A welding joint processing device and method suitable for refrigeration copper pipes

Abstract

The application discloses a welding interface processing device and method suitable for refrigeration copper pipes and belongs to the technical field of welding interface processing of refrigeration copper pipes. The welding interface processing device suitable for the refrigeration copper pipes comprises a device main body, the device main body comprises a frame body, a base is arranged at the middle part of the frame body, and a welding cavity with an opening upward is formed at the base. Through the cooperation of the linkage, the first positioning piece, the second positioning piece and the positioning assembly, the copper pipe is stably limited and positioned, the possibility of shaking or displacement of the copper pipe in the welding process is reduced, unexpected situations in the welding process caused by unstable position of the copper pipe are avoided, the safety of the operator is further ensured, and meanwhile, the setting of the rotating assembly and the welding assembly enables the operator to operate and monitor at a relatively safe distance without directly holding the welding tool to operate in the high-temperature area, so that the risk of burns caused by high temperature and improper operation is greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding interface processing of refrigeration copper pipe, in particular to a welding interface processing device and method suitable for refrigeration copper pipe. BACKGROUND

[0002] The air conditioner refrigeration copper pipe is a kind of air conditioner accessory, which is a connecting copper pipe connecting the indoor unit and the outdoor unit of the air conditioner. The air conditioner copper pipe has the characteristics of hard texture, corrosion resistance, high temperature resistance and high pressure resistance. The existing refrigeration copper pipe can be welded and extended according to actual installation requirements. The operator usually holds a welding gun to burn the connecting part of the refrigeration copper pipe and the connecting copper pipe, and then holds a soldering bar to weld the connecting part.

[0003] However, the close-range welding of the handheld welding gun and the soldering bar is difficult for the operator to withstand for a long time due to the high temperature, and may cause burns to the operator due to improper operation. It is difficult to accurately control the welding gun and the soldering bar, and it is easy to cause uneven heating of the welding position surface. SUMMARY

[0004] The present application provides a welding interface processing device and method suitable for refrigeration copper pipe, which can overcome some or some defects of the prior art.

[0005] According to the welding interface processing device suitable for refrigeration copper pipe of the present application, the device main body includes a frame, a base is arranged in the middle of the frame, a welding cavity with an opening upward is formed at the base, two connecting members are rotatably arranged at the welding cavity, and a first positioning member and a second positioning member corresponding to the two connecting members are rotatably arranged at the welding cavity, and are used to cooperate with the connecting members to limit the outer wall of the copper pipe.

[0006] A rotating assembly is arranged at the welding cavity, a welding assembly is arranged at the second positioning member, and the rotating assembly is used to drive the connecting member to rotate to realize the annular welding of the outer wall of the copper pipe.

[0007] Positioning assemblies are arranged at both ends of the frame at the welding cavity, and the positioning assemblies are used to limit the outer wall of the copper pipe.

[0008] The welding interface processing device suitable for refrigeration copper pipe of the present disclosure can stably limit and position the copper pipe through the cooperation of the linkage, the first positioning member, the second positioning member and the positioning assembly, thereby reducing the possibility of copper pipe shaking or displacement during welding, avoiding accidents in the welding process caused by unstable copper pipe position, further protecting the safety of the operator, and cooperating with the setting of the rotating assembly and the welding assembly to enable the operator to operate and monitor at a relatively safe distance without directly holding the welding tool in the high-temperature area, thereby greatly reducing the risk of burns caused by high temperature and improper operation. At the same time, the rotating assembly is used to drive the linkage to rotate, thereby driving the welding assembly to perform annular welding on the outer wall of the copper pipe. This annular welding method can uniformly heat and weld the copper pipe connection by the welding assembly, ensuring uniform heating of the welding position surface and improving the welding quality and stability.

[0009] It can be understood that the positioning assembly can limit the outer wall of the copper pipe of different pipe diameters, and the cooperation of the linkage, the first positioning member and the second positioning member can also adapt to the limitation of copper pipes of different pipe diameters, thereby improving the application range of the device.

