Endurance testing device of electromagnetic valve and operation method of durability testing device

Abstract

The invention discloses a durability testing device of an electromagnetic valve and an operation method of the durability testing device, and relates to the technical field of electromagnetic valve testing. A clamping assembly is fixedly installed at the bottom of a side top plate in the device cabinet body through bolts. An electromagnetic valve body is fixedly installed on the inner side of the clamping assembly in a clamping mode, accurate displacement control over the right-angle frame-latch mechanism is achieved by arranging the clamping assembly, and the variable-caliber sleeve has the dynamic deformation capacity by combining the dual functions of an elastic element and a memory metal wire of the side connection pipeline piece. Electromagnetic valve bodies and pipeline connectors of different specifications can be self-adapted; an integrated Hall sensor array and a thermal imaging system of a monitoring assembly are arranged, a three-dimensional magnetic field distribution model of an electromagnetic valve and a thermodynamic characteristic spectrum are combined, and a multi-mode online detection system is achieved through a machine learning algorithm.

Description

Technical Field

[0001] The present invention relates to the technical field of solenoid valve testing, and specifically to a durability testing device for a solenoid valve and its operation method. Background Art

[0002] Before a solenoid valve is used in industrial production or put on the market, it needs to be subjected to a life quality test of the solenoid valve. By frequently energizing the solenoid valve to make the solenoid valve open and close multiple times, the number of opening and closing times of the solenoid valve before a failure occurs is recorded, so as to obtain the quality information of the solenoid valve; the solenoid valves have various specifications (large differences in caliber / shape), and traditional jigs need to frequently replace tooling, and the manual adjustment efficiency is low, and it is easy to cause equipment damage due to uneven clamping force; internal failures such as valve stem wear and armature offset rely on manual disassembly and inspection and cannot be monitored in real time; a single sensor (such as vibration or current) is easily interfered with and has a high misjudgment rate. Summary of the Invention

[0003] Therefore, in order to solve the above deficiencies, the present invention provides a durability testing device for a solenoid valve and its operation method herein.

[0004] The present invention is implemented as follows. A durability testing device for a solenoid valve and its operation method are constructed. The device includes a device cabinet; a clamping assembly is fixedly installed at the bottom of the middle side top plate of the device cabinet by bolts; a solenoid valve body is fixedly installed inside the clamping assembly by clamping; a monitoring assembly is fixedly installed at the top of the device cabinet by bolts; side connection pipe fittings for guiding are fixedly installed on both the left and right sides of the top of the device cabinet; a quick connection assembly is fixedly installed on the side of the pipe of the side connection pipe fitting; a control cabinet is fixedly installed on the left side of the device cabinet by bolts.

[0005] Preferably, the quick connection assembly includes a fixing ring fixedly installed on the side of the pipe of the side connection pipe fitting by bolts; an extrusion ring is clamped and fixed at the connection between the side of the fixing ring and the side end face of the side connection pipe fitting; a clamping cylinder with an adjusting function is fixedly installed inside the fixing ring frame by bolts; a fixing block with a limiting function is rotatably fixed at the end of the piston rod on the side of the clamping cylinder; a clamping block for limiting is inserted and fixed on the side of the fixing block, and the fixing block is fixedly installed at the connection of three springs of an elastic member; a variable caliber sleeve is clamped and fixed inside the extrusion ring and the clamping block; the variable caliber sleeve is adhesively fixed on the side of an equal caliber sleeve, and the equal caliber sleeve is adhesively fixed inside the elastic member; memory metal wires are arranged in an equal ring on the outside of the equal caliber sleeve, and the memory metal wires are fixedly installed on the side of the fixing block.

[0006] Preferably, the clamping assembly includes a pressure cylinder fixedly installed at the bottom of the top plate of the device cabinet body through a bracket, and a sensor for pressure detection is arranged on the side of the pressure cylinder; right-angle frames are fixedly inserted and installed at the ends of the piston rods on both the front and rear sides of the pressure cylinder; a toothed gear with a clamping function is rotatably installed at the top of the right-angle frame.

