X-ray detection device based on automatic CR technology

By opening a limit slot on the tee joint seat and combining an automated design X-ray detection device, the positioning and fixing of the welding position of the tee joint is solved, stable detection and efficient operation are achieved, and detection accuracy and safety are improved.

CN120507378AActive Publication Date: 2025-08-19JIANGSU DIYE TESTING TECH CO LTD
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Patent Information

Application Number
CN202510619089.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2025-08-19
Estimated Expiration
2045-05-14

AI Technical Summary

Technical Problem

In the prior art, the welding position of the tee joint is difficult to accurately position and fix during X-ray detection, resulting in poor detection effect.

Method used

An X-ray detection device based on automated CR technology was designed. By opening a limit slot on the tee joint seat, combined with the automated design of the mobile rack, flip rack and detection cover, it ensures the stable fixation and precise positioning of the tee joint during the detection process, and shields X-ray radiation through the lead layer, reducing manual operation and improving work efficiency.

Benefits of technology

The three-way joint is stable and fixed during the inspection process, avoiding detection errors caused by unstable position, improving detection accuracy and equipment adaptability, ensuring operator safety, and reducing the possibility of defective product rates and human operation errors.

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Abstract

The invention relates to the technical field of X-ray detection, in particular to an X-ray detection device based on the automatic CR technology, which comprises a base, a rotating seat is arranged above the base, a plurality of moving frames are arranged on the rotating seat in a sliding fit manner, a turnover frame is rotatably connected to the moving frames, and a three-way connector seat is mounted on the turnover frame; a fixing column is fixedly connected to one side of the base, a detection cover is arranged on the fixing column in a sliding fit mode, a discharging frame is fixedly connected to one side of the base, a limiting groove matched with a three-way connector is formed in the three-way connector base, and the limiting groove can be accurately matched with the three-way connector in shape; and more stable fixation and positioning of the joint in the detection process are ensured. The three-way connector can be effectively prevented from displacing in the X-ray detection process, the accuracy of the welding seam position in the detection process is guaranteed, and the detection error caused by the unstable position is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of X-ray detection, and in particular to an X-ray detection device based on automated CR technology. Background Art

[0002] X-ray testing is a nondestructive testing method commonly used for materials, components, and structures. It uses X-rays to penetrate objects and detect defects based on the absorption characteristics of different materials. X-ray technology can detect internal defects such as cracks, pores, poor welds, and corrosion, and is widely used in various fields, including industry, medicine, and scientific research.

[0003] In the prior art, document CN118243708A provides a fixture for steel structure X-ray weld inspection equipment. Compared to existing weld inspection devices, this device provides a more comprehensive weld quality inspection. The accompanying fixture securely positions the steel pipe on the inspection device, further enhancing the accuracy of X-ray weld inspection.

[0004] However, while existing technologies can achieve fixed inspection of steel pipes, when inspecting weld locations such as tees, the fixtures used in these technologies cannot fully adapt to the irregular shapes of these workpieces. This makes it difficult to accurately position and limit these workpieces, which in turn affects the effectiveness of weld inspection.

[0005] In summary, the prior art lacks a fixing technology for performing X-ray inspection on the welds of tee joints. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the background technology and to propose an X-ray detection device based on automated CR technology.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an X-ray detection device based on automated CR technology, comprising a base, a rotating seat is provided above the base, a plurality of mobile frames are slidably provided on the rotating seat, a flip frame is rotatably connected to the mobile frame, a three-way joint seat is installed on the flip frame, a fixed column is fixedly connected to one side of the base, a detection cover is slidably provided on the fixed column, and a discharge rack is fixedly connected to one side of the base.

[0008] Preferably, a fixing frame is fixedly connected to the base, an annular frame is fixedly connected to the fixing frame, a guide groove is provided on the top surface of the annular frame, and the guide groove is located on one side of the blanking frame and is arranged in a protruding structure.

