Refrigeration copper pipe welding defect detection device

Abstract

The invention discloses a refrigeration copper pipe welding defect detection device, belongs to the technical field of defect detection, and provides the following scheme that the refrigeration copper pipe welding defect detection device comprises a detection mechanism, the detection mechanism comprises a base, an installation support is fixedly connected to the upper portion of the base, and two firmness detection assemblies are arranged on the installation support; sealing assemblies are arranged on the two sides of the mounting bracket, one sealing assembly is connected with an air tightness detection assembly, and the air tightness detection assembly is arranged on the base; according to the copper pipe welding firmness detection device, the copper pipe welding firmness can be preliminarily detected through the firmness detection assembly, in the firmness detection process, rotation of a rotating ring can be achieved through cooperation of a walking wheel structure and a spiral groove, the copper pipe is made to rotate automatically, at the moment, a detection probe conducts all-dimensional detection on the welding position, and the detection probe is provided with an image sensor so that the detection purpose can be more accurately achieved; therefore, various defects possibly existing in the copper pipe welding process can be effectively identified, and the welding firmness of the copper pipe can be evaluated and detected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of defect detection, in particular to a refrigeration copper pipe welding defect detection device. BACKGROUND

[0002] The refrigeration copper pipe is the core fluid conveying component of the refrigeration system, and the welding quality directly determines the operation stability and safety of the refrigeration system. If there are defects such as cracks, pores and incomplete penetration at the welding position, it will cause refrigerant leakage, which not only reduces the refrigeration efficiency and increases the energy consumption, but also may cause safety accidents due to the flammable and explosive characteristics of the refrigerant. At the same time, if the welding firmness is insufficient, the joint may be broken under the action of system vibration or external force, causing the system to stop. Therefore, comprehensive and accurate defect detection of the welding position of the refrigeration copper pipe is a key link in the production and installation of refrigeration equipment. However, the common detection device relies on a single image sensor for static appearance detection, can only capture surface defects, and cannot detect whether the connection strength of the copper pipe weld has defects, cannot simultaneously detect internal defects and firmness, and is easy to miss internal implicit defects. Some devices with tension detection function cannot realize full-circle detection of the welding position during the detection process, and are designed as single-station, so the detection and copper pipe taking and placing need to be alternately performed, which is low in efficiency. In addition, the sealing performance detection needs to be operated separately and cannot be integrated into the integrated detection process, which cannot meet the detection requirements of high efficiency, comprehensiveness and accuracy for the production of refrigeration copper pipes.

[0003] In view of the above problems, the present application provides a refrigeration copper pipe welding defect detection device. SUMMARY

[0004] The present application aims to solve the problems of the common detection device relying on a single image sensor for static appearance detection, failing to simultaneously detect internal defects and firmness, and being easy to miss internal implicit defects, and the device with tension detection function failing to realize full-circle detection of the welding position during the detection process, being designed as single-station, and being low in efficiency, and the sealing performance detection needing to be operated separately and being difficult to be integrated into the integrated detection process, and provides a refrigeration copper pipe welding defect detection device.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A refrigeration copper pipe welding defect detection device, comprising a detection mechanism, the detection mechanism comprising a base, a mounting bracket is fixedly connected above the base, two firmness detection assemblies are arranged on the mounting bracket, a sealing assembly is arranged on each side of the mounting bracket, one of the sealing assemblies is connected with an airtightness detection assembly, the airtightness detection assembly is arranged on the base, an upper feeding assembly is further arranged on the base, and a plurality of clamping mechanisms are arranged on the upper feeding assembly.

[0007] The clamping mechanism comprises two rotating rings, a plurality of clamping assemblies are arranged in the rotating rings, the plurality of clamping assemblies on both sides clamp the two ends of the copper pipe respectively, the rotating rings are rotatably installed on the outer ring plates through bearings, the two outer ring plates are connected with two calibration assemblies on both sides respectively, the calibration assemblies are provided with walking wheel structures, the two walking wheel structures are slidingly connected in the spiral grooves, and the spiral grooves are arranged outside the rotating rings.

[0008] Preferably, the air tightness detection assembly comprises a detection fan, the detection fan is installed on the base, the detection fan is communicated with the pressure gauge, and the pressure gauge is provided with a hose structure.

[0009] Preferably, the sealing assembly comprises an electric push rod, the electric push rod is fixedly connected to the mounting bracket, one end of the electric push rod is fixedly connected with a sealing head, and one end of the hose structure penetrates into the sealing head and extends out from the other side of the sealing head.

