Magnetic sheet magnetic pulling force test equipment

Abstract

The utility model discloses magnetic sheet magnetic pulling force testing equipment, which comprises a detection platform (2) used for placing a magnetic sheet (1) to be detected and a detector (3) used for testing magnetic pulling force, and the detector (3) is movably connected above the detection platform (2) along the vertical direction. One end of the detector (3), which is close to the detection platform (2), is fixedly connected with an opponent magnetic part (4) which attracts a magnetic sheet (1) to be detected, the magnetic sheet (1) to be detected is fixedly connected onto the detection platform (2), when the detector (3) is far away from the detection platform (2), the magnetic sheet (1) to be detected is in a static state, and an isolation plate (5.1) is arranged between the magnetic sheet (1) to be detected and the opponent magnetic part (4). The utility model provides the magnetic sheet magnetic pulling force test equipment which can detect the magnetic field intensity between magnets again under the condition that the magnets are isolated.

Description

Technical Field

[0001] The utility model relates to the field of magnet detection, in particular to a magnetic sheet magnetic tension testing device. Background Art

[0002] When using magnets, the magnetic influence of magnets under isolated conditions is sometimes used. However, the magnetic field strength between magnets under isolated conditions will change significantly, so it is impossible to directly judge the magnetic field strength between magnets based on the distance between magnets and the original magnetic field strength of the magnets. It is necessary to re-test the magnetic field strength between magnets under the conditions of using the magnets. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a magnetic sheet magnetic tension testing device which can re-detect the magnetic field strength between magnets under the condition of isolation between magnets.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: a magnetic sheet magnetic tension testing device, including a detection platform for placing the magnetic sheet to be detected and a detector for testing the magnetic tension, the detector is connected above the detection platform for movement along the vertical direction, and one end of the detector close to the detection platform is fixedly connected with a pair of magnetic parts that are attracted to the magnetic sheet to be detected, the magnetic sheet to be detected is fixedly connected to the detection platform, when the detector is away from the detection platform, the magnetic sheet to be detected is in a stationary state, and an isolation plate is provided between the magnetic sheet to be detected and the pair of magnetic parts.

[0005] Compared with the prior art, the advantages of the utility model are: an isolation plate is set, the isolation plate is selected according to the application requirements of the magnetic piece to be detected, a magnetic piece to be detected is placed at one end of the isolation plate, and a counterpart magnetic piece is set at the other end of the isolation plate, the counterpart magnetic piece is also selected according to the application requirements of the magnetic piece to be detected, and then the detector is used to drive the counterpart magnetic piece to move relative to the magnetic piece to be detected from near to far or from far to near. During the movement, the detector will detect the change of the pulling force between the magnetic piece to be detected and the counterpart magnetic piece from time to time, and then the change of the magnetic field strength between the magnetic piece to be detected and the counterpart magnetic piece is calculated according to the change of the pulling force, so as to judge the effective use interval distance between the magnetic piece to be detected and the counterpart magnetic piece under the isolated use condition.

[0006] As an improvement of the utility model, a fixed plate is provided above the detection platform, and the isolation plate is arranged at the center of the fixed plate. Through the improvement, because the isolation plate is thin, it is more difficult to fix it, so the fixed plate is designed and then the thickness of the isolation plate is processed at the center of the fixed plate, thereby meeting both the detection requirements of the isolation plate and the fixing requirements of the isolation plate.

[0007] As an improvement of the utility model, the detection platform is connected to the bottom of the isolation plate by moving in the horizontal direction. When the detection platform is moved out of the isolation plate, the magnetic piece to be detected is placed on the detection platform, and then the detection platform is moved to the bottom of the isolation plate. Through the improvement, because the magnetic piece to be detected and the opponent magnetic piece are isolated by the isolation plate, the increase of the distance between the two will quickly reduce the effect of the magnetic attraction between the two. Therefore, during the detection process, the distance between the magnetic piece to be detected and the isolation plate needs to be as small as possible to ensure that the opponent magnetic piece has enough moving space for detection, thereby avoiding the occurrence of the magnetic piece to be detected. The distance between the magnetic piece and the isolation plate is too large, and the magnetic force on one side of the hand magnetic piece is too small, making it difficult to detect. The small distance between the magnetic piece to be detected and the isolation plate will make it difficult to install the magnetic piece to be detected. Therefore, through the mobile setting of the detection platform, when installing the magnetic piece to be detected, the detection platform moves the isolation plate. After the magnetic piece to be detected is placed, the detection platform brings the magnetic piece to be detected back to the bottom of the isolation plate, thereby achieving the purpose of facilitating the installation of the magnetic piece to be detected, and solving the placement efficiency, placement quality and placement consistency of different magnetic pieces to be detected when detecting a large number of magnetic pieces to be detected.

