Detection equipment for valve machining and detection method thereof

Abstract

The invention relates to the technical field of valve machining detection, and discloses detection equipment for valve machining and a detection method thereof.The detection equipment comprises a top plate, a controller, a control switch and a second mounting plate are arranged on the top surface of the top plate, a driving device is arranged at the bottom of the second mounting plate, and a transposition device is arranged in the middle of the driving device; a height control device is arranged at the bottom of the second mounting plate, a second gear is arranged on the upper portion of the top plate, the height control device and the tooth end of the second gear can be meshed with a driving device, the bottom of the second gear is fixedly connected to one end of a limiting piece, and the other end of the limiting piece is fixedly connected to the upper surface of the bottom plate. The driving device can drive the second gear to rotate, and then the limiting piece at the bottom of the second gear drives the fixed disc to rotate, so that the problem that most of traditional valve detection equipment can only detect the pressure of one side of the gate, and consequently the test result is limited is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of valve processing detection, in particular to a valve processing detection device and a detection method thereof. Background Art

[0002] The gate is a key component in the valve and plays a vital role in the pipeline system. It is usually flat and made of metal, such as carbon steel, stainless steel, etc. Some are made of reinforced plastic and other materials to adapt to different working environments and media requirements. The main function of the gate is to cut off or conduct the fluid medium in the pipeline. When the valve is opened, the gate is lifted and the fluid can pass through the pipeline freely; when the valve is closed, the gate drops to fit tightly with the valve seat to prevent the flow of fluid and achieve the sealing and cutting function. Its sealing performance directly affects the use effect of the valve and the safety and stability of the pipeline system. In order to ensure that the gate can work stably, there are many considerations in design and manufacturing. Its shape design must meet the requirements of smooth movement in the valve body, and can be evenly stressed when closed, and cooperate well with the valve seat. At the same time, the surface treatment process of the gate is also critical. Through special treatments, such as chrome plating and corrosion-resistant coating, its wear resistance and corrosion resistance can be improved and its service life can be extended. In some special working conditions of high pressure, high temperature or conveying highly corrosive media, more stringent requirements are placed on the material selection, structural design and manufacturing accuracy of the gate to ensure the reliable operation of the entire pipeline system.

[0003] Most traditional valve testing equipment can only perform pressure testing on one side of the gate. In actual use, the medium may flow from two directions, and the front and back sides of the gate will be subject to pressure. Using traditional testing equipment for testing will lead to limitations in the test results. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a valve processing detection device and a detection method thereof, which solves the problem that most traditional valve detection devices can only perform pressure detection on one side of the gate plate. In actual use, the medium may flow from two directions, and the front and back sides of the gate plate will be subject to pressure. Using traditional detection equipment for detection will lead to limitations in the test results.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a valve processing detection equipment and a detection method thereof, comprising a top plate, the top surface of the top plate is provided with a controller, a control switch and a second mounting plate, the bottom of the second mounting plate is provided with a driving device, a shifting device is provided in the middle of the driving device, a height control device is provided at the bottom of the second mounting plate, a second gear is provided at the upper part of the top plate, the tooth ends of the height control device and the second gear can engage with the driving device, the bottom of the second gear is fixedly connected to one end of the limiting plate, the other end of the limiting plate is fixedly connected to the upper surface of the bottom plate, a fixed disk is provided in the middle of the limiting plate, a fourth through hole is opened at the edge of the fixing disk, the limiting plate passes through the inside of the fourth through hole, a gate is provided at the bottom of the fixing disk through a connecting device, a detection device is provided at the bottom of the top plate, and the controller is electrically connected to the control switch, the driving device and the detection device through wires.

[0006] Preferably, the driving device includes a servo motor, and a side of the servo motor away from the output end is fixedly connected to the bottom surface of the second mounting plate. The output end of the servo motor is fixedly provided with a transmission shaft, and the outer wall of the transmission shaft is provided with a first limit plate and a second limit plate, and teeth and a third gear are provided between the first limit plate and the second limit plate, and a tooth groove is opened in the middle of the third gear, and the teeth and the tooth groove fit together.

[0007] Preferably, the shifting device includes a first hydraulic push rod, a side of the first hydraulic push rod away from the output end is fixedly connected to the bottom of the servo motor, the output end of the first hydraulic push rod is fixedly connected to an expansion block, a side of the third gear close to the servo motor is provided with a rotating groove, and the expansion block is located inside the rotating groove.

