CN108362985B

CN108362985B - Full-automatic detection device for electromagnetic valve electrical property

Info

Publication number: CN108362985B
Application number: CN201810482095.3A
Authority: CN
Inventors: 张文娇; 苏晨; 权保; 李海; 韩流; 蒲爱香; 张龙
Original assignee: Xian Aerospace Propulsion Institute
Current assignee: Xian Aerospace Propulsion Institute
Priority date: 2018-05-18
Filing date: 2018-05-18
Publication date: 2023-08-25
Anticipated expiration: 2038-05-18
Also published as: CN108362985A

Abstract

The invention provides a full-automatic detection device for the electrical performance of an electromagnetic valve, which comprises an industrial personal computer, a data acquisition box, a programmable control linear power supply, a voltage and current acquisition module, a switching power supply, a withstand voltage insulation tester, a digital multimeter, a photoelectric coupler matrix, a relay matrix and an electromagnetic valve clamping wiring terminal; the device realizes the detection of multiple performances of various electromagnetic valves of different types on the basis of ensuring the safety detection of the electrical performance of the electromagnetic valve through the design of the relay matrix, simultaneously realizes the simplest design of the relay matrix, and the tested valve and the device can complete all test items of the valve by only carrying out one-time cable clamping, and is widely applicable to various types of valves, thereby solving the technical problem that the products need to be rewiring before each test because the various test items of the existing electromagnetic valve are mutually independent.

Description

Full-automatic detection device for electromagnetic valve electrical property

Technical Field

The invention relates to a full-automatic detection device for the electrical performance of an electromagnetic valve.

Background

The purpose of the construction test device is to improve the automation level of the test, improve the working efficiency and reduce the test personnel. When the current electromagnetic valve is used for electrical performance test, a test system is required to be temporarily built, a digital multimeter is used for measuring coil resistance, on-resistance and coil temperature rise for inspection, a withstand voltage tester is used for measuring the electric strength, a megaohm meter is used for measuring insulation resistance, and a mechanical manometer, voltmeter, ammeter, slide wire rheostat and other instruments are used for measuring pull-in voltage, release current, response time and the like.

The test items are mutually independent, the product needs to be rewiring before each test, the preparation work in the early stage is long, the operation of the test process is complex and complicated, the investment of test personnel is more, the reliability is low, human reading errors exist, the data processing is difficult, and the test data cannot be managed through a computer.

Disclosure of Invention

The invention provides an electromagnetic valve electrical property detection device, which aims to solve the technical problem that various test items of the existing electromagnetic valve are mutually independent and the product needs to be rewiring before each test is carried out.

The technical scheme of the invention is as follows:

the electromagnetic valve electrical property full-automatic detection device is characterized in that: the device comprises an industrial personal computer, a data acquisition machine box, a programmable control linear power supply, a voltage and current acquisition module, a switching power supply, a withstand voltage insulation tester, a digital multimeter, a photoelectric coupler matrix, a relay matrix and an electromagnetic valve clamping wiring terminal;

the data acquisition machine case comprises an AI data acquisition module, an AO output module and a DI/O module;

the industrial personal computer is connected with the programmable control linear power supply through the AO output module and is used for enabling the programmable control linear power supply to generate voltage for the action of the electromagnetic valve to be tested;

The programmable control linear power supply is connected with the relay matrix through the voltage and current acquisition module and supplies power for the electromagnetic valve to be tested;

the voltage and current acquisition module acquires the output voltage of the programmable control linear power supply and the current value of the electromagnetic valve to be tested under the power supply voltage, and feeds the output voltage and the current value back to the industrial personal computer through the AI data acquisition module;

the switching power supply is used for supplying power to the voltage and current acquisition module and the AI data acquisition module;

the voltage-resistant insulation tester and the digital multimeter are connected with the industrial personal computer, and the industrial personal computer controls the voltage-resistant insulation tester and the digital multimeter and reads and displays data;

the photoelectric coupler matrix comprises a plurality of photoelectric couplers for controlling the on and off of each relay in the relay matrix;

the industrial personal computer controls the switching value of each photoelectric coupler in the photoelectric coupler matrix through the DI/O module;

the relay matrix has the same structure and comprises a primary relay, a secondary relay and a tertiary relay, wherein the primary relay comprises a relay KF4, a relay KF25, a relay KF29 and a relay KF31; the secondary relay comprises a relay KF6, a relay KF7 and a relay KF43; the three-stage relay comprises a relay KF9 and a relay KF10;

Each relay comprises a fixed contact set, a normally closed contact set and a normally open contact set, wherein the fixed contact set comprises a fixed contact 9, a fixed contact 10, a fixed contact 11 and a fixed contact 12, the normally closed contact set comprises a normally closed contact 1, a normally closed contact 2, a normally closed contact 3 and a normally closed contact 4, the normally open contact set comprises a normally open contact 5, a normally open contact 6, a normally open contact 7 and a normally open contact 8, the fixed contact 9 corresponds to the normally closed contact 1 and the normally open contact 5, the fixed contact 10 corresponds to the normally closed contact 2 and the normally open contact 6, the fixed contact 11 corresponds to the normally closed contact 3 and the normally open contact 7, and the fixed contact 12 corresponds to the normally closed contact 4 and the normally open contact 8;

the electromagnetic valve clamping wiring terminal comprises an A+ terminal, a B+ terminal, a C-terminal and a D-terminal;

the fixed contact 9, the fixed contact 10, the fixed contact 11 and the fixed contact 12 of the relay KF25 are respectively and correspondingly connected with an A+ terminal, a B+ terminal, a C-terminal and a D-terminal of the electromagnetic valve clamping wiring terminal in sequence; the normally closed contact 1 of the relay KF25 is connected with the normally open contact 6 and the fixed contact 9 of the relay KF 4; the normally closed contact 4 of the relay KF25 is connected with the normally open contact 7 and the fixed contact 12 of the relay KF 4; the normally closed contact 2, the normally closed contact 3, the normally open contact 5 and the normally open contact 8 of the relay KF25 are suspended;

