Broaching machining device for air conditioner refrigeration copper pipe

By designing a cutoff and reaming mechanism suitable for air-conditioning refrigeration copper pipes, the problem that existing equipment cannot accurately control the reaming size is solved, the accuracy and consistency of copper pipe reaming is achieved, and the quality and efficiency of the air-conditioning system are improved.

CN223146547UActive Publication Date: 2025-07-25TIANJIN JUNTENG CONSTR ENG TECH CO LTD
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Patent Information

Application Number
CN202422419750.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-07-25
Estimated Expiration
2034-10-08

AI Technical Summary

Technical Problem

The existing air-conditioning refrigerated copper pipe reaming processing equipment lacks reasonable cutoff and reaming mechanism, resulting in different models and specifications that cannot accurately control the reaming size, affecting the perfect coordination with other components, increasing leakage risk, reducing the performance and stability of the air-conditioning system, and relying on manual operation and inefficient efficiency.

Method used

An air-conditioned refrigerated copper tube reaming processing device including a cutoff mechanism and a reaming mechanism is designed. The pipe knife and reaming drill bit driven by a servo motor are used to combine the screw and plywood structure to achieve accurate cutting and reaming of the copper tube, adapting to different models and specifications to ensure consistency in reaming.

Benefits of technology

Accurate hole expansion of different models of copper pipes is achieved, reducing leakage risks, improving the performance and stability of the air conditioning system, saving time and labor costs, and ensuring consistency of hole expansion results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related technical field of air conditioner refrigeration copper pipe chambering machining equipment, in particular to an air conditioner refrigeration copper pipe chambering machining device which comprises a fixing plate, one end of the fixing plate is fixedly connected with a first side box, and one end of the fixing plate is provided with a cut-off mechanism. When the air conditioner refrigeration copper pipe needs to be reamed, the pipe opening of the flat and deformed copper pipe can be placed between the two sets of miniature rollers in advance according to actual requirements, then a handle of a first lead screw is rotated, the rotation of the first lead screw can drive a first fixing block to move, distance scales are engraved on a first side box, and the first fixing block can move along with the distance scales. The broaching distance of the broaching drill bit to the copper pipe can be judged by observing the moving distance of the pointer, the first clamping plate can adapt to the sizes of the copper pipes of different models through the arrangement of the first clamping plate, and therefore the difference caused by human factors is avoided, and the time and labor cost are saved through the arrangement of the second clamping plate; and the quality of the whole air conditioning system is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning refrigeration copper pipe reaming processing equipment, in particular to a reaming processing device for air-conditioning refrigeration copper pipes. Background Technique

[0002] In the air-conditioning refrigeration copper pipe reaming processing equipment, in the air-conditioning refrigeration system, the copper pipe plays a crucial role. It is responsible for transporting the refrigerant. In actual applications, different specifications and models of air conditioners may require copper pipes of specific sizes for connection. Through reaming processing, the copper pipe can be adapted to various connection fittings to meet the requirements of different installation scenarios and system designs. At the same time, a good reaming process can enhance the reliability of the copper pipe connection and avoid failures caused by poor connection during operation. With the continuous development and update of air-conditioning technology, the quality requirements for copper pipe connections are getting higher and higher, and the reaming processing technology is also constantly progressing and improving to adapt to more complex system structures and higher performance standards. Therefore, there is a particular need for a reaming processing device for air-conditioning refrigeration copper pipes.

[0003] However, in the existing air-conditioning refrigeration copper pipe reaming processing equipment, during use, due to the lack of a reasonable truncation mechanism and reaming mechanism inside the air-conditioning refrigeration copper pipe reaming processing equipment, when reaming the air-conditioning refrigeration copper pipe, when the model specifications of the air-conditioning refrigeration copper pipe are different, the reaming size cannot be accurately controlled to ensure perfect fit with other components, increasing the leakage risk, reducing the performance and stability of the air-conditioning system. Manual operation is often required, greatly reducing the reaming speed, wasting time and labor costs, and unable to ensure that the results of each reaming are basically the same, resulting in differences caused by human factors and affecting the quality of the entire air-conditioning system. Content of the Utility Model

