Magnetic testing equipment and automated production line

Abstract

This utility model discloses a magnetic force testing device and an automated production line. The magnetic force testing device includes a material loading mechanism and a testing mechanism. The material loading mechanism is used to place the product to be tested. The testing mechanism is located above the material loading mechanism and includes a magnet assembly, a swinging component, and a magnet driving component. The first end of the swinging component is rotatably connected to the magnet assembly, and the second end of the swinging component is rotatably connected to the magnet driving component. The magnet assembly can move up and down vertically under the drive of the magnet driving component to adjust the distance between it and the magnet to be tested in the product. The magnet driving component includes a force sensor, which is connected to the magnet assembly through the swinging component. The swinging component automatically adapts to the positional deviation between the magnet to be tested and the magnet assembly, effectively improving the accuracy of magnetic force measurement of the magnet to be tested in the product.

Description

Technical Field

[0001] This utility model relates to the field of magnetic force testing equipment technology, and in particular to a magnetic force testing equipment and an automated production line. Background Technology

[0002] Existing magnetic force testing equipment typically includes a magnet assembly, a force sensor, and a drive component to move the magnet assembly. The drive component moves the magnet assembly, and the magnitude of the magnetic force of the magnet under test is obtained by detecting changes in the force sensor values. To ensure the accuracy of the magnetic force measurement, the relative position positioning between the magnet under test and the test magnet is critical in the direction of magnet assembly movement, resulting in high positioning requirements and low testing efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a magnetic force testing device and an automated production line, which can adaptively adjust the relative positions of the test magnet and the magnet under test through the magnetic attraction of a swinging component, greatly reducing the positioning accuracy required for the magnetic force testing device, reducing the test initialization cycle time, and improving testing efficiency.

[0004] On one hand, this utility model embodiment provides a magnetic force testing device, including: The material loading mechanism is used to place the product being tested. A testing mechanism is disposed above the material-carrying mechanism. The testing mechanism includes a magnet assembly, a swinging component, and a magnet driving assembly. The first end of the swinging component is rotatably connected to the magnet assembly, and the second end of the swinging component is rotatably connected to the magnet driving assembly. The magnet assembly can be raised and lowered vertically under the drive of the magnet driving assembly to adjust the distance to the magnet being tested in the product being tested. The magnet driving assembly includes a force sensor, which is connected to the magnet assembly through the swinging component and is suitable for detecting the tensile force on the magnet assembly.

[0005] According to some embodiments of the present invention, the swinging component is a hook, the magnet assembly is provided with a first hanging hole, the magnet drive assembly is provided with a second hanging hole, and the first hanging hole and the second hanging hole are connected by the hook.

[0006] According to some embodiments of the present invention, the magnet assembly includes a test magnet and a magnet sleeve. The test magnet is disposed inside the magnet sleeve. The test magnets of the same type are the same. Different types of products under test with the same test magnet correspond to different types of magnet assemblies with the same test magnet. The distance between the lower surface of the test magnet and the test magnet is the same in the vertical direction, and the distance between the upper surface of the test magnet and the magnet driving assembly is the same.

[0007] According to some embodiments of the present invention, the magnet drive assembly further includes a first drive member and a floating connector, wherein the floating connector connects the movable end of the first drive member to the force sensor.

[0008] According to some embodiments of the present invention, the magnet driving assembly further includes a second driving member, which is capable of driving the first driving member to move in a horizontal direction.

[0009] According to some embodiments of the present invention, the first driving member and the second driving member are linear lead screw modules.

[0010] According to some embodiments of the present invention, the magnet driving assembly further includes a movable piece and a U-shaped detection seat. The movable piece is fixedly connected to the movable end of the first driving member, and the U-shaped detection seat is fixed to one side of the first driving member. The extension direction of the detection groove of the U-shaped detection seat is parallel to the extension direction of the first driving member. The movable piece is adapted to pass through the detection groove of the U-shaped detection seat, and the U-shaped detection seat is electrically connected to the first driving member.

[0011] According to some embodiments of the present invention, the material loading mechanism includes a third driving member and a clamping assembly. The third driving member is provided with a loading / unloading station and a testing station. The clamping assembly is adapted to move under the drive of the third driving member to cyclically move to the loading / unloading station and the testing station. The testing station is located below the testing mechanism.

