Method of operating a multifunctional test system for vacuum angle valves

Abstract

The embodiment of the application discloses an operating method of a multifunctional test system of a vacuum angle valve, the multifunctional test system of the vacuum angle valve comprising a control module, a position sensing module, a pressure regulating module and a negative pressure generating module; the operating method comprising: acquiring position information of the position sensing module through the control module, adjusting the pressure of a gas control end or a pipeline inlet of a to-be-tested angle valve by using the pressure regulating module, adjusting the negative pressure of a pipeline outlet of the to-be-tested angle valve by using the negative pressure generating module, and realizing test on at least two of stroke, response time, control pressure, fatigue test and resistance pressure of the to-be-tested angle valve. The operating method of the embodiment of the application can test the to-be-tested angle valve in multiple ways to meet the scene requirements of frequent testing and debugging in the 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 particularly relates to an operating method of a multifunctional testing system for a vacuum angle valve. BACKGROUND

[0002] In order to meet the use requirements of actual application scenarios, the performance parameters of the pneumatic angle valve need to have relatively strict technical requirements. Therefore, in the process of designing and developing a new pneumatic angle valve, the performance parameters such as the movement stroke, response time, control pressure, tolerance pressure and service life of the pneumatic angle valve are usually tested. The product is detected and iteratively optimized multiple times in the development process to achieve the expected specification standard, thereby providing a strong guarantee for the industrial production of qualified products.

[0003] The existing commonly used pneumatic angle valve performance testing equipment is usually a single-function device, which can only test a certain specification performance. If multiple performance parameters need to be tested, multiple test equipment needs to be purchased for the test items, and a dedicated laboratory needs to be arranged, which is expensive and occupies a large space. SUMMARY

[0004] The operating method of the multifunctional testing system for the vacuum angle valve provided in the embodiments of the present application can test multiple items of the to-be-tested angle valve, and the multifunctional testing system platform for the vacuum angle valve occupies a small space.

[0005] The operating method of the multifunctional testing system for the vacuum angle valve provided in the embodiments of the present application, the multifunctional testing system for the vacuum angle valve includes a control module, a position sensing module, a pressure regulating module and a negative pressure generating module, the control module is electrically connected with 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 to-be-tested angle valve and is used for sensing the position of the execution assembly of the to-be-tested angle valve; the pressure regulating module is in communication with the gas control end of the to-be-tested angle valve and the pipeline inlet and is used for regulating the pressure of the gas control end or the pipeline inlet of the to-be-tested angle valve; the negative pressure generating module is in communication with the pipeline outlet of the to-be-tested angle valve and is used for regulating the negative pressure of the pipeline outlet of the to-be-tested angle valve.

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

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

[0008] The gas control end of the angle valve to be tested is vented to close the angle valve to be tested, and the closing position of the actuating assembly of the angle valve to be tested is recorded by the position sensing module;

[0009] The gas control end of the angle valve to be tested is supplied with gas to open the angle valve to be tested, and the opening position of the actuating assembly of the angle valve to be tested is recorded by the position sensing module;

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

[0011] In some exemplary embodiments, if the 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 actuating assembly of the angle valve to be tested is recorded by the position sensing module;

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

[0014] In some exemplary embodiments, if the response time test is performed on the 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 opened to the position, the position sensing module sends an opening-to-position 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-to-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 closed to the position, the position sensing module sends a closing-to-position 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-to-position signal.

[0021] In some exemplary embodiments, if the response time test is performed on the angle valve to be tested, the specific operation steps further include:

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

[0023] In some example embodiments, the operation method further comprises:

[0024] selecting one of the travel test, the response time, the control pressure, the fatigue test and the pressure resistance;

[0025] setting the corresponding parameters of the selected test item, and starting the automatic test.

[0026] In some example embodiments, the multifunctional test system of the vacuum angle valve further comprises a pressure sensing module electrically connected with the control module, and if the control pressure test is performed on the to-be-tested angle valve, the specific operation steps comprise:

[0027] controlling the pressure adjusting module to act by the control module, so as to gradually increase the air pressure value of the control gas end of the to-be-tested angle valve;

[0028] if the position sensing module detects that the execution assembly of the to-be-tested angle valve is located 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 starting control pressure value with a preset first pressure value to determine whether the starting control pressure value is normal;

[0030] if the position sensing module detects that the execution assembly of the to-be-tested angle valve is located at the opening-to-position, the control module records the air pressure value measured by the pressure sensing module at this time as the opening-to-position control pressure value;

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

[0032] In some example embodiments, if the fatigue test is performed on the to-be-tested angle valve, the specific operation steps comprise:

[0033] repeatedly opening and closing the to-be-tested angle valve, and recording the number of times of opening and closing of the to-be-tested angle valve by the control module;

[0034] if the number of times of opening or closing of the to-be-tested angle valve does not reach a first preset number of times, and the to-be-tested angle valve is damaged, the test is stopped, and it is determined that the to-be-tested angle valve fails the fatigue test;

[0035] if the number of times of opening and closing of the to-be-tested angle valve both reach the first preset number of times, the test is stopped, the performance of the to-be-tested angle valve is detected, if the detection is qualified, it is determined that the to-be-tested angle valve passes the fatigue test, and if the detection is unqualified, it is determined that the to-be-tested angle valve fails the fatigue test.

[0036] In some example embodiments, if the opening and closing times of the angle valve to be tested reach a second preset number of times, the test is paused, the performance of the angle valve to be tested is detected, if the detection is qualified, the test is continued, if the detection is unqualified, the test is stopped, and it is determined that the angle valve to be tested fails the fatigue test, and the second preset number of times is less than the first preset number of times.

