Magnet surface magnetic test equipment

Abstract

The utility model discloses magnet surface magnetic test equipment, which comprises a body, the body is used for sequentially and continuously performing surface magnetic test on a plurality of magnets, the body comprises a bearing track (1) for conveying the magnets, the plurality of magnets are connected end to end to form a magnetic strip (2), and the magnetic strip (2) is movably connected to the upper surface of the bearing track (1). The body further comprises a detection mechanism (3), the detection mechanism (3) is arranged below the bearing track (1) and used for conducting surface magnetic detection on each magnet passing through the detection mechanism (3), a clamping translation mechanism (4) is arranged above the bearing track (1), and the clamping translation mechanism (4) is used for clamping the magnets and pushing the magnets to move on the bearing track (1). The utility model provides the magnet surface magnetic test equipment which is simple in structure and enables the magnetized magnet to be quickly detected.

Description

Technical Field

[0001] The utility model relates to the field of magnet detection, in particular to a device for testing the surface magnetism of a magnet. Background Art

[0002] During the magnet production process, the magnets need to be magnetized. However, some magnets may be incompletely magnetized due to electromagnetic instability or inaccurate magnetization position during the magnetization process, that is, weak magnetism, which causes the magnetic field strength of the magnet to fail to meet the standard and affects the quality of the magnet.

[0003] In order to ensure the quality of use of each magnet, it is necessary to test the magnetic strength of each magnet. Some testing equipment will separate the magnets after the magnetization is completed to ensure the convenience of testing each magnet, resulting in the magnets occupying a large amount of space after magnetization, and the steps for testing are also relatively complicated and inefficient. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a magnetic surface magnetism testing device which has a simple structure and can quickly complete the detection of the magnet after magnetization.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a magnetic surface magnetism testing device, including a main body, the main body is used to perform surface magnetism tests on multiple magnets in sequence and continuously, the main body includes a carrying track for conveying magnets, multiple magnets are connected end to end to form a magnetic strip, and the magnetic strip is movably connected to the upper surface of the carrying track, the main body also includes a detection mechanism, the detection mechanism is arranged below the carrying track for performing surface magnetism detection on each magnet passing through the detection mechanism, and a clamping translation mechanism is arranged above the carrying track, the clamping translation mechanism is used to clamp the magnet and push the magnet to move on the carrying track.

[0006] Compared with the prior art, the utility model has the following advantages: after magnetization, the magnetic adsorption state between the magnets can be directly maintained, so that a magnetic strip is formed between the magnets, and the magnetic strip moves orderly on the carrying track, and when each magnet passes over the detection mechanism, the magnets within the corresponding range will be directly subjected to a uniform magnetic field strength detection, wherein the detection range of the detection mechanism is only for one magnet, but the magnets on its side will also affect the magnetic field of the detection magnet, so that the data obtained is a magnetic field strength data of a corresponding range, but the fluctuation of the magnetic field strength can be used to accurately determine whether the magnet or its adjacent magnets are defective. , so that according to the bad test data, several magnets in the corresponding bad area can be taken out for separate testing to determine their qualified rate, and even the magnet of the defective product can be directly found according to the detection experience, thereby greatly improving the efficiency of magnet detection, and the structure is relatively simple and the cost is lower; the clamping clamp translation mechanism can operate by clamping the magnetic strip and then moving forward a distance of the thickness of the magnet, so as to achieve the effect of detecting the magnets one by one, so as to better determine which magnet is a defective product. Compared with the conveyor belt transportation method, it is easier to ensure the detection result of each magnet, and can reduce the detection error caused by movement deviation.

[0007] As an improvement of the utility model, the clamping translation mechanism includes a horizontal clamp and a drive motor. The horizontal clamp fixes the magnetic strip by clamping both sides of the magnetic strip. The horizontal clamp is connected to the drive motor through a transmission screw assembly. The drive motor drives the horizontal clamp to reciprocate along the setting direction of the load-bearing track. Through the improvement, the magnetic strip is clamped by the horizontal clamp, and then the drive motor drives the horizontal clamp to accurately move the thickness of a magnet to achieve the purpose of accurately detecting each magnet.