[0012] According to some embodiments of the present invention, the clamping assembly includes a support frame and a fixture, the fixture being rotatably connected to the support frame, and the rotation axis of the fixture being perpendicular to the vertical direction.

[0013] On the other hand, this utility model embodiment also provides an automated production line, including the magnetic force testing equipment described above.

[0014] This invention has at least the following beneficial effects: By incorporating an adaptive rotating oscillating element into the magnet assembly and magnet drive, during testing, when the tested magnet exhibits lateral displacement, the attractive force it exerts on the magnet assembly generates a torque, driving the oscillating element to rotate automatically. The magnet assembly adjusts its angle accordingly until the line connecting the centers of the two magnets (i.e., the main direction of the magnetic field lines) becomes perpendicular (or nearly perpendicular) to the force sensor's measuring axis. In this process, the oscillating element automatically adapts to the positional deviation of the tested magnet, effectively improving the accuracy of magnetic force measurement of the tested magnet in the tested product.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the magnetic force testing device according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the testing mechanism of the magnetic force testing device according to an embodiment of the present invention; Figure 3 for Figure 2 A magnified view of part A in the middle; Figure 4 This is a test diagram illustrating different tested products according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the material loading mechanism of the magnetic force testing device according to an embodiment of the present invention; Figure 6 This is a second structural schematic diagram of the magnetic force testing device according to an embodiment of the present invention.

[0017] Figure label: 100. Material loading mechanism; 110. Third drive component; 120. Clamping assembly; 121. Fixture; 122. Support frame; 200. Testing mechanism; 210. Magnet assembly; 211. First hanging hole; 212. Test magnet; 213. Magnet sleeve; 220. Swinging component; 230. Magnet drive assembly; 231. Force sensor; 232. Second hanging hole; 233. First drive component; 234. Floating joint; 235. Second drive component; 236. Moving piece; 237. U-shaped detection seat; 310. The product under test; 311. The magnet under test; 312. The protective film; 910. Protective cover; 920. Base. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first," "second," etc., are used in the description, they are only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, the terms "setting", "installation", "connection", etc. should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in combination with the specific content of the technical solution.

[0022] Please refer to Figures 1 to 3 As shown, in one aspect, this utility model provides a magnetic force testing device, including a material loading mechanism 100 and a testing mechanism 200. The material loading mechanism 100 is used to place the product 310 to be tested. The testing mechanism 200 is disposed above the material loading mechanism 100. The testing mechanism 200 includes a magnet assembly 210, a swing member 220 and a magnet driving assembly 230. The first end of the swing member 220 is rotatably connected to the magnet assembly 210, and the second end of the swing member 220 is rotatably connected to the magnet driving assembly 230. The magnet assembly 210 can be raised and lowered in the vertical direction under the drive of the magnet driving assembly 230 to adjust the distance with the magnet 311 to be tested in the product 310. The magnet driving assembly 230 includes a force sensor 231. The force sensor 231 is connected to the magnet assembly 210 through the swing member 220 and is suitable for detecting the tensile force on the magnet assembly 210.

[0023] According to the magnetic force testing mechanism 200 of this utility model embodiment, the product under test 310 is placed in the material carrier 100. The magnet driving component 230 of the testing mechanism 200 drives the magnet component 210 to move down and approach the product under test 310. The magnet under test 311 and the magnet component 210 in the product under test 310 attract each other, and the swing component 220 will rotate adaptively under the action of the attraction force, so that the attraction force in the direction of the line connecting the magnet under test 311 and the magnet component 210 is maximized. As the magnet driving component 230 moves, the magnet component 210 is pulled by the magnet under test 311, which causes the value detected by the force sensor 231 in the magnet driving component 230 to change. When the value corresponds to the initial value (set by the operator), the position of the magnet driving component 230 is initialized, and it begins to move upward to lift the magnet component 210. The force sensor 231 records the corresponding value every time it is lifted to a certain height. Finally, the magnetic force parameters of the magnet under test 311 are calculated based on the lifting height and the data of the force sensor 231.