[0009] Preferably, a universal joint A is fixedly connected to the bottom end of the rotating seat, the universal joint A is rotatably connected to the fixing frame, and the other end of the universal joint A is fixedly connected to a transmission wheel.

[0010] Preferably, a guide rod is fixedly connected to the bottom end of the movable frame, and the other end of the guide rod is slidingly matched with the inner wall of the guide groove. A universal joint B is rotatably connected to the movable frame, and a worm is fixedly connected to one end of the universal joint B, and a transmission rod is fixedly connected to the other end of the universal joint B. A transmission groove is provided on the outer wall of the transmission rod, and the transmission groove consists of a spiral and a straight line. A fixed head is slidingly matched with the inner wall of the transmission groove, and the fixed head is fixedly connected to the rotating seat.

[0011] Preferably, a worm gear is fixedly connected to one end of the flip frame, the worm gear is meshed with the worm for transmission, a plurality of snap-fit sleeves are fixedly connected to the flip frame, and a CR image board is fixedly connected to the flip frame.

[0012] Preferably, both sides of one end of the three-way joint seat are fixedly connected with a clamping joint, the inner wall of one side of the clamping joint is slidingly fitted with a clamping block, the inner end of the clamping block is fixedly connected with a spring A, the other end of the spring A is fixedly connected to the inner wall of the clamping joint, the outer walls of the clamping joint and the clamping block are movably plugged into the clamping sleeve, the three-way joint seat is provided with a limiting groove, and a matching three-way joint is placed in the limiting groove.

[0013] Preferably, a threaded rod is rotatably connected to the inner wall of the fixing column, a motor is fixedly connected to the bottom end of the threaded rod, and the motor is fixedly connected to the fixing column.

[0014] Preferably, a slider is fixedly connected to one end of the detection cover, one end of the slider is threadedly connected to the threaded rod, the bottom end of the slider is fixedly connected to a gear rod, the inner wall of the bottom end of the gear rod is rotatably connected to a plurality of transmission teeth, one end of the transmission teeth is fixedly connected to a tension spring, the other end of the tension spring is fixedly connected to the inner wall of the gear rod, the transmission teeth are meshed with the transmission wheel for transmission, a lead layer is fixedly connected to the inner wall of the detection cover, and a high-voltage X-ray tube is fixedly connected to the inner wall of the upper end of the detection cover.

[0015] Preferably, a buffer plate is rotatably connected to the unloading rack, a rubber pad is fixedly connected to the top surface of the buffer plate, the bottom surface of the buffer plate is symmetrically structured and rotatably connected with two connecting rods, a U-shaped frame is slidingly fitted on the unloading rack, the U-shaped frame is rotatably connected to the connecting rod, a plurality of springs B are fixedly connected to one side of the U-shaped frame, and the other end of the spring B is fixedly connected to the unloading rack.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By providing a stopper groove on the tee connector base that precisely matches the shape of the tee connector, the stopper groove ensures more stable fixation and positioning of the connector during inspection. This effectively prevents displacement of the tee connector during X-ray inspection, ensuring accurate weld position and avoiding inspection errors caused by unstable positioning. The detachable tee connector base design allows for replacement of tees of different sizes and shapes, increasing the adaptability of the equipment.

[0018] 2. The installation of a detection hood and a lead layer on its inner wall effectively shields X-ray radiation, preventing workers from being exposed to radiation and ensuring operator safety. As the detection hood moves upward, it drives the rotating base to rotate intermittently, allowing the equipment to switch between workpieces for inspection more quickly, thereby reducing workpiece processing time. The automated design improves equipment efficiency.

