Large-diameter numerical control valve testing equipment

Abstract

The invention discloses a large-diameter numerical control valve test device, and relates to the technical field of valve detection, the large-diameter numerical control valve test device comprises a detection table, the detection table is provided with an overturning station and a moving station, the overturning station and the moving station are both provided with a synchronous grasping mechanism, and the synchronous grasping mechanism comprises a clamping sealing blind plate. 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] The invention relates to the technical field of valve detection, and in particular to a large-caliber numerical control valve testing device. Background Art

[0002] The valve testing platform is an indispensable testing equipment in the valve production process. Most of the existing valve testing equipment has a single structure, cumbersome use, a small scope of application, low cleanliness, and cannot be a general equipment. It also has a single function, complex operation, low clamping accuracy, low automation and informationization, low testing efficiency, and unfriendly UI interaction. To address this series of problems, a new valve testing product with high automation, high stability, wide application range and suitable for modern industry is needed.

[0003] The present invention mainly solves the following problems:

[0004] 1. Small scope of application: Design the horizontal double workbench clamping installation method to achieve a variety of clamping methods;

[0005] 2. Low cleanliness: Use circulating water testing and design drainage devices to prevent the test medium from being depressurized and splashed;

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

[0007] 4. Low test efficiency: Design a high-pressure two-stage boosting method, that is, a high-pressure water pump filling with water + a high-pressure gas-liquid booster pump boosting method, especially for the testing of large-diameter and high-pressure valves.

[0008] 5. Anti-deformation of the cylinder piston rod: Design a sleeve-type constraint tooling to reduce the bending deformation of the piston rod when the hydraulic four-claw grips 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 arranged in an orderly manner and reduce the bending of the oil pipes. Summary of the invention

[0010] Purpose of the invention: The technical problem to be solved by the present invention is to provide a large-caliber CNC valve testing device, which solves the problem that the existing valve detection equipment has a small application range and low clamping accuracy.

[0011] Technical Solution

[0012] To solve the above problems, the technical solution provided by the present invention is:

[0013] A large-caliber CNC valve testing equipment, including a testing table, the testing table is provided with a flipping station and a moving station, the flipping station and the moving station are both provided with a synchronous clamping mechanism, the synchronous clamping mechanism includes a clamping sealing blind plate, a directional movable track is fixedly provided on the clamping sealing blind plate, and a clamping through groove corresponding to the directional movable track and located between the directional movable track is provided on the clamping sealing blind plate, a clamping cylinder is slidably provided on the directional movable track, and the clamping cylinder is provided with a special flange that slides in cooperation with the directional movable track, the directional movable track and the clamping cylinder are each provided with four groups on the flipping work and moving stations, and the four groups of the directional movable track and the clamping cylinder are centrally inclined and symmetrically arranged; it also includes an oil output table and a control console, a circulating filtration water tank and a drainage device are provided in the testing table, and it also includes a high-pressure secondary booster device.

[0014] Furthermore, the flipping station includes a flipping shell, and support plates are provided on both sides of the flipping shell on the testing platform, and high-voltage rotary joints are provided on the support plates, and the flipping shell is connected to the high-voltage rotary joints.

[0015] Furthermore, a basic support member is provided on the support plate, a rotating support member is provided on the flip shell, and a rotating hydraulic push rod is connected between the basic support member and the rotating support member.

[0016] Furthermore, a high-voltage rotary joint is provided on the support plate, and the flip shell is connected to the high-voltage rotary joint.

[0017] Furthermore, movable tracks are provided on both sides of the detection platform, and the movable station includes a movable shell, and a movable block matched with the movable track is fixedly provided at the bottom of the movable shell.

[0018] Furthermore, a movable hydraulic push rod is provided on the detection platform, and the movable hydraulic push rod is connected to a movable block at the bottom of the movable shell.

[0019] Furthermore, a cylinder piston rod is provided in the clamping cylinder, and an anti-deformation workpiece is provided on the cylinder piston rod. 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.

[0020] Furthermore, the high-pressure two-stage boosting device includes a high-pressure water pump, a high-pressure gas-liquid boosting pump, a high-pressure one-way valve, a high-pressure water inlet pipe, a low-pressure water suction pipe, a solenoid valve, a hub valve, and a water tank.

