Automatic self-locking pilot valve test fixture system

Abstract

The invention relates to the technical field of self-locking pilot valves, in particular to an automatic self-locking pilot valve test clamp system which comprises a clamp bottom plate, a limiting mechanism and a clamping mechanism, the clamp bottom plate is fixedly provided with a limiting block and a limiting mechanism on the surface of the front end of the center of the top of the clamp bottom plate, and the limiting block and the limiting mechanism are fixedly arranged on the surface of the front end of the center of the top of the clamp bottom plate. A limiting mechanism is installed on the surface of the top of the clamp bottom plate, the limiting mechanism can limit and fix an electromagnetic pilot valve needing to be tested, and therefore the accuracy and stability of follow-up clamping work are guaranteed, and the clamping mechanism is installed on the surface of the top of the clamp bottom plate. The clamping mechanism can clamp and limit the electromagnetic pilot valve needing to be tested, and can perform automatic compensation clamping according to the appearance shape of the electromagnetic pilot valve, so that the stability and reliability of limiting clamping are ensured. Through cooperation of the limiting mechanism and the clamping mechanism, rapid clamping can be achieved, and manual operation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of self-locking pilot valves, in particular to an automatic self-locking pilot valve test fixture system. Background Art

[0002] The solenoid pilot valve is an industrial control component widely used in the hydraulic field. It is an auxiliary valve used to manipulate the control mechanism in other valves or components. Testing of the solenoid pilot valve is a key step to ensure its performance and quality. It aims to verify whether its performance meets the design requirements, including sealing, motion performance, flow characteristics, etc., to ensure that it can work stably and reliably in practical applications. In the past, the test clamping used the four hexagon socket screws on the pilot valve to fix and lock it. It was necessary to repeatedly tighten the hexagon socket screws, which was inconvenient and time-consuming to operate. Uneven torque control could easily cause leakage. Another method is the frame-type screw top tightening method, which also requires locking screws. Due to the frame-type semi-enclosed structure, the pilot valve needs to slide sideways to the test station, which is inconvenient to operate and the sealing ring is easy to slip and leak. Due to large-scale testing, it is difficult to adjust problems. Instability seriously affects the performance, quality, reliability and efficiency of the test.

[0003] Therefore, we propose an automatic self-locking pilot valve test fixture system. Summary of the invention

[0004] The object of the present invention is to provide an automatic self-locking pilot valve test fixture system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic self-locking pilot valve test fixture system, comprising a fixture bottom plate, a limiting mechanism and a clamping mechanism; A fixture bottom plate, wherein a limit block is fixedly installed on the front end surface at the top center of the fixture bottom plate; A limiting mechanism is installed on the top surface of the clamp bottom plate, and the limiting mechanism includes a first cylinder. The first cylinder is installed on the top surface of the clamp bottom plate; A clamping mechanism is installed on the top surface of the bottom plate of the clamp base plate, and the clamping mechanism includes a movable groove. The top surface of the clamp base plate is symmetrically and equidistantly provided with movable grooves, and a tooth plate is slidably connected inside the movable groove. Tooth grooves are opened on the surfaces of the two tooth plates where they are close to each other, and a gear is installed between the surfaces of the two tooth plates at the tooth grooves, and the gear is meshed with the tooth plate through the tooth groove cooperation.

[0006] Preferably, fixed slide rails are symmetrically provided on the top surface of the clamp bottom plate, and sliding blocks are slidably installed inside the fixed slide rails.

[0007] Preferably, a first cylinder rod is mounted on the output end surface of the first cylinder, and a self-locking clamping block is mounted on the other end surface of the first cylinder rod. When the first cylinder is started, the operation of the first cylinder drives the first cylinder rod to move forward, and the forward movement of the first cylinder rod drives the self-locking clamping block to move forward together to squeeze the electromagnetic pilot valve, and the self-locking clamping block cooperates with the limit block to perform limit clamping.

