Welding connector processing device and method suitable for refrigeration copper pipe

Abstract

The invention discloses a welding connector processing device and method suitable for a refrigeration copper pipe, and belongs to the technical field of welding connector processing of refrigeration copper pipes. A welding connector processing device suitable for a refrigeration copper pipe comprises a device body, the device body comprises a frame body, a base is arranged in the middle of the frame body, and a welding cavity with an upward opening is formed in the base. Through cooperative arrangement of the linkage piece, the first positioning piece, the second positioning piece and the positioning assembly, the copper pipe is stably limited and positioned, the possibility that the copper pipe shakes or moves in the welding process is reduced, the situation that accidents occur in the welding process due to the fact that the position of the copper pipe is unstable is avoided, the safety of operators is further guaranteed, and the welding efficiency is improved. And meanwhile, the rotating assembly and the welding assembly are arranged in a matched mode, so that an operator does not need to directly hold a welding tool by hand to operate in a high-temperature area, the operator can operate and monitor within a relatively safe distance, and the risk of burn caused by high temperature and misoperation is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of welding interface treatment for refrigeration copper pipes, and more specifically, to a welding interface treatment device and method applicable to refrigeration copper pipes. Background Art

[0002] Air-conditioning refrigeration copper pipes are a type of air-conditioning accessory, referring to the connecting copper pipes that connect the indoor unit and the outdoor unit of an air conditioner. The copper pipes of air conditioners are hard in texture, not easily corroded, and have characteristics such as high temperature resistance and high pressure resistance. Existing refrigeration copper pipes can be welded and extended according to actual installation requirements. Operators usually directly hold a welding torch to burn the connection between the refrigeration copper pipe and the connecting copper pipe, and then hold a brazing rod to perform welding treatment on the connection.

[0003] However, when welding closely with a hand-held welding torch and brazing rod, it is difficult for personnel to bear the high temperature for a long time, and it may also cause burns and other situations to the personnel working at close range due to improper operation, with relatively large potential safety hazards. Moreover, when working in a hand-held manner, it is difficult to accurately control the welding torch and brazing rod, and it is easy to cause uneven heating on the surface of the welding position. Summary of the Invention

[0004] The present invention provides a welding interface treatment device and method applicable to refrigeration copper pipes, which can overcome certain or some defects of the prior art.

[0005] According to a welding interface treatment device applicable to refrigeration copper pipes of the present invention, it includes a device main body. The device main body includes a frame. A base is provided in the middle of the frame. A welding cavity with an upward opening is formed at the base. Two linkage members are rotatably provided at the welding cavity. At the welding cavity, a first positioning member and a second positioning member corresponding to the two linkage members and used to cooperate with the linkage members to form a limit on the outer wall of the copper pipe are rotatably provided;

[0006] A rotation assembly is provided at the welding cavity, and a welding assembly is provided at the second positioning member. The rotation assembly is used to drive the linkage members to rotate to achieve circumferential welding of the outer wall of the copper pipe;

[0007] Positioning assemblies are provided at both ends of the frame where the welding cavity is located. The positioning assemblies are used to form a limit on the outer wall of the copper pipe.

[0008] A welding interface processing device for refrigeration copper pipes according to the present disclosure, through the coordinated setting of a linkage member, a first positioning member, a second positioning member, and a positioning assembly, stably limits and positions the copper pipe, reducing the possibility of the copper pipe shaking or shifting during the welding process, avoiding accidents during the welding process due to the unstable position of the copper pipe, further ensuring the safety of the operator. At the same time, with the setting of the rotation assembly and the welding assembly, the operator does not need to directly hold the welding tool to operate in the high-temperature area, 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 rotation assembly is used to drive the linkage member to rotate, thereby driving the welding assembly to perform circumferential welding on the outer wall of the copper pipe. Through this circumferential welding method, the welding assembly can uniformly heat and weld the connection of the copper pipe, ensuring uniform heat reception on the surface of the welding position, and improving the quality and stability of the welding.