[0019] 3. By installing a mobile rack, a tilting rack, and a blanking rack, the tee joints can be automatically unloaded from the tee joint holder, significantly reducing manual intervention and automating the unloading process. This not only improves production efficiency but also reduces the possibility of human error. Furthermore, the buffer plate on the blanking rack effectively slows the tee joint's drop, preventing collisions or damage during the unloading process. This ensures the integrity and quality of the tee joint, improves the qualified rate of the finished product, and reduces the rate of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an X-ray detection device based on automated CR technology according to the present invention;

[0021] Figure 2 This is a schematic diagram of the other side of the overall structure of an X-ray detection device based on automated CR technology of the present invention;

[0022] Figure 3 This is a schematic diagram of the base structure of an X-ray detection device based on automated CR technology of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of a rotating base of an X-ray detection device based on automated CR technology of the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of a mobile frame structure of an X-ray detection device based on automated CR technology according to the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of a flip frame of an X-ray detection device based on automated CR technology of the present invention;

[0026] Figure 7 This is a schematic diagram of the expanded structure of a three-way connector seat of an X-ray detection device based on automated CR technology of the present invention;

[0027] Figure 8 This is a partially enlarged cross-sectional schematic diagram of a fixed column and a detection cover structure of an X-ray detection device based on automated CR technology of the present invention;

[0028] Figure 9 This is a schematic cross-sectional view of the blanking rack structure of an X-ray detection device based on automated CR technology of the present invention.

[0029] The following are marked in the figure: 1. Base; 2. Rotating base; 3. Moving frame; 4. Turning frame; 5. Three-way joint seat; 6. Fixed column; 7. Inspection cover; 8. Unloading frame; 101. Fixed frame; 102. Ring frame; 103. Guide groove; 201. Universal joint A; 202. Drive wheel; 301. Guide rod; 302. Universal joint B; 303. Worm; 304. Drive rod; 305. Drive groove; 306 , fixed head; 401, worm gear; 402, snap sleeve; 501, snap joint; 502, snap block; 503, spring A; 504, tee joint; 601, threaded rod; 602, motor; 701, slider; 702, gear rod; 703, transmission gear; 704, tension spring; 705, high-voltage X-ray tube; 801, buffer plate; 802, connecting rod; 803, U-shaped frame; 804, spring B. DETAILED DESCRIPTION

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0031] like Figures 1-9 The shown X-ray detection device based on automated CR technology includes a base 1, a rotating base 2 is provided above the base 1, a plurality of mobile frames 3 are slidably provided on the rotating base 2, a flip frame 4 is rotatably connected to the mobile frame 3, a three-way joint seat 5 is installed on the flip frame 4, a fixed column 6 is fixedly connected to one side of the base 1, a detection cover 7 is slidably provided on the fixed column 6, and a discharge rack 8 is fixedly connected to one side of the base 1.

[0032] like Figure 3 As shown, a fixing frame 101 is fixedly connected to the base 1, and an annular frame 102 is fixedly connected to the fixing frame 101. A guide groove 103 is provided on the top surface of the annular frame 102. The guide groove 103 is located on one side of the blanking frame 8 and is a protruding structure.

[0033] like Figure 4As shown, a universal joint A201 is fixedly connected to the bottom end of the rotating base 2, which is rotatably connected to the fixed frame 101. The other end of the universal joint A201 is fixedly connected to the transmission wheel 202. When the detection cover 7 moves upward beyond the three-way joint 504, the transmission teeth 703 on the gear rod 702, under the action of the tension spring 704, will drive the transmission wheel 202 to rotate, so that the transmission wheel 202 drives the rotating base 2 connected to the universal joint A201 to rotate.

[0034] like Figure 5 As shown, a guide rod 301 is fixedly connected to the bottom end of the mobile frame 3, and the other end of the guide rod 301 is slidably matched with the inner wall of the guide groove 103. A universal joint B302 is rotatably connected to the mobile frame 3, and a worm 303 is fixedly connected to one end of the universal joint B302, and a transmission rod 304 is fixedly connected to the other end of the universal joint B302. A transmission groove 305 is provided on the outer wall of the transmission rod 304, and the transmission groove 305 consists of two parts, a spiral and a straight line. A fixed head 306 is slidably matched with the inner wall of the transmission groove 305, and the fixed head 306 is fixedly connected to the rotating seat 2. The guide rod 301 at the bottom end of the movable frame 3 will move to the raised position of the guide groove 103, thereby driving the movable frame 3 to move. Then, when the spiral position of the transmission groove 305 on the transmission rod 304 contacts the fixed head 306, the transmission rod 304 will be driven to rotate, so that the transmission rod 304 drives the worm 303 connected to the universal joint B302 to rotate, so that the worm 303 can drive the flip frame 4 connected to the worm gear 401 to flip.