[0024] It should be noted that in existing magnetic force testing schemes, the relative position of the tested magnet 311 and the magnet assembly 210 can typically only change in a single direction under the drive of the magnet driving component 230. If the center of the tested magnet 311 is not precisely located directly below the magnet assembly 210 (i.e., there is a lateral offset), then the direction of the magnetic field lines between the two magnets will no longer be perpendicular. In this case, the force experienced by the magnet assembly 210 will have a significant horizontal component, leading to a lower measured value, and the greater the offset, the greater the error.

[0025] According to the magnetic force testing mechanism 200 of this utility model embodiment, by setting an adaptive rotating oscillating member 220 in the magnet assembly 210 and the magnet drive component, it is ensured that during the test, when the tested magnet 311 has a lateral offset, the attractive force it generates on the magnet assembly 210 will form a torque, driving the oscillating member 220 to rotate automatically. The magnet assembly 210 will adjust its angle accordingly until the line connecting the centers of the two magnets (i.e., the main direction of the magnetic field lines) becomes perpendicular (or nearly perpendicular) to the measuring axis of the force sensor 231. In this process, the oscillating member 220 automatically adapts to the positional deviation of the tested magnet 311, effectively improving the accuracy of magnetic force measurement of the tested magnet 311 in the tested product 310.

[0026] In this embodiment, combined with Figure 6 As shown, the magnetic force testing equipment also includes a protective cover 910 and a base 920. The material loading mechanism 100 is installed on the upper surface of the base 920, and the protective cover 910 covers the testing mechanism 200 to improve the safety of the equipment.

[0027] In some embodiments, combined with Figure 3As shown, the swing component 220 is a hook, the magnet assembly 210 is provided with a first hanging hole 211, and the magnet drive assembly 230 is provided with a second hanging hole 232. The first hanging hole 211 and the second hanging hole 232 are connected by a hook.

[0028] In this embodiment, the swing component 220 adopts an easily detachable hook form, which not only meets the position adjustment requirements between the magnet assembly 210 and the magnet under test 311, but also allows for quick replacement of different types of magnet assemblies 210 to adapt to different types of products under test 310.

[0029] In this embodiment, the swing member 220 adopts an "S"-shaped hook, and the hook part effectively ensures that it will not come out of the first hanging hole 211 and the second hanging hole 232 during the test.

[0030] In other embodiments, the swing member 220 can also be directly connected to the magnet assembly 210 and the force sensor 231, such as by using universal joints at both ends of the swing rod to achieve flexible swinging of the magnet assembly 210.

[0031] In some embodiments, combined with Figure 3 and Figure 4 As shown, the magnet assembly 210 includes a test magnet 212 and a magnet sleeve 213. The test magnet 212 is disposed inside the magnet sleeve 213. The test magnet 212 is the same for the same type of magnet under test 311. Different types of products under test 310 with the same type of magnet under test 311 correspond to different types of magnet assemblies 210 with the same type of test magnet 212. The distance between the lower surface of the test magnet 212 and the magnet under test 311 is the same in the vertical direction, and the distance between the upper surface of the test magnet 212 and the magnet drive assembly 230 is the same.

[0032] In this embodiment, different types of magnet assemblies 210 are quickly replaced for different types of tested products 310. By adjusting the position of the test magnet 212 in the magnet sleeve 213 within the different types of magnet assemblies 210, the following conditions are met: "the distance between the lower surface of the test magnet 212 and the tested magnet 311 is the same in the vertical direction, and the distance between the upper surface of the test magnet 212 and the magnet drive assembly 230 is the same." This ensures that the position height of the magnet drive assembly 230 is basically consistent when the magnet position of the replaced magnet assembly 210 is initialized. This reduces additional errors introduced when measuring different types of tested products 310 (such as errors caused by different initial positions of the magnet drive assembly 230). In the case that the tested magnet 311 is the same for different types of tested products 310, the accuracy of the magnetic force evaluation of the tested magnet 311 is ensured by replacing the corresponding magnet assembly 210.

[0033] Combination Figure 4As shown, this ensures that the lengths of H and h2 remain constant even when the distance h1 in the tested product 310 changes.