[0010] Preferably, the positioning assembly comprises a guide member coaxially arranged on the frame body at the welding cavity, the guide member is formed with a through hole corresponding to the welding cavity at the axis, the guide member is formed with a plurality of outwardly diverging sliding grooves at the axis, a plurality of cooperating members corresponding to the outer wall of the copper pipe are slidably arranged at the sliding grooves, adjacent cooperating members are commonly provided with a driving member, the driving member is formed with an arc-shaped guide groove at the corresponding position of the sliding groove, and a connecting member penetrating the guide groove and connected with the cooperating member is arranged at the guide groove, and the driving member is used to drive the plurality of cooperating members to move along the sliding groove.

[0011] Through the above structure, when the copper pipe has a large diameter, the driving member acts to make the cooperating member slide outwardly along the sliding groove, thereby increasing the positioning range; when the copper pipe has a small diameter, the driving member makes the cooperating member slide inwardly, thereby reducing the positioning range, so that the outer wall of the copper pipe of different pipe diameters can be closely fitted and limited.

[0012] It can be understood that the guide member is coaxially arranged with the welding cavity, and the through hole at the axis thereof corresponds to the welding cavity, the limiting action of the plurality of cooperating members on the outer wall of the copper pipe can ensure that the copper pipe is accurately located on the axis of the welding cavity, guarantee the coaxiality of the copper pipe and the welding cavity and the stability of the positioning, so that the welding assembly can more accurately weld the copper pipe connection, thereby avoiding problems such as uneven welding and virtual welding caused by copper pipe position deviation, thereby improving the welding quality and enhancing the strength and sealing performance of the welded part of the refrigeration copper pipe.

[0013] Preferably, the frame body is provided with a driving assembly for driving the driving member to rotate, the driving member is provided with a fixing ring, the frame body is formed with a second inner cavity, the driving assembly comprises a second motor arranged in the second inner cavity, a driving gear is arranged at the output end of the second motor and matched with the fixing ring, and a storage battery is arranged in the second inner cavity and connected with the second motor.

[0014] The driving gear at the output end of the second motor is matched with the fixing ring, so that the rotation of the motor is transmitted to the driving member, the function of automatically adjusting the position of the cooperation member by the positioning assembly is realized, manual operation is not needed, and the positioning efficiency and accuracy are improved.

[0015] Preferably, an annular groove is formed in the inner wall of the welding cavity, a first inner cavity is formed in the base, the rotating assembly comprises an outer gear ring rotatably arranged in the annular groove and a first motor arranged in the first inner cavity, a first gear is arranged at the output end of the first motor and matched with the outer gear ring, and the first motor is used to drive the outer gear ring to rotate along the annular groove.

[0016] The rotation of the outer gear ring enables the welding assembly to move in a ring shape around the copper pipe, realizes ring-shaped welding of the outer wall of the copper pipe, and avoids the problem of uneven welding that may occur in manual welding.

[0017] Preferably, the outer gear ring is formed with a through opening part corresponding to the opening of the welding cavity.

[0018] Through the above structure, the placement and removal operation of the copper pipe are facilitated, the time and energy consumption of the operator in the process of assembling and disassembling the copper pipe are reduced, and the work efficiency is improved.

[0019] Preferably, the connecting member is formed with a clamping groove, a second clamping piece is detachably arranged in the clamping groove, the bottom wall of the second positioning piece and the first positioning piece is formed with a rotating groove matched with the corresponding second clamping piece, a first clamping piece matched with the second clamping piece is detachably arranged in the rotating groove, and the first clamping piece and the corresponding second clamping piece are matched with the outer wall of the copper pipe.

[0020] The second clamping piece is detachably arranged on the clamping groove of the connecting member, and the first clamping piece is detachably arranged in the rotating groove of the bottom wall of the first positioning piece and the second positioning piece. When facing different pipe diameters of the refrigeration copper pipe, different specifications of the first clamping piece and the second clamping piece can be replaced according to actual needs. In this way, the first clamping piece and the second clamping piece can be perfectly matched with the outer wall of the copper pipe of different pipe diameters, effective positioning of the copper pipe of different pipe diameters is realized, and the universality and adaptability of the device are enhanced.

