Operation method of multifunctional test system of vacuum angle valve

Abstract

The embodiment of the invention discloses an operation method of a multifunctional test system of a vacuum angle valve. The multifunctional test system of the vacuum angle valve comprises a control module, a position sensing module, a pressure adjusting module and a negative pressure generating module. The operation method comprises the steps that position information of the position sensing module is obtained through the control module, the pressure of the gas control end or the pipeline inlet of the angle valve to be measured is adjusted through the pressure adjusting module, and the negative pressure of the pipeline outlet of the angle valve to be measured is adjusted through the negative pressure generating module. At least two of the stroke, the response time, the control pressure, the fatigue test and the withstand pressure of the to-be-tested angle valve are tested. According to the operation method provided by the embodiment of the invention, multiple tests can be performed on the to-be-tested angle valve so as to meet the scene requirements of frequent tests and debugging in the research and development process of the pneumatic angle valve.

Description

Technical Field

[0001] The present application relates to the technical field of pneumatic angle valve testing, and in particular to an operating method of a multifunctional testing system for a vacuum angle valve. Background Art

[0002] In order to meet the needs of actual application scenarios, it is necessary to have strict technical requirements for the performance parameters of pneumatic angle valves. Therefore, during the design and development of new pneumatic angle valves, the performance parameters such as the movement stroke, response time, control pressure, tolerance pressure, and service life of the pneumatic angle valves are usually tested and tested. Through product testing and multiple iterative optimizations during the research and development process to achieve the expected specifications, it provides a strong guarantee for the qualified industrial production of the product.

[0003] Most of the existing commonly used pneumatic angle valve performance testing equipment are single-function devices, which can only test a certain specification performance. If multiple performance parameters need to be tested, multiple test equipment must be purchased for the test items, which requires a dedicated laboratory to install, which is expensive and occupies a large space. Summary of the invention

[0004] The embodiment of the present application provides an operating method of a multifunctional testing system for a vacuum angle valve, which can perform multiple tests on the angle valve to be tested. The multifunctional testing system platform for the vacuum angle valve occupies little space.

[0005] The embodiment of the present application provides an operation method of a multifunctional testing system for a vacuum angle valve, wherein the multifunctional testing system for a vacuum angle valve comprises a control module, a position sensing module, a pressure regulating module and a negative pressure generating module, wherein the control module is electrically connected to the position sensing module, the pressure regulating module and the negative pressure generating module, the control module integrates timing and counting functions, and the control module can obtain the output pressure of the pressure regulating module; the position sensing module is arranged corresponding to the angle valve to be tested, and is used to sense the position of the actuator of the angle valve to be tested; the pressure regulating module is connected to the air control end and the pipeline inlet of the angle valve to be tested, and is used to adjust the pressure at the air control end or the pipeline inlet of the angle valve to be tested; the negative pressure generating module is connected to the pipeline outlet of the angle valve to be tested, and is used to adjust the negative pressure at the pipeline outlet of the angle valve to be tested;

[0006] The operating method includes: obtaining the position information of the position sensing module through the control module, using the pressure regulating module to adjust the pressure of the air control end or the pipeline inlet of the angle valve to be tested, and using the negative pressure generating module to adjust the negative pressure of the pipeline outlet of the angle valve to be tested, so as to test at least two of the stroke, response time, control pressure, fatigue test and tolerance pressure of the angle valve to be tested.

[0007] In some exemplary embodiments, if a stroke test is performed on the angle valve to be tested, the specific operation steps include:

[0008] Deflating the air control end of the angle valve to be tested so as to close the angle valve to be tested, and recording the closing position of the actuator of the angle valve to be tested through the position sensing module;

[0009] Supplying air to the air control end of the angle valve to be measured so as to open the angle valve to be measured, and recording the opening position of the actuator of the angle valve to be measured through the position sensing module;

[0010] The control module calculates the stroke of the angle valve to be measured according to the closing position and the opening position.

[0011] In some exemplary embodiments, if a stroke test is performed on the angle valve to be tested, the specific operation steps further include:

[0012] After the angle valve to be tested is closed for a first preset time, the closing position of the actuator of the angle valve to be tested is recorded by the position sensing module;

[0013] After the angle valve to be measured is opened for a second preset time, the opening position of the actuator of the angle valve to be measured is recorded by the position sensing module.

[0014] In some exemplary embodiments, if a response time test is performed on an angle valve to be tested, the specific operation steps include:

[0015] The control module sends an opening signal to open the angle valve to be tested and starts timing;

[0016] After the angle valve to be tested is fully opened, the position sensing module sends a fully opened signal, and the control module stops timing;

[0017] The control module calculates the opening response time of the angle valve to be tested according to the time difference between the opening signal and the opening position signal;

[0018] The control module sends a closing signal to close the angle valve to be tested and starts timing;

[0019] After the angle valve to be tested is fully closed, the position sensing module sends a fully closed signal, and the control module stops timing;

[0020] The control module calculates the closing response time of the angle valve to be tested according to the time difference between the closing signal and the closing position signal.

[0021] In some exemplary embodiments, if a response time test is performed on the angle valve to be tested, the step of:

[0022] Before the control module sends an opening signal to open the angle valve to be tested, an opening position and a closing position of the angle valve to be tested are set.

[0023] In some exemplary embodiments, the operating method further includes:

[0024] Select one of the following test items: stroke test, response time, control pressure, fatigue test and withstand pressure;

[0025] After setting the corresponding parameters of the selected test items, start the automatic test.

[0026] In some exemplary embodiments, the multifunctional test system of the vacuum angle valve further includes a pressure sensing module, and the pressure sensing module is electrically connected to the control module. If a control pressure test is performed on the angle valve to be tested, the specific operation steps include:

[0027] The pressure regulating module is controlled by the control module to gradually increase the air pressure value of the air control end of the angle valve to be tested;

[0028] If the position sensing module detects that the actuator of the angle valve to be tested is at the starting position, the control module records the air pressure value measured by the pressure sensing module at this time as the starting control pressure value;

[0029] The control module compares the startup control pressure value with a preset first pressure value to determine whether the startup control pressure value is normal;

[0030] If the position sensing module detects that the actuator of the angle valve to be tested is in the fully opened position, the control module records the air pressure value measured by the pressure sensing module at this time as the fully opened control pressure value;

[0031] The control module compares the opening position control pressure value with a preset second pressure value to determine whether the opening position control pressure value is normal.

[0032] In some exemplary embodiments, if a fatigue test is performed on the angle valve to be tested, the specific operation steps include:

[0033] The angle valve to be measured is repeatedly opened and closed, and the number of times the angle valve to be measured is opened and closed is recorded by the control module;

[0034] If the number of times the angle valve to be tested is opened or closed does not reach the first preset number, and the angle valve to be tested is damaged, the test is stopped, and it is determined that the angle valve to be tested has failed the fatigue test;

[0035] If the number of times the angle valve to be tested is opened and closed reaches the first preset number, the test is stopped and the performance of the angle valve to be tested is tested. If the test is qualified, it is determined that the angle valve to be tested has passed the fatigue test; if the test is unqualified, it is determined that the angle valve to be tested has not passed the fatigue test.

[0036] In some exemplary embodiments, if the number of times the angle valve to be tested is opened and closed reaches a second preset number, the test is paused and the performance of the angle valve to be tested is tested. If the test is qualified, the test is continued; if the test is unqualified, the test is stopped and it is determined that the angle valve to be tested has failed the fatigue test, and the second preset number of times is less than the first preset number of times.

