Large-diameter numerical control valve testing equipment

Abstract

The utility model discloses a large aperture numerical control valve test device, relates to the valve detection technology field, and comprises a detection bench, the detection bench is provided with an overturning station and a moving station, the overturning station and the moving station are respectively provided with a synchronous grasping mechanism, the synchronous grasping mechanism comprises a clamping sealing blind plate, and the clamping sealing blind plate is provided with a clamping groove. Directional moving rails are fixedly arranged on the clamping sealing blind plate, clamping penetrating grooves which correspond to the directional moving rails and are located between the directional moving rails are formed in the clamping sealing blind plate, and clamping oil cylinders are arranged on the directional moving rails in a sliding mode. A large number of universal valves of different sizes can be detected through the turnover and movable stations, the problem that a testing site is not clean due to pressure relief and splashing of a testing medium for testing pressure relief is solved, the efficiency of pressure relief and testing medium discharging is greatly improved, the problem that the pressure of a high-pressure water pump flushing high-pressure water is overshoot is solved, and the working efficiency is improved. And the problem that the pressurizing efficiency of a booster pump is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of valve testing technology, specifically to a large-diameter CNC valve testing device. Background Technology

[0002] Valve testing platforms are indispensable testing equipment in the valve production process. Most existing valve testing equipment has a simple structure, is cumbersome to use, has a limited scope of application, low cleanliness, and cannot be used as general-purpose equipment. In addition, it has limited functions, complex operation, low clamping accuracy, low level of automation and informatization, low testing efficiency, and unfriendly UI interaction. To address these issues, there is a need for a new type of valve testing product with a high degree of automation, high stability, wide applicability, and suitability for modern industry.

[0003] The main problem this utility model solves is:

[0004] 1. Limited applicability: The horizontal double-worktable clamping installation design allows for multiple clamping methods;

[0005] 2. Low cleanliness: The test uses circulating water and is designed with a drainage device to prevent the test medium from splashing when it is depressurized;

[0006] 3. Low clamping accuracy: Design a synchronous reversing gripping mechanism to improve the synchronicity of the lateral movement of the four-jaw clamping mechanism;

[0007] 4. Low testing efficiency: The design uses a two-stage high-pressure boosting method, which involves filling the water with a high-pressure water pump and boosting the pressure with a high-pressure gas-liquid booster pump. This is especially problematic for testing large-diameter, high-pressure valves.

[0008] 5. Anti-deformation of hydraulic cylinder piston rod: A sleeve-type constraint fixture is designed to reduce the amount of bending deformation of the piston rod when the hydraulic four-jaw gripper clamps a large-tonnage valve.

[0009] 6. Pipeline connection block: The equipment has built-in high-pressure hydraulic rotary joints and pipeline connection blocks, which make the internal pipelines of the equipment orderly and reduce the bending of the oil pipes. Utility Model Content

[0010] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a large-diameter CNC valve testing device, which solves the problems of limited applicability and low clamping accuracy of existing valve testing devices.

[0011] Technical solution

[0012] To solve the above problems, the technical solution provided by this utility model is as follows:

[0013] A large-diameter CNC valve testing device includes a testing platform with a flipping station and a moving station. Both the flipping station and the moving station are equipped with a synchronous clamping mechanism. The synchronous clamping mechanism includes a clamping sealing blind plate. A directional moving track is fixedly mounted on the clamping sealing blind plate, and the clamping sealing blind plate has a clamping through groove corresponding to and located between the directional moving tracks. A clamping cylinder is slidably mounted on the directional moving track, and a special flange is mounted on the clamping cylinder to cooperate with and slide on the directional moving track. Four sets of directional moving tracks and clamping cylinders are provided on both the flipping station and the moving station, and the four sets of directional moving tracks and clamping cylinders are arranged symmetrically with a central inclination.

[0014] It also includes an oil output platform and a control console.

[0015] Furthermore, the flipping station includes a flipping housing, and the testing platform is provided with support plates on both sides of the flipping housing. The support plates are provided with high-pressure rotary joints, and the flipping housing is connected to the high-pressure rotary joints.

[0016] Furthermore, the support plate is provided with a basic support component, the flip shell is provided with a rotating support component, and a rotating hydraulic push rod is connected between the basic support component and the rotating support component.

[0017] Furthermore, the support plate is provided with a high-pressure rotary joint, and the flip-over housing is connected to the high-pressure rotary joint.

