CN116256677A

CN116256677A - Test device

Info

Publication number: CN116256677A
Application number: CN202111504563.0A
Authority: CN
Inventors: 李昊承; 郭世东; 赵成刚; 谢利姣; 陈涛
Original assignee: Shenzhen Futaihong Precision Industry Co Ltd
Current assignee: Shenzhen Futaihong Precision Industry Co Ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-06-13

Abstract

The application proposes a testing arrangement, including: the bearing assembly is used for accommodating and fixing the product to be tested. The test assembly is used for testing a first magnetic component on a product to be tested, the test assembly comprises a distance sensor, a first test device and a second magnetic component connected with the first test device, the second magnetic component is arranged relative to the first magnetic component, and the first test device is used for testing magnetic force between the first magnetic component and the second magnetic component. The distance sensor is used for detecting the distance between the testing device and the product to be tested and outputting a detection signal; the moving component is used for receiving the detection signal and driving the testing component to move to a preset distance along the direction close to the bearing component according to the detection signal. According to the magnetic component testing device, the magnetic component on the product to be tested is automatically tested through the cooperation of the bearing component, the testing component and the moving component, and the attraction force between the attracting magnets can be guaranteed under the preset testing distance through the cooperation of the distance sensor, so that the testing precision is guaranteed, and the testing efficiency is improved.

Description

Test device

Technical Field

The application relates to the field of testing, in particular to a testing device.

Background

Before products such as notebooks leave the factory, in order to ensure that the magnetic force of the magnet on the notebooks reaches standard production requirements, magnetic force test is usually carried out on the magnet on the notebooks. At present, the magnet in the notebook is subjected to magnetic force test, mainly by adopting a manual test mode, the manual test is time-consuming and labor-consuming, and the efficiency is low.

Disclosure of Invention

In view of the foregoing, it is necessary to provide a testing device for automatically testing magnetic components on a product to be tested, and for ensuring the attraction force between the attracting magnets at a predetermined testing distance, ensuring the testing accuracy and improving the testing efficiency.

A first aspect provides a testing device, the testing device comprising: the bearing assembly is used for accommodating and fixing the product to be tested. The testing assembly is used for testing a first magnetic component on a product to be tested, and comprises a distance sensor, a first testing device and a second magnetic component connected with the first testing device, wherein the second magnetic component is arranged relative to the first magnetic component, and the first testing device is used for testing magnetic force between the first magnetic component and the second magnetic component. The distance sensor is used for detecting the distance between the testing device and the product to be tested and outputting a detection signal; the moving assembly is connected with the testing assembly and is used for receiving the detection signal and driving the testing assembly to move to a preset distance along the direction close to the bearing assembly according to the detection signal.

In some embodiments, the test assembly further comprises: the test board is connected with the moving assembly; the first test device comprises a first end, a second end and a mounting block, wherein the first end is connected with the test board, the second end is provided with the mounting block, and the mounting block is used for accommodating the second magnetic component.

In some embodiments, the test assembly further comprises: the first end of the adjusting mechanism is connected with the first end of the first testing device, the second end of the adjusting mechanism is connected with the testing board, and the height of the adjusting mechanism is adjustable.

In some embodiments, the test assembly further comprises: a second test device for testing the polarity of the third magnetic component on the product under test; the mounting piece is used for fixing the second testing device, the mounting piece is connected with the testing board, and the height of the second testing device is adjustable.

In some embodiments, the test assembly further comprises: the pressing piece is arranged on the test board and used for pressing the product to be tested on the bearing assembly when the test assembly moves to a preset distance along the direction close to the bearing assembly.

In some embodiments, the mobile assembly includes a floating mechanism coupled to the test plate; the driving mechanism is connected with the floating mechanism and used for driving the floating mechanism to move.