[0034] In this embodiment, "the situation where the test magnets 311 of different types of test products 310 are the same" can be, for example... Figure 4 As shown, the products covered with protective film 312 and the products not covered with protective film 312 are different types of test products 310; currently, they can also be test products 310 with the same test magnet 311 but different wall thicknesses.

[0035] In some embodiments, combined with Figure 3 As shown, the magnet drive assembly 230 also includes a first drive member 233 and a floating connector 234, with the floating connector 234 connecting the movable end of the first drive member 233 to the force sensor 231.

[0036] In this embodiment, the floating joint 234 can achieve minute distance movement (such as 1mm movement in the X / Y / Z axis directions), reducing the accuracy requirements of the high-speed, high-precision motion platform. Combined with the swing component 220, it ensures that the line connecting the tested magnet 311, the magnet assembly 210, and the force sensor 231 is perpendicular to the magnetic field lines between the tested magnet 311 and the magnet assembly 210 during testing. This enables adaptive adjustment of the force sensor 231's position, improving the testing accuracy of the force sensor 231. The floating direction of the floating joint 234 is not particularly limited; it can be set to float freely in 3-axis or 2-axis directions as needed.

[0037] In this embodiment, the specific structure of the floating joint 234 can be referred to the prior art (CN 109164402 B).

[0038] In some embodiments, combined with Figure 2 As shown, the magnet driving assembly 230 also includes a second driving member 235, which can drive the first driving member 233 to move horizontally. The second driving member 235 enables the magnet assembly 210 to move horizontally, so as to dynamically adjust the position of the magnet assembly 210 based on the different positions of the tested product 310 of the tested magnet 311, ensuring that the magnet assembly 210 is always above the tested magnet 311.

[0039] In this embodiment, the magnet testing device includes two second driving components 235, each driving component is provided with a first driving component 233, and each first driving component 233 is provided with a force sensor 231 and a magnet assembly 210. That is, the magnet testing device can test a product 310 with multiple test magnets 311.

[0040] In some embodiments, combined with Figure 2As shown, the first drive component 233 and the second drive component 235 are linear screw modules. The linear screw module transmits power through threaded engagement, ensuring a strictly linear motion trajectory. Combined with encoder feedback, it can achieve full closed-loop control, avoiding position drift and facilitating data statistical calculation.

[0041] In other embodiments, the first drive member 233 and the second drive member 235 may also take the form of a sliding module or a cylinder module.

[0042] In some embodiments, combined with Figure 2 As shown, the magnet drive assembly 230 also includes a movable piece 236 and a U-shaped detection seat 237. The movable piece 236 is fixedly connected to the movable end of the first drive member 233, and the U-shaped detection seat 237 is fixed to one side of the first drive member 233. The extension direction of the detection groove of the U-shaped detection seat 237 is parallel to the extension direction of the first drive member 233. The movable piece 236 is adapted to pass through the detection groove of the U-shaped detection seat 237, and the U-shaped detection seat 237 is electrically connected to the first drive member 233.

[0043] In this embodiment, the position of the U-shaped detection seat 237 can be set based on actual working requirements. For example, the U-shaped detection seat 237 is located at the end of the movement of the clamping plate. When the moving piece 236 moves under the drive of the first driving member 233 and passes through the detection groove of the U-shaped detection seat 237 located at the end, the U-shaped detection seat 237 triggers the first driving member 233 to stop moving, preventing the magnet assembly 210 and the force sensor 231 from moving excessively.

[0044] In some embodiments, combined with Figure 5 As shown, the material loading mechanism 100 includes a third driving member 110 and a clamping assembly 120. The third driving member 110 is provided with a loading / unloading station and a testing station. The clamping assembly 120 is adapted to move under the drive of the third driving member 110 to cyclically move to the loading / unloading station and the testing station. The testing station is located below the testing mechanism 200.

[0045] In this embodiment, the operator loads untested product 310 and unloads tested product 310 at the loading and unloading station. The tested product 310 is then tested at the testing station. This ensures that the operator is kept away from the testing mechanism 200, facilitating loading and unloading while improving the safety of the magnetic testing equipment.