[0037] In some exemplary embodiments, the multifunctional test system for the vacuum angle valve further includes a pressure sensing module, and the pressure sensing module is electrically connected to the control module. If a pressure resistance test is performed on the angle valve to be tested, the specific operation steps include:

[0038] Switch the air supply from the air control end of the angle valve to be measured to the air supply to the pipeline inlet of the angle valve to be measured;

[0039] The pipeline outlet of the angle valve to be measured is vacuumed by the negative pressure generating module;

[0040] The pressure regulating module is controlled by the control module to gradually increase the air pressure value at the pipeline inlet of the angle valve to be tested;

[0041] When the position sensing module detects that the actuator of the angle valve to be tested is located at the start position, the control module records the air pressure value measured by the pressure sensing module at this time as the withstand pressure value of the angle valve to be tested;

[0042] The control module compares the withstand pressure value with a preset third pressure value to determine whether the withstand pressure value is normal.

[0043] In some exemplary embodiments, when the angle valve to be tested is subjected to stroke, response time, control pressure or fatigue test, the negative pressure generating module is started to evacuate the pipe outlet of the angle valve to be tested, so that the pipe outlet of the angle valve to be tested is in a negative pressure state;

[0044] Alternatively, the negative pressure generating module is closed so that the outlet of the angle valve pipeline to be tested is in a normal pressure state.

[0045] Beneficial effects:

[0046] 1. The operating method of the embodiment of the present application can perform multiple tests on the angle valve to be tested to meet the scenario requirements of frequent testing and debugging during the development of pneumatic angle valves. Moreover, performing multiple tests on the angle valve to be tested can not only ensure its safety and reliability, but also improve its overall performance and scope of application, reduce maintenance costs, and extend its service life.

[0047] 2. The operating method of the embodiment of the present application can perform stroke test, response test, control pressure test and fatigue test on the angle valve to be tested, that is, the multifunctional test system of the vacuum angle valve integrates multiple performance test functions, and the multifunctional test system platform of the overall vacuum angle valve occupies little space. In different performance test processes, part of the pipelines and valves of the multifunctional test system of the vacuum angle valve of the embodiment of the present application can be reused, thereby saving pipelines and valves and reducing costs.

[0048] 3. The operating method of the embodiment of the present application can be tested automatically. Automated testing can ensure the accurate execution of the test process, avoid human omissions and errors, and improve the reliability of the test results. Moreover, automated testing can quickly execute a large number of test cases, thereby saving the time and workload of testers.

[0049] 4. Stroke test is an important means to ensure that the angle valve to be tested meets relevant standards and specifications. Through testing, it can be verified whether the angle valve to be tested meets the design requirements and safety standards. Through stroke test, the working parameters of the pneumatic angle valve can also be optimized, unnecessary energy consumption and medium waste can be reduced, thereby improving production efficiency.

[0050] 5. By setting the position measurement after the first preset time, it is possible to ensure that the angle valve to be tested is closed and remains stable, thereby improving the accuracy of the stroke test. By setting the position measurement after the second preset time, it is possible to ensure that the angle valve to be tested is opened and remains stable, thereby improving the accuracy of the stroke test.

[0051] 6. By verifying the response speed of the angle valve to be tested, it is ensured that it can respond quickly and avoid safety accidents caused by slow response. The response time test can help find problems in the design and manufacturing process. By optimizing the design and improving the manufacturing process, frequent repairs caused by design defects can be reduced, thereby extending the service life of the angle valve to be tested. Through the response time test, it can be verified whether the angle valve to be tested meets the relevant standards and regulatory requirements to ensure product compliance.

[0052] 7. By controlling the pressure test on the angle valve to be tested, that is, by adjusting the air pressure, the opening of the valve can be accurately controlled to achieve higher precision and accuracy, and problems in the design and manufacturing process can be discovered to optimize product performance.

[0053] 8. Fatigue testing can simulate the long-term operation of the angle valve under actual working conditions, evaluate its consistency and reliability after multiple operations, and verify the durability and stability of the valve. Through fatigue testing, the performance stability of the angle valve under long-term use can be evaluated, potential failure risks can be discovered in advance, and it can be ensured that the angle valve under extreme conditions will not leak or fail, thus ensuring the safety of personnel and equipment.

[0054] 9. The pressure test can verify the structural integrity and sealing performance of the angle valve under high pressure environment, ensuring that the angle valve will not leak or fail under extreme conditions, thereby ensuring the safety of personnel and equipment. Through the pressure test, the working ability of the angle valve under a specific pressure can be evaluated, so as to predict its durability and service life in long-term operation, and ensure that the valve remains stable in long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 A block diagram of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0057] Figure 2 A schematic diagram of the gas circuit of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0058] Figure 3 A block diagram of a multifunctional testing system for a vacuum angle valve in another embodiment of the present application;

[0059] Figure 4 A schematic diagram of the steps of an operation method of a multifunctional testing system for a vacuum angle valve in an embodiment of the present application;

[0060] Figure 5 A schematic diagram of the steps of an operating method of a multifunctional testing system for a vacuum angle valve in another embodiment of the present application;

[0061] Figure 6 A schematic diagram of the steps of a stroke test of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0062] Figure 7 A schematic diagram of the steps of a stroke test of a multifunctional testing system for a vacuum angle valve in another embodiment of the present application;

[0063] Figure 8 A schematic diagram of the steps of a response time test of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0064] Fig. 9 A schematic diagram of the steps of a response time test of a multifunctional testing system for a vacuum angle valve in another embodiment of the present application;

[0065] Fig.10A schematic diagram of the steps of a control pressure test of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0066] Fig.11 A schematic diagram of the steps of a fatigue test of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application;

[0067] Fig.12 A schematic diagram of the steps of a pressure resistance test of a multifunctional testing system for a vacuum angle valve in one embodiment of the present application.

[0068] Explanation of the reference numerals in the accompanying drawings: 100, multifunctional test system for vacuum angle valve; 110, pressure regulating module; 120, test passage; 121, first electrically-controlled valve; 122, second electrically-controlled valve; 123, pressure sensing module; 124, position sensing module; 1241, laser sensor; 1242, Hall sensor; 125, third electrically-controlled valve; 126, fourth electrically-controlled valve; 127, negative pressure sensing module; 130, negative pressure generating module; 140, control module; 142, touch screen; 151, pressure gauge; 152, stop valve; 153, air relief valve; 200, angle valve to be tested; 300, pressurized air supply module. DETAILED DESCRIPTION

[0069] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0070] like Figure 1-2 As shown, the first aspect of the embodiment of the present application provides a multifunctional testing system 100 for a vacuum angle valve, which is used to test the performance of an angle valve 200 to be tested. The angle valve 200 to be tested may be a pneumatic angle valve.

[0071] The multifunctional test system 100 for a vacuum angle valve includes a pressure regulating module 110, a test passage 120, a negative pressure generating module 130 and a control module 140. It should be noted that: Figure 3 The electronic control device includes multiple valves and a pressure gauge 151 and other electronic control components. The arrows pointing toward the electronic control components represent signal inputs, and the arrows pointing away from the electronic control components represent signal outputs.

[0072] The pressure regulating module 110 is used to regulate the gas pressure at its own outlet, and the pressure regulating module 110 can be exemplarily an electric proportional valve. The control module 140 sends the target pressure to the pressure regulating module 110, and the pressure regulating module 110 performs the regulating action, thereby adjusting the gas pressure value at its own outlet to the target pressure, so that the control module 140 can know the gas pressure at the outlet of the pressure regulating module 110 according to the target pressure generated by itself. The inlet of the pressure regulating module 110 is used to communicate with the pressurized gas supply module 300, and the pressurized gas supply module 300 can be an air compressor, a gas storage tank, etc. The inlet of the pressure regulating module 110 is connected to the pressurized gas supply module 300, so as to introduce compressed gas into the multifunctional test system 100 of the vacuum angle valve.

[0073] The test passage 120 includes a first electrically controlled valve 121 , a second electrically controlled valve 122 , a pressure sensing module 123 and a position sensing module 124 .

[0074] The inlet of the first electrically controlled valve 121 is connected to the outlet of the pressure regulating module 110. The first electrically controlled valve 121 is used to control the on-off of the air control passage of the angle valve 200 to be tested. The first electrically controlled valve 121 is a normally open valve. Since the first solenoid valve does not need to be connected to multiple output interfaces, the first electrically controlled valve 121 can be a two-position two-way solenoid valve, thereby saving costs.

