A performance testing device and method for industrial valves

Abstract

This invention discloses a performance testing device and method for industrial valves, comprising a second testing plate, a first testing plate, a third testing plate, and a rotating base. A first support frame is fixedly installed above the second testing plate, and a first cylinder is fixedly installed above the first support frame. A first slide rail is provided above the first support frame, and a first slider is slidably connected above the first slide rail. A second slider is slidably connected above the first slide rail. The cylinder rod end is connected to the first slider. A first motor is provided above the first slider, and a spring column is provided on the front side of the first slider. The spring column is slidably connected to the second slider. A rotating column is provided on the output shaft of the first motor, and the output shaft of the first motor is slidably connected to the second slider. This invention conveniently and efficiently realizes the testing function.

Description

Technical Field

[0001] This invention relates to the field of valve testing, and is entitled "A Performance Testing Device and Method for Industrial Valves". Background Technology

[0002] Valves are control components in pipeline fluid transport systems, used to change the cross-sectional area of ​​the passage and the direction of medium flow. They have functions such as guiding, stopping, throttling, checking, diverting, or overflowing and relieving pressure. Valves used for fluid control range from the simplest shut-off valves to various valves used in extremely complex automatic control systems. Their types and specifications are numerous, with nominal diameters ranging from extremely small instrument valves to industrial pipeline valves with diameters up to 10 meters. They can be used to control the flow of various types of fluids, including water, steam, oil, gas, slurry, various corrosive media, liquid metals, and radioactive fluids. Valve operating pressures can range from 0.0013 MPa to ultra-high pressures of 1000 MPa, and operating temperatures can range from ultra-low temperatures of -270℃ to high temperatures of 1430℃.

[0003] However, existing valve testing items are limited and mostly focus on the airtightness of valves. When it is necessary to test the locking mechanism, manual transportation is required, which wastes time. Furthermore, the airtightness test lacks the testing of the threads on both sides, resulting in many inaccurate test results. Therefore, comprehensive valve testing is very necessary.

[0004] Therefore, it is necessary to provide a performance testing device and method for industrial valves, which can achieve the testing function. Summary of the Invention

[0005] The purpose of this invention is to provide a performance testing device and method for industrial valves to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a performance testing device and method for industrial valves, comprising a second testing plate, a first testing plate, a third testing plate, and a rotating base. A first support frame is fixedly installed above the second testing plate, a first cylinder is fixedly installed above the first support frame, a first slide rail is provided above the first support frame, a first slider is slidably connected above the first slide rail, a second slider is slidably connected above the first slide rail, the cylinder rod end is connected to the first slider, a first motor is provided above the first slider, and a spring column is provided on the front side of the first slider. The first motor is slidably connected to the second slider. A rotating column is provided on the output shaft of the first motor, and the output shaft of the first motor is slidably connected to the second slider. A first rotating plate is fixedly installed on the front side of the rotating column. A first limiting plate is provided on the front side of the first rotating plate. A buffer column is provided on the inner side of the first limiting plate. A second limiting plate is provided on the inner side of the buffer column. A gear is connected to the top bearing of the second limiting plate. A fixing ring meshes with the outer gear of the gear. The fixing ring is slidably connected to the second detection plate. A second rotating plate is connected to the inner bearing of the gear. An extension column is fixedly installed on the rear side of the second rotating plate. A threaded plug is provided on the rear side of the extension column.

[0007] In one embodiment, a placement chamber is fixedly installed above the second detection plate, and a second cylinder is fixedly installed above the second detection plate. A retainer is connected to the bearing at the rod end of the second cylinder, and an adapter plate is connected to the outer bearing of the retainer. The adapter plate and the second cylinder are mutually connected by bearings.

[0008] In one embodiment, a second slide rail is fixedly installed above the first detection plate, and a placement groove is slidably connected above the second slide rail. A third cylinder is fixedly installed above the first detection plate, and a booster pump is fixedly installed at the rod end of the third cylinder. A water reservoir is fixedly installed above the booster pump. A fourth cylinder is fixedly installed above the first detection plate, and a sealing plate is fixedly installed at the rod end of the fourth cylinder. A detector is disposed inside the sealing plate.

[0009] In one embodiment, a second support frame is provided above the first detection plate, and a fifth cylinder is fixedly installed above the second support frame, with a protective cover fixedly installed on the rod end of the fifth cylinder.