[0037] In some example embodiments, the multifunctional test system of the vacuum angle valve further comprises a pressure sensing module, which is electrically connected with the control module, and if the pressure test of the angle valve to be tested is performed, the specific operation steps include:

[0038] The gas supply to the control gas end of the angle valve to be tested is switched to the gas supply to the pipeline inlet of the angle valve to be tested;

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

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

[0041] When the position sensing module detects that the execution assembly of the angle valve to be tested is located at the starting position, the control module records the gas pressure value measured by the pressure sensing module at this time as the pressure resistance value of the angle valve to be tested;

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

[0043] In some example embodiments, when the stroke, response time, control pressure or fatigue test of the angle valve to be tested is performed, the pipeline outlet of the angle valve to be tested is vacuumed by starting the negative pressure generating module, so that the pipeline outlet of the angle valve to be tested is in a negative pressure state;

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

[0045] Advantages:

[0046] 1. The operation method of the example embodiments can perform multiple tests on the angle valve to be tested to meet the scene requirements of frequent testing and debugging in the development process of the pneumatic angle valve. Moreover, the multiple tests on the angle valve to be tested can not only ensure its safety and reliability, but also improve its overall performance and application range, reduce maintenance costs, and prolong the service life.

[0047] 2. The operation method of this application embodiment can perform stroke testing, response testing, control pressure testing, and fatigue testing on the angle valve under test. In other words, the multi-functional testing system for vacuum angle valves integrates multiple performance testing functions, and the overall multi-functional testing system platform for vacuum angle valves occupies little space. During different performance testing processes, some pipelines and valves of the multi-functional testing system for vacuum angle valves in this application embodiment can be reused, thus saving pipelines and valves and reducing costs.

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

[0049] 4. Stroke testing is an important means of ensuring that the angle valve under test meets relevant standards and specifications. Through testing, it can be verified whether the angle valve meets design requirements and safety standards. Stroke testing can also optimize the operating parameters of the pneumatic angle valve, reducing unnecessary energy consumption and media waste, thereby improving production efficiency.

[0050] 5. By setting the position measurement to be performed after the first preset time, the angle valve under test can be ensured to be closed and remain stable as much as possible, thereby improving the accuracy of the stroke test. By setting the position measurement to be performed after the second preset time, the angle valve under test can be ensured to be opened to the correct position and remain stable as much as possible, thereby improving the accuracy of the stroke test.

[0051] 6. By verifying the response speed of the angle valve under test, we can ensure that it can respond quickly and avoid safety accidents caused by slow response. Response time testing can help identify problems in the design and manufacturing process. By optimizing the design and improving the manufacturing process, we can reduce frequent maintenance caused by design defects, thereby extending the service life of the angle valve under test. Response time testing can also verify whether the angle valve under test meets relevant standards and regulations, ensuring product compliance.

[0052] 7. By conducting a control pressure test on the angle valve under test, that is, by adjusting the air pressure, the valve opening 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.

[0053] 8. Fatigue testing can simulate the long-term operation of the angle valve under test under actual working conditions, evaluate its consistency and reliability after multiple operations, and verify the valve's durability and stability. Through fatigue testing, the performance stability of the angle valve under test can be evaluated during long-term use, potential failure risks can be identified in advance, and the angle valve under test can be ensured not to leak or malfunction under extreme conditions, thus protecting the safety of personnel and equipment.

[0054] 9. The pressure test can verify the structural integrity and sealing performance of the angle valve under test in a high-pressure environment, ensuring that the angle valve under test will not leak or fail under extreme conditions, thereby protecting personnel and equipment. Through pressure testing, the working capacity of the angle valve under test under a certain pressure can be evaluated, thereby predicting its durability and service life in long-term operation, ensuring that the valve remains stable in long-term use. BRIEF DESCRIPTION OF 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 as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

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

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

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

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

[0060] Figure 5 A step diagram of an operation method of a multifunctional test system for a vacuum angle valve in another embodiment of the present application;

[0061] Figure 6 A step diagram of a stroke test of a multifunctional test system for a vacuum angle valve in an embodiment of the present application;

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

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

[0064] Figure 9 A step diagram of a response time test of a multifunctional test system for a vacuum angle valve in another embodiment of the present application;

[0065] Figure 10A schematic diagram of a step of pressure test for a multifunctional test system of a vacuum angle valve in an embodiment of the present application;

[0066] Figure 11 A schematic diagram of a step of fatigue test for a multifunctional test system of a vacuum angle valve in an embodiment of the present application;

[0067] Figure 12 A schematic diagram of a step of pressure resistance test for a multifunctional test system of a vacuum angle valve in an embodiment of the present application.

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

[0069] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0070] As shown in Figures 1-2 the first aspect of the present embodiment provides a multifunctional test system 100 of a vacuum angle valve, which is used for testing the performance of a to-be-tested angle valve 200, and the to-be-tested angle valve 200 can be a pneumatic angle valve.

[0071] The multifunctional test system 100 of the 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 includes a plurality of valves and electrically controlled elements such as a pressure gauge 151, and the arrow pointing to the electrically controlled element represents signal input, and the arrow away from the electrically controlled element represents signal output.

[0072] The pressure regulating module 110 is configured to regulate the pressure of the gas at the outlet of the pressure regulating module 110, and the pressure regulating module 110 is exemplarily an electric proportional valve. The control module 140 sends a target pressure to the pressure regulating module 110, and the pressure regulating module 110 performs a regulating action to adjust the pressure of the gas at the outlet of the pressure regulating module 110 to the target pressure, so that the control module 140 can obtain the pressure at the outlet of the pressure regulating module 110 according to the target pressure. The inlet of the pressure regulating module 110 is configured to be in communication with the pressurized gas supply module 300, and the pressurized gas supply module 300 can be an air compressor, a gas tank or the like. The inlet of the pressure regulating module 110 is in communication with the pressurized gas supply module 300, so that the compressed gas is introduced into the multi-functional 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 in communication with the outlet of the pressure regulating module 110, and the first electrically controlled valve 121 is configured to control the opening and closing of the gas passage of the angle valve 200 to be tested. The first electrically controlled valve 121 is a normally open valve.