The fixed contact 10 of the relay KF4 is connected with the B+ terminal, the fixed contact 11 of the relay KF4 is connected with the C-terminal of the electromagnetic valve clamping wiring terminal, and the normally closed contact group of the relay KF4 is suspended; the normally open contact 5 and the normally open contact 6 of the relay KF4 are connected with the fixed contact 9 and the fixed contact 10 of the relay KF6, the normally open contact 7 is connected with the fixed contact 9 of the relay KF7, and the normally open contact 8 is connected with the fixed contact 10 of the relay KF 7;

the fixed contact 9 of the relay KF29 is connected with the fixed contact 9 of the relay KF 4; the fixed contact 10 of the relay KF29 is connected with the fixed contact 10 of the relay KF 4; the fixed contact 11 and the fixed contact 12 of the relay KF29 are suspended in the air; the normally closed contact set of the relay KF29 is suspended; the normally open contact 5 of the relay KF29 is connected with the fixed contact 9 of the relay KF6, the normally open contact 6 of the relay KF29 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF7, and the normally open contact 7 and the normally open contact 8 of the relay KF29 are suspended;

the fixed contact 9 of the relay KF31 is connected with the fixed contact 11 of the relay KF 4; the fixed contact 10 of the relay KF31 is connected with the fixed contact 12 of the relay KF 4; the fixed contact 11 and the fixed contact 12 of the relay KF31 are suspended in the air; the normally closed contact set of the relay KF31 is suspended; the normally open contact 5 of the relay KF31 is connected with the fixed contact 9 of the relay KF6, the normally open contact 6 of the relay KF31 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF7, and the normally open contact 7 and the normally open contact 8 of the relay KF31 are suspended;

The fixed contact 11 of the relay KF6 is connected with the trigger voltage of the DI/O module, the fixed contact 12 of the relay KF6 is suspended, the normally closed contact 1 of the relay KF6 is connected with the V+ end of the voltage and current acquisition module, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4 and the normally open contact 8 of the relay KF6 are suspended, the normally open contact 5 of the relay KF6 is connected with the fixed contact 9 of the relay KF9 and the fixed contact 9 of the relay KF10, and the normally open contact 6 of the relay KF6 is connected with the fixed contact 10 of the relay KF9 and the fixed contact 10 of the relay KF 10; the normally open contact 7 of the relay KF6 is connected with the fixed contact 11 of the relay KF 9;

the fixed contact 11 and the fixed contact 12 of the relay KF7 are suspended, the normally closed contact 1 of the relay KF7 is connected with the V-end of the voltage and current acquisition module, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF7 are suspended, the normally open contact 5 of the relay KF7 is connected with the fixed contact 9 of the relay KF9, the fixed contact 9 of the relay KF10 and the fixed contact 9 of the relay KF43, and the normally open contact 6 of the relay KF7 is connected with the fixed contact 10 of the relay KF9, the fixed contact 10 of the relay KF10 and the fixed contact 10 of the relay KF 43;

The fixed contact 9 of the relay KF43 is connected with the normally open contact 7, and the fixed contact 10 of the relay KF43 is connected with the fixed contact 11; the normally closed contact group, the normally open contact 5, the normally open contact 6 and the normally open contact 8 of the relay KF43 are suspended;

the normally closed contact 1 of the relay KF9 is connected with a Vs+ end of the digital multimeter, the normally closed contact 2 of the relay KF9 is connected with an Ex+ end of the digital multimeter, the normally closed contact 3, the normally closed contact 4, the normally open contact 8 and the fixed contact 12 of the relay KF9 are suspended, the normally open contact 5 of the relay KF9 and the normally open contact 6 of the relay KF9 are connected with a V+ end of the withstand voltage insulation tester, the normally open contact 7 of the relay KF9 is used for outputting a DI/O module trigger voltage, the DI/O module trigger voltage is used for triggering a DI/O module, and the industrial personal computer detects that the DI/O module is triggered and then carries out high-voltage warning;

the fixed contact 11 and the fixed contact 12 of the relay KF10 are suspended, the normally closed contact 1 of the relay KF10 is connected with the Vs-end of the digital multimeter, the normally closed contact 2 of the relay KF10 is connected with the Ex-end of the digital multimeter, and the normally open contact 5 of the relay KF10 and the normally open contact 6 of the relay KF10 are connected with the V+ end of the withstand voltage insulation tester.

Further, for testing the solenoid valve housing and the valve body, the device of the invention also comprises a housing wiring terminal and a valve body wiring terminal;

the relay matrix also comprises a relay KF23 with the same structure as the relay KF4, the photoelectric coupler matrix also comprises a photoelectric coupler KF22 for controlling the relay KF23 to be powered on and powered off,

the normally closed contact 1 of the relay KF23 is connected with the shell wiring terminal, the normally open contact 5 of the relay KF23 is connected with the valve body wiring terminal, the fixed contact 9 of the relay KF23 is connected with the V-end of the withstand voltage insulation tester, and the other contacts are suspended.

Further, in order to realize the test of the self-locking valve, the electromagnetic valve electric performance full-automatic detection device further comprises a self-locking valve clamping terminal, wherein the self-locking valve clamping terminal comprises an A1 end, an A end, a common 1 end, a B end and a B1 end;

the primary relay further comprises a relay KF12, the secondary relay further comprises a relay KF27 and a relay KF14, and the photoelectric coupler matrix further comprises a plurality of photoelectric couplers for controlling the relay KF12, the relay KF27 and the relay KF14 to be powered on and powered off;

the fixed contact 9 of the relay KF12 is connected with the end A, the fixed contact 10 of the relay KF12 is connected with the end common, the fixed contact 11 of the relay KF12 is connected with the end common 1, the fixed contact 12 of the relay KF12 is connected with the end B, the normally closed contact group of the relay KF12 is suspended, the normally open contact 5 of the relay KF12 is connected with the fixed contact 9 of the relay KF27, the normally open contact 6 of the relay KF12 is connected with the fixed contact 10 of the relay KF27, the normally open contact 7 of the relay KF12 is connected with the fixed contact 11 of the relay KF27, and the normally open contact 8 of the relay KF12 is connected with the fixed contact 12 of the relay KF 27;

The normally closed contact 1 of the relay KF27 is connected with the fixed contact 9 of the relay KF14, the normally closed contact 2 of the relay KF27 is connected with the fixed contact 10 of the relay KF14, the normally closed contact 3 of the relay KF27 is connected with the fixed contact 11 of the relay KF14, the normally closed contact 4 of the relay KF27 is connected with the fixed contact 12 of the relay KF14, and the normally open contact group of the relay KF27 is suspended;

the normally closed contact 1, the normally open contact 6, the normally open contact 7 and the normally closed contact 4 of the relay KF14 are all connected with the V-end of the voltage and current acquisition module, and the normally open contact 5, the normally closed contact 2, the normally closed contact 3 and the normally open contact 8 of the relay KF14 are all connected with the V+ end of the voltage and current acquisition module.