[0004] The purpose of the utility model is to provide a reaming processing device for air-conditioning refrigeration copper pipes to solve the problems in the above background technique that in the existing air-conditioning refrigeration copper pipe reaming processing equipment, during use, due to the lack of a reasonable truncation mechanism and reaming mechanism inside the air-conditioning refrigeration copper pipe reaming processing equipment, when reaming the air-conditioning refrigeration copper pipe, when the model specifications of the air-conditioning refrigeration copper pipe are different, the reaming size cannot be accurately controlled to ensure perfect fit with other components, increasing the leakage risk, reducing the performance and stability of the air-conditioning system. Manual operation is often required, greatly reducing the reaming speed, wasting time and labor costs, and unable to ensure that the results of each reaming are basically the same, resulting in differences caused by human factors and affecting the quality of the entire air-conditioning system.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A reaming processing device for an air-conditioning refrigeration copper pipe, comprising a fixing plate, one end of the fixing plate is fixedly connected with a first side box, a cutting mechanism is arranged at one end of the fixing plate, and a reaming mechanism is arranged at one end of the fixing plate;

[0006] The cutting mechanism includes a fixing table, a first sliding groove, a first sliding block, a first connecting block, a first servo motor, a first transmission shaft, a pipe cutter, a first fixing block, a first lead screw, a first fixing support, a second fixing block and a micro roller. One end of the fixing plate is fixedly connected with a fixing table. A first sliding groove is formed on the surface of one end of the fixing table. The first sliding groove is slidably connected with a first sliding block. One end of the first sliding block is fixedly connected with a first connecting block. One end of the first connecting block is fixedly connected with a first servo motor. The output end of the first servo motor is fixedly connected with a first transmission shaft. One end of the first transmission shaft is fixedly connected with a pipe cutter. One side of the pipe cutter is connected to a first fixing block through a bearing. One side of the first fixing block is connected to a first lead screw through a bearing. The surface of one side of the first lead screw is threadedly connected with a first fixing support. One end of the fixing table is fixedly connected with a second fixing block. One side of the second fixing block is fixedly connected with a micro roller.

[0007] Preferably, the pipe cutter is slidably connected to the fixing table through the first sliding groove, the first sliding block, the first connecting block, the first fixing block, the first lead screw and the first fixing support. The pipe cutter forms a rotating structure with the first fixing block through the first servo motor and the first transmission shaft.

[0008] Preferably, two groups of micro rollers are provided.

[0009] Preferably, the hole expanding mechanism includes a second sliding groove, a second sliding block, a second connecting block, a fixed shaft, a first clamping plate, a second clamping plate, a third sliding groove, a fourth sliding groove, a third sliding block, a second side box, a second servo motor, a third connecting block, a pointer, a second lead screw, a hole expanding drill bit, a second fixed support, a sliding clamping block, and a third lead screw. One end of the fixing plate is provided with a second sliding groove, and the surface of the second sliding groove is slidably connected with a second sliding block. One end of the second sliding block is fixedly connected with a second connecting block, and one end of the second connecting block is fixedly connected with a fixed shaft. One end of the second connecting block is fixedly connected with a first clamping plate, and one side of the surface of the fixed shaft is rotatably connected with a second clamping plate. Both sides of the inner wall surface of the first side box are provided with third sliding grooves, and one end of the surface of the first side box is provided with a fourth sliding groove. The surface of the third sliding groove is slidably connected with a third sliding block, and one side of the third sliding block is fixedly connected with a second side box. The inner surface of the second side box is fixedly connected with a second servo motor, one side of the second servo motor is fixedly connected with a third connecting block, and one end of the third connecting block is fixedly connected with a pointer. The output end of the second servo motor is fixedly connected with a second lead screw, and the other end of the second lead screw is fixedly connected with a hole expanding drill bit. One side of the surface of the second lead screw is threadedly connected with a second fixed support, one side of the second fixed support is slidably connected with a sliding clamping block, and one end of the second fixed support is connected with a third lead screw through a bearing.

[0010] Preferably, the pointer is slidably connected with the fourth sliding groove. The first clamping plate is provided with an opening structure, and the openings gradually become larger in sequence.