[0010] In one embodiment, a sloping groove is fixedly installed above the third detection plate, and fixing clamps are provided on both sides of the sloping groove. A third support frame is fixedly installed above the third detection plate, and a track is slidably connected above the third support frame. A rotator is slidably connected to the front side of the track, and a locking head is provided at the rotating head end of the rotator.

[0011] In one embodiment, a first robotic arm is connected to the upper bearing of the rotating base, a second robotic arm is connected to the upper bearing of the first robotic arm, a suction head is connected to the front bearing of the second robotic arm, a fourth support frame is fixedly installed on the right side of the rotating base, a third slide rail is provided above the fourth support frame, a conveying plate is slidably connected above the third slide rail, a sixth cylinder is fixedly installed above the conveying plate, a concave plate is provided above the sixth cylinder, a first connecting plate is connected to the outer bearing of the concave plate, a second connecting plate is connected to the outer bearing of the concave plate, a push column is provided at the end of the cylinder's rod, a transfer plate is fixedly installed above the push column, a third connecting plate is connected to the left bearing of the transfer plate, a fourth connecting plate is connected to the right bearing of the transfer plate, the third connecting plate and the first connecting plate are mutually connected by bearings, the fourth connecting plate and the second connecting plate are mutually connected by bearings, a first gripper is fixedly installed at the top of the first connecting plate, and a second gripper is fixedly installed at the top of the second connecting plate.

[0012] In one embodiment, a fifth support frame is fixedly installed on the left side of the rotating base, a first conveyor belt is arranged above the fifth support frame, and a second conveyor belt is arranged above the first conveyor belt.

[0013] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention, by setting a buffer column and utilizing the cooperation of the first and second limiting plates, addresses the issue of increased resistance when the internal threads of the valve deviate, crack, or fail to meet manufacturing requirements, causing thread irregularities. This results in the buffer column being subjected to greater pressure. When the buffer column reaches its limit, an internal alarm system is triggered, indicating a problem with the threaded plug during insertion. This leads to more precise detection, reduces hidden valve problems, extends valve lifespan, and increases its reusability during later inspection and maintenance. The sealing plate and pressurization... The pump, also plate-shaped, can accommodate various diameters compared to the previous screw-in type, eliminating the need to change the screw-in head. Pressure from both sides ensures the sealing plate fits snugly against the booster pump and valve. The booster pump then extracts the test liquid from the reservoir and pours it into the valve. The sealing plate opens the detector. If the detector's pressure value matches the booster pump's inlet pressure, the airtightness is good. If the value continues to decrease, it indicates an abnormal airtightness. At this point, the booster pump retracts the test liquid and alerts the worker. Through the coordinated operation of the first and second robotic arms, the liquid is transported to various testing areas after being suctioned by the air suction head. This method is convenient, fast, and accurately identifies areas, improving efficiency and reducing manpower. Attached Figure Description

[0014] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0015] In the attached diagram:

[0016] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0017] Figure 2 This is a side view of the gripper structure of the present invention;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the first detection plate of the present invention;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the second detection plate of the present invention;

[0020] Figure 5 This is a side view of the first motor of the present invention;

[0021] Figure 6 This is a three-dimensional structural schematic diagram of the fixing ring of the present invention;

[0022] Figure 7 This is an enlarged schematic diagram of the internal structure of the fixing ring of the present invention;

[0023] Figure 8 This is a three-dimensional structural schematic diagram of the third detection plate of the present invention;

[0024] In the diagram: 1. Rotating base; 2. First robotic arm; 3. Second robotic arm; 4. Air suction head; 5. Fourth support frame; 6. Third slide rail; 7. Conveying plate; 8. Sixth cylinder; 9. Push column; 10. Concave plate; 11. First connecting plate; 12. Third connecting plate; 13. Transfer plate; 14. First gripper; 15. Fourth connecting plate; 16. Second connecting plate; 17. Second gripper; 18. First detection plate; 19. Second slide rail; 20. Placement slot; 21. Second support frame; 22. Fifth cylinder; 23. Protective cover; 24. Booster pump; 25. Fourth cylinder; 26. Sealing plate; 27. Second detection plate; 28. First support frame; 29. ​​First cylinder; 30. First slide rail; 31. First slider; 32. First motor; 33. Spring column; 34. Second slider; 35. Rotating column; 36. First rotating plate; 37. First limiting plate; 38. Buffer column; 39. Second limiting plate; 40. Gear; 41. Second rotating plate; 42. Extension column; 43. Threaded plug; 44. Second cylinder; 45. Adapter plate; 46. Fixer; 47. Third detection plate; 48. Third support frame; 49. Track; 50. Rotator; 51. Positioning head; 52. Fixing clamp; 53. Inclined groove; 54. Second conveyor belt; 55. First conveyor belt; 56. Fifth support frame; 57. Fixing ring; 58. Placement chamber; 59. Water reservoir; 60. Detector; 61. Third cylinder. Detailed Implementation