[0021] Furthermore, the circulating filtration water tank includes a circulating water tank, a filtering device, and a grille, and 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.

[0022] Furthermore, the testing platform comprises a plurality of pipeline connection blocks, and the pipeline connection blocks are any one or more of a one-inlet-one-outlet type, a one-inlet-two-outlet type, and a one-inlet-four-outlet type.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] The technical solution provided by the present invention improves the clamping accuracy, and can detect a large number of universal valves of different sizes through the flippable and movable workstations, solves the problem of pressure relief test and splashing of test media causing untidy test site, and greatly improves the efficiency of pressure relief and discharge of test media. The four-jaw clamping synchronization is improved during clamping, and the test product is easier to center, which solves the problem of high-pressure water pump pressure overshoot, and also solves the problem of slow pressurization efficiency of the booster pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of embodiment 1 of the present invention;

[0026] Figure 2 The isometric view of the mobile station of Example 1 of the present invention after removing the clamping sealing blind plate and the mobile housing;

[0027] Figure 3 It is a side view of the mobile station of Example 1 of the present invention after removing the clamping sealing blind plate and the mobile housing;

[0028] Figure 4 is a cross-sectional view of the side of the detection platform of Example 1 of the present invention;

[0029] Figure 5 This is a rear view of the mobile station of Example 1 of the present invention after removing the clamping sealing blind plate and the mobile housing;

[0030] Figure 6 It is a front view of the mobile station of Example 1 of the present invention, in which the clamping sealing blind plate and the mobile housing are removed;

[0031] Figure 7 Schematic diagram of the anti-deformation workpiece of Example 1 of the present invention. DETAILED DESCRIPTION

[0032] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Example 1

[0034] Combined with Figure 1-7A large-caliber CNC valve testing equipment is suitable for testing valves with a nominal diameter of DN300-900, including a testing platform 10, a control console 11, and an oil output platform 12. The testing platform 11 is provided with related components for clamping and fixing the valve and testing the valve. The oil output platform 12 is used to supply hydraulic oil, testing medium and cleaning medium to the components on the testing platform 11. The hydraulic oil is used to transmit power to the components on the testing platform 11 when performing functional work. The testing medium is used when the valve is tested on the testing platform 10. The cleaning medium is used to assist in recovering the testing medium. The control console 11 is used to control the testing method and the testing process, and can control the components on the testing platform 10 by operating on the control console 11.

[0035] A flipping station 13 and a moving station 14 are provided on the testing table 10, and both the flipping station 13 and the moving station 14 can fix valves. The flipping station 13 can be used alone for valve testing, and can also be used in conjunction with the moving station for valve testing. When the flipping station 13 performs valve testing alone, the flipping station 13 is parallel to the testing table 10. At this time, the flipping station 13 is suitable for testing the seals and shells of clamp-type valves such as butterfly valves, knife gate valves, and check valves. When the flipping station 13 flips ninety degrees and is perpendicular to the testing table 10, the flipping station 13 and the moving station 14 fix the valve together. At this time, the flipping station 13 cooperates with the moving station 14 to test the seals and shells of flange valves such as ball valves, stop valves, and gate valves. The moving station 14 can move on the testing table 10, and the moving station 14 moves on the testing table 10, so that the moving station 14 cooperates with the flipping station 13 to detect valves of different sizes.

[0036] Both the flipping station 13 and the moving station 14 are provided with a synchronous clamping mechanism 20 for clamping the valve to fix the valve. The working principle of the synchronous clamping mechanism 20 is similar to that of a clamping claw, and the valve is fixed by a combination of clamping forces in multiple directions. The flipping station 13 includes a flipping shell 15, and the synchronous clamping mechanism 20 of the flipping station 13 is installed in the flipping shell 15. The moving station 14 includes a moving shell 16, and the synchronous clamping mechanism of the moving station 14 is installed on the moving shell 16.