In some embodiments, the float mechanism comprises: the mounting plate is connected with the test plate; the first end of the guide rail and the bearing assembly are placed on the same plane, and the second end of the guide rail is connected with the mounting plate; and the connecting part is connected between the driving mechanism and the mounting plate.

In some embodiments, the test plate includes a plurality of first connection holes thereon, and the mounting plate includes a plurality of second connection holes thereon, the first connection holes communicating with the second connection holes.

In some embodiments, the carrier assembly comprises: the fixing mechanism comprises a first surface, and a product to be tested is attached to the first surface; the positioning column is arranged on the first surface; the first sensor is arranged on the first surface and used for sensing the product to be tested when the product to be tested is attached to the first surface.

In some embodiments, the number of first test devices includes a plurality.

Compared with the prior art, the application has at least the following beneficial effects: through the cooperation of bearing assembly, test assembly and removal subassembly, with the magnet of presetting on the apron accurate preset breach on the alignment product and place, realize the automatic test and await measuring the magnetic part on the product, and through the cooperation of distance sensor, can guarantee the suction between the actuation magnet under the test distance of predetermineeing, guarantee the test accuracy, improve efficiency of software testing.

Drawings

Fig. 1 is a schematic diagram of a rack structure of a testing device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of another testing device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a load bearing assembly according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a test assembly according to an embodiment of the present application.

Fig. 5 is a schematic diagram of a connection structure of a first test device according to an embodiment of the present application.

Fig. 6 is a schematic diagram of an operating state of a testing device according to an embodiment of the present application.

Fig. 7 is a schematic diagram illustrating another working state of a testing device according to an embodiment of the present application.

Description of the main reference signs

Test device 100

Frame 10

Platen 11

Display screen 12

Load bearing assembly 20

Test assembly 30

Moving assembly 40

Product 50 to be tested

Fixing mechanism 21

Positioning column 22

First sensor 23

Body portion 211

Suction cup 212

First surface 213

Receiving hole 214

First through hole 215

First magnetic part 51

Test board 31

First test device 32

Adjustment mechanism 33

Second test device 34

Mounting member 35

Pressing piece 36

Distance sensor 37

Second magnetic part 38

Mounting block 321

Mounting groove 322

Cushion block 331

Bolt 332

Second through hole 333

Screw groove 311

Third magnetic part 341

Floating mechanism 41

Drive mechanism 42

Mounting plate 411

Guide rail 412

Connecting member 413

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

In some possible scenarios, the edges of the upper and lower shells of the product to be tested (such as a notebook computer) are provided with attracting magnets, and the attracting magnets of the upper and lower shells are in one-to-one correspondence, and when testing the magnetic force (attraction force) between the attracting magnets on the upper and lower shells, the attraction force between the attracting magnets is required to be tested at a preset test distance so as to ensure that the attracting magnets are not reversely assembled and are not abnormal. However, the distance during the manual test of the magnetic force of the magnet cannot be effectively ensured to be a preset test distance, the test precision is affected, and the manual test is time-consuming and labor-consuming and has low efficiency.

To this end, the present application provides a testing device that can test a magnetic force between a first magnetic component and a second magnetic component on a product under test at a preset test distance. The product to be tested can be electronic equipment such as a notebook computer, a tablet, a mobile phone and the like, and the embodiment of the application is not particularly limited.

Referring to fig. 1 to 2, the present application provides a testing apparatus 100, where the testing apparatus 100 at least includes a rack 10, a carrying assembly 20, a testing assembly 30 and a moving assembly 40, which are accommodated in the rack 10.

The housing 10 includes at least a platen 11 and a display screen 12. The platen 11 is used to carry the moving assembly 40 and the carrying assembly 20. The display screen 12 may be used to display data, such as magnetic force magnitude and polarity, for testing the magnetic components of the product 50 to be tested that have magnetism by the testing assembly 30.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a carrier assembly according to an embodiment of the present application. The carrying assembly 20 is used for accommodating and fixing a product 50 to be tested.