[0008] Preferably, the height control device includes a threaded rod, the top of the threaded rod is rotatably connected to the bottom surface of the second mounting plate, the outer wall of the threaded rod is fixedly connected to the middle part of the first gear, the tooth end of the first gear can engage with the tooth end of the third gear, and the outer wall of the threaded rod is provided with an external thread at the lower position.

[0009] Preferably, the connecting device includes a connecting rod, the top of which is fixedly connected to the bottom of a fixed plate, a first mounting hole is provided at the bottom of the connecting rod, an internal thread is provided at the center of the upper portion of the connecting rod, a second mounting hole is provided at the center of the fixed plate, the threaded rod passes through the center of the second mounting hole, a mounting rod is provided at the top of the gate plate, an external thread is provided on the outer wall of the mounting rod, an internal thread is provided on the inner wall of the first mounting hole, and the mounting rod is threadedly connected to the inner wall of the first mounting hole.

[0010] Preferably, the detection device includes a detection cylinder, an inner wall of the detection cylinder is provided with a slide groove, a mounting block is arranged inside the detection cylinder, a sliding block is arranged on the outer wall of the mounting block, the outer wall of the sliding block fits with the inner wall of the slide groove, a pressure detection head is arranged at one end of the mounting block, the other end of the mounting block is fixedly connected to the output end of the second hydraulic push rod, a side of the second hydraulic push rod away from the output end is fixedly connected to the outer wall of the first mounting plate, a detection groove is arranged on the top of the detection cylinder, and a retaining ring is arranged on the side of the detection cylinder away from the first mounting plate.

[0011] Preferably, a rotation limit block is provided on the top surface of the top plate, a mounting groove is opened on the top surface of the top plate, a spring is provided at the inner bottom of the mounting groove, and teeth are provided on the side of the rotation limit block close to the second gear, and the teeth of the rotation limit block can engage with the tooth end of the second gear.

[0012] Preferably, a third through hole is opened on the top surface of the top plate, the diameter of the third through hole is smaller than the diameter of the upper portion of the second gear, and the second gear rotates inside the third through hole.

[0013] Preferably, a first through hole is formed in the middle of the second gear, a second through hole is formed in the middle of the bottom plate, and the centers of the first through hole and the second through hole are in the same straight line.

[0014] A method for detecting a valve processing detection device comprises the following steps: S1. Fix the gate at the bottom of the connecting rod; S2, driving the height control device through the driving device to put the gate plate from the detection slot into the detection device; S3, starting the second hydraulic push rod so that the pressure detection head contacts the surface of the gate plate, controlling the second hydraulic push rod to continuously output pressure, and when the preset pressure is reached, the second hydraulic push rod is used to control the installation block to be retracted; S4, lower the gate to the next preset height through the height control device, and then control the second hydraulic push rod to output pressure. When the preset pressure is reached, the second hydraulic push rod controls the mounting block to be retracted. Repeat this step to perform pressure tests on the gate at different heights; S5. When the test on one side of the gate is completed, the gate is lifted by the height control device to leave the testing device, and then the drive device is meshed with the tooth end of the second gear by the transposition device, and then the second gear is driven to rotate 180 degrees, so that the other side of the gate is facing the pressure detection head, and then the drive device is meshed with the height control device by the transposition device; S6. Repeat S4 and then perform pressure test on the other side of the gate at different heights.

[0015] Working principle: The gate is fixed to the bottom of the connecting rod through the mounting rod, and the third gear is controlled to move upward by the first hydraulic push rod, so that the third gear is meshed with the first gear, and the controller is started by the control switch, and then the servo motor is controlled by the controller to output a rotational force, so as to drive the third gear to rotate, and then the first gear is driven to rotate by the third gear, so as to drive the threaded rod to rotate, and the bottom of the threaded rod is meshed with the upper inner wall of the connecting rod to control the connection rod to descend, and when the gate passes through the detection slot and descends into the detection cylinder, the servo motor outputs a rotational force, and the controller is used to control the second hydraulic push rod to output a thrust, so that the pressure detection head applies pressure to the outer wall of the gate; After one height is pressurized, the second hydraulic push rod is used to control the mounting block to move backward, and then the servo motor is started to continue to output the rotational force to make the gate plate drop to the second height, and then the second hydraulic push rod outputs the thrust to continue to pressurize the gate plate, thereby achieving the purpose of pressure testing at different heights; After the gate plate on one side is tested, the servo motor is used to output reverse rotation force to drive the gate plate to rise, and then the first hydraulic push rod is used to drive the third gear to move, so that the third gear is meshed with the second gear, and the servo motor is started to drive the second gear to rotate 180 degrees, so that the bottom gate plate rotates 180 degrees to achieve the purpose of reversing; Then the first hydraulic push rod is used to control the movement of the third gear, so that the third gear is meshed with the first gear, thereby achieving different height pressure tests on the other side.