[0037] The synchronous clamping mechanism 20 includes a clamping sealing blind plate 21 as a basic mounting part. The clamping sealing blind plate 21 is installed on the inner surface of the flip shell 15 and the movable shell 16. The clamping sealing blind plate 21 also has the effect of sealing the valve. When the valves located on the flip station 13 and the movable station 14 are fixed by the synchronous clamping mechanism 20, the clamping sealing blind plate 21 will seal the port at the end of the valve, thereby facilitating sealing detection.

[0038] A directional movable 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, and a clamping through groove 23 corresponding to the directional movable track 22 is provided on the clamping sealing blind plate 21, and the clamping through groove 23 is located inside the directional movable track 22. Four directional movable tracks 22 are respectively provided on the clamping sealing blind plate 21 located on the flip shell 15 or the movable shell 16, and the directional movable tracks 22 are symmetrically arranged with a center, and the four directional movable tracks 22 are all inclined, and one end of the four directional movable tracks 22 faces the center point of the clamping sealing blind plate 21, the four directional movable tracks 22 are symmetrical to each other, and the components on the four directional movable tracks 22 are completely consistent.

[0039] A clamping cylinder 24 is provided on the directional moving track 22. A special flange 25 is provided on the clamping cylinder 24 at one end of the directional moving track 22. The special flange 25 slides in 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.

[0040] A drive mounting frame 26 is provided on the clamping sealing blind plate 21 located inside the flip shell 15 or the moving shell 16 . A clamping drive device 27 is installed on the drive mounting frame 26 . A synchronous reversing device 28 is also provided on the drive mounting frame. The synchronous reversing device 28 is transmission-connected to the clamping drive device 27 .

[0041] The synchronous reversing device 28 is arranged corresponding to the directional moving track 22. The synchronous reversing device 28 is connected with a screw rod 29. The screw rod 29 is arranged in cooperation with the special flange 25. The screw rod 29 rotates to drive the special flange 25 to move. The moving direction of the special flange 25 is controlled by controlling the rotation direction of the screw rod 29.

[0042] The clamping drive device 27 is preferably a motor, and the synchronous reversing device 28 is preferably a reversing gear, the distance is a bevel gear or a helical gear, and the motor output end also selects a bevel gear or a helical gear. Reversal is achieved by the meshing transmission between the bevel gears or the helical gears. The four synchronous reversing devices 28 are all connected to the output end of the clamping drive device 27, and the four synchronous reversing devices 28 are driven by the clamping drive device 27 to drive, thereby driving the screw 29 to rotate.

[0043] Each directional movable track 22 is also provided with a tank chain frame 30, which avoids overlapping with the directional movable track 22 and is arranged in parallel. A tank chain 31 is arranged in the tank chain frame 30, and the moving direction of the tank chain 31 is parallel to the moving direction of the clamping cylinder 24. The tank chain 31 is a bent double-layer arrangement, one end of the tank chain 31 is connected to the oil pipe fixed 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 end of the tank chain 31 follows the movement of the clamping cylinder 24 by continuously changing the bending position of the tank chain 31. The tank chain 31 is provided with a clamping cylinder pipeline 38 for supplying hydraulic oil to the clamping cylinder 24. Oil pipe fixed adapter blocks 32 are provided on both sides of the driving mounting frame 26. One end of the clamping cylinder pipeline 38 is connected to the oil pipe fixed adapter block 32, and the other end is connected to the clamping cylinder 24.

[0044] A cylinder piston rod 33 is provided in the clamping cylinder 24. The cylinder piston rod 33 passes through the clamping through groove 23. A claw head 34 is fixedly provided at the end of the cylinder piston rod 33. The cylinder piston rod 333 cooperates with the claw head 34 to engage the flange edge of the detection valve, thereby fixing the valve.

[0045] The clamping cylinder pipeline 38 is a double-tube pipeline. One end of the clamping cylinder pipeline 38 connected to the clamping cylinder 24 is respectively connected to different positions inside and outside the clamping cylinder 24, and is used to provide power transmission for the cylinder piston rod 33 of the clamping cylinder 24 to move toward the clamping cylinder 24 and move away from the clamping cylinder 24.