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

[0010] Preferably, the positioning assembly includes a guiding member coaxially arranged with the welding cavity at the frame body. The guiding member is formed with a through hole corresponding to the welding cavity along the axis, and the guiding member is formed with a plurality of sliding grooves diffusing outward along the axis. A fitting member cooperating with the outer wall of the copper pipe is slidably arranged at each of the plurality of sliding grooves. An adjacent fitting member is jointly provided with a driving member. The driving member is formed with arc-shaped guiding grooves corresponding to the sliding grooves, and connecting members penetrating through the guiding grooves and connecting with the fitting member are arranged at the guiding grooves. The driving member is used to drive the plurality of fitting members to move along the sliding grooves.

[0011] Through the above structure, when the diameter of the copper pipe is large, the driving member acts to make the fitting member slide outward along the sliding groove, increasing the positioning range; when the diameter of the copper pipe is small, the driving member makes the fitting member slide inward, reducing the positioning range, so as to form a tight fit and limitation on the outer wall of copper pipes with different diameters.

[0012] It can be understood that the guiding member is coaxially arranged with the welding cavity, and the through hole at its axis corresponds to the welding cavity. Through the limiting effect of the plurality of fitting members on the outer wall of the copper pipe, it can ensure that the copper pipe is accurately located on the axis of the welding cavity, ensuring the coaxiality of the copper pipe and the welding cavity and the stability of the positioning, enabling the welding assembly to more accurately weld the connection of the copper pipe, avoiding problems such as uneven welding and false welding caused by the position deviation of the copper pipe, thereby improving the welding quality and enhancing the strength and sealing performance of the welded part of the refrigeration copper pipe.

[0013] Preferably, a driving assembly for driving the driving member to rotate is provided at the frame body. A fixing ring is provided at the driving member. A second inner cavity is formed at the frame body. The driving assembly includes a second motor disposed in the second inner cavity. A driving gear that cooperates with the fixing ring is provided at the output end of the second motor. A storage battery for connecting to the second motor is provided in the second inner cavity.

[0014] Through the cooperation of the driving gear at the output end of the second motor and the fixing ring, the rotation of the motor is transmitted to the driving member, realizing the function of automatically adjusting the position of the positioning component for the cooperating component, eliminating the need for manual operation, and improving the positioning efficiency and accuracy.

[0015] Preferably, a ring groove is formed on the inner wall of the welding cavity. A first inner cavity is formed in the base. The rotating assembly includes an external gear ring rotatably disposed in the ring groove and a first motor disposed in the first inner cavity. A first gear that cooperates with the external gear ring is provided at the output end of the first motor. The first motor is used to drive the external gear ring to rotate along the ring groove.

[0016] Through the rotation of the external gear ring, the welding assembly can perform circular movement around the copper pipe, realizing circular welding of the outer wall of the copper pipe, and avoiding the problem of uneven welding that may occur in manual welding.

[0017] Preferably, a through-port portion corresponding to the opening of the welding cavity is formed at the external gear ring.

[0018] With the above structure, it is convenient for the placement and removal of the copper pipe, reducing the time and energy consumption of the operator during the loading and unloading of the copper pipe, and improving the work efficiency.

[0019] Preferably, a card slot is formed at the linkage member. A second card member is detachably provided at the card slot. Rotation grooves corresponding to the respective second card members are formed at the bottom walls of the second positioning member and the first positioning member. A first card member that cooperates with the second card member is detachably provided in the rotation groove. The first card member and the corresponding second card member jointly cooperate with the outer wall of the copper pipe.

[0020] By detachably providing the second card member in the card slot on the linkage member, and detachably providing the first card member in the rotation grooves at the bottom walls of the first positioning member and the second positioning member. When facing refrigeration copper pipes of different diameters, different specifications of the first card member and the second card member can be replaced according to actual needs. In this way, the first card member and the second card member can jointly fit perfectly with the outer walls of copper pipes of different diameters, realizing effective positioning of copper pipes of different diameters, and enhancing the versatility and adaptability of the device.