[0021] It can be understood that the first clamping piece and the second clamping piece are matched together, not only realizing the positioning of the copper pipe, but also establishing a connection relationship between the first positioning piece, the second positioning piece and the connecting piece. When the connecting piece rotates under the driving of the rotating assembly, through the cooperation of the first clamping piece and the second clamping piece, the first positioning piece and the second positioning piece can be driven to rotate synchronously, and the copper pipe can also rotate, so that the positioning piece can always keep good cooperation with the copper pipe during the annular welding process, and the stability and accuracy of the welding process are ensured.

[0022] Preferably, the connecting piece is formed with a protrusion, and the outer gear ring is formed with a recess for inserting the protrusion.

[0023] Through the mutual insertion and cooperation of the protrusion of the connecting piece and the recess of the outer gear ring, the power can be transmitted to the connecting piece when the outer gear ring rotates, so as to drive the connecting piece to rotate synchronously.

[0024] Preferably, the welding cavity is provided with a buckle corresponding to the first positioning piece and the second positioning piece respectively, and the buckle is used for locking the first positioning piece and the second positioning piece.

[0025] Through the setting of the buckle, the first positioning piece and the second positioning piece can be locked at the welding cavity, so as to prevent the displacement or shaking of the positioning piece due to factors such as vibration and driving of the rotating assembly during the welding process.

[0026] It can be understood that the setting of the buckle provides a convenient locking and unlocking method. When the copper pipe is installed, it can be quickly installed or disassembled.

[0027] Preferably, the expansion hole piece extending along the axis of the welding cavity is formed on the side close to the welding cavity of the cooperating piece, and the adjacent expansion hole pieces jointly form an expansion hole part for expansion hole, and the inner wall of the expansion hole piece is provided with a roller matched with the outer wall of the copper pipe.

[0028] Through the above structure, when the end of the copper pipe needs to be expanded, the end of the copper pipe is inserted into the expansion hole part, and then the driving piece is driven by the second motor to drive the cooperating piece to expand outward for expansion operation, thereby improving the practicability of the device.

[0029] It can be understood that the expansion hole piece can not only expand the end of the copper pipe, but also limit the outer wall of the copper pipe when necessary.

[0030] In addition, through the setting of the roller, the copper pipe can rotate in the positioning assembly, which is convenient for the rotary welding of the copper pipe.

[0031] A method for processing a welding interface of a refrigeration copper pipe includes the following steps:

[0032] Any one of the two copper pipes to be welded is installed to the welding cavity, and is fixed by the second positioning piece and the first positioning piece.

[0033] Adjusting the counterbore at any one positioning assembly, inserting the copper pipe into the counterbore, and counterboring the outer wall of the copper pipe;

[0034] Mounting the counterbored copper pipe and another copper pipe to the first positioning member and the second positioning member respectively, and limiting, and then adjusting the counterbore of the positioning assembly to enable the rollers to limit the outer wall of the corresponding copper pipe;

[0035] The rotating assembly drives the connecting member to synchronously rotate the two copper pipes, and welding is performed through the welding assembly.

[0036] Through the above, the entire welding process is clear in steps and relatively simple to operate. The cooperative work between the components realizes semi-automation of welding, reduces the complexity and labor intensity of manual operation, and improves the speed and efficiency of welding. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a whole schematic view of a welding interface processing device suitable for refrigeration copper pipes.

[0038] Figure 2 It is a schematic view of the first positioning member and the second positioning member of a welding interface processing device suitable for refrigeration copper pipes after being opened.

[0039] Figure 3 It is a schematic view of the whole side view cross-sectional structure of a welding interface processing device suitable for refrigeration copper pipes.

[0040] Figure 4 It is a schematic view of the ring groove cross section of a welding interface processing device suitable for refrigeration copper pipes.

[0041] Figure 5 It is a schematic view of the first inner cavity cross section of a welding interface processing device suitable for refrigeration copper pipes.

[0042] Figure 6 It is a schematic view of the positioning assembly structure of a welding interface processing device suitable for refrigeration copper pipes.

[0043] Figure 7 It is a schematic view of the counterboring member of a welding interface processing device suitable for refrigeration copper pipes.