[0008] As an improvement of the utility model, there are two horizontal clamps in total, and the two horizontal clamps are respectively arranged on two opposite sides of the detection equipment. The two horizontal clamps are connected by a connecting plate to achieve synchronous movement along the setting direction of the load-bearing track. The connecting plate is fixedly connected to the moving block of the transmission screw assembly. Through the improvement, the stability of the clamped magnetic strip can be guaranteed by the design of the two horizontal clamps, and the design of the synchronous movement of the two horizontal clamps can ensure the stability of the movement of the magnet, so as to ensure the accuracy of the magnet in the moving direction during detection, and avoid the situation where the two horizontal clamps move asynchronously, causing the magnetic strip to break or squeeze, thereby causing the movement of the magnet to deviate from the position, affecting the detection result.

[0009] As an improvement of the utility model, the horizontal clamping jaw includes a fixed jaw and a movable jaw, and the movable jaw is moved away from or close to the fixed jaw by a cylinder. Through the improvement, through the design of the fixed jaw, it can be ensured that when clamping the magnet, the magnet is in the same position in a direction perpendicular to the moving direction, thereby ensuring the consistency of magnet detection, avoiding the magnetic field strength deviation caused by the position deviation in the direction perpendicular to the moving direction being mistaken for the magnetic field strength deviation of the magnet, thereby ensuring the detection consistency of each magnet, which is more conducive to accurately detecting defective magnets.

[0010] As an improvement of the utility model, the clamping length of the horizontal clamp is greater than the detection thickness of a single magnet. Through the improvement, the clamping consistency of multiple connected magnets can be adjusted during the clamping process, thereby ensuring the consistency of the detection position of each magnet during the detection process, which is more conducive to judging the magnetic field quality of the magnet.

[0011] As an improvement of the utility model, a feed channel is provided at the feed end of the main body, the width of which is greater than the width of the magnet and less than the maximum width of the horizontal clamp. Through the improvement, the feeding direction of the magnetic strip can be effectively controlled to ensure that the magnetic strip can be clamped by the horizontal clamp and to avoid the magnetic strip from abutting against the end of the horizontal clamp during transportation to cause movement interference.

[0012] As an improvement of the utility model, a detection hole for placing a probe of the detection mechanism is provided on the carrying rail. Through the improvement, the probe can be brought sufficiently close to the magnet, reducing interference from other magnets, making the detection interference factors less and the detection results more accurate. At the same time, this is also a structural design that can only be completed when the carrying rail does not participate in the conveying process of the magnet.

[0013] As an improvement of the utility model, a pressure wheel is provided above the carrying rail for ensuring that the magnet is against the carrying rail, and the pressure wheel is provided above the detection device, and a pressure bar for supporting the magnet is provided in the middle of the detection hole. Through the improvement, the design of the pressure wheel can ensure sufficient contact between the magnet and the carrying rail, thereby ensuring the consistency of the magnet in the longitudinal direction during detection, thereby ensuring the consistency of magnet detection, because the magnets are connected by magnetic attraction, some magnets may be offset upward during the magnetic attraction process, thereby avoiding the magnetic field strength deviation caused by the longitudinal position deviation being mistaken for the magnetic field strength deviation of the magnet, thereby ensuring the detection consistency of each magnet, which can be more conducive to accurately detecting bad magnets. The pressure wheel is provided above the detection device, and a pressure bar for supporting the magnet is provided in the middle of the detection hole. This design can not only avoid the pressure wheel from squeezing the probe when pressing the magnet, thereby affecting the use quality of the probe, but also is to ensure the consistency of the magnet in place first, and then perform detection to ensure the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the connection structure of the detection mechanism of the utility model.