[0011] Preferably, the second clamping plate itself has a porous structure.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: For the hole expanding processing device of the air-conditioning refrigeration copper pipe, by reasonably arranging a cutting-off mechanism and a hole expanding mechanism inside, when expanding the hole of the air-conditioning refrigeration copper pipe, when the model specifications of the air-conditioning refrigeration copper pipe are different, the hole expanding size can be accurately controlled to ensure perfect cooperation with other components, reduce the leakage risk, improve the performance and stability of the air-conditioning system. Compared with manual operation, the hole expanding speed is greatly increased, time and labor costs are saved, the result of each hole expansion can be ensured to be basically the same, differences caused by human factors can be avoided, and the quality of the entire air-conditioning system is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic side view external structure diagram of the present invention;

[0014] Figure 2 It is a schematic structure diagram of a part of the cutting-off mechanism of the present invention;

[0015] Figure 3Schematic diagram of the mutual cooperation structure of the partial truncation mechanism and the hole expanding mechanism of the present utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged structure schematic diagram at position A in it.

[0017] In the figure: 1, fixed plate; 2, first side box; 3, truncation mechanism; 301, fixed table; 302, first sliding groove; 303, first sliding block; 304, first connecting block; 305, first servo motor; 306, first transmission shaft; 307, pipe cutter; 308, first fixing block; 309, first lead screw; 310, first fixed support; 311, second fixing block; 312, micro roller; 4, hole expanding mechanism; 401, second sliding groove; 402, second sliding block; 403, second connecting block; 404, fixed shaft; 405, first clamping plate; 406, second clamping plate; 407, third sliding groove; 408, fourth sliding groove; 409, third sliding block; 410, second side box; 411, second servo motor; 412, third connecting block; 413, pointer; 414, second lead screw; 415, hole expanding drill bit; 416, second fixed support; 417, sliding clamping block; 418, third lead screw. Specific implementation manners

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: a hole expanding processing device for air-conditioning refrigeration copper pipes, including a fixed plate 1, one end of the fixed plate 1 is fixedly connected with a first side box 2, one end of the fixed plate 1 is provided with a truncation mechanism 3, and one end of the fixed plate 1 is provided with a hole expanding mechanism 4;

[0020] The truncation mechanism 3 includes a fixed platform 301, a first sliding groove 302, a first sliding block 303, a first connecting block 304, a first servo motor 305, a first transmission shaft 306, a pipe cutter 307, a first fixing block 308, a first lead screw 309, a first fixed support 310, a second fixing block 311 and a micro roller 312. One end of the fixing plate 1 is fixedly connected to the fixed platform 301. A first sliding groove 302 is formed on the surface of one end of the fixed platform 301. The first sliding groove 302 is slidably connected with a first sliding block 303. One end of the first sliding block 303 is fixedly connected to a first connecting block 304. One end of the first connecting block 304 is fixedly connected to a first servo motor 305. The output end of the first servo motor 305 is fixedly connected to a first transmission shaft 306. One end of the first transmission shaft 306 is fixedly connected to a pipe cutter 307. One side of the pipe cutter 307 is connected to a first fixing block 308 by a bearing. One side of the first fixing block 308 is connected to a first lead screw 309 by a bearing. The surface of one side of the first lead screw 309 is threadedly connected to a first fixed support 310. One end of the fixed platform 301 is fixedly connected to a second fixing block 311. One side of the second fixing block 311 is fixedly connected to a micro roller 312. During use, when it is necessary to ream the air-conditioning refrigeration copper pipe, the flattened and deformed copper pipe nozzle can be placed between the two micro rollers 312 in advance according to actual needs. Then, by turning the handle of the first lead screw 309, the rotation of the first lead screw 309 will drive the first fixing block 308 to move. The movement of the first fixing block 308 will drive the pipe cutter 307 to slowly approach the copper pipe. When the pipe cutter 307 is in contact with and abuts against the copper pipe, start the first servo motor 305. The first servo motor 305 will drive the first transmission shaft 306 to rotate. The rotation of the first transmission shaft 306 will drive the pipe cutter 307 to rotate. The rotation of the pipe cutter 307 will cut the copper pipe. At this time, the copper pipe can be slowly rotated to cut out a flat and intact incision for subsequent reaming processing.