[0075] The inlet of the second electrically controlled valve 122 is connected to the outlet of the first electrically controlled valve 121, and the outlet of the second electrically controlled valve 122 is used to connect to the air control end of the angle valve 200 to be measured. The second electrically controlled valve 122 is used to supply air to the air control end of the angle valve 200 to be measured. When the second electrically controlled valve 122 supplies air to the air control end of the angle valve 200 to be measured, the angle valve 200 to be measured opens. When the second electrically controlled valve 122 deflates the air control end of the angle valve 200 to be measured, the angle valve 200 to be measured closes. It should be noted that, depending on the type of the pneumatic angle valve, the pneumatic angle valve may have one air control end or two air control ends. For example, the pneumatic angle valve only has a main valve, or the pneumatic angle valve has a main valve and an initial exhaust valve. Correspondingly, the second solenoid valve is a three-position five-way solenoid valve, that is, the second solenoid valve has multiple air outlets, so it can adapt to pneumatic angle valves with one air control end or two air control ends, and has a wider range of adaptability. The following embodiments are described by taking a pneumatic angle valve having a main valve and an initial exhaust valve as an example.

[0076] The pressure sensing module 123 is connected between the first electrically controlled valve 121 and the second electrically controlled valve 122. The pressure sensing module 123 is used to measure the air pressure between the first electrically controlled valve 121 and the second electrically controlled valve 122. The control module 140 can obtain the pressure value measured by the pressure sensing module 123. The pressure sensing module 123 can detect whether the angle valve 200 to be tested is leaking. For example, by closing the first electrically controlled valve 121 and opening the second electrically controlled valve 122, the air pressure of the pressure sensing module 123 is monitored. If the air pressure of the pressure sensing module 123 decreases, it means that the angle valve 200 to be tested is leaking. If the air pressure of the pressure sensing module 123 remains unchanged, it means that the angle valve 200 to be tested is not leaking. The pressure sensing module 123 can be exemplarily an electrically controlled pressure gauge 151. The electrically controlled pressure gauge 151 can set upper and lower limits for the range air pressure. If the current air pressure intensity exceeds the set upper and lower limits, a corresponding electrical signal will be output to provide a prompt or alarm.

[0077] The position sensing module 124 is set corresponding to the angle valve 200 to be tested, and the position detection module is used to detect the position information of the actuator of the angle valve 200 to be tested, and send the detected position information of the actuator to the control module 140. Specifically, the angle valve 200 to be tested has a valve opening state and a valve closing state. The position detection module is used to detect the position information of the actuator of the angle valve 200 to be tested when the angle valve 200 to be tested is in the valve opening state, and the position information of the actuator of the angle valve 200 to be tested when the angle valve 200 to be tested is in the valve closing state. The angle valve 200 to be tested also has a semi-open and semi-closed state between the valve opening state and the valve closing state. The position detection module can also detect the position of the actuator of the angle valve 200 to be tested when the angle valve 200 to be tested is in the semi-open and semi-closed state.

[0078] The negative pressure generating module 130 is used to communicate with the pipeline outlet of the angle valve 200 to be measured so as to evacuate the pipeline of the angle valve 200 to be measured. The negative pressure generating module 130 can be illustratively a vacuum pump.

[0079] The control module 140 is electrically connected to the pressure regulating module 110, the first electrically controlled valve 121, the second electrically controlled valve 122, the pressure sensing module 123, the negative pressure generating module 130 and the position sensing module 124. The control module 140 can control the actions of the pressure regulating module 110, the first electrically controlled valve 121, the second electrically controlled valve 122 and the negative pressure generating module 130. For example, the control module 140 can have a switch input and output to control the switches of multiple solenoid valves. The control module 140 can receive information from the pressure sensing module 123 and the position sensing module 124, and the control module 140 can also integrate the timing and counting functions. Figure 1 Due to the limited placement position, the electrical connection relationship between the control module 140 and other modules is not reflected.

[0080] It is understandable that when the negative pressure generating module 130 stops running, the pipeline of the angle valve 200 to be tested is at normal pressure. At this time, the angle valve 200 to be tested is tested, and the resistance of the angle valve 200 to be tested when opening or closing is relatively small. In actual use, the pipeline of the angle valve 200 to be tested is often in a negative pressure state, and the resistance of the angle valve 200 to be tested when opening or closing is relatively large. The performance of the angle valve 200 to be tested under pressure will be different from that under no pressure.

[0081] The multifunctional test system 100 for a vacuum angle valve of the embodiment of the present application can evacuate the pipeline of the angle valve 200 to be tested through the negative pressure generating module 130, so that the pipeline of the angle valve 200 to be tested is negative pressure, thereby simulating the actual use environment of the angle valve 200 to be tested, so that the test data of the multifunctional test system 100 for a vacuum angle valve is more accurate. Of course, the negative pressure generating module 130 can also be turned off without evacuating the pipeline of the angle valve 200 to be tested, so as to simulate the ideal use environment of the angle valve 200 to be tested.

[0082] In addition, most common performance testing equipment is a single-function device that can only test a certain specification performance. If multiple performance parameters need to be tested, multiple test equipment must be purchased for the test items, and a dedicated laboratory is required for installation, which is expensive and occupies a large space. The multifunctional testing system 100 for the vacuum angle valve of the embodiment of the present application can perform stroke testing, response testing, control pressure testing and fatigue testing on the angle valve 200 to be tested, that is, the multifunctional testing system 100 for the vacuum angle valve integrates the functions of multiple performance tests, and the overall multifunctional testing system 100 for the vacuum angle valve occupies a small platform. In different performance testing processes, part of the pipelines and valves of the multifunctional testing system 100 for the vacuum angle valve of the embodiment of the present application can be reused, thereby saving pipelines and valves and reducing costs. The specific method for testing the angle valve 200 to be tested will be described in detail later, and will not be discussed here for the time being.

[0083] like Figure 2 As shown, in some exemplary embodiments, the test passage 120 also includes a third electrically controlled valve 125, a fourth electrically controlled valve 126 and a negative pressure sensing module 127. The third electrically controlled valve 125, the fourth electrically controlled valve 126 and the negative pressure sensing module 127 are all electrically connected to the control module 140. The control module 140 can control the operation of the third electrically controlled valve 125 and the fourth electrically controlled valve 126, and can receive information from the negative pressure sensing module 127.

[0084] The inlet of the third electrically controlled valve 125 is communicated with the outlet of the pressure regulating module 110, and the outlet of the third electrically controlled valve 125 is used to communicate with the pipeline inlet of the angle valve 200 to be tested. The third electrically controlled valve 125 is used to control the on-off of the pipeline passage of the angle valve 200 to be tested, and the third electrically controlled valve 125 is a normally closed valve. Since the third solenoid valve does not need to be connected to multiple output interfaces, the third electrically controlled valve 125 can be a two-position two-way solenoid valve, thereby saving costs.

[0085] The inlet of the fourth electrically controlled valve 126 is used to connect with the pipeline outlet of the angle valve 200 to be tested, and the outlet of the fourth electrically controlled valve 126 is connected with the negative pressure generating module 130. The fourth electrically controlled valve 126 is used to control whether the negative pressure generating module 130 is connected with the pipeline outlet of the angle valve 200 to be tested. The fourth electrically controlled valve 126 can be an electromagnetic angle valve, which can maintain stable operation even in extreme environments and is more reliable.

[0086] The negative pressure sensing module 127 is disposed at the inlet of the fourth electrically controlled valve 126 , and is used to measure the negative pressure value of the pipeline outlet of the angle valve 200 to be tested, and can send the negative pressure data of the pipeline outlet of the angle valve 200 to the control module 140 .