[0075] The inlet of the second electrically controlled valve 122 is in communication with the outlet of the first electrically controlled valve 121, and the outlet of the second electrically controlled valve 122 is configured to be in communication with the gas control end of the angle valve 200 to be tested. The second electrically controlled valve 122 is configured to supply gas to the gas control end of the angle valve 200 to be tested. When the second electrically controlled valve 122 supplies gas to the gas control end of the angle valve 200 to be tested, the angle valve 200 to be tested is opened. When the second electrically controlled valve 122 releases gas to the gas control end of the angle valve 200 to be tested, the angle valve 200 to be tested is closed. It should be noted that the pneumatic angle valve can have one gas control end or two gas control ends according to the type of the pneumatic angle valve. For example, the pneumatic angle valve has only a main valve, or the pneumatic angle valve has a main valve and a preliminary exhaust valve. Correspondingly, the second electrically controlled valve is a three-position five-way electromagnetic valve, i.e., the second electrically controlled valve has multiple gas outlets, which can be adapted to the pneumatic angle valve having one gas control end or two gas control ends, and has a wider range of adaptation. The following embodiments are described by taking the pneumatic angle valve having a main valve and a preliminary exhaust valve as an example.

[0076] The pressure sensing module 123 is connected between the first electric control valve 121 and the second electric control valve 122, and is used to measure the air pressure between the first electric control valve 121 and the second electric control 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 leaks. For example, by closing the first electric control valve 121, opening the second electric control valve 122, and monitoring the air pressure of the pressure sensing module 123, if the air pressure of the pressure sensing module 123 decreases, it indicates that the angle valve 200 to be tested leaks. If the air pressure of the pressure sensing module 123 does not change, it indicates that the angle valve 200 to be tested does not leak. The pressure sensing module 123 can be an electric pressure gauge 151, which can set the upper and lower limits of the range of air pressure. If the current air pressure intensity exceeds the set upper and lower limits, the corresponding electrical signal will be output, thereby prompting or alarming.

[0077] The position sensing module 124 is arranged corresponding to the angle valve 200 to be tested. The position detection module is used to detect the position information of the execution assembly of the angle valve 200 to be tested, and sends the detected position information of the execution assembly 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 execution assembly 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 execution assembly 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 half-open half-closed state between the valve opening state and the valve closing state. The position detection module can also detect the position of the execution assembly of the angle valve 200 to be tested when the angle valve 200 to be tested is in the half-open half-closed state.

[0078] The negative pressure generating module 130 is used to communicate with the pipeline outlet of the angle valve 200 to be tested, so as to perform vacuumization on the pipeline of the angle valve 200 to be tested. The negative pressure generating module 130 can be a vacuum pump.

[0079] The control module 140 is electrically connected with the pressure regulating module 110, the first electric control valve 121, the second electric control 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 pressure regulating module 110, the first electric control valve 121, the second electric control valve 122, and the negative pressure generating module 130 to act. For example, the control module 140 can have on-off input and output, thereby controlling multiple electromagnetic valve switches. The control module 140 can receive information from the pressure sensing module 123 and the position sensing module 124. The control module 140 can also integrate the functions of timing and counting. Figure 1 Due to the limited placement position, the electrical connection relationship between the control module 140 and other modules cannot be shown.

[0080] Understandably, when the negative pressure generating module 130 stops operating, the pipeline of the angle valve under test 200 is under normal pressure. In this state, the angle valve under test 200 experiences relatively low resistance when opening or closing. However, in actual use, the pipeline of the angle valve under test 200 is often under negative pressure, resulting in relatively high resistance when opening or closing. Therefore, the performance of the angle valve under test 200 under pressure will differ from that under no-pressure conditions.

[0081] The multifunctional testing system 100 for vacuum angle valves in this embodiment can use the negative pressure generating module 130 to evacuate the pipeline of the angle valve 200 under test, thereby creating a negative pressure in the pipeline and simulating the real-world operating environment of the angle valve 200. This makes the test data from the multifunctional testing system 100 for vacuum angle valves more accurate. Alternatively, the negative pressure generating module 130 can be turned off without evacuating the pipeline of the angle valve 200 under test to simulate the ideal operating environment of the angle valve 200.

[0082] Furthermore, most common performance testing equipment is single-function, capable of testing only one specific performance specification. Testing multiple performance parameters requires purchasing multiple devices for each test item, necessitating a dedicated laboratory, resulting in high costs and large space requirements. In contrast, the multi-functional testing system 100 for vacuum angle valves in this embodiment can perform stroke testing, response testing, control pressure testing, and fatigue testing on the angle valve 200 under test. In other words, the multi-functional testing system 100 integrates multiple performance testing functions, and the overall platform occupies a small space. During different performance testing processes, some pipelines and valves of the multi-functional testing system 100 can be reused, thus saving pipelines and valves and reducing costs. The specific testing method for the angle valve 200 under test will be described in detail later and will not be discussed here.

[0083] like Figure 2 As shown, in some exemplary embodiments, the test path 120 further includes a third solenoid valve 125, a fourth solenoid valve 126, and a negative pressure sensing module 127. The third solenoid valve 125, the fourth solenoid 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 solenoid valve 125 and the fourth solenoid valve 126, and can receive information from the negative pressure sensing module 127.

[0084] The inlet of the third solenoid valve 125 is connected to the outlet of the pressure regulating module 110, and the outlet of the third solenoid valve 125 is used to connect to the pipeline inlet of the angle valve 200 under test. The third solenoid valve 125 is used to control the opening and closing of the pipeline passage of the angle valve 200 under test, and the third solenoid valve 125 is a normally closed valve. Since the third solenoid valve does not need to be connected to multiple output ports, the third solenoid valve 125 can be a two-position two-way solenoid valve, thereby saving costs.

[0085] The inlet of the fourth solenoid valve 126 is used to connect with the pipeline outlet of the angle valve 200 under test, and the outlet of the fourth solenoid valve 126 is connected with the negative pressure generating module 130. The fourth solenoid valve 126 is used to control whether the negative pressure generating module 130 is connected with the pipeline outlet of the angle valve 200 under test. The fourth solenoid valve 126 can be an electromagnetic angle valve. Electromagnetic angle valves can maintain stable operation even in extreme environments and are relatively reliable.

[0086] The negative pressure sensing module 127 is located at the inlet of the fourth solenoid valve 126 and is used to measure the negative pressure value at the outlet of the pipe of the angle valve 200 under test, and can send the negative pressure data at the outlet of the pipe of the angle valve 200 under test to the control module 140.

