Railway product door mechanism electromagnetic valve unit performance test equipment

Abstract

The invention discloses a railway product door mechanism solenoid valve unit performance test device which comprises a test device body, a clamp table top is arranged on the body, a clamp assembly is arranged on the clamp table top, and a detection cabinet is arranged on the rear side of the clamp table top. A computer host, a program-controlled direct-current power supply, a program-controlled withstand voltage and insulation resistance tester, a gas circuit control module and a control button group which are electrically connected with one another are arranged in the detection cabinet. According to the testing device, electrical testing, action testing, sealing testing and other tests are integrated on one device, clamping and debugging time is saved, manual operation errors are reduced, testing result data can be stored and output, one item point does not pass, a testing program is interrupted, the action testing and the sealing testing are all automatically completed, and the testing efficiency is improved. Manual button operation needs manual participation, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to electromagnetic valve structure test equipment technical field, especially a kind of railway product door mechanism electromagnetic valve unit performance test equipment. BACKGROUND

[0002] Door mechanism electromagnetic valve is a kind of automatic element controlled by electromagnetic force to open and close fluid (hydraulic or pneumatic) passage, belongs to actuator. Its working principle is based on the magnetic field generated after the energization of electromagnetic coil, drives valve core to move to change fluid direction, to realize the remote control of door.

[0003] For side sliding door mechanism electromagnetic valve performance test, original technology is that electromagnetic valve performance test each point needs manual test, insulation withstand voltage and insulation impedance electrical test need to be measured using electrical instrument equipment, other tests use self-made test equipment, manual data is recorded item by item.

[0004] Many detection procedures need to operate multiple different equipment to process, not only equipment is messy, need to move multiple times, and each test needs to be disassembled and assembled once on tooling fixture for the electromagnetic valve to be tested, needs to consume a lot of time, so the overall detection efficiency is very low. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the deficiencies in the prior art, and to provide a railway product door mechanism electromagnetic valve unit performance test equipment.

[0006] The technical scheme adopted by the present application is: a railway product door mechanism electromagnetic valve unit performance test equipment, comprising the body of test equipment, the fixture table is arranged on the body, the fixture assembly is arranged on the fixture table, and the detection cabinet is arranged on the rear side of the fixture table.

[0007] The detection cabinet is provided with a computer host, a program-controlled direct-current power supply, a program-controlled withstand voltage and insulation resistance tester, a gas path control module and a control button group which are electrically connected to each other;

[0008] The fixture assembly comprises a bottom plate, a base for loading the unit to be tested is arranged in the center of the bottom plate, clamping air cylinders are arranged at the left and right ends of the bottom plate, a push plate is connected to the output end of the clamping air cylinder, outer side jacking rods with built-in gas paths are arranged at the front and rear ends of the push plate, and the outer side jacking rods are in contact with the corresponding gas outlets of the unit to be tested when the clamping air cylinder clamps;

[0009] The central part of the push plate is provided with an air inlet switching air cylinder, and the output end of the air inlet switching air cylinder is provided with an air inlet jacking rod with built-in gas paths, and the air inlet jacking rod is in contact with the corresponding air inlet of the unit to be tested when the air inlet switching air cylinder jacks;

[0010] The upper ends of the outer tightening rod and the air inlet tightening rod are both provided with ventilation interfaces connected to the corresponding built-in air circuits, and the built-in air circuits are provided with solenoid valves and sensors;

[0011] The ventilation interface is connected to the air path control module through an air pipe.

[0012] The device of the present invention combines automatic measurement with manual design:

[0013] 1. Insulation resistance - automatic detection;

[0014] 2. Insulation withstand voltage - automatic power supply, check whether it is normal after 1 minute;

[0015] 3. Sealing test - automatic detection by sensor;

[0016] 4. Door closing solenoid valve action experiment - automatic detection;

[0017] 5. Relaxation and tightening time test - the adjustment of the adjustment screw requires manual operation;

[0018] 6. Minimum operating voltage - same as "4" and "5" operations;

[0019] 7. Manual button - manual button for manual operation.

[0020] The automation level of solenoid valve performance test items is greatly improved, which reduces the clamping time of the solenoid valve unit and reduces the number of manual operation items; increases test sensitivity and improves product quality; simplifies the operation process and improves work efficiency; and makes it easy to output test reports.

[0021] Furthermore, the air circuit control module described in the present invention includes an air source processing unit arranged in the detection cabinet, a four-way air pressure adjustment knob and corresponding pressure gauges, and an air circuit interface arranged on the detection cabinet panel.