[0087] The multifunctional testing system 100 of the vacuum angle valve of the present embodiment can inflate and pressurize the pipeline inlet of the angle valve 200 to be tested by opening the third electrically-controlled valve 125, and can evacuate the pipeline outlet of the angle valve 200 to be tested by opening the fourth electrically-controlled valve 126, thereby being able to perform a pressure resistance test on the angle valve 200 to be tested.

[0088] like Figure 2 As shown, in some exemplary embodiments, the number of test passages 120 is multiple, and the multiple test passages 120 are arranged in parallel. Each test passage 120 can test one angle valve 200 to be tested, and multiple test passages can test multiple angle valves 200 to be tested at the same time, thereby improving the efficiency of the test and saving the test time. Optionally, the number of test passages 120 is two, so as to improve the efficiency without making the volume of the multifunctional test system 100 of the vacuum angle valve too large.

[0089] It should be noted that multiple test paths 120 can be tested simultaneously, or some test paths 120 can be tested while other test paths 120 are not tested. It is understandable that closing the first electrically controlled valve 121 can prevent air from entering the control air end of the test valve, closing the third solenoid valve can prevent air from entering the pipeline inlet of the angle valve 200 to be tested, and closing the fourth solenoid valve can prevent vacuuming of the pipeline outlet of the test valve. When a test path 120 is not tested, the test path 120 can be isolated by closing the first electrically controlled valve 121, the third solenoid valve and the fourth solenoid valve.

[0090] like Figure 3-4 As shown, in some exemplary embodiments, the multifunctional testing system 100 for a vacuum angle valve further includes a pressure gauge 151 , a stop valve 152 , and a relief valve 153 .

[0091] The pressure gauge 151 is connected between the pressurized air supply module 300 and the pressure regulating module 110, so that the air supply pressure of the multifunctional test system 100 of the vacuum angle valve can be observed at any time to determine whether the air supply pressure is qualified. The pressure gauge 151 can be a mechanical pressure gauge 151, which is convenient for users to directly read the pressure and is more reliable and durable.

[0092] The shut-off valve 152 is connected between the pressure gauge 151 and the pressure regulating module 110. The shut-off valve 152 is used to shut off the air supply of the multifunctional test system 100 of the vacuum angle valve. When the multifunctional test system 100 of the vacuum angle valve needs to be operated, the shut-off valve 152 is opened. When the multifunctional test system 100 of the vacuum angle valve needs to be shut down, the shut-off valve 152 can be closed, thereby isolating the multifunctional test system 100 of the vacuum angle valve from the pressurized air supply module 300 to facilitate inspection and maintenance operations. The shut-off valve 152 can control the air intake of the multifunctional test system 100 of the entire vacuum angle valve. Normally, the shut-off valve 152 is open. Since the shut-off valve 152 is opened and closed relatively rarely, the shut-off valve 152 can be a manual valve to save costs.

[0093] The air relief valve 153 is connected to the outlet of the pressure regulating module 110. The air relief valve 153 is used to relieve pressure on the pipeline of the multifunctional test system 100 of the vacuum angle valve. When the multifunctional test system 100 of the vacuum angle valve stops running, the air relief valve 153 can be opened to relieve pressure, thereby avoiding the pipeline and valve of the multifunctional test system 100 of the vacuum angle valve from being under pressure for a long time, and improving the service life of the multifunctional test system 100 of the vacuum angle valve. Normally, the air relief valve 153 is closed. Since the air relief valve 153 is opened and closed relatively rarely, the air relief valve 153 can be a manual valve to save costs.

[0094] In some exemplary embodiments, the control module 140 includes a control unit and a touch screen 142, the touch screen 142 is electrically connected to the control unit, the touch screen 142 sends the touch command to the control unit, and the control unit performs corresponding calculation processing. By directly operating on the touch screen 142, human-computer interaction can be facilitated and the setting of buttons can be reduced. The multifunctional test system 100 of the vacuum angle valve also includes an operation button and an emergency stop button, and the operation button and the emergency stop button are both electrically connected to the control unit. The operation button is used to control the multifunctional test system 100 of the vacuum angle valve. For some more frequent operations, such as switching the angle valve 200 to be tested by the operation button, or switching the test main valve or initial valve by the operation button, the operation efficiency of the operation button will be higher. The emergency stop button is used for emergency stop testing. In critical moments, the speed of tapping the emergency stop button is obviously faster than operating on the touch screen 142, thereby reducing risks and losses.

[0095] like Figure 4 As shown, in some exemplary embodiments, the multifunctional testing system 100 of the vacuum angle valve includes an outer cover, and the touch screen 142, the operation button, the emergency stop button, the pressure gauge 151, the stop valve 152 and the relief valve 153 are all arranged on the outer surface of the outer cover. The touch screen 142, the operation button, and the emergency stop button are arranged on the outer surface of the outer cover, which can be convenient for the user to touch or operate. The pressure gauge 151 is arranged on the outer surface of the outer cover, which can be convenient for the user to observe the pressure. The stop valve 152 and the relief valve 153 are arranged on the outer surface of the outer cover, which can be convenient for the user to screw to close or open the valve.

[0096] The pressure regulating module 110, the first electrically controlled valve 121, the second electrically controlled valve 122, the pressure sensing module 123, the third electrically controlled valve 125, the fourth electrically controlled valve 126, the negative pressure sensing module 127 and the negative pressure generating module 130 are all arranged inside the outer cover. Since the above components do not require manual operation, they are arranged inside the outer cover. The outer cover can protect the above components, and the outer cover can also play a role in isolating noise, thereby reducing the noise when the above components are working.

[0097] like Figure 1-2 As shown, in some exemplary embodiments, the position sensing module 124 includes a laser sensor 1241 and a Hall sensor 1242 , the laser sensor 1241 is disposed on the actuator of the angle valve 200 to be measured, and the Hall sensor 1242 is disposed on the angle valve 200 to be measured.

[0098] The laser sensor 1241 measures the straight-line distance between the target object and the laser sensor 1241 by the principle of laser reflection. The laser sensor 1241 can be installed directly above the angle valve 200 to be measured, and the laser is aimed at the actuator part of the angle valve 200 to be measured. The laser sensor 1241 can measure the movement stroke of the main valve and the movement stroke of the initial valve. The laser sensor 1241 has the advantages of non-contact long-distance measurement, fast speed, high accuracy, large range, and strong anti-photoelectric interference ability.

[0099] The Hall sensor 1242 can be understood as a magnetic switch, which monitors the position of the main valve by sensing the position of the main valve magnetic ring of the angle valve 200 to be tested. The Hall sensor 1242 can be installed in the guide groove of the angle valve 200 to be tested. Each position sensing module 124 includes two Hall sensors 1242, and the two Hall sensors 1242 correspond to the open and closed positions of the main valve respectively. When the main valve of the angle valve 200 to be tested is opened, the Hall sensor 1242 set in the open position sends out a sense, and when the main valve of the angle valve 200 to be tested is closed, the Hall sensor 1242 set in the closed position sends out a sense. The Hall sensor 1242 can perform non-contact measurement, reduce mechanical wear, and avoid errors introduced by contact. The Hall sensor 1242 shows good adaptability and stability to environmental changes, such as temperature fluctuations, humidity changes, etc., and can maintain reliable working performance for a long time.

[0100] like Figure 4 As shown, in some exemplary embodiments, the multifunctional testing system 100 for a vacuum angle valve includes a machine platform and a sliding module arranged on the machine platform, a laser sensor 1241 is arranged on the sliding module, and the laser sensor 1241 is arranged above the angle valve 200 to be tested, and the sliding module is used to adjust the position of the laser sensor 1241 relative to the angle valve 200 to be tested.