Further, the primary relay further comprises a relay KF16 and a relay KF18, and the tertiary relay further comprises a relay KF20 and a relay KF21; the photoelectric coupler matrix further comprises a plurality of photoelectric couplers for controlling the on and off of the relay KF16, the relay KF18, the relay KF20 and the relay KF21;

the fixed contact 9 of the relay KF16 is connected with the end A1, the fixed contact 10 of the relay KF16 is connected with the end A, the fixed contact 11 of the relay KF16 is connected with the common end, and the fixed contact 12 of the relay KF16 is connected with the common end 1; the normally closed contact set of the relay KF16 is suspended, the normally open contact 5 of the relay KF16 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF16 is connected with the fixed contact 10 of the relay KF20, the normally open contact 7 of the relay KF16 is connected with the fixed contact 9 of the relay KF21, and the normally open contact 8 of the relay KF16 is connected with the fixed contact 10 of the relay KF21;

The fixed contact 9 of the relay KF18 is connected with the common terminal, the fixed contact 10 of the relay KF18 is connected with the common terminal 1, the fixed contact 11 of the relay KF18 is connected with the terminal B, the fixed contact 12 of the relay KF18 is connected with the terminal B1, the normally closed contact group of the relay KF18 is suspended, the normally open contact 5 of the relay KF18 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF18 is connected with the fixed contact 10 of the relay KF20, the normally open contact 7 of the relay KF18 is connected with the fixed contact 9 of the relay KF21, and the normally open contact 8 of the relay KF18 is connected with the fixed contact 10 of the relay KF 21;

the fixed contact 11 of the relay KF20 is connected with a DI/O module trigger voltage, the fixed contact 12 of the relay KF20 is suspended, the normally closed contact 1 of the relay KF20 is connected with a digital multimeter Vs+, the normally closed contact 2 of the relay KF20 is connected with a digital multimeter Ex+, the normally open contacts 5 and 6 of the relay KF20 are connected with a voltage-withstand insulation tester V+, the normally open contact 7 of the relay KF20 is used for outputting the DI/O module trigger voltage, the DI/O module trigger voltage is used for triggering the DI/O module, and the industrial personal computer detects that the DI/O module is triggered and then carries out high-voltage warning;

The fixed contact 11 and the fixed contact 12 of the relay KF21 are suspended, the normally closed contact 1 of the relay KF21 is connected with a digital multimeter Vs-, the normally closed contact 2 of the relay KF21 is connected with a digital multimeter Ex-, the normally open contact 5 and the normally open contact 6 of the relay KF21 are connected with a withstand voltage insulation tester V+, and the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF21 are suspended.

Further, the primary relay further comprises a relay KF33; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the relay KF33 to be powered on and powered off;

the fixed contact 9 of the relay KF33 is connected with the end A1, the fixed contact 10 of the relay KF33 is connected with the end A, the normally open contact 5 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF20, the normally open contact 6 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF33 are suspended;

further, the primary relay further comprises a relay KF35; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the on and off of the relay KF35;

The fixed contact 9 of the relay KF35 is connected with the common end, the fixed contact 10 of the relay KF35 is connected with the common end 1, the normally open contact 5 of the relay KF35 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF35 are suspended.

Further, the primary relay further comprises a relay KF37; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the on and off of the relay KF37;

the fixed contact 9 of the relay KF37 is connected with the end B, the fixed contact 10 of the relay KF37 is connected with the end B1, the normally open contact 5 of the relay KF37 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF37 are suspended.

Further, the primary relay further includes a relay KF39; the photoelectric coupler matrix also comprises a photoelectric coupler for controlling the on and off of the relay KF39;

The fixed contact 9 of the relay KF39 is connected with the end A, the fixed contact 10 of the relay KF39 is connected with the common end, the normally open contact 5 of the relay KF39 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF39 are suspended.

Further, the primary relay further comprises a relay KF41; the photoelectric coupler matrix also comprises a photoelectric coupler for controlling the on and off of the relay KF 39;

the fixed contact 9 of the relay KF41 is connected with the common 1 end, the fixed contact 10 of the relay KF41 is connected with the end B, the normally open contact 5 of the relay KF41 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF41 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF41 are suspended.

Further, the DI/O module trigger voltage is +5V.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the electromagnetic valve electrical property full-automatic detection device, the internal relay matrix is controlled to switch through the industrial personal computer, so that the switching of different test items of the same tested valve can be realized, the tested valve and the device can be clamped by a cable only once, and the tests of coil resistance, on-resistance, insulation resistance, electric strength, pull-in voltage (no-load and loaded), release current (no-load and loaded), maintenance voltage (no-load and loaded), response time (no-load and loaded) and coil temperature rise inspection can be completed, so that the work of indirect line changing of different test items is eliminated, and only 1 tester can complete the test, so that the error rate of human operation reasons is effectively reduced, and the test efficiency and quality are improved.

2. The electromagnetic valve electrical property full-automatic detection device can be widely applied to various types of valves, including two-wire electromagnetic valves, four-wire common "+" self-locking valves, four-wire common "-" self-locking valves, seven-wire common "+" self-locking valves and seven-wire common "-" self-locking valves.

3. The electromagnetic valve electrical property full-automatic detection device is safe and reliable, and comprises the following specific components:

The design of the relay matrix is divided into three stages, and the three stages are divided according to the test types for controlling different electrical properties. The relay connected with the quick-plug-in clamping terminal is called a first-stage relay, and the first-stage relay mainly performs a protection function and plays an isolation protection role on an operator and a test device; all the wiring is at a normally open contact, and when the relay is powered off, the relay is ensured not to output outwards; when different types of electromagnetic valve tests are carried out, the terminals of the tests which are idle are ensured to be completely isolated and have no output. The output end of the first-stage relay is connected to the quick-plug terminal. The input end is only connected with the normally-open contact, and the normally-closed contact is suspended. The output end of the second-stage relay is connected with the normally open contact of the first-stage relay, and the normally closed contact of the second-stage relay is connected with the output end of the electromagnetic valve voltage and current acquisition module and is used for conducting pull-in voltage (no-load and load), release current (no-load and load), maintenance voltage (no-load and load), response time (no-load and load) tests and the like of the tested product.