[0016] Figure 3 It is a schematic diagram of the arrangement structure of the horizontal clamping jaws and the feeding channel of the utility model.

[0017] Figure 4 It is a schematic diagram of the connection structure between the pressing wheel and the detection mechanism of the utility model.

[0018] As shown in the figure: 1. load-bearing rail, 1.1. detection hole, 1.2. pressure bar, 2. magnetic strip, 3. detection mechanism, 3.1. probe, 4. clamping translation mechanism, 4.1. horizontal clamping jaw, 4.1.1. fixed jaw, 4.1.2. moving jaw, 4.2. driving motor, 4.3. transmission screw assembly, 4.3.1. moving block, 4.4. connecting plate, 5. feed channel, 6. pressure wheel. DETAILED DESCRIPTION

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

[0020] like Figure 1 , Figure 2 As shown, a magnetic surface magnetism testing device comprises a main body, the main body is used to perform surface magnetism tests on a plurality of magnets in sequence and continuously, the main body comprises a carrying track (1) for conveying the magnets, a plurality of the magnets are connected end to end to form a magnetic strip (2), the magnetic strip (2) is movably connected to the upper surface of the carrying track (1), the main body also comprises a detection mechanism (3), the detection mechanism (3) is arranged below the carrying track (1) and is used to perform surface magnetism detection on each magnet passing through the detection mechanism (3), a clamping translation mechanism (4) is arranged above the carrying track (1), the clamping translation mechanism (4) is used to clamp the magnets and push the magnets to move on the carrying track (1).

[0021] like Figure 1 , Figure 3As shown, the clamping translation mechanism (4) comprises a horizontal clamp (4.1) and a drive motor (4.2); the horizontal clamp (4.1) fixes the magnetic strip (2) by clamping the two sides of the magnetic strip (2); the horizontal clamp (4.1) is connected to the drive motor (4.2) through a transmission screw assembly (4.3); the transmission screw assembly (4.3) is a conventional mechanism; the drive motor (4.2) drives the horizontal clamp (4.1) to reciprocate along the setting direction of the bearing track (1). There are two horizontal clamping jaws (4.1) in total. The two horizontal clamping jaws (4.1) are respectively arranged on two opposite sides of the detection device. The two horizontal clamping jaws (4.1) are connected by a connecting plate (4.4) to achieve synchronous movement along the setting direction of the bearing track (1). The connecting plate (4.4) is fixedly connected to the moving block (4.3.1) of the transmission screw assembly (4.3). The horizontal clamping jaw (4.1) includes a fixed jaw (4.1.1) and a moving jaw (4.1.2). The moving jaw (4.1.2) is moved away from or close to the fixed jaw (4.1.1) by a cylinder. The clamping length of the horizontal clamping jaw (4.1) is greater than the detection thickness of a single magnet.

[0022] A feeding channel (5) is provided at the feeding end of the body, and the width of the feeding channel (5) is greater than the width of the magnet and smaller than the maximum width of the horizontal clamping jaw (4.1).

[0023] like Figure 2 , Figure 4 As shown, the carrying rail (1) is provided with a detection hole (1.1) for placing a probe (3.1) of the detection mechanism (3).

[0024] A pressure wheel (6) for ensuring that the magnet abuts against the carrying rail (1) is provided above the carrying rail (1); the pressure wheel (6) is provided above the detection device; and a pressure bar (1.2) for supporting the magnet is provided in the middle of the detection hole (1.1).