[0025] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0026] Please see Figure 1-8This invention provides a technical solution: a performance testing device and method for industrial valves, comprising a second testing plate 27, a first testing plate 18, a third testing plate 47, and a rotating base 1. A first support frame 28 is fixedly installed above the second testing plate 27. A first cylinder 29 is fixedly installed above the first support frame 28. A first slide rail 30 is provided above the first support frame 28. A first slider 31 is slidably connected above the first slide rail 30. A second slider 34 is slidably connected above the first slide rail 30. The piston rod end of the first cylinder 29 is connected to the first slider 31. A first motor 32 is provided above the first slider 31. A spring post 33 is provided on the front side of the first slider 31. The interior of the spring post 33 is slidably connected to the second slider 34. Next, the output shaft of the first motor 32 is provided with a rotating column 35. The output shaft of the first motor 32 is slidably connected to the second slider 34. A first rotating plate 36 is fixedly installed on the front side of the rotating column 35. A first limiting plate 37 is provided on the front side of the first rotating plate 36. A buffer column 38 is provided on the inner side of the first limiting plate 37. A second limiting plate 39 is provided on the inner side of the buffer column 38. A gear 40 is connected to the top bearing of the second limiting plate 39. A fixing ring 57 is meshed with the outer gear of the gear 40. The fixing ring 57 is slidably connected to the second detection plate 27. A second rotating plate 41 is connected to the inner bearing of the gear 40. An extension column 42 is fixedly installed on the rear side of the second rotating plate 41. A threaded plug 43 is provided on the rear side of the extension column 42 to detect whether the threads on both sides of the valve conform. The regulations stipulate that issues such as smooth valve installation, post-installation wear, and leakage also affect valve lifespan and maintenance procedures. Once the valve is fixed, the first cylinder 29 pushes the air rod forward, causing the first slider 31 to reach the designated position, allowing the threaded plug 43 to be inserted into the valve mounting hole. Subsequently, the second slider 34 locks with the first slide rail 30, and the first motor 32 starts. At this time, the motor output shaft drives the first rotating plate 36 to rotate via the rotating column 35. The rotation of the first rotating plate 36 also drives the first limiting plate 37 to rotate. The first limiting plate 37 drives the side-mounted buffer column 38, which in turn drives the second limiting plate 39 to rotate. The gear 40, connected to the bearing of the second limiting plate 39, also rotates and meshes with it. The second rotating plate 41, connected to the rear side of the gear 40 via a bearing, rotates independently within the fixed ring 57. Unaffected by the independent rotation of the gear 40, it rotates along with the rotating column 35. Subsequently, the second rotating plate 41 drives the threaded plug 43 to rotate via the extension column 42. Since the valve is fixed, the threaded plug 43 engages with the internal threads of the valve, rotating and displacing inwards. This causes the first slider 31 to advance. When the threaded plug 43 is screwed into the valve, friction generates resistance. This resistance causes rotational resistance in the second limiting plate 39, preventing the first limiting plate 37 connected to it from rotating at the speed of the first motor 32. At this point, the buffer column 38 will be compressed, but the resistance from normal wear is within the buffer column 38's tolerance range.When the internal threads of the valve become irregular due to misalignment or cracks, or when the threads do not meet manufacturing requirements, the resistance will increase. At this time, the buffer column 38 will be subjected to greater pressure. When the buffer column 38 reaches its limit of pressure, the internal alarm system will be triggered, indicating that the threaded plug 43 encountered a problem during screwing in. At this point, the first motor 32 stops rotating, and an alarm is triggered to alert the operator. When the threaded plug 43 needs to be screwed out, the spring column 33, due to the pressure from the first slider 31 during screwing in, will generate a reverse thrust during screwing out, assisting the threaded plug 43 in exiting. This results in a more precise overall detection, reducing hidden valve problems, extending valve lifespan, and increasing its reusability during later inspection and maintenance.