[0016] The present invention provides a valve processing detection device and a detection method thereof, which have the following beneficial effects: 1. The present invention can drive the second gear to rotate through the driving device, and then drive the fixed plate to rotate through the limit plate at the bottom of the second gear, so as to reverse the gate plate, so that both the front and rear sides of the gate plate can be tested, thereby solving the problem that most traditional valve detection equipment can only perform pressure detection on one side of the gate plate. In actual use, the medium may flow from two directions, and both the front and rear sides of the gate plate will be subjected to pressure. Using traditional detection equipment for detection will lead to limitations in the test results.

[0017] 2. The present invention can support the edge of the gate plate through the retaining ring on the inner wall of the detection tube, so that the pressure can be borne by the gate plate, avoiding the problem of inaccurate testing caused by the bending of the installation rod to absorb the pressure.

[0018] 3. The present invention can drive the third gear to move up and down on the outer wall of the transmission shaft through the first hydraulic push rod, so that the third gear can be meshed with the first gear and the second gear respectively, thereby achieving the purpose of moving the gate plate up and down and reversing by using a servo motor, thereby achieving the purpose of saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partial three-dimensional structure of the servo motor of the present invention; Figure 3 It is a schematic diagram of a partial three-dimensional structure of the second gear of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of the third through hole of the present invention; Figure 5 It is a schematic diagram of a partial three-dimensional structure of the detection tube of the present invention; Figure 6 It is a schematic diagram of a partial three-dimensional structure of the mounting block of the present invention; Figure 7 It is a schematic diagram of a partial three-dimensional structure of a connecting rod of the present invention; Figure 8 It is a schematic diagram of a partial three-dimensional structure of a threaded rod of the present invention; Fig. 9 It is a schematic diagram of a partial three-dimensional structure of the fixing plate of the present invention.

[0020] Among them, 1. controller; 2. control switch; 3. top plate; 4. detection groove; 5. detection cylinder; 6. first mounting plate; 7. servo motor; 8. rotation limit block; 9. second mounting plate; 10. first gear; 11. second gear; 12. threaded rod; 13. limit plate; 14. fixed plate; 15. connecting rod; 16. gate; 17. first limit plate; 18. transmission shaft; 19. first hydraulic push rod; 20. rotation groove; 21. expansion block; 22. third gear; 23. second limit plate; 24. first through hole; 25. second through hole; 26. mounting groove; 27. third through hole; 28. slide groove; 29. ​​retaining ring; 30. second hydraulic push rod; 31. slider; 32. mounting block; 33. pressure detection head; 34. bottom plate; 35. fourth through hole; 36. first mounting hole; 37. mounting rod; 38. second mounting hole; 39. spring. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Please see attached Figure 1 and attached Figure 7 and attached Figure 8The embodiment of the present invention provides a valve processing detection device, including a top plate 3, a controller 1, a control switch 2 and a second mounting plate 9 are arranged on the top surface of the top plate 3, a driving device is arranged at the bottom of the second mounting plate 9, a shifting device is arranged in the middle of the driving device, a height control device is arranged at the bottom of the second mounting plate 9, a second gear 11 is arranged on the upper part of the top plate 3, the tooth ends of the height control device and the second gear 11 can mesh with the driving device, the bottom of the second gear 11 is fixedly connected to one end of a limiting plate 13, the other end of the limiting plate 13 is fixedly connected to the upper surface of a bottom plate 34, a fixed disk 14 is arranged in the middle of the limiting plate 13, a fourth through hole 35 is opened on the edge of the fixing disk 14, the limiting plate 13 runs through the inside of the fourth through hole 35, a gate plate 16 is arranged at the bottom of the fixing disk 14 through a connecting device, a detection device is arranged at the bottom of the top plate 3, and the controller 1 is electrically connected to the control switch 2, the driving device and the detection device through wires.