[0021] Further, the pipe cutter 307 is slidably connected to the fixed platform 301 through the first sliding groove 302, the first sliding block 303, the first connecting block 304, the first fixing block 308, the first lead screw 309 and the first fixed support 310. The pipe cutter 307 and the first fixing block 308 form a rotating structure through the first servo motor 305 and the first transmission shaft 306. Through the settings of the pipe cutter 307, the first sliding groove 302, the first sliding block 303, the first connecting block 304, the first fixing block 308, the first lead screw 309, the first fixed support 310 and the fixed platform 301, the pipe cutter 307 can adapt to copper pipes of different models to facilitate the cutting work of the copper pipe and lay a foundation for accurately controlling the reaming size. Through the settings of the pipe cutter 307, the first servo motor 305, the first transmission shaft 306 and the first fixing block 308, the pipe cutter 307 can cut the copper pipe smoothly. Compared with manual operation, the speed and quality of cutting the copper pipe are greatly improved.

[0022] Furthermore, two sets of micro rollers 312 are provided. By providing two sets of micro rollers 312, the copper tube can rotate slowly during the cutting process, which is beneficial to improving the cutting efficiency of the copper tube.

[0023] Further, the hole expanding mechanism 4 includes a second sliding groove 401, a second sliding block 402, a second connecting block 403, a fixed shaft 404, a first clamping plate 405, a second clamping plate 406, a third sliding groove 407, a fourth sliding groove 408, a third sliding block 409, a second side box 410, a second servo motor 411, a third connecting block 412, a pointer 413, a second lead screw 414, a hole expanding drill bit 415, a second fixed support 416, a sliding clamping block 417 and a third lead screw 418. A second sliding groove 401 is opened at one end of the fixing plate 1. The surface of the second sliding groove 401 is slidably connected with a second sliding block 402. One end of the second sliding block 402 is fixedly connected with a second connecting block 403. One end of the second connecting block 403 is fixedly connected with a fixed shaft 404. One end of the second connecting block 403 is fixedly connected with a first clamping plate 405. One side of the surface of the fixed shaft 404 is rotatably connected with a second clamping plate 406. Third sliding grooves 407 are opened on both sides of the inner wall surface of the first side box 2. A fourth sliding groove 408 is opened at one end of the surface of the first side box 2. The surface of the third sliding groove 407 is slidably connected with a third sliding block 409. One side of the third sliding block 409 is fixedly connected with a second side box 410. The surface of the inside of the second side box 410 is fixedly connected with a second servo motor 411. One side of the second servo motor 411 is fixedly connected with a third connecting block 412. One end of the third connecting block 412 is fixedly connected with a pointer 413. The output end of the second servo motor 411 is fixedly connected with a second lead screw 414. The other end of the second lead screw 414 is fixedly connected with a hole expanding drill bit 415. One side of the surface of the second lead screw 414 is threadedly connected with a second fixed support 416. One side of the second fixed support 416 is slidably connected with a sliding clamping block 417. One end of the second fixed support 416 is connected with a third lead screw 418 by a bearing. During the use process, when it is necessary to expand the hole of the air-conditioning refrigeration copper pipe, the copper pipe with the cut pipe orifice can be placed on the first clamping plate 405 according to the model. At this time, it should be noted that the copper pipe needs to extend out of the first clamping plate 405 by a certain distance to ensure that the copper pipe can be normally expanded. Then, close the second clamping plate 406, and then slide the first clamping plate 405, the second clamping plate 406 together with the second connecting block 403 to the second fixed support 416. Determine the positioning hole on the second clamping plate 406 according to the position of the copper pipe, and then manually rotate the handle of the third lead screw 418. The rotation of the third lead screw 418 will drive the sliding clamping block 417 to move. When the sliding clamping block 417 moves to fit with the second clamping plate 406, stop rotating the handle of the third lead screw 418, so as to complete the fixation of the first clamping plate 405 and the second clamping plate 406. Then, start the second servo motor 411. The start of the second servo motor 411 will drive the second lead screw 414 to rotate. The rotation of the second lead screw 414 will drive the second side box 410 to slide in the first side box 2. At the same time, the rotation of the second lead screw 414 will drive the hole expanding drill bit 415 to rotate and move. When the hole expanding drill bit 415 contacts the opening of the copper pipe,That is, the reaming of the copper tube starts, thus achieving the purpose of reaming the refrigerant copper tube of the air conditioner.