The normally open contact of the second-stage relay is connected with the output end of the third-stage relay. The normally closed contact of the third-stage relay is connected with a digital multimeter, and the coil resistance, the on-resistance and the like of the tested product are tested by adopting a four-wire resistance testing mode. The normally open contact of the third-stage relay is connected with the positive end output of the voltage-withstand insulation tester, and a pair of feedback contacts of the voltage-withstand insulation tester during working are connected to the data acquisition equipment and are used as high-voltage conduction warning signals to be displayed in the test process; the negative end output of the withstand voltage insulation tester is connected to the quick-plug clamping terminals of the shell and the valve body through the relay respectively.

4. The electromagnetic valve electrical property full-automatic detection device of the invention, under the condition of meeting each test and guaranteeing safety and reliability, the designed relay matrix is simplest, and is represented in:

through the switching of the internal relay matrix, the electromagnetic valve and the self-locking valve can be selectively switched, the switching test of the common '+' valve and the common '-' valve can be carried out on the self-locking valve, the time-sharing multiplexing of the high-voltage signal and the weak-current signal by the relay and the cable in the cabinet can be realized, the test items of the electromagnetic valve and the different lead valves of the self-locking valve can be completed, and the cost of the test device is reduced.

If the electromagnetic valve electric performance test is performed, the relays KF4, KF7 and KF10 are required to be connected when the electromagnetic valve withstand voltage insulation test is performed, and the electromagnetic valves KF4, KF6 and KF7 are required to be connected when the electromagnetic valve coil resistance test is performed; in the two tests, the relays KF4 and KF7 and the cable thereof have the function of time-sharing multiplexing of the high-voltage signals and the weak-current signals.

Drawings

FIG. 1 is a schematic diagram of a fully automated electromagnetic valve electrical property detection apparatus of the present invention;

FIG. 2 is a schematic diagram of a two-wire solenoid valve and a detection device;

FIG. 3 is a schematic diagram of a four-wire solenoid valve and a detection device;

FIG. 4 is a schematic diagram of a four-wire system common "+" self-locking valve and detection device clamping;

FIG. 5 is a schematic diagram of a four-wire system co-valve with a detection device;

FIG. 6 is a schematic diagram of a six-wire system common "+" self-locking valve and detection device clamping;

FIG. 7 is a schematic diagram of a six-wire system common "" self-locking valve and detection device clamping;

FIG. 8 is a schematic diagram of a relay matrix design of the present invention;

FIG. 9 is a schematic diagram of a relay matrix wiring of the present invention (1);

FIG. 10 is a schematic diagram (2) of the relay matrix wiring of the present invention;

FIG. 11 is a flow chart of the test of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to fig. 1-11.

As shown in FIG. 1, the electromagnetic valve electric performance full-automatic detection device comprises an industrial personal computer, a data acquisition box, a programmable control linear power supply, a voltage and current acquisition module, a switching power supply, a withstand voltage insulation tester, a digital multimeter, a photoelectric coupler matrix, a relay matrix and clamping terminals; the data acquisition machine box comprises an AI data acquisition module, an AO output module and a DI/O module; the industrial personal computer is connected with the programmable control linear power supply through the AO output module and is used for enabling the programmable control linear power supply to generate voltage for the action of the electromagnetic valve to be tested; the programmable control linear power supply is connected with the relay matrix through the voltage and current acquisition module and supplies power to the solenoid valve to be tested; the voltage and current acquisition module acquires the output voltage of the programmable control linear power supply and the current value of the electromagnetic valve to be tested under the power supply voltage, and feeds the output voltage and the current value back to the industrial personal computer through the AI data acquisition module; the switching power supply is used for supplying power to the voltage and current acquisition module and the AI data acquisition module; the voltage-withstand insulation tester and the digital multi-purpose meter are connected with the industrial personal computer, and the industrial personal computer controls and displays the voltage-withstand insulation tester and the digital multi-purpose meter; the photoelectric coupler matrix comprises a plurality of photoelectric couplers for controlling the on and off of each relay in the relay matrix; the industrial personal computer controls the switching value of each photoelectric coupler in the photoelectric coupler matrix through the DI/O module.

As shown in fig. 2-7, the electromagnetic valve electrical property automatic detection device and the product connection clamping terminals are divided into three groups; the first group of quick-connect clamping terminals are specially designed for solenoid valve test, and are provided with four wiring terminals, namely an A+ terminal, a B+ terminal, a C-terminal and a D-terminal, wherein the A+ terminal, the B+ terminal, the C-terminal and the D-terminal are respectively correspondingly connected with a contact 1, a contact 2, a contact 3 and a contact 4 of the 4-core solenoid valve, and wiring is shown in figure 4; the second group of quick-insert clamping terminals comprise two wiring terminals of a shell wiring terminal and a valve body wiring terminal, and are used as common terminals for pressure resistance and insulation test of a 4-core electromagnetic valve and a 7-core self-locking valve product; the third group of quick-connect clamping terminals are specially designed for self-locking valve test, and are respectively A1 end, A end, common 1 end, B end and B1 end, and the six connecting terminals are respectively and correspondingly connected with a contact 1, a contact 2, a contact 3, a contact 4, a contact 5 and a contact 6 of the 7-core self-locking valve.

The design principle of the relay matrix is shown in fig. 8, the design of the relay matrix is divided into three stages, and the three stages are divided according to the test types for controlling different electrical properties. The relay connected with the clamping terminal is called a first-stage relay, and the first-stage relay mainly performs a protection function and plays an isolation protection role on an operator and a test device; all the wiring is at a normally open contact, and when the relay is powered off, the relay is ensured not to output outwards; when different types of electromagnetic valve tests are carried out, the terminals of the tests which are idle are ensured to be completely isolated and have no output. The output end of the first-stage relay is connected to the cabinet inner end of the quick-plug terminal. The input end is only connected with the normally-open contact, and the normally-closed contact is suspended.