[0023] Specifically, the top plate 3 can be used to install the control switch 2, the controller 1 and the second mounting plate 9; the controller 1 can be used to control the operation of the driving device and the detection device; the control switch 2 can be used to control the working state of the controller 1; the second mounting plate 9 can be used to install the servo motor 7 and the threaded rod 12; the driving device can output the rotational force, thereby driving the first gear 10 and the second gear 11 to rotate; the position of the third gear 22 on the surface of the transmission shaft 18 can be controlled by the transposition device, thereby controlling the third gear 22 to mesh with the first gear 10 and the second gear 11 respectively; the height control device can control the height position of the connecting rod 15, thereby lifting or lowering the gate plate 16; the second gear 11 can be used to transmit the rotational force output by the driving device to the limiting plate 13; the limiting plate 13 can be used to transmit the rotational force to the fixed disk 14, and at the same time, when there is no rotational force transmission, the fixed disk 14 can be axially stably moved up and down; the bottom plate 34 can prevent the fixed disk from 14 can escape from the limiting plate 13; the fixing plate 14 can be used to connect the connecting rod 15, so that the rotational force transmitted by the limiting plate 13 can be transmitted to the connecting rod 15; the fourth through hole 35 can be used to place the limiting plate 13; the gate plate 16 can be connected to the bottom of the connecting rod 15 through the connecting device, so that it can rotate or move up and down with the connecting rod 15; the gate plate 16 can be pressure-tested through the detection device; thereby, not only the pressure at different heights of the gate plate 16 can be tested, but also the different surfaces of the gate plate 16 can be tested, thereby increasing the test range of the gate plate 16, and thus solving the problem that most traditional valve detection equipment can only perform pressure detection on one side of the gate plate 16. In actual use, the medium may flow from two directions, and the front and rear sides of the gate plate 16 will be subjected to pressure. Using traditional detection equipment for detection will lead to the problem of limitations in the test results; the controller 1 is electrically connected with the control switch 2, the drive device and the detection device through wires, so that the drive device and the detection device can cooperate closely and complete the detection task in an orderly manner.

[0024] Please see attached Figure 1 -Attached Figure 2 The driving device includes a servo motor 7, and the side of the servo motor 7 away from the output end is fixedly connected to the bottom surface of the second mounting plate 9. The output end of the servo motor 7 is fixedly provided with a transmission shaft 18, and the outer wall of the transmission shaft 18 is provided with a first limiting plate 17 and a second limiting plate 23. Teeth and a third gear 22 are provided between the first limiting plate 17 and the second limiting plate 23. A tooth groove is opened in the middle of the third gear 22, and the teeth and the tooth groove fit together.

[0025] Specifically, the servo motor 7 can output rotational force, thereby driving the transmission shaft 18 to rotate; the transmission shaft 18 can transmit the rotational force to the third gear 22; the first limit plate 17 and the second limit plate 23 can limit the movement range of the third gear 22; the tooth grooves provided in the middle of the teeth and the third gear 22 can enable the third gear 22 to move up and down on the surface of the transmission shaft 18 while also transmitting the rotational force to the third gear 22.

[0026] Please see attached Figure 2 The shifting device includes a first hydraulic push rod 19, and the side of the first hydraulic push rod 19 away from the output end is fixedly connected to the bottom of the servo motor 7. The output end of the first hydraulic push rod 19 is fixedly connected with an expansion block 21. The side of the third gear 22 close to the servo motor 7 is provided with a rotating groove 20, and the expansion block 21 is located inside the rotating groove 20.

[0027] Specifically, the first hydraulic push rod 19 can output thrust; the expansion block 21 can connect the third gear 22, thereby driving the third gear 22 to move up and down; the rotating groove 20 can place the expansion block 21, thereby driving the third gear 22 to move up and down through the first hydraulic push rod 19, and at the same time will not affect the rotation of the third gear 22.

[0028] Please see attached Figure 1 and attached Figure 2 and attached Figure 4 The height control device includes a threaded rod 12, the top of the threaded rod 12 is rotatably connected to the bottom surface of the second mounting plate 9, the outer wall of the threaded rod 12 is fixedly connected to the middle of the first gear 10, the tooth end of the first gear 10 can engage with the tooth end of the third gear 22, and the outer wall of the threaded rod 12 is provided with an external thread at the lower position.