[0010] Preferably, the firmness detection assembly comprises a bidirectional electric hydraulic push rod, the bidirectional electric hydraulic push rod is fixedly installed on the mounting bracket, a detection probe is fixedly installed above the mounting bracket, and the two ends of the bidirectional electric hydraulic push rod are fixedly connected with push discs.

[0011] Preferably, the feeding assembly comprises two fixed frames and two rotating frames, one of the fixed frames is fixedly installed with a driving structure, the driving structure is engaged with a gear ring, and the gear ring and the rotating frame are rotatably installed on the fixed frame through a bearing.

[0012] Preferably, the calibration assembly comprises two movable sleeves, the two movable sleeves are fixedly connected to the two outer ring plates respectively, the movable sleeves are slidingly connected to movable rods, and the movable rods are fixedly connected to the two rotating frames on both sides.

[0013] Preferably, a calibration ring is fixedly connected between the two movable rods, first springs are fixedly connected to the two sides of the calibration ring, and one end of the first spring is fixedly connected to the movable sleeve.

[0014] Preferably, the clamping assembly comprises a clamping frame, the clamping frame is fixedly connected to the rotating ring, the two side walls of the clamping frame are fixedly connected to the two ends of two sliding rods respectively, a sliding sleeve is sleeved on the sliding rod, and movable plates are installed on the two sliding sleeves.

[0015] Preferably, an adjusting cylinder is fixedly installed on the movable plate, and a clamping plate structure is fixedly connected to one end of the adjusting cylinder.

[0016] Preferably, a second spring is fixedly connected to one side of the sliding sleeve, and one end of the second spring is fixedly connected to the side wall of the fixed frame.

[0017] Compared with the prior art, the refrigeration copper pipe welding defect detection device has the following beneficial effects:

[0018] 1. The refrigeration copper pipe welding defect detection device can preliminarily detect the firmness of the copper pipe welding through the firmness detection assembly. During the firmness detection process, the rotation of the rotating ring is realized by the cooperation of the walking wheel structure and the spiral groove, so that the copper pipe rotates. At this time, the detection probe performs omnibearing detection on the welding position. The detection probe is equipped with an image sensor, which can more accurately realize the detection purpose. Therefore, not only can various defects possibly existing in the copper pipe welding process be effectively identified, but also the firmness of the copper pipe welding can be evaluated and detected.

[0019] 2. The refrigeration copper pipe welding defect detection device can realize the automatic circulation of the clamping assembly through the feeding assembly, so that the copper pipe automatically circulates between stations. During the firmness and welding defect detection, the firmness detection assembly detects the firmness of the copper pipe. During the firmness detection, the walking wheel structure cooperates with the spiral groove to realize the rotation of the copper pipe, so that the detection probe can be comprehensively detected. Then, the gas tightness detection assembly is used for detection, so that the purpose of continuous detection is realized, and the detection efficiency is improved.

[0020] 3. The refrigeration copper pipe welding defect detection device realizes the automatic circulation of the copper pipe to different stations through the feeding assembly. The firmness detection assembly can detect the firmness of the copper pipe welding. At the same time, the walking wheel structure cooperates with the spiral groove to realize the rotation of the copper pipe during firmness detection, so that the detection probe can accurately detect the welding position in all directions. The two detection stations are synchronized, the time is shortened, and after detection, the gas tightness detection assembly cooperates with the sealing assembly to realize the gas tightness detection of the copper pipe. This mode realizes seamless connection and automatic shunting between stations. Multiple detection stations and feeding and discharging stations do not need to wait for a long time, and can automatically circulate to the next station, forming an efficient and smooth automatic detection assembly line. This design not only significantly improves the overall efficiency of copper pipe detection and reduces production costs, but also has simple operation, simple structure, easy maintenance and management. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective view of a refrigeration copper pipe welding defect detection device is provided for the present application;

[0022] Figure 2 A perspective view of a detection mechanism of a refrigeration copper pipe welding defect detection device is provided for the present application;

[0023] Figure 3 A perspective view of a mounting bracket of a refrigeration copper pipe welding defect detection device is provided for the present application;

[0024] Figure 4 An enlarged view of A in the present application Figure 3 ;

[0025] Figure 5 A stereoscopic view of the feeding assembly of the refrigeration copper pipe welding defect detection device according to the present application;

[0026] Figure 6 A stereoscopic view of the outer ring plate and calibration assembly of the refrigeration copper pipe welding defect detection device according to the present application;

[0027] Figure 7 A stereoscopic view of the steel pipe positioning of the clamping assembly of the refrigeration copper pipe welding defect detection device according to the present application;

[0028] Figure 8 A cross-sectional stereoscopic view of the rotary ring of the refrigeration copper pipe welding defect detection device according to the present application;

[0029] Figure 9 An enlarged view of B in the present application Figure 8

[0030] Figure 10 A stereoscopic view of the clamping assembly of the refrigeration copper pipe welding defect detection device according to the present application.

