A two-wheeled vehicle rare earth magnet steel magnetic property testing device

Abstract

The present application relates to the technical field of magnetic performance test, disclose a kind of two-wheel car rare earth magnetic steel magnetic performance testing device, including base, base is rotatably connected with material disc, multiple pole seats are arranged at equal intervals in material disc side wall, pole seat is fixed by vacuum adsorption tile-shaped magnetic steel, material disc is driven by intermittent drive mechanism to realize station conversion;Translation mechanism on base drives magnetic yoke integrated with excitation coil, J coil and H coil to move, and the concave-convex cooperation of pole seat in horizontal position is completed magnetic performance detection, adjustable pole is provided on magnetic yoke for pressing magnetic steel;Device is also equipped with automatic feeding mechanism, mechanical stripping mechanism and conveying mechanism, realize detection whole process automation;The present application solves the problem of low efficiency and poor positioning accuracy in the prior art, realizes the continuous automatic detection of two-wheel car tile-shaped rare earth magnetic steel, greatly improves the detection efficiency and result accuracy, and is suitable for industrial mass production quality detection.

Description

Technical Field

[0001] This invention relates to the field of magnetic property testing technology, and in particular to a magnetic property testing device for rare earth magnets used in two-wheeled vehicles. Background Technology

[0002] The electric two-wheeler market is developing rapidly, and the demand for low-temperature-coefficient neodymium iron boron (NdFeB) magnets for drive motors is also growing rapidly. However, in the past, the production of NdFeB magnets for two-wheelers rarely used high-abundance rare-earth cerium, resulting in high raw material costs and weak product market competitiveness. Recent research by the project team shows that simultaneously doping NdFeB with yttrium and cerium can significantly improve the thermal stability of the magnets. By producing low-temperature-coefficient, high-abundance rare-earth tile-shaped magnets, the urgent needs of electric two-wheeler drive motors can be met.

[0003] Currently, when testing rare earth magnets for two-wheeled vehicles, manual feeding is the only method. This is time-consuming and labor-intensive, making it impossible to form an assembly line operation. As a result, the testing efficiency is low, and the positioning accuracy of the rare earth magnets is low, leading to inaccurate test results. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic property testing device for rare earth magnets used in two-wheeled vehicles, which solves the problems of low feeding efficiency and inaccurate positioning mentioned in the background art.

[0005] The technical solution adopted in this invention is as follows: A magnetic performance testing device for rare earth magnets used in two-wheeled vehicles includes a base, a first bearing seat mounted on the top surface of the base, a first rotating shaft rotatably connected to the first bearing seat, a material tray connected to one end of the first rotating shaft, eight equally spaced protrusions on the side wall of the material tray, an electrode seat fixed to the protrusion by positioning screws, and a sealing ring installed on the contact surface between the protrusion and the electrode seat; the electrode seat has a first groove adapted to a tile-shaped magnet; a countersunk hole for installing positioning screws is provided in the middle of the first groove; a second groove is provided on the end face of the material tray, an annular flow channel is provided in the second groove, and a main flow channel communicating with the annular flow channel is provided in the second groove; a branch flow channel communicating with the annular flow channel is provided on the protrusion, the branch flow channel passes through the electrode seat and communicates with the countersunk hole; an end cap is installed on the second groove, and a rotary joint communicating with the main flow channel is installed on the end cap; by evacuating the rotary joint, the tile-shaped magnet is attracted. The first rotating shaft is attached to the pole base; the other end of the first rotating shaft is connected to an intermittent drive mechanism, which is used to drive the material tray to rotate intermittently; a translation mechanism is installed on the base, and a housing is installed on the moving end of the translation mechanism. A magnetic yoke is installed inside the housing. The magnetic yoke has a first coil slot, and an excitation coil is installed in the first coil slot. The frame of the excitation coil has a second coil slot, and a J coil is installed in the second coil slot. An H coil is installed on the frame of the J coil. An insulating layer is installed between the J coil and the H coil. After the J coil and the H coil are translated, they engage with the horizontal pole base. The J coil and the H coil are used to detect the magnetic properties of the tile-shaped magnet after it has been magnetized. The magnetic yoke has a guide groove, and a pole post is slidably connected to the guide groove. The large-diameter section of the pole post is used to press the tile-shaped magnet. The magnetic yoke has an adjustment groove, and an adjustment bolt is rotatably connected to the adjustment groove. The adjustment bolt is threadedly connected to the small-diameter section of the pole post. Rotating the adjustment bolt can control the position of the pole post.