[0029] Specifically, the threaded rod 12 can transmit the rotational force; the first gear 10 can transmit the rotational force transmitted by the third gear 22 to the threaded rod 12; the threaded rod 12 is provided with an external thread at the lower position of the outer wall thereof, which can be threadedly connected with the upper section of the connecting rod 15, and thus the connecting rod 15 can be driven to rise and fall by rotating the threaded rod 12.

[0030] Please see attached Figure 7 -Attached Fig. 9The connecting device includes a connecting rod 15, the top of which is fixedly connected to the bottom of the fixed disk 14, a first mounting hole 36 is provided at the bottom of the connecting rod 15, an internal thread is provided at the center of the upper part of the connecting rod 15, a second mounting hole 38 is provided at the center of the fixed disk 14, the threaded rod 12 passes through the center of the second mounting hole 38, a mounting rod 37 is provided at the top of the gate 16, an external thread is provided on the outer wall of the mounting rod 37, an internal thread is provided on the inner wall of the first mounting hole 36, and the mounting rod 37 is threadedly connected to the inner wall of the first mounting hole 36.

[0031] Specifically, the connecting rod 15 can be threadedly connected to the threaded rod 12, and can also be connected to the gate plate 16; the fixing plate 14 can be connected to the connecting rod 15; the first mounting hole 36 can be threadedly connected to the mounting rod 37, and the gate plate 16 can be fixed to the bottom of the connecting rod 15; the second mounting hole 38 can be used to place the threaded rod 12, and then be threadedly connected to the threaded rod 12.

[0032] Please see attached Figure 5 -Attached Figure 6 The detection device includes a detection cylinder 5, the inner wall of the detection cylinder 5 is provided with a slide groove 28, a mounting block 32 is arranged inside the detection cylinder 5, the outer wall of the mounting block 32 is provided with a slider 31, the outer wall of the slider 31 fits with the inner wall of the slide groove 28, a pressure detection head 33 is arranged at one end of the mounting block 32, the other end of the mounting block 32 is fixedly connected to the output end of the second hydraulic push rod 30, the side of the second hydraulic push rod 30 away from the output end is fixedly connected to the outer wall of the first mounting plate 6, a detection groove 4 is arranged on the top of the detection cylinder 5, and a retaining ring 29 is arranged on the side of the detection cylinder 5 away from the first mounting plate 6.

[0033] Specifically, the detection cylinder 5 can be used to place the mounting block 32; the slide groove 28 can be used to fit the slider 31, thereby avoiding rotation when the mounting block 32 is pushed to move; the pressure detection head 33 can be used to detect the pressure in real time, thereby testing the pressure resistance of the gate 16; the second hydraulic push rod 30 can be used to output thrust, thereby pushing the mounting block 32 to move back and forth, thereby outputting thrust to the gate 16; the first mounting plate 6 can be used to install the second hydraulic push rod 30; the detection groove 4 can be used to place the gate 16 into the detection cylinder 5; the retaining ring 29 can provide support for the edge of the gate 16, thereby avoiding bending of the mounting rod 37 when pressure is applied to the gate 16, thereby avoiding deviation in the detection data.

[0034] Please see attached Figure 4A rotation limit block 8 is provided on the top surface of the top plate 3, a mounting groove 26 is opened on the top surface of the top plate 3, a spring 39 is provided at the inner bottom of the mounting groove 26, and teeth are provided on the side of the rotation limit block 8 close to the second gear 11, and the teeth of the rotation limit block 8 can mesh with the tooth end of the second gear 11.

[0035] Specifically, the rotation limit block 8 can prevent the second gear 11 from rotating; the mounting groove 26 can be used to place the rotation limit block 8; the spring 39 provided at the inner bottom of the mounting groove 26 can push the rotation limit block 8 out of the mounting groove 26, so that the rotation limit block 8 is engaged with the second gear 11, thereby limiting the rotation of the second gear 11; when the first hydraulic push rod 19 pushes the third gear 22 downward, the rotation limit block 8 can be pressed downward into the mounting groove 26 at the same time, thereby releasing the rotation restriction on the second gear 11, and then the second gear 11 can be driven to rotate by the third gear 22. When the second gear 11 has completed its rotation, the third gear 22 is driven to rise by the first hydraulic push rod 19. At this time, the spring 39 will push the rotation limit block 8 to rise, and then mesh with the tooth end of the second gear 11, thereby preventing the second gear 11 from rotating.