[0101] The sliding module includes a vertical rod, a connecting block, a cross rod and a slider. The vertical rod is fixedly arranged on the table, the connecting block is rotatably arranged on the vertical rod, and the connecting block is slidably arranged on the vertical rod, the cross rod is connected to the connecting block, the slider is slidably arranged on the cross rod, and the laser sensor 1241 is arranged on the slider. The laser sensor 1241 can rotate around the vertical rod with the connecting block, and can also slide in the vertical direction with the connecting block, and can also slide in the horizontal direction with the slider, so that the position of the laser sensor 1241 can be adjusted arbitrarily, the laser sensor 1241 can be directly opposite to the actuator of the angle valve 200 to be measured, and the actuator of the angle valve 200 to be measured can be located within the measuring range of the laser sensor 1241.

[0102] In some exemplary embodiments, the multifunctional testing system 100 for a vacuum angle valve further includes a power module, a first temperature sensor, a second temperature sensor, a first fan, and a second fan.

[0103] The power supply module is used to supply power to the multifunctional testing system 100 of the vacuum angle valve. The power supply can specifically supply power to the control module 140, the pressure regulating module 110, the first electrically controlled valve 121, the second electrically controlled valve 122, the pressure sensing module 123, the negative pressure generating module 130, the position sensing module 124, the third electrically controlled valve 125, the fourth electrically controlled valve 126, the negative pressure sensing module 127, the first temperature sensor, the second temperature sensor, the first fan and the second fan.

[0104] The first temperature sensor is provided corresponding to the power module, and is used to measure the temperature of the power module. The second temperature sensor is provided corresponding to the negative pressure generating module 130, and is used to measure the temperature of the negative pressure generating module 130. The power module and the negative pressure generating module 130 are components that are prone to heat, and therefore need to be monitored intensively.

[0105] The first fan is used for sucking air, and the second fan is used for blowing air. The first fan cooperates with the second fan to accelerate the flow of air, thereby taking away the heat of the multifunctional testing system 100 of the vacuum angle valve.

[0106] When the temperature value of the first temperature sensor or the temperature value of the second temperature sensor exceeds the first threshold value, the first fan and the second fan are both started to cool down the multifunctional testing system 100 of the vacuum angle valve. When the temperature value of the first temperature sensor and the temperature value of the second temperature sensor are lower than the second threshold value, the first fan and the second fan are both stopped to save power. The first threshold value and the second threshold value can be set according to actual conditions and are not limited here. For example, the difference between the first threshold value and the second threshold value is five, so as to avoid frequent starting and stopping of the first fan and the second fan.

[0107] By setting a first temperature sensor to monitor the temperature of the power module and setting a second temperature sensor to monitor the temperature of the negative pressure generating module 130, overheating of the power module and the negative pressure generating module 130 can be avoided as much as possible, thereby improving the safety of the multifunctional testing system 100 of the vacuum angle valve.

[0108] like Figure 3-4 As shown, the second aspect of the embodiment of the present application provides an operation method of a multifunctional testing system 100 for a vacuum angle valve, such as Figure 3 As shown, the multifunctional testing system 100 for a vacuum angle valve includes a control module 140 , a position sensing module 124 , a pressure regulating module 110 and a negative pressure generating module 130 .

[0109] The position sensing module 124 is set corresponding to the angle valve 200 to be tested, and is used to sense the position of the actuator of the angle valve 200 to be tested; the pressure regulating module 110 is connected to the air control end and the pipeline inlet of the angle valve 200 to be tested, and is used to adjust the pressure of the air control end or the pipeline inlet of the angle valve 200 to be tested; the negative pressure generating module 130 is connected to the pipeline outlet of the angle valve 200 to be tested, and is used to adjust the negative pressure at the pipeline outlet of the angle valve 200 to be tested.

[0110] The control module 140 integrates timing and counting functions. The control module 140 is electrically connected to the position sensing module 124 , the pressure regulating module 110 and the negative pressure generating module 130 . The control module 140 can obtain the pressure value fed back by the pressure regulating module 110 .

[0111] like Figure 4 As shown, the operation method includes:

[0112] In step S100, the position information of the position sensing module 124 is obtained through the control module 140, the pressure of the air control end or the pipeline inlet of the angle valve 200 to be tested is adjusted by the pressure regulating module 110, and the negative pressure generating module 130 is used to adjust the negative pressure of the pipeline outlet of the angle valve 200 to be tested, so as to test at least two of the stroke, response time, control pressure, fatigue test and tolerance pressure of the angle valve 200 to be tested.

[0113] Through the operation method of this embodiment, multiple tests can be performed on the angle valve 200 to meet the scenario requirements of frequent testing and debugging during the development of pneumatic angle valves. Moreover, performing multiple tests on the angle valve 200 to be tested can not only ensure its safety and reliability, but also improve its overall performance and scope of application, reduce maintenance costs, and extend its service life.

[0114] like Figure 5 As shown, in some exemplary embodiments, the operation method further includes:

[0115] Select one of the following tests: Stroke Test, Response Time, Control Pressure, Fatigue Test and Proof Pressure.

[0116] Specifically, icon interfaces of stroke test, response time, control pressure, fatigue test and pressure tolerance may be displayed on the touch screen, and the user selects a test item by touching the corresponding icon interface.

[0117] After setting the corresponding parameters of the selected test items, start the automatic test.

[0118] By setting the corresponding parameters of the selected test items, the qualification criteria of the test items can be adjusted, thereby making the test more flexible and meeting different test requirements.

[0119] The operation method of this embodiment can automatically perform the test, and the automated test can ensure the accurate execution of the test process, avoid human omissions and errors, and improve the reliability of the test results. Moreover, a large number of test cases can be quickly executed through automated testing, thereby saving the time and workload of testers.

[0120] like Figure 6 As shown, in some exemplary embodiments, if a stroke test is performed on the angle valve 200 to be tested, the stroke test parameters can be set first. The stroke test parameters exemplarily include setting the air pressure value of the test air control channel (such as setting it to 0.45MPa), and setting the tolerance range of the air pressure value of the air control channel (such as setting it to 0.1MPa).

[0121] The specific operation steps of the stroke test include:

[0122] Step S101 , the air control end of the angle valve 200 to be tested is deflated to close the angle valve 200 to be tested, and the closing position of the actuator of the angle valve 200 to be tested is recorded by the position sensing module 124 .

[0123] Taking the above test system as an example, the angle valve 200 to be tested is in a closed state when there is no pressure. The control module 140 can issue an instruction to control the second electric control valve 122 to deflate, so that the angle valve 200 to be tested is closed, and the laser sensor 1241 measures the position of the actuator of the angle valve 200 to be tested when it is closed.

[0124] Step S102 , supplying air to the air control end of the angle valve 200 to be tested so as to open the angle valve 200 to be tested, and recording the opening position of the actuator of the angle valve 200 to be tested through the position sensing module 124 .

[0125] The control module 140 can issue a command to control the second electrically controlled valve 122 to inflate the angle valve 200 to be measured, so that the angle valve 200 to be measured is opened, and the laser sensor 1241 measures the position of the actuator when the angle valve 200 to be measured is opened.

[0126] In step S103 , the control module 140 calculates the stroke of the angle valve 200 to be tested according to the closing position and the opening position.

[0127] According to the distance value between the closed position and the open position, the stroke of the angle valve 200 to be measured can be obtained.

[0128] The stroke test is an important means to ensure that the angle valve 200 to be tested complies with relevant standards and specifications. Through the test, it can be verified whether the angle valve 200 to be tested meets the design requirements and safety standards. Through the stroke test, the working parameters of the pneumatic angle valve can also be optimized, unnecessary energy consumption and medium waste can be reduced, thereby improving production efficiency.

[0129] like Figure 7 As shown, in some exemplary embodiments, if a stroke test is performed on the angle valve 200 to be tested, the specific operation steps further include:

[0130] Step S201 , after the angle valve 200 to be tested is closed for a first preset time, the closing position of the actuator of the angle valve 200 to be tested is recorded by the position sensing module 124 .

