A coil inductance detection device with multi-angle polarization simulation function

Abstract

This invention discloses a coil inductance testing device with multi-angle polarization simulation function, relating to the field of coil testing technology. The testing device simulates the effect of polarization by setting three vibration units with mutually perpendicular vibration directions below the mounting base. By controlling the vibration intensity in the three directions and changing the angle between two vibration units in the horizontal direction, multiple angles of polarization and various different polarizations can be simulated. The control mechanism controls the adjustment mechanism according to the change of magnetic field during coil vibration. The adjustment mechanism dynamically adjusts the vibration intensity, thereby simulating the influence of vibration on inductance change during coil operation and the reverse influence of coil change on vibration, forming a closed-loop feedback, thereby improving the detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of coil testing technology, specifically a coil inductance testing device with multi-angle polarization simulation function. Background Technology

[0002] Existing or traditional coil inductance testing equipment can only simulate vibration from a single direction when testing coil inductance, which cannot effectively simulate the vibration of the coil during operation, and therefore cannot accurately detect the inductance of the coil under real operating conditions.

[0003] When a coil vibrates during operation, it may cause changes in the shape or gap of the coil, thus affecting the inductance of the coil. When the shape or gap of the coil changes, it may affect its working efficiency, thereby increasing or decreasing the vibration generated by the equipment that operates through the coil. Traditional coil testing equipment uses a fixed vibration frequency or intensity during vibration simulation, and cannot dynamically adjust the vibration frequency or intensity according to the changes in the coil during the testing process, thus affecting the accuracy of the test. Summary of the Invention

[0004] The purpose of this invention is to provide a coil inductance testing device with multi-angle polarization simulation function to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A coil inductance testing device with multi-angle polarization simulation function is disclosed. The testing device includes a base, a testing platform, a testing mechanism, a fixing mechanism, a vibration simulation mechanism, a control mechanism, and an adjustment mechanism. The base and the testing platform are fixedly connected, the testing platform and the testing mechanism are fixedly connected, two fixing mechanisms are provided, and the two fixing mechanisms are fixedly connected to the testing platform. The vibration simulation mechanism abuts against the testing platform, the base and the vibration simulation mechanism are fixedly connected, the control mechanism and the fixing mechanism are fixedly connected, the adjustment mechanism and the vibration simulation mechanism are fixedly connected, and the controller and the testing mechanism are electrically connected.

[0007] The detection platform is fixed by a base, and the coil to be tested is placed on the platform. The fixing mechanism automatically fixes the coil in the designated position. Two probes from two detection mechanisms automatically connect to the two contacts of the coil to be tested, energizing the coil. The controller and the two probes of the detection mechanism are electrically connected. The two probes are connected to two bridge circuits of the controller through wires. By adjusting the potential difference between the two bridge circuits, the inductance of the coil is measured. A vibration simulation mechanism is used to set three mutually perpendicular vibration directions. The vibrations in the three directions are combined into a total vibration vector, thus simulating polarization. By controlling the vibration intensity in the three directions, multiple angles of polarization are simulated. The control mechanism controls the adjustment mechanism according to the change of magnetic field during the coil's vibration. Through the adjustment mechanism and the vibration simulation mechanism, the vibration intensity is adjusted, thus simulating the effect of vibration on the change of inductance during coil operation, and the reverse effect of the change of inductance on the vibration, forming a closed-loop feedback, thereby improving the detection accuracy.

[0008] Furthermore, the vibration simulation mechanism includes vibration units, transmission units, motors, reducers, rotating shafts, a first fixed plate, and a second fixed plate. There are three vibration units and three transmission units. The three vibration units are fixedly connected to the three transmission units respectively. The transmission units abut against the detection platform. The motor is fixedly connected to the base. The motor output end is fixedly connected to the reducer input end. The reducer output end is fixedly connected to the rotating shaft. The rotating shaft is fixedly connected to the first fixed plate. The first fixed plate is fixedly connected to one vibration unit, and the second fixed plate is fixedly connected to two vibration units.