[0046] An anti-deformation workpiece 60 is provided on the cylinder piston rod 33 extending out of the clamping sealing blind plate 21. The anti-deformation workpiece 60 is composed 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 exerted on the sleeve to the support plate, so that the support plate can better support the sleeve, thereby enabling the anti-deformation workpiece 60 to better protect the cylinder piston rod 33.

[0047] The installation direction of the support plate and the reinforcing ribs of the anti-deformation workpiece 60 is opposite to the direction when the cylinder piston rod 33 clamps the valve, which can not only protect the cylinder piston rod 33, but also prevent the anti-deformation workpiece 60 from interfering with the valve.

[0048] A support plate 35 is fixedly provided on the side of the inspection table 10 located on both sides of the flip shell 15, and a high-pressure rotary joint 36 is provided on the support plate 35. The flip shell 15 is connected to the high-pressure rotary joint 36. A flip station oil supply pipe 37 is provided in the high-pressure rotary joint 36. One end of the flip station oil supply pipe 37 is connected to the oil pipe fixed adapter block 32 in the flip station 13. The hydraulic oil is supplied to the oil pipe fixed adapter block 32 through the flip station oil supply pipe 37, and then transmitted to the clamping cylinder 24 through the oil pipe fixed adapter block 32, so that the clamping cylinder 24 can control the cylinder piston rod 33 to move in the direction toward or away from the clamping cylinder 24.

[0049] A high-pressure rotary joint 36 is designed on the upper part of the flipping station 31. The high-pressure rotary joint 36 rotates with the flipping shell 15, and the direction of the pipeline is fixed by the high-pressure rotary joint 36, replacing the traditional hose form. The connection of the hard pipe not only increases the service life of the pipeline in the equipment, but also prevents the internal pipeline from dragging.

[0050] A basic support member 39 is provided on the support plate 35, and a rotating support member 40 is provided on the flip shell 15. A rotating hydraulic push rod 41 is connected between the basic support member 19 and the rotating support member 40. By taking the basic support member 19 as the supporting point, when the rotating hydraulic push rod 41 is extended, the rotating hydraulic push rod 41 drives the flip shell 15 to rotate around the high-pressure rotating street 36. When the rotating hydraulic push rod 41 is fully extended, the flip shell 15 is parallel to the inspection table 10. At this time, the flip station 13 is suitable for testing the seals and shells of clamp-type valves such as butterfly valves, knife gate valves, and check valves; when the rotating hydraulic push rod 41 is fully retracted, the flip shell 15 is perpendicular to the inspection table. At this time, the flip station 13 cooperates with the moving station 14 to test the seals and shells of flange valves such as ball valves, stop valves, and gate valves.

[0051] Movable rails 42 are provided on both sides of the testing platform 10, and movable blocks 43 are fixedly provided on the four fixed-angle lower sides of the bottom of the movable shell 16. Track wheels can be provided on the movable blocks 43 for sliding in the movable rails 42, or the movable blocks 43 can slide directly in the movable rails 42. The movable blocks 43 are fixedly connected to the movable shell 16, and the movable shell 16 is moved by the movement of the movable blocks 43. The matching distance between the movable station 15 and the flipping station 13 perpendicular to the testing platform 10 is adjusted by the movement of the movable shell 16. The testing platform 10 is located on the inner side of the movable rails 42 on both sides and is provided with movable hydraulic push rods 44. The movable hydraulic push rods 44 are fixedly connected to the movable blocks 43, and the movable block 43 is moved in the movable rails 42 by the retraction and extension of the movable hydraulic push rods 44, thereby further driving the movable shell 16 to move.

[0052] A liquid supply tank chain corresponding to the mobile track 42 can be set in the mobile shell 16, and the liquid supply tank chain is used to install the mobile station oil supply pipe. The end of the mobile station oil supply pipe is connected to the oil pipe fixed adapter block 32 in the mobile station 14. The liquid supply tank chain has a double-layer bending structure. When the mobile shell 16 moves, the bending position of the liquid supply tank chain is changed so that the mobile station oil supply pipe remains connected to the oil pipe fixed adapter block 32 in the mobile station 14, thereby supplying hydraulic oil for the movement of the clamping cylinder 24 in the mobile station 14.

