CN218885233U - Dynamic magnetic coupling force testing device and system - Google Patents

Abstract

The utility model relates to the field of medical equipment, and discloses a dynamic magnetic coupling force testing device, which comprises a detection base; a drive module; a first position detection module; a force sensor; the upper detection table is used for mounting the first magnet array; the lower detection table is arranged opposite to the upper detection table and used for mounting a second magnet array; the driving module, the first position detection module, the force sensor, the upper detection table and the lower detection table are connected with the detection base; the driving module is used for driving at least one of the upper detection table and the lower detection table to move so as to change the distance between the first magnet array and the second magnet array which are arranged on the driving module, the first position detection module is used for detecting the distance between the first magnet array and the second magnet array, and the force sensor is used for detecting the magnetic coupling force between the first magnet array and the second magnet array. The utility model also discloses a developments magnetic coupling power test system.

Description

Dynamic magnetic coupling force testing device and system

Technical Field

The utility model relates to the field of medical equipment, in particular to developments magnetic coupling force testing arrangement and system.

Background

The magnet has wide application in the fields of industry, medicine, astronomy, military and the like due to the particularity of electromagnetic force, and is an important industrial element. The attractive force of a magnet is derived from electromagnetic effects, and specifically, due to the special internal structure of the atoms of the magnet, the atoms themselves have magnetic moments, thereby generating a magnetic field.

Due to the special processing mode of the magnet, the magnetizing performance of different magnets is difficult to be divided in a consistent manner. When multiple magnets are combined into a magnet array, assembly errors can make uniform division of different magnet arrays more difficult. In designing the apparatus in the medical field, such uncertain factors can cause a great risk, and no related device in the prior art can accurately test and construct the functional relationship between the coupling distance and the magnetic coupling force of the magnet array, so that the magnetic attraction force data between the magnet arrays cannot be dynamically adjusted in real time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a developments magnetic coupling power testing arrangement and system can accurate test two coupling intervals and magnetic coupling power between the magnet array, realizes the real-time dynamic adjustment of the magnetic coupling power between two magnet arrays.

In order to solve the above technical problem, the first aspect of the present invention provides a dynamic magnetic coupling force testing apparatus, including: detecting a base; a drive module; a first position detection module; a force sensor; the upper detection table is used for mounting the first magnet array; the lower detection table is arranged opposite to the upper detection table and used for mounting a second magnet array; the driving module, the first position detection module, the force sensor, the upper detection table and the lower detection table are connected with the detection base; the driving module is used for driving at least one of the upper detection table and the lower detection table to move so as to change the distance between the first magnet array and the second array which are installed on the driving module, the first position detection module is used for detecting the distance between the first magnet array and the second magnet array, and the force sensor is used for detecting the magnetic coupling force between the first magnet array and the second magnet array.

Optionally, the upper detection table includes an installation table and a first side plate fixedly connected to the installation table; the mounting table is in transmission connection with the driving module and used for mounting the first magnet array, and the first detection module detects the distance between the first magnet array and the second magnet array by detecting the position of the first side plate.

Optionally, the first position detection module includes a detection structure and a synchronization structure, the detection structure is fixed on the detection base, and the synchronization structure is movably connected to the detection structure; the synchronization structure abuts against the first side plate, and the detection structure detects the distance between the first magnet array and the second magnet array by detecting the position of the synchronization structure.

Optionally, the detecting structure includes a mounting seat and an optical sensor, and the synchronizing structure includes an elastic member and a sliding rod; the mounting seat is fixed on the detection base, the optical sensor and the elastic piece are fixed on the mounting seat, the sliding rod is provided with two opposite ends, one end of the sliding rod abuts against the elastic piece, and the other end of the sliding rod abuts against the first side plate; the optical sensor detects the distance between the first magnet array and the second magnet array by detecting that the sliding rod presses against the end of the elastic piece.

Optionally, the driving module includes a motor and a moving assembly in transmission connection with the servo motor, and the moving assembly is fixed on the detection base; the mounting table is fixedly connected to the moving assembly, and the motor drives the mounting table to move up and down through the moving assembly.

Optionally, the moving assembly includes a screw rod and a slider, the screw rod is connected to the motor in a transmission manner, and the slider is sleeved on the periphery of the screw rod and is in threaded fit with the screw rod; the mounting table is fixedly connected with the sliding block, and the motor drives the mounting table to move up and down through the sliding block so as to adjust the coupling distance between the first magnet array and the second magnet array.