[0009] Vibration is generated by a vibration unit and transmitted to the detection platform through a transmission unit, thereby inducing vibration in the coil to be detected. By setting three mutually perpendicular vibration units, the vibrations in the three directions are combined into a total vibration vector, thus simulating polarization. By individually controlling the three vibration units to produce different vibration intensities, multiple angles of polarization can be simulated. One vibration unit is fixed to a first fixed plate, and the motor output end is fixed to the reducer input end. The reducer output end is fixed to the rotating shaft, causing the motor to drive the rotating shaft to rotate. The rotating shaft drives the first fixed plate to rotate, changing the angle between the two vibration units in the horizontal direction, thus simulating various different polarizations such as circular polarization and linear polarization.

[0010] Furthermore, the vibration unit includes a first sleeve, an electromagnet, a first spring, and an armature. The first sleeve is provided with a first mounting groove, the armature is fixedly connected to the first mounting groove, the first spring is placed in the first mounting groove, the electromagnet is fixedly connected to the first spring, and the electromagnet is slidably connected to the first mounting groove.

[0011] A first mounting slot is provided through a first sleeve, and an armature is fixed at the bottom of the first mounting slot. A first spring is installed inside the first mounting slot, with one end of the first spring fixed to the bottom of the first mounting slot and the other end of the first spring fixed to an electromagnet. By inputting a current of a certain frequency to the electromagnet, the electromagnet generates magnetic force, causing the electromagnet to slide towards the armature in the first mounting slot, compressing the first spring. When the electromagnet is de-energized, the magnetic force disappears, and the first spring releases its elastic force, causing it to reset. The back-and-forth movement of the electromagnet drives the transmission unit to impact the detection platform, thereby generating vibration.

[0012] Furthermore, the transmission unit includes a second sleeve, a first slider, and a second slider. The second sleeve and the first sleeve are fixedly connected. The second sleeve is provided with a first sliding groove. The first slider and the first sliding groove are slidably connected. The first slider and the electromagnet are fixedly connected. The second slider and the first sliding groove are slidably connected. A magnetorheological fluid is provided in the first sliding groove.

[0013] A second sleeve is fixed on a first sleeve. The second sleeve has a first sliding groove. A first slider and an electromagnet are fixed together. The first slider moves with the electromagnet. The first sliding groove is filled with magnetic fluid, which pushes the first slider to move the magnetic fluid. The magnetic fluid pushes the second slider to move, causing the second slider to slide out of the first sliding groove and impact the detection platform to generate vibration.

[0014] Furthermore, the fixing mechanism includes a No. 1 electric cylinder, a connecting plate, a No. 1 slide rod, a No. 2 spring, and a clamping plate. The No. 1 electric cylinder is fixedly connected to the detection platform, the output end of the No. 1 electric cylinder is fixedly connected to the connecting plate, the connecting plate is fixedly connected to the No. 1 slide rod, the clamping plate is provided with a No. 2 sliding groove, the No. 2 spring is sleeved on the outside of the No. 1 slide rod, and the clamping plate is fixedly connected to the No. 2 spring.

[0015] The No. 1 electric cylinder output end is fixed to the connecting plate, which drives the connecting plate to move. The connecting plate is connected to the clamping plate through the No. 2 spring, which in turn drives the clamping plate to move, bringing the two clamping plates closer to each other, thereby clamping and fixing the coil to be tested. The spring prevents the clamping force from being too great and damaging the coil. The No. 1 slide rod guides the spring and clamping plate to prevent the coil's fixed position from deviating from the predetermined position and affecting the test results.

[0016] Furthermore, the control mechanism includes a fixed rod, a second sliding rod, a third slider, a resistance wire, a metal sheet, and a magnet. The clamping plate has a second mounting slot. The fixed rod is fixedly connected to the second mounting slot, the second sliding rod is fixedly connected to the second mounting slot, the third slider is slidably connected to the second sliding rod, the resistance wire is fixedly connected to the fixed rod, the metal sheet is fixedly connected to the resistance wire, and there are two magnets. One magnet is fixedly connected to the third slider, and the other magnet is fixedly connected to the second mounting slot. The metal sheet is electrically connected to the controller.