[0007] Preferably, the toothed gear is meshed with the bottom of the rack, and a sensor with a data acquisition function is fixedly installed on the side of the rotating shaft at the bottom of the toothed gear; a clamping block is welded and fixed at the top of the rack, and the clamping block is in contact with the surface of the solenoid valve body shell.

[0008] Preferably, the monitoring assembly includes a multi-axis robotic arm fixedly installed on the top of the device cabinet body through bolts for adjustment; a fixed shell is fixedly installed at the end of the multi-axis robotic arm through bolts; a semi-circular groove is arranged inside the fixed shell, and Hall sensors are arranged in an array inside the groove; the side of the fixed shell is in contact with the side of the displacement shell; a limiting rod is slidably arranged inside the ear plates below the sides of the fixed shell and the displacement shell.

[0009] Preferably, an electromagnetic sleeve is rotatably arranged inside the ear plates above the sides of the fixed shell and the displacement shell; a lead screw is threadedly driven inside the electromagnetic sleeve.

[0010] Preferably, the lead screw is fixedly inserted and installed at the end of the transmission shaft of the servo motor, and the servo motor is fixedly installed on the side of the fixed shell through bolts; a thermal imaging sensor with a data acquisition function is fixedly installed on the side of the displacement shell through bolts.

[0011] Preferably, the side connection pipe fitting is specifically composed of a filter box, a water pump, and related pressure valves, and an overflow valve is arranged on the side of the side connection pipe fitting.

[0012] Preferably, a camera assembly for data acquisition is fixedly arranged on the side of the top of the device cabinet body, and the camera assembly is specifically composed of a camera and a robotic arm.

[0013] Preferably, variable-diameter sleeves, extrusion rings, and clamping blocks are arranged on both the left and right sides of the equal-diameter sleeve, and multiple shape memory alloy wires outside the equal-diameter sleeve are connected by elastic ropes.

[0014] An operation method for a durability test device of a solenoid valve includes the following steps:

[0015] Step 1. Fixing the valve body; fixing the solenoid valve body through the clamping assembly, and then connecting and fixing the side connection pipe fitting and the pipe bodies on both sides of the solenoid valve body through the quick-connection assembly;

[0016] Step 2. Positioning of the detection component; the control cabinet is used to control the monitoring component to gradually approach the solenoid valve body in cooperation with the camera component on the top of the device cabinet, and the monitoring component is installed outside the valve stem of the solenoid valve body;

[0017] Step 3. Multi-technology detection; the monitoring component is used to monitor the relative position of the armature of the solenoid valve body and the magnetic field center, and with the assistance of the infrared thermal imaging of the thermal imaging sensor, the symmetry of the temperature field is analyzed. If there are local hot spots, it may indicate central deviation;

[0018] Step 4. Fluid parameter detection; the side connection pipe component and the quick connection component are used to provide factors such as pressure and temperature for the two side ports of the solenoid valve body, and multiple opening and closing tests are carried out at different pressures and temperatures;

[0019] Step 5. Counting control; after a working problem occurs in the solenoid valve body, the control cabinet stops intermittently supplying power to the solenoid valve body, the counter stops measuring data, and the information displayed on the counter is the number of working times of the solenoid valve body, and the tester records the number information.

[0020] The present invention has the following advantages: The present invention provides a durability test device for a solenoid valve and its operation method by making improvements here. Compared with the same type of equipment, the following improvements are made:

[0021] For the durability test device for a solenoid valve and its operation method of the present invention, through the setting of the clamping component, precise displacement control of the right-angle frame - gear mechanism is realized, and combined with the dual functions of the elastic element and the shape memory wire of the side connection pipe component, the variable-diameter sleeve has the ability of dynamic deformation and can adapt to solenoid valve bodies and pipe interfaces of different specifications; through the setting of the integrated Hall sensor array and the thermal imaging system of the monitoring component, combined with the three-dimensional magnetic field distribution model and the thermodynamic characteristic spectrum of the solenoid valve, a multi-modal online detection system is realized through machine learning algorithms. Brief Description of the Drawings

[0022] Figure 1 is the structural schematic diagram of the present invention;

[0023] Figure 2 is the sectional structural schematic diagram of the clamping component of the present invention;

[0024] Figure 3 is the axonometric structural schematic diagram of the monitoring component of the present invention;

[0025] Figure 4 is the exploded structural schematic diagram of the monitoring component of the present invention;

[0026] Figure 5 is the structural schematic diagram of the quick connection component and the side connection pipe component of the present invention;

[0027] Figure 6 is the axonometric structural schematic diagram of the quick connection component of the present invention.