[0008] Preferably, the clamping mechanism further comprises a support plate, a support plate is rotatably mounted on the top surface of the gear, a connecting plate is rotatably mounted on the outer surface of the other end of the support plate, and the two ends of the connecting plate are internally rotatably connected to the two support plates respectively, a rotating rod is rotatably mounted internally at the center of the connecting plate, a guide rail is mounted on the top surface of the fixture bottom plate located at the rotating rod, and the rotating rod slides inside the guide rail. The movement of the second cylinder rod drives the connecting plate and the support plate to move, and the connecting plate moves directionally inside the guide rail in cooperation with the sleeve and the rotating rod, and the support plate drives the tooth plate forward through the force of the connecting plate moving forward, and the tooth plate moves forward through the cooperation of the tooth groove and the gear to drive the lock plate to approach the electromagnetic pilot valve, and the lock plate drives the gasket to move together during the movement of the lock plate, and the electromagnetic pilot valve is clamped by the cooperation of the gasket to achieve rapid clamping.

[0009] Preferably, a sleeve is rotatably mounted on the outer surface of the rotating rod, a second cylinder is mounted on the top surface of the clamp bottom plate, a second cylinder rod is mounted on the output end surface of the second cylinder, and the second cylinder rod is fixedly connected to the sleeve. When the second cylinder is started, the operation of the second cylinder drives the second cylinder rod to approach the electromagnetic pilot valve.

[0010] Preferably, a locking plate is fixedly connected to the front end surface of the tooth plate, a gasket is installed on the front end surface of the locking plate, and the gasket is made of rubber material.

[0011] Preferably, the fixture bottom plate is provided with fixing holes at equal intervals in sequence. The fixture bottom plate is mounted on the hydraulic valve test bench through the circumferential fixing holes, and then the electromagnetic pilot valve is placed on the fixture bottom plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the electromagnetic pilot valve to be tested can be limited and fixed by the cooperation of the fixed slide rail, the slide block, the first cylinder, the first cylinder rod and the self-locking clamping block, thereby ensuring the accuracy and stability of the subsequent clamping work; the electromagnetic pilot valve to be tested can be clamped and limited by the cooperation of the moving groove, the tooth plate, the tooth groove, the locking plate, the gear, the support plate, the connecting plate, the guide rail, the rotating rod, the sleeve, the second cylinder and the second cylinder rod, and can automatically compensate for the difference and clamp according to the appearance shape of the electromagnetic pilot valve, thereby ensuring the stability and reliability of the limited clamping, realizing rapid clamping, reducing manual operation, and can be quickly disengaged after the test is completed. The open structure pilot valve is extremely convenient to place at the test station, is not affected by interference from surrounding devices, and the seal will not fall off to cause leakage risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is one of the partial structural schematic diagrams of the present invention; Figure 3 This is the second partial structural schematic diagram of the present invention.

[0014] In the figure: 1. fixture base plate; 2. limit block; 3. fixed slide rail; 4. slide block; 5. first cylinder; 6. first cylinder rod; 7. self-locking clamping block; 8. moving groove; 9. tooth plate; 10. tooth groove; 11. locking plate; 12. gear; 13. support plate; 14. connecting plate; 15. guide rail; 16. rotating rod; 17. sleeve; 18. second cylinder; 19. second cylinder rod; 20. fixing hole; 21. gasket. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-3 , an automatic self-locking pilot valve test fixture system, comprising a fixture base plate 1, a limiting mechanism and a clamping mechanism; A fixture bottom plate 1, wherein a limit block 2 is fixedly installed on the front end surface at the top center of the fixture bottom plate 1; A limiting mechanism is installed on the top surface of the clamp bottom plate 1, and the limiting mechanism includes a first cylinder 5. The first cylinder 5 is installed on the top surface of the clamp bottom plate 1; A clamping mechanism is installed on the top surface of the bottom plate of the clamp base plate 1, and the clamping mechanism includes a movable groove 8. The top surface of the clamp base plate 1 is symmetrically and equidistantly provided with movable grooves 8, and a tooth plate 9 is slidably connected inside the movable groove 8. A tooth groove 10 is opened on the surface of two tooth plates 9 close to each other, and a gear 12 is installed between the surfaces of the two tooth plates 9 located at the tooth groove 10, and the gear 12 is meshed and connected with the tooth plate 9 through the tooth groove 10.