The output end of the second-stage relay is connected with the normally open contact of the first-stage relay, and the normally closed contact of the second-stage relay is connected with the acquisition output end of the electromagnetic valve circuit and is used for conducting attraction voltage (no-load and load), release current (no-load and load), maintenance voltage (no-load and load), response time (no-load and load) tests and the like of the tested product. The normally open contact of the second-stage relay is connected with the output end of the third-stage relay.

The normally closed contact of the third-stage relay is connected with a digital multimeter, and the coil resistance, the on-resistance and the like of the tested product are tested by adopting a four-wire resistance testing mode. The normally open contact of the third-stage relay is connected with the positive end output of the voltage-withstand insulation tester, and a pair of feedback contacts of the voltage-withstand insulation tester during working are connected to the data acquisition equipment and are used as high-voltage conduction warning signals to be displayed in the test process; the negative end output of the withstand voltage insulation tester is connected to the quick-plug clamping terminals of the shell and the valve body through the relay respectively.

As shown in fig. 9 to 10, the relay matrix of the present invention includes a primary relay, a secondary relay, and a tertiary relay, the primary relay including a relay KF25, a relay KF4, a relay KF29, a relay KF31, a relay KF12, a relay KF16, a relay KF33, a relay KF35, a relay KF37, a relay KF39, a relay KF41, and a relay KF18; the secondary relay comprises a relay KF6, a relay KF7, a relay KF43, a relay KF27 and a relay KF14; the three-stage relay comprises a relay KF9, a relay KF10, a relay KF20 and a relay KF21. A relay KF23 is also included. Each relay comprises a fixed contact set, a normally closed contact set and a normally open contact set, wherein the fixed contact set comprises a fixed contact 9, a fixed contact 10, a fixed contact 11 and a fixed contact 12, the normally closed contact set comprises a normally closed contact 1, a normally closed contact 2, a normally closed contact 3 and a normally closed contact 4, the normally open contact comprises a normally open contact 5, a normally open contact 6, a normally open contact 7 and a normally open contact 8, the fixed contact 9 corresponds to the normally closed contact 1 and the normally open contact 5, the fixed contact 10 corresponds to the normally closed contact 2 and the normally open contact 6, the fixed contact 11 corresponds to the normally closed contact 3 and the normally open contact 7, and the fixed contact 12 corresponds to the normally closed contact 4 and the normally open contact 8.