As shown in fig. 3, the carrier assembly 20 includes a fixing mechanism 21, a positioning post 22, and a first sensor 23. Referring also to fig. 2, the fixing mechanism 21 is disposed on the platen 11. The fixing mechanism 21 includes a main body portion 211 and N suction cups 212 (e.g., vacuum suction cups 212), N being an integer greater than or equal to 1. An air chamber (not shown) is formed in the main body 211, and the suction cup 212 is mounted on the main body 211 and communicates with the air chamber. The main body 211 includes a first surface 213 (i.e., an upper surface), and the product 50 to be tested can be attached to the first surface 213. The first surface 213 is provided with N receiving holes 214, and the N suction cups 212 are received in the receiving holes 214. The positioning post 22 is disposed on the first surface 213, e.g., the positioning post 22 is inserted into the first surface 213. The number and location of the positioning posts 22 may be determined according to the particular product 50 to be tested, and is not particularly limited in this application. The first sensor 23 is disposed on the first surface 213, for example, a first through hole 215 is formed in the first surface 213, the first sensor 23 is accommodated in the first through hole 215, so that when the product 50 to be measured is attached to the first surface 213, the first sensor 23 can sense the product 50 to be measured, and the first sensor 23 outputs a sensing signal for sensing the product in place. As shown in fig. 2, a controller (not shown) in the driving mechanism 42 receives the sensing signal, determines that the product to be tested is in place, and then starts the motion to drive the floating mechanism 41 to move, so as to prevent the product to be tested 50 from being put in place, and the floating mechanism 41 is pressed down to damage the product to be tested 50 or the testing assembly 30. The first sensor 23 may be, for example, a photoelectric sensor, a proximity sensor, or the like.

In some embodiments, the carrier assembly 20 may further include a pneumatic assembly (not shown) in communication with the air chamber, and the actuating assembly is configured to draw the suction cup 212 to generate a negative air pressure therein, thereby firmly holding the product 50 to be tested.

As shown in fig. 4, the test assembly 30 includes at least a test board 31, a first test device 32, an adjustment mechanism 33, a second test device 34, a mount 35, a pressing member 36, a distance sensor 37, and a second magnetic member 38 connected to the first test device 32. The first test device 32, the adjustment mechanism 33, the second test device 34, the mount 35, the pressing member 36, and the distance sensor 37 are all provided on the test board 31. Referring to fig. 2, the test board 31 is connected to the moving assembly 40.

Fig. 5 is a schematic diagram of a connection structure of a first test device according to an embodiment of the present application. The test assembly 30 is used to test the first magnetic component 51 on the product 50 under test.

As shown in fig. 5, the first test device 32 is used to test the magnetic force between the first magnetic member 51 and the second magnetic member 38. A first end of the first test device 32 is connected to the test board 31, e.g. the first end of the first test device 32 is connected to a first end of the adjustment mechanism 33, and the first test device 32 is connected to the test board 31 via the adjustment mechanism 33. A second end of the first test device 32 is provided with a mounting block 321, e.g. the second end of the first test device 32 is connected to the mounting block 321. The mounting block 321 accommodates the second magnetic member 38, and the second magnetic member 38 is disposed opposite to the first magnetic member 51. The mounting block 321 is provided with a mounting groove 322 in which the user can place the second magnetic member 38.

The first test device 32 may be, for example, a pressure sensor or the like. When the first magnetic member 51 and the second magnetic member 38 are close to each other, the first magnetic member 51 and the second magnetic member 38 interact with each other, the first magnetic member 51 receives the force of the second magnetic member 38, the second magnetic member 38 receives the force of the first magnetic member 51, and the pressure sensor connected to the first magnetic member 51 can sense the force of the second magnetic member 38. The pressure sensor can measure force in two directions, namely can test suction force, can test repulsive force, and can display positive and negative values. For example, when the interaction between the first magnetic member 51 and the second magnetic member 38 is attraction force, that is, the magnetic force between the first magnetic member 51 and the second magnetic member 38 is attraction force, the pressure sensor shows a positive value. The interaction between the first magnetic part 51 and the second magnetic part 38 is a repulsive force, i.e. the magnetic force between the first magnetic part 51 and the second magnetic part 38 is a repulsive force, the pressure sensor is shown as a negative value.