[0053] A detection hole 45 is provided at the center position of the clamping sealing blind plate 21 of the flipping station 13 and the moving station 14. The detection hole 45 is used to inject a 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 a detection pipe 46. The detection pipe 46 is led out from the flip shell 15 and the moving shell 16. It can be led out separately or together with the flipping station oil supply pipe 37 and the moving station oil supply pipe.

[0054] The oil output station 12 is provided with a high-pressure two-stage booster device, including: 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 increased or decreased accordingly according to actual use requirements and pipeline design, and the number and installation method of a certain component are also not limited;

[0055] The high-pressure two-stage booster device not only solves the problem of high-pressure water pump overpressure, but also solves the problem of slow charging efficiency of the booster pump.

[0056] The input end of the water tank is connected to the low-pressure water suction pipe, and the low-pressure water suction pipe is externally connected to a delivery pipeline for conveying the detection medium. The high-pressure water pump and the high-pressure gas-liquid booster pump are respectively connected to the water tank. The detection pipelines 46 of the flipping station 13 and the moving station 14 are connected to the high-pressure water pump and the high-pressure gas-liquid booster pump, which are used to convey the detection medium into the detection pipeline 46, and fill water and pressurize the inner cavity of the detection valve through the detection pipeline 46.

[0057] 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 reversing of the test medium and the test pressure maintenance. The detection pipelines 46 of the flipping station 13 and the moving station 14 are split after passing through the hub valve and are respectively connected to the detection pipelines 46 in the flipping station 13 and the moving station 14. A high-pressure one-way valve is provided on the split detection pipeline 46, which is used to maintain the pressure in the inner cavity during pressurization.

[0058] Specific test process: At the beginning of the test, the high-pressure water pump first draws clean test medium from the water tank through the low-pressure suction pipe and rushes it into the inner cavity of the valve to be tested. The high-pressure one-way valve will maintain the 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 to increase the pressure. When the pressure is increased to the test pressure, the hub valve is closed and the pressure is maintained.

[0059] The oil output platform 12 is also provided with a hydraulic oil output device, which is provided with a solenoid valve, which is used for boost drive and hub valve drive. The flipping station oil supply pipe 37, the moving station oil supply pipe, the flipping hydraulic push rod 41, and the moving hydraulic push rod 44 are respectively provided with solenoid valves and are connected to the hydraulic oil output device.

[0060] A circulating filtration water tank and a drainage device are provided in the testing platform 10. The circulating filtration water tank includes a circulating water tank 51, a filtering device, and a grille 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.

[0061] The circulating filter water tank and the drainage device are combined into a test pressure relief drainage purification device: a grille 50 is provided on the top of the circulating water tank 51, and the grille 50 is used to sink the liquid leaked from the detection table 10 into the door of the circulating water tank 51. A filtering device is provided in the circulating water tank 51, and the filtering device can be installed at the water outlet position of the circulating water tank 51. The detection pipeline 46 is also connected to a high-pressure drainage pipe and a low-pressure drainage pipe respectively. The high-pressure drainage pipe is used to discharge the detection medium under higher pressure in the detection valve. After the detection medium of the detection valve is discharged to a certain extent, the pressure of the detection medium changes from high to low. At this time, the low-pressure detection medium is discharged from the detection valve by the low-pressure drainage pipe. The low-pressure drainage pipe is connected to a drainage pump, and the drainage pump discharges the low-pressure detection medium in the detection valve through the low-pressure drainage pipe. The high-pressure drainage pipe is connected to the pressure buffer device, and the pressure buffer device is connected to the circulating water tank 51. The low-pressure drainage pipe can be directly connected to the circulating water tank 51. A certain height of water needs to be maintained in the circulating water tank 51.

[0062] The test pressure relief and drainage purification device not only solves the problem of the test medium splashing during the test pressure relief, which causes the test site to be untidy, but also greatly improves the efficiency of pressure relief and drainage of the test medium.

[0063] When testing a large valve, the drainage purification device is automatically started after the test is completed. When the pressure is released, the high-pressure water is instantly transported to the pressure buffer device through the high-pressure drainage 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 drainage pipe, and the drainage device is automatically closed after the test medium in the valve cavity is drained. 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, waiting for the next round of testing.