[0046] In this embodiment, the third driving component 110 is a linear screw module and a slide rail. Of course, it can also be a cylinder, a slide module, etc.

[0047] In some embodiments, combined with Figure 5As shown, the clamping assembly 120 includes a support frame 122 and a fixture 121. The fixture 121 is rotatably connected to the support frame 122, and the axis of rotation of the fixture 121 is perpendicular to the vertical direction. The product under test 310 is fixed in the fixture 121, and the magnetic force of the test mechanism 200 on both ends of the test magnet 311 of the product under test 310 is measured by the rotation of the fixture 121.

[0048] On the other hand, this utility model embodiment also provides an automated production line, including the magnetic force testing equipment as described in the above embodiment.

[0049] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A magnetic force testing apparatus, characterized by, include: A material loading mechanism (100) is used to place the product under test (310). The testing mechanism (200) is disposed above the material carrier (100). The testing mechanism (200) includes a magnet assembly (210), a swing member (220), and a magnet drive assembly (230). The first end of the swing member (220) is rotatably connected to the magnet assembly (210), and the second end of the swing member (220) is rotatably connected to the magnet drive assembly (230). The magnet assembly (210) can be raised and lowered vertically under the drive of the magnet drive assembly (230) to adjust the distance to the magnet (311) being tested in the product under test (310). The magnet drive assembly (230) includes a force sensor (231). The force sensor (231) is connected to the magnet assembly (210) through the swing member (220) and is suitable for detecting the tension force on the magnet assembly (210).

2. The magnetic force testing apparatus according to claim 1, characterized by, The swinging component (220) is a hook, the magnet assembly (210) is provided with a first hanging hole (211), and the magnet drive assembly (230) is provided with a second hanging hole (232). The first hanging hole (211) and the second hanging hole (232) are connected by the hook.

3. The magnetic force testing apparatus according to claim 1, characterized by, The magnet assembly (210) includes a test magnet (212) and a magnet sleeve (213). The test magnet (212) is disposed inside the magnet sleeve (213). The test magnet (212) is the same for the same type of magnet under test (311). Different types of products under test (310) with the same type of magnet under test (311) correspond to different types of magnet assemblies (210) with the same type of test magnet (212). The lower surface of the test magnet (212) is at the same distance from the magnet under test (311) in the vertical direction, and the upper surface of the test magnet (212) is at the same distance from the magnet drive assembly (230).

4. The magnetic force testing apparatus according to claim 1, characterized by, The magnet drive assembly (230) further includes a first drive element (233) and a floating connector (234), the floating connector (234) connecting the movable end of the first drive element (233) to the force sensor (231).

5. The magnetic test device of claim 4, wherein, The magnet drive assembly (230) further includes a second drive member (235), which is capable of driving the first drive member (233) to move in the horizontal direction.

6. The magnetic test device of claim 5, wherein, The first drive unit (233) and the second drive unit (235) are linear lead screw modules.

7. The magnetic testing apparatus of claim 4, wherein, The magnet drive assembly (230) further includes a movable piece (236) and a U-shaped detection seat (237). The movable piece (236) is fixedly connected to the movable end of the first drive member (233). The U-shaped detection seat (237) is fixed to one side of the first drive member (233), and the extension direction of the detection groove of the U-shaped detection seat (237) is parallel to the extension direction of the first drive member (233). The movable piece (236) is adapted to pass through the detection groove of the U-shaped detection seat (237). The U-shaped detection seat (237) is electrically connected to the first drive member (233).

8. The magnetic test device according to any one of claims 1 to 7, characterized in that The loading mechanism (100) includes a third driving member (110) and a clamping assembly (120). The third driving member (110) is provided with a loading / unloading station and a testing station. The clamping assembly (120) is adapted to move under the drive of the third driving member (110) to cyclically move to the loading / unloading station and the testing station. The testing station is located below the testing mechanism (200).

9. The magnetic test device of claim 8, wherein, The clamping assembly (120) includes a support frame (122) and a fixture (121), the fixture (121) being rotatably connected to the support frame (122), and the axis of rotation of the fixture (121) being perpendicular to the vertical direction.

10. An automated production line characterized in that, Includes the magnetic force testing equipment as described in any one of claims 1 to 9.

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