The fixed contact 9, the fixed contact 10, the fixed contact 11 and the fixed contact 12 of the relay KF25 are respectively and correspondingly connected with an A+ terminal, a B+ terminal, a C-terminal and a D-terminal of the clamping wiring terminal of the electromagnetic valve in sequence; the normally closed contact 1 of the relay KF25 is connected with the normally open contact 6 and the fixed contact 9 of the relay KF 4; the normally closed contact 4 of the relay KF25 is connected with the normally open contact 7 and the fixed contact 12 of the relay KF 4; the normally closed contact 2, the normally closed contact 3, the normally open contact 5 and the normally open contact 8 of the relay KF25 are suspended. The fixed contact 10 of the relay KF4 is connected with the B+ terminal, the fixed contact 11 of the relay KF4 is connected with the C-terminal of the electromagnetic valve clamping wiring terminal, and the normally closed contact set of the relay KF4 is suspended; the normally open contact 5 and the normally open contact 6 of the relay KF4 are connected with the fixed contact 9 and the fixed contact 10 of the relay KF6, the normally open contact 7 is connected with the fixed contact 9 of the relay KF7, and the normally open contact 8 is connected with the fixed contact 10 of the relay KF 7. The fixed contact 9 of the relay KF29 is connected with the fixed contact 9 of the relay KF 4; the fixed contact 10 of the relay KF29 is connected with the fixed contact 10 of the relay KF 4; the fixed contact 11 and the fixed contact 12 of the relay KF29 are suspended; the normally closed contact group of the relay KF29 is suspended; the normally open contact 5 of the relay KF29 is connected with the fixed contact 9 of the relay KF6, the normally open contact 6 of the relay KF29 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF7, and the normally open contact 7 and the normally open contact 8 of the relay KF29 are suspended. The fixed contact 9 of the relay KF31 is connected with the fixed contact 11 of the relay KF 4; the fixed contact 10 of the relay KF31 is connected with the fixed contact 12 of the relay KF 4; the fixed contact 11 and the fixed contact 12 of the relay KF31 are suspended; the normally closed contact group of the relay KF31 is suspended; the normally open contact 5 of the relay KF31 is connected with the fixed contact 9 of the relay KF6, the normally open contact 6 of the relay KF31 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF7, and the normally open contact 7 and the normally open contact 8 of the relay KF31 are suspended. The fixed contact 11 of the relay KF6 is connected with +5V voltage, the fixed contact 12 of the relay KF6 is suspended, the normally closed contact 1 of the relay KF6 is connected with the V+ end of the voltage and current acquisition module, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4 and the normally open contact 8 of the relay KF6 are suspended, the normally open contact 5 of the relay KF6 is connected with the fixed contact 9 of the relay KF9 and the fixed contact 9 of the relay KF10, and the normally open contact 6 of the relay KF6 is connected with the fixed contact 10 of the relay KF9 and the fixed contact 10 of the relay KF 10; the normally open contact 7 of the relay KF6 is connected to the fixed contact 11 of the relay KF 9. The fixed contact 11 and the fixed contact 12 of the relay KF7 are suspended, the normally closed contact 1 of the relay KF7 is connected with the V-end of the voltage and current acquisition module, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF7 are suspended, the normally open contact 5 of the relay KF7 is connected with the fixed contact 9 of the relay KF9, the fixed contact 9 of the relay KF10 and the fixed contact 9 of the relay KF43, and the normally open contact 6 of the relay KF7 is connected with the fixed contact 10 of the relay KF9, the fixed contact 10 of the relay KF10 and the fixed contact 10 of the relay KF 43. The fixed contact 9 of the relay KF43 is connected with the normally open contact 7, and the fixed contact 10 of the relay KF43 is connected with the fixed contact 11; the normally closed contact group, the normally open contact 5, the normally open contact 6 and the normally open contact 8 of the relay KF43 are suspended. The normally closed contact 1 of the relay KF9 is connected with the Vs+ end of the digital multimeter, the normally closed contact 2 of the relay KF9 is connected with the Ex+ end of the digital multimeter, the normally closed contact 3, the normally closed contact 4, the normally open contact 8 and the fixed contact 12 of the relay KF9 are suspended, the normally open contact 5 of the relay KF9 and the normally open contact 6 of the relay KF9 are connected with the V+ end of the withstand voltage insulation tester, the normally open contact 7 of the relay KF9 is used for outputting +5V voltage, the +5V voltage triggers the DI/O module, and the industrial personal computer detects that the DI/O module is triggered and then carries out high voltage warning. The fixed contact 11 and the fixed contact 12 of the relay KF10 are suspended, the normally closed contact 1 of the relay KF10 is connected with the Vs-end of the digital multimeter, the normally closed contact 2 of the relay KF10 is connected with the Ex-end of the digital multimeter, and the normally open contact 5 of the relay KF10 and the normally open contact 6 of the relay KF10 are connected with the V+ end of the withstand voltage insulation tester. Normally closed contact 1 of relay KF23 is connected with casing binding post, and normally open contact 5 of relay KF23 is connected with valve body binding post, and fixed contact 9 of relay KF23 is connected with withstand voltage insulation tester's V-end, and other contacts are unsettled. The fixed contact 9 of the relay KF12 is connected with the end A, the fixed contact 10 of the relay KF12 is connected with the common end, the fixed contact 11 of the relay KF12 is connected with the common end 1, the fixed contact 12 of the relay KF12 is connected with the end B, the normally closed contact group of the relay KF12 is suspended, the normally open contact 5 of the relay KF12 is connected with the fixed contact 9 of the relay KF27, the normally open contact 6 of the relay KF12 is connected with the fixed contact 10 of the relay KF27, the normally open contact 7 of the relay KF12 is connected with the fixed contact 11 of the relay KF27, and the normally open contact 8 of the relay KF12 is connected with the fixed contact 12 of the relay KF 27; the normally closed contact 1 of the relay KF27 is connected with the fixed contact 9 of the relay KF14, the normally closed contact 2 of the relay KF27 is connected with the fixed contact 10 of the relay KF14, the normally closed contact 3 of the relay KF27 is connected with the fixed contact 11 of the relay KF14, the normally closed contact 4 of the relay KF27 is connected with the fixed contact 12 of the relay KF14, and the normally open contact group of the relay KF27 is suspended; the normally-closed contact 1, the normally-open contact 6, the normally-open contact 7 and the normally-closed contact 4 of the relay KF14 are all connected with the V-end of the voltage and current acquisition module, and the normally-open contact 5, the normally-closed contact 2, the normally-closed contact 3 and the normally-open contact 8 of the relay KF14 are all connected with the V+ end of the voltage and current acquisition module. The fixed contact 9 of the relay KF16 is connected with the end A1, the fixed contact 10 of the relay KF16 is connected with the end A, the fixed contact 11 of the relay KF16 is connected with the common end, and the fixed contact 12 of the relay KF16 is connected with the common end 1; the normally closed contact group of the relay KF16 is suspended, the normally open contact 5 of the relay KF16 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF16 is connected with the fixed contact 10 of the relay KF20, the normally open contact 7 of the relay KF16 is connected with the fixed contact 9 of the relay KF21, and the normally open contact 8 of the relay KF16 is connected with the fixed contact 10 of the relay KF 21. The fixed contact 9 of the relay KF18 is connected with the common terminal, the fixed contact 10 of the relay KF18 is connected with the common terminal 1, the fixed contact 11 of the relay KF18 is connected with the terminal B, the fixed contact 12 of the relay KF18 is connected with the terminal B1, the normally closed contact group of the relay KF18 is suspended, the normally open contact 5 of the relay KF18 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF18 is connected with the fixed contact 10 of the relay KF20, the normally open contact 7 of the relay KF18 is connected with the fixed contact 9 of the relay KF21, and the normally open contact 8 of the relay KF18 is connected with the fixed contact 10 of the relay KF 21. The fixed contact 11 of the relay KF20 is connected with +5V voltage, the fixed contact 12 of the relay KF20 is suspended, the normally closed contact 1 of the relay KF20 is connected with the digital multimeter Vs+, the normally closed contact 2 of the relay KF20 is connected with the digital multimeter Ex+, the normally open contact 5 and the normally open contact 6 of the relay KF20 are connected with the withstand voltage insulation tester V+, the normally open contact 7 of the relay KF20 is used for outputting +5V voltage, the +5V voltage is used for triggering the DI/O module, and the industrial personal computer carries out high-voltage warning after detecting that the DI/O module is triggered. The fixed contact 11 and the fixed contact 12 of the relay KF21 are suspended, the normally closed contact 1 of the relay KF21 is connected with a digital multimeter Vs-, the normally closed contact 2 of the relay KF21 is connected with a digital multimeter Ex-, the normally open contact 5 and the normally open contact 6 of the relay KF21 are connected with a withstand voltage insulation tester V+, and the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF21 are suspended. The fixed contact 9 of the relay KF33 is connected with the end A1, the fixed contact 10 of the relay KF33 is connected with the end A, the normally open contact 5 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF20, the normally open contact 6 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF33 are suspended. The fixed contact 9 of the relay KF35 is connected with the common end, the fixed contact 10 of the relay KF35 is connected with the common end 1, the normally open contact 5 of the relay KF35 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF35 are suspended. The fixed contact 9 of the relay KF37 is connected with the end B, the fixed contact 10 of the relay KF37 is connected with the end B1, the normally open contact 5 of the relay KF37 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF37 are suspended. The fixed contact 9 of the relay KF39 is connected with the end A, the fixed contact 10 of the relay KF39 is connected with the common end, the normally open contact 5 of the relay KF39 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF35 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF39 are suspended. The fixed contact 9 of the relay KF41 is connected with the common 1 end, the fixed contact 10 of the relay KF41 is connected with the B end, the normally open contact 5 of the relay KF41 is connected with the fixed contact 9 of the relay KF20, the normally open contact 6 of the relay KF41 is connected with the fixed contact 9 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF41 are suspended.