[0044] 100, device body; 110, frame body; 120, base; 130, welding assembly; 140, positioning assembly; 210, welding cavity; 220, first positioning member; 230, second positioning member; 240, rotating assembly; 250, fastener; 310, first inner cavity; 320, first gear; 321, first motor; 330, ring groove; 340, outer tooth ring; 350, second inner cavity; 360, second motor; 370, battery; 410, through opening part; 510, rotating groove; 520, first clamping member; 530, connecting member; 540, clamping groove; 550, protruding part; 560, recessed part; 570, second clamping member; 610, guide member; 611, sliding groove; 620, matching member; 630, hole expanding member; 640, roller; 650, driving member; 651, guide groove; 660, connecting member; 670, fixing ring. DETAILED DESCRIPTION

[0045] For further understanding of this application, it will be described in detail with examples. It should be understood that the examples are only used to explain but not to limit the application.

[0046] Example 1

[0047] Please refer to Figures 1-7 The embodiment provides a welding interface processing device suitable for refrigeration copper pipe, which comprises a device body 100, the device body 100 comprises a frame body 110, the frame body 110 is provided with a base 120 at the middle part, the base 120 is formed with a welding cavity 210 with an opening upward, two connecting members 530 are rotatably arranged at the welding cavity 210, and the welding cavity 210 is rotatably provided with a first positioning member 220 and a second positioning member 230 corresponding to the two connecting members 530, and the first positioning member 220 and the second positioning member 230 are used for limiting the outer wall of the copper pipe in cooperation with the connecting members 530.

[0048] The welding cavity 210 is provided with a rotating assembly 240, and the second positioning member 230 is provided with a welding assembly 130, the rotating assembly 240 is used for driving the connecting members 530 to rotate, so as to realize the annular welding of the outer wall of the copper pipe.

[0049] The frame body 110 is provided with a positioning assembly 140 at both ends of the welding cavity 210, and the positioning assembly 140 is used for limiting the outer wall of the copper pipe.

[0050] The welding interface processing device suitable for refrigeration copper pipe of the present disclosure can stably limit and position the copper pipe through the cooperation of the linkage 530, the first positioning member 220, the second positioning member 230, and the positioning assembly 140, thereby reducing the possibility of copper pipe shaking or displacement during the welding process, avoiding accidents in the welding process caused by unstable copper pipe position, further ensuring the safety of the operator, and cooperating with the setting of the rotating assembly 240 and the welding assembly 130, so that the operator does not need to directly hold the welding tool in the high-temperature area for operation, and the operator can operate and monitor at a relatively safe distance, greatly reducing the risk of burns caused by high temperature and improper operation. At the same time, the rotating assembly 240 is used to drive the linkage 530 to rotate, thereby driving the welding assembly 130 to perform annular welding on the outer wall of the copper pipe. Through this annular welding method, the welding assembly 130 can uniformly heat and weld the copper pipe connection, ensuring that the welding position surface is uniformly heated, and improving the welding quality and stability.

[0051] It can be understood that the positioning assembly 140 can form a limit on the outer wall of copper pipes of different diameters, and the cooperation of the linkage 530, the first positioning member 220, and the second positioning member 230 can also adapt to the limiting of copper pipes of different diameters, thereby improving the application range of the device.

[0052] In the embodiment, the positioning assembly 140 includes a guide member 610 coaxially arranged at the frame body 110 of the welding cavity 210, the guide member 610 is formed with a through hole corresponding to the welding cavity 210 along the axis, the guide member 610 is formed with a plurality of outwardly diverging sliding grooves 611 along the axis, a plurality of cooperating members 620 corresponding to the outer wall of the copper pipe are slidably arranged at the plurality of sliding grooves 611, adjacent cooperating members 620 are commonly provided with a driving member 650, the driving member 650 is formed with an arc-shaped guide groove 651 corresponding to the sliding groove 611, the guide groove 651 is provided with a connecting member 660 penetrating the guide groove 651 and connected with the cooperating member 620, and the driving member 650 is used to drive the plurality of cooperating members 620 to move along the sliding groove 611.

[0053] Through the above structure, when the diameter of the copper pipe is large, the driving member 650 drives the cooperating member 620 to slide outward along the sliding groove 611, thereby increasing the positioning range; when the diameter of the copper pipe is small, the driving member 650 drives the cooperating member 620 to slide inward, thereby reducing the positioning range, so that the outer wall of the copper pipe of different diameters can be tightly fitted and limited.