[0006] The beneficial effects of this invention are as follows: This device achieves precise positioning by adsorbing the tile-shaped magnet onto the pole seat through a vacuum flow channel. A ratchet-pawl intermittent drive mechanism driven by a worm gear drives the material tray to rotate precisely and intermittently, ensuring the magnet accurately reaches the designated station. A translation mechanism driven by a screw jack precisely engages the coil assembly with the horizontal pole seat. Nested J and H coils perform high-precision magnetic property testing on the magnetized magnet. An adaptive pole head with a third spring evenly conforms to the magnet's arc surface through a V-groove, avoiding damage to the magnet's plating from rigid compression. A fully automatic feeding mechanism, linked by a rotary cylinder and telescopic rod, combined with a rotatable spring-loaded clip mechanism, significantly reduces the feeding time per station. A hot air circulation temperature control system enables continuous temperature regulation, accurately simulating the actual operating temperature of the motor. An adjustable unloading mechanism using a wedge drive can accommodate magnets of different thicknesses. The servo-driven V-shaped limit plate enables smooth, impact-free unloading, allowing for flexible unloading at any station. It supports secondary inspection of the entire loop or individual sorting of defective products. Combined with a conveyor belt with flow guidance protection, it achieves non-destructive continuous transport of the magnets after unloading. The overall device boasts high positioning accuracy, fast detection speed, and strong versatility, effectively improving testing accuracy and production efficiency. It can achieve unattended, continuous magnetic property testing. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the main view structure of this application.

[0008] Figure 2 This is a top view of the structure of this application.

[0009] Figure 3 This is a schematic diagram of the front cross-sectional structure of the pole base.

[0010] Figure 4 This is a schematic diagram of the three-dimensional structure of the material tray.

[0011] Figure 5 This is a schematic diagram of the main sectional structure of the outer casing and adjusting bolts.

[0012] Figure 6 This is a three-dimensional structural diagram of the excitation coil.

[0013] Figure 7 This is a schematic diagram of the main structure of the intermittent drive mechanism.

[0014] Figure 8 This is a schematic diagram of the front cross-sectional structure of the second rotating shaft.

[0015] Figure 9 This is a top view of the translation mechanism.

[0016] Figure 10 This is a schematic diagram of the front cross-sectional structure of the pole.

[0017] Figure 11 This is a three-dimensional structural diagram of a rotary cylinder.

[0018] Figure 12 This is a schematic diagram of the three-dimensional structure of the top block.

[0019] Figure 13 This is a schematic diagram of the front cross-sectional structure of the magazine tube.

[0020] Figure 14 This is a schematic diagram of the main structure of the cover.

[0021] Figure 15 This is a schematic diagram of the main cross-sectional structure of the cover.

[0022] Figure 16 This is a schematic diagram of the three-dimensional structure of the notch groove.

[0023] Figure 17 This is a side view sectional diagram of the ear seat.

[0024] Figure 18 This is a three-dimensional structural diagram of the push rod.

[0025] Figure 19 This is a side view sectional diagram of the unloading mechanism.

[0026] Figure 20 This is a top view of the limiting plate.

[0027] Figure 21 This is a schematic diagram of the three-dimensional structure of the limiting plate.

[0028] Figure 22 This is a side view cross-sectional diagram of the conveyor chute.

[0029] Figure 23 This is a three-dimensional structural diagram of the conveyor chute.