[0035] like Figure 6 As shown, a worm gear 401 is fixedly connected to one end of the flip frame 4, and the worm gear 401 is meshed with the worm 303 for transmission. A plurality of snap-fit sleeves 402 are fixedly connected to the flip frame 4, and a CR image board is fixedly connected to the flip frame 4.

[0036] like Figure 7 As shown, a clamping joint 501 is fixedly connected to both sides of one end of the three-way joint seat 5. A clamping block 502 is slidably provided on the inner wall of one side of the clamping joint 501. A spring A503 is fixedly connected to the inner end of the clamping block 502. The other end of the spring A503 is fixedly connected to the inner wall of the clamping joint 501. The outer walls of the clamping joint 501 and the clamping block 502 are movably connected to the clamping sleeve 402. The three-way joint seat 5 has a limiting groove, and a matching three-way joint 504 is placed in the limiting groove. The outer end of the clamping joint 501 has an inclined surface to facilitate and quickly insert into the clamping sleeve 402. The clamping joint 501 at the bottom of the three-way joint seat 5 is inserted into the clamping sleeve 402 at the appropriate position. At this time, under the action of the spring A503, the clamping block 502 is inserted into the clamping sleeve 402, so that the three-way joint seat 5 is installed and fixed on the flip frame 4.

[0037] By providing a retaining groove on the tee connector base 5 that is compatible with the tee connector 504, the retaining groove precisely matches the shape of the tee connector 504, ensuring more stable fixation and positioning of the connector during the inspection process. This effectively prevents displacement of the tee connector 504 during X-ray inspection, ensuring accurate weld position and avoiding inspection errors caused by unstable positioning. The detachable design of the tee connector base 5 allows for replacement of tee connectors 504 of different sizes and shapes, increasing the adaptability of the equipment.

[0038] like Figure 8 As shown, a threaded rod 601 is rotatably connected to the inner wall of the fixed column 6, and a motor 602 is fixedly connected to the bottom end of the threaded rod 601. The motor 602 is fixedly connected to the fixed column 6. The three-way connector 504 is placed on the three-way connector seat 5, and then the motor 602 drives the connected threaded rod 601 to rotate, so that the threaded rod 601 drives the detection cover 7 connected to the slider 701 to move downward.

[0039] like Figure 8 As shown, a slider 701 is fixedly attached to one end of the detection cover 7. One end of the slider 701 is threadedly connected to the threaded rod 601. A gear rod 702 is fixedly attached to the bottom end of the slider 701. A plurality of transmission teeth 703 are rotatably connected to the inner wall of the bottom end of the gear rod 702. A tension spring 704 is fixedly attached to one end of the transmission teeth 703. The other end of the tension spring 704 is fixedly connected to the inner wall of the gear rod 702. The transmission teeth 703 mesh with the transmission wheel 202 for transmission. A lead layer is fixedly attached to the inner wall of the detection cover 7. A high-voltage X-ray tube 705 is fixedly attached to the inner wall of the upper end of the detection cover 7. The high-voltage X-ray tube 705 is a Varian 8850 model and is primarily used in nondestructive testing, welding quality inspection, material analysis, and other fields. It generally has high stability and durability. The lead layer on the inner wall of the detection cover 7 is a high-density material with excellent radiation shielding capabilities, which can isolate the radiation source from the operating area. The high-voltage X-ray tube 705 generates X-rays, and the CR imaging board receives the X-ray image after passing through the three-way joint 504. The system analyzes the image and analyzes and detects the weld of the three-way joint 504.