[0017] A fixing rod and a sliding rod are fixed in the second mounting slot. A resistance wire is installed on the fixing rod, a metal plate is installed on the resistance wire, and a terminal is installed on the metal plate to connect the wire. A third slider is installed on the second sliding rod, so that the third slider and the resistance wire are in contact. By installing a terminal on the third slider, the current passes through the third slider, the resistance wire, and the metal plate, and is then conducted to the wire on the metal plate. A magnet is fixed on the third slider. When the detection coil vibrates during detection, the magnetic field changes, causing the magnet to move according to the change in the magnetic field, thereby changing the resistance value. The wire on the metal plate is connected to a controller, and the controller controls the adjustment mechanism according to the change in resistance value.

[0018] Furthermore, the adjustment mechanism includes an electromagnetic coil and a dispersing unit. The electromagnetic coil is fixedly connected to the second sleeve, the dispersing unit is fixedly connected to the second sleeve, and the controller is electrically connected to the electromagnetic coil.

[0019] An electromagnetic coil fixed inside the second sleeve is connected to a controller via an electrical signal. The controller controls the electromagnetic coil to generate a magnetic field, thereby changing the viscosity of the magnetic fluid in the first sliding groove. This adjusts the resistance of the slider and thus changes the intensity of the vibration. However, when it is necessary to reduce the viscosity of the magnetic fluid, it is dispersed by a dispersion unit, which reduces the resistance of the slider and thus increases the vibration intensity.

[0020] Furthermore, the distributed unit includes piezoelectric ceramics and electrodes. The second sleeve is provided with a third mounting groove. Several piezoelectric ceramics are provided. The electrodes are fixedly connected to the third mounting groove. Several piezoelectric ceramics and electrodes are fixedly connected. The electrodes are electrically connected to the controller.

[0021] By connecting the electrodes and the controller via electrical signals, the controller controls the current of the input electrodes, causing the piezoelectric ceramic in the No. 3 mounting slot to vibrate, thereby rapidly dispersing the magnetic fluid, reducing its viscosity, and increasing the vibration intensity.

[0022] Furthermore, the testing platform includes a mounting base and a No. 3 spring, which are fixedly connected, and the No. 3 spring is fixedly connected to the base.

[0023] By fixing the two ends of the No. 3 spring to the mounting base and the base respectively, the No. 2 slider hits the mounting base, causing the mounting base to shake, thereby achieving the effect of simulating vibration.

[0024] Furthermore, the testing mechanism includes a testing head, a second electric cylinder, a first linear module, and a second linear module. The output end of the second electric cylinder is fixedly connected to the testing head, the sliding end of the first linear module is fixedly connected to the second electric cylinder, the sliding end of the second linear module is fixedly connected to the first linear module, and the second linear module is fixedly connected to the mounting base.

[0025] By fixing the second linear module to the mounting base, and fixing the sliding end of the second linear module to the first linear module, the second linear module can drive the first linear module to move horizontally. By fixing the sliding end of the first linear module to the second electric cylinder, the first linear module can drive the second electric cylinder to move vertically. By fixing the output end of the second electric cylinder to the detection head, the second electric cylinder can drive the detection head to move to the contact point of the coil to be tested, thereby automatically testing the coil.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. By setting up three vibration units with mutually perpendicular vibration directions, the vibrations in the three directions are combined into a total vibration vector, thereby simulating polarization. By controlling the vibration intensity in the three directions, polarization at multiple angles can be simulated. By changing the angle between two vibration units in the horizontal direction, various different polarizations such as circular polarization and linear polarization can be simulated.

[0028] 2. The control mechanism controls the adjustment mechanism based on the change of magnetic field during the vibration of the coil. The adjustment mechanism dynamically adjusts the intensity of the vibration, thereby simulating the effect of vibration on the change of inductance of the coil during operation, and the effect of the coil change on the vibration in the opposite direction, forming a closed-loop feedback, thereby improving the detection accuracy.