[0021] It can be understood that the first card member and the second card member cooperate with each other, not only realizing the positioning of the copper tube, but also establishing a connection relationship between the first positioning member, the second positioning member and the linkage member. When the linkage member rotates under the drive of the rotating assembly, through the cooperation of the first card member and the second card member, the first positioning member and the second positioning member can be driven to rotate synchronously, and the copper tube can rotate, so as to ensure that during the circular welding process, the positioning member can always maintain a good cooperation state with the copper tube, ensuring the stability and accuracy of the welding process.

[0022] Preferably, a convex portion is formed at the linkage member, and a concave portion for inserting the convex portion is formed at the external gear ring.

[0023] Through the mutual insertion and cooperation of the convex portion of the linkage member and the concave portion of the external gear ring, when the external gear ring rotates, the power can be transmitted to the linkage member to drive the linkage member to rotate synchronously.

[0024] Preferably, fasteners corresponding to the first positioning member and the second positioning member are provided at the welding cavity, and the fasteners are used to lock the first positioning member and the second positioning member.

[0025] Through the arrangement of the fasteners, the first positioning member and the second positioning member can be locked at the welding cavity, preventing the positioning member from shifting or shaking due to factors such as vibration and the drive of the rotating assembly during the welding process.

[0026] It can be understood that the arrangement of the fasteners provides a convenient locking and unlocking method. When installing the copper tube, it can be quickly installed or disassembled.

[0027] Preferably, on the side of the fitting member close to the welding cavity, an expanding hole member extending along the axial direction of the welding cavity is formed, and adjacent expanding hole members jointly form an expanding hole portion for expanding the hole, and rollers cooperating with the outer wall of the copper tube are provided on the inner wall of the expanding hole member.

[0028] Through the above structure, when it is necessary to expand the end of the copper tube, by inserting one end of the copper tube into the expanding hole portion, and then working the second motor to drive the driving member, the driving member drives the fitting member to expand outward for the hole expanding operation, improving the practicability of the device.

[0029] It can be understood that the expanding hole member can not only expand the end of the copper tube, but also limit the outer wall of the copper tube when it is necessary to limit the copper tube.

[0030] In addition, through the arrangement of the rollers, the copper tube can rotate within the positioning assembly, facilitating the rotary welding of the copper tube.

[0031] A method for a welding interface processing device suitable for refrigeration copper tubes includes the following steps:

[0032] Install any one of the two copper tubes to be welded at the welding cavity, and fix it through the second positioning member and the first positioning member;

[0033] Adjust the reaming part at any one of the positioning components, insert the copper tube into the reaming part, and ream the outer wall of the copper tube.

[0034] Install the reamed copper tube and another copper tube at the first positioning member and the second positioning member respectively, and perform limiting. Then, by adjusting the reaming part of the positioning component, the roller limits the outer wall of the corresponding copper tube.

[0035] The rotating component drives the linkage member to drive the two copper tubes to rotate synchronously, and welding is performed by the welding component.

[0036] Through the above, the steps of the entire welding process are clear and the operation is relatively simple. The collaborative work among the components realizes semi-automatic welding, reduces the complexity and labor intensity of manual operation, and improves the welding speed and efficiency. Brief Description of the Drawings

[0037] Figure 1 It is an overall schematic diagram of a welding interface processing device applicable to refrigeration copper tubes.

[0038] Figure 2 It is a schematic diagram after the first positioning member and the second positioning member of a welding interface processing device applicable to refrigeration copper tubes are opened.

[0039] Figure 3 It is an overall side view sectional structure schematic diagram of a welding interface processing device applicable to refrigeration copper tubes.

[0040] Figure 4 It is a schematic diagram of a ring groove section of a welding interface processing device applicable to refrigeration copper tubes.

[0041] Figure 5 It is a schematic diagram of a first inner cavity section of a welding interface processing device applicable to refrigeration copper tubes.

[0042] Figure 6 It is a schematic diagram of the structure of a positioning component of a welding interface processing device applicable to refrigeration copper tubes.

[0043] Figure 7 It is a schematic diagram of a reaming part of a welding interface processing device applicable to refrigeration copper tubes.