[0017] See also Figure 1-3 The top surface of the fixture bottom plate 1 is symmetrically provided with fixed slide rails 3, and a slide block 4 is slidably installed inside the fixed slide rails 3.

[0018] See also Figure 1-3The first cylinder 5 is provided with a first cylinder rod 6 on the output end surface, and a self-locking clamping block 7 is provided on the other end surface of the first cylinder rod 6. When the first cylinder 5 is started, the first cylinder 5 drives the first cylinder rod 6 to move forward, and the first cylinder rod 6 moves forward and drives the self-locking clamping block 7 to move forward together to squeeze the electromagnetic pilot valve, and the self-locking clamping block 7 cooperates with the limit block 2 to perform limit clamping.

[0019] See also Figure 1-3 The clamping mechanism also includes a support plate 13, a support plate 13 is rotatably mounted on the top surface of the gear 12, a connecting plate 14 is rotatably mounted on the outer surface of the other end of the support plate 13, and the two ends of the connecting plate 14 are rotatably connected to the two support plates 13 respectively, and a rotating rod 16 is rotatably mounted inside the center of the connecting plate 14, and a guide rail 15 is installed on the top surface of the fixture bottom plate 1 at the rotating rod 16, and the rotating rod 16 slides inside the guide rail 15. The movement of the second cylinder rod 19 drives the connecting plate 14 and the support plate 13 to move, and the connecting plate 14 cooperates with the sleeve 17 and the rotating rod 16 to move in a directional manner inside the guide rail 15, and the support plate 13 drives the tooth plate 9 to move forward through the force of the forward movement of the connecting plate 14, and the tooth plate 9 moves forward through the cooperation of the tooth groove 10 and the gear 12 to drive the lock plate 11 to approach the electromagnetic pilot valve, and the lock plate 11 moves together with the gasket 21 during the movement of the lock plate 11, and the electromagnetic pilot valve is clamped by the gasket 21 to achieve rapid clamping.

[0020] See also Figure 1-3 The outer surface of the rotating rod 16 is rotatably mounted with a sleeve 17, the top surface of the fixture bottom plate 1 is mounted with a second cylinder 18, the output end surface of the second cylinder 18 is mounted with a second cylinder rod 19, and the second cylinder rod 19 is fixedly connected to the sleeve 17. When the second cylinder 18 is started, the operation of the second cylinder 18 drives the second cylinder rod 19 to approach the electromagnetic pilot valve.

[0021] See also Figure 1-3 A locking plate 11 is fixedly connected to the front end surface of the tooth plate 9 , and a gasket 21 is installed on the front end surface of the locking plate 11 , and the gasket 21 is made of rubber material.

[0022] See also Figure 1-3 The fixture bottom plate 1 is provided with fixing holes 20 at equal intervals. The fixture bottom plate 1 is installed on the hydraulic valve test bench through the circumferential fixing holes 20, and then the electromagnetic pilot valve is placed on the fixture bottom plate 1.

