CDC shock absorber solenoid valve test mechanism

Abstract

The utility model belongs to the technical field of electromagnetic valve testing equipment, and particularly discloses a CDC shock absorber electromagnetic valve testing mechanism which comprises a testing main frame, a testing assembly is fixedly installed on the testing main frame, the testing assembly comprises a testing tool, the upper portion of the testing tool abuts against the lower surface of a transition tool, the transition tool is installed on a feeding station of a rotating table, and the rotating table is installed on the testing main frame. A hydraulic cylinder is fixedly installed on the testing main frame, a piston rod of the hydraulic cylinder is fixedly connected with a pressing assembly, and a pressing block of the pressing assembly abuts against the upper surface of the transition tool. According to the utility model, the transition tool is designed, the process of tightening and loosening a product (CDC valve) is independent of a test station, the rapid connection of the front and rear groups of products is realized through the rotating table, two products are tested at the same time, and the test efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of solenoid valve testing equipment, and in particular to a solenoid valve testing mechanism for CDC vibration dampers. Background Technology

[0002] CDC (Continuous Damping Control) shock absorber solenoid valves are intelligent systems that optimize vehicle dynamics by adjusting the damping force of the shock absorbers in real time. At its core, the CDC solenoid valve controls the flow path of the damping fluid, enabling dynamic adjustment of the suspension stiffness to improve ride comfort and enhance vehicle handling.

[0003] Compared to traditional suspension technology, CDC (Continuous Damping Control) technology offers significant advantages in dynamic response, driving comfort, and handling performance. CDC technology enables real-time continuous adjustment of the solenoid valve, resulting in stepless variable damping force. It boasts millisecond-level response speed and supports multi-segment subdivided damping curves. It can improve seat ride comfort by suppressing high-frequency vibrations and actively enhance support during high-speed lane changes.

[0004] High-performance products require a more refined manufacturing environment and more precise simulation testing. The hydraulic pressure for CDC product testing reaches 150 bar. During testing, the hydraulic reaction force on the CDC valve is very large, and it cannot be counteracted by direct tightening. Currently, the common method is to directly screw the CDC valve onto the testing fixture (the CDC valve itself has threads). Therefore, this method has obvious drawbacks: a significant amount of time is spent at the testing station tightening and loosening the product, which is detrimental to improving testing efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problems existing in the background art. To this end, a testing mechanism for a CDC vibration damper solenoid valve is provided.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A CDC vibration damper solenoid valve testing mechanism includes a main testing frame, on which a testing component is fixedly mounted. The testing component includes a testing fixture, the upper part of which abuts against the lower surface of a transition fixture. The transition fixture is mounted on a loading station of a rotary table. A hydraulic cylinder is fixedly mounted on the main testing frame, and the piston rod of the hydraulic cylinder is fixedly connected to a clamping assembly. The clamping block of the clamping assembly abuts against the upper surface of the transition fixture.

[0008] The following is a further defined technical solution of this utility model: the transition tooling includes a tooling plate, the rotary table is symmetrically arranged with at least two loading stations, the loading stations are configured as mounting slots, and the tooling plate is placed in the mounting slots.

[0009] The following is a further technical solution of this utility model: a V-shaped limiting block is fixedly connected to the tooling plate; a limiting groove is opened on the two symmetrical inner walls of the mounting groove near the groove opening; a protrusion is fixedly provided in the limiting groove; the V-shaped limiting block is inserted into the limiting groove and the V-groove of the V-shaped limiting block cooperates with the protrusion.

[0010] The following is a further defined technical solution of this utility model: a plurality of CDC valve mounting cylinders are provided on the tooling plate, and the inner wall of the CDC valve mounting cylinder is provided with internal threads, and the CDC valve mounting cylinder is threadedly connected to the CDC valve.

[0011] The following is a further technical solution of this utility model: the lower side of the rotary table is fixedly mounted on the output shaft of the rotary motor.

[0012] The following is a further defined technical solution of this utility model: the test frame includes a base plate and a top plate, the bottom ends of guide columns are fixedly connected to both ends of the base plate, the top ends of guide columns are fixedly connected to both ends of the top plate, and the test assembly is fixedly installed on the base plate.

[0013] The following is a further defined technical solution of this utility model: the clamping assembly includes a sliding plate, through holes are provided on both sides of the sliding plate for guide posts to pass through, the piston rod of the hydraulic cylinder is fixedly connected to the upper surface of the sliding plate, and the clamping block is fixedly connected to the lower surface of the sliding plate.

[0014] The following is a further defined technical solution of this utility model: power plugs are fixedly connected to both sides of the lower surface of the slide plate, the power plugs are electrically connected to the CDC valve, and pneumatic-electric aviation plugs are fixedly installed on the slide plate.

[0015] The following is a further technical solution of this utility model: the rotary table is fixedly provided with multiple limiting columns, and the top of the limiting columns abuts against or separates from the sliding plate.