[0044] 100, Device main body; 110, Frame; 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, External gear ring; 350, Second inner cavity; 360, Second motor; 370, Battery; 410, Through port part; 510, Rotating groove; 520, First clamping member; 530, Linking member; 540, Card slot; 550, Convex part; 560, Concave part; 570, Second clamping member; 610, Guide member; 611, Sliding groove; 620, Fitting member; 630, Hole expanding member; 640, Roller; 650, Driving member; 651, Guide groove; 660, Connecting member; 670, Fixed ring. Detailed implementation manner

[0045] To further understand the content of the present invention, the present invention will be described in detail in combination with embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting it.

[0046] Embodiment 1

[0047] Please refer to Figures 1-7 , this embodiment provides a welding interface processing device applicable to refrigeration copper pipes, which includes a device main body 100. The device main body 100 includes a frame 110. A base 120 is provided in the middle of the frame 110. A welding cavity 210 with an upward opening is formed at the base 120. Two linking members 530 are rotatably provided at the welding cavity 210. A first positioning member 220 and a second positioning member 230 corresponding to the two linking members 530 and used for cooperating with the linking members 530 to limit the outer wall of the copper pipe are rotatably provided at the welding cavity 210;

[0048] A rotating assembly 240 is provided at the welding cavity 210, and a welding assembly 130 is provided at the second positioning member 230. The rotating assembly 240 is used to drive the linking members 530 to rotate to realize the circumferential welding of the outer wall of the copper pipe;

[0049] Positioning assemblies 140 are provided at both ends of the frame 110 where the welding cavity 210 is located. The positioning assemblies 140 are used to limit the outer wall of the copper pipe.

[0050] A welding interface processing device for refrigeration copper pipes according to the present disclosure, through the cooperative setting of the linkage member 530, the first positioning member 220, the second positioning member 230 and the positioning assembly 140, stably limits and positions the copper pipe, reducing the possibility of the copper pipe shaking or shifting during the welding process, avoiding unexpected situations during the welding process due to the unstable position of the copper pipe, further ensuring the safety of the operator. At the same time, with the setting of the rotating assembly 240 and the welding assembly 130, the operator does not need to directly hold the welding tool to operate in the high-temperature area, 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 member 530 to rotate, thereby driving the welding assembly 130 to perform circumferential welding on the outer wall of the copper pipe. Through this circumferential welding method, the welding assembly 130 can uniformly heat and weld the connection of the copper pipe, ensuring uniform heat reception on the surface of the welding position and improving the quality and stability of the welding.

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

[0052] In this embodiment, the positioning assembly 140 includes a guide member 610 coaxially arranged with the welding cavity 210 at the frame body 110. 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 diffused chutes 611 along the axis. A fitting member 620 cooperating with the outer wall of the copper pipe is slidably provided at each of the plurality of chutes 611. An adjacent fitting member 620 is commonly provided with a driving member 650. The driving member 650 is formed with an arc-shaped guide groove 651 at the corresponding position of the chute 611. A connecting member 660 passing through the guide groove 651 and connecting with the fitting member 620 is provided at each of the guide grooves 651. The driving member 650 is used to drive the plurality of fitting members 620 to move along the chute 611.

[0053] Through the above structure, when the diameter of the copper pipe is larger, the driving member 650 acts to make the fitting member 620 slide outward along the chute 611, increasing the positioning range; when the diameter of the copper pipe is smaller, the driving member 650 makes the fitting member 620 slide inward, reducing the positioning range, so as to form a tight fit and limit on the outer wall of copper pipes with different diameters.

[0054] It can be understood that the guiding member 610 is coaxially arranged with the welding cavity 210, and the through hole at its axis corresponds to the welding cavity 210. Through the limiting effect of multiple fitting members 620 on the outer wall of the copper tube, it can ensure that the copper tube is accurately located on the axis of the welding cavity 210, guarantee the coaxiality between the copper tube and the welding cavity and the stability of positioning, enabling the welding assembly 130 to weld the connection of the copper tube more precisely, avoiding problems such as uneven welding and false soldering caused by the position deviation of the copper tube, thereby improving the welding quality and enhancing the strength and sealing performance of the welded part of the refrigeration copper tube.