Optionally, the moving assembly further comprises a limiting structure, the limiting structure is columnar and has two end faces which are oppositely arranged, and the limiting structure is provided with an accommodating through hole which penetrates through the two end faces; the side wall of the limiting structure is provided with a connecting hole, and the mounting table penetrates through the connecting hole to be fixedly connected with the sliding block; the limiting structure is fixedly sleeved on the periphery of the screw rod, the sliding block is located in the accommodating through hole, and the limiting structure is used for limiting the sliding block to rotate and enabling the sliding block to move up and down in a preset range.

Optionally, the moving assembly further includes a support frame, the support frame includes an upper bearing plate and a support bar, the support bar is fixed on the detection base, the motor is fixed above the upper bearing plate, and the support bar is fixedly connected below the upper bearing plate and extends along the length direction of the screw rod; the support bar is provided with a second position detection module, the mounting table is provided with a second side plate, and the second position detection module detects the position of the second side plate to determine the position of the mounting table.

Optionally, the support frame still includes lower loading board, lower loading board fixed connection the support bar is kept away from the tip of last loading board, lower loading board orientation one side of last loading board is equipped with the bearing, the bearing is relative lower loading board is rotatable, the lead screw is kept away from the tip fixed connection of motor the bearing.

Optionally, the lower detection platform comprises a position adjusting platform and a bearing jig arranged above the position adjusting platform, the position adjusting platform is used for adjusting the position of the bearing jig, and the bearing jig is used for installing the second magnet array.

Optionally, the upper detection table includes a mounting table and a calibration structure connected to the mounting table, the force sensor is disposed on the mounting table, the mounting table is used for mounting the first magnet array, and the calibration structure is used for calibrating an initial distance between the first magnet array and the second magnet array; the first position detection module detects a spacing between the first magnet array and the second magnet array by detecting a position of the calibration structure.

The second aspect of the present invention also provides a dynamic magnetic coupling force testing system, including:

the dynamic magnetic coupling force testing device comprises a computing device and the dynamic magnetic coupling force testing device, wherein the computing device is connected with a motor, a force sensor, a first position detecting module and a second position detecting module of the dynamic magnetic coupling force testing device.

According to the configuration, when in test, the first magnet array is arranged on the upper detection table, the second magnet array is arranged on the lower detection table, and the driving module drives at least one of the upper detection table or the lower detection table to move. In the process of motion, the force sensor can detect the magnetic coupling force between first magnet array and the second magnet array, and first position detection module obtains the interval between first magnet array and the second magnet array, can the accurate interval and the magnetic coupling force of testing between two magnet arrays. When the drive of the drive module enables the distance between the upper detection platform and the lower detection platform to change, a plurality of different magnetic coupling forces can be obtained by the detection of the force sensor, the first position detection module can measure a plurality of different distances, the magnetic coupling forces correspond to the distances one to one, the functional relation between the distances and the magnetic coupling forces can be established according to the data, and the real-time dynamic adjustment of the magnetic coupling forces between the two magnet arrays is realized.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic structural diagram of a dynamic magnetic coupling force testing apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first position south-side module of a dynamic magnetic coupling force testing apparatus according to a first embodiment of the present invention;

fig. 3 is a rear view of a dynamic magnetic coupling force testing apparatus provided in the first embodiment of the present invention;

fig. 4 is a sectional view of a first position detecting module of the dynamic magnetic coupling force testing apparatus according to the first embodiment of the present invention;

fig. 5 is a cross-sectional view of another first position detecting module of the dynamic magnetic coupling force testing apparatus according to the first embodiment of the present invention;

fig. 6 is a sectional view of a moving assembly of a dynamic magnetic coupling force testing apparatus according to a first embodiment of the present invention;

FIG. 7 is an enlarged view of the area S1 in FIG. 1;

fig. 8 is a schematic structural diagram of another dynamic magnetic coupling force testing apparatus according to a second embodiment of the present invention;

fig. 9 is a schematic connection diagram of a dynamic magnetic coupling force testing system according to a third embodiment of the present invention;

fig. 10 is a schematic connection diagram of another dynamic magnetic coupling force testing system according to a third embodiment of the present invention.

