Copper pipe welding seam detection device

By using multi-angle, blind-spot-free radiographic testing of copper pipe weld seams, the problem of the inability to comprehensively inspect the internal welding effect of copper pipe weld seams in existing technologies has been solved, achieving efficient and reliable inspection of copper pipe weld seams.

CN224216594UActive Publication Date: 2026-05-08SHENZHEN SANYING PRECISION INSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SANYING PRECISION INSTR CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing technologies cannot fully detect the internal welding effect of copper pipe welds, especially lacking dynamic detection of connection strength.

Method used

The copper pipe weld inspection device includes a shielded room, a frame, an inspection conveyor assembly, a flat panel detector, a detector drive assembly, an X-ray source, and an X-ray source drive assembly. It achieves comprehensive inspection of internal welds through multi-angle, blind-spot-free X-ray inspection.

Benefits of technology

It enables multi-angle, blind-spot-free inspection of copper pipe welds, effectively detecting the internal quality of the welds and ensuring the reliability of copper pipe connections.

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Abstract

The utility model discloses a copper pipe welding seam detection device which comprises a shielding room, a rack, a detection conveying line assembly, a flat panel detector 3, a detector driving assembly, a radiation source, a radiation source driving assembly and an electric cabinet, a feeding detection opening is formed in the shielding room, a lifting shielding door assembly is arranged on the feeding detection opening, and the rack is arranged in the shielding room. The detection conveying line assembly is arranged on the rack and used for receiving products to be detected, the flat panel detector 3 is arranged in the rack, the detector driving assembly is arranged on the rack and located above a detection conveying line, and the flat panel detector 3 is installed on the detector driving assembly and driven by the detector driving assembly to move and turn over. The radiation source is arranged in the rack, the radiation source driving assembly is arranged on the rack and located below the detection conveying line, and the radiation source is installed on the radiation source driving assembly. The device has the advantages of simple structure, reasonable design, capability of multi-angle dead-angle-free detection and the like.
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Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, specifically relating to a copper pipe weld testing device. Background Technology

[0002] In air conditioning systems, copper pipes are responsible for transporting refrigerant from the compressor to the condenser, expansion valve, and evaporator to complete the refrigeration cycle. Air conditioning copper pipes are generally made of copper (also known as red copper), which has excellent thermal conductivity, corrosion resistance, and pressure resistance. They are a crucial component of air conditioning systems, carrying the circulating flow of refrigerant and playing a key role in ensuring the cooling effect of the air conditioner.

[0003] During the manufacturing process of air conditioning refrigeration copper pipes, defect detection at the weld positions is crucial for ensuring the normal operation of the refrigeration system and avoiding potential leakage risks. Currently, defect detection of refrigeration copper pipes is mainly achieved through visual inspection, using the naked eye or visual inspection systems to observe the weld surface for defects such as bubbles, cracks, and inclusions. This inspection method is simple and easy to implement, but it can only perform a static inspection of the copper pipe weld position and cannot detect defects in the connection strength of the copper pipe weld, thus limiting its effectiveness.

[0004] Patent application number 202411868001.8 discloses a welding defect detection device for air conditioning refrigeration copper pipes, including a base. The base is characterized by symmetrically arranged positioning components on both sides of its upper end. Each positioning component includes a shell with a central through hole. A copper pipe to be tested is horizontally inserted between the central through holes of the shell. A fixed crossbeam is fixedly arranged between the top ends of the shell. Fixed ring frames are fixedly arranged at both ends of the bottom of the fixed crossbeam. Movable ring frames are rotatably installed inside each fixed ring frame. Two movable ring frames are fixedly connected by mounting plates. There are four sets of mounting plates arranged in a cross shape. A pressure component is arranged on the top mounting plate, and a detection component is arranged on the bottom mounting plate. A camera and a laser detector are fixedly arranged on the left and right mounting plates, respectively. The weld seam of the copper pipe to be tested is located between the pressure component, the detection component, and the camera. Between the laser detector and the pressure assembly, the pressure component includes a bidirectional screw, both ends of which are rotatably mounted in rotating seats on the mounting plate. The bidirectional screw is driven by a rotating motor. Sliding seats are threaded through the threaded sections at both ends of the bidirectional screw and are slidably mounted in grooves on the mounting plate. The bottom of the sliding seat is rotatably engaged with one end of a connecting rod, and the other end of the connecting rod is rotatably engaged with the side wall of the slide cylinder. A fixed shaft is slidably mounted through the slide cylinder along the axial direction. The top end of the fixed shaft is fixedly connected to the mounting plate, and a buffer spring is provided between the bottom end of the fixed shaft and the slide cylinder. A punch head is fixedly mounted at the bottom of the slide cylinder, and the punch head is aligned with the weld joint of the copper tube to be tested. The laser detector, in conjunction with a camera, performs circumferential static detection of the weld position of the copper tube to be tested, and the detection assembly, in conjunction with the pressure assembly, performs circumferential dynamic detection of the weld position of the copper tube to be tested.