[0008] As an improvement of the utility model, a vacuum suction nozzle is provided on the detection platform, and the vacuum suction nozzle fixes the magnetic piece to be detected on the detection platform through negative pressure. Through the improvement, the detection platform can fix the magnetic piece to be detected to ensure the stability of the detection.

[0009] As an improvement of the utility model, there are multiple vacuum suction nozzles, and the detection platform is provided with two concentric circular grooves and a cross groove, the center of the cross groove coincides with the center of the circular groove, and the multiple vacuum suction nozzles are respectively arranged at the intersection of the circular groove and the cross groove and at the center of the cross groove. Through the improvement, the suction area of ​​the detection platform for the magnetic sheet to be detected is expanded, and the firmness and stability of the detection platform in sucking the magnetic sheet to be detected is better guaranteed.

[0010] As an improvement of the utility model, a locating pin is provided on a set of diagonals on the detection platform, the vacuum suction nozzle is arranged between the two locating pins, and two locating holes corresponding to the locating pins are provided on the magnetic piece to be detected. When the magnetic piece to be detected is accurately placed on the detection platform, the two locating pins sink, and the vacuum suction nozzle fixes the magnetic piece to be detected with negative pressure. Through the improvement, each magnetic piece to be detected can be accurately placed on the detection platform to ensure the stability and accuracy of the detection, while ensuring the consistency of the placement of different magnetic pieces to be detected.

[0011] As an improvement of the utility model, there are two detection platforms and two fixed plates. The detector is moved between the two detection platforms by a driving motor. Through the improvement, when one detection platform is performing detection, the other detection platform can be used to place the next magnetic sheet to be detected, thereby ensuring the efficiency of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the detection platform and the fixing plate structure of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the detection platform of the utility model.

[0015] Figure 4 It is a structural schematic diagram of the detector of the utility model and the magnetic sheet to be detected during detection.

[0016] Figure 5 It is a schematic diagram of the structure of the detector of the utility model at the angle of the hand magnetic piece.

[0017] Figure 6 It is a schematic diagram of the tension distribution structure of the utility model.

[0018] As shown in the figure: 1. Magnetic piece to be tested, 2. Testing platform, 2.1. Round groove, 2.2. Cross groove, 3. Detector, 4. Opposite magnetic piece, 5. Fixing plate, 5.1. Isolation plate, 6. Vacuum nozzle, 7. Positioning pin, 8. Driving motor. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-5 As shown, a magnetic sheet magnetic tension testing device comprises a testing platform (2) for placing a magnetic sheet (1) to be tested and a detector (3) for testing magnetic tension, wherein the detector (3) is connected to the top of the testing platform (2) in a movable manner in a vertical direction, and an opposing magnetic piece (4) which is attracted to the magnetic sheet (1) to be tested is fixedly connected to one end of the detector (3) close to the testing platform (2), and the magnetic sheet (1) to be tested is fixedly connected to the testing platform (2). When the detector (3) is away from the testing platform (2), the magnetic sheet (1) to be tested is in a stationary state, and an isolation plate (5.1) is provided between the magnetic sheet (1) to be tested and the opposing magnetic piece (4).

[0021] like Figure 2-4As shown, a fixed plate (5) is provided above the detection platform (2), the isolation plate (5.1) is provided at the center of the fixed plate (5), and the detection platform (2) is connected to the bottom of the isolation plate (5.1) by moving in the horizontal direction. When the detection platform (2) moves out of the isolation plate (5.1), the magnetic sheet (1) to be detected is placed on the detection platform (2), and then the detection platform (2) is moved to the bottom of the isolation plate (5.1). A vacuum suction nozzle (6) is provided on the detection platform (2), and the vacuum suction nozzle (6) fixes the magnetic sheet (1) to be detected on the detection platform (2) through negative pressure. There are multiple vacuum suction nozzles (6), and two concentric suction nozzles (6) are provided on the detection platform (2). A circular groove (2.1) and a cross groove (2.2) are provided, the center of the cross groove (2.2) coincides with the center of the circular groove (2.1), a plurality of vacuum suction nozzles (6) are respectively provided at the intersection of the circular groove (2.1) and the cross groove (2.2) and at the center of the cross groove (2.2), a positioning pin (7) is provided on a group of diagonal portions on the detection platform (2), the vacuum suction nozzle (6) is provided between the two positioning pins (7), the magnetic sheet (1) to be detected is provided with two positioning holes corresponding to the positioning pins (7), when the magnetic sheet (1) to be detected is accurately placed on the detection platform (2), the two positioning pins (7) sink, and the vacuum suction nozzle (6) performs negative pressure fixation on the magnetic sheet (1) to be detected.

