A detection device for valve processing and its detection method

Abstract

The present invention relates to the technical field of valve processing and detection, and discloses a detection device and a detection method for valve processing, including 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. A position-changing 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 above the top plate. The tooth ends of the height control device and the second gear can be engaged with the driving device. One end of a limiting piece is fixedly connected to the bottom of the second gear, and the other end of the limiting piece is fixedly connected to the upper surface of a bottom plate. The driving device can drive the second gear to rotate, and then drive a fixed disk to rotate through the limiting piece at the bottom of the second gear, thereby solving the problem that most of the traditional valve detection devices can only perform pressure detection on one side of the gate plate, resulting in limitations in test results.

Description

Technical Field

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

[0002] The gate plate is a key component in the valve and plays a crucial role in the pipeline system. It is usually in the shape of a flat plate, and most of its materials are metals, such as carbon steel, stainless steel, etc. There are also some made of reinforced plastics and other materials to adapt to different working environments and medium requirements. The main function of the gate plate is to cut off or conduct the fluid medium in the pipeline. When the valve is opened, the gate plate is lifted, and the fluid can flow through the pipeline freely; when the valve is closed, the gate plate descends to fit tightly with the valve seat, preventing the fluid from flowing and achieving the sealing and cutting-off function. Its sealing performance directly affects the use effect of the valve and the safety and stability of the pipeline system. To ensure the stable operation of the gate plate, there are many considerations in design and manufacturing. Its shape design needs to meet the requirement 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 plate is also very crucial. Through special treatments, such as chrome plating, coating with corrosion-resistant coatings, etc., its wear resistance and corrosion resistance can be improved, and its service life can be extended. In some special working conditions with high pressure, high temperature or conveying strongly corrosive media, the requirements for the material selection, structural design and manufacturing accuracy of the gate plate are more stringent to ensure the reliable operation of the entire pipeline system.

[0003] Most of the traditional valve detection devices can only perform pressure detection on one side of the gate plate. In actual use, the medium may flow in two directions, and both the front and back sides of the gate plate will be subjected to pressure. Using the traditional detection device for detection will lead to the problem of limited test results. Summary of the Invention

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

[0005] To achieve the above object, the present invention is realized by the following technical solutions: A detection device and a detection method for valve processing, including a top plate, on the top surface of the top plate, there are a controller, a control switch, and a second mounting plate. At the bottom of the second mounting plate, there is a driving device, and a position-changing device is arranged in the middle of the driving device. At the bottom of the second mounting plate, there is a height control device. At the upper part of the top plate, there is a second gear. The tooth ends of the height control device and the second gear can mesh with the 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 a bottom plate. In the middle of the limiting piece, there is a fixed disk, and a fourth through hole is opened at the edge of the fixed disk. The limiting piece penetrates through the inside of the fourth through hole. At the bottom of the fixed disk, a gate plate is arranged through a connecting device. At the bottom of the top plate, there is a detection device. The controller is electrically connected to the control switch, the driving device, and the detection device through electric wires.

[0006] Preferably, the driving device includes a servo motor. One 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. On the outer wall of the transmission shaft, there are a first limiting disk and a second limiting disk. Between the first limiting disk and the second limiting disk, there are teeth and a third gear. In the middle of the third gear, there is a tooth groove, and the teeth and the tooth groove fit.

[0007] Preferably, the position-changing device includes a first hydraulic push rod. One 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 enlarged block. On one side of the third gear close to the servo motor, there is a rotation groove, and the enlarged block is located inside the rotation 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 of a first gear. The tooth end of the first gear can mesh with the tooth end of the third gear. At a position close to the lower part of the outer wall of the threaded rod, there is an external thread.