[0036] Please see attached Figure 4 A third through hole 27 is formed on the top surface of the top plate 3 . The diameter of the third through hole 27 is smaller than the diameter of the upper portion of the second gear 11 . The second gear 11 rotates inside the third through hole 27 .

[0037] Specifically, the third through hole 27 can serve to place the second gear 11 , thereby enabling the second gear 11 to stably rotate on the top surface of the top plate 3 .

[0038] Please see attached Figure 3 A first through hole 24 is formed in the middle of the second gear 11 , and a second through hole 25 is formed in the middle of the bottom plate 34 . The centers of the first through hole 24 and the second through hole 25 are on the same straight line.

[0039] Specifically, the first through hole 24 can serve as a passage for the threaded rod 12, thereby preventing the rotation of the threaded rod 12 from affecting the second gear 11; the second through hole 25 can serve as a passage for the connecting rod 15; and the centers of the first through hole 24 and the second through hole 25 are in the same straight line, so that the movement of the threaded rod 12 and the connecting rod 15 is not affected by surrounding devices.

[0040] Please see attached Figure 1 -Attached Fig. 9 , a detection method for a valve processing detection device, comprising the following steps: S1, fix the gate plate 16 to the bottom of the connecting rod 15; S2, driving the height control device through the driving device to put the gate plate 16 from the detection slot 4 into the detection device; S3, start the second hydraulic push rod 30 so that the pressure detection head 33 contacts the surface of the gate plate 16, control the second hydraulic push rod 30 to continuously output pressure, and when the preset pressure is reached, control the installation block 32 to be retracted through the second hydraulic push rod 30; S4, lowering the gate plate 16 to the next preset height through the height control device, and then controlling the second hydraulic push rod 30 to output pressure. When the preset pressure is reached, the second hydraulic push rod 30 controls the mounting block 32 to be retracted, and repeating this step to perform pressure tests on different heights of the gate plate 16; S5. When the test on one side of the gate plate 16 is completed, the gate plate 16 is lifted by the height control device to leave the test device, and then the drive device is meshed with the tooth end of the second gear 11 by the transposition device, and then the second gear 11 is driven to rotate 180 degrees, so that the other side of the gate plate 16 faces the pressure detection head 33, and then the drive device is meshed with the height control device by the transposition device; S6. Repeat the contents of S4 to perform pressure tests on the other side of the gate plate 16 at different heights.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve processing inspection device, comprising a top plate (3), characterized in that: The top surface of the top plate (3) is provided with a controller (1), a control switch (2) and a second mounting plate (9); the bottom of the second mounting plate (9) is provided with a driving device; a shifting device is provided in the middle of the driving device; a height control device is provided at the bottom of the second mounting plate (9); a second gear (11) is provided at the top of the top plate (3); the tooth ends of the height control device and the second gear (11) are capable of meshing with the driving device; the bottom of the second gear (11) is fixedly connected to one end of the limiting plate (13); The other end of the limiting plate (13) is fixedly connected to the upper surface of the bottom plate (34); a fixing plate (14) is arranged in the middle of the limiting plate (13); a fourth through hole (35) is opened at the edge of the fixing plate (14); the limiting plate (13) passes through the inside of the fourth through hole (35); a gate plate (16) is arranged at the bottom of the fixing plate (14) via a connecting device; a detection device is arranged at the bottom of the top plate (3); and the controller (1) is electrically connected to the control switch (2), the driving device and the detection device via electric wires.

2. A valve processing detection device according to claim 1, characterized in that: The driving device comprises a servo motor (7), a side of the servo motor (7) away from the output end is fixedly connected to the bottom surface of the second mounting plate (9), the output end of the servo motor (7) is fixedly provided with a transmission shaft (18), the outer wall of the transmission shaft (18) is provided with a first limiting plate (17) and a second limiting plate (23), teeth and a third gear (22) are provided between the first limiting plate (17) and the second limiting plate (23), a tooth groove is provided in the middle of the third gear (22), and the teeth and the tooth groove are matched.

3. A valve processing detection device according to claim 2, characterized in that: The shifting device comprises a first hydraulic push rod (19), wherein a side of the first hydraulic push rod (19) away from an output end is fixedly connected to the bottom of a servo motor (7), an expansion block (21) is fixedly connected to the output end of the first hydraulic push rod (19), a rotation groove (20) is formed on a side of the third gear (22) close to the servo motor (7), and the expansion block (21) is located inside the rotation groove (20).