[0016] Compared with the prior art, the present invention has the following technical effects:

[0017] This invention designs a transition fixture to separate the tightening and loosening process of the product (CDC valve) into a separate testing station, and uses a rotary table to achieve rapid connection between the two sets of products, allowing for simultaneous testing of two products and greatly improving testing efficiency.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the transition tooling in this utility model.

[0022] Reference numerals: 1. Test fixture; 2. Rotary table; 3. Hydraulic cylinder; 4. Clamping block; 5. Fixture plate; 6. V-shaped limit block; 7. CDC valve mounting cylinder; 8. CDC valve; 9. Rotary motor; 10. Base plate; 11. Top plate; 12. Guide column; 13. Slide plate; 14. Power plug; 15. Pneumatic-electric connector; 16. Limit column; 17. Test station; 18. Flow meter; 19. Hydraulic test circuit; 20. Pressure sensor; 21. Loading station. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0027] like Figure 1 As shown, this embodiment provides a CDC vibration damper solenoid valve testing mechanism, mainly composed of a test frame, a test assembly, a rotary table 2, a transition fixture, a clamping assembly, and a hydraulic cylinder 3. The CDC vibration damper solenoid valve (hereinafter referred to as CDC valve 8) is pre-placed on the loading station 21 of the rotary table 2 via the transition fixture. Then, as the rotary table 2 rotates, the transition fixture rotates, placing the CDC valve 8 on the test station 17 of the test assembly. The hydraulic cylinder 3 operates, causing the clamping block 4 of the clamping assembly to move up and down, clamping and sealing the transition fixture. Finally, the test assembly performs performance testing on the CDC valve 8.

[0028] like Figure 1 As shown, the test frame consists of a base plate 10, a top plate 11, and two guide columns 12. The bottom ends of the guide columns 12 are fixedly connected to both ends of the base plate 10, and the top ends of the guide columns 12 are fixedly connected to both ends of the top plate 11.

[0029] The test assembly consists of a test fixture 1, a power plug 14, a pneumatic-electric connector 15, a flow meter 18, a hydraulic test circuit 19, and a pressure sensor 20. Through the electrical connections of the various components of the test assembly, the performance of the CDC valve 8 is tested. It should be noted that the electrical connections of the test assembly and its components, as well as the working process of the test assembly performing performance testing on the CDC valve 8, are existing technologies and are not within the scope of protection of this utility model. This embodiment will not describe them in detail.

[0030] like Figure 1 As shown, most of the components in the test assembly are fixedly mounted on the base plate 10; a small number of components are fixedly mounted on other structures. For example, the power plug 14 is mounted on the lower surface of the slide plate 13 and moves up and down with the slide plate 13. When the slide plate 13 moves downward, the power plug 14 is electrically connected to the CDC valve 8, and when the slide plate 13 moves upward, the power plug 14 is de-energized from the CDC valve 8. The pneumatic-electric connector 15 is mounted on the slide plate 13 and moves up and down with the slide plate 13.

[0031] like Figure 1As shown, a transition fixture is installed on the loading station 21 of the rotary table 2.

[0032] like Figure 2 As shown, the transition fixture consists of a fixture plate 5, two V-shaped limiting blocks 6, and two CDC valve mounting cylinders 7. The two V-shaped limiting blocks 6 are symmetrically installed on the sides of the fixture plate 5 in the width direction, and the two CDC valve mounting cylinders 7 are symmetrically installed on the fixture plate 5 in the length direction. The inner wall of the CDC valve mounting cylinder 7 has internal threads; therefore, the CDC valve mounting cylinder 7 is threadedly connected to the CDC valve 8, allowing the CDC valve 8 to be pre-installed on the transition fixture. The rotary table 2 has two symmetrical loading stations 21, which are configured as mounting grooves. The fixture plate 5 is placed in the mounting groove. Limiting grooves are formed on the two symmetrical inner walls of the mounting groove near the groove opening. Protrusions are fixedly installed in the limiting grooves. The V-shaped limiting blocks 6 are inserted into the limiting grooves, and the V-grooves of the V-shaped limiting blocks 6 cooperate with the protrusions.

[0033] The rotary table 2 rotates. Specifically, the lower side of the rotary table 2 is fixedly mounted on the output shaft of the rotary motor 9. The rotary motor 9 is fixedly mounted on the operating platform (not shown in the figure), and the base plate 10 of the test frame is fixedly mounted on the operating platform.