[0018] Furthermore, the testing platform is provided with moving tracks on both sides, and the moving station includes a moving housing, with a moving block fixedly provided at the bottom of the moving housing to cooperate with the moving tracks.

[0019] Furthermore, the testing platform is equipped with a movable hydraulic push rod, which is connected to a movable block at the bottom of the movable housing.

[0020] Furthermore, the clamping cylinder is provided with a cylinder piston rod, and the cylinder piston rod is provided with an anti-deformation workpiece. The anti-deformation workpiece consists of a sleeve sleeved on the cylinder piston rod, a support plate tightly attached to the surface of the clamping sealing blind plate, and reinforcing ribs connected to the support plate and the sleeve.

[0021] Furthermore, it also includes a high-pressure two-stage booster device, which comprises a high-pressure water pump, a high-pressure gas-liquid booster pump, a high-pressure check valve, a high-pressure water inlet pipe, a low-pressure water suction pipe, a solenoid valve, a pivot valve, and a water tank.

[0022] Furthermore, the testing station is equipped with a circulating filter water tank and a drainage device. The circulating filter water tank includes a circulating water tank, a filter device, and a screen. The drainage device includes a drainage pump, a pressure buffer device, a high-pressure drainage pipe, a low-pressure drainage pipe, and a reversing valve.

[0023] Furthermore, the testing station includes several pipe connection blocks, which can be one or more types, such as one-in-one-out, one-in-two-out, or one-in-four-out. Beneficial effects

[0024] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0025] The technical solution provided by this utility model improves clamping accuracy and enables the testing of a large number of general-purpose valves of different sizes through a flip-out and movable workstation. It solves the problem of test medium splashing during pressure relief, which leads to an untidy test site, and greatly improves the efficiency of pressure relief and discharge of test medium. The four-jaw clamping synchronization is improved during clamping, making it easier to center the test product. It also solves the problem of overpressure from high-pressure water pumps and the problem of slow pressurization efficiency of booster pumps. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of Embodiment 1 of the present utility model;

[0027] Figure 2 An isometric view of the removal of the clamping sealing blind plate and the moving housing at the moving workstation in Embodiment 1 of this utility model;

[0028] Figure 3 This is a side view of the moving station of Embodiment 1 of the present invention, with the clamping sealing blind plate and the moving housing removed.

[0029] Figure 4 This is a cross-sectional view of the side of the testing table in Embodiment 1 of this utility model;

[0030] Figure 5 The rear view of the moving station of Embodiment 1 of this utility model after removing the clamping sealing blind plate and the moving housing;

[0031] Figure 6 This is a front view of the moving station of Embodiment 1 of this utility model, showing the removal of the clamping sealing blind plate and the moving housing;

[0032] Figure 7 This is a schematic diagram of the anti-deformation workpiece of Embodiment 1 of this utility model. Detailed Implementation

[0033] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] Combined with appendix Figure 1-7 A large-diameter CNC valve testing device is applicable to the testing of valves with a nominal diameter of DN300-900. It includes a testing platform 10, a control console 11, and an oil output platform 12. The testing platform 11 is equipped with components for clamping and fixing the valve and for testing the valve. The oil output platform 12 supplies hydraulic oil, testing medium, and cleaning medium to the components on the testing platform 11. The hydraulic oil transmits power to the components on the testing platform 11 when performing their functions. The testing medium is used when the valve is tested on the testing platform 10. The cleaning medium is used to assist in the recovery of the testing medium. The control console 11 controls the testing method and process, allowing operation of the components on the testing platform 10.

[0036] The testing table 10 is equipped with a tilting station 13 and a moving station 14. Both the tilting station 13 and the moving station 14 can fix the valve. The tilting station 13 can be used alone to test the valve, or it can be used in conjunction with the moving station to test the valve. When the tilting station 13 is used alone to test the valve, it is parallel to the testing table 10. At this time, the tilting station 13 is suitable for testing the sealing and shell of wafer valves such as butterfly valves, knife gate valves, and check valves. When the tilting station 13 is tilted 90 degrees and is perpendicular to the testing table 10, the tilting station 13 and the moving station 14 fix the valve together. At this time, the tilting station 13 and the moving station 14 can be used to test the sealing and shell of flange valves such as ball valves, gate valves, and globe valves. The moving station 14 can move on the testing table 10. By moving the moving station 14 on the testing table 10, the moving station 14 and the tilting station 13 can be used to test valves of different sizes.