The reference numbers in the figures are as follows:

100, detecting a base; 200 driving modules, 210 motors, 220 moving assemblies, 221 screw rods, 222 sliders, 223 limiting structures, 223a accommodating through holes, 224 supporting frames, 224a upper bearing plates, 224b supporting bars, 224c lower bearing plates and 225 second position detection modules; 300 a first position detection module, 310 detection structure, 311 mounting seat, 311a cavity, 312 a first optical sensor, 320 synchronization structure, 321 elastic element, 322 sliding rod; 400 a first force sensor; 500 a first upper inspection station, 510 a first mounting station, 520 a first side plate, 530 a second side plate; 600 a first lower detection table, 610 a position adjusting platform and 620 a bearing jig; 700 a second upper detection table, 710 a second mounting table, 720 a calibration structure, 800 a second force sensor; 900 a computing device; 1000 a first dynamic magnetic coupling force testing device; 2000 second dynamic magnetic coupling force testing device; 3000 dynamic magnetic coupling force test system.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

In the embodiments of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "opened," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

In the present invention, the "distance" between the two magnet arrays may be a distance between some points on the two magnet arrays, or a coupling distance (i.e., a coupling distance) of a magnetic coupling force between the two magnet arrays. In the following embodiments, a coupling pitch is described as an example.

The first embodiment of the present invention relates to a first dynamic magnetic coupling force testing apparatus 1000. As shown in fig. 1 and 3, the present invention includes: the detection device comprises a detection base 100, a driving module 200, a first position detection module 300, a first force sensor 400, a first upper detection table 500 and a first lower detection table 600, wherein the first upper detection table 500 is used for installing a first magnet array, and the first lower detection table 600 is arranged opposite to the first upper detection table 500 and is used for installing a second magnet array. Wherein the driving module 200, the first position detecting module 300, the first force sensor 400, the first upper detecting platform 500 and the first lower detecting platform 600 are connected to the detecting base 100. The driving module 200 is configured to drive at least one of the first upper detection stage 500 and the first lower detection stage 600 to move so as to change a distance between the first magnet array and the second magnet array mounted thereon, the first position detection module 300 is configured to detect a distance between the first magnet array and the second magnet array, and the first force sensor 400 is configured to detect a magnetic coupling force between the first magnet array and the second magnet array.

So configured, when testing, the first magnet array is mounted on the first upper detection table 500, the second magnet array is mounted on the first lower detection table 600, and the driving module 200 drives at least one of the first upper detection table 500 or the first lower detection table 600 to move. During the movement, the first force sensor 400 can detect the magnetic coupling force between the first magnet array and the second magnet array, and the first position detection module 300 can acquire the distance between the first magnet array and the second magnet array, so that the relationship between the distance between the two magnet arrays and the magnetic coupling force can be accurately tested. When the driving module 200 drives the first upper detection platform 500 and the first lower detection platform 600 to change the distance therebetween, the first force sensor 400 may detect a plurality of different magnetic coupling forces, and the first position detection module 300 may detect a plurality of different distances therebetween, where the magnetic coupling forces correspond to the distances one to one, and according to these data, a functional relationship between the distances and the magnetic coupling forces may be constructed, and real-time dynamic adjustment of the magnetic coupling forces between the two magnet arrays may be implemented as desired.

It is understood that the driving module 200 may be configured to drive the first upper detection stage 500 to move to change the spacing between the first magnet array and the second magnet array; alternatively, the driving module 200 may be configured to drive the first lower detection stage 600 to move to change the spacing between the first magnet array and the second magnet array; alternatively, the driving module 200 is configured to simultaneously drive the first upper detection stage 500 and the first lower detection stage 600 to move to change the interval between the first magnet array and the second magnet array. In the present embodiment, the driving module 200 drives the first upper detection stage 500 to move.

Alternatively, the specific type of the first force sensor 400 may be adjusted according to actual testing requirements, and embodiments of the present invention are not limited thereto.

Referring to fig. 2 and fig. 3 again, in the present embodiment, the first upper detection table 500 includes a first mounting table 510 and a first side plate 520 fixedly connected to the first mounting table 510. The first mounting stage 510 is in transmission connection with the driving module 200, the first mounting stage 510 is used for mounting the first magnet array, and the first detection module 300 detects the position of the first side plate 520 to detect the distance between the first magnet array and the second magnet array.