[0030] In the diagram: 1. Base; 2. First bearing seat; 3. First rotating shaft; 4. Material tray; 5. Boss; 6. Positioning screw; 7. Pole seat; 8. Sealing ring; 9. First groove; 10. Countersunk hole; 11. Second groove; 12. Annular flow channel; 13. Main flow channel; 14. Branch flow channel; 15. End cap; 16. Rotary joint; 17. Intermittent drive mechanism; 18. Translation mechanism; 19. Housing; 20. Magnetic yoke; 21. First coil slot; 22. Excitation coil; 23. Second coil slot; 24. J coil; 25. H coil; 26. Insulation layer; 27. Guide groove; 28. Pole post; 29. ​​Adjustment groove; 30. Adjustment bolt; 31. Cam plate; 32. Ratchet; 33. First pawl; 34. First spring; 35. First base; 36. Second pawl; 37. Second spring; 38. Limiting groove; 39. Second base; 40. First housing; 41. Second rotating shaft; 42. First worm gear; 43. First worm; 44. First motor; 45. Turntable; 46. Eccentric shaft; 47. Third base; 48. Support seat; 49. First guide rail; 50. First slide; 51. Screw jack; 52. First clamp; 53. Second clamp; 54. Positioning pin; 55. Chuck; 56. Annular groove; 57. Third spring; 58. End head; 59. V-groove; 6 0. Fourth base; 61. Rotary cylinder; 62. Swing rod; 63. Material picking plate; 64. Third groove; 65. Fifth base; 66. First telescopic rod; 67. Top block; 68. Magazine mechanism; 69. Sixth base; 70. Seventh base; 71. Hinge seat; 72. Magazine tube; 73. Second telescopic rod; 74. First slide groove; 75. Pressure rod; 76. Pressure head; 77. Fourth spring; 78. Cover; 79. Hot air pipe; 80. Heater; 81. Air guide; 82. Air chamber; 83. Fan; 84. Notch groove; 85. Ear seat; 86. First slide cavity; 87. Second slide cavity; 88. Push rod; 89. Retaining ring; 9 0. Fifth spring; 91. First wedge surface; 92. Adjusting seat; 93. Adjusting rod; 94. Adjusting nut; 95. Pressure claw; 96. Second wedge surface; 97. Sixth spring; 98. Contact rod; 99. Unloading mechanism; 100. Carrier; 101. Second bearing seat; 102. Lead screw; 103. Servo motor; 104. Second guide rail; 105. Second slide; 106. Moving seat; 107. Carrier plate; 108. Limiting plate; 109. First inclined section; 110. Horizontal section; 111. Second inclined section; 112. Conveying chute; 113. Pulley; 114. Conveyor belt; 115. Second motor; 116. Guide plate. Detailed Implementation

[0031] The embodiments of the present invention 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 the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0033] Furthermore, the terms “first,” “second,” “third,” “fourth,” “fifth,” “sixth,” “seventh,” “eighth,” “ninth,” and “tenth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figure 1-6As shown in Embodiment 1, a magnetic performance testing device for rare earth magnets used in two-wheeled vehicles includes a base 1. A first bearing seat 2 is mounted on the top surface of the base 1. A first rotating shaft 3 is rotatably connected to the first bearing seat 2. A material tray 4 is connected to one end of the first rotating shaft 3. The material tray 4 is circular in shape, and its sidewall has equally spaced protrusions 5. In this embodiment, there are eight protrusions 5, and each protrusion 5 is cylindrical in shape. An electrode seat 7 is fixed to the protrusion 5 by a positioning screw 6. A sealing ring 8 is installed on the contact surface between the protrusion 5 and the electrode seat 7. The electrode seat 7 has a first groove 9, and the cross-sectional shape of the first groove 9 is W-shaped. The first groove 9 is adapted to the tile-shaped magnet; the first groove 9 has a countersunk hole 10 in the middle for installing the positioning screw 6; the end face of the material tray 4 has a second groove 11, the second groove 11 has an annular flow channel 12, and the second groove 11 has a main flow channel 13 that connects to the annular flow channel 12; the boss 5 has a branch flow channel 14 that connects to the annular flow channel 12, the branch flow channel 14 passes through the pole seat 7 and connects to the countersunk hole 10; an end cap 15 is installed on the second groove 11, and a rotary joint 16 that connects to the main flow channel 13 is installed on the end cap 15. By drawing a vacuum into the rotary joint 16, the tile-shaped magnet is attracted. Attached to the pole base 7; the other end of the first rotating shaft 3 is connected to an intermittent drive mechanism 17, which is used to drive the material tray 4 to rotate intermittently; a translation mechanism 18 is installed on the base 1, and a housing 19 is installed on the moving end of the translation mechanism 18. A magnetic yoke 20 is installed inside the housing 19. The magnetic yoke 20 has a first coil slot 21, and an excitation coil 22 is installed in the first coil slot 21. The frame of the excitation coil 22 has a second coil slot 23, and a J coil 24 is installed in the second coil slot 23. An H coil 25 is installed on the frame of the J coil 24. The J coil 24 and the H coil 25 are connected. An insulating layer 26 is installed in the gap. After the J coil 24 and H coil 25 are translated, they are in concave-convex fit with the horizontal pole seat 7. The J coil 24 and H coil 25 are used to detect the magnetic properties of the tile-shaped magnet after it is magnetized. The magnetic yoke 20 has a guide groove 27, and a pole post 28 is slidably connected to the guide groove 27. The cross-sectional shape of the pole post 28 is T-shaped. The large diameter section of the pole post 28 is used to press the tile-shaped magnet. The magnetic yoke 20 has an adjustment groove 29, and an adjustment bolt 30 is rotatably connected to the adjustment groove 29. The adjustment bolt 30 is threadedly connected to the small diameter section of the pole post 28. Rotating the adjustment bolt 30 can control the position of the pole post 28. Movement process: A vacuum is drawn through the rotary joint 16, and the airflow sequentially passes through the main channel 13, the annular channel 12, the branch channel 14, and the countersunk hole 10 to form a negative pressure, which adsorbs the tile-shaped magnet into the first groove 9 of the pole seat 7; the material tray 4 is driven to rotate intermittently through the intermittent drive mechanism 17; the outer shell 19 is driven to move horizontally through the translation mechanism 18, and it cooperates with the concave and convex parts of the pole seat 7 at the horizontal position to magnetize the tile-shaped magnet and test its magnetic properties.Beneficial effects: By setting up a vacuum flow channel, this application can adsorb the tile-shaped magnet onto the pole seat 7 with accurate positioning; in conjunction with the intermittent drive mechanism 17, the tile-shaped magnet can be accurately rotated to the designated position; then the translation mechanism 18 docks with the tile-shaped magnet to test the magnetic properties of the magnetized magnet, saving time and effort and greatly improving the testing accuracy.