[0009] Preferably, the connecting device includes a connecting rod. The top of the connecting rod is fixedly connected to the bottom of the fixed disk. At the bottom of the connecting rod, there is a first mounting hole. In the center of the upper part of the connecting rod, there is an internal thread. In the center of the fixed disk, there is a second mounting hole. The threaded rod penetrates through the center of the second mounting hole. At the top of the gate plate, there is a mounting rod. On the outer wall of the mounting rod, there is an external thread. The inner wall of the first mounting hole has an internal thread, 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. A chute is provided on the inner wall of the detection cylinder. An installation block is arranged inside the detection cylinder. A slider is provided on the outer wall of the installation block. The outer wall of the slider fits with the inner wall of the chute. One end of the installation block is provided with a pressure detection head. The other end of the installation block is fixedly connected to the output end of a second hydraulic push rod. The side of the second hydraulic push rod away from the output end is fixedly connected to the outer wall of a first mounting plate. A detection groove is provided on the top of the detection cylinder. A retaining ring is arranged on the side of the detection cylinder away from the first mounting plate.

[0011] Preferably, a rotation limiting block is provided on the top surface of the top plate. An installation groove is provided on the top surface of the top plate. A spring is provided at the inner bottom of the installation groove. Teeth are provided on the side of the rotation limiting block close to the second gear. The teeth of the rotation limiting block can mesh with the tooth ends of the second gear.

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

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

[0014] A detection method for a detection device for valve processing includes the following steps:

[0015] S1. Fix the gate plate at the bottom of the connecting rod.

[0016] S2. Drive the height control device through the driving device to put the gate plate into the detection device from the detection groove.

[0017] S3. Start the second hydraulic push rod to make the pressure detection head contact the surface of the gate plate. Control the second hydraulic push rod to continuously output pressure. When the preset pressure is reached, control the installation block to retract through the second hydraulic push rod.

[0018] S4. Lower the gate plate to the next preset height through the height control device, then control the second hydraulic push rod to output pressure. When the preset pressure is reached, control the installation block to retract through the second hydraulic push rod. Repeat this step to perform pressure tests on different heights of the gate plate.

[0019] S5. When one side of the gate plate has been tested, lift the gate plate through the height control device to leave the test device. Then, through the transposition device, make the driving device mesh with the tooth end of the second gear. Then drive the second gear to rotate 180 degrees, so that the other side of the gate plate faces the pressure detection head. Then, through the transposition device, make the driving device mesh with the height control device.

[0020] S6. Repeat the content of S4 to perform pressure tests on different heights on the other side of the gate plate.

[0021] Working principle: Fix the gate plate at the bottom of the connecting rod through the mounting rod. Control the third gear to move upward by the first hydraulic push rod, so that the third gear meshes with the first gear. Start the controller through the control switch, and then use the controller to control the servo motor to output rotational force, which drives the third gear to rotate. Then use the third gear to drive the first gear to rotate, thereby driving the threaded rod to rotate. Control the connecting rod to descend by the engagement of the bottom of the threaded rod with the inner wall of the upper part of the connecting rod. When the gate plate descends into the detection cylinder through the detection slot, pause the output rotational force of the servo motor. Use the controller to control the second hydraulic push rod to output thrust, so that the pressure detection head applies pressure on the outer wall of the gate plate.

[0022] After the pressure application at one height is completed, use the second hydraulic push rod to control the mounting block to move backward, and then start the servo motor to continue to output rotational force to make the gate plate descend to the second height. Then output thrust through the second hydraulic push rod to continue to apply pressure to the gate plate, so as to achieve the purpose of pressure tests at different heights.

[0023] After the test of one side of the gate plate is completed, use the servo motor to output reverse rotational force to drive the gate plate to rise. Then use the first hydraulic push rod to drive the third gear to move, so that the third gear meshes with the second gear. Start the servo motor to drive the second gear to rotate 180 degrees, so that the bottom gate plate rotates 180 degrees to achieve the purpose of commutation.

[0024] Then use the first hydraulic push rod to control the third gear to move, so that the third gear meshes with the first gear, and thus the pressure tests at different heights on the other side can be achieved.

[0025] The present invention provides a detection device and a detection method for valve processing. It has the following beneficial effects:

[0026] 1. The driving device of the present invention can drive the second gear to rotate, and then drive the fixed disk to rotate through the limiting piece at the bottom of the second gear, thereby commuting the gate plate. Thus, both the front and back sides of the gate plate can be tested, solving 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 in two directions, and both the front and back sides of the gate plate will be subjected to pressure. Using traditional detection devices for detection will result in limitations in test results.