[0028] Wherein: device cabinet body - 1, clamping assembly - 2, solenoid valve body - 3, monitoring assembly - 4, quick - connection assembly - 5, side - connection pipeline component - 6, control cabinet - 7, pressure cylinder - 21, right - angle frame - 22, cogs - 23, rack - 24, clamping block - 25, multi - axis robotic arm - 41, fixed shell - 42, Hall sensor - 43, displacement shell - 44, limiting rod - 45, electromagnetic sleeve - 46, lead screw - 47, servo motor - 48, thermal imaging sensor - 49, extrusion ring - 51, fixed ring - 52, clamping cylinder - 53, engaging block - 54, variable - aperture sleeve - 55, fixed block - 56, elastic member - 57, equal - aperture sleeve - 58, shape - memory wire - 59. Detailed implementation mode

[0029] The following combines the attached Figures 1 to 6 The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non - precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The embodiments of the present invention are described below according to its overall structure.

[0032] Embodiment 1:

[0033] Please refer to Figures 1 to 6, A durability test device and its operation method for a solenoid valve of the present invention, including a device cabinet 1; a clamping assembly 2 is fixedly installed at the bottom of the middle side top plate of the device cabinet 1 by bolts; a solenoid valve body 3 is clamped and fixedly installed inside the clamping assembly 2; a monitoring assembly 4 is fixedly installed at the top of the device cabinet 1 by bolts; side connection pipe fittings 6 for guiding are fixedly installed on both the left and right sides at the top of the device cabinet 1; a quick connection assembly 5 is fixedly installed on the side of the pipe of the side connection pipe fitting 6; a control cabinet 7 is fixedly installed on the left side of the cabinet body of the device cabinet 1 by bolts.

[0034] The quick connection assembly 5 includes a fixing ring 52 fixedly installed on the side of the pipe of the side connection pipe fitting 6 by bolts; an extrusion ring 51 is clamped and fixed at the joint of the side surface of the fixing ring 52 and the side end surface of the side connection pipe fitting 6; a clamping cylinder 53 with an adjusting function is fixedly installed inside the frame of the fixing ring 52 by bolts; a fixing block 56 with a limiting function is rotatably fixed at the end of the piston rod on the side of the clamping cylinder 53; a clamping block 54 for limiting is inserted and fixed on the side of the fixing block 56, and the fixing block 56 is fixedly installed at the joint of the three groups of springs of the elastic member 57; a variable diameter sleeve 55 is fixedly installed by extrusion inside the extrusion ring 51 and the clamping block 54; the variable diameter sleeve 55 is adhesively fixed on the side of the equal diameter sleeve 58, and the equal diameter sleeve 58 is adhesively fixed inside the elastic member 57; memory metal wires 59 are arranged in an equal ring on the outside of the equal diameter sleeve 58, and the memory metal wires 59 are fixedly installed on the side of the fixing block 56.

[0035] The clamping assembly 2 includes a pressure cylinder 21 fixedly installed at the bottom of the top plate of the device cabinet 1 through a bracket, and a sensor for pressure detection is arranged on the side of the pressure cylinder 21. The sensor specifically consists of a coil and a rotor rod; right-angle brackets 22 are inserted and fixedly installed at the ends of the piston rods on the front and rear sides of the pressure cylinder 21; a toothed gear 23 with a positioning function is rotatably installed at the top of the right-angle bracket 22; the toothed gear 23 is meshed with the bottom of the rack 24, and a sensor with a data acquisition function is fixedly installed on the side of the rotating shaft at the bottom of the toothed gear 23; a clamping block 25 is welded and fixed at the top of the rack 24, and the clamping block 25 is in contact with the surface of the shell of the solenoid valve body 3.