[0131] By setting the position measurement after the first preset time, it is possible to ensure that the angle valve 200 to be tested is closed and remains stable as much as possible, thereby improving the accuracy of the stroke test. The first preset time is determined according to the response time of the angle valve 200 to be tested, and is not limited here. For example, the first preset time can be 3 seconds, which can ensure that it is closed in place without taking up too much time.

[0132] Step S202 , after the angle valve 200 to be tested is opened for a second preset time, the opening position of the actuator of the angle valve 200 to be tested is recorded by the position sensing module 124 .

[0133] By setting the position measurement after the second preset time, it is possible to ensure that the angle valve 200 to be tested is fully opened and remains stable, thereby improving the accuracy of the stroke test. The second preset time is determined according to the response time of the angle valve 200 to be tested, and is not limited here. For example, the second preset time can be 3 seconds, which can ensure that it is fully closed without taking up too much time.

[0134] like Figure 8 As shown, in some exemplary embodiments, if a response time test is performed on the angle valve 200 to be tested, the parameters of the response time test can be set first. The parameters of the response time test exemplarily include setting the air pressure value of the test air control channel, the tolerance range of the air pressure value of the air control channel, the test environment selection, the action stroke ratio setting, etc.

[0135] The specific steps of the response time test include:

[0136] In step S301 , the control module 140 sends an opening signal to open the angle valve 200 to be tested, and starts timing.

[0137] Exemplarily, the control module 140 controls the opening of the angle valve 200 to be tested by controlling the second electrically controlled valve 122 to inflate the angle valve 200 to be tested, so that the control module 140 can use the signal for opening the second electrically controlled valve 122 as the opening signal, and after the opening signal is issued, the angle valve 200 to be tested begins to open. It should be noted that the opening time of the second electrically controlled valve 122 is very short relative to the opening time of the angle valve 200 to be tested, so the delay caused by the opening of the second electrically controlled valve 122 can be ignored.

[0138] Step S302 , after the angle valve 200 to be tested is fully opened, the position sensing module 124 sends a fully opened signal, and the control module 140 stops timing.

[0139] The position sensing module 124 sends out an opening position signal after detecting that the angle valve 200 to be tested is fully opened. The opening position signal can be sent out by the laser sensor 1241 or the Hall sensor 1242 .

[0140] In step S303 , the control module 140 calculates the opening response time of the angle valve 200 to be tested according to the time difference between the opening signal and the opening completion signal.

[0141] The time difference between the opening signal and the opening completion signal is the time required for the angle valve 200 to be tested to be opened, and the time required for the angle valve 200 to be tested to be opened is the opening response time of the angle valve 200 to be tested.

[0142] In step S304 , the control module 140 sends a closing signal to close the angle valve 200 to be tested, and starts timing.

[0143] Exemplarily, the control module 140 controls the angle valve 200 to be tested to be deflated by the second electrically controlled valve 122, thereby controlling the closing of the angle valve 200 to be tested. Therefore, the control module 140 can use the pressure relief signal of the second electrically controlled valve 122 as a closing signal. After the closing signal is issued, the angle valve 200 to be tested begins to close. It should be noted that the deflation time of the second electrically controlled valve 122 is very short relative to the closing time of the angle valve 200 to be tested, so the delay caused by the deflation of the second electrically controlled valve 122 can be ignored.

[0144] Step S305 , after the angle valve 200 to be tested is fully closed, the position sensing module 124 sends a fully closed signal, and the control module 140 stops timing.

[0145] The position sensing module 124 sends out a fully closed signal after detecting that the angle valve 200 to be tested is fully closed. The fully closed signal may be sent out by the laser sensor 1241 or the Hall sensor 1242 .

[0146] In step S306 , the control module 140 calculates the closing response time of the angle valve 200 to be tested according to the time difference between the closing signal and the closing completion signal.

[0147] The time difference between the closing signal and the closing signal is the time required for the angle valve 200 to be tested to close, and the time required for the angle valve 200 to be tested to close is the closing response time of the angle valve 200 to be tested.

[0148] The resistance encountered by the angle valve 200 to be tested when opening or closing may be different, so the opening response time and closing response time of the angle valve 200 to be tested may be different. The opening response time and closing response time of the angle valve 200 to be tested need to be measured separately.

[0149] Through the test, the response speed of the angle valve 200 to be tested can be verified to ensure that it can respond quickly and avoid safety accidents caused by slow response. The response time test can help discover problems in the design and manufacturing process, and by optimizing the design and improving the manufacturing process, reduce frequent repairs caused by design defects, thereby extending the service life of the angle valve 200 to be tested. Through the response time test, it can be verified whether the angle valve 200 to be tested meets the relevant standards and regulatory requirements to ensure product compliance.

[0150] like Fig. 9 As shown, in some exemplary embodiments, if the response time test is performed on the angle valve 200 to be tested, the steps are also included:

[0151] Step S401 , before the control module 140 sends an opening signal to open the angle valve 200 to be tested, the fully opened position and the fully closed position of the angle valve 200 to be tested are set.

[0152] By setting the fully opened position, the time required for the angle valve 200 to be tested to open to different openings can be measured. By setting the fully closed position, the time required for the angle valve 200 to be tested to close to different openings can be measured.

[0153] like Fig.10 As shown, in some exemplary embodiments, the multifunctional testing system 100 for a vacuum angle valve further includes a pressure sensing module 123, and the pressure sensing module 123 is electrically connected to the control module 140. If a control pressure test is performed on the angle valve 200 to be tested, the parameters of the control pressure test can be set first. The parameters of the control pressure test exemplarily include setting the air pressure value of the test air control channel, the tolerance range of the air pressure value of the air control channel, test environment selection, valve open position setting, valve closed position setting, initial pressure setting value when the angle valve to be tested is started, control pressure delay, etc.

[0154] The specific steps of the control stress test include:

[0155] Step S501 : The control module 140 controls the pressure regulating module 110 to gradually increase the air pressure value at the air control end of the angle valve 200 to be tested.

[0156] By increasing the opening of the pressure regulating module 110 , the air pressure value at the air control end of the angle valve 200 to be tested can be increased.

[0157] Step S502 , when the position sensing module 124 detects that the actuator of the angle valve 200 to be tested is located at the start position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the start control pressure value.

[0158] The start position of the angle valve 200 to be tested may be related to the closing position, for example, the position of the actuator after moving 1mm from the closing position is the start position. Alternatively, the start position of the angle valve 200 to be tested may be independent of the closing position and set by the user.

[0159] In step S503 , the control module 140 compares the startup control pressure value with a preset first pressure value to determine whether the startup control pressure value is normal.

[0160] The first pressure value is the designed starting pressure value of the angle valve 200 to be tested, and the starting control pressure value is the actually measured starting pressure value. When the difference between the first pressure value and the starting control pressure value is within the tolerance range, the starting pressure value of the angle valve 200 to be tested is qualified. When the difference between the first pressure value and the starting control pressure value is outside the tolerance range, the starting pressure value of the angle valve 200 to be tested is unqualified.

[0161] Step S504 , when the position sensing module 124 detects that the actuator of the angle valve 200 to be tested is at the fully opened position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the fully opened control pressure value.

[0162] By continuing to increase the opening of the pressure regulating module 110, the air pressure value at the air control end of the angle valve 200 to be tested can continue to increase, thereby increasing the opening of the angle valve 200 to be tested continuously until the actuator of the angle valve 200 to be tested is in the open position.

[0163] In step S505 , the control module 140 compares the opening limit control pressure value with a preset second pressure value to determine whether the opening limit control pressure value is normal.

[0164] The second pressure value is the designed opening pressure value of the angle valve 200 to be tested, and the opening control pressure value is the actually measured opening pressure value. When the difference between the second pressure value and the opening control pressure value is within the tolerance range, the opening pressure value of the angle valve 200 to be tested is qualified. When the difference between the second pressure value and the opening control pressure value is outside the tolerance range, the opening pressure value of the angle valve 200 to be tested is unqualified.