[0037] Both the flipping station 13 and the moving station 14 are equipped with a synchronous clamping mechanism 20 for clamping and fixing the valve. The working principle of the synchronous clamping mechanism 20 is similar to that of a gripper. It fixes the valve by combining clamping forces in multiple directions. The flipping station 13 includes a flipping housing 15, and the synchronous clamping mechanism 20 of the flipping station 13 is installed inside the flipping housing 15. The moving station 14 includes a moving housing 16, and the synchronous clamping mechanism of the moving station 14 is installed on the moving housing 16.

[0038] The synchronous clamping mechanism 20 includes a clamping and sealing blind plate 21 as a basic mounting component. The clamping and sealing blind plate 21 is installed on the inner surface of the flipping housing 15 and the moving housing 16. The clamping and sealing blind plate 21 also has the effect of sealing the valve. When the valve located on the flipping station 13 and the moving station 14 is fixed by the synchronous clamping mechanism 20, the clamping and sealing blind plate 21 will seal the port at the end of the valve, thereby facilitating the sealing test.

[0039] A directional moving track 22 is fixedly provided at one end of the clamping sealing blind plate 21 facing the inside of the flip shell 15 or the movable shell 16. The clamping sealing blind plate 21 is provided with a clamping through groove 23 corresponding to the directional moving track 22. The clamping through groove 23 is located inside the directional moving track 22. The clamping sealing blind plate 21 located on the flip shell 15 or the movable shell 16 is provided with four directional moving tracks 22 respectively. The directional moving tracks 22 are arranged symmetrically with a central inclination. All four directional moving tracks 22 are inclined. One end of each of the four directional moving tracks 22 faces the center point of the clamping sealing blind plate 21. The four directional moving tracks 22 are symmetrical to each other, and the components on the four directional moving tracks 22 are completely identical.

[0040] A clamping cylinder 24 is installed on the directional moving track 22. A special flange 25 is installed at one end of the clamping cylinder 24 on the directional moving track 22. The special flange 25 slides within the directional moving track 22. The special flange 25 and the clamping cylinder 24 are fixed as an integral structure. When the special flange 25 moves, the special flange 25 carries the clamping cylinder 24 to move synchronously.

[0041] A drive mounting bracket 26 is provided on the clamping sealing blind plate 21 located inside the flip housing 15 or the movable housing 16. A clamping drive device 27 is installed on the drive mounting bracket 26. A synchronous reversing device 28 is also provided on the drive mounting bracket. The synchronous reversing device 28 is connected to the clamping drive device 27 in a transmission connection.

[0042] The synchronous reversing device 28 is correspondingly set with the directional moving track 22. The synchronous reversing device 28 is connected to a lead screw 29. The lead screw 29 is configured to cooperate with the special flange 25. The rotation of the lead screw 29 drives the special flange 25 to move. The movement direction of the special flange 25 is controlled by controlling the rotation direction of the lead screw 29.

[0043] The clamping drive device 27 is preferably a motor, and the synchronous reversing device 28 is preferably a reversing gear, with a bevel gear or helical gear as the distance. The output end of the motor is also selected as a bevel gear or helical gear. The reversing is achieved through the meshing transmission between the bevel gear or helical gear. All four synchronous reversing devices 28 are connected to the output end of the clamping drive device 27. The clamping drive device 27 drives the four synchronous reversing devices 28 to drive the lead screw 29 to rotate.

[0044] Each directional moving track 22 is also equipped with a tank chain frame 30. The tank chain frame 30 and the directional moving track 22 are arranged parallel to each other to avoid overlap. The tank chain frame 30 is equipped with a tank chain 31. The moving direction of the tank chain 31 is parallel to the moving direction of the clamping cylinder 24. The tank chain 31 is arranged in a double-layered bent configuration. One end of the tank chain 31 is connected to the oil pipe fixing adapter block 32, and the other end of the tank chain 31 is connected to the clamping cylinder 24. When the clamping cylinder 24 moves, the bending position of the tank chain 31 is continuously changed, so that the end of the tank chain 31 moves with the clamping cylinder 24. The tank chain 31 is equipped with a clamping cylinder pipe 38 for supplying hydraulic oil to the clamping cylinder 24. The drive mounting frame 26 is equipped with oil pipe fixing adapter blocks 32 on both sides. One end of the clamping cylinder pipe 38 is internally connected to the oil pipe fixing adapter block 32, and the other end is connected to the clamping cylinder 24.

[0045] The clamping cylinder 24 is equipped with a cylinder piston rod 33, which passes through the clamping through groove 23. The end of the cylinder piston rod 33 is fixed with a claw head 34. The cylinder piston rod 33 and the claw head 34 can engage the flange edge of the detection valve, thereby fixing the valve.