Referring to fig. 4, further, the first position detecting module 300 includes a detecting structure 310 and a synchronizing structure 320, the detecting structure 310 is fixed on the detecting base 100, and the synchronizing structure 320 is movably connected to the detecting structure 310. The synchronization structure 320 abuts against the first side plate 520, and the detection structure 310 detects the distance between the first magnet array and the second magnet array by detecting the position of the synchronization structure 320. Since the synchronization structure 320 is movably connected to the detection structure 310 and abuts against the first side plate 520, when the first side plate 520 moves, the synchronization structure 320 follows the first side plate 520 to move synchronously, and the detection structure 310 detects the position of the synchronization structure 320 to determine the distance between the first magnet array and the second magnet array.

Further, the detecting structure 310 includes a mounting seat 311 and a first optical sensor 312, and the synchronizing structure 320 includes an elastic member 321 and a sliding rod 322. The mounting base 311 is fixed to the detection base 100, the first optical sensor 312 and the elastic element 321 are both connected to the mounting base 311, the sliding rod 322 has two opposite ends, one end of the sliding rod 322 presses against the elastic element 321, and the other end of the sliding rod 322 presses against the first side plate 520. The first optical sensor 312 presses the end of the elastic member 321 via detecting the sliding rod 322 to detect the distance between the first magnet array and the second magnet array.

Specifically, the mounting seat 311 has a cavity 311a, the first optical sensor 312 and the elastic member 321 are located in the cavity 311a, and the sliding rod 322 is at least partially located in the cavity 311 a. The end of the sliding rod 322 close to the first optical sensor 312 abuts against the elastic element 321, and the end of the sliding rod 322 far from the first optical sensor 312 abuts against the first side plate 520. When the driving module 200 drives the first mounting platform 510 to move downward, the first side plate 520 follows the downward movement, and the sliding rod 322 is driven by the first side plate 520 to move downward and compress the elastic element 321; when the driving module 200 drives the first mounting platform 510 to move upward, the first side plate 520 moves upward, the elastic element 321 moves upward under the action of elastic potential energy generated by compression, and the sliding rod 322 moves upward under the driving of the elastic element 321 and abuts against the first side plate 520. During the up-and-down movement, the first optical sensor 312 detects the position change of the end of the sliding rod 322 far from the first side plate 520, so as to obtain the position change of the first side plate 520. Since the first side plate 520 is fixedly mounted on the first mounting stage 510, the position change of the first side plate 312 represents the position change of the first mounting stage 510, and the first magnet array is mounted on the first mounting stage 510, so that the position change of the first magnet array relative to the second magnet array, that is, the change of the coupling distance between the first magnet array and the second magnet array, can be reflected by the position change of the first mounting stage 510.

Alternatively, the first optical sensor 312 may be a laser sensor, an optical fiber sensor, or another type of optical sensor, as long as the position change of the sliding rod 322 can be accurately measured, and the embodiment of the present invention is not particularly limited thereto.

It can be understood that, when the elastic element 321 is elastically engaged with the first side plate 520 by itself to adjust the position of the sliding rod 322, it is necessary for the first optical sensor 312 to normally detect the end of the sliding rod 322, and therefore, the elastic element 321 is preferably a spring, and a through hole of the spring can meet the requirement that the first optical sensor 312 detects the end of the sliding rod 322. Of course, the elastic element may also be other elastic elements, as long as the detection function of the first optical sensor 312 can function normally and the position of the sliding rod 322 can be adjusted by cooperating with the first side plate 520, which is not described herein again.

Referring to fig. 5, in an alternative embodiment, the first optical sensor 312 is replaced by a distance sensor 313 directly contacting the sliding rod 322, and the distance sensor 313 directly detects the sliding distance of the sliding rod 322 when the sliding rod 322 moves, that is, the distance between the first magnet array and the second magnet array can be measured. The distance sensor 313 is directly contacted with the sliding rod for detection, so that the detection result can be more accurate. It is to be understood that when the distance sensor 313 directly contacting the slide bar 322 is used for detection, the position and manner of the specific arrangement of the distance sensor 313 may be appropriately adjusted according to actual conditions.