[0027] 2. The retaining ring on the inner wall of the detection cylinder of the present invention can support the edge of the gate plate, so that the pressure can be borne by the gate plate, avoiding the problem that the mounting rod bends to absorb pressure and leads to inaccurate testing.

[0028] 3. In the present invention, the first hydraulic push rod can drive the third gear to move up and down on the outer wall of the transmission shaft, so that the third gear can be engaged with the first gear and the second gear respectively. Thus, the purpose of moving the gate up and down and reversing can be achieved by using a single servo motor, thereby saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is the front three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 is the partial three-dimensional structural schematic diagram at the servo motor of the present invention;

[0031] Figure 3 is the partial three-dimensional structural schematic diagram at the second gear of the present invention;

[0032] Figure 4 is the partial three-dimensional structural schematic diagram at the third through hole of the present invention;

[0033] Figure 5 is the partial three-dimensional structural schematic diagram at the detection cylinder of the present invention;

[0034] Figure 6 is the partial three-dimensional structural schematic diagram at the mounting block of the present invention;

[0035] Figure 7 is the partial three-dimensional structural schematic diagram at the connecting rod of the present invention;

[0036] Figure 8 is the partial three-dimensional structural schematic diagram at the threaded rod of the present invention;

[0037] Figure 9 is the partial three-dimensional structural schematic diagram at the fixed disk of the present invention.

[0038] Wherein, 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. Limiting piece; 14. Fixed disk; 15. Connecting rod; 16. Gate; 17. First limiting disk; 18. Transmission shaft; 19. First hydraulic push rod; 20. Rotation groove; 21. Enlarged block; 22. Third gear; 23. Second limiting disk; 24. First through hole; 25. Second through hole; 26. Mounting groove; 27. Third through hole; 28. Sliding groove; 29. Retaining ring; 30. Second hydraulic push rod; 31. Slide block; 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 OF THE INVENTION

[0039] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0040] Please refer to the attached Figure 1 and the attached Figure 7 and the attached Figure 8 An inspection device for valve processing according to an embodiment of the present invention includes 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 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 9. A second gear 11 is arranged above the top plate 3. The tooth ends of the height control device and the second gear 11 can be engaged with the driving device. One end of a limiting piece 13 is fixedly connected to the bottom of the second gear 11, and the other end of the limiting piece 13 is fixedly connected to the upper surface of a bottom plate 34. A fixing disk 14 is arranged in the middle of the limiting piece 13. A fourth through hole 35 is formed in the edge of the fixing disk 14. The limiting piece 13 penetrates 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. An inspection device is arranged at the bottom of the top plate 3. The controller 1 is electrically connected to the control switch 2, the driving device, and the inspection device through wires.

[0041] 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 detecting 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 be used to output a rotational force to drive the first gear 10 and the second gear 11 to rotate; the shifting device can be used to control the position of the third gear 22 on the surface of the transmission shaft 18, thereby controlling the third gear 22 to mesh with the first gear 10 and the second gear 11 respectively; the height control device can be used to 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 piece 13; the limiting piece 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 axially and stably move up and down; the bottom plate 34 can be used to prevent the fixed disk 14 from disengaging from the limiting piece 13; the fixed disk 14 can be used to connect the connecting rod 15, and thus can transmit the rotational force transmitted by the limiting piece 13 to the connecting rod 15; the fourth through hole 35 can be used to place the limiting piece 13; the connecting device can connect the gate plate 16 to the bottom of the connecting rod 15, and thus can rotate or move up and down together with the connecting rod 15; the detecting device can be used to perform a pressure resistance test on the gate plate 16; thus, not only can the pressure at different height positions of the gate plate 16 be tested, but also different surfaces of the gate plate 16 can be tested, thereby increasing the test range of the gate plate 16, and further solving the problem that most traditional valve detection devices can only perform pressure detection on one side of the gate plate 16. In actual use, the medium may flow in two directions, and both the front and rear sides of the gate plate 16 will be subjected to pressure. Using traditional detection equipment for detection will result in limitations in the test results; the controller 1 is electrically connected to the control switch 2, the driving device, and the detecting device through wires, which can enable the driving device and the detecting device to closely cooperate and orderly complete the detection task.