[0029] 3. Two clamping plates are driven to move closer together by two No. 1 electric cylinders, thereby clamping and fixing the coil to be tested in a designated position. The two detection heads automatically contact the two contacts of the coil to be tested, thereby realizing automated detection of the coil. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the fixing mechanism of the present invention;

[0032] Figure 3 yes Figure 2 A magnified view of part A;

[0033] Figure 4 This is a schematic diagram of the structure of the vibration unit of the present invention;

[0034] Figure 5 yes Figure 4 A magnified view of part B;

[0035] Figure 6 This is a schematic diagram of the vibration simulation mechanism of the present invention;

[0036] Figure 7 This is a schematic diagram of the transmission unit of the present invention;

[0037] Figure 8 This is a schematic diagram of the connection of the first sliding rod of the present invention;

[0038] Figure 9 yes Figure 4 A magnified view of a portion of C;

[0039] Figure 10 This is a schematic diagram of the control mechanism of the present invention.

[0040] In the diagram: 1. Base; 2. Testing platform; 21. Mounting seat; 22. Spring No. 3; 3. Testing mechanism; 31. Testing head; 32. Electric cylinder No. 2; 33. Linear module No. 1; 34. Linear module No. 2; 4. Fixing mechanism; 41. Electric cylinder No. 1; 42. Connecting plate; 43. Slide rod No. 1; 44. Spring No. 2; 45. Clamping plate; 451. Sliding groove No. 2; 452. Mounting groove No. 2; 5. Vibration simulation mechanism; 51. Vibration unit; 511. Sleeve No. 1; 5111. Mounting groove No. 1; 512. Electromagnet; 513. Spring No. 1; 514. 52. Armature; 521. Transmission unit; 521. Sleeve No. 2; 5211. Sliding groove No. 1; 5212. Mounting groove No. 3; 522. Slider No. 1; 523. Slider No. 2; 53. Motor; 54. Reducer; 55. Rotating shaft; 56. Fixing plate No. 1; 57. Fixing plate No. 2; 6. Control mechanism; 61. Fixing rod; 62. Sliding rod No. 2; 63. Slider No. 3; 64. Resistance wire; 65. Metal sheet; 66. Magnet block; 7. Adjustment mechanism; 71. Electromagnetic coil; 72. Dispersion unit; 721. Piezoelectric ceramic; 722. Electrode; 8. Controller. Detailed Implementation

[0041] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example: Figures 1-5 As shown, the present invention provides a technical solution for a coil inductance testing device with multi-angle polarization simulation function. The testing device includes a base 1, a testing platform 2, a testing mechanism 3, a fixing mechanism 4, a vibration simulation mechanism 5, a control mechanism 6, and an adjustment mechanism 7. The base 1 and the testing platform 2 are fixedly connected, the testing platform 2 and the testing mechanism 3 are fixedly connected, two fixing mechanisms 4 are provided, and the two fixing mechanisms 4 are fixedly connected to the testing platform 2. The vibration simulation mechanism 5 abuts against the testing platform 2. The base 1 and the vibration simulation mechanism 5 are fixedly connected, the control mechanism 6 and the fixing mechanism 4 are fixedly connected, the adjustment mechanism 7 and the vibration simulation mechanism 5 are fixedly connected, and the controller 8 and the testing mechanism 3 are electrically connected.

[0043] The detection platform 2 is fixed by the base 1, and the coil to be tested is placed on the detection platform 2. The fixing mechanism 4 automatically fixes the coil to be tested in the designated position. The two probes of the two detection mechanisms 3 are automatically connected to the two contacts of the coil to be tested, so that the coil to be tested is energized. The controller 8 and the two probes of the detection mechanism 3 are electrically connected. The two probes are connected to the two bridge circuits of the controller 8 by wires. By adjusting the potential difference between the two bridge circuits, the inductance of the coil is measured. The vibration simulation mechanism 5 sets three mutually perpendicular vibration directions. The vibration of the three directions is combined into a total vibration vector to simulate polarization. By controlling the vibration intensity of the three directions, multiple angles of polarization are simulated. The control mechanism 6 controls the adjustment mechanism 7 according to the change of magnetic field during the vibration of the coil. Through the adjustment mechanism 7 and the vibration simulation mechanism 5, the vibration intensity is adjusted, thereby simulating the effect of vibration on the change of inductance of the coil during operation, and the reverse effect of the change of inductance on the vibration, forming a closed loop feedback, thereby improving the detection accuracy.

