Electromagnetic valve moving core detection tool

Abstract

The utility model relates to the technical field of electromagnetic valve detection, and discloses an electromagnetic valve moving core detection tool, which comprises a fixed frame, an adjusting groove arranged on the fixed frame, a bidirectional threaded rod rotatably arranged in the adjusting groove, an adjusting block fixedly arranged at the outer end of the bidirectional threaded rod, and a movable core arranged in the adjusting block. According to the detection tool for the movable core of the electromagnetic valve, the adjusting block is rotated to drive the two-way threaded rod to rotate, so that the distance between the two connecting plates is adjusted; after the distance between the connecting plates is adjusted, the clamping plates on the mounting plates in the connecting plates clamp the electromagnetic valve, so that the electromagnetic valve can be well kept stable during detection, and then after the electromagnetic valve is fixed, a worker can observe whether a movable core can be normally attracted or released by electrifying a coil of the electromagnetic valve, so that the detection accuracy is improved. And the action response time and the sensitivity are detected, so that the practicability of the tool is better improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic valve testing technology, specifically to a testing fixture for the moving core of an electromagnetic valve. Background Technology

[0002] Solenoid valves are electromagnetically controlled industrial devices and are fundamental components of automation used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems, and are used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, while ensuring both control accuracy and flexibility.

[0003] After the solenoid valve is manufactured, the moving core inside usually needs to be tested to check whether it is qualified. However, the traditional solenoid valve moving core testing fixtures are relatively simple and cannot keep the solenoid valve stable for testing. Moreover, the traditional testing fixtures cannot perform diversified testing on the moving core of the solenoid valve. Therefore, the traditional testing fixtures have low practicality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a solenoid valve moving core testing fixture. This solves the problem mentioned in the background section: after a solenoid valve is manufactured, its moving core generally needs to be tested to determine its quality. However, traditional solenoid valve moving core testing fixtures are limited in effectiveness and cannot effectively stabilize the solenoid valve for testing. Furthermore, traditional testing fixtures cannot perform diverse tests on the solenoid valve's moving core, resulting in low practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a solenoid valve moving core testing fixture, including a fixed frame, an adjustment groove on the fixed frame, a bidirectional threaded rod rotatably mounted in the adjustment groove, an adjustment block fixedly mounted at the outer end of the bidirectional threaded rod, two connecting plates slidably mounted in the adjustment groove, bidirectional threaded rods meshing at the bottom of both connecting plates, a sliding groove on each of the two connecting plates, a first screw rotatably mounted in the sliding groove, the top end of the first screw penetrating through the connecting plate, a first knob fixedly mounted at the top end of the first screw, a mounting plate slidably mounted in the sliding groove, a first screw meshing in the mounting plate, a clamping plate fixedly mounted on the outer surface of the mounting plate, and an insulating layer provided at the clamping end of the clamping plate.

[0006] By adopting the above technical solution, the adjusting block is rotated to drive the bidirectional threaded rod to rotate, thereby adjusting the distance between the two connecting plates. After the distance between the connecting plates is adjusted, the clamping plate on the inner mounting plate clamps the solenoid valve, thus maintaining stability during testing. After the solenoid valve is fixed, the operator can energize the solenoid valve coil to observe whether the moving core can normally engage or disengage, and test its action response time and sensitivity, thereby improving the practicality of the tooling.

[0007] Preferably, two vertical plates are fixedly installed on the fixing frame near the rear end. A stabilizing rod is fixedly installed in the vertical plate on the right side of the fixing frame, and a second screw is rotatably installed in the vertical plate on the left side of the fixing frame. A second knob is fixedly installed on the second screw.

[0008] Using the above technical solution, rotating the second knob drives the second screw to rotate. Since the second screw is inserted into the connecting frame, its rotation can effectively raise or lower the test rod, thereby adjusting its height. Furthermore, since a stabilizing rod is inserted at the other end of the connecting frame, the connecting frame can remain stable when it rises or falls within the vertical plate.

[0009] Preferably, a connecting frame is provided between the vertical plates, and a stabilizing rod and a second screw are respectively inserted at both ends of the connecting frame. A connecting rod is movably inserted inside the connecting frame, and a pushing block is fixedly installed at the outer end of the connecting rod. A fixing plate is fixedly installed on the connecting rod, and a spring is fixedly installed on the fixing plate. The other end of the spring is installed inside the connecting frame.