[0046] The clamping cylinder pipe 38 is a double pipe. The end of the clamping cylinder pipe 38 that is connected to the clamping cylinder 24 is connected to different positions inside and outside the clamping cylinder 24 respectively. It is used to provide power transmission for the piston rod 33 of the clamping cylinder 24 to move towards the clamping cylinder 24 and to move away from the clamping cylinder 24.

[0047] An anti-deformation workpiece 60 is provided on the cylinder piston rod 33 extending from the clamping sealing blind plate 21. The anti-deformation workpiece 60 consists of a sleeve sleeved on the cylinder piston rod 33, a support plate tightly attached to the surface of the clamping sealing blind plate 21, and reinforcing ribs connected to the support plate and the sleeve. The reinforcing ribs can transmit the pressure on the sleeve to the support plate, so that the support plate can provide better support for the sleeve, thereby providing better protection for the cylinder piston rod 33 with the anti-deformation workpiece 60.

[0048] The support plate and reinforcing rib of the anti-deformation workpiece 60 are installed in the opposite direction to the direction when the cylinder piston rod 33 clamps the valve. This not only protects the cylinder piston rod 33, but also prevents the anti-deformation workpiece 60 from interfering with the valve.

[0049] Support plates 35 are fixedly installed on the sides of the inspection platform 10 located on both sides of the flipping housing 15. High pressure rotary joints 36 are provided on the support plates 35. The flipping housing 15 is connected to the high pressure rotary joints 36. The high pressure rotary joints 36 are provided with flipping station oil supply pipes 37. One end of the flipping station oil supply pipes 37 is connected to the oil pipe fixing adapter block 32 in the flipping station 13. Hydraulic oil is supplied to the oil pipe fixing adapter block 32 through the flipping station oil supply pipes 37, and then transmitted to the clamping cylinder 24 through the oil pipe fixing adapter block 32, so that the clamping cylinder 24 can control the cylinder piston rod 33 to move toward or away from the clamping cylinder 24.

[0050] A high-pressure rotary joint 36 is designed on the upper part of the flipping station 31. The high-pressure rotary joint 36 moves with the rotation of the flipping housing 15 and fixes the direction of the pipeline, replacing the traditional flexible hose. The rigid pipe connection not only increases the service life of the pipeline inside the equipment, but also prevents the internal pipeline from being dragged.

[0051] A base support 39 is provided on the support plate 35, and a rotating support 40 is provided on the tilting housing 15. A rotating hydraulic push rod 41 is connected between the base support 19 and the rotating support 40. With the base support 19 as the support point, when the rotating hydraulic push rod 41 is extended, it drives the tilting housing 15 to rotate around the high-pressure rotary joint 36. When the rotating hydraulic push rod 41 is fully extended, the tilting housing 15 is parallel to the test bench 10. At this time, the tilting station 13 is suitable for testing the sealing and housing of wafer valves such as butterfly valves, knife gate valves, and check valves. When the rotating hydraulic push rod 41 is fully retracted, the tilting housing 15 is perpendicular to the test bench. At this time, the tilting station 13 and the moving station 14 can cooperate to test the sealing and housing of flange valves such as ball valves, gate valves, and globe valves.

[0052] The testing platform 10 has moving rails 42 on both sides. The bottom of the moving housing 16 has four fixed corners on the lower side of the moving blocks 43. The moving blocks 43 can be equipped with track wheels for sliding in the moving rails 42. The moving blocks 43 can also slide directly in the moving rails 42. The moving blocks 43 are fixedly connected to the moving housing 16. The movement of the moving blocks 43 drives the movement of the moving housing 16. The movement of the moving housing 16 adjusts the matching distance between the moving station 15 and the flipping station 13 perpendicular to the testing platform 10. The testing platform 10 has moving hydraulic push rods 44 located inside the moving rails 42 on both sides. The moving hydraulic push rods 44 are fixedly connected to the moving blocks 43. The inward and outward movement of the moving hydraulic push rods 44 drives the moving blocks 43 to move in the moving rails 42, thereby further driving the moving housing 16 to move.