[0165] By performing a controlled pressure test on the angle valve 200 to be tested, that is, by adjusting the air pressure, the opening of the valve can be precisely controlled to achieve higher precision and accuracy, and problems in the design and manufacturing process can be discovered to optimize product performance.

[0166] like Fig.11 As shown, in some exemplary embodiments, if a fatigue test is performed on the angle valve 200 to be tested, the parameters of the fatigue test can be set first. The parameters of the fatigue test exemplarily include setting the air pressure value of the air control channel of the test, the tolerance range of the air pressure value of the air control channel, selecting the test environment, setting the target number of times, the number of pressure holding tests, the maximum response time, etc.

[0167] The specific steps of fatigue testing include:

[0168] Step S601 , repeatedly opening and closing the angle valve 200 to be tested, and recording the number of times the angle valve 200 to be tested is opened and closed through the control module 140 .

[0169] Step S602: If the number of times the angle valve 200 to be tested is opened or closed does not reach the first preset number and the angle valve 200 to be tested is damaged, the test is stopped and it is determined that the angle valve 200 to be tested has failed the fatigue test.

[0170] The first preset number is the qualified number of times the angle valve 200 to be tested is opened and closed. If the number of times the angle valve 200 to be tested is opened or closed does not reach the first preset number, it means that the performance of the angle valve 200 to be tested does not meet the requirements.

[0171] Step S603, if the number of times the angle valve 200 to be tested is opened and closed reaches the first preset number, stop the test and test the performance of the angle valve 200 to be tested. If the test is qualified, it is determined that the angle valve 200 to be tested has passed the fatigue test; if the test is unqualified, it is determined that the angle valve 200 to be tested has not passed the fatigue test.

[0172] Although the angle valve 200 to be tested can be opened and closed for the first preset number of times, if the performance of the angle valve 200 to be tested is significantly reduced after the first preset number of times, it is also judged as unqualified. Only when the angle valve 200 to be tested can be opened and closed for the first preset number of times and the performance of the angle valve 200 to be tested still meets the requirements after the first preset number of times, it is judged as qualified.

[0173] Fatigue testing can simulate the long-term operation of the angle valve 200 under actual working conditions, evaluate its consistency and reliability after multiple operations, and verify the durability and stability of the valve. Through fatigue testing, the performance stability of the angle valve 200 under long-term use can be evaluated, potential failure risks can be discovered in advance, and it can be ensured that the angle valve 200 under extreme conditions will not leak or fail, thereby ensuring the safety of personnel and equipment.

[0174] In some exemplary embodiments, when the number of times the angle valve 200 to be tested is opened and closed reaches a second preset number, the test is paused and the performance of the angle valve 200 to be tested is tested. If the test is qualified, the test is continued; if the test is unqualified, the test is stopped and it is determined that the angle valve 200 to be tested has failed the fatigue test, and the second preset number is less than the first preset number.

[0175] The performance of the angle valve 200 to be tested is tested, including the air tightness and response time of the angle valve 200 to be tested. The response time of the angle valve opening and closing is compared with the preset value to determine whether it is normal. The response time can be tested according to the above-mentioned response time test method, and the response time can be tested every time the angle valve 200 to be tested is opened and closed, which will not be repeated here.

[0176] The air tightness includes vacuum degree monitoring and pressure holding test. For example, the vacuum degree of the pipe outlet of the angle valve 200 to be tested can be monitored during each opening / closing action of the angle valve 200 to be tested. The vacuum degree of the angle valve 200 to be tested can be judged by the parameters of the negative pressure sensing module 127. When the vacuum degree of the angle valve 200 to be tested is unqualified, it means that the angle valve 200 to be tested is leaking, and the negative pressure of the negative pressure sensing module 127 will decrease.

[0177] When the angle valve is undergoing fatigue testing, the sealing components of the relevant parts of the air control channel inside the angle valve will continue to displace and wear, so it is necessary to monitor the air tightness of the air control channel. The controller channel is filled with a preset positive air pressure (such as 0.7MPa), and the first electric control valve 121 is closed for a preset time (such as 10 minutes). At the same time, the air pressure value of the pressure sensing module 123 is monitored. When the air pressure value of the pressure sensing module 123 changes to less than the preset pressure value, it is judged that the air tightness is abnormal, that is, the wear of the sealing components related to the air control channel inside the angle valve affects the airtightness of the system. In addition, because the pressure holding time is relatively long, it is impossible to perform an air tightness monitoring every time the angle valve is opened / closed during the fatigue test of the angle valve, so the experimental system can preset the preset number of air tightness detection actions X (such as entering an air tightness monitoring once every 1000 times of opening / closing).

[0178] When the angle valve is undergoing fatigue testing, the sealing components of the relevant parts of the internal pipeline channel will continue to undergo displacement or compression movement and cause wear, so the pipeline channel needs to be monitored for tightness. The specific implementation method is that during the experiment, the air at the pipeline outlet of the angle valve 200 to be tested is extracted through the negative pressure generating module 130, and the vacuum degree in the pipeline channel is detected in real time through the negative pressure sensing module 127. When the vacuum degree is detected to be greater than the preset vacuum degree, it is judged that the vacuum degree is abnormal, that is, the wear of the sealing components related to the internal pipeline channel of the angle valve affects the vacuum degree of the system. The platform stops the fatigue test, and the currently recorded fatigue times are the fatigue life of the angle valve to be tested.

[0179] In summary, during the test, although the angle valve 200 to be tested can still be opened and closed, the angle valve 200 to be tested may have been damaged. Therefore, if the performance test is performed after the angle valve 200 to be tested has reached the first preset number of times, the test resources will be wasted. Therefore, the performance of the angle valve 200 to be tested can be tested every time the angle valve 200 to be tested reaches the second preset number of times, so as to find the problems of the angle valve 200 to be tested in advance and improve the test efficiency.

[0180] like Fig.12 As shown, in some exemplary embodiments, the multifunctional testing system 100 for a vacuum angle valve further includes a pressure sensing module 123, and the pressure sensing module 123 is electrically connected to the control module 140. If a pressure resistance test is performed on the angle valve 200 to be tested, the parameters of the pressure resistance test can be set first. The parameters of the pressure resistance test exemplarily include setting the air pressure value of the test air control channel, setting the tolerance range of the air pressure value of the air control channel, etc.

[0181] The specific steps of the withstand voltage test include:

[0182] Step S701 , switching the air supply from the air control end of the angle valve 200 to be measured to the air supply to the pipeline inlet of the angle valve 200 to be measured.

[0183] Exemplarily, the first electrically controlled valve 121 may be closed and the third electrically controlled valve 125 may be opened, so that there is no air pressure at the air control end of the angle valve 200 to be tested and there is air pressure at the pipeline inlet of the angle valve 200 to be tested.

[0184] Step S702 , vacuuming the pipe outlet of the angle valve 200 to be measured by the negative pressure generating module 130 .

[0185] Exemplarily, the fourth electrically controlled valve 126 and the negative pressure generating module 130 may be opened.

[0186] Step S703 , the control module 140 controls the pressure regulating module 110 to operate so as to gradually increase the air pressure value at the pipeline inlet of the angle valve 200 to be tested.

[0187] For example, by increasing the opening of the pressure regulating module 110 , the air pressure value at the pipeline inlet of the angle valve 200 to be tested can be increased.

[0188] Step S704 , when the position sensing module 124 detects that the actuator of the angle valve 200 to be tested is located at the start position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the withstand pressure value of the angle valve 200 to be tested.

[0189] When the actuator of the angle valve 200 to be tested is in the start position, it means that the angle valve 200 to be tested is pushed open by the gas at the pipeline inlet. At this time, the gas pressure value at the pipeline inlet of the angle valve 200 to be tested is the withstand pressure value of the angle valve 200 to be tested. The withstand pressure value can be obtained through the target pressure signal of the control module 140 or the feedback value of the pressure regulating module 110.