[0055] In this embodiment, a driving assembly for driving the driving member 650 to rotate is provided at the frame body 110. A fixing ring 670 is provided at the driving member 650. A second inner cavity 350 is formed at the frame body 110. The driving assembly includes a second motor 360 disposed in the second inner cavity 350. A driving gear for cooperating with the fixing ring 670 is provided at the output end of the second motor 360. A storage battery 370 for connecting with the second motor 360 is provided in the second inner cavity 350.

[0056] Through the cooperation between the driving gear at the output end of the second motor 360 and the fixing ring 670, the rotation of the motor is transmitted to the driving member 650, realizing the function of automatically adjusting the position of the positioning component 620 by the positioning component, without manual operation, improving the positioning efficiency and accuracy.

[0057] In this embodiment, a ring groove 330 is formed at the inner wall of the welding cavity 210. A first inner cavity 310 is formed in the base 120. The rotating assembly 240 includes an external gear ring 340 rotatably disposed at the ring groove 330 and a first motor 321 disposed in the first inner cavity 310. A first gear 320 for cooperating with the external gear ring 340 is provided at the output end of the first motor 321. The first motor 321 is used to drive the external gear ring 340 to rotate along the ring groove 330.

[0058] Through the rotation of the external gear ring 340, the welding assembly 130 can perform circular movement around the copper tube, realizing circular welding of the outer wall of the copper tube and avoiding the problem of uneven welding that may occur in manual welding.

[0059] In this embodiment, a through port portion 410 corresponding to the opening of the welding cavity 210 is formed at the external gear ring 340.

[0060] Through the above structure, it facilitates the placement and removal operations of the copper tube, reduces the time and energy consumption of the operator during the loading and unloading process of the copper tube, and improves the work efficiency.

[0061] In this embodiment, a clamping groove 540 is formed at the linkage member 530, and a second clamping member 570 is detachably provided at the clamping groove 540. Rotating grooves 510 corresponding to the respective second clamping members 570 are formed at the bottom walls of the second positioning member 230 and the first positioning member 220. A first clamping member 520 that cooperates with the second clamping member 570 is detachably provided in the rotating groove 510. The first clamping member 520 and the corresponding second clamping member 570 jointly cooperate with the outer wall of the copper pipe.

[0062] The second clamping member 570 is detachably arranged through the clamping groove 540 on the linkage member 530, and the first clamping member 520 is detachably arranged in the rotating groove 510 at the bottom walls of the first positioning member 220 and the second positioning member 230. When facing refrigeration copper pipes of different diameters, the first clamping member 520 and the second clamping member 570 of different specifications can be replaced according to actual needs. In this way, the first clamping member 520 and the second clamping member 570 can jointly and perfectly cooperate with the outer walls of copper pipes of different diameters, realizing effective positioning of copper pipes of different diameters and enhancing the versatility and adaptability of the device.

[0063] It can be understood that the cooperation between the first clamping member 520 and the second clamping member 570 not only realizes the positioning of the copper pipe but also establishes a connection relationship between the first positioning member 220, the second positioning member 230, and the linkage member 530. When the linkage member 530 rotates under the drive of the rotating assembly 240, through the cooperation of the first clamping member 520 and the second clamping member 570, the first positioning member 220 and the second positioning member 230 can be driven to rotate synchronously, as well as the copper pipe to rotate, so as to ensure that during the annular welding process, the positioning member can always maintain a good cooperation state with the copper pipe, ensuring the stability and accuracy of the welding process.

[0064] In this embodiment, a convex portion 550 is formed at the linkage member 530, and a concave portion 560 for inserting the convex portion 550 is formed at the external gear ring 340.

[0065] Through the mutual insertion and cooperation of the convex portion 550 of the linkage member 530 and the concave portion 560 of the external gear ring 340, when the external gear ring 340 rotates, the power can be transmitted to the linkage member 530 to drive the linkage member 530 to rotate synchronously.

[0066] In this embodiment, fasteners 250 corresponding to the first positioning member 220 and the second positioning member 230 are provided at the welding cavity 210, and the fasteners 250 are used to lock the first positioning member 220 and the second positioning member 230.