[0027] A placement chamber 58 is fixedly installed above the second detection plate 27. A second cylinder 44 is fixedly installed above the second detection plate 27. A retainer 46 is connected to the bearing end of the rod of the second cylinder 44. A transition plate 45 is connected to the outer bearing of the retainer 46. The transition plate 45 and the second cylinder 44 are connected to each other by bearings. After the valve is placed on the placement chamber 58, the second cylinder 44 pushes the rod upward. At this time, the retainer 46 is limited by the position of the transition plate 45. The rod will rotate counterclockwise around the transition plate 45. The retainer 46 completes the fixation of the valve and opens the detection.

[0028] A second slide rail 19 is fixedly installed above the first detection plate 18. A placement groove 20 is slidably connected above the second slide rail 19. A third cylinder 61 is fixedly installed above the first detection plate 18. A booster pump 24 is fixedly installed at the end of the piston rod of the third cylinder 61. A water reservoir 59 is fixedly installed above the booster pump 24. A fourth cylinder 25 is fixedly installed above the first detection plate 18. A sealing plate 26 is fixedly installed at the end of the piston rod of the fourth cylinder 25. A detector 60 is installed inside the sealing plate 26. The airtightness test of the valve is the most important test. After the valve is placed in the placement groove 20, the third cylinder 61 and the fourth cylinder... Simultaneously starting up, the internal air spring pushes the sealing plate 26 and the booster pump 24. Since the sealing plate 26 and the booster pump 24 are both plate-shaped, compared with the previous screw-in type, they can be adapted to various diameters without changing the screw-in head. The pressure on both sides makes the sealing plate 26, the booster pump 24 and the valve fit together. Then the booster pump 24 draws out the test liquid from the water tank 59 and pours it into the valve. The sealing plate 26 opens the detector 60. If the detection pressure value of the detector 60 is the same as the injection pressure of the booster pump 24, it means that the airtightness is good. If the value continues to drop, it means that the airtightness is abnormal. At this time, the booster pump 24 draws back the test liquid and alerts the worker.

[0029] A second support frame 21 is provided above the first detection plate 18. A fifth cylinder 22 is fixedly installed above the second support frame 21. A protective cover 23 is fixedly installed at the end of the cylinder rod of the fifth cylinder 22. When the first detection plate 18 is testing the air tightness, the fifth cylinder 22 pushes the cylinder rod to drive the protective cover 23 down, thereby covering the placement slot 20 and preventing the valve from bursting during the air tightness test if it is damaged.

[0030] A sloping groove 53 is fixedly installed above the third detection plate 47. Fixing clamps 52 are provided on both sides of the sloping groove 53. A third support frame 48 is fixedly installed above the third detection plate 47. A rail 49 is slidably connected above the third support frame 48. A rotator 50 is slidably connected to the front side of the rail 49. A locking head 51 is provided at the rotating head end of the rotator 50. The valve is placed on the sloping groove 53. Then the fixing clamps 52 clamp the two sides of the valve. The fixing clamps 52 can rotate to drive the valve to adjust the angle so that the valve switch is vertically upward. Then the rail 49 and the rotator 50 cooperate to adjust the position of the locking head 51. Then the rotator 50 pushes the locking head 51 downward to align and fit with the valve switch through the internal telescopic rod. Then the rotation is started. The internal computer of the rotator 50 determines whether the valve switch meets the rotation number requirements.