[0024] Furthermore, the pointer 413 is slidably connected to the fourth sliding groove 408. The first clamping plate 405 is provided with an opening structure, and the openings gradually increase in size. Through the arrangement of the pointer 413 and the fourth sliding groove 408, distance scales are engraved on the first side box 2. The reaming distance of the copper tube by the reaming drill bit 415 can be judged by observing the moving distance of the pointer 413, so that the reaming distance can be accurately controlled. Through the arrangement of the first clamping plate 405, the first clamping plate 405 can be adapted to the copper tube sizes of different models, thus avoiding the differences caused by human factors.

[0025] Furthermore, the second clamping plate 406 itself is a porous structure. Through the arrangement of the second clamping plate 406, it is beneficial for the second fixed support 416 to quickly and accurately fix the second clamping plate 406, thus saving time and labor costs.

[0026] Working principle: During use, when it is necessary to ream the refrigerant copper pipe of the air conditioner, the flattened and deformed pipe orifice of the copper pipe can be placed between two groups of micro rollers 312 in advance according to actual requirements. Then, by turning the handle of the first lead screw 309, the rotation of the first lead screw 309 will drive the first fixing block 308 to move. The movement of the first fixing block 308 will drive the pipe cutter 307 to slowly approach the copper pipe. When the pipe cutter 307 touches and presses against the copper pipe, start the first servo motor 305. The first servo motor 305 will drive the first transmission shaft 306 to rotate. The rotation of the first transmission shaft 306 will drive the pipe cutter 307 to rotate. The rotation of the pipe cutter 307 will cut the copper pipe. At this time, the copper pipe can be slowly rotated to make the copper pipe cut out a flat and intact incision for subsequent reaming processing. During use, when it is necessary to ream the refrigerant copper pipe of the air conditioner, the copper pipe with the cut orifice can be placed on the first clamping plate 405 according to the model. At this time, it should be noted that the copper pipe needs to extend out of the first clamping plate 405 by a certain distance to ensure that the copper pipe can be reamed normally. Then, close the second clamping plate 406, and then slide the first clamping plate 405, the second clamping plate 406 together with the second connecting block 403 to the second fixed support 416. Determine the positioning hole on the second clamping plate 406 according to the position of the copper pipe. Then, manually turn the handle of the third lead screw 418. The rotation of the third lead screw 418 will drive the sliding clamp block 417 to move. When the sliding clamp block 417 moves to fit with the second clamping plate 406, stop turning the handle of the third lead screw 418, thus completing the fixation of the first clamping plate 405 and the second clamping plate 406. Then, start the second servo motor 411. The start of the second servo motor 411 will drive the second lead screw 414 to rotate. The rotation of the second lead screw 414 will drive the second side box 410 to slide in the first side box 2. At the same time, the rotation of the second lead screw 414 will drive the reaming drill bit 415 to rotate and move. When the reaming drill bit 415 contacts the opening of the copper pipe, the reaming of the copper pipe will start, thus achieving the purpose of reaming the refrigerant copper pipe of the air conditioner. Through the setting of the pointer 413 and the fourth sliding groove 408, distance scales are engraved on the first side box 2. The reaming distance of the reaming drill bit 415 on the copper pipe can be judged by observing the moving distance of the pointer 413, so that the reaming distance can be accurately controlled. Through the setting of the first clamping plate 405, the first clamping plate 405 can adapt to the copper pipe sizes of different models, thus avoiding differences caused by human factors. Through the setting of the second clamping plate 406, it is beneficial for the second fixed support 416 to quickly and accurately fix the second clamping plate 406, thus saving time and labor costs and greatly improving the quality of the entire air conditioning system.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An expanding hole processing device for an air-conditioning refrigeration copper pipe, comprising a fixing plate (1), characterized in that: One end of the fixed plate (1) is fixedly connected to a first side box (2). A cutting mechanism (3) is arranged at one end of the fixed plate (1), and a hole expanding mechanism (4) is arranged at one end of the fixed plate (1). The cutting mechanism (3) includes a fixed table (301), a first sliding groove (302), a first sliding block (303), a first connecting block (304), a first servo motor (305), a first transmission shaft (306), a pipe cutter (307), a first fixing block (308), a first lead screw (309), a first fixed support (310), a second fixing block (311) and a micro roller (312). One end of the fixed plate (1) is fixedly connected to the fixed table (301). A first sliding groove (302) is formed on the surface of one end of the fixed table (301). The first sliding block (303) is slidably connected to the surface of the first sliding groove (302). One end of the first sliding block (303) is fixedly connected to the first connecting block (304). One end of the first connecting block (304) is fixedly connected to the first servo motor (305). The output end of the first servo motor (305) is fixedly connected to the first transmission shaft (306). One end of the first transmission shaft (306) is fixedly connected to the pipe cutter (307). One side of the pipe cutter (307) is connected to the first fixing block (308) through a bearing. One side of the first fixing block (308) is connected to the first lead screw (309) through a bearing. The first fixed support (310) is threadedly connected to the surface of one side of the first lead screw (309). One end of the fixed table (301) is fixedly connected to the second fixing block (311). One side of the second fixing block (311) is fixedly connected to the micro roller (312).