[0054] It can be understood that the guide 610 is coaxially arranged with the welding cavity 210, and the through hole at the axis thereof corresponds to the welding cavity 210. Through the limiting action of the plurality of cooperating members 620 on the outer wall of the copper pipe, it can be ensured that the copper pipe is accurately located on the axis of the welding cavity 210, the coaxiality of the copper pipe and the welding cavity and the stability of the positioning are ensured, so that the welding assembly 130 can more accurately weld the connection of the copper pipe, and problems such as uneven welding and virtual welding caused by deviation of the position of the copper pipe are avoided, thereby improving the welding quality and enhancing the strength and sealing performance of the welded part of the refrigeration copper pipe.

[0055] In the embodiment, the frame body 110 is provided with a driving assembly for driving the driving member 650 to rotate. The driving member 650 is provided with a fixed ring 670, and the frame body 110 is formed with a second inner cavity 350. The driving assembly comprises a second motor 360 arranged in the second inner cavity 350. The output end of the second motor 360 is provided with a driving gear matched with the fixed ring 670. The second inner cavity 350 is provided with a storage battery 370 connected with the second motor 360.

[0056] The driving gear at the output end of the second motor 360 is matched with the fixed ring 670, so that the rotation of the motor is transmitted to the driving member 650, realizing the function of automatically adjusting the position of the cooperating member 620 by the positioning assembly, without manual operation, thereby improving the positioning efficiency and accuracy.

[0057] In the embodiment, the inner wall of the welding cavity 210 is formed with an annular groove 330, and the base 120 is formed with a first inner cavity 310. The rotating assembly 240 comprises an outer gear ring 340 rotatably arranged in the annular groove 330 and a first motor 321 arranged in the first inner cavity 310. The output end of the first motor 321 is provided with a first gear 320 matched with the outer gear ring 340. The first motor 321 is used to drive the outer gear ring 340 to rotate along the annular groove 330.

[0058] The rotation of the outer gear ring 340 enables the welding assembly 130 to move in a ring around the copper pipe, realizing ring welding of the outer wall of the copper pipe, and avoiding the problem of uneven welding that may occur in manual welding.

[0059] In the embodiment, the outer gear ring 340 is formed with a through opening part 410 corresponding to the opening of the welding cavity 210.

[0060] Through the above structure, the placement and removal operation of the copper pipe is facilitated, the time and energy consumption of the operator in the process of assembling and disassembling the copper pipe is reduced, and the work efficiency is improved.

[0061] In the embodiment, the linkage member 530 is provided with a clamping groove 540, and the second clamping member 570 is detachably arranged in the clamping groove 540. The bottom wall of the first positioning member 220 and the second positioning member 230 is respectively provided with a rotating groove 510 corresponding to the second clamping member 570, and the first clamping member 520 matched with the second clamping member 570 is detachably arranged in the rotating groove 510. The first clamping member 520 and the second clamping member 570 are matched with the outer wall of the copper pipe.

[0062] The second clamping member 570 is detachably arranged in the clamping groove 540 on the linkage member 530, and the first clamping member 520 is detachably arranged in the rotating groove 510 of the bottom wall of the first positioning member 220 and the second positioning member 230. When facing different pipe diameters of the refrigeration copper pipe, different specifications of the first clamping member 520 and the second clamping member 570 can be replaced according to actual needs. In this way, the first clamping member 520 and the second clamping member 570 can be perfectly matched with the outer wall of the copper pipe of different pipe diameters, so as to realize effective positioning of the copper pipe of different pipe diameters and enhance the universality and adaptability of the device.

[0063] It can be understood that the first clamping member 520 and the second clamping member 570 are matched together, not only realizing the positioning of the copper pipe, but also establishing a connection relationship between the first positioning member 220, the second positioning member 230 and the linkage member 530. When the linkage member 530 is driven to rotate by the rotating assembly 240, the first positioning member 220 and the second positioning member 230 can be driven to rotate synchronously by the cooperation of the first clamping member 520 and the second clamping member 570, and the copper pipe can be driven to rotate, so as to ensure that the positioning member can always be in good cooperation with the copper pipe during the annular welding process, and the stability and accuracy of the welding process are ensured.