[0031] A first robotic arm 2 is connected to the upper bearing of the rotating base 1. A second robotic arm 3 is connected to the upper bearing of the first robotic arm 2. A suction head 4 is connected to the front bearing of the second robotic arm 3. A fourth support frame 5 is fixedly installed on the right side of the rotating base 1. A third slide rail 6 is provided above the fourth support frame 5. A conveying plate 7 is slidably connected above the third slide rail 6. A sixth cylinder 8 is fixedly installed above the conveying plate 7. A concave plate 10 is provided above the sixth cylinder 8. A first connecting plate 11 is connected to the outer bearing of the concave plate 10. A second connecting plate 16 is connected to the outer bearing of the concave plate 10. A push column 9 is provided at the end of the air rod of the sixth cylinder 8. A transfer plate 13 is fixedly installed above the push column 9. A third connecting plate 12 is connected to the left bearing of the transfer plate 13. A fourth connecting plate 15 is connected to the right bearing of the transfer plate 13. The third connecting plate 12 and the first connecting plate 11 are connected to each other by bearings. The connecting plate 15 and the second connecting plate 16 are connected by bearings. The top of the first connecting plate 11 is fixedly installed with the first gripper 14, and the top of the second connecting plate 16 is fixedly installed with the second gripper 17. The worker places the valve between the first gripper 14 and the second gripper 17, and then starts the sixth cylinder 8. The sixth cylinder 8 pushes the internal air rod to drive the push column 9 down. At this time, the third connecting plate 12 cooperates with the first connecting plate 11 and the fourth connecting plate 15 cooperates with the second connecting plate 16. During the pull-down process, the first gripper 14 and the second gripper 17 are simultaneously driven to move inward, thereby clamping the valve. Then the transport plate 7 slides forward on the third slide rail 6. The robotic arm rotates through the bottom rotating base 1. Through the cooperation of the first robotic arm 2 and the second robotic arm 3, the valve is transported to each detection area after being adsorbed by the air suction head 4. This is convenient, fast, and can accurately distinguish areas, improve efficiency, and reduce manpower.

[0032] A fifth support frame 56 is fixedly installed on the left side of the rotating base 1. A first conveyor belt 55 is set above the fifth support frame 56, and a second conveyor belt 54 is set above the first conveyor belt 55. If the overall inspection is completed, the air suction head 4 will carry the product to the next inspection area until the inspection is completed and qualified. Finally, the product will be placed on the second conveyor belt 54 above. Conversely, if the inspection is unqualified, the product will be immediately carried by the air suction head 4 and placed on the first conveyor belt 55 below, thus achieving the effect of differentiation.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection, the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the meaning of the above terms in this application according to the specific circumstances.

[0034] The above provides a detailed description of a performance testing device and method for industrial valves provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A performance testing device for industrial valves, comprising a second testing plate (27), a first testing plate (18), a third testing plate (47), and a rotating base (1), characterized in that: A first support frame (28) is fixedly installed above the second detection plate (27). A first cylinder (29) is fixedly installed above the first support frame (28). A first slide rail (30) is provided above the first support frame (28). A first slider (31) is slidably connected above the first slide rail (30). A second slider (34) is slidably connected above the first slide rail (30). The air rod end of the first cylinder (29) is connected to the first slider (31). A first motor (32) is provided above the first slider (31). A spring column (33) is provided on the front side of the first slider (31). The inside of the spring column (33) is slidably connected to the second slider (34). A rotating column (35) is provided on the output shaft of the first motor (32). The output shaft of the first motor (32) is slidably connected to the second slider (34). A first rotating plate (36) is fixedly installed on the front side of the rotating column (35). A first limiting plate (37) is provided, and a buffer post (38) is provided on the inner side of the first limiting plate (37). A second limiting plate (39) is provided on the inner side of the buffer post (38). A gear (40) is connected to the top bearing of the second limiting plate (39). A fixing ring (57) is meshed with the outer gear of the gear (40). The fixing ring (57) is slidably connected to the second detection plate (27). A second rotating plate (41) is connected to the inner bearing of the gear (40). An extension column (42) is fixedly installed on the rear side of the second rotating plate (41). A threaded plug (43) is provided on the rear side of the extension column (42). When the threaded plug (43) is screwed into the valve, it will generate a certain resistance due to friction. At this time, the resistance will cause the second limiting plate to generate rotational resistance, so that the first limiting plate connected to it cannot rotate at the speed of the first motor. At this time, the buffer column will be squeezed. When the buffer column is squeezed to the limit, the internal alarm system will be triggered, indicating that the threaded plug (43) has encountered a problem when it is screwed in.

2. The performance testing device for industrial valves according to claim 1, characterized in that: A housing (58) is fixedly installed above the second detection plate (27). A second cylinder (44) is fixedly installed above the second detection plate (27). A retainer (46) is connected to the bearing at the rod end of the second cylinder (44). A transition plate (45) is connected to the outer bearing of the retainer (46). The transition plate (45) and the second cylinder (44) are connected to each other by bearings.