[0005] This air conditioning refrigeration copper pipe welding defect detection device is designed to stabilize the copper pipe for detection, but it still cannot fully detect the welding effect inside the copper pipe weld. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a copper pipe weld inspection device that can perform multi-angle, blind-angle inspections.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A copper pipe weld inspection device, comprising:

[0009] The shielded room is equipped with a material inlet inspection port, which is equipped with a lifting shielded door assembly.

[0010] The rack is installed inside a shielded room;

[0011] The inspection conveyor assembly is mounted on a frame and is used to receive products to be inspected;

[0012] Flat panel detector, installed inside the rack;

[0013] The detector drive assembly is mounted on the frame and located above the detection conveyor line. The flat panel detector is mounted on the detector drive assembly, and the detector drive assembly drives the flat panel detector to move and rotate.

[0014] The radiation source is located inside the rack;

[0015] The X-ray source drive assembly is mounted on the frame and located below the detection conveyor line. The X-ray source is mounted on the X-ray source drive assembly, which drives the X-ray source to move and rotate.

[0016] And the electrical control box, which is connected to the lifting shielding door assembly, the detector drive assembly, the flat panel detector, the radiation source, and the radiation source drive assembly.

[0017] Preferably, the detection conveyor assembly includes a detection conveyor line and a detection fixture, the detection fixture being placed on the detection conveyor line and having a V-shaped detection placement groove on it.

[0018] Preferably, the lifting shielding door assembly includes a first driving component, a sliding track, and a lifting shielding door. The sliding track and the first driving component are installed on the shielding room. The lifting shielding door is slidably connected to the sliding track. The first driving component is connected to the lifting shielding door and drives the lifting shielding door to rise and fall to open or close the feed detection port. The first driving component is connected to the electrical control box.

[0019] Preferably, the detector driving assembly includes a first X-axis module, a Z-axis module, and a second driving component. The first X-axis module is mounted on the frame, and the Z-axis module is connected to the first X-axis module. The first X-axis module drives the Z-axis module to move left and right. The second driving component is connected to the Z-axis module, and the Z-axis module drives the second driving component to move up and down. The flat panel detector is connected to the second driving component, and the second driving component drives the flat panel detector to flip. The first X-axis module, the Z-axis module, and the second driving component are connected to the electrical control box. The first X-axis module, the Z-axis module, the second driving component, and the flat panel detector are all located above the detection fixture.

[0020] Preferably, the X-ray source driving assembly includes a second X-axis module and a third driving component. The second X-axis module is mounted on the frame, and the third driving component is mounted on the second X-axis module. The second X-axis module drives the third driving component to move left and right. The X-ray source is connected to the third driving component, and the third driving component drives the X-ray source to rotate. Both the second X-axis module and the third driving component are connected to the electrical control box.

[0021] By adopting the above technical solution, this utility model has the following beneficial effects:

[0022] This utility model includes components such as a flat panel detector, a detector driving assembly, a radiation source, and a radiation source driving assembly. In specific applications, the flat panel detector can move left, right, up, down, and flip, and the radiation source can also move left, right, and flip, emitting radiation from multiple angles to perform no-dead-angle detection on each product on the detection conveyor assembly. The overall structure is simple and the design is reasonable.