[0087] The multi-functional testing system 100 for vacuum angle valves in this embodiment can pressurize the inlet of the pipe of the angle valve 200 under test by opening the third solenoid valve 125, and can evacuate the outlet of the pipe of the angle valve 200 under test by opening the fourth solenoid valve 126, thereby enabling pressure resistance testing of the angle valve 200 under test.

[0088] like Figure 2 As shown, in some exemplary embodiments, there are multiple test paths 120, which are connected in parallel. Each test path 120 can test one angle valve 200 under test, and multiple test paths can test multiple angle valves 200 under test simultaneously, thereby improving testing efficiency and saving testing time. Optionally, there are two test paths 120, which can improve efficiency without making the multifunctional testing system 100 for vacuum angle valves too large.

[0089] It should be noted that multiple test paths 120 can be tested simultaneously, or only some test paths 120 can be tested while others are not. Understandably, closing the first solenoid valve 121 prevents air from entering the control end of the test valve; closing the third solenoid valve prevents air from entering the inlet of the angle valve 200 under test; and closing the fourth solenoid valve prevents vacuuming at the outlet of the test valve. When a particular test path 120 is not being tested, it can be isolated by closing the first solenoid valve 121, the third solenoid valve, and the fourth solenoid valve.

[0090] likeFigures 3-4 As shown, in some exemplary embodiments, the multifunctional test system 100 of the vacuum angle valve further comprises a pressure gauge 151, a stop valve 152 and a gas release valve 153.

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

[0092] The stop valve 152 is connected between the pressure gauge 151 and the pressure regulating module 110. The stop valve 152 is used to shut off the gas 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 stop valve 152 is opened. When the multifunctional test system 100 of the vacuum angle valve needs to be closed, the stop valve 152 can be closed, so that the multifunctional test system 100 of the vacuum angle valve is isolated from the pressurized gas supply module 300, to facilitate maintenance and other operations. The stop valve 152 can control the gas inlet of the entire multifunctional test system 100 of the vacuum angle valve. Under normal circumstances, the stop valve 152 is opened. Since the number of opening and closing of the stop valve 152 is relatively small, the stop valve 152 can be a manual valve to save costs.

[0093] The gas release valve 153 is connected with the outlet of the pressure regulating module 110. The gas release valve 153 is used to release the pressure of 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 operating, the gas release valve 153 can be opened to release the pressure, so as to avoid the pipeline and valve of the multifunctional test system 100 of the vacuum angle valve being under pressure for a long time, and to improve the service life of the multifunctional test system 100 of the vacuum angle valve. Under normal circumstances, the gas release valve 153 is closed. Since the number of opening and closing of the gas release valve 153 is relatively small, the gas release valve 153 can be a manual valve to save costs.

[0094] In some example embodiments, the control module 140 comprises a control unit and a touch screen 142, the touch screen 142 is electrically connected with the control unit, the touch screen 142 sends touch instructions 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 the keys can be reduced. The multifunctional test system 100 of the vacuum angle valve further comprises an operation button and an emergency stop button, both of which are electrically connected with the control unit. The operation button is used to control the multifunctional test system 100 of the vacuum angle valve, and for some more frequent operations, such as switching the to-be-tested angle valve 200 through the operation button or switching the test main valve or the initial valve through the operation button, the operation efficiency of the operation button will be higher. The emergency stop button is used to stop the test in an emergency. Obviously, the speed of tapping the emergency stop button is faster than operating on the touch screen 142, so that the risk can be reduced and the loss can be reduced.

[0095] As shown in Figure 4 In some example embodiments, the multifunctional test system 100 of the vacuum angle valve comprises an outer cover, the touch screen 142, the operation button, the emergency stop button, the pressure gauge 151, the stop valve 152 and the air release 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, so that the user can conveniently touch or operate. The pressure gauge 151 is arranged on the outer surface of the outer cover, so that the user can conveniently observe the pressure. The stop valve 152 and the air release valve 153 are arranged on the outer surface of the outer cover, so that the user can conveniently screw to close or open the valves.

[0096] The pressure regulating module 110, the first electric control valve 121, the second electric control valve 122, the pressure sensing module 123, the third electric control valve 125, the fourth electric control 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 need to be manually operated, 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 work.

[0097] As shown in Figures 1-2 In some example embodiments, the position sensing module 124 comprises a laser sensor 1241 and a Hall sensor 1242, the laser sensor 1241 is arranged opposite to the actuating assembly of the to-be-tested angle valve 200, and the Hall sensor 1242 is arranged on the to-be-tested angle valve 200.

[0098] The laser sensor 1241 measures the straight-line distance between the target object and the laser sensor 1241 based on the principle of laser reflection. The laser sensor 1241 can be installed directly above the angle valve 200 under test, with the laser beam aligned with the actuating component of the angle valve 200. The laser sensor 1241 can measure both the main valve's travel and the initial valve travel. The laser sensor 1241 offers advantages such as non-contact, long-distance measurement, high speed, high accuracy, large measuring range, and strong resistance to photoelectric interference.

[0099] The Hall sensor 1242 can be understood as a magnetic switch. It monitors the position of the main valve 200 by sensing the position of the magnetic ring of the main valve. The Hall sensor 1242 can be installed in the guide groove of the main valve 200. Each position sensing module 124 includes two Hall sensors 1242, which correspond to the open and closed positions of the main valve, respectively. When the main valve of the main valve 200 is open, the Hall sensor 1242 in the open position emits a signal; when the main valve of the main valve 200 is closed, the Hall sensor 1242 in the closed position emits a signal. The Hall sensor 1242 enables non-contact measurement, reducing mechanical wear and avoiding errors introduced by contact. The Hall sensor 1242 exhibits good adaptability and stability to environmental changes, such as temperature fluctuations and humidity changes, 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 vacuum angle valves includes a machine base and a sliding module disposed on the machine base. A laser sensor 1241 is disposed on the sliding module and is positioned above the angle valve 200 to be tested. 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 horizontal rod, and a slider. The vertical rod is fixedly mounted on the platform. The connecting block is rotatably mounted on the vertical rod and also slidably mounted on the vertical rod. The horizontal rod is connected to the connecting block, and the slider is slidably mounted on the horizontal rod. The laser sensor 1241 is mounted on the slider. The laser sensor 1241 can rotate around the vertical rod with the connecting block, slide vertically with the connecting block, and slide horizontally with the slider. This allows the position of the laser sensor 1241 to be arbitrarily adjusted. The laser sensor 1241 can be directly facing the actuator of the angle valve 200 under test, and the actuator of the angle valve 200 under test can be within the measuring range of the laser sensor 1241.