[0190] In step S705 , the control module 140 compares the withstand pressure value with a preset third pressure value to determine whether the withstand pressure value is normal.

[0191] The third pressure value is the designed pressure resistance value of the angle valve 200 to be tested, and the pressure resistance pressure value is the actually measured pressure resistance value. When the difference between the third pressure value and the pressure resistance pressure value is within the tolerance range, the pressure resistance of the angle valve 200 to be tested is qualified; when the difference between the third pressure value and the pressure resistance pressure value is outside the tolerance range, the pressure resistance of the angle valve 200 to be tested is unqualified.

[0192] The pressure test can verify the structural integrity and sealing performance of the angle valve 200 under high pressure, ensuring that the angle valve 200 will not leak or fail under extreme conditions, thereby ensuring the safety of personnel and equipment. Through the pressure test, the working ability of the angle valve 200 under a specific pressure can be evaluated, thereby predicting its durability and service life in long-term operation, and ensuring that the valve remains stable in long-term use.

[0193] In some exemplary embodiments, when testing the angle valve 200 to be tested, the pipeline outlet of the angle valve 200 to be tested is evacuated by the negative pressure generating module 130 so that the pipeline outlet of the angle valve 200 to be tested is in a negative pressure state, thereby simulating the use scenario of the angle valve 200 to be tested in a vacuum state to measure the performance of the angle valve 200 to be tested in a vacuum environment.

[0194] In some scenarios, the angle valve 200 to be tested is in a normal pressure or low vacuum environment. At this time, the negative pressure generating module 130 can be closed to make the pipeline outlet of the angle valve 200 to be tested in a normal pressure state, thereby simulating a normal pressure environment to measure the performance of the angle valve 200 to be tested in a normal pressure environment.

[0195] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0196] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An operating method of a multifunctional test system for a vacuum angle valve, characterized in that: The multifunctional testing system of the vacuum angle valve comprises a control module, a position sensing module, a pressure regulating module and a negative pressure generating module. The control module is electrically connected to the position sensing module, the pressure regulating module and the negative pressure generating module. The control module integrates timing and counting functions. The position sensing module is set corresponding to the angle valve to be tested, and is used to sense the position of the actuator of the angle valve to be tested; the pressure regulating module is connected to the air control end and the pipeline inlet of the angle valve to be tested, and is used to adjust the pressure of the air control end or the pipeline inlet of the angle valve to be tested; the negative pressure generating module is connected to the pipeline outlet of the angle valve to be tested, and is used to adjust the negative pressure of the pipeline outlet of the angle valve to be tested; The operating method includes: obtaining the position information of the position sensing module through the control module, using the pressure regulating module to adjust the pressure of the air control end or the pipeline inlet of the angle valve to be tested, and using the negative pressure generating module to adjust the negative pressure of the pipeline outlet of the angle valve to be tested, so as to realize at least two of the stroke test, response time, control pressure, fatigue test and tolerance pressure of the angle valve to be tested.

2. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1 is characterized in that: If the stroke test is performed on the angle valve to be tested, the specific operation steps include: Deflating the air control end of the angle valve to be tested so as to close the angle valve to be tested, and recording the closing position of the actuator of the angle valve to be tested through the position sensing module; Supplying air to the air control end of the angle valve to be measured so as to open the angle valve to be measured, and recording the opening position of the actuator of the angle valve to be measured through the position sensing module; The control module calculates the stroke of the angle valve to be measured according to the closing position and the opening position.

3. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 2, characterized in that: If the stroke test is performed on the angle valve to be tested, the specific operation steps also include: After the angle valve to be tested is closed for a first preset time, the closing position of the actuator of the angle valve to be tested is recorded by the position sensing module; After the angle valve to be measured is opened for a second preset time, the opening position of the actuator of the angle valve to be measured is recorded by the position sensing module.

4. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1 is characterized in that: If the response time of the angle valve to be tested is tested, the specific operation steps include: The control module sends an opening signal to open the angle valve to be tested and starts timing; After the angle valve to be tested is fully opened, the position sensing module sends a fully opened signal, and the control module stops timing; The control module calculates the opening response time of the angle valve to be tested according to the time difference between the opening signal and the opening position signal; The control module sends a closing signal to close the angle valve to be tested and starts timing; After the angle valve to be tested is fully closed, the position sensing module sends a fully closed signal, and the control module stops timing; The control module calculates the closing response time of the angle valve to be tested according to the time difference between the closing signal and the closing position signal.

5. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1, characterized in that: The operation method also includes: Select one of the following test items: stroke test, response time, control pressure, fatigue test and withstand pressure; After setting the corresponding parameters of the selected test items, start the automatic test.

6. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1, characterized in that: The multifunctional test system of the vacuum angle valve further comprises a pressure sensing module, and the pressure sensing module is electrically connected to the control module. If a control pressure test is performed on the angle valve to be tested, the specific operation steps include: The pressure regulating module is controlled by the control module to gradually increase the air pressure value of the air control end of the angle valve to be tested; If the position sensing module detects that the actuator of the angle valve to be tested is at the starting position, the control module records the air pressure value measured by the pressure sensing module at this time as the starting control pressure value; The control module compares the startup control pressure value with a preset first pressure value to determine whether the startup control pressure value is normal; If the position sensing module detects that the actuator of the angle valve to be tested is in the fully opened position, the control module records the air pressure value measured by the pressure sensing module at this time as the fully opened control pressure value; The control module compares the opening position control pressure value with a preset second pressure value to determine whether the opening position control pressure value is normal.

7. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1, characterized in that: If fatigue testing is performed on the angle valve to be tested, the specific steps include: The angle valve to be measured is repeatedly opened and closed, and the number of times the angle valve to be measured is opened and closed is recorded by the control module; If the number of times the angle valve to be tested is opened or closed does not reach the first preset number, and the angle valve to be tested is damaged, the test is stopped, and it is determined that the angle valve to be tested has failed the fatigue test; If the number of times the angle valve to be tested is opened and closed reaches the first preset number, the test is stopped and the performance of the angle valve to be tested is tested. If the test is qualified, it is determined that the angle valve to be tested has passed the fatigue test; if the test is unqualified, it is determined that the angle valve to be tested has not passed the fatigue test.

8. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 7, characterized in that: If the number of times the angle valve to be tested is opened and closed reaches the second preset number, the test is suspended and the performance of the angle valve to be tested is tested. If the test is qualified, the test is continued; if the test is unqualified, the test is stopped and it is determined that the angle valve to be tested has not passed the fatigue test, and the second preset number of times is less than the first preset number of times.

9. The operating method of the multifunctional testing system of the vacuum angle valve according to claim 1, characterized in that: The multifunctional test system of the vacuum angle valve further comprises a pressure sensing module, and the pressure sensing module is electrically connected to the control module. If a pressure test is performed on the angle valve to be tested, the specific operation steps include: Switch the air supply from the air control end of the angle valve to be measured to the air supply to the pipeline inlet of the angle valve to be measured; The pipeline outlet of the angle valve to be measured is vacuumed by the negative pressure generating module; The pressure regulating module is controlled by the control module to gradually increase the air pressure value at the pipeline inlet of the angle valve to be tested; When the position sensing module detects that the actuator of the angle valve to be tested is located at the start position, the control module records the air pressure value measured by the pressure sensing module at this time as the withstand pressure value of the angle valve to be tested; The control module compares the withstand pressure value with a preset third pressure value to determine whether the withstand pressure value is normal.

10. The operating method of the multifunctional testing system of the vacuum angle valve according to any one of claims 1 to 8, characterized in that: When the angle valve to be tested is subjected to stroke, response time, control pressure or fatigue test, the negative pressure generating module is started to evacuate the pipe outlet of the angle valve to be tested, so that the pipe outlet of the angle valve to be tested is in a negative pressure state; Alternatively, the negative pressure generating module is closed so that the outlet of the angle valve pipeline to be tested is in a normal pressure state.

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