[0023] In summary, this utility model has the advantages of simple structure, reasonable design, and multi-angle detection without blind spots. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 yes Figure 1 A structural diagram showing the structure without the shielding room and the lifting shielding door;

[0026] The components include: shielded room 1, rack 2, flat panel detector 3, X-ray source 4, electrical control box 5, feed detection port 6, first drive unit 7, sliding rail 8, lifting shielded door 9, detection conveyor line 10, detection fixture 11, first X-axis module 12, Z-axis module 13, second drive unit 14, second X-axis module 15, and third drive unit 16. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Example 1

[0033] In this embodiment, a copper pipe weld inspection device is proposed, which can inspect the weld of copper pipes. It can inspect from multiple angles without blind spots. In specific inspection, the device can be inserted into the device by a robotic arm to complete the inspection. The product to be inspected in this invention is mainly a copper pipe, that is, a copper pipe used in air conditioners.

[0034] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, the copper pipe weld inspection device of this utility model includes a shielded room 1, a frame 2, an inspection conveyor assembly, a flat panel detector 3, a detector drive assembly, an X-ray source 4, an X-ray source drive assembly, and an electrical control box 5. The shielded room 1 is provided with a material inlet 6. The shielded room 1 is mainly a lead room. The material inlet 6 is provided with a lifting shielding door 9 assembly. In specific use, material can be fed through the material inlet 6, such as by a robotic arm. The lifting shielding door 9 assembly includes a first drive component 7, a sliding rail 8, and a lifting shielding door 9. The sliding rail 8 and the first drive component 7 are set on the shielded room 1. The lifting shielding door 9 is slidably connected to the sliding rail 8. The first drive component 7 is connected to the lifting shielding door 9 and drives the lifting shielding door 9 to rise and fall to open or close the material inlet 6. The first drive component 7 is connected to the electrical control box 5. The first drive component 7 can mainly be a drive cylinder or other components. The X-ray source 4 is adapted to the flat panel detector 3 to perform X-ray inspection.

[0035] The frame 2 of this utility model is set inside the shielded room 1. The detection conveyor assembly is set on the frame 2 and is used to receive the product to be tested (i.e., the product that needs to be tested for copper pipe welds). The flat plate detector 3 is set inside the frame 2. The detector drive assembly is set on the frame 2 and is located above the detection conveyor 10. The flat plate detector 3 is mounted on the detector drive assembly and the detector drive assembly drives the flat plate detector 3 to move and flip. The X-ray source 4 is set inside the frame 2. The X-ray source drive assembly is set on the frame 2 and is located below the detection conveyor 10. The X-ray source 4 is mounted on the X-ray source drive assembly and the X-ray source drive assembly drives the X-ray source 4 to move and flip. The electrical control box 5 is connected to the lifting shielded door 9 assembly, the detector drive assembly, the flat plate detector 3, the X-ray source 4, and the X-ray source drive assembly. The electrical control box 5 is set on the side of the shielded room 1.

[0036] The testing conveyor assembly of this utility model includes a testing conveyor 10 and a testing fixture 11. The testing fixture 11 is placed on the testing conveyor 10, which is located in a shielded room. The testing fixture 11 is provided with a V-shaped testing placement groove. The testing conveyor 10 of this utility model can be a separate placement platform or a conveyor belt, thereby meeting the product testing requirements.

[0037] Please continue to refer to Figure 2 The detector driving assembly of this utility model includes a first X-axis module 12, a Z-axis module 13, and a second driving component 14. The first X-axis module 12 is mounted on the frame 2, and the Z-axis module 13 is connected to the first X-axis module 12. The first X-axis module 12 drives the Z-axis module 13 to move left and right. The second driving component 14 is connected to the Z-axis module 13, and the Z-axis module 13 drives the second driving component 14 to move up and down. The flat panel detector 3 is connected to the second driving component 14, and the second driving component 14 drives the flat panel detector 3 to rotate. The first X-axis module 12, the Z-axis module 13, and the second driving component 14... 4 is connected to the electrical control box 5. The first X-axis module 12, Z-axis module 13, second drive unit 14 and flat panel detector 3 are all located above the detection fixture 11. The X-ray source drive assembly includes the second X-axis module 15 and the third drive unit 16. The second X-axis module 15 is set on the frame 2, and the third drive unit 16 is set on the second X-axis module 15. The second X-axis module 15 drives the third drive unit 16 to move left and right. The X-ray source 4 is connected to the third drive unit 16. The third drive unit 16 drives the X-ray source 4 to rotate. The second X-axis module 15 and the third drive unit 16 are both connected to the electrical control box 5.