2. The reaming processing device for an air-conditioning refrigeration copper pipe according to claim 1, wherein: The pipe cutter (307) is slidably connected to the fixed table (301) through the first sliding groove (302), the first sliding block (303), the first connecting block (304), the first fixing block (308), the first lead screw (309) and the first fixed support (310). The pipe cutter (307) and the first fixing block (308) form a rotating structure through the first servo motor (305) and the first transmission shaft (306).

3. The reaming processing device for an air-conditioning refrigeration copper pipe according to claim 1, wherein: The micro rollers (312) are arranged in two groups.

4. An expanding hole processing device for an air-conditioning refrigeration copper tube according to claim 1, characterized in that: The reaming mechanism (4) includes a second sliding groove (401), a second sliding block (402), a second connecting block (403), a fixed shaft (404), a first clamping plate (405), a second clamping plate (406), a third sliding groove (407), a fourth sliding groove (408), a third sliding block (409), a second side box (410), a second servo motor (411), a third connecting block (412), a pointer (413), a second lead screw (414), a reaming bit (415), a second fixed support (416), a sliding clamping block (417) and a third lead screw (418). One end of the fixed plate (1) is provided with a second sliding groove (401). The surface of the second sliding groove (401) is slidably connected with a second sliding block (402). One end of the second sliding block (402) is fixedly connected with a second connecting block (403). One end of the second connecting block (403) is fixedly connected with a fixed shaft (404). One end of the second connecting block (403) is fixedly connected with a first clamping plate (405). One side of the surface of the fixed shaft (404) is rotatably connected with a second clamping plate (406). Both sides of the inner wall surface of the first side box (2) are provided with third sliding grooves (407). One end of the surface of the first side box (2) is provided with a fourth sliding groove (408). The surface of the third sliding groove (407) is slidably connected with a third sliding block (409). One side of the third sliding block (409) is fixedly connected with a second side box (410). The inner surface of the second side box (410) is fixedly connected with a second servo motor (411). One side of the second servo motor (411) is fixedly connected with a third connecting block (412). One end of the third connecting block (412) is fixedly connected with a pointer (413). The output end of the second servo motor (411) is fixedly connected with a second lead screw (414). The other end of the second lead screw (414) is fixedly connected with a reaming bit (415). One side of the surface of the second lead screw (414) is threadedly connected with a second fixed support (416). One side of the second fixed support (416) is slidably connected with a sliding clamping block (417). One end of the second fixed support (416) is connected with a third lead screw (418) through a bearing.

5. The reaming processing device for an air-conditioning refrigeration copper tube according to claim 4, characterized in that: The pointer (413) is slidably connected with the fourth sliding groove (408). The first clamping plate (405) is provided with an opening structure, and the openings gradually become larger in sequence.

6. The reaming processing device for an air-conditioning refrigeration copper pipe according to claim 4, characterized in that: The second clamping plate (406) itself is a porous structure.