[0031] In the figure: 100, detection mechanism; 101, base; 102, air tightness detection assembly; 1021, detection fan; 1022, pressure gauge; 1023, hose structure; 103, sealing assembly; 1031, electric push rod; 1032, sealing head; 104, mounting bracket; 105, detection probe; 106, firmness detection assembly; 1061, bidirectional electric hydraulic push rod; 1062, push disc; 107, feeding assembly; 1071, driving structure; 1072, fixing frame; 1073, rotating frame; 1074, gear ring; 200, clamping mechanism; 201, rotary ring; 202, helical groove; 203, calibration assembly; 2031, movable rod; 2032, first spring; 2033, movable sleeve; 2034, calibration ring; 204, walking wheel structure; 205, clamping assembly; 2051, clamping frame; 2052, adjusting cylinder; 2053, clamping plate structure; 2054, sliding rod; 2055, second spring; 2056, movable plate; 2057, sliding sleeve; 206, outer ring plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0033] ​In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] Embodiment 1: Reference Figures 1-3 and Figures 6-10 A refrigeration copper pipe welding defect detection device, comprising a detection mechanism 100, the detection mechanism 100 comprising a base 101, the upper portion of the base 101 is fixedly connected with a mounting bracket 104, two firmness detection assemblies 106 are arranged on the mounting bracket 104, the firmness detection assembly 106 comprises a bidirectional electric hydraulic push rod 1061, the bidirectional electric hydraulic push rod 1061 is fixedly installed on the mounting bracket 104, a detection probe 105 is fixedly installed on the upper portion of the mounting bracket 104, the welding defects of the copper pipe can be detected through the detection probe 105, both ends of the bidirectional electric hydraulic push rod 1061 are fixedly connected with a push disc 1062, the bidirectional electric hydraulic push rod 1061 drives the push disc 1062 to move, so that the push disc 1062 exerts a pushing force on the outer ring plate 206, since the clamping assembly 205 clamps the copper pipe, at this time, a dragging force can be generated on both ends of the copper pipe, thereby the firmness of the copper pipe welding can be detected, the mounting bracket 104 is provided with a sealing assembly 103 on both sides, one of the sealing assemblies 103 is connected with an airtightness detection assembly 102, the airtightness detection assembly 102 is arranged on the base 101, the base 101 is further provided with a feeding assembly 107, a plurality of clamping mechanisms 200 are arranged on the feeding assembly 107;