[0023] Working principle: When the device is needed, first, the fixture base plate 1 is installed on the hydraulic valve test bench through the circumferential fixing hole 20, and then the electromagnetic pilot valve is placed on the fixture base plate 1, and then the first cylinder 5 is started. The operation of the first cylinder 5 drives the first cylinder rod 6 to move forward, and the first cylinder rod 6 moves forward to drive the self-locking clamping block 7 to move forward together to squeeze the electromagnetic pilot valve, and the self-locking clamping block 7 and the limit block 2 cooperate to limit clamping, and then the second cylinder 18 is started, and the operation of the second cylinder 18 drives the second cylinder rod 1 9 approaches the electromagnetic pilot valve, and the movement of the second cylinder rod 19 drives the connecting plate 14 and the support plate 13 to move. The connecting plate 14 cooperates with the sleeve 17 and the rotating rod 16 to move directionally inside the guide rail 15, and the support plate 13 drives the tooth plate 9 to move forward through the force of the connecting plate 14 moving forward. The tooth plate 9 moves forward and drives the lock plate 11 to approach the electromagnetic pilot valve through the cooperation of the tooth groove 10 and the gear 12. During the movement of the lock plate 11, the gasket 21 is moved together, and the electromagnetic pilot valve is clamped by the gasket 21 to achieve rapid clamping.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic self-locking pilot valve test fixture system, characterized in that: include, A fixture base plate (1), a limiting mechanism and a clamping mechanism; A fixture bottom plate (1), a limit block (2) being fixedly mounted on the front end surface at the top center of the fixture bottom plate (1); A limiting mechanism, the limiting mechanism being installed on the top surface of the clamp bottom plate (1), the limiting mechanism comprising a first cylinder (5), and the first cylinder (5) being installed on the top surface of the clamp bottom plate (1); A clamping mechanism, wherein the clamping mechanism is installed on the top surface of the bottom plate of the clamp bottom plate (1), and the clamping mechanism includes a movable groove (8). The top surface of the clamp bottom plate (1) is provided with movable grooves (8) in sequence and symmetrically at equal intervals, and a tooth plate (9) is slidably connected inside the movable groove (8). A tooth groove (10) is opened on the surfaces of the two tooth plates (9) close to each other, and a gear (12) is installed between the surfaces of the two tooth plates (9) located at the tooth groove (10), and the gear (12) is meshed and connected with the tooth plate (9) through the tooth groove (10).

2. The automatic self-locking pilot valve test fixture system according to claim 1 is characterized in that: The top surface of the clamp bottom plate (1) is symmetrically provided with fixed slide rails (3), and a slide block (4) is slidably mounted inside the fixed slide rails (3).

3. The automatic self-locking pilot valve test fixture system according to claim 1 is characterized in that: A first cylinder rod (6) is mounted on the output end surface of the first cylinder (5), and a self-locking pressing block (7) is mounted on the other end surface of the first cylinder rod (6).

4. The automatic self-locking pilot valve test fixture system according to claim 1, characterized in that: The clamping mechanism further comprises a support plate (13), the support plate (13) is rotatably mounted on the top surface of the gear (12), a connecting plate (14) is rotatably mounted on the outer surface of the other end of the support plate (13), and the two ends of the connecting plate (14) are rotatably connected to the two support plates (13) respectively, a rotating rod (16) is rotatably mounted inside the center of the connecting plate (14), a guide rail (15) is mounted on the top surface of the clamp bottom plate (1) at the rotating rod (16), and the rotating rod (16) slides inside the guide rail (15).

5. The automatic self-locking pilot valve test fixture system according to claim 4 is characterized in that: A sleeve (17) is rotatably mounted on the outer surface of the rotating rod (16), a second cylinder (18) is mounted on the top surface of the clamp bottom plate (1), a second cylinder rod (19) is mounted on the output end surface of the second cylinder (18), and the second cylinder rod (19) is fixedly connected to the sleeve (17).

6. The automatic self-locking pilot valve test fixture system according to claim 4, characterized in that: A locking plate (11) is fixedly connected to the front end surface of the tooth plate (9), a gasket (21) is installed on the front end surface of the locking plate (11), and the gasket (21) is made of rubber material.

7. The automatic self-locking pilot valve test fixture system according to claim 1, characterized in that: The fixture bottom plate (1) is provided with fixing holes (20) in sequence and at equal intervals.

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