Electromagnet performance detection device and use method

Abstract

The invention discloses an electromagnet performance detection device which comprises a distance measuring assembly used for measuring the distance between an electromagnet and a force sensor and a force measuring assembly used for measuring the impact force of the electromagnet on the force sensor. The device is simple and convenient in structure, easy to operate and high in automation degree, and can quickly and accurately position fault points and complete comprehensive detection of the performance of the electromagnet by measuring dynamic action data of the electromagnet, generating a detailed characteristic curve and comparing the characteristic curve with a standard curve in a short time. In particular, hidden dangers such as mechanical jamming and iron core magnetization can be effectively detected, the overhaul and maintenance efficiency is greatly improved, and the manpower and time cost is saved; meanwhile, due to the portable and intelligent design, detection and maintenance of the equipment are more convenient, and risks caused by the performance problem of the equipment in the maintenance process are effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electrical testing, and in particular to an electromagnet performance detection device and a use method thereof. Background Art

[0002] Electromagnets are an important part of the circuit breaker's opening and closing operating mechanism, and their performance directly affects the reliability of the circuit breaker's opening and closing. If the electromagnet's performance is poor, it may cause the circuit breaker to refuse to operate, causing equipment failure and even large-scale power outages. In order to ensure the normal operation of the circuit breaker, the staff needs to conduct a comprehensive and accurate test of the electromagnet's performance.

[0003] The current testing methods for electromagnet performance do not provide obvious feedback on mechanical hazards such as mechanical jamming and reduced electromagnetic force due to core magnetization. They cannot quickly and accurately locate the fault point, affecting maintenance efficiency.

[0004] Therefore, a simple-to-operate and highly efficient electromagnet performance detection device is needed, which can use the input and output of pulse voltage to detect the inter-turn insulation condition of the coil after the current passes through it, so as to prevent unqualified coils from flowing into spare parts or being installed on equipment, and eliminate the occurrence of large-scale power outages caused by circuit breaker refusal to operate due to coil damage from the source, facilitate operation and maintenance work, save time and effort, and improve the work efficiency of staff. Summary of the invention

[0005] In view of the above problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is to provide obvious feedback on the hidden dangers of the electromagnet mechanics, it is difficult to locate the fault point, and the maintenance efficiency is low.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an electromagnet performance detection device, comprising a distance measuring component, including a distance sensor and a follower rod, wherein the distance sensor is fixed to one side of the distance adjusting component; the follower rod is arranged at one end of the distance sensor, and is used to measure the distance from the electromagnet to the force sensor;

[0008] The force measuring assembly is arranged on one side of the electromagnet, and comprises a mounting plate and a force sensor; the mounting plate is arranged on one side of the bottom of the electromagnet; the force sensor is arranged on the top of the mounting plate and directly facing the electromagnet, and is used to measure the impact force of the electromagnet on the force sensor;

[0009] The voltage regulating component is connected to the electromagnet and is used to change the voltage supplied to the electromagnet.

[0010] As a preferred solution of the electromagnet performance detection device of the present invention, it also includes a distance adjustment component, which is arranged on one side of the distance measuring component and is used to adjust the distance from the electromagnet to the force sensor.

[0011] As a preferred solution of the electromagnet performance detection device of the present invention, it further comprises a clamping assembly, which is arranged on the top of the distance adjustment assembly and is used to fix the electromagnet at the top position.

[0012] As a preferred solution of the electromagnet performance detection device of the present invention, it also includes a shell component for fixing and protecting the components inside the device.

[0013] As a preferred solution of the electromagnet performance detection device described in the present invention, wherein: the distance adjustment component is fixed inside the shell component; the distance measuring component is arranged on one side of the distance adjustment component; the force measuring component is arranged on the other side of the distance adjustment component; the bottom of the clamping component and the top of the distance adjustment component are slidably matched.

[0014] As a preferred solution of the electromagnet performance detection device of the present invention, the housing assembly comprises a box cover and a box body, and one side of the box cover is rotatably connected to one side of the top of the box body.