[0035] The clamping mechanism 200 comprises two rotating rings 201, a plurality of clamping assemblies 205 are arranged in the rotating rings 201, the clamping assemblies 205 comprise clamping frames 2051, the clamping frames 2051 are fixedly connected to the rotating rings 201, two side walls of the clamping frames 2051 are fixedly connected to two ends of two sliding rods 2054 respectively, a sliding sleeve 2057 is sleeved on the sliding rod 2054, the sliding rod 2054 and the sliding sleeve 2057 are in sliding fit, so that the clamping frames 2051 and the rotating rings 201 can smoothly move in translation, the cooperation between the helical groove 202 and the walking wheel structure 204 ensures that the rotation of the rotating ring 201 is smoothly realized, the movable plates 2056 are installed on the two sliding sleeves 2057, the adjusting cylinders 2052 are fixedly installed on the movable plates 2056, the clamping plate structures 2053 are fixedly connected to one end of the adjusting cylinders 2052, the second springs 2055 are fixedly connected to one side of the sliding sleeves 2057, the second springs 2055 can realize the positioning of the sliding sleeves 2057, so that the position of the adjusting cylinders 2052 is stable, one end of the second spring 2055 is fixedly connected to the side wall of the fixed frame 1072, the plurality of clamping assemblies 205 on the two sides clamp the two ends of the copper pipe respectively, the rotating ring 201 is rotatably installed on the outer ring plate 206 through a bearing, the two outer ring plates 206 are connected to two calibration assemblies 203 respectively, the calibration assembly 203 comprises two movable sleeves 2033, the two movable sleeves 2033 are fixedly connected to the two outer ring plates 206 respectively, the movable sleeves 2033 are slidably connected to the movable rods 2031, the movable sleeves 2033 slide on the movable rods 2031, so that the stable movement of the outer ring plate 206 is ensured, the movable rods 2031 on the two sides are fixedly connected to two rotating frames 1073 respectively, the calibration ring 2034 is fixedly connected between the two movable rods 2031, the calibration ring 2034 can calibrate the welding position of the copper pipe, so that the subsequent detection probe 105 can accurately detect the welding position of the copper pipe, the first springs 2032 are fixedly connected to the two sides of the calibration ring 2034, the positions of the movable sleeves 2033 are kept through the first springs 2032, so that the outer ring plate 206 and the rotating ring 201 are stable, and the problem of easy sliding displacement is avoided, one end of the first spring 2032 is fixedly connected to the movable sleeve 2033, the walking wheel structure 204 is arranged on the calibration assembly 203, the two walking wheel structures 204 are slidably connected in the helical groove 202, through the arc surface design of the helical groove 202, the helical groove 202 and the walking wheel structure 204 can smoothly cooperate to realize the rotation of the rotating ring 201, the detection probe 105 can comprehensively detect the welding position of the copper pipe, and driving equipment does not need to be additionally increased, the cost is reduced, and the helical groove 202 is arranged outside the rotating ring 201.

[0036] In this embodiment: the push disc 1062 is moved by the bidirectional electric hydraulic push rod 1061, the outer ring plate 206 is moved by the push disc 1062, and then the copper pipe welding firmness is preliminarily detected through the rotating ring 201 and the clamping assembly 205. In the firmness detection process, the rotating ring 201 is displaced, the helical groove 202 can cooperate with the walking wheel structure 204 to rotate the rotating ring 201, the clamping assembly 205 drives the copper pipe to rotate, the detection probe 105 performs omnibearing detection on the welding position at this time, and the detection probe 105 is equipped with an image sensor to more accurately achieve the detection purpose. Therefore, not only can various defects possibly existing in the copper pipe welding process be effectively identified, but also the firmness of the copper pipe welding can be evaluated and detected.

[0037] Embodiment 2: Refer to Figures 2-5 A refrigeration copper pipe welding defect detection device includes a gas tightness detection assembly 102. The gas tightness detection assembly 102 includes a detection fan 1021. The detection fan 1021 can supply gas to the copper pipe. After a certain gas pressure value is reached, the pressure value change can be observed in cooperation with a pressure gauge 1022. In this way, the gas tightness of the copper pipe can be detected. The detection fan 1021 is installed on a base 101. The detection fan 1021 is in communication with the pressure gauge 1022. A hose structure 1023 is arranged on the pressure gauge 1022. The hose structure 1023 can be smoothly connected with the steel pipe, so that the detection fan 1021 can supply gas. In addition, the hose structure 1023 can be telescopic, so that a sealing head 1032 can be smoothly moved.

[0038] The sealing assembly 103 includes an electric push rod 1031. The electric push rod 1031 is fixedly connected to a mounting bracket 104. One end of the electric push rod 1031 is fixedly connected to the sealing head 1032. The sealing head 1032 is moved by the electric push rod 1031. The sealing head 1032 seals the two ends of the copper pipe, so as to ensure the sealing property of the copper pipe. In this way, the copper pipe gas tightness detection is facilitated. One end of the hose structure 1023 penetrates into the sealing head 1032 and extends out from the other side of the sealing head 1032.

[0039] The feeding assembly 107 includes two fixed frames 1072 and two rotating frames 1073. One of the fixed frames 1072 is fixedly installed with a driving structure 1071. The driving structure 1071 is engaged with a gear ring 1074. The driving structure 1071 is composed of a motor and a gear. The motor drives the gear to be in transmission with the gear ring 1074. In this way, the rotating frame 1073 can be rotated by the bearing. The gear ring 1074 and the rotating frame 1073 are rotatably installed on the fixed frame 1072 by the bearing.