[0010] Using the above technical solution, by pressing the push block inward, the connecting rod drives the limiting plate forward. Then, the spring between the fixed plate and the connecting plate will contract, and the test rod at the front end of the limiting plate will collide with the metal rod on the axis of the solenoid valve to check whether it can move or reset smoothly and to determine whether there is any mechanical jamming. After the test rod hits the metal rod, the spring will reset to move the test rod away from the moving core of the solenoid valve, so that the staff can observe the moving core of the solenoid valve.

[0011] Preferably, a limiting plate is fixedly installed at the front end of the connecting rod, and a test rod is fixedly installed on the limiting plate.

[0012] Using the above technical solution, the connecting rod can be effectively restricted by the limiting plate, and the test rod at the front end of the limiting plate facilitates the testing of the moving core of the solenoid valve.

[0013] Preferably, the upper surface of the fixing frame has a storage groove near the front end.

[0014] By adopting the above technical solution, the storage slots opened on the fixing frame can be used to store parts removed from the solenoid valve, thereby preventing parts from being lost.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This solenoid valve moving core testing fixture uses an adjusting block to rotate a bidirectional threaded rod, thereby adjusting the distance between two connecting plates. Once the distance between the connecting plates is adjusted, the clamping plate on the inner mounting plate clamps the solenoid valve, ensuring stability during testing. After the solenoid valve is fixed, the operator can energize the solenoid valve coil to observe whether the moving core can normally engage or disengage, and test its action response time and sensitivity, thus improving the practicality of the fixture.

[0017] 2. This solenoid valve moving core testing fixture works by pressing the push block inward, causing the connecting rod to move the limiting plate forward. The spring between the fixed plate and the connecting rod then contracts, causing the test rod at the front end of the limiting plate to collide with the metal rod on the solenoid valve's axis (the moving core part of the solenoid valve). This checks whether the valve can move smoothly or reset, determining if there is any mechanical obstruction. After the test rod impacts the metal rod, the spring resets, moving the test rod away from the solenoid valve's moving core, facilitating observation of the moving core by the operator. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the solenoid valve moving core testing fixture of this utility model;

[0019] Figure 2 This is a side view of the solenoid valve moving core testing fixture of this utility model.

[0020] Figure 3 This is a schematic diagram of the connecting plate and related structures of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting frame and related structures of this utility model.

[0022] In the diagram: 1. Fixing frame; 2. Adjustment groove; 3. Two-way threaded rod; 4. Adjustment block; 5. Connecting plate; 6. Slide groove; 7. First screw; 8. First knob; 9. Mounting plate; 10. Clamping plate; 11. Vertical plate; 12. Stabilizing rod; 13. Second screw; 14. Second knob; 15. Connecting frame; 16. Connecting rod; 17. Pushing block; 18. Fixing plate; 19. Spring; 20. Limiting plate; 21. Test rod; 22. Storage groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Referring to Figures 1-4, a solenoid valve moving core testing fixture is described. The fixed frame 1 has an adjustment groove 2. A bidirectional threaded rod 3 is rotatably mounted within the adjustment groove 2. An adjustment block 4 is fixedly mounted at the outer end of the bidirectional threaded rod 3. Two connecting plates 5 are slidably mounted within the adjustment groove 2. The bottoms of both connecting plates 5 are engaged with the bidirectional threaded rod 3. Each connecting plate 5 has a sliding groove 6. A first screw 7 is rotatably mounted within the sliding groove 6. The top end of the first screw 7 extends through the connecting plate 5. A first knob 8 is fixedly mounted at the top end of the first screw 7. A mounting plate 9 is slidably mounted within the sliding groove 6. The first screw 7 is engaged within the mounting plate 9. A clamping plate 10 is fixedly mounted on the outer surface of the mounting plate 9. An insulating layer is provided at the clamping end of the clamping plate 10. A storage groove 22 is provided on the upper surface of the fixed frame 1 near the front end.

[0026] Working principle: When the moving core of the solenoid valve needs to be tested, the operator first rotates the first knob 8, which drives the screw to rotate. This causes the mounting plate 9 to adjust the height of the clamping plate 10, thus adjusting the height of the moving core. After the height of the clamping plate 10 is adjusted, the operator rotates the adjusting block 4, which drives the bidirectional threaded rod 3 to rotate. Since the bidirectional threaded rod 3 is located in the slide groove 6 and engages with the bottom of the connecting plate 5, the rotation of the bidirectional screw can effectively adjust the distance between the two connecting plates 5. After adjustment, the clamping plate 10 on the inner mounting plate 9 clamps the solenoid valve, thus ensuring its stability during testing. The clamping end of the clamping plate 10 has an insulating layer, which provides good insulation. After the solenoid valve is fixed, the operator can energize the solenoid valve coil to observe whether the moving core can normally engage or disengage, and test its action response time and sensitivity, thereby improving the practicality of the tooling. The storage slot 22 on the fixing frame 1 can be used to store parts removed from the solenoid valve, thus preventing parts from being lost.