[0053] The movable housing 16 can be equipped with a hydraulic supply tank chain corresponding to the movable track 42. The hydraulic supply tank chain is used to install the oil supply pipe of the movable station. The end of the oil supply pipe of the movable station is connected to the oil pipe fixing adapter block 32 in the movable station 14. The hydraulic supply tank chain has a double-bent structure. When the movable housing 16 moves, the bending position of the hydraulic supply tank chain changes so that the oil supply pipe of the movable station remains connected to the oil pipe fixing adapter block 32 in the movable station 14, and supplies hydraulic oil to the clamping cylinder 24 in the movable station 14.

[0054] Both the clamping sealing blind plate 21 of the flipping station 13 and the moving station 14 are provided with a detection hole 45 at the center position. The detection hole 45 is used to inject the detection medium into the valve after the valve is fixed on the flipping station 13 and the moving station 14. The detection holes 45 of the flipping station 13 and the moving station 14 are connected to the detection pipe 46. The detection pipe 46 is led out from the flipping housing 15 and the moving housing 16. It can be led out separately or together with the oil supply pipe 37 of the flipping station and the oil supply pipe of the moving station.

[0055] The oil output platform 12 is equipped with a high-pressure two-stage booster device, which includes: a high-pressure water pump, a high-pressure gas-liquid booster pump, a high-pressure check valve, a high-pressure water inlet pipe, a low-pressure water suction pipe, a solenoid valve, a hub valve, a water tank, etc. The above components can be added or removed according to actual usage requirements and pipeline design. The quantity and installation method of a certain component are not limited.

[0056] The high-pressure two-stage booster device not only solves the problem of over-pressure when the high-pressure water pump is used to pressurize the high-pressure water, but also solves the problem of slow pressurization efficiency of the booster pump.

[0057] The water tank inlet is connected to the low-pressure suction pipe, which is connected to a conveying pipe for conveying the test medium. The high-pressure water pump and the high-pressure gas-liquid booster pump are connected to the water tank respectively. The test pipes 46 of the flip station 13 and the moving station 14 are connected to the high-pressure water pump and the high-pressure gas-liquid booster pump for conveying the test medium into the test pipe 46 and for filling and pressurizing the inner cavity of the test valve through the test pipe 46.

[0058] A hub valve is provided on the connection between the high-pressure water pump and the high-pressure gas-liquid booster pump. The hub valve is used to control the reversal of the test medium and the test pressure holding. The test pipes 46 of the flip station 13 and the moving station 14 are split after passing through the hub valve and are respectively connected to the test pipes 46 in the flip station 13 and the moving station 14. A high-pressure check valve is provided on the test pipes 46 after the split. The high-pressure check valve is used to hold the pressure in the inner cavity during pressurization.

[0059] Specific test procedure: At the start of the test, the high-pressure water pump first draws clean test medium from the water tank through the low-pressure suction pipe and flushes it into the inner cavity of the valve to be tested. The high-pressure check valve will maintain pressure in real time. When the design pressure is reached, the high-pressure water pump stops filling water and switches to the high-pressure gas-liquid booster pump to continue increasing the pressure. When the pressure is increased to the test pressure, the hub valve closes and begins to maintain pressure.

[0060] The oil output platform 12 is also equipped with a hydraulic oil output device. The hydraulic oil output device is equipped with a solenoid valve, which is used for boosting and pivot valve driving. The oil supply pipe 37 for the tilting station, the oil supply pipe for the moving station, the tilting hydraulic push rod 41, and the moving hydraulic push rod 44 are respectively equipped with solenoid valves and connected to the hydraulic oil output device.

[0061] The testing station 10 is equipped with a circulating filter water tank and a drainage device. The circulating filter water tank includes a circulating water tank 51, a filter device, and a screen 50. The drainage device includes a drainage pump, a pressure buffer device, a high-pressure drainage pipe, a low-pressure drainage pipe, a reversing valve, etc.

[0062] The circulating water tank and drainage device are combined to form a test pressure relief drainage purification device: The top of the circulating water tank 51 is equipped with a grid 50, which is used to allow liquid leaking from the test platform 10 to sink into the door of the circulating water tank 51. The circulating water tank 51 is equipped with a filter device, which can be installed at the outlet of the circulating water tank 51. The test pipe 46 is also connected to a high-pressure drain pipe and a low-pressure drain pipe respectively. The high-pressure drain pipe is used to discharge the test medium under high pressure in the test valve. After a certain amount of test medium is discharged from the test valve, the pressure of the test medium changes from high to low. At this time, the low-pressure test medium is discharged from the test valve by the low-pressure drain pipe. The low-pressure drain pipe is connected to a drain pump, which discharges the low-pressure test medium in the test valve through the low-pressure drain pipe. The high-pressure drain pipe is connected to a pressure buffer device, which is connected to the circulating water tank 51. The low-pressure drain pipe can be directly connected to the circulating water tank 51. The circulating water tank 51 needs to maintain a certain water level.