Referring to fig. 6, in the present embodiment, the driving module 200 includes a motor 210 and a moving component 220 in transmission connection with the motor 210, and the moving component 220 is fixed on the detection base 100. The first mounting table 510 is fixedly connected to the moving assembly 220, and the motor 210 drives the first mounting table 510 to move up and down via the moving assembly 220. Since the control accuracy of the servo motor is high, the motor 210 is preferably a servo motor as a driving mechanism, and the position change accuracy of the first mounting stage 510 can be improved. Of course, in other possible embodiments, the type of the motor may also be adjusted according to actual requirements, and will not be described herein again.

Further, the moving assembly 220 includes a screw rod 221 and a slider 222, the screw rod 221 is in transmission connection with the motor 210, and the slider 222 is sleeved on the periphery of the screw rod 221 and in threaded fit with the screw rod 221. The first mounting table 510 is fixedly connected to the slider 222, and the motor 210 drives the first mounting table 510 to move up and down via the slider 222 to adjust the coupling distance between the first magnet array and the second magnet array. The screw rod 221 is matched with the screw rod transmission structure of the slider 222, wherein the screw rod 221 is coaxially and fixedly connected with a rotating shaft of the motor 210 through a coupler, and the rotary motion of the screw rod 221 can be converted into the reciprocating motion of the slider 222 in the length direction of the screw rod 221 by a small structural size.

Furthermore, the movable assembly 220 further includes a limiting structure 223, the limiting structure 223 is cylindrical and has two end surfaces which are oppositely arranged, and the limiting structure 223 has an accommodating through hole 223a which penetrates through the two end surfaces. The side wall of the limiting structure 223 is provided with a connecting hole, and the first mounting table 510 passes through the connecting hole and is fixedly connected with the sliding block 222. The limiting structure 223 is fixedly sleeved on the periphery of the screw 221, the slider 222 is located in the accommodating through hole 223a, and the limiting structure 223 is used for limiting the slider 222 to rotate and enabling the slider 222 to move up and down in a preset range.

Specifically, the limiting structure 223 is a hollow column structure, which is a quadrangular prism in the present embodiment. The accommodating through hole 223a penetrates through two end faces of the quadrangular prism, the screw rod 221 penetrates through the accommodating through hole 223a, an accommodating space is further formed between the side wall of the part of the screw rod 221, which is positioned in the accommodating through hole 223a, and the side wall of the limiting structure 223, which surrounds the accommodating through hole 223a, and the slider 222 is positioned in the accommodating space. And the first mounting table 510 is fixedly connected to the sliding block 222 through a connecting member passing through the connecting hole of the limiting structure 223, and the connecting member is matched with the inner wall of the connecting hole to limit the sliding block 222 to rotate. Thus, when the screw 221 rotates, the slider 222 is restricted from rotating, and the slider 222 reciprocates in the longitudinal direction of the screw 221 by the screw of the screw 221. The size of the limiting structure 223 in the length direction of the lead screw 221 is larger than the size of the slider 222 in the length direction, so that the slider 222 can reciprocate in the accommodating space, and the two end portions of the limiting structure 223 can limit the slider 222 to move within a preset range, thereby avoiding that the movement amplitude of the slider 222 is too large, particularly avoiding that the distance of the slider 222 moving downwards is too large, and preventing the first magnet array from being attached to the second magnet array and even being damaged by mutual extrusion.

Referring to fig. 7, in the present embodiment, the moving assembly 220 further includes a supporting frame 224, the supporting frame 224 includes an upper bearing plate 224a and a supporting bar 224b, the motor 210 is fixed above the upper bearing plate 224a, and the supporting bar 224b is fixedly connected below the upper bearing plate 224a and extends along the length direction of the lead screw 221. The supporting bar 224b is provided with a second position detection module 225, the first mounting platform 510 is provided with a second side plate 530, and the second position detection module 225 detects the position of the second side plate 530 to determine the position of the first mounting platform 510.