[0040] In this embodiment: the gear ring 1074 is driven to rotate by the driving structure 1071, the gear ring 1074 drives the rotating frame 1073 to rotate through the bearing, the rotating frame 1073 can drive the clamping assembly 205 to automatically flow through the calibration assembly 203, so that the copper pipe automatically flows between the workstations, in the firmness and welding defect detection, the firmness detection assembly 106 detects the firmness of the copper pipe, and during the firmness detection, the walking wheel structure 204 cooperates with the spiral groove 202 to realize the rotation of the copper pipe, so that the detection probe 105 can detect comprehensively, and then the copper pipe is conveyed to the air tightness detection position, the sealing assembly 103 seals the copper pipe, at this time the air tightness detection assembly 102 detects the air tightness of the copper pipe, so that the purpose of continuous detection can be realized, and the detection efficiency is improved.

[0041] Embodiment 3: refer to Figures 1-2 and Figures 6-7 A refrigeration copper pipe welding defect detection device, comprising a detection mechanism 100, the detection mechanism 100 comprising a base 101, the upper portion of the base 101 is fixedly connected with a mounting bracket 104, the mounting bracket 104 is provided with two firmness detection assemblies 106, the two sides of the mounting bracket 104 are provided with sealing assemblies 103, one of the sealing assemblies 103 is connected with an air tightness detection assembly 102, the air tightness detection assembly 102 is arranged on the base 101, the base 101 is further provided with a feeding assembly 107, the feeding assembly 107 is provided with a plurality of clamping mechanisms 200.

[0042] The clamping mechanism 200 comprises two rotating rings 201, a plurality of clamping assemblies 205 are arranged in the rotating ring 201, the plurality of clamping assemblies 205 on the two sides respectively clamp the two ends of the copper pipe, the rotating ring 201 is rotatably installed on the outer ring plate 206 through the bearing, the two sides of the two outer ring plates 206 are respectively connected with two calibration assemblies 203, the calibration assembly 203 is provided with a walking wheel structure 204, the two walking wheel structures 204 are slidingly connected in the spiral groove 202, and the spiral groove 202 is opened in the rotating ring 201.

[0043] In this embodiment: through the feeding assembly 107 to realize the automatic flow of copper pipe to different stations, through the firmness detection assembly 106, the copper pipe welding firmness can be detected, at the same time, the firmness detection can be linked with the walking wheel structure 204 to cooperate with the spiral groove 202 to realize the rotation of the copper pipe, so that the detection probe 105 can conduct all-round accurate detection on the welding position, so that the two detection stations are synchronized, the time is shortened, after detection, the air tightness detection assembly 102 cooperates with the sealing assembly 103 to realize the air tightness detection of the copper pipe, this way realizes the seamless connection and automatic shunting between stations, multiple detection stations and feeding and discharging stations do not need to wait for a long time, and can automatically flow to the next station, forming an efficient and smooth automatic detection assembly line, this design not only significantly improves the overall efficiency of copper pipe detection and reduces production cost, but also the whole system is easy to operate, simple in structure, easy to maintain and manage.

[0044] Working principle: when the copper pipe is detected, the copper pipe is placed in the two rotating rings 201, and the position of the welding part is calibrated through the calibration ring 2034, then the clamping plate structure 2053 is pushed to move by adjusting the cylinder 2052, so that the clamping plate structure 2053 realizes positioning on both ends of the copper pipe, then the driving structure 1071 and the gear ring 1074 are controlled and transmitted, the gear ring 1074 drives the rotating frame 1073 to rotate through the bearing, so that the clamping mechanism 200 rotates, and the copper pipe moves with the clamping mechanism 200, when the copper pipe is located at the position of the upper detection probe 105, the two push discs 1062 are pushed to move by the bidirectional electric hydraulic push rod 1061, the push disc 1062 applies force to the outer ring plate 206, if the clamping assembly 205 keeps clamping the copper pipe firmly, the force acts on both ends of the copper pipe at this time, and a drag force is generated, so as to detect the welding firmness of the copper pipe;

[0045] If the copper pipe does not break, at this time the outer ring plate 206 moves alone through the sliding sleeve 2057, and the rotating ring 201 moves, so that the rotating ring 201 can rotate through the cooperation of the spiral groove 202 and the walking wheel structure 204, the rotating ring 201 drives the copper pipe to rotate through the clamping assembly 205, the rotation of the copper pipe can make the detection probe 105 detect the welding part comprehensively,

[0046] After detection, the firmness detection assembly 106 resets, continues to convey the copper pipe to the air tightness detection position, and pushes the sealing head 1032 to seal both ends of the copper pipe through the electric push rod 1031, then the detection fan 1021 inputs air into the copper pipe through the hose structure 1023, stops air input after reaching a certain preset value, and knows whether there is a problem of air tightness defect through the change of the pressure gauge 1022, after detection, the sealing head 1032 is opened, the copper pipe is conveyed to the initial position, the copper pipe is removed, and the copper pipe is reassembled for continuous detection operation.