[0036] The side connection pipe fitting 6 is specifically composed of a filter box, a water pump, and related pressure valves, and an overflow valve is arranged on the side of the side connection pipe fitting 6; a camera assembly for data acquisition is fixedly arranged on the side of the top of the device cabinet 1, and the camera assembly specifically consists of a camera and a robotic arm.

[0037] Variable diameter sleeves 55, extrusion rings 51, and clamping blocks 54 are arranged on both the left and right sides of the equal diameter sleeve 58, and multiple groups of memory metal wires 59 on the outside of the equal diameter sleeve 58 are connected by elastic ropes.

[0038] Example two:

[0039] Please refer toFigures 1 to 6 , a durability test device and an operation method of a solenoid valve according to the present invention. Compared with the first embodiment, this embodiment further includes: The monitoring component 4 includes a multi-axis robotic arm 41 that is fixedly installed on the top of the device cabinet 1 through bolts for adjustment; A fixed shell 42 is fixedly installed at the end of the multi-axis robotic arm 41 through bolts; A semi-circular groove is provided inside the fixed shell 42, and Hall sensors 43 are arranged in the groove; The side of the fixed shell 42 is in contact with the side of the displacement shell 44; A limiting rod 45 is slidably arranged in the lower ear plates on the sides of the fixed shell 42 and the displacement shell 44; An electromagnetic sleeve 46 is rotatably arranged in the upper ear plates on the sides of the fixed shell 42 and the displacement shell 44; A lead screw 47 is threadedly driven inside the electromagnetic sleeve 46; The lead screw 47 is inserted and fixedly installed at the end of the transmission shaft of the servo motor 48, and the servo motor 48 is fixedly installed on the side of the fixed shell 42 through bolts; A thermal imaging sensor 49 with a data acquisition function is fixedly installed on the side of the displacement shell 44 through bolts.

[0040] Based on the above, the working principle of a durability test device and an operation method of a solenoid valve is as follows:

[0041] First, when using this device, first place this device in the working area, and then connect the device to an external power source to provide the power required for the operation of this device.

[0042] Second, after the staff places the solenoid valve body 3 on the top of the device cabinet 1, then adjust the air source for the pressure cylinder 21 through the control cabinet 7 and an external air source, so that the pressure cylinder 21 pushes or pulls the right-angle frames 22 and the cogs 23 on both sides thereof to displace, and through the sensor arranged on the side of the cog 23, when the coil in the sensor is energized, the rotor rod is limited, and the cog 23 drives the rack 24 and the clamping block 25 to perform a clamping action on the solenoid valve body 3.

[0043] Third, then the staff fixes the extrusion ring 51 and the variable-diameter sleeve 55 on the side connection pipe fitting 6 or the pipe orifice of the solenoid valve body 3 by means of the fixing ring 52. Here, the fixing ring 52 can provide a limiting effect for the variable-diameter sleeve 55 by the extrusion ring 51. At the same time, the control clamping cylinder 53 drives the fixed block 56 to displace. Here, the elastic member 57 on the side of the fixed block 56 drives the variable-diameter sleeve 55 to expand the diameter to be suitable for solenoid valves of different diameters. At the same time, the memory metal wire 59 can limit the diameter of the equal-diameter sleeve 58 under high-pressure conditions, that is, the installation of the solenoid valve body 3 is completed.

[0044] Fourthly, with the cooperation of the camera assembly on the top of the device cabinet 1, the multi-axis robotic arm 41 drives the fixed shell 42 to approach the valve stem position of the solenoid valve body 3. Subsequently, the servo motor 48 drives the screw rod 47 to rotate and engage in a threaded drive with the electromagnetic sleeve 46 on the side of the displacement shell 44, thereby adjusting the distance between the fixed shell 42 and the displacement shell 44 to enclose the valve stem position of the solenoid valve body 3. By arranging a plurality of Hall sensors 43 around the outer shell of the solenoid valve body 3 to measure the external magnetic field distribution, when the armature of the solenoid valve body 3 is aligned with the magnetic field center, the magnetic field symmetry is the highest, and components such as the valve stem in the solenoid valve body 3 remain in an unworn state;