[0025] The steps are as follows:

[0026] S1: The magnetized magnetic strip (2) passes through the feed channel (5) and moves to the carrying track (1);

[0027] S2: The horizontal clamp (4.1) clamps part of the magnetic strip (2) and moves along the carrying track (1) away from the feed channel (5) by a distance equal to the thickness of the magnet;

[0028] S2.1: The magnet is clamped and positioned by the fixed claw (4.1.1);

[0029] S3: the magnet moves to the bottom of the pressure wheel (6), and the magnetic pressure wheel (6) is longitudinally positioned;

[0030] S4: The magnet moves to the top of the probe (3.1) for detection;

[0031] S5: After the test is completed, the test data is fed back to the control center to determine whether the magnetic field strength of the magnet is qualified;

[0032] S6: The horizontal clamping jaw (4.1) is released and reset towards the direction close to the feeding channel (5) to clamp the magnetic strip (2) for the next time;

[0033] S7: repeat steps S2-S6;

[0034] S8: The magnet that has completed the detection is driven by the clamping translation mechanism (4) to move to the end of the carrying track (1) and complete the collection.

[0035] When a defective magnet occurs, the clamping translation mechanism (4) can be stopped from continuing to transport it, and a mark can be made on the defective magnet manually. When the magnets are collected, the defective magnets can be taken out from the collection box, thereby not affecting the detection alignment and detection progress of the entire magnetic strip (2).

[0036] 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 surface magnetic testing device, comprising a main body, characterized in that: The body is used to perform surface magnetism tests on a plurality of magnets in sequence and continuously. The body comprises a carrying track (1) for conveying the magnets. The plurality of magnets are connected end to end to form a magnetic strip (2). The magnetic strip (2) is movably connected to the upper surface of the carrying track (1). The body also comprises a detection mechanism (3). The detection mechanism (3) is arranged below the carrying track (1) and is used to perform surface magnetism detection on each magnet passing through the detection mechanism (3). A clamping translation mechanism (4) is arranged above the carrying track (1). The clamping translation mechanism (4) is used to clamp the magnets and push the magnets to move on the carrying track (1).

2. The magnetic surface magnetic testing device according to claim 1, characterized in that: The clamping translation mechanism (4) comprises a horizontal clamping jaw (4.1) and a driving motor (4.2); the horizontal clamping jaw (4.1) fixes the magnetic strip (2) by clamping two sides of the magnetic strip (2); the horizontal clamping jaw (4.1) is connected to the driving motor (4.2) through a transmission screw assembly (4.3); and the driving motor (4.2) drives the horizontal clamping jaw (4.1) to reciprocate along the setting direction of the bearing track (1).

3. The magnetic surface magnetic testing device according to claim 2, characterized in that: There are two horizontal clamping jaws (4.1) in total. The two horizontal clamping jaws (4.1) are respectively arranged on two opposite sides of the detection device. The two horizontal clamping jaws (4.1) are connected by a connecting plate (4.4) to achieve synchronous movement along the setting direction of the bearing track (1). The connecting plate (4.4) is fixedly connected to the moving block (4.3.1) of the transmission screw assembly (4.3).

4. The magnetic surface magnetic testing device according to claim 2, characterized in that: The horizontal clamping jaw (4.1) comprises a fixed jaw (4.1.1) and a movable jaw (4.1.2), and the movable jaw (4.1.2) is moved away from or close to the fixed jaw (4.1.1) by means of a cylinder.

5. The magnetic surface magnetic testing device according to claim 4, characterized in that: The clamping length of the horizontal clamping jaw (4.1) is greater than the detection thickness of a single magnet.

6. The magnetic surface magnetic testing device according to claim 2, characterized in that: A feeding channel (5) is provided at the feeding end of the body, and the width of the feeding channel (5) is greater than the width of the magnet and smaller than the maximum width of the horizontal clamping jaw (4.1).

7. The magnetic surface magnetic testing device according to claim 1, characterized in that: The carrying rail (1) is provided with a detection hole (1.1) for placing a probe (3.1) of the detection mechanism (3).

8. The magnetic surface magnetic testing device according to claim 7, characterized in that: A pressure wheel (6) for ensuring that the magnet abuts against the carrying rail (1) is provided above the carrying rail (1); the pressure wheel (6) is provided above the detection device; and a pressure bar (1.2) for supporting the magnet is provided in the middle of the detection hole (1.1).

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