3. The performance testing device for industrial valves according to claim 2, characterized in that: A second slide rail (19) is fixedly installed above the first detection plate (18), and a placement groove (20) is slidably connected above the second slide rail (19). A third cylinder (61) is fixedly installed above the first detection plate (18), and a booster pump (24) is fixedly installed at the rod end of the third cylinder (61). A water reservoir (59) is fixedly installed above the booster pump (24). A fourth cylinder (25) is fixedly installed above the first detection plate (18), and a sealing plate (26) is fixedly installed at the rod end of the fourth cylinder (25). A detector (60) is installed inside the sealing plate (26).

4. The performance testing device for industrial valves according to claim 3, characterized in that: A second support frame (21) is provided above the first detection plate (18), and a fifth cylinder (22) is fixedly installed above the second support frame (21). A protective cover (23) is fixedly installed on the rod end of the fifth cylinder (22).

5. The performance testing device for industrial valves according to claim 4, characterized in that: A sloping groove (53) is fixedly installed on the top of the third detection plate (47), and fixing clips (52) are provided on both sides of the sloping groove (53). A third support frame (48) is fixedly installed on the top of the third detection plate (47), and a track (49) is slidably connected on the top of the third support frame (48). A rotator (50) is slidably connected on the front side of the track (49), and a locking head (51) is provided at the rotating head end of the rotator (50).

6. The performance testing device for industrial valves according to claim 5, characterized in that: The rotating base (1) is connected to a first robotic arm (2) via an upper bearing. The first robotic arm (2) is connected to a second robotic arm (3) via an upper bearing. The front bearing of the second robotic arm (3) is connected to a suction head (4). A fourth support frame (5) is fixedly installed on the right side of the rotating base (1). A third slide rail (6) is provided above the fourth support frame (5). A conveying plate (7) is slidably connected above the third slide rail (6). A sixth cylinder (8) is fixedly installed above the conveying plate (7). A concave plate (10) is provided above the sixth cylinder (8). A first connecting plate (11) is connected to the outer bearing of the concave plate (10). The outer bearing of the sixth cylinder (8) is connected to a second connecting plate (16). The rod end of the sixth cylinder (8) is provided with a push column (9). A transfer plate (13) is fixedly installed above the push column (9). The left bearing of the transfer plate (13) is connected to a third connecting plate (12). The right bearing of the transfer plate (13) is connected to a fourth connecting plate (15). The third connecting plate (12) is connected to the first connecting plate (11) by bearings. The fourth connecting plate (15) is connected to the second connecting plate (16) by bearings. The top end of the first connecting plate (11) is fixedly installed with a first gripper (14). The top end of the second connecting plate (16) is fixedly installed with a second gripper (17).

7. The performance testing device for industrial valves according to claim 6, characterized in that: A fifth support frame (56) is fixedly installed on the left side of the rotating base (1), a first conveyor belt (55) is provided above the fifth support frame (56), and a second conveyor belt (54) is provided above the first conveyor belt (55).

8. The testing method for a performance testing device for industrial valves according to claim 1, comprising the following steps:

01. The worker controls the sixth cylinder (8) to drive the first gripper (14) and the second gripper (17) to clamp the valve, and then it is transported to the testing area via the third slide rail (6); 02. The first robotic arm (2) and the second robotic arm (3) work together to send the valve to three detection points and select the final placement position of the valve based on the detection results; 03. The first test is to check whether the valve is airtight. The sealing plate (26) and the booster pump (24) are simultaneously attached to the valve inlet and outlet. Then the booster pump (24) is turned on to pressurize the inside of the valve. The airtightness is judged by the detector 60. If it is qualified, it is sent to the next test point; if it is unqualified, it is sent to the first conveyor belt (55).

04. The second test is to check whether the valve thread is qualified. The distance between the first limiting plate (37) and the second limiting plate (39) when the thread plug (43) is screwed in is used to determine whether it is qualified. If it is qualified, it is sent to the next test point; if it is unqualified, it is sent to the first conveyor belt (55).

05. The third test is to check whether the number of rotations of the valve switch is qualified. The valve angle is adjusted to make the switch vertical. Then the track (49) and the rotator (50) cooperate to insert the locking head (51) into the valve for rotation test. If qualified, it is sent to the second conveyor belt (54), and if unqualified, it is sent to the first conveyor belt (55).

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