[0102] In some exemplary embodiments, the multifunctional testing system 100 for vacuum angle valves 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 power the multi-functional testing system 100 for vacuum angle valves. Specifically, the power supply can power the control module 140, pressure regulation module 110, first solenoid valve 121, second solenoid valve 122, pressure sensing module 123, negative pressure generating module 130, position sensing module 124, third solenoid valve 125, fourth solenoid valve 126, negative pressure sensing module 127, first temperature sensor, second temperature sensor, first fan and second fan.

[0104] The first temperature sensor corresponds to the power supply module and is used to measure the temperature of the power supply module. The second temperature sensor corresponds to the negative pressure generating module 130 and is used to measure the temperature of the negative pressure generating module 130. The power supply module and the negative pressure generating module 130 are components that are prone to heat generation, and therefore require close monitoring.

[0105] The first fan is used for suction, and the second fan is used for blowing. The first and second fans work together to accelerate the airflow, thereby removing the heat from the multi-functional test system 100 of the vacuum angle valve.

[0106] When the temperature value of either the first or second temperature sensor exceeds a first threshold, both the first and second fans start to cool the multi-functional testing system 100 of the vacuum angle valve. When the temperature values ​​of either the first or second temperature sensor are below a second threshold, both the first and second fans stop to save power. The first and second thresholds can be set according to actual conditions and are not limited here. For example, the difference between the first and second thresholds is five, thereby avoiding frequent start-stop of the first and second fans.

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

[0108] like Figures 3-4 As shown, the second aspect of this application provides an operation method for a multifunctional testing system 100 for vacuum angle valves, such as... Figure 3 As shown, the multi-functional testing system 100 for vacuum angle valves 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 to the angle valve under test 200 and is used to sense the position of the actuator of the angle valve under test 200; the pressure regulating module 110 is connected to the air control end and the pipeline inlet of the angle valve under test 200 and is used to regulate the pressure of the air control end or the pipeline inlet of the angle valve under test 200; the negative pressure generating module 130 is connected to the pipeline outlet of the angle valve under test 200 and is used to regulate the negative pressure at the pipeline outlet of the angle valve under test 200.

[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 control end or pipeline inlet of the angle valve 200 under test is adjusted by the pressure adjustment module 110, and the negative pressure of the pipeline outlet of the angle valve 200 under test is adjusted by the negative pressure generating module 130, so as to perform tests on at least two of the stroke, response time, control pressure, fatigue test and pressure resistance of the angle valve 200 under test.

[0113] The operating method described in this embodiment allows for the performance of multiple tests on the angle valve 200 under test, meeting the needs of frequent testing and debugging during the development of pneumatic angle valves. Furthermore, performing multiple tests on the angle valve 200 not only ensures its safety and reliability but also improves its overall performance and applicability, reduces maintenance costs, and extends its service life.

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

[0115] Choose one of the following test items: travel test, response time, control pressure, fatigue test, and stress tolerance test.

[0116] Specifically, the touchscreen can display icons for travel test, response time, control pressure, fatigue test, and endurance pressure, allowing users to select test items by touching the corresponding icons.

[0117] After setting the corresponding parameters for the selected test item, start the automatic test.

[0118] By setting the corresponding parameters of the selected test items, the pass / fail criteria for the test items can be adjusted, thereby making the test more flexible and meeting different testing needs.

[0119] The operation method of the embodiment can automatically perform the test. The automated test can ensure accurate execution of the test process, avoid human errors and omissions, 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 the test personnel.

[0120] As shown in Figure 6 In some exemplary embodiments, if the 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 gas pressure value of the control gas passage of the test (such as setting 0.45 MPa), and setting the tolerance range of the gas pressure value of the control gas passage (such as setting 0.1 MPa).

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

[0122] In step S101, the control gas end of the angle valve 200 to be tested is vented 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 test system as an example, the angle valve 200 to be tested is in a closed state under no pressure. The control module 140 can issue an instruction to control the second electric control valve 122 to vent, 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] In step S102, the control gas end of the angle valve 200 to be tested is supplied with gas to open the angle valve 200 to be tested, and the opening position of the actuator of the angle valve 200 to be tested is recorded by the position sensing module 124.

[0125] The control module 140 can issue an instruction to control the second electric control valve 122 to charge the angle valve 200 to be tested, so that the angle valve 200 to be tested is opened, and the laser sensor 1241 measures the position of the actuator of the angle valve 200 to be tested when it 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 closing position and the opening position, the stroke of the angle valve 200 to be tested can be obtained.

[0128] The stroke test is an important means to ensure that the angle valve 200 to be tested meets the 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, and the production efficiency can be improved.

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

[0130] Step S201: After the angle valve under test 200 is closed for a first preset time, the closing position of the actuator of the angle valve under test 200 is recorded by the position sensing module 124.

[0131] By setting the position measurement to occur after a first preset time, the angle valve 200 under test can be ensured to close completely and remain stable, thereby improving the accuracy of the stroke test. The first preset time depends on the response time of the angle valve 200 under test and is not limited here. For example, the first preset time can be 3 seconds, which ensures complete closure without consuming excessive time.

[0132] Step S202: After the angle valve under test 200 is opened for a second preset time, the opening position of the actuator of the angle valve under test 200 is recorded by the position sensing module 124.

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

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

[0135] The specific steps for response time testing include:

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

[0137] For example, the control module 140 controls the second solenoid valve 122 to inflate the angle valve 200 under test, thereby controlling the opening of the angle valve 200. Therefore, the control module 140 can use the signal to open the second solenoid valve 122 as an opening signal; after issuing the opening signal, the angle valve 200 under test begins to open. It should be noted that the opening time of the second solenoid valve 122 is very short compared to the opening time of the angle valve 200 under test; therefore, the delay caused by the opening of the second solenoid valve 122 is negligible.