[0067] Through the arrangement of the fasteners 250, the first positioning member 220 and the second positioning member 230 can be locked at the welding cavity 210 to prevent the positioning member from shifting or shaking due to factors such as vibration and the drive of the rotating assembly during the welding process.

[0068] It is understandable that the provision of the fastener 250 provides a convenient way of locking and unlocking. When installing the copper pipe, it can be quickly installed or disassembled.

[0069] Embodiment 2

[0070] As seen in Figure 6 and Figure 7 , this embodiment also provides a welding interface processing device applicable to refrigeration copper pipes, which is different from Embodiment 1 in that: on one side of the fitting 620 close to the welding cavity 210, there are formed reaming members 630 extending along the axial direction of the welding cavity 210, and adjacent reaming members 630 together form a reaming part for reaming, and on the inner wall of the reaming member 630, there are provided rollers 640 that cooperate with the outer wall of the copper pipe.

[0071] With the above structure, when it is necessary to ream the end of the copper pipe, by inserting one end of the copper pipe into the reaming part, and then driving the driving member 650 through the operation of the second motor 360, the driving member 650 drives the fitting 620 to expand outwards for reaming operation, which improves the practicability of the device.

[0072] It is understandable that the reaming member 630 can not only ream the end of the copper pipe, but also limit the outer wall of the copper pipe when it is necessary to limit the copper pipe.

[0073] In addition, through the provision of the rollers 640, the copper pipe can rotate within the positioning assembly 140, which is convenient for the rotary welding of the copper pipe.

[0074] Embodiment 3

[0075] Based on Embodiment 1 or Embodiment 2, this embodiment provides a method for a welding interface processing device applicable to refrigeration copper pipes, including the following steps:

[0076] Install any one of the two copper pipes to be welded at the welding cavity 210, and fix it through the second positioning member 230 and the first positioning member 220;

[0077] Adjust the reaming part at any one of the positioning assemblies 140, insert the copper pipe into the reaming part, and ream the outer wall of the copper pipe;

[0078] Install the reamed copper pipe and the other copper pipe at the first positioning member 220 and the second positioning member 230 respectively, and perform limiting, and then adjust the reaming part of the positioning assembly 140 so that the rollers 640 limit the outer wall of the corresponding copper pipe;

[0079] The rotating assembly 240 drives the linkage member 530 to drive the two copper pipes to rotate synchronously, and welding is performed through the welding assembly 130.

[0080] Through the above, the steps of the entire welding process are clear and the operation is relatively simple. The collaborative work among various components realizes semi-automation of welding, reduces the complexity and labor intensity of manual operation, and improves the welding speed and efficiency.

[0081] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and none of these embodiments exceeds the protection scope of the present application.

[0082] The present invention and its implementation manners are schematically described above. The description is not restrictive, and what is shown in the embodiments is only part of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A welding interface processing device applicable to refrigeration copper pipes, characterized in that: It includes a device main body (100). The device main body (100) includes a frame body (110). A base (120) is provided in the middle of the frame body (110). A welding cavity (210) with an upward opening is formed at the base (120). Two linkage members (530) are rotatably provided at the welding cavity (210). A first positioning member (220) and a second positioning member (230) which correspond to the two linkage members (530) and are used to cooperate with the linkage members (530) to limit the outer wall of the copper tube are rotatably provided at the welding cavity (210). A rotating assembly (240) is provided at the welding cavity (210). A welding assembly (130) is provided at the second positioning member (230). The rotating assembly (240) is used to drive the linkage members (530) to rotate so as to realize the circumferential welding of the outer wall of the copper tube. Positioning assemblies (140) are provided at both ends of the frame body (110) where the welding cavity (210) is located. The positioning assemblies (140) are used to limit the outer wall of the copper tube.