[0022] The detection platform (2) is moved in the horizontal direction by a guide cylinder, and moves back and forth between the bottom of the fixed plate (5) and the outside of the fixed plate (5). Two positioning pins (7) are fixedly connected to a cylinder at the same time, and the extension and retraction of the positioning pins (7) are adjusted by the control of the cylinder.

[0023] like Figure 1 As shown, there are two detection platforms (2) and two corresponding fixing plates (5), and the detector (3) moves between the two detection platforms (2) through a driving motor (8). The detector (3) is on a driving guide rail that is vertically moved by a motor, and the vertical driving guide rail moves horizontally between the two detection platforms (2) under the action of the driving motor (8).

[0024] The detection steps are as follows:

[0025] S1: the detector (3) moves to above a fixed plate (5) at a height away from the fixed plate (5);

[0026] S2: the detection platform (2) moves out from under the fixing plate (5), and the positioning pin (7) extends;

[0027] S3: placing the magnetic sheet (1) to be tested on the testing platform (2) by aligning the positioning hole with the positioning pin (7);

[0028] S4: The vacuum nozzle (6) is opened to suck and fix the magnetic sheet (1) to be tested;

[0029] S5: the positioning pin (7) retracts;

[0030] S6: the detection platform (2) moves to the bottom of the fixed plate (5);

[0031] S7: the detector (3) starts to slowly descend and collects the detection tension, while the other detection platform (2) executes steps S2-S6;

[0032] S8: judging the quality of the magnetic sheet (1) to be tested according to the tension data.

[0033] like Figure 6 As shown, during the process, as the detector (3) moves toward the fixed plate (5), the pulling force gradually increases, and finally when the opposing magnetic piece (4) abuts against the fixed plate (5), the pulling force directly drops to zero.

[0034] If the detector (3) is moved away from the fixed plate (5) for detection, the direction of the curve will be opposite. As the detector (3) moves away from the fixed plate (5), the pulling force gradually decreases until it drops to zero.

[0035] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A magnetic sheet magnetic tension test device, characterized in that: The invention comprises a detection platform (2) for placing a magnetic sheet (1) to be detected and a detector (3) for testing magnetic pulling force, wherein the detector (3) is connected to the top of the detection platform (2) in a movable manner in a vertical direction, and an opposing magnetic piece (4) which is attracted to the magnetic sheet (1) to be detected is fixedly connected to one end of the detector (3) close to the detection platform (2), and the magnetic sheet (1) to be detected is fixedly connected to the detection platform (2). When the detector (3) is away from the detection platform (2), the magnetic sheet (1) to be detected is in a stationary state, and an isolation plate (5.1) is provided between the magnetic sheet (1) to be detected and the opposing magnetic piece (4).

2. A magnetic sheet magnetic tension testing device according to claim 1, characterized in that: A fixed plate (5) is provided above the detection platform (2), and the isolation plate (5.1) is arranged at the center of the fixed plate (5).

3. The magnetic sheet magnetic tension testing device according to claim 1, characterized in that: The detection platform (2) is connected to the bottom of the isolation plate (5.1) by moving in the horizontal direction. When the detection platform (2) is moved out of the isolation plate (5.1), the magnetic sheet (1) to be detected is placed on the detection platform (2), and then the detection platform (2) is moved to the bottom of the isolation plate (5.1).

4. The magnetic sheet magnetic tension testing device according to claim 3, characterized in that: The detection platform (2) is provided with a vacuum suction nozzle (6), and the vacuum suction nozzle (6) fixes the magnetic sheet (1) to be detected on the detection platform (2) through negative pressure.

5. The magnetic sheet magnetic tension testing device according to claim 4, characterized in that: A plurality of vacuum suction nozzles (6) are provided, and the detection platform (2) is provided with two concentrically arranged circular grooves (2.1) and a cross groove (2.2), the center of the cross groove (2.2) coincides with the center of the circular groove (2.1), and the plurality of vacuum suction nozzles (6) are respectively arranged at the intersection of the circular groove (2.1) and the cross groove (2.2) and at the center of the cross groove (2.2).

6. The magnetic sheet magnetic tension testing device according to claim 4, characterized in that: A positioning pin (7) is provided on each of a set of diagonal corners on the detection platform (2), the vacuum suction nozzle (6) is arranged between the two positioning pins (7), and the magnetic sheet (1) to be detected is provided with two positioning holes corresponding to the positioning pins (7). When the magnetic sheet (1) to be detected is accurately placed on the detection platform (2), the two positioning pins (7) sink, and the vacuum suction nozzle (6) fixes the magnetic sheet (1) to be detected with negative pressure.

7. The magnetic sheet magnetic tension testing device according to claim 2, characterized in that: There are two detection platforms (2) in total, and two fixing plates (5) in total. The detector (3) is moved between the two detection platforms (2) by a driving motor (8).

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