[0064] A reversing valve is provided in the device for replacing the internal circulating water. When the reversing valve is reversed, the drainage pump will directly extract the test medium in the circulating water tank 51, and replace the test medium after discharging. That is, when the circulating water tank 51 can no longer filter the internal test medium to meet the test standard, the test medium in the circulating water tank 51 can be directly discharged through the reversing valve.

[0065] The hydraulic oil pipes and water pipes outside the equipment are connected to the test bench 10 and the turning station 13 and the moving station 14 of the test bench 10 through the designed pipeline connection blocks. The connection blocks are designed with different passages according to different pipelines: one-in-one-out type, one-in-two-out type, one-in-four-out type, etc. Through these pipeline connection blocks, the pipelines entering the equipment are arranged in order.

[0066] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A large-caliber CNC valve testing equipment, characterized in that: It includes an inspection table, which is provided with a flipping station and a moving station, and the flipping station and the moving station are both provided with a synchronous clamping mechanism, and the synchronous clamping mechanism includes a clamping sealing blind plate, a directional moving track is fixedly provided on the clamping sealing blind plate, and a clamping through groove corresponding to the directional moving track and located between the directional moving track is provided on the clamping sealing blind plate, a clamping cylinder is slidably provided on the directional moving track, and the clamping cylinder is provided with a special flange that slides in cooperation with the directional moving track, and four groups of the directional moving track and the clamping cylinder are provided on the flipping work and moving stations, and the four groups of the directional moving track and the clamping cylinder are centrally inclined and symmetrically arranged; it also includes an oil output table and a control console, and a circulating filtering water tank and a drainage device are provided in the inspection table, and it also includes a high-pressure secondary booster device.

2. A large-caliber CNC valve testing device according to claim 1, characterized in that: The flipping station comprises a flipping shell, and support plates are arranged on both sides of the flipping shell on the testing platform, high-voltage rotary joints are arranged on the support plates, and the flipping shell is connected to the high-voltage rotary joints.

3. A large-caliber CNC valve testing device according to claim 2, characterized in that: A basic support member is disposed on the support plate, a rotating support member is disposed on the flip shell, and a rotating hydraulic push rod is connected between the basic support member and the rotating support member.

4. A large-caliber CNC valve testing device according to claim 2, characterized in that: The support plate is provided with a high-voltage rotary joint, and the flip shell is connected to the high-voltage rotary joint.

5. The large-caliber CNC valve testing equipment according to claim 1, characterized in that: The detection platform is provided with movable tracks on both sides, and the movable station comprises a movable shell, and a movable block matched with the movable track is fixedly provided at the bottom of the movable shell.

6. A large-caliber CNC valve testing device according to claim 4, characterized in that: The detection platform is provided with a movable hydraulic push rod, and the movable hydraulic push rod is connected to the movable block at the bottom of the movable housing.

7. The large-caliber CNC valve testing equipment according to claim 1, characterized in that: A cylinder piston rod is provided in the clamping cylinder, and an anti-deformation workpiece is provided on the cylinder piston rod. 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.

8. The large-caliber CNC valve testing equipment according to claim 1, characterized in that: The high-pressure two-stage boosting device comprises a high-pressure water pump, a high-pressure gas-liquid boosting pump, a high-pressure one-way valve, a high-pressure water inlet pipe, a low-pressure water suction pipe, a solenoid valve, a hub valve, and a water tank.

9. The large-caliber CNC valve testing equipment according to claim 1, characterized in that: The circulating filtration water tank comprises a circulating water tank, a filtering device, and a grille, and the drainage device comprises: a drainage pump, a pressure buffer device, a high-pressure drainage pipe, a low-pressure drainage pipe, and a reversing valve.

10. The large-caliber CNC valve testing equipment according to claim 1, characterized in that: The testing platform comprises a plurality of pipeline connection blocks, and the pipeline connection blocks are any one or more of a one-inlet-one-outlet type, a one-inlet-two-outlet type, and a one-inlet-four-outlet type.

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