[0138] Step S302, after the opening to position of the angle valve 200, the position sensing module 124 sends an opening to position signal, and the control module 140 stops timing.

[0139] The position sensing module 124 sends an opening to position signal after detecting the opening to position of the angle valve 200, and the opening to position signal can be sent by the laser sensor 1241 or the Hall sensor 1242.

[0140] Step S303, the control module 140 calculates the opening response time of the angle valve 200 according to the time difference between the opening signal and the opening to position signal.

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

[0142] Step S304, the control module 140 sends a closing signal for closing the angle valve 200, and starts timing.

[0143] Exemplarily, the control module 140 controls the second electric control valve 122 to bleed the angle valve 200, so as to control the closing of the angle valve 200, and thus the control module 140 can take the pressure relief signal of the second electric control valve 122 as the closing signal. After sending the closing signal, the angle valve 200 starts to close. It should be noted that the bleeding time of the second electric control valve 122 is very short relative to the closing time of the angle valve 200, and thus the delay caused by the bleeding of the second electric control valve 122 can be ignored.

[0144] Step S305, after the closing to position of the angle valve 200, the position sensing module 124 sends a closing to position signal, and the control module 140 stops timing.

[0145] The position sensing module 124 sends a closing to position signal after detecting the closing to position of the angle valve 200, and the closing to position signal can be sent by the laser sensor 1241 or the Hall sensor 1242.

[0146] Step S306, the control module 140 calculates the closing response time of the angle valve 200 according to the time difference between the closing signal and the closing to position signal.

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

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

[0149] Through the test, the response speed of the to-be-tested angular valve 200 can be verified to ensure 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, optimize the design and improve the manufacturing process, reduce frequent maintenance caused by design defects, and prolong the service life of the to-be-tested angular valve 200. Through the response time test, it can be verified whether the to-be-tested angular valve 200 meets the requirements of relevant standards and regulations to ensure the compliance of the product.

[0150] As shown in Figure 9 in some exemplary embodiments, if the to-be-tested angular valve 200 is subjected to the response time test, the method further includes the steps of:

[0151] Step S401, before the control module 140 sends an opening signal to open the to-be-tested angular valve 200, the opening to position and the closing to position of the to-be-tested angular valve 200 are set.

[0152] By setting the opening to position, the time required for the to-be-tested angular valve 200 to open to different degrees can be measured. By setting the closing to position, the time required for the to-be-tested angular valve 200 to close to different degrees can be measured.

[0153] As shown in Figure 10 in some exemplary embodiments, the multifunctional test system 100 of the vacuum angular valve further includes a pressure sensing module 123, which is electrically connected with the control module 140. If the to-be-tested angular valve 200 is subjected to the control pressure test, the parameters of the control pressure test can be set first, and the parameters of the control pressure test exemplarily include setting the gas pressure value of the test control gas channel, the tolerance range of the gas pressure value of the control gas channel, the test environment selection, the valve opening position setting, the valve closing position setting, the initial pressure setting value when the to-be-tested angular valve starts, the control pressure delay, etc.

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

[0155] Step S501, the control module 140 controls the pressure adjusting module 110 to act to gradually increase the gas pressure value of the control gas end of the to-be-tested angular valve 200.

[0156] By opening the pressure adjusting module 110, the gas pressure value of the control gas end of the to-be-tested angular valve 200 can be increased.

[0157] Step S502, when the position sensing module 124 detects that the execution assembly of the angle valve under test 200 is located at the starting position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the starting control pressure value.

[0158] The starting position of the angle valve under test 200 can be related to the closing position, for example, the position of the execution assembly after moving 1mm in the closing position is the starting position. Alternatively, the starting position of the angle valve under test 200 can also be independent of the closing position, which is set by the user.

[0159] Step S503, the control module 140 compares the starting control pressure value with the preset first pressure value to determine whether the starting control pressure value is normal.

[0160] The first pressure value is the starting pressure value designed for the angle valve under test 200, 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 under test 200 is qualified, and 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 under test 200 is unqualified.

[0161] Step S504, when the position sensing module 124 detects that the execution assembly of the angle valve under test 200 is located at the fully open position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the fully open control pressure value.

[0162] By continuously opening the opening degree of the pressure regulating module 110, the air pressure value at the control end of the angle valve under test 200 can continue to increase, so that the opening degree of the angle valve under test 200 continues to increase, until the execution assembly of the angle valve under test 200 is located at the fully open position.

[0163] Step S505, the control module 140 compares the fully open control pressure value with the preset second pressure value to determine whether the fully open control pressure value is normal.

[0164] The second pressure value is the fully open pressure value designed for the angle valve under test 200, and the fully open control pressure value is the actually measured fully open pressure value. When the difference between the second pressure value and the fully open control pressure value is within the tolerance range, the fully open pressure value of the angle valve under test 200 is qualified, and when the difference between the second pressure value and the fully open control pressure value is outside the tolerance range, the fully open pressure value of the angle valve under test 200 is unqualified.

[0165] By controlling the pressure test of the angle valve under test 200, that is, by adjusting the air pressure, the opening degree of the valve can be accurately controlled, higher precision and accuracy can be achieved, and problems in the design and manufacturing process can be found to optimize product performance.

[0166] AsFigure 11 As shown, in some exemplary embodiments, if the angle valve 200 to be tested is subjected to fatigue testing, the parameters of the fatigue testing can be set first, which exemplarily include setting the gas pressure value of the control gas channel of the test, the tolerance range of the gas pressure value of the control gas channel, the test environment selection, the target number setting, the number of pressure maintaining tests, the maximum response time, etc.

[0167] The specific operation steps of the fatigue testing include:

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

[0169] Step S602, if the number of opening and closing of the angle valve 200 to be tested 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 fails to pass the fatigue testing.

[0170] The first preset number is the qualified number of opening and closing of the angle valve 200 to be tested. If the number of opening and closing of the angle valve 200 to be tested 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 opening and closing of the angle valve 200 to be tested reaches the first preset number, the test is stopped, the performance of the angle valve 200 to be tested is detected, if the detection is qualified, it is determined that the angle valve 200 to be tested passes the fatigue testing, if the detection is unqualified, it is determined that the angle valve 200 to be tested fails to pass the fatigue testing.