[0047] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical scope disclosed by the present application and according to the technical solutions and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for detecting welding defects in refrigeration copper pipes, comprising a detection mechanism (100), characterized in that, The testing mechanism (100) includes a base (101), and a mounting bracket (104) is fixedly connected above the base (101). Two robustness testing components (106) are provided on the mounting bracket (104). Sealing components (103) are provided on both sides of the mounting bracket (104). One of the sealing components (103) is connected to an airtightness testing component (102). The airtightness testing component (102) is provided on the base (101). A feeding component (107) is also provided on the base (101). Multiple clamping mechanisms (200) are provided on the feeding component (107). The clamping mechanism (200) includes two rotating rings (201), each with a plurality of clamping components (205). The clamping components (205) on both sides clamp the two ends of the copper tube respectively. The rotating rings (201) are rotatably mounted on the outer ring plates (206) via bearings. The two outer ring plates (206) are connected to two calibration components (203) on both sides respectively. The calibration components (203) are provided with a traveling wheel structure (204), which is slidably connected in a spiral groove (202) outside the rotating rings (201).

2. The refrigeration copper pipe welding defect detection device according to claim 1, characterized in that, The airtightness testing component (102) includes a testing fan (1021), which is mounted on a base (101). The testing fan (1021) is connected to a pressure gauge (1022), and the pressure gauge (1022) is provided with a hose structure (1023).

3. The refrigeration copper pipe welding defect detection device according to claim 2, characterized in that, The sealing assembly (103) includes an electric push rod (1031) which is fixedly connected to the mounting bracket (104). One end of the electric push rod (1031) is fixedly connected to a sealing head (1032). One end of the hose structure (1023) passes through the sealing head (1032) and extends out from the other side of the sealing head (1032).

4. The refrigeration copper pipe welding defect detection device according to claim 1, characterized in that, The robustness detection component (106) includes a bidirectional electro-hydraulic push rod (1061), which is fixedly mounted on a mounting bracket (104). A detection probe (105) is fixedly mounted above the mounting bracket (104), and push plates (1062) are fixedly connected to both ends of the bidirectional electro-hydraulic push rod (1061).

5. The refrigeration copper pipe welding defect detection device according to claim 1, characterized in that, The feeding assembly (107) includes two fixed frames (1072) and two rotating frames (1073). A drive structure (1071) is fixedly installed on one of the fixed frames (1072). The drive structure (1071) meshes with a gear ring (1074). The gear ring (1074) and the rotating frame (1073) are rotatably mounted on the fixed frame (1072) through bearings.

6. The refrigeration copper pipe welding defect detection device according to claim 5, characterized in that, The calibration component (203) includes two movable sleeves (2033), which are fixedly connected to two outer ring plates (206) respectively. The movable sleeves (2033) are slidably connected to movable rods (2031), and the movable rods (2031) on both sides are fixedly connected to two rotating frames (1073) respectively.

7. The refrigeration copper pipe welding defect detection device according to claim 6, characterized in that, A calibration ring (2034) is fixedly connected between the two movable rods (2031). A first spring (2032) is fixedly connected to both sides of the calibration ring (2034). One end of the first spring (2032) is fixedly connected to the movable sleeve (2033).

8. The refrigeration copper pipe welding defect detection device according to claim 1, characterized in that, The clamping assembly (205) includes a clamping frame (2051), which is fixedly connected to the rotating ring (201). The two side walls of the clamping frame (2051) are fixedly connected to the two ends of two slide rods (2054), and slide sleeves (2057) are sleeved on the slide rods (2054). Movable plates (2056) are installed on the two slide sleeves (2057).

9. The refrigeration copper pipe welding defect detection device according to claim 8, characterized in that, An adjusting cylinder (2052) is fixedly installed on the movable plate (2056), and a clamping plate structure (2053) is fixedly connected to one end of the adjusting cylinder (2052).

10. A welding defect detection device for refrigeration copper pipes according to claim 9, characterized in that, A second spring (2055) is fixedly connected to one side of the sliding sleeve (2057), and one end of the second spring (2055) is fixedly connected to the side wall of the fixing frame (1072).

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