The second end of the adjusting mechanism 33 is connected with the test board 31, and the height of the adjusting mechanism 33 is adjustable. As shown in fig. 5, the adjusting mechanism 33 may include a spacer 331 and a bolt 332, the spacer 331 is provided with a second through hole 333, the test board 31 is provided with a screw groove 311, and the bolt 332 passes through the second through hole 333 and is screwed with the screw groove 311. Referring to fig. 5, the adjusting mechanism 33 can adjust the height of the pad 331 by adjusting the depth of the bolt 332 entering the threaded groove 311, and thus the height of the adjusting mechanism 33 can be adjusted. By adjusting the height of the adjustment mechanism 33, the second magnetic member 38 can be moved upward or downward, and thus the distance H between the first magnetic member 51 and the second magnetic member 38 can be adjusted.

It will be appreciated that the smaller the depth of the bolt 332 into the threaded slot 311, the closer the spacer 331 is to the carrier assembly 20, i.e., the first magnetic member 51 is to the second magnetic member 38, and the smaller the distance H between the first magnetic member 51 and the second magnetic member 38. The greater the depth of the bolt 332 into the threaded slot 311, the further the spacer 331 is from the carrier assembly 20, i.e., the first magnetic member 51 is from the second magnetic member 38, and the greater the distance H between the first magnetic member 51 and the second magnetic member 38.

It is understood that the first magnetic member 51 and the second magnetic member 38 may be magnets, such as square magnets, bar magnets, cylindrical magnets, etc., or samarium cobalt magnets, neodymium iron boron magnets (strong magnets), ferrite magnets, alnico magnets, etc., or permanent magnets, soft magnets, etc.

In some embodiments, both the first magnetic component 51 and the second magnetic component 38 may be components on the product 50 to be tested. Illustratively, when the magnetic force of the attracting magnets of the upper and lower shell members of the notebook computer is tested, the attracting magnets of the upper and lower shell members are respectively tested. When the attracting magnet a in the area A of the upper shell is tested, the attracting magnet B in the area B of the lower shell is taken down, and the attracting magnet B is placed in the mounting groove 322. When the upper shell and the lower shell of the notebook computer are combined together, the area A is opposite to the area B. The upper housing member is placed on the carrier assembly 20 and the actuating magnets a in the area of the upper housing member a are secured against the actuating magnets b in the mounting slots 322. Accordingly, when the attracting magnet B in the area B of the lower case is tested, the attracting magnet a in the area a of the upper case is removed and placed in the mounting groove 322.

In some embodiments, the first magnetic component 51 is a component on the product 50 to be tested and the second magnetic component 38 is a component for testing the first magnetic component 51. Illustratively, in testing the magnetic force of the magnet C on the flat plate, the magnet D for testing the magnet C on the flat plate is placed in the mounting groove 322.

In some embodiments, a plurality of screw grooves 311 may be provided on the test plate 31, and thus the position of the second magnetic member 38 may be changed by adjusting the screw grooves 311 of the adjustment mechanism 33 mounted on the test plate 31. Therefore, after the product 50 to be tested is adsorbed on the first surface 213, the position of the first magnetic component 51 can be adjusted according to the position of the first magnetic component 51 on the product 50 to be tested, so that the second magnetic component is arranged relative to the first magnetic component 51 of the product 50 to be tested. If there are a plurality of first magnetic members 51 on the product 50 to be tested, a plurality of first magnetic force test devices may be provided, i.e. a corresponding plurality of second magnetic members 38 may be provided with respect to the plurality of first magnetic members 51.