[0015] As a preferred solution of the electromagnet performance detection device of the present invention, wherein: the pitch adjustment assembly includes a lower motor, a lower fixing plate, a lower screw rod and a lower screw rod slider; the lower motor is arranged on one side of the bottom surface of the box body; the lower fixing plate is arranged on one side of the lower motor; the lower screw rod slider and the lower fixing plate are slidably connected; the lower screw rod penetrates and cooperates with the lower screw rod slider, and one end of the lower screw rod cooperates with the lower motor;

[0016] The distance measuring component also includes a sensor traction plate, and the sensor traction plate is fixed to one side of the lower screw slider.

[0017] As a preferred solution of the electromagnet performance detection device of the present invention, wherein: the clamping assembly includes an upper motor, an upper fixing plate, an upper screw and an upper screw slider; the upper fixing plate is fixed to the top of the lower screw slider; the upper motor is arranged at one end of the upper fixing plate; the upper screw slider and the upper fixing plate are slidably connected; the upper screw passes through and cooperates with the upper screw slider, and one end of the upper screw cooperates with the upper motor;

[0018] The clamping assembly also includes a positioning plate, and the positioning plate and the upper screw slider are slidably matched to ensure that the installation position of the electromagnet on the clamping assembly is not offset.

[0019] As a preferred solution of the electromagnet performance detection device of the present invention, wherein: the mounting plate is arranged on one side of the bottom of the box body; the force sensor is arranged on the top of the mounting plate and directly facing the top of one side of the upper fixing plate.

[0020] In order to solve the above technical problems, the present invention also provides the following technical solutions: a method for using an electromagnet performance detection device, comprising: using a clamping assembly to fix the electromagnet so that the electromagnet faces the force sensor;

[0021] Use the distance measuring component to measure the precise value of the distance between the electromagnet and the force sensor;

[0022] Use the control module to change the energized extension distance and energized voltage of the electromagnet to measure the electromagnet characteristic curve, and compare it with the intact electromagnet characteristic curve to obtain the monitoring result.

[0023] The beneficial effects of the present invention are as follows: the device has a simple structure, simple operation, and a high degree of automation. It can generate a detailed characteristic curve by measuring the dynamic action data of the electromagnet in a short time, and compare it with the standard curve, so as to quickly and accurately locate the fault point and complete a comprehensive test of the electromagnet performance. In particular, it can effectively detect hidden dangers such as mechanical jamming and iron core magnetization, greatly improve the efficiency of inspection and maintenance, and save manpower and time costs; at the same time, the portability and intelligent design make the inspection and maintenance of the equipment more convenient, and effectively reduce the risks caused by equipment performance problems during the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 This is the overall structural diagram of the electromagnet performance detection device.

[0026] Figure 2 This is a structural diagram of the mechanical components of the electromagnet performance detection device.

[0027] Figure 3 This is an exploded view of the mechanical components of the electromagnet performance detection device.

[0028] Figure 4 This is an exploded view of the internal mechanical components of the electromagnet performance detection device.

[0029] Figure 5 This is a connection diagram of the electromagnet performance detection device. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides an electromagnet performance detection device, and the electromagnet performance detection device includes a distance measuring component 200 and a force measuring component 500.

[0034] Specifically, the distance measuring assembly 200 includes a distance sensor 201 and a follower rod 202. The distance sensor 201 is fixed to one side of the distance adjusting assembly 300. The follower rod 202 is arranged at one end of the distance sensor 201 and is used to measure the distance from the electromagnet to the force sensor.

[0035] The force measuring assembly 500 is arranged on one side of the electromagnet, and includes a mounting plate 501 and a force sensor 502; the mounting plate 501 is arranged on one side of the bottom of the electromagnet; the force sensor 502 is arranged on the top of the mounting plate 501 and directly facing the electromagnet, and is used to measure the impact force of the electromagnet on the force sensor;

[0036] The voltage regulating assembly 600 is connected to the electromagnet and is used to change the voltage supplied to the electromagnet.

[0037] Electromagnets use electric current to generate a magnetic field, thereby controlling the movement of an internal iron core. The strength of the electromagnet's magnetic force depends on the strength of the current and the number of turns in the coil. Electromagnets are often used in devices that require a controllable magnetic field, such as relays and circuit breakers.

[0038] The force sensor is used to detect the output force of the electromagnet during operation. Specifically, the force sensor will be installed at the point of action of the electromagnet. When the electromagnet is energized to generate a magnetic field, the magnetic force generated will push the iron core and hit the force sensor at a certain distance. The force sensor can accurately detect the force generated in this process.