[0038] The second driving component 14 and the third driving component 16 of this utility model can be components from the prior art, such as a rotary motor and a reducer or rotary cylinder. They can drive the flat panel detector 3 and the X-ray source 4 to rotate, respectively. In specific use, the product to be tested is sent into the shielded room 1 of this utility model. The flat panel detector 3 and the X-ray source 4 are started and adjusted to a suitable position. The flat panel detector 3 and the X-ray source 4 cooperate with each other. The X-ray source 4 emits X-rays that pass through the product to be tested to the flat panel detector 3 to complete the detection of the product without blind spots. During the detection process, the first X-axis module 12 and the Z-axis module 13 can cooperate with each other to drive the flat panel detector 3 to move left and right and up and down. The second driving component 14 can drive the flat panel detector 3 to rotate a certain angle to facilitate detection without blind spots. Similarly, the third driving component 16 can drive the X-ray source 4 to rotate a certain angle, and the second X-axis module 15 can drive the X-ray source 4 to move left and right to facilitate the adjustment of the position of the X-ray source 4. The flat panel detector 3 of this utility model is equipped with multiple cooling fans for heat dissipation.

[0039] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A copper pipe weld inspection device, characterized in that, include: The shielded room is equipped with a material inlet inspection port, which is equipped with a lifting shielded door assembly. The rack is installed inside a shielded room; The inspection conveyor assembly is mounted on a frame and is used to receive products to be inspected; Flat panel detector, installed inside the rack; The detector drive assembly is mounted on the frame and located above the detection conveyor line. The flat panel detector is mounted on the detector drive assembly, and the detector drive assembly drives the flat panel detector to move and rotate. The radiation source is located inside the rack; The X-ray source drive assembly is mounted on the frame and located below the detection conveyor line. The X-ray source is mounted on the X-ray source drive assembly, which drives the X-ray source to move and rotate. And the electrical control box, which is connected to the lifting shielding door assembly, the detector drive assembly, the flat panel detector, the radiation source, and the radiation source drive assembly.

2. The copper pipe weld inspection device according to claim 1, characterized in that: The testing conveyor assembly includes a testing conveyor line and a testing fixture. The testing fixture is placed on the testing conveyor line and has a V-shaped testing placement groove.

3. The copper pipe weld inspection device according to claim 1, characterized in that: The lifting shielding door assembly includes a first driving component, a sliding track, and a lifting shielding door. The sliding track and the first driving component are installed on the shielding room. The lifting shielding door is slidably connected to the sliding track. The first driving component is connected to the lifting shielding door and drives the lifting shielding door to rise and fall to open or close the feed detection port. The first driving component is connected to the electrical control box.

4. The copper pipe weld inspection device according to claim 2, characterized in that: The detector driving assembly includes a first X-axis module, a Z-axis module, and a second driving component. The first X-axis module is mounted on the frame, and the Z-axis module is connected to the first X-axis module. The first X-axis module drives the Z-axis module to move left and right. The second driving component is connected to the Z-axis module, and the Z-axis module drives the second driving component to move up and down. The flat panel detector is connected to the second driving component, and the second driving component drives the flat panel detector to flip. The first X-axis module, the Z-axis module, and the second driving component are connected to the electrical control box. The first X-axis module, the Z-axis module, the second driving component, and the flat panel detector are all located above the detection fixture.

5. The copper pipe weld inspection device according to claim 1, characterized in that: The X-ray source driving assembly includes a second X-axis module and a third driving component. The second X-axis module is mounted on the frame, and the third driving component is mounted on the second X-axis module. The second X-axis module drives the third driving component to move left and right. The X-ray source is connected to the third driving component, and the third driving component drives the X-ray source to rotate. Both the second X-axis module and the third driving component are connected to the electrical control box.

Citation Information

Patent Citations

  • Air conditioner refrigeration copper pipe welding defect detection device

    CN119595465A