Specifically, the second position detecting module 225 includes a plurality of second optical sensors, and the second optical sensors are spaced apart from each other. Preferably two, and are respectively disposed at upper and lower limit positions corresponding to the first mounting stage 510. At this time, two second optical sensors are disposed on the supporting bar 224b at an interval from top to bottom, when the first mounting stage 510 moves up and down, the second side plate 530 moves up and down by being driven by the first mounting stage 510, and when the second side plate 530 passes by any one of the second optical sensors, the second optical sensor can detect the second side plate 530, thereby determining the position of the first mounting stage 510. Whether the first mounting table 510 moves to the limit position or not is detected by the two second optical sensors, so that the situation that the motor 210 continues to drive the first mounting table 510 to move after the first mounting table 510 reaches the limit position can be avoided, and the first dynamic magnetic coupling force testing device 1000 is prevented from being damaged.

Alternatively, the second optical sensor may be a slot switch or other type of optical sensor as long as it can determine the position of the first mounting stage 510 by detecting the second side plate 530, which is not particularly limited in the embodiment of the present invention.

It is understood that, in the present embodiment, the upper limit position of the first mounting table 510 corresponds to a position when the slider 222 moves to the position where the upper end surface of the slider itself abuts against the inner wall of the upper end side wall of the limiting structure 223, and the lower limit position corresponds to a position when the slider 222 moves to the position where the lower end surface of the slider itself abuts against the inner wall of the lower end side wall of the limiting structure 223.

Referring to fig. 6 again, further, the supporting frame 224 further includes a lower bearing plate 224c, the lower bearing plate 224c is fixedly connected to an end portion of the supporting bar 224b far away from the upper bearing plate 224a, a bearing is disposed on a side of the lower bearing plate 224c facing the upper bearing plate 224a, the bearing is rotatable relative to the lower bearing plate 224c, and an end portion of the lead screw 221 far away from the motor 210 is fixedly connected to the bearing. That is, one end of the screw rod 221 is coaxially and fixedly connected with the rotating shaft of the motor 210, and the other end of the screw rod 221 is fixedly connected with the bearing on the lower bearing plate 224c, so that the screw rod 221 can be prevented from swinging in the rotating process, and the screw rod 221 is more stable in the rotating process.

In this embodiment, the first lower detection table 600 includes a position adjustment platform 610 and a carrying fixture 620 disposed above the position adjustment platform 610, the position adjustment platform 610 is used for adjusting the position of the carrying fixture 620, and the carrying fixture 620 is used for mounting the second magnet array.

Specifically, the position adjustment platform 610 is a high-precision plane displacement adjustment platform, and in this embodiment, the position adjustment of the second magnet array on the horizontal plane can be realized. Of course, the position adjustment platform 610 may also be a three-dimensional displacement adjustment platform, that is, besides the adjustment in the horizontal plane direction, the adjustment in the vertical direction may also be performed.

In addition, the support frame 224, the first mounting stage 510, the detection base 100, and the like may be made of a metal material such as stainless steel, aluminum alloy, and the like. In the present embodiment, the first magnet array may be directly mounted on the first mounting stage 510, or the first magnet array may be mounted on another fixed structure (such as a housing of a product) and then the fixed structure may be mounted on the first mounting stage 510; the second magnet array may be directly mounted on the carrying fixture 620, or the second magnet array may be mounted on other carrying structures (such as a housing of a product) and then the carrying structures are mounted on the carrying fixture 620.

The operation method of the first dynamic magnetic coupling force testing apparatus 1000 according to this embodiment is as follows:

the first magnet array is mounted on the first mounting stage 510, and the second magnet array is mounted on the carrying fixture 620. The motor 210 is started, the first mounting stage 510 is driven by the motor 210 to move to a preset position (preset coupling distance between the first magnet array and the second magnet array), and the first force sensor 400 is used to test and obtain the magnetic coupling force of the first magnet array and the second magnet array at the preset position, so as to obtain a first set of data of the magnetic coupling force and the coupling distance. Then, the motor 210 is started, the position of the first mounting stage 510 is adjusted according to the requirement, the coupling distance between the first magnet array and the second magnet array is further adjusted, meanwhile, the position variation of the first mounting stage 510 is measured through the cooperation of the first optical sensor 312, the sliding rod 322 and the first side plate 520 (a new coupling distance at a corresponding position can be obtained through calculation with a preset coupling distance), and then a new magnetic coupling force at a corresponding position is measured through the first force sensor 400. After multiple real-time adjustments and tests, multiple sets of data can be obtained for constructing a functional relationship between the magnetic coupling force and the coupling spacing between the two magnet arrays. And after the required coupling distance and the corresponding magnetic coupling force are obtained, locking and fixing the first magnet array and the second magnet array.