4. A valve processing detection device according to claim 1, characterized in that: The height control device comprises a threaded rod (12), the top of the threaded rod (12) being rotatably connected to the bottom surface of the second mounting plate (9), the outer wall of the threaded rod (12) being fixedly connected to the middle part of the first gear (10), the tooth end of the first gear (10) being able to mesh with the tooth end of the third gear (22), and the outer wall of the threaded rod (12) being provided with an external thread at a lower position.

5. A valve processing detection device according to claim 4, characterized in that: The connecting device comprises a connecting rod (15), the top of the connecting rod (15) is fixedly connected to the bottom of the fixed plate (14), the bottom of the connecting rod (15) is provided with a first mounting hole (36), the center of the upper part of the connecting rod (15) is provided with an internal thread, the center of the fixed plate (14) is provided with a second mounting hole (38), the threaded rod (12) passes through the center of the second mounting hole (38), the top of the gate plate (16) is provided with a mounting rod (37), the outer wall of the mounting rod (37) is provided with an external thread, the inner wall of the first mounting hole (36) is provided with an internal thread, and the mounting rod (37) is threadedly connected to the inner wall of the first mounting hole (36).

6. A valve processing detection device according to claim 1, characterized in that: The detection device comprises a detection cylinder (5), the inner wall of the detection cylinder (5) is provided with a slide groove (28), a mounting block (32) is arranged inside the detection cylinder (5), the outer wall of the mounting block (32) is provided with a slide block (31), the outer wall of the slide block (31) is fitted with the inner wall of the slide groove (28), one end of the mounting block (32) is provided with a pressure detection head (33), the other end of the mounting block (32) is fixedly connected to the output end of the second hydraulic push rod (30), the side of the second hydraulic push rod (30) away from the output end is fixedly connected to the outer wall of the first mounting plate (6), the top of the detection cylinder (5) is provided with a detection groove (4), and the side of the detection cylinder (5) away from the first mounting plate (6) is provided with a retaining ring (29).

7. A valve processing detection device according to claim 1, characterized in that: A rotation limit block (8) is arranged on the top surface of the top plate (3), a mounting groove (26) is provided on the top surface of the top plate (3), a spring (39) is arranged at the inner bottom of the mounting groove (26), and teeth are arranged on a side of the rotation limit block (8) close to the second gear (11), and the teeth of the rotation limit block (8) can mesh with the tooth end of the second gear (11).

8. The valve processing detection equipment according to claim 1, characterized in that: A third through hole (27) is provided on the top surface of the top plate (3); the diameter of the third through hole (27) is smaller than the diameter of the upper portion of the second gear (11); and the second gear (11) rotates inside the third through hole (27).

9. The valve processing detection equipment according to claim 1, characterized in that: A first through hole (24) is formed in the middle of the second gear (11), and a second through hole (25) is formed in the middle of the bottom plate (34), wherein the centers of the first through hole (24) and the second through hole (25) are on the same straight line.

10. A detection method for valve processing detection equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Fix the gate plate (16) to the bottom of the connecting rod (15); S2, driving the height control device through the driving device to place the gate plate (16) from the detection slot (4) into the detection device; S3, starting the second hydraulic push rod (30) so that the pressure detection head (33) contacts the surface of the gate plate (16), controlling the second hydraulic push rod (30) to continuously output pressure, and when a preset pressure is reached, controlling the mounting block (32) to be retracted through the second hydraulic push rod (30); S4, lowering the gate plate (16) to the next preset height through the height control device, and then controlling the second hydraulic push rod (30) to output pressure, and when the preset pressure is reached, controlling the mounting block (32) to be retracted through the second hydraulic push rod (30), and repeating this step to perform pressure tests on the gate plate (16) at different heights; S5. When the test on one side of the gate plate (16) is completed, the gate plate (16) is lifted by the height control device so as to leave the testing device, and then the drive device is meshed with the tooth end of the second gear (11) by the position change device, and then the second gear (11) is driven to rotate 180 degrees, so that the other side of the gate plate (16) faces the pressure detection head (33), and then the drive device is meshed with the height control device by the position change device; S6. Repeat S4 to perform pressure tests on the other side of the gate plate (16) at different heights.

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