[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 decreases obviously after being opened and closed for the first preset number of times, it is also determined to be 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 being opened and closed for the first preset number of times, it is determined to be qualified.

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

[0174] In some exemplary embodiments, when the number of opening and closing of the to-be-tested angular valve 200 reaches a second preset number, the test is paused, the performance of the to-be-tested angular valve 200 is detected, if the detection is qualified, the test is continued, if the detection is unqualified, the test is stopped, and it is determined that the to-be-tested angular valve 200 fails the fatigue test, and the second preset number is less than the first preset number.

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

[0176] The air tightness includes vacuum degree monitoring and pressure maintaining test. For example, the vacuum degree of the pipeline outlet of the to-be-tested angular valve 200 during each opening / closing action of the to-be-tested angular valve 200 can be monitored. The vacuum degree of the to-be-tested angular valve 200 can be determined by the parameters of the negative pressure sensing module 127. When the vacuum degree of the to-be-tested angular valve 200 is unqualified, it means that the to-be-tested angular valve 200 leaks. At this time, the negative pressure of the negative pressure sensing module 127 will decrease.

[0177] When the angular valve is doing fatigue test, the sealing devices related to the gas control channel in the internal part of the angular valve will also continuously displace and move to produce wear. Therefore, the air tightness of the gas control channel needs to be monitored. The gas control channel is filled with a preset positive pressure (such as 0.7 MPa), the first electric control valve 121 is closed, and a preset time (such as 10 min) is maintained. At the same time, the pressure value of the pressure sensing module 123 is monitored. When the pressure value of the pressure sensing module 123 changes to be less than the preset pressure value, it is determined that the air tightness is abnormal, that is, the wear of the sealing devices related to the internal gas control channel of the angular valve affects the air tightness of the system. In addition, because the pressure maintaining time is long, it is not possible to perform air tightness monitoring every time the angular valve is opened / closed in the fatigue test of the angular valve. Therefore, the experimental system can preset the number X of air tightness detection actions (such as entering air tightness monitoring once every 1000 opening / closing times).

[0178] When the angular valve is doing fatigue test, the sealing devices related to the pipeline channel in the internal part of the angular valve will also continuously displace and compress to produce wear. Therefore, the air tightness of the pipeline channel needs to be monitored. The specific implementation is that, during the experiment, the negative pressure generating module 130 extracts the air at the pipeline outlet of the to-be-tested angular valve 200, and the negative pressure sensing module 127 detects the vacuum degree in the pipeline channel in real time. When it is detected that the vacuum degree is greater than a preset vacuum degree, it is determined that the vacuum degree is abnormal, that is, the wear of the sealing devices related to the internal pipeline channel of the angular valve affects the vacuum degree of the system. The platform stops the fatigue test, and the current recorded fatigue number is the fatigue life of the to-be-tested angular valve.

[0179] In summary, although the angle valve 200 under test can still be opened and closed during testing, it may already be damaged. Waiting until the valve 200 has completed the first preset number of opening and closing cycles before performance testing would waste testing resources. Therefore, performance testing can be performed on the angle valve 200 after the second preset number of cycles, thereby identifying problems early and improving testing efficiency.

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

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

[0182] Step S701: The gas supply is switched from the control end of the angle valve 200 under test to the pipeline inlet of the angle valve 200 under test.

[0183] For example, the first solenoid valve 121 can be closed and the third solenoid valve 125 can be opened, so that there is no air pressure at the control end of the angle valve 200 under test, and there is air pressure at the pipeline inlet of the angle valve 200 under test.

[0184] In step S702, the negative pressure generating module 130 evacuates the pipe outlet of the angle valve 200 under test.

[0185] For example, the fourth electrically controlled valve 126 and the negative pressure generating module 130 can be opened.

[0186] In step S703, the pressure regulating module 110 is controlled by the control module 140 to gradually increase the air pressure value at the pipeline inlet of the angle valve 200 under test.

[0187] For example, by increasing the opening of the pressure regulating module 110, the inlet air pressure of the pipe of the angle valve 200 under test can be increased.

[0188] In step S704, when the position sensing module 124 detects that the actuator of the angle valve 200 under test is in the start position, the control module 140 records the air pressure value measured by the pressure sensing module 123 at this time as the pressure resistance value of the angle valve 200 under test.

[0189] When the execution assembly of the to-be-tested angular valve 200 is located at the starting position, it indicates that the to-be-tested angular valve 200 is opened by the gas at the pipeline inlet, and at this time, the gas pressure value at the pipeline inlet of the to-be-tested angular valve 200 is the pressure resistance value of the to-be-tested angular valve 200. The pressure resistance value can be obtained through the target pressure signal of the control module 140 or the feedback value of the pressure adjusting module 110.

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

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

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

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

[0194] In some scenarios, the to-be-tested angular valve 200 is in an environment with normal pressure or very low vacuum, at which time the negative pressure generation module 130 can be turned off to make the pipeline outlet of the to-be-tested angular valve 200 in a normal pressure state, thereby simulating a normal pressure environment to measure the performance of the to-be-tested angular valve 200 in a normal pressure environment.

[0195] The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0196] The above descriptions are only the preferred embodiment of the present application, not intended to limit the present application. Any modification, equivalent replacement and improvement made within the principle and technical scope of the present application should be included in the protection scope of the present application.

Claims

1. A method of operating a multi-functional test system for a vacuum angle valve, characterized by, The multifunctional test system of the vacuum angle valve comprises a control module, a position sensing module, a pressure regulating module, a pressure sensing module, a first electric control valve, a second electric control valve, a third electric control valve, a fourth electric control valve, a negative pressure sensing module and a negative pressure generating module, and the control module is electrically connected with the position sensing module, the pressure regulating module, the pressure sensing module, the first electric control valve, the second electric control valve, the third electric control valve, the fourth electric control valve, the negative pressure sensing module and the negative pressure generating module. The position sensing module is arranged corresponding to the angle valve to be tested and is used for sensing the position of the execution assembly of the angle valve to be tested. The position sensing module comprises a laser sensor and a Hall sensor. The laser sensor is arranged opposite to the execution assembly of the angle valve to be tested.

2. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, The Hall sensor is arranged on the angle valve to be tested. The multifunctional test system of the vacuum angle valve further comprises a machine table and a sliding module arranged on the machine table. The laser sensor is arranged on the sliding module and above the angle valve to be tested. The sliding module is used for adjusting the position of the laser sensor relative to the angle valve to be tested.

3. The method of operating a multi-functional test system for vacuum angle valves according to claim 2, characterized in that, The pressure regulating module is communicated with the gas control end and the pipeline inlet of the angle valve to be tested. The inlet of the first electric control valve and the inlet of the third electric control valve are communicated with the outlet of the pressure regulating module. The inlet of the second electric control valve is communicated with the outlet of the first electric control valve.

4. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, The outlet of the second electric control valve is used for being communicated with the gas control end of the angle valve to be tested. The pressure sensing module is communicated between the first electric control valve and the second electric control valve. The outlet of the third electric control valve is used for being communicated with the pipeline inlet of the angle valve to be tested. The inlet of the fourth electric control valve is used for being communicated with the pipeline outlet of the angle valve to be tested and the negative pressure sensing module. The outlet of the fourth electric control valve is communicated with the negative pressure generating module. The operation method comprises the following steps: The position information of the position sensing module is acquired by the control module. The pressure of the gas control end or the pipeline inlet of the angle valve to be tested is regulated by the pressure regulating module. The negative pressure of the pipeline outlet of the angle valve to be tested is regulated by the negative pressure generating module. At least two of the stroke test, the response time test, the control pressure test, the fatigue test and the resistance pressure test of the angle valve to be tested are realized. If the stroke test of the angle valve to be tested is performed, the specific operation steps comprise the following steps: The gas in the gas control end of the angle valve to be tested is discharged to make the angle valve to be tested closed. The closing position of the execution assembly of the angle valve to be tested is recorded by the position sensing module. The gas in the gas control end of the angle valve to be tested is supplied to make the angle valve to be tested opened. The opening position of the execution assembly of the angle valve to be tested is recorded by the position sensing module. The stroke of the angle valve to be tested is calculated by the control module according to the closing position and the opening position. If the stroke test of the angle valve to be tested is performed, the specific operation steps further comprise the following steps: The closing position of the execution assembly of the angle valve to be tested is recorded by the position sensing module after the angle valve to be tested is closed for a first preset time. The opening position of the execution assembly of the angle valve to be tested is recorded by the position sensing module after the angle valve to be tested is opened for a second preset time. If the response time test of the angle valve to be tested is performed, the specific operation steps comprise the following steps: The opening signal of the angle valve to be tested is sent by the control module, and the control module starts timing. The opening position signal of the angle valve to be tested is sent by the position sensing module after the angle valve to be tested is opened to the position. 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-to-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 closed to position, the position sensing module sends a closing-to-position 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-to-position signal.

5. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, The operation method further comprises: selecting one of the stroke test, the response time, the control pressure, the fatigue test and the pressure resistance test; After setting the corresponding parameters of the selected test item, starting the automatic test.

6. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, If the control pressure test is performed on the angle valve to be tested, the specific operation steps comprise: The control module controls the pressure adjusting module to act to gradually increase the gas pressure value of the gas control end of the angle valve to be tested; If the position sensing module detects that the execution assembly of the angle valve to be tested is located at the starting position, the control module records the gas pressure value measured by the pressure sensing module at this time as the starting control pressure value; The control module compares the starting control pressure value with the preset first pressure value to determine whether the starting control pressure value is normal; If the position sensing module detects that the execution assembly of the angle valve to be tested is located at the opening-to-position position, the control module records the gas pressure value measured by the pressure sensing module at this time as the opening-to-position control pressure value; The control module compares the opening-to-position control pressure value with the preset second pressure value to determine whether the opening-to-position control pressure value is normal.

7. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, If the fatigue test is performed on the angle valve to be tested, the specific operation steps comprise: The opening and closing times of the angle valve to be tested are recorded by the control module; If the opening or closing times of the angle valve to be tested do not reach the first preset number of times, and the angle valve to be tested is damaged, the test is stopped, and it is determined that the angle valve to be tested fails the fatigue test; If the opening and closing times of the angle valve to be tested both reach the first preset number of times, the test is stopped, the performance of the angle valve to be tested is detected, and if the detection is qualified, it is determined that the angle valve to be tested passes the fatigue test, and if the detection is unqualified, it is determined that the angle valve to be tested fails the fatigue test.

8. The method of operating a multi-functional test system for vacuum angle valves according to claim 7, characterized in that, If the opening and closing times of the angle valve to be tested both reach the second preset number of times, the test is paused, the performance of the angle valve to be tested is detected, and if the detection is qualified, the test is continued, if the detection is unqualified, the test is stopped, and it is determined that the angle valve to be tested fails the fatigue test, the second preset number of times being less than the first preset number of times.

9. The method of operating a multi-functional test system for vacuum angle valves according to claim 1, characterized in that, If the pressure resistance test is performed on the angle valve to be tested, the specific operation steps comprise: Switching the gas supply to the gas control end of the angle valve to be tested to the gas supply to the pipeline inlet of the angle valve to be tested; The pipeline outlet of the angle valve to be tested is vacuumized by the negative pressure generating module; The control module controls the pressure adjusting module to act to gradually increase the gas pressure value of the pipeline inlet of the angle valve to be tested; When the position sensing module detects that the execution assembly of the angle valve to be tested is located at the starting position, the control module records the gas pressure value measured by the pressure sensing module at this time as the pressure resistance pressure value of the angle valve to be tested; The control module compares the pressure resistance pressure value with a preset third pressure value to determine whether the pressure resistance pressure value is normal.

10. The method of operating a multi-functional test system for vacuum angle valves according to any one of claims 1-8, characterized in that, If 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 vacuumize the pipeline outlet of the angle valve to be tested, so that the pipeline outlet of the angle valve to be tested is in a negative pressure state. Alternatively, the negative pressure generating module is closed to make the pipeline outlet of the angle valve to be tested in a normal pressure state.

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