[0040] like Figure 9As shown, a buffer plate 801 is rotatably connected to the blanking frame 8. A rubber pad is fixedly connected to the top surface of the buffer plate 801. The bottom surface of the buffer plate 801 is symmetrically structured and rotatably connected to two connecting rods 802. A U-shaped frame 803 is slidably provided on the blanking frame 8. The U-shaped frame 803 is rotatably connected to the connecting rod 802. A plurality of springs B804 are fixedly connected to one side of the U-shaped frame 803. The other end of the spring B804 is fixedly connected to the blanking frame 8. The buffer plate 801 rotates to buffer the discharge of the tee joint 504. After the tee joint 504 falls from the buffer plate 801, the spring B804 causes the U-shaped frame 803 to drive the buffer plate 801 connected to the connecting rod 802 to return to its original position.

[0041] Working principle: When it is necessary to perform X-ray inspection on the weld of the tee joint 504, first install the appropriate tee joint seat 5 on the flip frame 4 according to the size of the tee joint 504, and insert the clamping joint 501 at the bottom of the tee joint seat 5 into the clamping sleeve 402 at the appropriate position. At this time, under the action of spring A503, the clamping block 502 is inserted into the clamping sleeve 402, so that the tee joint seat 5 is installed and fixed on the flip frame 4;

[0042] Then, the three-way joint 504 is placed on the three-way joint seat 5. The motor 602 is then used to drive the connected threaded rod 601 to rotate, so that the threaded rod 601 drives the detection cover 7 connected to the slider 701 to move downward, so that the bottom end of the detection cover 7 is closely attached to the rotating seat 2. Then, the high-voltage X-ray tube 705 is used to generate X-rays. The CR imaging board receives the X-ray image after passing through the three-way joint 504. The system analyzes the image and analyzes and detects the weld of the three-way joint 504.

[0043] After the inspection is completed, when the inspection cover 7 moves up and exceeds the three-way joint 504, the transmission tooth 703 on the gear rod 702 drives the transmission wheel 202 to rotate under the action of the tension spring 704, so that the transmission wheel 202 drives the rotating base 2 connected to the universal joint A201 to rotate, so that the inspected three-way joint 504 rotates to one side of the unloading rack 8;

[0044] At this time, the guide rod 301 at the bottom end of the moving frame 3 will move to the raised position of the guide groove 103, thereby driving the moving frame 3 to move, and then when the spiral position of the transmission groove 305 on the transmission rod 304 contacts the fixed head 306, it will drive the transmission rod 304 to rotate, so that the transmission rod 304 drives the worm 303 connected to the universal joint B302 to rotate, so that the worm 303 can drive the flip frame 4 connected to the worm gear 401 to flip, so that the three-way joint 504 on the three-way joint seat 5 can fall onto the buffer plate 801, and then the buffer plate 801 will rotate to buffer the three-way joint 504. After the three-way joint 504 falls from the buffer plate 801, under the action of the spring B804, the U-shaped frame 803 will drive the buffer plate 801 connected to the connecting rod 802 to reset.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An X-ray detection device based on automated CR technology, comprising a base (1), characterized in that: A rotating seat (2) is provided above the base (1), a plurality of movable frames (3) are provided on the rotating seat (2) in a sliding manner, a flip frame (4) is provided on the movable frame (3) in a rotatable connection, a three-way joint seat (5) is installed on the flip frame (4), a fixed column (6) is fixedly provided on one side of the base (1), a detection cover (7) is provided on the fixed column (6) in a sliding manner, and a discharge frame (8) is fixedly provided on one side of the base (1).

2. The X-ray detection device based on automated CR technology according to claim 1, characterized in that: A fixing frame (101) is fixedly connected to the base (1), an annular frame (102) is fixedly connected to the fixing frame (101), a guide groove (103) is provided on the top surface of the annular frame (102), and the guide groove (103) is located on one side of the blanking frame (8) and is arranged in a protruding structure.