[0034] The transition fixture rotates via the rotary table 2, positioning the CDC valve 8 on the transition fixture at the test station 17 of the test assembly. The upper part of the test fixture 1 abuts against the lower surface of the fixture plate 5. At this time, the hydraulic cylinder 3 starts working, driving the clamping assembly to move up and down. The clamping assembly consists of a sliding plate 13 and a clamping block 4, etc. The hydraulic cylinder 3 is fixedly mounted on the top plate 11. The piston rod of the hydraulic cylinder 3 passes through the top plate 11 and is fixedly connected to the upper surface of the sliding plate 13. Through holes are provided on both sides of the sliding plate 13 for the guide posts 12 to pass through. The lower surface of the sliding plate 13 is fixedly connected to the clamping block 4. During the downward movement, the clamping block 4 abuts against the upper surface of the transition fixture. Furthermore, four limiting posts 16 are fixedly installed on the rotary table 2. The top of the limiting posts 16 abuts against or separates from the sliding plate 13 to limit the downward clamping position.

[0035] The working process of this embodiment will be further described below:

[0036] The CDC valve 8 is pre-threaded onto the transition fixture, which is placed in one of the two loading stations 21 of the rotary table 2.

[0037] The rotary table 2 rotates and moves, causing the CDC valve 8 on the transition fixture to enter the test station 17;

[0038] When the hydraulic cylinder 3 is working, its piston rod moves downward, which drives the clamping block 4 to move downward, clamping and sealing the transition tooling. At the same time, the power plug 14 moves downward and connects to the CDC valve 8 electrically.

[0039] The testing components perform performance tests on the CDC valve 8: for example, testing the product's PQ curve, IQ curve, IP curve, and response time curve;

[0040] After the test is completed, the transition fixture is removed from the test station 17, and a transition fixture symmetrical to the transition fixture enters the test station 17. After the transition fixture is removed, the CDC valve 8 is loosened and taken out, and this cycle is repeated.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the present utility model's technical solution. Therefore, all equivalent changes made based on the shape, structure, and principle of the present utility model without departing from its technical solution should be covered within the protection scope of the present utility model.

Claims

1. A testing mechanism for a solenoid valve of a CDC vibration damper, characterized in that, The test includes a main test frame, on which a test component is fixedly installed. The test component includes a test fixture (1), the upper part of which abuts against the lower surface of a transition fixture. The transition fixture is installed on the loading station (21) of a rotary table (2). A hydraulic cylinder (3) is fixedly installed on the main test frame. The piston rod of the hydraulic cylinder (3) is fixedly connected to a clamping component. The clamping block (4) of the clamping component abuts against the upper surface of the transition fixture.

2. The CDC vibration damper solenoid valve testing mechanism as described in claim 1, characterized in that, The transition fixture includes a fixture plate (5), and the rotary table (2) is symmetrically arranged with at least two loading stations (21). The loading station (21) is set as an installation groove, and the fixture plate (5) is placed in the installation groove.

3. The CDC vibration damper solenoid valve testing mechanism as described in claim 2, characterized in that, V-shaped limiting block (6) is fixedly connected to the tooling plate (5). Limiting grooves are opened on the two symmetrical inner walls of the mounting groove near the groove opening. A protrusion is fixedly set in the limiting groove. The V-shaped limiting block (6) is inserted into the limiting groove and the V groove of the V-shaped limiting block (6) cooperates with the protrusion.

4. The CDC vibration damper solenoid valve testing mechanism as described in claim 2, characterized in that, The tooling plate (5) is provided with multiple CDC valve mounting cylinders (7), the inner wall of the CDC valve mounting cylinder (7) is provided with internal threads, and the CDC valve mounting cylinder (7) is threadedly connected to the CDC valve (8).

5. The CDC vibration damper solenoid valve testing mechanism as described in claim 1, characterized in that, The lower side of the rotary table (2) is fixedly mounted on the output shaft of the rotary motor (9).

6. The CDC vibration damper solenoid valve testing mechanism as described in claim 1, characterized in that, The test frame includes a base plate (10) and a top plate (11). The bottom ends of the guide columns (12) are fixedly connected to both ends of the base plate (10), and the top ends of the guide columns (12) are fixedly connected to both ends of the top plate (11). The test components are fixedly installed on the base plate (10).

7. The CDC vibration damper solenoid valve testing mechanism as described in claim 6, characterized in that, The clamping assembly includes a sliding plate (13), with through holes on both sides for the guide post (12) to pass through. The upper surface of the sliding plate (13) is fixedly connected to the piston rod of the hydraulic cylinder (3), and the lower surface of the sliding plate (13) is fixedly connected to the clamping block (4).

8. The CDC vibration damper solenoid valve testing mechanism as described in claim 7, characterized in that, Power plugs (14) are fixedly connected to both sides of the lower surface of the slide plate (13). The power plugs (14) are electrically connected to the CDC valve (8). Pneumatic-electric aviation plugs (15) are fixedly installed on the slide plate (13).

9. The CDC vibration damper solenoid valve testing mechanism as described in claim 7, characterized in that, The rotating platform (2) is fixedly provided with multiple limiting posts (16), the top of the limiting posts (16) abutting against or separating from the sliding plate (13).

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