[0063] The test pressure relief drainage purification device not only solves the problem of test site mess caused by test medium splashing during pressure relief, but also greatly improves the efficiency of pressure relief and test medium drainage.

[0064] When testing large valves, the drainage and purification device is automatically activated after the test is completed. When the pressure is released, high-pressure water is instantly delivered to the pressure buffer device through the high-pressure drain pipe, and the first wave of high-pressure water is smoothly introduced into the circulating water tank. Then, the drainage pump introduces the test medium in the valve cavity into the circulating water tank 51 through the low-pressure drain pipe. After the test medium in the valve cavity is drained, the drainage device is automatically shut off. The filter device in the circulating water tank 51 first automatically filters and purifies the test medium, and then introduces the preliminarily purified test medium into the water tank to wait for the next round of testing.

[0065] The device is equipped with a reversing valve for internal circulating water replacement. When the reversing valve reverses, the drain pump will directly draw the test medium in the circulating water tank 51, discharge it, and replace the test medium. That is, when the circulating water tank 51 can no longer filter the internal test medium to meet the test standards, the test medium in the circulating water tank 51 can be discharged directly through the reversing valve.

[0066] The hydraulic oil pipes and water pipes outside the equipment are connected to the testing table 10, as well as the flipping station 13 and moving station 14 of the testing table 10, through the designed pipe connection blocks. The connection blocks are designed with different passages according to different pipes: one inlet and one outlet, one inlet and two outlets, one inlet and four outlets, etc. The pipes entering the equipment are arranged in an orderly manner through these pipe connection blocks.

[0067] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A testing device for large-diameter CNC valves, characterized in that, The device includes a testing platform with a flipping station and a moving station. Both the flipping station and the moving station are equipped with a synchronous clamping mechanism. The synchronous clamping mechanism includes a clamping sealing blind plate. A directional moving track is fixedly mounted on the clamping sealing blind plate, and the clamping sealing blind plate has a clamping through groove corresponding to and located between the directional moving tracks. A clamping cylinder is slidably mounted on the directional moving track, and a special flange is mounted on the clamping cylinder to cooperate with and slide on the directional moving track. There are four sets of directional moving tracks and clamping cylinders on both the flipping station and the moving station, and the four sets of directional moving tracks and clamping cylinders are arranged symmetrically with a central inclination. It also includes an oil output platform and a control console.

2. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, The flipping station includes a flipping housing, and the testing platform is provided with support plates on both sides of the flipping housing. High-pressure rotary joints are provided on the support plates, and the flipping housing is connected to the high-pressure rotary joints.

3. The large-diameter CNC valve testing equipment according to claim 2, characterized in that, The support plate is provided with a basic support component, and the flip shell is provided with a rotating support component. A rotating hydraulic push rod is connected between the basic support component and the rotating support component.

4. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, The testing platform is provided with moving tracks on both sides, and the moving station includes a moving housing, with a moving block fixedly provided at the bottom of the moving housing to cooperate with the moving tracks.

5. The large-diameter CNC valve testing equipment according to claim 2, characterized in that, The testing platform is equipped with a movable hydraulic push rod, which is connected to a movable block at the bottom of the movable housing.

6. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, The clamping cylinder is equipped with a piston rod, and the piston rod is provided with an anti-deformation workpiece. The anti-deformation workpiece consists of a sleeve fitted on the piston rod, a support plate tightly attached to the surface of the clamping sealing blind plate, and reinforcing ribs connected to the support plate and the sleeve.

7. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, It also includes a high-pressure two-stage booster device, which comprises a high-pressure water pump, a high-pressure gas-liquid booster pump, a high-pressure check valve, a high-pressure water inlet pipe, a low-pressure water suction pipe, a solenoid valve, a pivot valve, and a water tank.

8. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, The testing station is equipped with a circulating filter water tank and a drainage device. The circulating filter water tank includes a circulating water tank, a filter device, and a screen. The drainage device includes a drainage pump, a pressure buffer device, a high-pressure drainage pipe, a low-pressure drainage pipe, and a reversing valve.

9. The large-diameter CNC valve testing equipment according to claim 1, characterized in that, The testing station contains several pipeline connection blocks, which can be one or more types of pipe connection blocks, such as one inlet and one outlet, one inlet and two outlets, or one inlet and four outlets.

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