Referring to fig. 2, the second testing device 34 is used for testing the polarity of the third magnetic component 341 on the product 50 to be tested. The second test device 34 is disposed opposite the third magnetic member 341. The mounting member 35 is used for fixing the second test device 34, and the mounting member 35 is connected to the test board 31.

In some embodiments, the height of the second test device 34 may be adjusted by the mount 35, and the second test device 34 may be moved upward or downward, thereby adjusting the distance between the second test device 34 and the third magnetic member 341.

It is to be understood that the first magnetic member 51, the second magnetic member 38, and the third magnetic member 341 are not particularly limited. That is, the first test device 32 can test the magnetic force of the second magnetic member 38, the third magnetic member 341, and the second test device 34 can test the polarity of the first magnetic member 51, the second magnetic member 38.

In some embodiments, the third magnetic component 341 may be a hall magnet or the like. The second test device 34 may be a hall effect gaussmeter or the like. Compared with the magnetic flux of the magnet which is required to be small when the polarity pen is used for testing the polarity of the magnet, the Hall magnetic flux is small, and the polarity pen cannot meet the requirement. The hall effect gauss meter may test the magnetic flux, and the hall effect gauss meter is fixed on the mounting member 35, and the hall effect gauss meter may be independently adjusted up and down. When the test magnetic flux value is positive, indicating that the polarity is N; when the test flux value is negative, the polarity is indicated as S.

The pressing piece 36 is used for pressing the product 50 to be tested on the carrying assembly 20 when the testing assembly 30 moves to a preset distance along the direction approaching the carrying assembly 20, i.e. the distance H between the first magnetic component 51 and the second magnetic component 38 is a preset testing distance. The pressing members 36 will reduce to some extent the difference in distance between the surface of the various areas of the product 50 to be tested to the test assembly 30 or the difference in distance between the surface of the different products 50 to be tested to the test assembly 30. Can play a role in shaping the product 50 to be tested, and prevent the deformation of the product 50 to be tested from causing the distance difference.

The distance sensor 37 is used for detecting the distance between the testing device 100 and the product 50 to be tested and outputting a detection signal. The distance sensor 37 is used for feeding back the distance from the surface of the product 50 to be tested, so that when the difference of the sizes of the product 50 to be tested causes the testing magnetic force, the distance between the first magnetic part 51 and the second magnetic part 38 is large, and therefore, when the magnetic force between the first magnetic part 51 and the second magnetic part 38 is tested, the distance between the first magnetic part 51 and the second magnetic part 38 can be effectively controlled. The distance sensor 37 may be, for example, an optical distance sensor 37, an infrared distance sensor 37, an ultrasonic distance sensor 37, or the like.

As shown in fig. 2, the moving assembly 40 is connected to the testing assembly 30, and the moving assembly 40 is configured to receive the detection signal and drive the testing assembly 30 to move to a predetermined distance along a direction approaching the carrying assembly 20 according to the detection signal.

The moving assembly 40 includes a floating mechanism 41 and a driving mechanism 42. The driving mechanism 42 is connected to the floating mechanism 41, and is used for driving the floating mechanism 41 to move. The driving mechanism 42 may include a servo motor (not shown) and a controller, and the controller may be used to control the start and stop of the servo motor, so as to control the driving mechanism 42 to drive the floating mechanism 41 to move.

The floating mechanism 41 includes a mounting plate 411, a guide rail 412, and a connecting member 413. The floating mechanism 41 is connected to the test plate 31, i.e. the mounting plate 411 is connected to the test plate 31. The first end of the rail 412 is positioned in the same plane as the carrier assembly 20, i.e., the first end of the rail 412 is positioned on the platen 11 and the second end of the rail 412 is connected to the mounting plate 411. A connection member 413, the connection member 413 being connected between the driving mechanism 42 and the mounting plate 411.