[0045] Fifthly, when the armature of the solenoid valve body 3 deviates from the center, the unbalanced electromagnetic force will cause the vibration to intensify, and the harmonic energy of a specific frequency will increase significantly. At this time, components such as the valve stem in the solenoid valve body 3 show wear phenomena. The deviation of the armature in the solenoid valve body 3 causes uneven local magnetic fields. The thermal imaging sensor 49 is used to detect abnormal heating of the coil or armature. By integrating multi-dimensional data such as magnetic fields, vibrations, and currents, the detection reliability is improved through a machine learning model; Then, the fluid is introduced through the side connection pipe fitting 6 to flow inside the valve body of the solenoid valve body 3, and by changing the pressure and temperature of the introduced fluid, it is convenient to simulate the durability test of the solenoid valve body 3 under different conditions.

[0046] The present invention provides a durability test device for a solenoid valve and its operation method through improvement. By setting the clamping assembly 2, precise displacement control of the right-angle bracket - gear mechanism is achieved, and combined with the dual effects of the elastic element and the shape memory wire of the side connection pipe fitting 6, the variable-diameter sleeve has the ability of dynamic deformation and can adapt to solenoid valve bodies and pipe interfaces of different specifications; By setting the integrated Hall sensor array and the thermal imaging system of the monitoring assembly 4, combined with the three-dimensional magnetic field distribution model and the thermodynamic characteristic spectrum of the solenoid valve, a multi-modal online detection system is realized through machine learning algorithms.

[0047] The above shows and describes the basic principles, main features, and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein again.

[0048] The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A durability test device for a solenoid valve, comprising a device cabinet (1); a clamping assembly (2) is fixedly installed at the bottom of the middle side top plate of the device cabinet (1) by bolts; a solenoid valve body (3) is fixedly installed inside the clamping assembly (2) by clamping; a monitoring assembly (4) is fixedly installed at the top of the device cabinet (1) by bolts; side connection pipe fittings (6) for guiding are fixedly installed on both the left and right sides at the top of the device cabinet (1); a quick connection assembly (5) is fixedly installed on the side of the pipe of the side connection pipe fitting (6); a control cabinet (7) is fixedly installed on the left side of the cabinet body of the device cabinet (1). It is characterized in that: The quick connection assembly (5) includes a fixing ring (52) fixedly installed on the side of the pipe of the side connection pipe fitting (6) by bolts; an extrusion ring (51) is fixedly installed by clamping at the connection of the side surface of the fixing ring (52) and the side end surface of the side connection pipe fitting (6); a clamping cylinder (53) with an adjusting function is fixedly installed inside the frame of the fixing ring (52) by bolts; a fixing block (56) with a limiting function is fixedly installed by rotation at the end of the piston rod on the side of the clamping cylinder (53); a clamping block (54) for limiting is inserted and fixedly installed on the side of the fixing block (56), and the fixing block (56) is fixedly installed at the connection of the three groups of springs of the elastic member (57); a variable diameter sleeve (55) is fixedly installed by extrusion inside the extrusion ring (51) and the clamping block (54); the variable diameter sleeve (55) is adhesively fixedly installed on the side of an equal diameter sleeve (58), and the equal diameter sleeve (58) is adhesively fixedly installed inside the elastic member (57); memory metal wires (59) are arranged in an equal ring on the outside of the equal diameter sleeve (58), and the memory metal wires (59) are fixedly installed on the side of the fixing block (56).

2. The durability test device for a solenoid valve according to claim 1, wherein: The clamping assembly (2) includes a pressure cylinder (21) fixedly installed at the bottom of the top plate of the device cabinet (1) through a bracket, and a sensor for pressure detection is arranged on the side of the pressure cylinder (21); right-angle brackets (22) are inserted and fixedly installed at the ends of the piston rods on the front and rear sides of the pressure cylinder (21); a clamping tooth (23) with a positioning function is rotatably installed at the top of the right-angle bracket (22).