[0027] Example 2:

[0028] Referring to Figures 1-4, a solenoid valve moving core testing fixture is described. Two vertical plates 11 are fixedly installed near the rear end of the fixed frame 1. A stabilizing rod 12 is fixedly installed inside the right vertical plate 11 of the fixed frame 1. A second screw 13 is rotatably installed inside the left vertical plate 11 of the fixed frame 1. A second knob 14 is fixedly installed on the second screw 13. A connecting frame 15 is provided between the vertical plates 11. The stabilizing rod 12 and the second screw 13 are respectively inserted at both ends of the connecting frame 15. A connecting rod 16 is movably inserted inside the connecting frame 15. A pushing block 17 is fixedly installed at the outer end of the connecting rod 16. A fixing plate 18 is fixedly installed on the connecting rod 16. A spring 19 is fixedly installed on the fixing plate 18. The other end of the spring 19 is installed inside the connecting frame 15. A limiting plate 20 is fixedly installed at the front end of the connecting rod 16. A test rod 21 is fixedly installed on the limiting plate 20.

[0029] Working principle: After the solenoid valve is fixed by the clamp 10, the operator rotates the second knob 14, which drives the second screw 13 to rotate. Since the second screw 13 is inserted into the connecting frame 15, its rotation allows it to rise or fall, thereby adjusting the height of the test rod 21. A stabilizing rod 12 is inserted at the other end of the connecting frame 15, ensuring stability during its rise or fall within the vertical plate 11. Once the height of the test rod 21 is adjusted... Next, the operator presses the push block 17 inward, causing the connecting rod 16 to move the limiting plate 20 forward. The spring 19 between the fixing plate 18 and the connection then retracts, causing the test rod 21 at the front end of the limiting plate 20 to collide with the metal rod on the solenoid valve's axis, specifically the moving core of the solenoid valve. This checks whether the solenoid valve can move or reset smoothly, determining if there is any mechanical obstruction. After the test rod 21 impacts the metal rod, the spring 19 resets, moving the test rod 21 away from the moving core of the solenoid valve, allowing the operator to observe the moving core.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve moving core testing fixture, comprising a fixing frame (1), characterized in that: The fixing frame (1) has an adjustment groove (2), a bidirectional threaded rod (3) is rotatably installed in the adjustment groove (2), an adjustment block (4) is fixedly installed at the outer end of the bidirectional threaded rod (3), two connecting plates (5) are slidably installed in the adjustment groove (2), the bottoms of the two connecting plates (5) are engaged with the bidirectional threaded rod (3), a sliding groove (6) is opened in the two connecting plates (5), a first screw (7) is rotatably installed in the sliding groove (6), the top end of the first screw (7) passes through the connecting plate (5), a first knob (8) is fixedly installed at the top end of the first screw (7), an installation plate (9) is slidably installed in the sliding groove (6), the first screw (7) is engaged in the installation plate (9), a clamping plate (10) is fixedly installed on the outer surface of the installation plate (9), and an insulating layer is provided at the clamping end of the clamping plate (10).

2. The solenoid valve moving core testing fixture according to claim 1, characterized in that: Two vertical plates (11) are fixedly installed near the rear end of the fixed frame (1). A stabilizing rod (12) is fixedly installed inside the vertical plate (11) on the right side of the fixed frame (1). A second screw (13) is rotatably installed inside the vertical plate (11) on the left side of the fixed frame (1). A second knob (14) is fixedly installed on the second screw (13).

3. The solenoid valve moving core testing fixture according to claim 2, characterized in that: A connecting frame (15) is provided between the vertical plates (11). A stabilizing rod (12) and a second screw (13) are respectively inserted at both ends of the connecting frame (15). A connecting rod (16) is movably inserted inside the connecting frame (15). A pushing block (17) is fixedly installed at the outer end of the connecting rod (16). A fixing plate (18) is fixedly installed on the connecting rod (16). A spring (19) is fixedly installed on the fixing plate (18). The other end of the spring (19) is installed inside the connecting frame (15).

4. The solenoid valve moving core testing fixture according to claim 3, characterized in that: A limiting plate (20) is fixedly installed at the front end of the connecting rod (16), and a test rod (21) is fixedly installed on the limiting plate (20).

5. The solenoid valve moving core testing fixture according to claim 1, characterized in that: The upper surface of the fixing frame (1) has a storage slot (22) near the front end.

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