[0044] like Figure 5 and Figure 6 As shown, the vibration simulation mechanism 5 includes vibration units 51, transmission units 52, motors 53, reducers 54, rotating shafts 55, a first fixing plate 56, and a second fixing plate 57. There are three vibration units 51 and three transmission units 52. The three vibration units 51 are fixedly connected to the three transmission units 52 respectively. The transmission units 52 abut against the detection platform 2. The motor 53 is fixedly connected to the base 1. The output end of the motor 53 is fixedly connected to the input end of the reducer 54. The output end of the reducer 54 is fixedly connected to the rotating shaft 55. The rotating shaft 55 is fixedly connected to the first fixing plate 56. The first fixing plate 56 is fixedly connected to one vibration unit 51, and the second fixing plate 57 is fixedly connected to two vibration units 51.

[0045] Vibration is generated by vibration unit 51 and transmitted to detection platform 2 through transmission unit 52, thereby generating vibration in the coil to be detected. By setting three mutually perpendicular vibration units 51, the vibrations in the three directions are combined into a total vibration vector, thus simulating polarization. By individually controlling the three vibration units 51 to generate different vibration intensities, multiple angles of polarization can be simulated. One vibration unit 51 is fixed to the first fixing plate 56, and the output end of motor 53 is fixed to the input end of reducer 54. The output end of reducer 54 is fixed to the rotating shaft 55, so that motor 53 drives the rotating shaft 55 to rotate. The rotating shaft 55 drives the first fixing plate 56 to rotate, causing the angle between the two vibration units 51 in the horizontal direction to change, thereby simulating various different polarizations such as circular polarization and linear polarization.

[0046] like Figure 5As shown, the vibration unit 51 includes a first sleeve 511, an electromagnet 512, a first spring 513, and an armature 514. The first sleeve 511 is provided with a first mounting groove 5111. The armature 514 is fixedly connected to the first mounting groove 5111. The first spring 513 is placed in the first mounting groove 5111. The electromagnet 512 is fixedly connected to the first spring 513. The electromagnet 512 is slidably connected to the first mounting groove 5111.

[0047] A first mounting groove 5111 is provided through the first sleeve 511. An armature 514 is fixed at the bottom of the first mounting groove 5111. A first spring 513 is installed in the first mounting groove 5111. One end of the first spring 513 is fixed to the bottom of the first mounting groove 5111, and the other end of the first spring 513 is fixed to the electromagnet 512. By inputting a current of a certain frequency to the electromagnet 512, the electromagnet 512 generates magnetic force, thereby causing the electromagnet 512 to slide towards the armature 514 in the first mounting groove 5111, and the first spring 513 is compressed. When the electromagnet 512 is not energized, the magnetic force disappears, and the first spring 513 releases its elastic force, causing it to return to its original position. The back-and-forth movement of the electromagnet 512 drives the transmission unit 52 to impact the detection platform 2, thereby generating vibration.

[0048] like Figure 5 and Figure 7 As shown, the transmission unit 52 includes a second sleeve 521, a first slider 522, and a second slider 523. The second sleeve 521 is fixedly connected to the first sleeve 511. The second sleeve 521 is provided with a first sliding groove 5211. The first slider 522 is slidably connected to the first sliding groove 5211. The first slider 522 is fixedly connected to the electromagnet 512. The second slider 523 is slidably connected to the first sliding groove 5211. The first sliding groove 5211 is provided with a magnetorheological fluid.

[0049] A second sleeve 521 is fixed on a first sleeve 511. The second sleeve 521 is provided with a first sliding groove 5211. A first slider 522 and an electromagnet 512 are fixed. As the slider moves with the electromagnet 512, the first sliding groove 5211 is filled with magnetic fluid, which causes the first slider 522 to push the magnetic fluid. The magnetic fluid pushes the second slider 523 to move, causing the second slider 523 to slide out of the first sliding groove 5211 and impact the detection platform 2 to generate vibration.

[0050] like Figure 2 and Figure 8 As shown, the fixing mechanism 4 includes a first electric cylinder 41, a connecting plate 42, a first sliding rod 43, a second spring 44, and a clamping plate 45. The first electric cylinder 41 is fixedly connected to the detection platform 2. The output end of the first electric cylinder 41 is fixedly connected to the connecting plate 42. The connecting plate 42 is fixedly connected to the first sliding rod 43. The clamping plate 45 is provided with a second sliding groove 451. The second spring 44 is sleeved on the first sliding rod 43. The clamping plate 45 and the second spring 44 are fixedly connected.