[0022] Furthermore, the four-way air pressure adjustment knobs described in the present invention correspond to the high pressure, medium pressure, low pressure and clamp air pressure of the air supply respectively.

[0023] Furthermore, a display is provided at the center of the upper end surface of the detection cabinet of the present invention, and installation positions for a programmable withstand voltage and insulation resistance tester and a computer host are provided on the left and right sides of the display respectively.

[0024] Furthermore, the control button group described in the present invention includes an emergency stop button, a start button, a stop button and an indicator light.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. After the renovation and upgrading of the railway product door mechanism solenoid valve unit performance test equipment of the present invention, the device integrates electrical testing, action testing, sealing testing and other tests on one device, greatly reducing manual clamping and debugging time;

[0027] 2. The equipment provides four-way air pressure. According to the test program, different air pressure values ​​are selected to inflate the solenoid valve unit for testing. The sensor is used to automatically collect data. The test program sets the judgment standard value, and the collected data is compared to determine whether the product is qualified or not.

[0028] 3. The test result data can be saved and output. If one of the items fails, the test program will be interrupted. The action test and sealing test will be completed automatically. Manual button operation requires human participation, which improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the clamp assembly in the present invention.

[0031] Numbers in the figure: 1. Main body, 2. Fixture table, 3. Fixture assembly, 4. Testing cabinet, 5. Programmable withstand voltage and insulation resistance tester, 6. Bottom plate, 7. Unit under test, 8. Base, 9. Clamping cylinder, 10. Push plate, 11. Outer tightening rod, 12. Air outlet, 13. Air inlet switching cylinder, 14. Air inlet tightening rod, 15. Air inlet, 16. Ventilation interface, 17. Air pressure adjustment knob, 18. Pressure gauge, 19. Air line interface, 20. Display, 21. Installation position, 22. Emergency stop button, 23. Start button, 24. Stop button, 25. Indicator light. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below. The embodiments are implemented based on the technical solutions of the present invention, and detailed implementation methods and specific operating processes are given. However, the protection scope of the present invention is not limited to the following embodiments.

[0033] like Figure 1 and Figure 2 The device for testing the performance of a solenoid valve unit of a door mechanism of a railway product shown in the figure comprises a main body 1 of the testing device, a fixture table 2 is provided on the main body 1, a fixture assembly 3 is provided on the fixture table 2, and a test cabinet 4 is provided on the rear side of the fixture table 2;

[0034] The testing cabinet 4 is provided with a computer host, a program-controlled DC power supply, a program-controlled withstand voltage and insulation resistance tester 5, a gas circuit control module and a control button group which are electrically connected to each other;

[0035] The clamp assembly 3 comprises a bottom plate 6, a base 8 for loading the measured unit 7 is arranged in the center of the bottom plate 6, clamp cylinders 9 are arranged at the left and right ends of the bottom plate 6, a push plate 10 is connected to the output end of the clamp cylinder 9, outer side jacking rods 11 with built-in air paths are arranged at the front and rear ends of the push plate 10, and the outer side jacking rods 11 are in abutment with the corresponding air outlets 12 of the measured unit 7 when the clamp cylinder 9 is clamped;

[0036] The central part of the push plate 10 is provided with an air inlet switching cylinder 13, the output end of the air inlet switching cylinder 13 is provided with an air inlet jacking rod 14 with a built-in air path, and the air inlet jacking rod 14 is in abutment with the corresponding air inlets 15 of the measured unit 7 when the air inlet switching cylinder 13 is jacked;

[0037] The upper ends of the outer side jacking rods 11 and the air inlet jacking rod 14 are provided with air communication interfaces 16 in communication with the corresponding built-in air paths, and the built-in air paths are provided with electromagnetic valves and sensors;

[0038] The air communication interfaces 16 are connected with the air path control module through air pipes.

[0039] The air path control module comprises an air source processing unit arranged in the detection cabinet 4, four-way air pressure adjusting knobs 17 and corresponding pressure gauges 18 arranged on the panel of the detection cabinet 4, and an air path interface 19.

[0040] The four-way air pressure adjusting knobs 17 correspond to high pressure, medium pressure, low pressure and clamp air pressure respectively.

[0041] The central part of the upper end surface of the detection cabinet 4 is provided with a display 20, and the left and right sides of the display 20 are respectively provided with installation positions 21 of a program-controlled voltage-withstanding and insulation resistance tester 5 and a computer host.

[0042] The control button group comprises an emergency stop button 22, a start button 23, a stop button 24 and an indicator light 25.