[0064] In the embodiment, the linkage member 530 is provided with a protruding part 550, and the outer tooth ring 340 is provided with a recessed part 560 for inserting the protruding part 550.

[0065] The protruding part 550 of the linkage member 530 and the recessed part 560 of the outer tooth ring 340 are inserted and matched with each other, so that when the outer tooth ring 340 rotates, power can be transmitted to the linkage member 530, and the linkage member 530 is driven to rotate synchronously.

[0066] In the embodiment, the welding cavity 210 is provided with a buckle 250 corresponding to the first positioning member 220 and the second positioning member 230, and the buckle 250 is used for locking the first positioning member 220 and the second positioning member 230.

[0067] The first positioning member 220 and the second positioning member 230 can be locked in the welding cavity 210 by the buckle 250, so as to prevent the displacement or shaking of the positioning member due to factors such as vibration and driving of the rotating assembly during the welding process.

[0068] Understandably, the design of fastener 250 provides a convenient locking and unlocking method. It allows for quick installation or removal when installing copper pipes.

[0069] Example 2

[0070] Seen in Figure 6 and Figure 7 This embodiment also provides a welding interface processing device suitable for refrigeration copper tubes. The difference between this device and Embodiment 1 is that: each mating part 620 has a hole-expanding part 630 extending axially along the welding cavity 210 on the side near the welding cavity 210. Adjacent hole-expanding parts 630 together form a hole-expanding section for hole expansion. Rollers 640 that cooperate with the outer wall of the copper tube are provided on the inner wall of each hole-expanding part 630.

[0071] With the above structure, when it is necessary to enlarge the hole at the end of the copper tube, one end of the copper tube is inserted into the enlarged hole section, and then the second motor 360 drives the driving component 650 to drive the mating component 620 to expand outward to perform the enlarged hole operation, which improves the practicality of the device.

[0072] Understandably, the enlarging component 630 can both enlarge the end of the copper tube and limit the outer wall of the copper tube when it is necessary to limit the copper tube.

[0073] In addition, the rollers 640 allow the copper tube to rotate within the positioning assembly 140, facilitating the rotary welding of the copper tube.

[0074] Example 3

[0075] This embodiment, based on Embodiment 1 or Embodiment 2, provides a method for processing the welding joints of refrigeration copper tubes, comprising the following steps:

[0076] Install one of the two copper tubes to be welded into the welding cavity 210 and fix it by the second positioning member 230 and the first positioning member 220;

[0077] Adjust the enlarged hole section at any of the positioning components 140, insert the copper tube into the enlarged hole section, and enlarge the hole on the outer wall of the copper tube;

[0078] The enlarged copper tube and another copper tube are respectively installed at the first positioning member 220 and the second positioning member 230 and limited. Then, the enlarged part of the positioning component 140 is adjusted so that the roller 640 limits the outer wall of the corresponding copper tube.

[0079] The rotating component 240 drives the linkage 530 to rotate the two copper tubes synchronously, and welding is performed through the welding component 130.

[0080] Through the above, the whole welding process steps are clear, and the operation is relatively simple. The cooperation between the components realizes the semi-automatic welding, reduces the complexity and labor intensity of manual operation, and improves the welding speed and efficiency.

[0081] It is easy to understand that, based on one or more embodiments provided in the present application, other embodiments can be obtained by combining, splitting, recombining, etc. of the embodiments of the present application, and these embodiments do not exceed the protection scope of the present application.