[0042] Please refer to the attached Figure 1 - attached Figure 2 figure. The driving device includes a servo motor 7. One 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 disk 17 and a second limiting disk 23. Between the first limiting disk 17 and the second limiting disk 23, there are teeth and a third gear 22. A tooth groove is formed in the middle of the third gear 22, and the teeth and the tooth groove fit.

[0043] Specifically, the servo motor 7 can output rotational force to drive the transmission shaft 18 to rotate; the transmission shaft 18 can transmit the rotational force to the third gear 22; the first limiting disk 17 and the second limiting disk 23 can limit the moving range of the third gear 22; the engagement between the teeth and the tooth groove formed in the middle of the third gear 22 enables the third gear 22 to move up and down on the surface of the transmission shaft 18 while transmitting the rotational force to the third gear 22.

[0044] Please refer to the appendix Figure 2 , the transposition device includes a first hydraulic push rod 19. One side of the first hydraulic push rod 19 away from the output end is fixedly connected to the bottom of the servo motor 7, and 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 one side of the third gear 22 close to the servo motor 7, and the expansion block 21 is located inside the rotation groove 20.

[0045] Specifically, the first hydraulic push rod 19 can output thrust; the expansion block 21 can connect the third gear 22 to drive the third gear 22 to move up and down; the rotation groove 20 can place the expansion block 21, so that the first hydraulic push rod 19 can drive the third gear 22 to move up and down without affecting the rotation of the third gear 22.

[0046] Please refer to the appendix Figure 1 and the appendix Figure 2 and the appendix 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 mesh with the tooth end of the third gear 22. An external thread is provided at a position near the lower part of the outer wall of the threaded rod 12.

[0047] Specifically, the threaded rod 12 can transmit rotational force; the first gear 10 can transmit the rotational force transmitted by the third gear 22 to the threaded rod 12; the external thread provided at a position near the lower part of the outer wall of the threaded rod 12 can be threadedly connected to the upper section of the connecting rod 15, so that the connecting rod 15 can be driven to rise and fall by rotating the threaded rod 12.

[0048] Please refer to the appendix Figure 7 - the appendix Figure 9, The connecting device includes a connecting rod 15. The top of the connecting rod 15 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. An installation rod 37 is provided at the top of the gate plate 16. An external thread is provided on the outer wall of the installation rod 37. An internal thread is provided on the inner wall of the first mounting hole 36. The installation rod 37 is threadedly connected to the inner wall of the first mounting hole 36.

[0049] Specifically, the connecting rod 15 can play a role in threadedly connecting the threaded rod 12 and also play a role in connecting the gate plate 16; the fixed disk 14 can play a role in connecting the connecting rod 15; the first mounting hole 36 can play a role in threadedly connecting the installation rod 37, thereby fixing the gate plate 16 at the bottom of the connecting rod 15; the second mounting hole 38 can play a role in placing the threaded rod 12 and then threadedly connecting with the threaded rod 12.

[0050] Please refer to the appendix Figure 5 - appendix Figure 6 , The detection device includes a detection cylinder 5. A chute 28 is provided on the inner wall of the detection cylinder 5. An installation block 32 is provided inside the detection cylinder 5. A slider 31 is provided on the outer wall of the installation block 32. The outer wall of the slider 31 fits with the inner wall of the chute 28. A pressure detection head 33 is provided at one end of the installation block 32. The other end of the installation 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 slot 4 is provided at the top of the detection cylinder 5. A retaining ring 29 is provided on the side of the detection cylinder 5 away from the first mounting plate 6.

[0051] Specifically, the detection cylinder 5 can play a role in placing the installation block 32; the chute 28 can play a role in fitting with the slider 31, thereby preventing rotation when pushing the installation block 32 to move; the pressure detection head 33 can play a role in real-time pressure detection, thereby testing the compressive capacity of the gate plate 16; the second hydraulic push rod 30 can play a role in outputting thrust, thereby pushing the installation block 32 to move back and forth, and then outputting thrust to the gate plate 16; the first mounting plate 6 can play a role in mounting the second hydraulic push rod 30; the detection slot 4 can play a role in putting the gate plate 16 into the detection cylinder 5; the retaining ring 29 can play a role in providing support for the edge of the gate plate 16, thereby preventing the installation rod 37 from bending when pressing on the gate plate 16 and avoiding deviation of the detection data.