[0039] The distance measuring component 200 is used to accurately measure the distance between the electromagnet and the force sensor, that is, the energized extension distance. During the detection, the energized extension distance needs to be continuously changed to obtain the characteristic curve of the electromagnet to be tested;

[0040] The force measuring assembly 500 is used to record the magnitude of the force generated by the electromagnet under a certain energized extension distance.

[0041] The voltage regulating assembly 600 directly changes the voltage across the electromagnet, thereby changing the magnitude of the force generated by the electromagnet.

[0042] The voltage regulating assembly 600 is a part of the device module, which is composed of an outer box, a control panel, a power switch, a cooling fan, a USB signal transmission port, an intelligent all-in-one machine, a switching power supply, a signal processing module, a signal acquisition module, a driving device, a controller, a No. 1 signal socket, a No. 2 signal socket, a mechanical signal transmission port, etc.;

[0043] The outer box is made of plastic one-piece material, which is portable, light and strong. It is mainly used to fix and protect the modules inside the device.

[0044] The control panel is made of aluminum alloy with a paint finish on the surface, which is anti-corrosion and anti-rust. It is used to fix the operating structure.

[0045] The power switch uses a rocker switch, which controls the on and off of the power of the entire device;

[0046] The cooling fan is mainly used to dissipate heat for the device power supply. As a small fan, the heat dissipation port is designed at the top to ensure that the device power supply can operate safely.

[0047] The USB signal transmission port is used to input the control program;

[0048] The intelligent all-in-one machine is the operating module of the device, which is the integration of the device circuit and the touch screen, and is electrically connected to each module;

[0049] The switching power supply is the provider of the overall power of the device, meeting the energy requirements of each module, and is a large-capacity lithium battery;

[0050] The signal acquisition module is used to collect the electromagnet action signal. It uses a high-precision motion sensor to collect instantaneous actions and transmit the collected data to the signal processing module.

[0051] The signal processing module is mainly responsible for processing and filtering the data transmitted by the acquisition module, transmitting the complete data to the integrated machine, and then converting the analog-to-digital data through the integrated machine to display the collected data digitally;

[0052] The drive device is the power structure of the control module;

[0053] The controller is the overall control structure of the device, which satisfies the control of the mechanical module and facilitates the linkage between the two;

[0054] Signal socket No. 1, signal socket No. 2, and mechanical signal transmission port are all connected to the mechanical module to ensure the connection between the two.

[0055] Since the magnitude of the electromagnetic force of the electromagnet is related to the energized extension distance and energized voltage of the electromagnet, by controlling these two variables and cooperating with the force measuring component 500, the relevant data of the electromagnet can be obtained, which can be compared with a normal electromagnet. If there is an obvious difference, it proves that the measured electromagnet has some fault.

[0056] When in use, the distance measuring component 200 and the voltage regulating component 600 cooperate to change the situation of the electromagnet to be tested, and the output force of the electromagnet is monitored by the force measuring component 500 to generate a characteristic curve to comprehensively analyze the working state and performance of the electromagnet.

[0057] Example 2, reference Figures 1 to 5 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0058] Specifically, it also includes a distance adjustment component 300, which is arranged on one side of the distance measurement component 200 and is used to adjust the distance from the electromagnet to the force sensor.

[0059] The movement direction of the parts in the distance adjustment component 300 is perpendicular to the measuring surface of the force sensor, so that the electromagnet can be kept facing the force sensor. In this way, when the energized extension distance changes, the electromagnet can always be in the same contact point with the force sensor to avoid other variables affecting the measurement of the electromagnetic force.

[0060] The distance adjustment component 300 is driven by a motor to move the lead screw slider, which can accurately adjust the distance between the electromagnet and the force sensor, achieve more accurate test data collection, ensure that the electromagnet is always in the best position under different test conditions, and meet different test requirements.

[0061] Specifically, it also includes a clamping assembly 400, which is arranged on the top of the distance adjustment assembly 300 and is used to fix the electromagnet at a specified position.

[0062] The clamping assembly 400 is used to fix the electromagnet to prevent the electromagnet from being displaced or shaken during the test, thereby ensuring the stability and accuracy of the test. It can keep the electromagnet facing the center of the force sensor measurement surface, ensuring that the installation position of the electromagnet remains consistent during each measurement, and avoiding other variables that affect the measurement of the electromagnetic force.