[0043] Working principle:

[0044] The measured unit 7 of the electromagnetic valve is installed on the bottom plate 6 in the clamp assembly 3, the clamp cylinder 9 drives the outer side jacking rod 11 to abut the corresponding air outlet 12 of the measured unit 7;

[0045] The program-controlled voltage-withstanding and insulation resistance tester 5 receives program instructions for measuring the insulation resistance and insulation voltage of the measured unit 7, and the measurement data is displayed on the display 20 after being collected;

[0046] The fixture assembly 3 provides an air source to the unit under test 7 and fixes the unit under test 7: the clamping cylinder 9 is responsible for fixing and clamping the unit under test 7, and the air intake switching cylinder 13 is responsible for switching the left and right air inlets 15 of the unit under test 7. When the left unit of the unit under test 7 is debugged, the left air intake switching cylinder 13 is tightened, and when the right unit of the unit under test 7 is debugged, the right air intake switching cylinder 13 is tightened; the ventilation interface 16 on the outer tightening rod 11 and the air intake tightening rod 14 are respectively connected to the corresponding air path interface 19 through the air pipe, and at the same time, the air paths of the clamping cylinder 9, the air intake switching cylinder 13 and the corresponding air path interface 19 are connected.

[0047] The left and right components of the solenoid valve unit under test 7 can use the same fixture at the same time, without the need for manual replacement of fixtures and plugging and unplugging of air circuits. The test is automated through the test program, and the air circuit system equipment uses four different air pressures to meet the test requirements.

[0048] Solenoid valves and sensors are installed on the built-in gas circuit. The solenoid valve controls the conversion of the gas circuit. The sensor measures the gas pressure value at each port and detects gas leakage. The host computer calculates and analyzes the data. The sealing test and action test of the solenoid valve unit under test are controlled by the program, and the solenoid valve and sensor execute the commands.

Claims

1. A railway product door mechanism solenoid valve unit performance test equipment, characterized by: The device comprises a main body (1) of a testing device, wherein a fixture table (2) is provided on the main body (1), a fixture assembly (3) is provided on the fixture table (2), and a detection cabinet (4) is provided on the rear side of the fixture table (2); The detection cabinet (4) is provided with a computer host, a program-controlled DC power supply, a program-controlled withstand voltage and insulation resistance tester (5), an air path control module and a control button group which are electrically connected to each other; The clamp assembly (3) includes a base plate (6), a base (8) for loading the unit under test (7) is provided in the center of the base plate (6), a clamping cylinder (9) is provided at both the left and right ends of the base plate (6), the output end of the clamping cylinder (9) is connected to a propulsion plate (10), and the front and rear ends of the propulsion plate (10) are provided with an outer tightening rod (11) with a built-in air path, and when the clamping cylinder (9) is in a clamping action, the outer tightening rod (11) is connected to the corresponding air outlet (12) on the unit under test (7); An air intake switching cylinder (13) is provided at the center of the propulsion plate (10), and an air intake pressing rod (14) with a built-in air path is provided at the output end of the air intake switching cylinder (13). When the air intake switching cylinder (13) is in a pressing action, the air intake pressing rod (14) is pressed against the corresponding air intake port (15) on the unit under test (7); The upper ends of the outer tightening rod (11) and the air inlet tightening rod (14) are both provided with a ventilation interface (16) that is in communication with the corresponding built-in air circuit, and the built-in air circuit is provided with a solenoid valve and a sensor; The ventilation interface (16) is connected to the air path control module via an air pipe.

2. The railway product door mechanism solenoid valve unit performance testing equipment according to claim 1, characterized in that: The air circuit control module comprises an air source processing unit arranged in the detection cabinet (4), four-way air pressure regulating knobs (17) and corresponding pressure gauges (18) arranged on the panel of the detection cabinet (4), and an air circuit interface (19).

3. The railway product door mechanism solenoid valve unit performance testing equipment according to claim 2, characterized in that: The four-way air pressure regulating knobs (17) correspond to the high pressure, medium pressure, low pressure and clamp air pressure of the air supply respectively.

4. The railway product door mechanism solenoid valve unit performance testing equipment according to claim 1, characterized in that: A display (20) is provided at the center of the upper end surface of the detection cabinet (4), and installation positions (21) for a program-controlled withstand voltage and insulation resistance tester (5) and a computer host are provided on the left and right sides of the display (20), respectively.

5. The railway product door mechanism solenoid valve unit performance testing equipment according to claim 1, characterized in that: The control button group includes an emergency stop button (22), a start button (23), a stop button (24) and an indicator light (25).

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