[0051] The output end of the first electric cylinder 41 is fixed to the connecting plate 42, which drives the connecting plate 42 to move. The connecting plate 42 is connected to the clamping plate 45 through the second spring 44, thereby driving the clamping plate 45 to move and bringing the two clamping plates 45 closer to each other, thus clamping and fixing the coil to be tested. The spring prevents the clamping force from being too large and damaging the coil. The first slide rod 43 guides the spring and the clamping plate 45 to prevent the coil from deviating from the predetermined position and affecting the test results.

[0052] like Figure 3 , Figure 9 and Figure 10 As shown, the control mechanism 6 includes a fixed rod 61, a second sliding rod 62, a third sliding block 63, a resistance wire 64, a metal sheet 65, and a magnet 66. The clamping plate 45 is provided with a second mounting groove 452. The fixed rod 61 is fixedly connected to the second mounting groove 452, the second sliding rod 62 is fixedly connected to the second mounting groove 452, the third sliding block 63 is slidably connected to the second sliding rod 62, the resistance wire 64 is fixedly connected to the fixed rod 61, the metal sheet 65 is fixedly connected to the resistance wire 64, and there are two magnets 66. One magnet 66 is fixedly connected to the third sliding block 63, and the other magnet 66 is fixedly connected to the second mounting groove 452. The metal sheet 65 is electrically connected to the controller 8.

[0053] The fixing rod 61 and the sliding rod 62 are fixed in the second mounting slot 452. The fixing rod 61 is equipped with a resistance wire 64, the resistance wire 64 is equipped with a metal piece 65, and the metal piece 65 is equipped with a terminal to connect the wire. The sliding rod 62 is equipped with a third slider 63, which abuts against the resistance wire 64. The terminal on the third slider 63 allows the current to pass through the third slider 63, the resistance wire 64, and the metal piece 65, and then be conducted to the wire of the metal piece 65. The magnet 66 is fixed on the third slider 63. When the detection coil vibrates during detection, the magnetic field changes, causing the magnet 66 to move according to the change in the magnetic field, thereby changing the resistance value. The wire of the metal piece 65 is connected to the controller 8, and the controller 8 controls the adjustment mechanism 7 according to the change in resistance value.

[0054] like Figure 7 As shown, the adjustment mechanism 7 includes an electromagnetic coil 71 and a dispersing unit 72. The electromagnetic coil 71 is fixedly connected to the second sleeve 521, the dispersing unit 72 is fixedly connected to the second sleeve 521, and the controller 8 is electrically connected to the electromagnetic coil 71.

[0055] The electromagnetic coil 71, fixed inside the second sleeve 521, is connected to the controller 8 via an electrical signal. The controller 8 controls the electromagnetic coil 71 to generate a magnetic field, thereby changing the viscosity of the magnetic fluid in the first sliding groove 5211, thus adjusting the resistance of the slider and changing the intensity of vibration. However, when it is necessary to reduce the viscosity of the magnetic fluid, it is dispersed by the dispersion unit 72, which reduces the resistance of the slider and thus increases the vibration intensity.

[0056] like Figure 7 As shown, the dispersion unit 72 includes a piezoelectric ceramic 721 and an electrode 722. The second sleeve 521 is provided with a third mounting groove 5212. There are several piezoelectric ceramics 721. The electrode 722 is fixedly connected to the third mounting groove 5212. Several piezoelectric ceramics 721 and the electrode 722 are fixedly connected. The electrode 722 is electrically connected to the controller 8.

[0057] The electrode 722 is electrically connected to the controller 8, which controls the current of the input electrode 722, causing the piezoelectric ceramic 721 in the third mounting slot 5212 to vibrate, thereby rapidly dispersing the magnetic fluid, reducing its viscosity, and increasing the vibration intensity.

[0058] like Figure 1 As shown, the testing platform 2 includes a mounting base 21 and a third spring 22. The mounting base 21 and the third spring 22 are fixedly connected, and the third spring 22 is fixedly connected to the base 1.