[0063] Specifically, it also includes a housing component 100, which is used to fix and protect the components inside the device.

[0064] The housing assembly 100 is used to accommodate and protect the various components inside the device, preventing damage to these precision parts by the external environment, such as dust pollution, water vapor pollution, mechanical collision, etc., while providing a stable support and fixing structure for the internal components to ensure that the components remain stable and will not move or loosen during the operation of the equipment, thereby ensuring the normal operation of the equipment.

[0065] The voltage regulating assembly 600 belongs to the device module, and the housing assembly 100, the distance measuring assembly 200, the distance adjusting assembly 300, the clamping assembly 400 and the force measuring assembly 500 belong to the mechanical module.

[0066] Specifically, the distance adjustment component 300 is fixed inside the housing component 100; the distance measuring component 200 is arranged on one side of the distance adjustment component 300; the force measuring component 500 is arranged on the other side of the distance adjustment component 300; the bottom of the clamping component 400 and the top of the distance adjustment component 300 are slidably matched.

[0067] Preferably, a plastic one-piece molded material is used, which is light and durable, and is convenient for moving the device between different workplaces, while providing sufficient strength and impact resistance to ensure the safety of the device during transportation or use.

[0068] Specifically, the housing assembly 100 includes a box cover 101 and a box body 102 , and one side of the box cover 101 is rotatably connected to one side of the top of the box body 102 .

[0069] When the length of the follower rod 202 extending from the distance sensor 201 changes, the length measured by the distance sensor 201 will change.

[0070] Specifically, the pitch adjustment assembly 300 includes a lower motor 301, a lower fixing plate 302, a lower screw rod 303 and a lower screw rod slider 304; the lower motor 301 is arranged on one side of the bottom surface of the box body 102; the lower fixing plate 302 is arranged on one side of the lower motor 301; the lower screw rod slider 304 is slidably connected with the lower fixing plate 302; the lower screw rod 303 penetrates and cooperates with the lower screw rod slider 304, and one end of the lower screw rod 303 cooperates with the lower motor 301;

[0071] The distance adjustment component 300 is automatically adjusted through the control of the lower motor 301, and does not require manual operation, thereby reducing human errors and improving the working efficiency and intelligence of the device.

[0072] When the lower motor 301 drives the lower screw rod 303 to rotate, the lower screw rod slider 304 sleeved on the lower screw rod 303 will translate along the lower fixed plate 302, so that the lower screw rod slider 304 changes its position on the lower fixed plate 302.

[0073] The distance measuring assembly 200 further includes a sensor traction plate 203 , which is fixed to one side of the lower screw slider 304 .

[0074] The axial direction of the follower rod 202 is parallel to the translation direction of the lower screw slider 304 .

[0075] When the lower screw slider 304 translates along the lower fixed plate 302 , it will drive the sensor traction plate 203 to move, thereby driving the follower rod 202 to move. In conjunction with the distance sensor 201 , the moving distance of the lower screw slider 304 can be accurately measured.

[0076] Specifically, the clamping assembly 400 includes an upper motor 401, an upper fixing plate 402, an upper screw rod 403 and an upper screw rod slider 404; the upper fixing plate 402 is fixed to the top of the lower screw rod slider 304; the upper motor 401 is arranged at one end of the upper fixing plate 402; the upper screw rod slider 404 is slidably connected to the upper fixing plate 402; the upper screw rod 403 penetrates and cooperates with the upper screw rod slider 404, and one end of the upper screw rod 403 cooperates with the upper motor 401;

[0077] Similarly, the upper motor 401 drives the upper screw rod 403 to rotate, which causes the upper screw rod slider 404 to slide along the upper fixed plate 402. When the upper screw rod slider 404 slowly approaches the end of the upper fixed plate 402, it fixes the electromagnet between the upper fixed plate 402 and the upper screw rod slider 404.

[0078] The clamping assembly 400 further includes a positioning plate 405 , which is slidably matched with the upper screw slider 404 to ensure that the installation position of the electromagnet on the clamping assembly 400 is not offset.

[0079] The positioning plate 405 is slidably matched with the upper screw slider 404 to ensure that the installation position of the electromagnet on the clamping assembly will not shift, and to ensure that the distance of the electromagnet protruding from the clamping assembly 400 remains unchanged. In this way, the distance between the electromagnet and the force sensor is only determined by the distance adjustment assembly 300, further ensuring the stability of the measurement process.