[0052] Please refer to the appendix Figure 4, a rotation limiting block 8 is provided on the top surface of the top plate 3. An installation groove 26 is formed on the top surface of the top plate 3. A spring 39 is provided at the inner bottom of the installation groove 26. Teeth are provided on one side of the rotation limiting block 8 close to the second gear 11, and the teeth of the rotation limiting block 8 can mesh with the tooth ends of the second gear 11.

[0053] Specifically, the rotation limiting block 8 can prevent the second gear 11 from rotating; the installation groove 26 can be used to place the rotation limiting block 8; the spring 39 provided at the inner bottom of the installation groove 26 can push the rotation limiting block 8 out of the installation groove 26, so that the rotation limiting block 8 meshes with the second gear 11, thereby achieving the function of restricting the rotation of the second gear 11; when the first hydraulic push rod 19 pushes the third gear 22 downward, it can simultaneously press the rotation limiting block 8 downward into the installation groove 26, 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 finishes rotating, the first hydraulic push rod 19 drives the third gear 22 to rise. At this time, the spring 39 will push the rotation limiting block 8 to rise, and then mesh with the tooth ends of the second gear 11, thus preventing the second gear 11 from rotating.

[0054] Please refer to the appendix 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 part of the second gear 11, and the second gear 11 rotates inside the third through hole 27.

[0055] Specifically, the third through hole 27 can be used to place the second gear 11; thereby enabling the second gear 11 to rotate stably on the top surface of the top plate 3.

[0056] Please refer to the appendix 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.

[0057] Specifically, the first through hole 24 can be used for the threaded rod 12 to pass through, thereby avoiding the influence of the rotation of the threaded rod 12 on the second gear 11; the second through hole 25 can be used for the connecting rod 15 to pass through; the centers of the first through hole 24 and the second through hole 25 being on the same straight line can enable the movements of the threaded rod 12 and the connecting rod 15 to be unaffected by the surrounding devices.

[0058] Please refer to the appendix Figure 1 - appendix Figure 9 , a detection method for a detection device used in valve processing, includes the following steps:

[0059] S1. Fix the gate plate 16 at the bottom of the connecting rod 15;

[0060] S2. Drive the height control device through the drive device, and then place the gate 16 from the detection groove 4 into the detection device;

[0061] S3. Start the second hydraulic push rod 30 to make the pressure detection head 33 contact the surface of the gate 16, control the second hydraulic push rod 30 to continuously output pressure, and when the preset pressure is reached, control the mounting block 32 to retract through the second hydraulic push rod 30;

[0062] S4. Lower the gate 16 to the next preset height through the height control device, then control the second hydraulic push rod 30 to output pressure, and when the preset pressure is reached, control the mounting block 32 to retract through the second hydraulic push rod 30, and repeat this step to perform pressure tests on different heights of the gate 16;

[0063] S5. When one side of the gate 16 has been tested, lift the gate 16 through the height control device to leave the test device, then make the drive device mesh with the tooth end of the second gear 11 through the transposition device, then drive the second gear 11 to rotate 180 degrees, so that the other side of the gate 16 faces the pressure detection head 33, and then make the drive device mesh with the height control device through the transposition device;

[0064] S6. Repeat the content of S4 to perform pressure tests on different heights of the other side of the gate 16.