As shown in fig. 1, the photoelectric coupler matrix includes a KF3 optocoupler controlled by a relay KF4, a KF24 optocoupler controlled by a relay KF25, a KF5 optocoupler controlled by a relay KF6 and a relay KF7, a KF28 optocoupler controlled by a relay KF29, a KF8 optocoupler controlled by a relay KF9 and a relay KF10, a KF30 optocoupler controlled by a relay KF31, a KF15 optocoupler controlled by a relay KF16, a KF11 optocoupler controlled by a relay KF12, a KF34 optocoupler controlled by a relay KF35, a KF38 optocoupler controlled by a relay KF39, a KF17 optocoupler controlled by a relay KF37, a KF19 optocoupler controlled by a relay KF20 and a relay KF21, a KF42 optocoupler controlled by a relay KF43, a relay KF26, a relay KF13 optocoupler controlled by a relay KF27, a relay KF14 controlled by a relay KF27, a relay optocoupler 13 controlled by a relay KF 13.

According to different test items, the switching value of the optocoupler TTL is selectively given to control the relay contacts, and finally the combined switching function of the relay matrix is realized, wherein the specific control logic is as follows:

1. solenoid valve test

1) KF3 optocoupler high level is tested by four-wire electromagnetic valve, and low level breaks all contacts.

a) And the high level of the KF3 optocoupler and the low level of the KF5 optocoupler and the KF8 optocoupler are kept, and the voltage and current acquisition module is connected with the contact 1, the contact 2, the contact 3 and the contact 4 of the electromagnetic valve to be tested through the relay matrix. Performing pull-in voltage (no-load and load), release current (no-load and load), maintenance voltage (no-load and load) and response time (no-load and load) tests;

b) Maintaining the high level of the KF3 optocoupler and the high level of the KF5 optocoupler:

and i, performing four-wire resistance test on the low level of the KF8 optocoupler, wherein the digital multimeter is connected with the contact 1, the contact 2, the contact 3 and the contact 4 of the electromagnetic valve to be tested through a relay matrix.

And ii, performing a voltage-resistant insulation test on the high level of the KF8 optocoupler, wherein the voltage-resistant insulation tester is connected with the contact 1, the contact 2, the contact 3 and the contact 4 of the electromagnetic valve to be tested through a relay matrix. When the device outputs high voltage to the outside, the device has a high-voltage signal conduction feedback function.

And iii, carrying out high-level optical coupler KF28 to conduct the conduction test of the four-wire electromagnetic valve contacts 1 and 2. The digital multimeter is connected with the contact 1 and the contact 2 of the electromagnetic valve to be tested through the relay matrix.

Iv, KF30 optocoupler high level is used for conducting test of four-wire electromagnetic valve contacts 3 and 4, and the digital multimeter is connected with the contacts 3 and 4 of the electromagnetic valve to be tested through a relay matrix.

2) And the high level of the KF3 optocoupler is kept, the high level of the KF24 optocoupler is tested by a two-wire electromagnetic valve, and the wiring points are respectively at B+ and C-, and all contacts are disconnected at the low level during the test.

a) Holding the high level of the KF3 optocoupler, the high level of the KF24 optocoupler and the low level of the KF5 optocoupler and the KF8 optocoupler for carrying out pull-in voltage (no-load and load), release current (no-load and load), maintenance voltage (no-load and load) and response time (no-load and load) tests; the voltage and current acquisition module is connected with two contacts of the electromagnetic valve to be tested through the relay matrix.

b) Meanwhile, the high level of the KF3 optocoupler is maintained, the high level of the KF24 optocoupler is maintained, and the high level of the KF5 optocoupler is maintained:

i, performing a resistance test on the low level of the KF8 optocoupler; the digital multimeter is connected with two contacts of the electromagnetic valve to be tested through a relay matrix.

Ii, the high-level voltage-withstand insulation test is carried out on the KF8 optocoupler, and the device has a high-voltage signal conduction feedback function when outputting high voltage outwards. The withstand voltage insulation tester is connected with two contacts of the electromagnetic valve to be tested through a relay matrix.

2. Self-locking valve test

1) When KF11 optocoupler is high level:

a) KF13 optocoupler low level is used for carrying out a self-locking valve total "+" test;

performing a coil A test on the low level of the KF26 optocoupler, and performing a pull-in voltage (no-load and load), a release current (no-load and load), a maintenance voltage (no-load and load) and a response time (no-load and load) test; the voltage and current acquisition module is connected with a contact 1, a contact 2, a contact 3 and a contact 4 of the electromagnetic valve to be tested through the relay matrix.

And ii, carrying out B coil tests on high level of the KF26 optocoupler, and carrying out pull-in voltage (no-load and loaded), release current (no-load and loaded), maintenance voltage (no-load and loaded) and response time (no-load and loaded) tests. The voltage and current acquisition module is connected with a contact 3, a contact 4, a contact 5 and a contact 6 of the electromagnetic valve to be tested through the relay matrix.

b) KF13 optocoupler high level is used as a self-locking valve common-negative test;

C) And the KF11 optocoupler is at a low level, and all external outputs are disconnected.

2) KF15 optocoupler high level, KF17 optocoupler low level:

I, performing a coil resistance test on a KF19 optocoupler low level; the digital multimeter is connected with a contact 1, a contact 2, a contact 3 and a contact 4 of the electromagnetic valve to be tested through a relay matrix.

Ii, the high level of the KF19 optocoupler is used for performing an A coil electricity resistance test, and the equipment has a high-voltage signal conduction feedback function when outputting high voltage outwards; the withstand voltage insulation tester is connected with a contact 1, a contact 2, a contact 3 and a contact 4 of the electromagnetic valve to be tested through a relay matrix.

3) KF15 optocoupler low level, KF17 optocoupler high level:

i, performing a B coil resistance test on a low level of the KF19 optocoupler; the digital multimeter is connected with a contact 3, a contact 4, a contact 5 and a contact 6 of the electromagnetic valve to be tested through a relay matrix.

Ii, the high level of the KF19 optocoupler is used for a B coil electricity resistance test, and the equipment has a high-voltage signal conduction feedback function when outputting high voltage outwards; the withstand voltage insulation tester is connected with a contact 3, a contact 4, a contact 5 and a contact 6 of the electromagnetic valve to be tested through a relay matrix.