2. The welding interface processing device for refrigeration copper pipes according to claim 1, wherein: The positioning assembly (140) includes a guiding member (610) coaxially provided with the welding cavity (210) at the frame body (110). A through hole corresponding to the welding cavity (210) is formed along the axis of the guiding member (610). A plurality of sliding grooves (611) spreading outwards are formed along the axis of the guiding member (610). Fitting members (620) cooperating with the outer wall of the copper tube are slidably provided at the plurality of sliding grooves (611). A driving member (650) is commonly provided between adjacent fitting members (620). Arc-shaped guiding grooves (651) are formed at the corresponding positions of the driving member (650) and the sliding grooves (611). Connecting members (660) passing through the guiding grooves (651) and connecting with the fitting members (620) are provided at the guiding grooves (651). The driving member (650) is used to drive the plurality of fitting members (620) to move along the sliding grooves (611).

3. The welding interface processing device for refrigeration copper pipes according to claim 2, characterized in that: A driving assembly for driving the driving member (650) to rotate is provided at the frame body (110). A fixing ring (670) is provided at the driving member (650). A second inner cavity (350) is formed at the frame body (110). The driving assembly includes a second motor (360) provided in the second inner cavity (350). A driving gear cooperating with the fixing ring (670) is provided at the output end of the second motor (360). A storage battery (370) for connecting with the second motor (360) is provided in the second inner cavity (350).

4. A welding interface processing device applicable to refrigeration copper pipes according to claim 1, characterized in that: A ring groove (330) is formed at the inner wall of the welding cavity (210). A first inner cavity (310) is formed in the base (120). The rotating assembly (240) includes an outer gear ring (340) rotatably provided at the ring groove (330) and a first motor (321) provided in the first inner cavity (310). A first gear (320) cooperating with the outer gear ring (340) is provided at the output end of the first motor (321). The first motor (321) is used to drive the outer gear ring (340) to rotate along the ring groove (330).

5. The welding interface processing device for refrigeration copper pipes according to claim 1, characterized in that: A through port part (410) corresponding to the opening of the welding cavity (210) is formed at the outer gear ring (340).

6. The welding interface processing device for refrigeration copper pipes according to claim 1, characterized in that: A clamping groove (540) is formed at the linkage member (530), and a second clamping member (570) is detachably provided at the clamping groove (540). Rotating grooves (510) corresponding to the respective second clamping members (570) are formed at the bottom walls of the second positioning member (230) and the first positioning member (220). A first clamping member (520) that cooperates with the second clamping member (570) is detachably provided in the rotating groove (510). The first clamping member (520) and the corresponding second clamping member (570) cooperate with the outer wall of the copper tube together.

7. The welding interface processing device applicable to refrigeration copper pipes according to claim 6, characterized in that: A convex portion (550) is formed at the linkage member (530), and a concave portion (560) for inserting the convex portion (550) is formed at the external gear ring (340).

8. A welding interface processing device applicable to refrigeration copper pipes according to claim 1, characterized in that: Fasteners (250) corresponding to the first positioning member (220) and the second positioning member (230) are provided at the welding cavity (210), and the fasteners (250) are used to lock the first positioning member (220) and the second positioning member (230).

9. The welding interface processing device for refrigeration copper pipes according to claim 2, wherein: On one side of the fitting member (620) close to the welding cavity (210), reaming members (630) extending axially along the welding cavity (210) are formed. Adjacent reaming members (630) together form a reaming portion for reaming. Rollers (640) that cooperate with the outer wall of the copper tube are provided on the inner walls of the reaming members (630).

10. A method for using a welding interface processing device suitable for refrigeration copper pipes, which is applied to a welding interface processing device suitable for refrigeration copper pipes according to any one of claims 1-9, characterized in that, Including the following steps: Install any one of the two copper tubes to be welded at the welding cavity (210), and fix it through the second positioning member (230) and the first positioning member (220); Adjust the reaming portion at any one of the positioning assemblies (140), insert the copper tube into the reaming portion, and ream the outer wall of the copper tube; Install the reamed copper tube and the other copper tube at the first positioning member (220) and the second positioning member (230) respectively, and perform limiting. Then, adjust the reaming portion of the positioning assembly (140) so that the rollers (640) limit the outer wall of the corresponding copper tube; The rotating assembly (240) drives the linkage member (530) to drive the two copper tubes to rotate synchronously, and welding is performed through the welding assembly (130).

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