The operation of the test device 100 is briefly described below.

Illustratively, the predetermined test distance between the first magnetic member 51 and the second magnetic member 38 is 2 millimeters when the attraction force between the first magnetic member 51 and the second magnetic member 38 is required to be tested.

The product 50 to be tested is placed on the bearing assembly 20, the testing device 100 is started to work, the controller controls the servo motor to work, and the servo motor drives the floating mechanism 41 to move downwards. The floating mechanism 41 drives the test assembly 30 to move downward to the position a. The distance between the first magnetic member 51 and the second magnetic member 38 when the test assembly 30 is in the position a is about to be about 2 mm, for example, 2.5 mm or 3 mm, which is not particularly limited. The user adjusts the adjustment mechanism 33 on the first test device 32 such that the distance H between the first magnetic part 51 and the second magnetic part 38 is 2 mm. The feedback value (e.g., 5 mm) on the distance sensor 37 when the test assembly 30 is in position a is then set to a preset distance, i.e., 5 mm from the distance sensor 37 to the surface of the product 50 to be tested. The position a is not particularly limited, and when the test assembly 30 needs to be ensured to be at the position a, the adjusting mechanism 33 on the first test device 32 may be adjusted so that the distance H between the first magnetic component 51 and the second magnetic component 38 is 2 mm. The pressing member 36 may also be adjusted so that the pressing member 36 presses the product 50 to be tested when the testing assembly 30 is in the position a.

As shown in fig. 6, the product 50 to be tested is placed on the carrying assembly 20, the testing device 100 is started to operate, the controller controls the servo motor to operate, and the servo motor drives the floating mechanism 41 to move downwards. In the process of moving the floating mechanism 41 downwards, the test assembly 30 also moves downwards along with the floating mechanism 41, the distance sensor 37 continuously transmits a detection signal detected by the distance sensor, namely, continuously transmits the distance between the distance sensor and the surface of the product 50 to be tested to the controller, and when the distance between the distance sensor 37 and the surface of the product 50 to be tested reaches a preset distance, the controller controls the servo motor to stop working. At this time, as shown in fig. 7, the distance between the first magnetic member 51 and the second magnetic member 38 is a preset test distance of 2 mm. The pressing member 36 presses the product 50 to be measured. The distance between the first magnetic component 51 and the second magnetic component 38 reaches the preset test distance of 2 mm, the first test device 32 performs a test, the test value is a positive value and the value is in a specified range, and the first magnetic component is good; the test value is negative or the test value is not in the specified range, and the first magnetic component is defective.

In some embodiments, where a plurality of first magnetic components 51 are present and the testing of the plurality of first magnetic components 51 is different, the plurality of first magnetic components 51 may be tested based on different requirements. Illustratively, the attraction force of the magnet a above the display screen of the product 50 to be tested is required to be 2.5 mm, and the attraction force between the magnets is required to be 67.+ -. 5gf. The test product 50 requires a distance of 2.25 mm between magnets, and a suction force of 35 + -5 gf between magnets. The float mechanism 41 can be controlled downwards such that the distance H between the first magnetic part 51 and the second magnetic part 38 is about to approach 2 mm, e.g. it can be 2.1 mm etc. when the test assembly 30 is moved to position B and the test assembly 30 is in position B. The user adjusts the adjustment mechanism B for the first test device a to which the test magnet a corresponds such that the distance between the magnet a and the second magnetic part C in the corresponding first test device a is 2.5 mm. The user adjusts the adjustment mechanism E of the first test device D corresponding to the test magnet b such that the distance between the magnet b and the second magnetic member E in the corresponding first test device D is 2.25 mm.