3. The durability test device for a solenoid valve according to claim 2, characterized in that: The clamping tooth (23) is meshed with the bottom of a rack (24), and a sensor with a data acquisition function is fixedly installed on the side of the rotating shaft at the bottom of the clamping tooth (23); a clamping block (25) is welded and fixed at the top of the rack (24), and the clamping block (25) is in contact with the surface of the shell of the solenoid valve body (3).

4. The durability test device for a solenoid valve according to claim 3, characterized in that: The monitoring assembly (4) includes a multi-axis robotic arm (41) for adjustment fixedly installed at the top of the device cabinet (1) by bolts; a fixed shell (42) is fixedly installed at the end of the multi-axis robotic arm (41) by bolts; a semi-circular groove is arranged inside the fixed shell (42), and Hall sensors (43) are arranged inside the groove; the side surface of the fixed shell (42) is in contact with the side surface of a displacement shell (44); a limiting rod (45) is slidably arranged inside the ear plates below the side surfaces of the fixed shell (42) and the displacement shell (44).

5. The durability test device for a solenoid valve according to claim 4, characterized in that: An electromagnetic sleeve (46) is rotatably arranged inside the ear plates above the sides of the fixed housing (42) and the displacement housing (44); a lead screw (47) is arranged inside the electromagnetic sleeve (46) through threaded transmission.

6. The durability test device for a solenoid valve according to claim 5, characterized in that: The lead screw (47) is inserted and fixedly installed at the end of the transmission shaft of the servo motor (48), and the servo motor (48) is fixedly installed on the side of the fixed housing (42) through bolts; a thermal imaging sensor (49) with a data acquisition function is fixedly installed on the side of the displacement housing (44) through bolts.

7. The durability test device for a solenoid valve according to claim 6, characterized in that: The side connection pipe fitting (6) is specifically composed of a filter box, a water pump and related pressure valves, and an overflow valve is arranged on the side of the side connection pipe fitting (6).

8. The durability test device for a solenoid valve according to claim 7, wherein: A camera assembly for data acquisition is fixedly arranged on the top side of the device cabinet (1), and the camera assembly is specifically composed of a camera and a robotic arm.

9. The durability test device for a solenoid valve according to claim 8, wherein: Variable diameter sleeves (55), extrusion rings (51) and engaging blocks (54) are arranged on both the left and right sides of the equal diameter sleeve (58), and a plurality of shape memory alloy wires (59) outside the equal diameter sleeve (58) are connected by elastic ropes.

10. A method for operating a durability test device of a solenoid valve, which is used to implement the durability test device of a solenoid valve as described in claim 9, characterized in that: Including the following steps: Step 1, valve body fixation; the electromagnetic valve body (3) is fixed by the clamping assembly (2), and then the side connection pipe fitting (6) and the pipe bodies on both sides of the electromagnetic valve body (3) are connected and fixed through the quick connection assembly (5). Step 2, detector positioning; the control cabinet (7) controls the monitoring assembly (4) to gradually approach the electromagnetic valve body (3) under the cooperation of the camera assembly on the top of the device cabinet (1), and the monitoring assembly (4) is installed outside the valve stem of the electromagnetic valve body (3). Step 3, multi-technology detection; the monitoring assembly (4) monitors the relative position of the armature of the electromagnetic valve body (3) and the magnetic field center, and with the infrared thermal imaging assistance of the thermal imaging sensor (49), analyzes the symmetry of the temperature field. If there are local hot spots, it may indicate a center offset. Step 4, fluid parameter detection; the side connection pipe fitting (6) and the quick connection assembly (5) provide factors such as pressure and temperature for the fluid ports on both sides of the electromagnetic valve body (3), and multiple opening and closing tests are carried out at different pressures and temperatures. Step 5, counting control; after a working problem occurs in the electromagnetic valve body (3), the control cabinet (7) stops intermittently supplying power to the electromagnetic valve body (3), the counter stops measuring data, and the information displayed on the counter is the number of working times of the electromagnetic valve body (3), and the tester records the number information.

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