It should be noted that, in the above test, the first magnet array and the second magnet array do not contact each other, that is, the coupling distance between the two is greater than zero.

Referring to fig. 8, a second embodiment of the present invention relates to a second dynamic magnetic coupling force testing apparatus 2000. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in the first embodiment, the first position detecting module 300 is fixedly connected to the first side plate 520 of the first mounting stage 510 via detection to detect a coupling distance between the first magnet array and the second magnet array. In the second embodiment of the present invention, the second upper detection table 700 includes a second mounting table 710 and a calibration structure 720 connected to the second mounting table 710, the second force sensor 800 is disposed on the second mounting table 710, the second mounting table 710 is used for mounting the first magnet array, and the calibration structure 720 is used for calibrating the initial coupling distance between the first magnet array and the second magnet array. A third position detection module (not shown) detects the coupling distance between the first magnet array and the second magnet array by detecting the position of the calibration structure 720.

Specifically, the calibration structure 720 is movably disposed on the second mounting stage 710. During testing, the calibration structure 720 is used to calibrate an initial distance (i.e., an initial coupling distance) between the first magnet array and the second magnet array, when the position of the second mounting stage 710 is adjusted, the calibration structure 720 moves, and the third position detection module (not shown in the figure) detects a movement amount of the calibration structure 720 and calculates the movement amount and the initial coupling distance to obtain a new coupling distance. The calibration structure 720 is used to calibrate the initial coupling spacing with greater accuracy.

It will be appreciated that the indexing structure 720 indexes the initial coupling spacing by contacting the second magnet array or other predetermined location. The initial coupling distance calibrated by the calibration structure 720 can be adjusted according to actual requirements, and the specific type of the second force sensor 800 is also selectable, and the embodiment of the present invention is not specifically limited to this.

Referring to fig. 9, a third embodiment of the present invention relates to a dynamic magnetic coupling force testing system 3000, including: a computing device 900 and the first dynamic magnetic coupling force testing device 1000 as described above in the first embodiment, the computing device 900 being connected to the motor 210, the first force sensor 400, the first position detecting module 300, and the second position detecting module 225 of the first dynamic magnetic coupling force testing device 1000.

In this embodiment, the computing device 900 is configured to control the start/stop, the rotation speed, the rotation direction, and the like of the motor 210, and is further configured to receive and display data measured by the first force sensor 400, the first position detection module 300, and the second position detection module 225, and calculate the data to obtain a functional relationship between the magnetic coupling force and the coupling distance between the two magnet arrays.

Referring to fig. 10, it is understood that the dynamic magnetic coupling force testing system 3000 may also include the computing device 900 and the second dynamic magnetic coupling force testing device 2000 as described in the second embodiment, and the setting manner and the advantageous effects thereof are the same as those of the first dynamic magnetic coupling force testing device 1000 provided by the first embodiment, and are not repeated herein.

The above is to the dynamic magnetic coupling force testing device and system that the embodiment of the present invention provided introduces in detail, and it is right to have used specific individual example herein the principle and the embodiment of the present invention to explain, and the explanation of the above embodiment is only used for helping to understand the utility model discloses an idea all has the change part on specific embodiment and application scope, to sum up, the content of this specification should not be understood as the restriction of the present invention.

Claims (12)

1. A dynamic magnetic coupling force testing device, comprising:

detecting a base;

a drive module;

a first position detection module;

a force sensor;

the upper detection table is used for mounting the first magnet array; and

the lower detection table is arranged opposite to the upper detection table and used for mounting a second magnet array; wherein the content of the first and second substances,

the driving module, the first position detection module, the force sensor, the upper detection table and the lower detection table are connected with the detection base;

the driving module is used for driving at least one of the upper detection table and the lower detection table to move so as to change the distance between the first magnet array and the second magnet array which are installed on the driving module, the first position detection module is used for detecting the distance between the first magnet array and the second magnet array, and the force sensor is used for detecting the magnetic coupling force between the first magnet array and the second magnet array.

2. The dynamic magnetic coupling force testing device of claim 1, wherein the upper detection stage comprises a mounting stage and a first side plate connected to the mounting stage;

the mounting table is in transmission connection with the driving module and used for mounting the first magnet array, and the first position detection module detects the distance between the first magnet array and the second magnet array by detecting the position of the first side plate.