In the embodiment of the present application, when testing the attraction force of the first magnetic component 51 of the product 50 to be tested, the distance between the first magnetic component 51 and the second magnetic component 38 is required to be within the preset test distance range, but due to the size difference between the products, the deformation of the products is considered. In order to ensure that the preset test distance is reached as much as possible, firstly, ensuring the stability and flatness of the product during test, adding a vacuum chuck 212 in the profiling positioning jig, and ensuring that the product is tightly attached to the jig and does not shake; second, the addition of the push member 36 provides a slight orthopedic effect to minimize product variability. Considering that there is a difference in product thickness, the fixed pressing position will cause a difference in distance between the first magnetic component 51 and the second magnetic component 38, and a reference plane needs to be found on the product 50 to be tested, in the design, the exposed plane nearest to the first magnetic component 51 can be used as a reference, and the distance sensor 37 is matched, so that the distance between the exposed plane nearest to the first magnetic component 51 and the distance sensor 37 is detected, real-time detection of the distance is realized, the distance between the first magnetic component 51 and the second magnetic component 38 is ensured to reach a preset test distance, and the magnetic force between the first magnetic component 51 and the second magnetic component 38 is tested under the preset test distance. Further, the driving mechanism 42 is adopted to drive the pressure sensor and the gauss meter to press down for testing the product 50 to be tested, so that the magnetic force and the polarity can be tested simultaneously.

Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present application and not for limiting, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A test device, comprising:

the bearing assembly is used for accommodating and fixing a product to be tested;

the testing assembly is used for testing a first magnetic component on the product to be tested, and comprises a distance sensor, a first testing device and a second magnetic component connected with the first testing device, wherein the second magnetic component is arranged relative to the first magnetic component, and the first testing device is used for testing magnetic force between the first magnetic component and the second magnetic component; the distance sensor is used for detecting the distance between the testing device and the product to be tested and outputting a detection signal;

the moving assembly is connected with the testing assembly and is used for receiving the detection signal and driving the testing assembly to move to a preset distance along the direction close to the bearing assembly according to the detection signal.

2. The test apparatus of claim 1, wherein the test assembly further comprises:

the test board is connected with the moving assembly;

the first test device comprises a first end, a second end and a mounting block, wherein the first end is connected with the test board, the second end is provided with the mounting block, and the mounting block is used for accommodating the second magnetic component.

3. The test apparatus of claim 1, wherein the test assembly further comprises:

the first end of the adjusting mechanism is connected with the first end of the first testing device, and the height of the adjusting mechanism is adjustable.

4. The test apparatus of claim 1, wherein the test assembly further comprises:

a second test device for testing the polarity of a third magnetic component on the product under test;

the mounting piece is used for fixing the second testing device, and the height of the second testing device is adjustable.

5. The test device of any one of claims 2-4, wherein the test assembly further comprises:

the pressing piece is arranged on the test board and used for pressing the product to be tested on the bearing assembly when the test assembly moves to a preset distance along the direction close to the bearing assembly.

6. The test device of any one of claims 2-4, wherein the moving assembly comprises:

the floating mechanism is connected with the test board;

the driving mechanism is connected with the floating mechanism and used for driving the floating mechanism to move.

7. The test apparatus of claim 6, wherein the float mechanism comprises:

the mounting plate is connected with the test plate;

the first end of the guide rail and the bearing assembly are placed on the same plane, and the second end of the guide rail is connected with the mounting plate;

and the connecting part is connected between the driving mechanism and the mounting plate.

8. The test device of claim 7, wherein the test plate includes a plurality of first attachment holes and the mounting plate includes a plurality of second attachment holes, the first attachment holes communicating with the second attachment holes.

9. The test apparatus of claim 1, wherein the carrier assembly comprises:

the fixing mechanism comprises a first surface, and the product to be tested is attached to the first surface;

the positioning column is arranged on the first surface;

the first sensor is arranged on the first surface and is used for sensing the product to be tested when the product to be tested is attached to the first surface.

10. The test apparatus of any one of claims 1-4, wherein the number of first test devices comprises a plurality.