[0080] Preferably, the positioning plate 405 can also rotate with the upper screw slider 404, or slide or rotate with the upper fixed plate 402, as long as it can provide positioning for the electromagnet before installing the electromagnet, and can be removed after installing the electromagnet without affecting the electromagnet's measurement of electromagnetic force.

[0081] Specifically, the mounting plate 501 is disposed on one side of the bottom of the box body 102 ; the force sensor 502 is disposed on the top of the mounting plate 501 and directly facing the top of one side of the upper fixing plate 402 .

[0082] Due to the existence of the distance adjustment assembly 300 and the clamping assembly 400, the installation position of the electromagnet is relatively high in the housing assembly 100, so a mounting plate 501 is required to make the center of the measuring surface of the force sensor 502 face the electromagnet.

[0083] When in use, the housing assembly 100 is used to accommodate and protect the various components inside the device, preventing damage to these precision parts by the external environment, such as dust pollution, water vapor pollution, mechanical collision, etc., while providing a stable support and fixing structure for the internal components to ensure that the components remain stable and will not move or loosen during the operation of the equipment, thereby ensuring the normal operation of the equipment.

[0084] The distance measuring component 200 is used to accurately measure the distance between the electromagnet and the force sensor, that is, the energized extension distance. During the detection, the energized extension distance needs to be continuously changed to obtain the characteristic curve of the electromagnet to be tested;

[0085] The distance adjustment component 300 is driven by a motor to move the lead screw slider, which can accurately adjust the distance between the electromagnet and the force sensor, achieve more accurate test data collection, ensure that the electromagnet is always in the best position under different test conditions, and meet different test requirements.

[0086] The clamping assembly 400 is used to fix the electromagnet to prevent the electromagnet from being displaced or shaken during the test, thereby ensuring the stability and accuracy of the test. It can keep the electromagnet facing the center of the force sensor measurement surface, ensuring that the installation position of the electromagnet remains consistent during each measurement, and avoiding other variables that affect the measurement of the electromagnetic force.

[0087] The force measuring assembly 500 is used to record the magnitude of the force generated by the electromagnet under a certain energized extension distance. The voltage regulating assembly 600 directly changes the voltage across the electromagnet, thereby changing the magnitude of the force generated by the electromagnet.

[0088] Example 3, reference Figures 1 to 5 , which is the third embodiment of the present invention, and is based on the above two embodiments.

[0089] Specifically, the clamping assembly 400 is used to fix the electromagnet so that the electromagnet faces the force sensor 502 .

[0090] Adjust the positioning plate 405 to the positioning position, and place the electromagnet on one side of the upper fixed plate 402, facing the force sensor 502; use the control module to control the upper motor 401 to rotate, drive the upper screw rod 403 to rotate, thereby adjusting the position of the upper screw rod slider 404 on the upper fixed plate 402, and slowly approach the electromagnet until it is clamped. At this time, adjust the positioning plate 405 to a position that does not affect the measurement.

[0091] Specifically, the distance measuring assembly 200 is used to measure the precise value of the distance between the electromagnet and the force sensor 502 .

[0092] Use the control module to adjust the lower motor 301 of the distance adjustment component 300, adjust the energized extension distance of the electromagnet to a predetermined value, and change the voltage across the electromagnet at the energized extension distance, record the force applied to the force sensor 502 at each voltage, and obtain a data table of voltage and electromagnet impact force.

[0093] Use the control module to fix the voltage across the electromagnet to a predetermined value, adjust the lower motor 301 of the distance adjustment component 300, adjust the energized extension distance of the electromagnet, and under a specific voltage, record the force applied to the force sensor 502 at each energized extension distance to obtain a data table of the energized extension distance and the electromagnet impact force.

[0094] Specifically, the control module is used to change the energized extension distance and energized voltage of the electromagnet to measure the electromagnet characteristic curve, and the monitoring result is obtained by comparing it with the intact electromagnet characteristic curve.

[0095] The characteristic curve of the electromagnet is obtained by controlling variables and obtaining data through repeated experiments. The characteristic curve of the electromagnet is measured and compared with the characteristic curve of the intact electromagnet. According to the processing algorithm, the monitoring result is obtained to judge the performance of the electromagnet.

