling assembly comprises a water tank (16), a water pump (17), a main flow pipe (18), a shunt pipe (19), an output ring (20) and an output head (21); a plurality of groups of brackets (22) are arranged on a side of the first support ring (3) away from the air pump (11); the output ring (20) is connected to the bracket (22); a plurality of groups of output heads (21) are arranged on an inner wall of the output ring (20); the water tank (16) is arranged on one side of the support box (1); one end of the water pump (17) is connected to the water tank (16); the other end of the water pump (17) is connected to the main flow pipe (18) via a connecting pipe (23); and the main flow pipe (18) is connected to the output ring (20) via a shunt pipe (19).

2. A cooling device for precision steel pipe production according to claim 1, characterized in that: The first elastic member comprises a spring (24) and a telescopic rod (25), the spring (24) being sleeved on the telescopic rod (25), and both ends of the spring (24) and the telescopic rod (25) being respectively connected to the piston (10) and the inner wall of the cavity.

3. A cooling device for precision steel pipe production according to claim 2, characterized in that: A protective cover (26) is also provided on the circumferential side of the roller seat (14) and is slidably connected to the extension cover (13).

4. A cooling device for precision steel pipe production according to claim 3, characterized in that: The motor (5) is a servo motor.

5. A cooling device for precision steel pipe production according to claim 4, characterized in that: The transfer ring (9) is also provided with a battery compartment (27), and a storage battery connected to the air pump (11) is provided in the battery compartment (27).

6. A cooling device for precision steel pipe production according to claim 5, characterized in that: The transfer ring (9) is also provided with a protection component for protecting the battery compartment (27) and the air pump (11), the protection component comprising a guide frame (28), a connecting piece and a cover body (29), the guide frames (28) being symmetrically provided on both sides of the battery compartment (27) and the air pump (11), the cover body (29) having an opening on the side away from the support roller (15), the cover body (29) being slidably connected to the guide frame (28), the guide frame (28) also being provided with a connecting piece for positioning the cover body (29), and a gap being left between the opening of the protection cavity and the battery compartment (27) and the air pump (11).

7. A cooling device for precision steel pipe production according to claim 6, characterized in that: The guide frame (28) is in an inverted T-shape, and an inclined surface is provided at one end of the cover body (29) close to the support roller (15).

8. A cooling device for precision steel pipe production according to claim 7, characterized in that: The connecting member comprises a second elastic member (30) and a clamping block (31); a movable groove is provided on a side wall of a lower portion of an end of the guide frame (28) away from the transfer ring (9); the connecting member is provided in the movable groove; two ends of the second elastic member (30) are respectively connected to the inner wall of the movable groove and the clamping block (31); a clamping hole adapted to the clamping block (31) is provided on the cover body (29); the clamping hole is provided at an end away from the center of the battery compartment (27); and an inclined surface is provided on an end of the clamping block (31) close to the support roller (15).

9. A cooling device for precision steel pipe production according to claim 8, characterized in that: The air pump (11) is also provided with a pressure gauge (32), and a display end of the pressure gauge (32) is provided at an end away from the support roller (15).

10. A method for using a cooling device for precision steel tube production, comprising a cooling device for precision steel tube production as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step 1: presetting the pressure value of the air pump (11) according to the steel pipe to be produced, the air pump (11) inflates the cavity, the first elastic member extends, the piston (10) abuts against the support rod (12), a roller seat (14) is provided on the support rod (12), the support roller (15) is rotatably connected to the roller seat (14), and the support roller (15) clamps and supports the steel pipe to be cooled; Step 2: The steel pipe to be cooled is fed under the support of the support roller (15), and the support roller (15) rotates. At this time, the motor (5) is started, and the motor (5) drives the rotating shaft (6) to rotate. The driving gear (7) on the rotating shaft (6) cooperates with the driven gear (8) to drive the transfer ring (9) to rotate, and the steel pipe rotates accordingly; Step 3, start the cooling assembly, and the output head (21) sprays liquid to cool the rotating linearly fed steel pipe; Step 4: The coolant is finally collected by the support box (1) and then transported and output.

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