[0065] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for valve processing, including a top plate (3), characterized in that, On the top surface of the top plate (3), there are a controller (1), a control switch (2), and a second mounting plate (9). At the bottom of the second mounting plate (9), there is a driving device. A position-changing device is arranged in the middle of the driving device. At the bottom of the second mounting plate (9), there is a height control device. At the upper part of the top plate (3), there is a second gear (11). 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 piece (13). The other end of the limiting piece (13) is fixedly connected to the upper surface of the bottom plate (34). In the middle of the limiting piece (13), there is a fixing disk (14). At the edge of the fixing disk (14), there is a fourth through hole (35). The limiting piece (13) passes through the inside of the fourth through hole (35). At the bottom of the fixing disk (14), there is a gate plate (16) arranged through a connecting device. At the bottom of the top plate (3), there is a detecting device. The controller (1) is electrically connected to the control switch (2), the driving device, and the detecting device through electric wires; The driving device includes a servo motor (7). One 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). On the outer wall of the transmission shaft (18), there are a first limiting disk (17) and a second limiting disk (23). Between the first limiting disk (17) and the second limiting disk (23), there are teeth and a third gear (22). In the middle of the third gear (22), there is a tooth groove, and the teeth and the tooth groove fit; The position-changing device includes a first hydraulic push rod (19). One 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 to an enlarging block (21). On one side of the third gear (22) close to the servo motor (7), there is a rotating groove (20). The enlarging block (21) is located inside the rotating groove (20); 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 a first gear (10). The tooth end of the first gear (10) can mesh with the tooth end of the third gear (22). At a position close to the lower part of the outer wall of the threaded rod (12), there is an external thread; On the top surface of the top plate (3), there is a rotating limiting block (8). On the top surface of the top plate (3), there is a mounting groove (26). At the inner bottom of the mounting groove (26), there is a spring (39). On one side of the rotating limiting block (8) close to the second gear (11), there are teeth. The teeth of the rotating limiting block (8) can mesh with the tooth end of the second gear (11); A third through hole (27) is formed in the top surface of the top plate (3). The diameter of the third through hole (27) is smaller than the diameter of the upper part of the second gear (11). The second gear (11) rotates inside the third through hole (27). A first through hole (24) is formed in the middle of the second gear (11). 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.

2. The inspection device for valve processing according to claim 1, characterized in that The connecting device includes a connecting rod (15). The top of the connecting rod (15) is fixedly connected to the bottom of the fixed disk (14). A first mounting hole (36) is formed in the bottom of the connecting rod (15). Internal threads are provided at the center of the upper part of the connecting rod (15). A second mounting hole (38) is formed in the center of the fixed disk (14). The threaded rod (12) passes through the center of the second mounting hole (38). An installation rod (37) is provided at the top of the gate plate (16). External threads are provided on the outer wall of the installation rod (37). Internal threads are provided on the inner wall of the first mounting hole (36). The installation rod (37) is threadedly connected to the inner wall of the first mounting hole (36).

3. The inspection device for valve processing according to claim 2, wherein, The detection device includes a detection cylinder (5). A sliding groove (28) is formed in the inner wall of the detection cylinder (5). An installation block (32) is arranged inside the detection cylinder (5). A sliding block (31) is arranged on the outer wall of the installation block (32). The outer wall of the sliding block (31) fits with the inner wall of the sliding groove (28). A pressure detection head (33) is arranged at one end of the installation block (32). The other end of the installation 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 formed in the top of the detection cylinder (5). A retaining ring (29) is arranged on the side of the detection cylinder (5) away from the first mounting plate (6).

4. A detection method for a detection device used in valve processing, based on the detection device for valve processing described in claim 3, characterized in that, Including the following steps: S1. Fix the gate plate (16) at the bottom of the connecting rod (15); S2. Drive the height control device through the driving device to put the gate plate (16) from the detection groove (4) into the detection device; S3. Start the second hydraulic push rod (30) to make the pressure detection head (33) contact 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 mounting block (32) to retract through the second hydraulic push rod (30); S4. Lower the gate plate (16) to the next preset height through the height control device, then control the second hydraulic push rod (30) to output pressure, and when the preset pressure is reached, control the mounting block (32) to retract through the second hydraulic push rod (30), and repeat this step to conduct pressure tests on different heights of the gate plate (16); S5. When one side of the gate plate (16) has been tested, lift the gate plate (16) through the height control device to leave the test device, then make the driving device engage with the tooth end of the second gear (11) through the transposition device, then drive the second gear (11) to rotate 180 degrees, so that the other side of the gate plate (16) faces the pressure detection head (33), and then make the driving device engage with the height control device through the transposition device; S6. Repeat the content of S4 to conduct pressure tests on different heights of the other side of the gate plate (16).

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