[0096] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An electromagnet performance detection device, characterized in that: include, A distance measuring assembly (200) comprises a distance sensor (201) and a follower rod (202), wherein the distance sensor (201) is fixed to one side of the distance adjusting assembly (300); the follower rod (202) is arranged at one end of the distance sensor (201) and is used to measure the distance from the electromagnet to the force sensor; A force measuring assembly (500) is arranged on one side of the electromagnet and comprises a mounting plate (501) and a force sensor (502); the mounting plate (501) is arranged on one side of the bottom of the electromagnet; the force sensor (502) is arranged on the top of the mounting plate (501) and directly facing the electromagnet, and is used to measure the impact force of the electromagnet on the force sensor; The voltage regulating assembly (600) is connected to the electromagnet and is used to change the voltage supplied to the electromagnet.

2. The electromagnet performance detection device according to claim 1, characterized in that: It also includes a distance adjustment component (300) which is arranged on one side of the distance measurement component (200) and is used to adjust the distance from the electromagnet to the force sensor.

3. The electromagnet performance detection device according to claim 2, characterized in that: It also includes a clamping assembly (400) which is arranged on the top of the distance adjustment assembly (300) and is used to fix the electromagnet at the top position.

4. The electromagnet performance detection device according to claim 3, characterized in that: It also includes a housing component (100) for fixing and protecting various components inside the device.

5. The electromagnet performance detection device according to claim 4, characterized in that: The distance adjustment component (300) is fixed inside the housing component (100); the distance measuring component (200) is arranged on one side of the distance adjustment component (300); the force measuring component (500) is arranged on the other side of the distance adjustment component (300); and the bottom of the clamping component (400) and the top of the distance adjustment component (300) are slidably matched.

6. The electromagnet performance detection device according to claim 5, characterized in that: The housing assembly (100) comprises a box cover (101) and a box body (102), and one side of the box cover (101) and one side of the top of the box body (102) are rotatably connected.

7. The electromagnet performance detection device according to claim 6, characterized in that: The pitch adjustment assembly (300) comprises a lower motor (301), a lower fixing plate (302), a lower screw rod (303) and a lower screw rod slider (304); the lower motor (301) is arranged on one side of the bottom surface of the box body (102); the lower fixing plate (302) is arranged on one side of the lower motor (301); the lower screw rod slider (304) and the lower fixing plate (302) are slidably connected; the lower screw rod (303) penetrates and cooperates with the lower screw rod slider (304), and one end of the lower screw rod (303) cooperates with the lower motor (301); The distance measuring assembly (200) further comprises a sensor traction plate (203), wherein the sensor traction plate (203) is fixed to one side of the lower screw slider (304).

8. The electromagnet performance detection device according to claim 7, characterized in that: The clamping assembly (400) comprises an upper motor (401), an upper fixing plate (402), an upper screw rod (403) and an upper screw rod slider (404); the upper fixing plate (402) is fixed to the top of the lower screw rod slider (304); the upper motor (401) is arranged at one end of the upper fixing plate (402); the upper screw rod slider (404) and the upper fixing plate (402) are slidably connected; the upper screw rod (403) penetrates and cooperates with the upper screw rod slider (404), and one end of the upper screw rod (403) cooperates with the upper motor (401); The clamping assembly (400) further comprises a positioning plate (405), and the positioning plate (405) and the upper screw slider (404) are slidably matched to ensure that the installation position of the electromagnet on the clamping assembly (400) is not offset.

9. The electromagnet performance detection device according to claim 8, characterized in that: The mounting plate (501) is arranged on one side of the bottom of the box body (102); the force sensor (502) is arranged on the top of the mounting plate (501) and directly facing the top of one side of the upper fixing plate (402).

10. A method for using the electromagnet performance detection device as claimed in claims 1 to 9, characterized in that: Using a clamping assembly (400) to fix the electromagnet so that the electromagnet faces the force sensor (502); Using the distance measuring assembly (200) to measure the precise value of the distance between the electromagnet and the force sensor (502); Use the control module to change the energized extension distance and energized voltage of the electromagnet to measure the electromagnet characteristic curve, and compare it with the intact electromagnet characteristic curve to obtain the monitoring result.

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