[0059] By fixing the two ends of the No. 3 spring 22 to the mounting base 21 and the base 1 respectively, the No. 2 slider 523 impacts the mounting base 21, causing the mounting base 21 to shake, thereby achieving the effect of simulating vibration.

[0060] like Figure 1 As shown, the testing mechanism 3 includes a testing head 31, a second electric cylinder 32, a first linear module 33, and a second linear module 34. The output end of the second electric cylinder 32 is fixedly connected to the testing head 31, the sliding end of the first linear module 33 is fixedly connected to the second electric cylinder 32, the sliding end of the second linear module 34 is fixedly connected to the first linear module 33, and the second linear module 34 is fixedly connected to the mounting base 21.

[0061] By fixing the second linear module 34 to the mounting base 21, and fixing the sliding end of the second linear module 34 to the first linear module 33, the second linear module 34 can drive the first linear module 33 to move horizontally. By fixing the sliding end of the first linear module 33 to the second electric cylinder 32, the first linear module 33 can drive the second electric cylinder 32 to move vertically. By fixing the output end of the second electric cylinder 32 to the detection head 31, the second electric cylinder 32 can drive the detection head 31 to move to the contact point of the coil to be tested, thereby automatically testing the coil.

[0062] Working principle: The coil to be tested is placed on the mounting base 21. Two electric cylinders 41 drive two clamping plates 45 to move closer together, thereby clamping and fixing the coil to be tested in a designated position. Two detection heads 31 automatically contact the two contacts of the coil to be tested, energizing the coil. The controller 8 and the two detection heads 31 are electrically connected. The two detection heads 31 are connected to two bridge circuits of the controller 8 via wires. By adjusting the potential difference between the two bridge circuits, the inductance of the coil is measured. Three vibration units 51 with mutually perpendicular vibration directions are set up, and the vibration is transmitted to the mounting base 21 through the transmission unit 52, thereby simulating polarization. By controlling the vibration intensity in three directions, multiple polarization angles are simulated. When the detection coil vibrates during detection, the magnetic field changes, causing the magnet 66 to move according to the change in magnetic field, thereby changing the resistance value of the circuit. The controller 8 controls the magnetic field intensity generated by the electromagnetic coil 71 according to the change in resistance value, changing the viscosity of the magnetic fluid in the first sliding groove 5211, thereby changing the resistance of the slider. The controller 8 controls the piezoelectric ceramic 721 to vibrate, quickly reducing the viscosity of the magnetic fluid, thereby adjusting the vibration intensity. This simulates the effect of vibration on the inductance change when the coil is working, and the inverse effect of the inductance change on the vibration, forming a closed-loop feedback, thereby improving the detection accuracy.

[0063] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coil inductance detection device with multi-angle polarization simulation function, characterized in that: The testing equipment includes a base (1), a testing platform (2), a testing mechanism (3), a fixing mechanism (4), a vibration simulation mechanism (5), a control mechanism (6), an adjustment mechanism (7), and a controller (8). The base (1) and the testing platform (2) are fixedly connected. The testing platform (2) and the testing mechanism (3) are fixedly connected. There are two fixing mechanisms (4), and the two fixing mechanisms (4) are fixedly connected to the testing platform (2). The vibration simulation mechanism (5) and the testing platform (2) abut against each other. The base (1) and the vibration simulation mechanism (5) are fixedly connected. The control mechanism (6) and the fixing mechanism (4) are fixedly connected. The adjustment mechanism (7) and the vibration simulation mechanism (5) are fixedly connected. The controller (8) and the testing mechanism (3) are electrically connected. The vibration simulation mechanism (5) includes a vibration unit (51), a transmission unit (52), a motor (53), a reducer (54), a rotating shaft (55), a first fixing plate (56), and a second fixing plate (57). There are three vibration units (51) and three transmission units (52). The three vibration units (51) are fixedly connected to the three transmission units (52) respectively. The transmission units (52) abut against the detection platform (2). The motor (53) is fixedly connected to the base (1). The output end of the motor (53) is fixedly connected to the input end of the reducer (54). The output end of the reducer (54) is fixedly connected to the rotating shaft (55). The rotating shaft (55) is fixedly connected to the first fixing plate (56). The first fixing plate (56) is fixedly connected to one vibration unit (51). The second fixing plate (57) is fixedly connected to two vibration units (51). The fixing mechanism (4) includes a first electric cylinder (41), a connecting plate (42), a first sliding rod (43), a second spring (44), and a clamping plate (45). The first electric cylinder (41) is fixedly connected to the detection platform (2). The output end of the first electric cylinder (41) is fixedly connected to the connecting plate (42). The connecting plate (42) is fixedly connected to the first sliding rod (43). The clamping plate (45) is provided with a second sliding groove (451). The second spring (44) is sleeved on the first sliding rod (43). The clamping plate (45) and the second spring (44) are fixedly connected. The control mechanism (6) includes a fixed rod (61), a second sliding rod (62), a third slider (63), a resistance wire (64), a metal sheet (65), and a magnet (66). The clamping plate (45) is provided with a second mounting groove (452). The fixed rod (61) and the second mounting groove (452) are fixedly connected. The second sliding rod (62) and the second mounting groove (452) are fixedly connected. The third slider (63) and the second sliding rod (62) are slidably connected. The resistance wire (64) and the fixed rod (61) are fixedly connected. The metal sheet (65) and the resistance wire (64) are fixedly connected. There are two magnets (66). One magnet (66) is fixedly connected to the third slider (63), and the other magnet (66) is fixedly connected to the second mounting groove (452). The metal sheet (65) is electrically connected to the controller (8).