[0082] The above describes the present application and its embodiments in a schematic manner, and the description is not restrictive. The embodiments shown are only part of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this, without departing from the purpose of the present application, similar structure and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A method of using a welding interface treatment device for refrigeration copper tubes, based on a welding interface treatment device for refrigeration copper tubes, wherein, The welding interface processing device comprises a device main body (100), the device main body (100) comprises a frame body (110), a base (120) is arranged at the middle part of the frame body (110), an upward-opening welding cavity (210) is formed at the base (120), two connecting members (530) are rotatably arranged at the welding cavity (210), a first positioning member (220) and a second positioning member (230) corresponding to the two connecting members (530) are rotatably arranged at the welding cavity (210) and are used for limiting the outer wall of the copper pipe in cooperation with the connecting members (530), a clamping groove (540) is formed at the connecting member (530), a second clamping member (570) is detachably arranged at the clamping groove (540), a rotating groove (510) corresponding to the second clamping member (570) is formed at the bottom wall of the second positioning member (230) and the first positioning member (220), a first clamping member (520) cooperating with the second clamping member (570) is detachably arranged in the rotating groove (510), and the first clamping member (520) and the corresponding second clamping member (570) cooperate with the outer wall of the copper pipe; A rotating assembly (240) is arranged at the welding cavity (210), a welding assembly (130) is arranged at the second positioning member (230), and a positioning assembly (140) is arranged at both ends of the frame body (110) located at the welding cavity (210), the positioning assembly (140) comprises a guide member (610) arranged coaxially with the welding cavity (210) at the frame body (110); The guide member (610) is formed with a plurality of sliding grooves (611) spreading outward along the axis, a cooperating member (620) cooperating with the outer wall of the copper pipe is slidably arranged at the plurality of sliding grooves (611), the cooperating member (620) is formed with an expanding hole member (630) extending along the axis of the welding cavity (210) on the side close to the welding cavity (210), adjacent expanding hole members (630) jointly form an expanding hole part for expanding a hole, and the expanding hole member (630) is provided with a roller (640) cooperating with the outer wall of the copper pipe at the inner wall thereof; Specifically comprising the following steps: Any one of the two copper pipes to be welded is arranged at the welding cavity (210), and is fixed by the second positioning member (230) and the first positioning member (220); The expanding hole part of any one of the positioning assemblies (140) is adjusted, the copper pipe is inserted into the expanding hole part, and the outer wall of the copper pipe is expanded; The copper pipe after the expanding hole and the other copper pipe are respectively arranged at the first positioning member (220) and the second positioning member (230) and are limited, and the roller (640) limits the outer wall of the corresponding copper pipe by adjusting the expanding hole part of the positioning assembly (140); The rotating assembly (240) drives the connecting members (530) to synchronously rotate the two copper pipes, and the welding assembly (130) is welded.

2. A method of using a welding interface treatment device for refrigeration copper tubing as defined in claim 1, wherein: Adjacent mating parts (620) are provided with a driving part (650). The driving part (650) and the slide groove (611) are respectively provided with arc-shaped guide grooves (651). The guide grooves (651) are respectively provided with connecting parts (660) that pass through the guide grooves (651) and connect the mating parts (620). The driving part (650) is used to drive the multiple mating parts (620) to move along the slide groove (611).

3. A method of using a welding interface treatment device for refrigeration copper tubing as defined in claim 2, wherein: The frame (110) is provided with a drive assembly for driving the drive component (650) to rotate. The drive component (650) is provided with a fixing ring (670). The frame (110) forms a second inner cavity (350). The drive assembly includes a second motor (360) located in the second inner cavity (350). The output end of the second motor (360) is provided with a drive gear that cooperates with the fixing ring (670). The second inner cavity (350) is provided with a battery (370) for connecting to the second motor (360).

4. The method of using a welding interface treatment device for refrigeration copper tubing of claim 1, wherein: An annular groove (330) is formed on the inner wall of the welding cavity (210), and a first inner cavity (310) is formed in the base (120). The rotating assembly (240) includes an external gear ring (340) rotatably disposed in the annular groove (330) and a first motor (321) disposed in the first inner cavity (310). The output end of the first motor (321) is provided with a first gear (320) that cooperates with the external gear ring (340). The first motor (321) is used to drive the external gear ring (340) to rotate along the annular groove (330).

5. A method of using a welding interface treatment device for refrigeration copper tubing as defined in claim 4, wherein: An opening (410) corresponding to the opening of the welding cavity (210) is formed at the outer toothed ring (340).

6. A method of using a welding interface treatment device for refrigeration copper tubing as defined in claim 4, wherein: A protrusion (550) is formed at the linkage (530), and a recess (560) is formed at the external toothed ring (340) for the protrusion (550) to be inserted.

7. A method of using a welding interface treatment device for refrigeration copper tubing as defined in claim 1, wherein: The welding cavity (210) is provided with fasteners (250) corresponding to the first positioning member (220) and the second positioning member (230) respectively. The fasteners (250) are used to lock the first positioning member (220) and the second positioning member (230).

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