3. The dynamic magnetic coupling force testing device of claim 2, wherein the first position detecting module comprises a detecting structure and a synchronizing structure, the detecting structure is fixed on the detecting base, and the synchronizing structure is movably connected to the detecting structure;

the synchronization structure abuts against the first side plate, and the detection structure detects the distance between the first magnet array and the second magnet array by detecting the position of the synchronization structure.

4. The dynamic magnetic coupling force testing device of claim 3, wherein the detection structure comprises a mounting seat and an optical sensor, and the synchronization structure comprises an elastic member and a sliding rod; the mounting seat is fixed on the detection base, the optical sensor and the elastic piece are both fixed on the mounting seat, the sliding rod is provided with two opposite ends, one end of the sliding rod abuts against the elastic piece, and the other end of the sliding rod abuts against the first side plate;

the optical sensor detects the distance between the first magnet array and the second magnet array by detecting that the sliding rod presses against the end of the elastic piece.

5. The dynamic magnetic coupling force testing device of any one of claims 2 to 4, wherein the driving module comprises a motor and a moving component in transmission connection with the motor, and the moving component is fixed on the detection base;

the mounting table is fixedly connected to the moving assembly, and the motor drives the mounting table to move up and down through the moving assembly.

6. The dynamic magnetic coupling force testing device of claim 5, wherein the moving assembly comprises a screw and a slider, the screw is in transmission connection with the motor, and the slider is sleeved on the periphery of the screw and in threaded fit with the screw;

the mounting table is fixedly connected with the sliding block, and the motor drives the mounting table to move up and down through the sliding block so as to adjust the coupling distance between the first magnet array and the second magnet array.

7. The dynamic magnetic coupling force testing device of claim 6, wherein the moving assembly further comprises a limiting structure, the limiting structure is cylindrical and has two end faces oppositely arranged, and the limiting structure has an accommodating through hole penetrating through the two end faces; the side wall of the limiting structure is provided with a connecting hole, and the mounting table penetrates through the connecting hole to be fixedly connected with the sliding block;

the limiting structure is fixedly sleeved on the periphery of the screw rod, the sliding block is located in the accommodating through hole, and the limiting structure is used for limiting the rotation of the sliding block and enabling the sliding block to move up and down within a preset range.

8. The dynamic magnetic coupling force testing device of claim 7, wherein the moving assembly further comprises a supporting frame, the supporting frame comprises an upper bearing plate and a supporting bar, the supporting bar is fixed on the detection base, the motor is fixed above the upper bearing plate, and the supporting bar is fixedly connected below the upper bearing plate and extends along the length direction of the lead screw;

the support bar is provided with a second position detection module, the mounting table is provided with a second side plate, and the second position detection module detects the position of the second side plate to detect the position of the mounting table.

9. The dynamic magnetic coupling force testing device of claim 8, wherein the supporting frame further comprises a lower bearing plate, the lower bearing plate is fixedly connected to the end portion of the supporting bar far away from the upper bearing plate, a bearing is arranged on one side of the lower bearing plate facing the upper bearing plate, the bearing is rotatable relative to the lower bearing plate, and the end portion of the lead screw far away from the motor is fixedly connected to the bearing.

10. The dynamic magnetic coupling force testing device of any one of claims 6 to 9, wherein the lower testing platform comprises a position adjusting platform and a carrying fixture disposed above the position adjusting platform, the position adjusting platform is used for adjusting the position of the carrying fixture, and the carrying fixture is used for mounting the second magnet array.

11. The dynamic magnetic coupling force testing device of claim 1, wherein the upper detection platform comprises a mounting platform and a calibration structure connected to the mounting platform, the force sensor is disposed on the mounting platform, the mounting platform is used for mounting the first magnet array, and the calibration structure is used for calibrating an initial distance between the first magnet array and the second magnet array;

the first position detection module detects a spacing between the first magnet array and the second magnet array by detecting a position of the calibration structure.

12. A dynamic magnetic coupling force testing system, comprising a computing device and the dynamic magnetic coupling force testing device as claimed in any one of claims 1 to 11, wherein the computing device is connected with the motor, the force sensor, the first position detecting module and the second position detecting module of the dynamic magnetic coupling force testing device.

Images