2. The coil inductance detection device with multi-angle polarization simulation function according to claim 1, characterized in that: The vibration unit (51) includes a first sleeve (511), an electromagnet (512), a first spring (513), and an armature (514). The first sleeve (511) is provided with a first mounting groove (5111). The armature (514) and the first mounting groove (5111) are fixedly connected. The first spring (513) is placed in the first mounting groove (5111). The electromagnet (512) and the first spring (513) are fixedly connected. The electromagnet (512) and the first mounting groove (5111) are slidably connected.

3. The coil inductance detection device with multi-angle polarization simulation function according to claim 2, characterized in that: The transmission unit (52) includes a second sleeve (521), a first slider (522), and a second slider (523). The second sleeve (521) and the first sleeve (511) are fixedly connected. The second sleeve (521) is provided with a first sliding groove (5211). The first slider (522) and the first sliding groove (5211) are slidably connected. The first slider (522) and the electromagnet (512) are fixedly connected. The second slider (523) and the first sliding groove (5211) are slidably connected. The first sliding groove (5211) is provided with a magnetorheological fluid.

4. The coil inductance detection device with multi-angle polarization simulation function according to claim 3, characterized in that: The adjustment mechanism (7) includes an electromagnetic coil (71) and a dispersing unit (72). The electromagnetic coil (71) is fixedly connected to the second sleeve (521), the dispersing unit (72) is fixedly connected to the second sleeve (521), and the controller (8) is electrically connected to the electromagnetic coil (71).

5. The coil inductance detection device with multi-angle polarization simulation function according to claim 4, characterized in that: The dispersion unit (72) includes a piezoelectric ceramic (721) and an electrode (722). The second sleeve (521) is provided with a third mounting groove (5212). There are several piezoelectric ceramics (721). The electrode (722) and the third mounting groove (5212) are fixedly connected. Several piezoelectric ceramics (721) and electrodes (722) are fixedly connected. The electrodes (722) and the controller (8) are electrically connected.

6. A coil inductance detection device with multi-angle polarization simulation function according to claim 5, characterized in that: The testing platform (2) includes a mounting base (21) and a No. 3 spring (22), the mounting base (21) and the No. 3 spring (22) are fixedly connected, and the No. 3 spring (22) and the base (1) are fixedly connected.

7. The coil inductance detection device with multi-angle polarization simulation function according to claim 6, characterized in that: The detection mechanism (3) includes a detection head (31), a second electric cylinder (32), a first linear module (33), and a second linear module (34). The output end of the second electric cylinder (32) is fixedly connected to the detection head (31). The sliding end of the first linear module (33) is fixedly connected to the second electric cylinder (32). The sliding end of the second linear module (34) is fixedly connected to the first linear module (33). The second linear module (34) is fixedly connected to the mounting base (21).

Images