4) The KF15 optocoupler and the KF17 optocoupler are low-level, and all external outputs are disconnected;

5) And conducting tests of six-wire self-locking valve contacts 1 and 2 are carried out on the high level of the KF32 optocoupler. The digital multimeter is connected with the contacts 1 and 2 of the electromagnetic valve to be tested through the relay matrix.

6) And conducting tests of six-wire self-locking valve contacts 3 and 4 are carried out by KF34 optocoupler high level. The digital multimeter is connected with the contact 3 and the contact 4 of the electromagnetic valve to be tested through a relay matrix.

7) And conducting tests of six-wire self-locking valve contacts 5 and 6 are carried out on the high level of the KF36 optocoupler. The digital multimeter is connected with the contact 5 and the contact 6 of the electromagnetic valve to be tested through a relay matrix.

8) The KF38 optocoupler high level is used for conducting test of four-wire system self-locking valve contacts 1 and 2, and the wiring points are at the end A and the common end.

9) The KF40 optocoupler high level is used for conducting test of four-wire system self-locking valve contacts 3 and 4, and the wiring points are at the common 1 end and the B end.

10 The low level of the KF22 optocoupler is used for a shell test, and the high level of the KF22 optocoupler is used for a valve body test.

11 The KF42 optocoupler is subjected to digital multimeter residue group zero clearing when in high level, and all contacts are disconnected by low level.

In the double-coil self-locking valve relay matrix design, more common "+" and common "-" switching relays and "A" and "B" coil switching relays are used than a single-coil electromagnetic valve.

The electromagnetic valve electrical property full-automatic detection device can select manual test or automatic test, and can freely configure the types and the test sequences of required test items according to the needs during the automatic test, wherein the items needing to be subjected to the manual test can be inserted into the automatic test items. When the same solenoid valve realizes the same test item, the automatic test and the manual test are the same in hardware configuration and DI/O channel selection, and the type and sequence of the automatic test selection item are only determined by the trigger channel sequence with different software configuration.

The electromagnetic valve electrical property automatic detection device provided by the invention is used for avoiding logic control confusion of a relay matrix and only allowing one test item to be carried out at the same time. The emergency stop hardware button is designed, and when necessary, the emergency stop button is pressed down, so that the instrument in the cabinet can be powered off. When the high-voltage signal is output, a hardware real-time feedback signal is designed to remind operators that the equipment is in an output high-voltage state. Four-contact relays are selected for use in the project, one path of contact is reserved for each relay connected with the withstand voltage insulation tester during design, the relay is used as feedback for realizing the connection of all relays of an output channel of the withstand voltage insulation tester, +5V is supplied outside one path of contact of the most-far-end relay and used as a feedback voltage trigger signal, when all the relays are connected, DI signals of a data acquisition system are triggered by the voltage of the far-end +5V, high-voltage connection feedback is realized, and a high-voltage connection indicator lamp form is designed through upper software to warn testers. If the test site encounters an irresistible factor, a hardware emergency stop button is directly shot, and the power supply in the system cabinet is disconnected.

The upper computer software of the electromagnetic valve electric performance automatic detection device has all test data record storage, can inquire and print historical data, appends subsequent test data and automatically generates a data report. The electromagnetic valve electric performance full-automatic detection device selects a test function through upper software, manual control and full-automatic control can be performed, manual control of test items can be still set in full-automatic control, the test flow sequence is adjustable, the test items can be added or deleted as required, and a test flow chart of the electromagnetic valve electric performance full-automatic detection device is shown in fig. 11.

Claims

1. Electromagnetic valve electrical property full automatization detection device, its characterized in that: the device comprises an industrial personal computer, a data acquisition machine box, a programmable control linear power supply, a voltage and current acquisition module, a switching power supply, a withstand voltage insulation tester, a digital multimeter, a photoelectric coupler matrix, a relay matrix and an electromagnetic valve clamping wiring terminal;

2. The electromagnetic valve electrical property full-automatic detection apparatus according to claim 1, wherein:

the valve body also comprises a shell binding post and a valve body binding post;

3. The full-automatic detection device for electrical properties of electromagnetic valves according to claim 2, wherein:

the self-locking valve clamping terminal comprises an A1 end, an A end, a common 1 end, a B end and a B1 end;

4. The electromagnetic valve electrical property full-automatic detection apparatus according to claim 3, wherein:

the primary relay further comprises a relay KF16 and a relay KF18, and the tertiary relay further comprises a relay KF20 and a relay KF21; the photoelectric coupler matrix further comprises a plurality of photoelectric couplers for controlling the on and off of the relay KF16, the relay KF18, the relay KF20 and the relay KF21;

5. The full-automatic electromagnetic valve electrical property detection apparatus according to claim 4, wherein:

the primary relay further comprises a relay KF33; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the relay KF33 to be powered on and powered off;

the fixed contact 9 of the relay KF33 is connected with the end A1, the fixed contact 10 of the relay KF33 is connected with the end A, the normally open contact 5 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF20, the normally open contact 6 of the relay KF33 is connected with the fixed contact 9 and the fixed contact 10 of the relay KF21, and the fixed contact 11, the fixed contact 12, the normally closed contact 1, the normally closed contact 2, the normally closed contact 3, the normally closed contact 4, the normally open contact 7 and the normally open contact 8 of the relay KF33 are suspended.

6. The fully automated electromagnetic valve electrical property detection apparatus of claim 5, wherein:

the primary relay further comprises a relay KF35; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the on and off of the relay KF35;

7. The full-automatic electromagnetic valve electrical property detection apparatus according to claim 6, wherein:

the primary relay further comprises a relay KF37; the photoelectric coupler matrix further comprises a photoelectric coupler for controlling the on and off of the relay KF37;

8. The fully automated electromagnetic valve electrical property detection apparatus of claim 7, wherein:

the primary relay further comprises a relay KF39; the photoelectric coupler matrix also comprises a photoelectric coupler for controlling the on and off of the relay KF39;

9. The fully automated solenoid valve electrical property detection apparatus of claim 8, wherein:

the primary relay further comprises a relay KF41; the photoelectric coupler matrix also comprises a photoelectric coupler for controlling the on and off of the relay KF39;

10. The electromagnetic valve electrical property full-automatic detection apparatus according to claim 9, wherein:

the DI/O module trigger voltage is +5V.