3. The X-ray detection device based on automated CR technology according to claim 2, characterized in that: A universal joint A (201) is fixedly connected to the bottom end of the rotating seat (2), and the universal joint A (201) is rotatably connected to the fixed frame (101). A transmission wheel (202) is fixedly connected to the other end of the universal joint A (201).

4. The X-ray detection device based on automated CR technology according to claim 3, characterized in that: The bottom end of the movable frame (3) is fixedly connected to a guide rod (301), the other end of the guide rod (301) is slidably matched with the inner wall of the guide groove (103), and the movable frame (3) is rotatably connected to a universal joint B (302), one end of the universal joint B (302) is fixedly connected to a worm (303), and the other end of the universal joint B (302) is fixedly connected to a transmission rod (304), the outer wall of the transmission rod (304) is provided with a transmission groove (305), the transmission groove (305) is composed of a spiral part and a straight part, the inner wall of the transmission groove (305) is slidably matched with a fixed head (306), and the fixed head (306) is fixedly connected to the rotating seat (2).

5. The X-ray detection device based on automated CR technology according to claim 4, characterized in that: A worm gear (401) is fixedly connected to one end of the flip frame (4), and the worm gear (401) is meshed with the worm (303) for transmission. A plurality of snap-fit sleeves (402) are fixedly connected to the flip frame (4), and a CR image board is fixedly connected to the flip frame (4).

6. The X-ray detection device based on automated CR technology according to claim 5, characterized in that: Both sides of one end of the three-way joint seat (5) are fixedly connected with a clamping joint (501), an inner wall of one side of the clamping joint (501) is slidably matched with a clamping block (502), an inner end of the clamping block (502) is fixedly connected with a spring A (503), the other end of the spring A (503) is fixedly connected with the inner wall of the clamping joint (501), the outer wall of the clamping joint (501) and the clamping block (502) are movably plugged into the clamping sleeve (402), and the three-way joint seat (5) is provided with a limiting groove, and a matching three-way joint (504) is placed in the limiting groove.

7. The X-ray detection device based on automated CR technology according to claim 6, characterized in that: A threaded rod (601) is rotatably connected to the inner wall of the fixed column (6), a motor (602) is fixedly connected to the bottom end of the threaded rod (601), and the motor (602) is fixedly connected to the fixed column (6).

8. The X-ray detection device based on automated CR technology according to claim 7, characterized in that: One end of the detection cover (7) is fixedly connected to a slider (701), one end of the slider (701) is threadedly connected to the threaded rod (601), the bottom end of the slider (701) is fixedly connected to a gear rod (702), the inner wall of the bottom end of the gear rod (702) is rotatably connected to a plurality of transmission teeth (703), one end of the transmission teeth (703) is fixedly connected to a tension spring (704), the other end of the tension spring (704) is fixedly connected to the inner wall of the gear rod (702), the transmission teeth (703) are meshed with the transmission wheel (202) for transmission, the inner wall of the detection cover (7) is fixedly connected to a lead layer, and the inner wall of the upper end of the detection cover (7) is fixedly connected to a high-voltage X-ray tube (705).

9. The X-ray detection device based on automated CR technology according to claim 1, characterized in that: A buffer plate (801) is rotatably connected to the blanking frame (8), a rubber pad is fixedly connected to the top surface of the buffer plate (801), and two connecting rods (802) are rotatably connected to the bottom surface of the buffer plate (801) in a symmetrical structure. A U-shaped frame (803) is slidably matched to the blanking frame (8), and the U-shaped frame (803) is rotatably connected to the connecting rod (802). A plurality of springs B (804) are fixedly connected to one side of the U-shaped frame (803), and the other end of the spring B (804) is fixedly connected to the blanking frame (8).

Citation Information

Patent Citations

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    CN118243708A

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  • Automatic feeding and discharging control system of AVI detection machine

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  • Electronic ceramic automatic detection equipment and use method thereof

    CN116182768A

  • Position overturning tool for welding iron tower steel member

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