[0036] like Figure 7 and 8 As shown, as an optimization of Embodiment 1, the intermittent drive mechanism 17 includes a cam plate 31 connected to a first rotating shaft 3. A ratchet 32 ​​connected to the cam plate 31 is mounted on the first rotating shaft 3. A first pawl 33 is rotatably connected to the cam plate 31. The first pawl 33 is adapted to the ratchet 32 ​​and is used to drive the ratchet 32 ​​to rotate clockwise. A first spring 34 is mounted on the waist of the first pawl 33, and the free end of the first spring 34 is connected to the cam plate 31. A first base 35 is mounted on the base 1, and a second pawl 36 is rotatably connected to the first base 35. The hinge point is located on the waist of the second pawl 36, and the second pawl 36 is used to limit the ratchet 32 ​​to a precise position. The lower end of the second pawl 36 is connected to a second spring 37, which is connected to the first base 35. The small-diameter section of the cam plate 31 has a limiting groove 38. A second base 39 is installed on the top surface of the base 1, and a first housing 40 is installed on the second base 39. A second rotating shaft 41 is rotatably connected inside the first housing 40. A first worm gear 42 is connected to the side wall of the second rotating shaft 41. A first worm 43 is meshed on the first worm gear 42 and driven by a first motor 44. A turntable 45 is connected to the second rotating shaft 41 located outside the first housing 40. An eccentric shaft 46 is connected to the end face of the turntable 45 and is slidably connected to the limiting groove 38. Motion process: The first motor 44 drives the first worm gear 42 to rotate, which in turn drives the turntable 45 on the second rotating shaft 41 to rotate; the eccentric shaft 46 drives the cam plate 31 to oscillate back and forth; the first pawl 33 pushes the ratchet 32 ​​to rotate clockwise, and the second pawl 36 restricts the ratchet 32 ​​to rotate in reverse and accurately positions it; thus, precise intermittent rotation of the material tray 4 is achieved. Beneficial effect: By setting the intermittent drive mechanism 17, the tile-shaped magnet on the material tray 4 can be accurately rotated to the designated position.

[0037] like Figure 9As shown, as an optimization of Embodiment 1, the translation mechanism 18 includes a third base 47 connected to the base 1. Two symmetrically arranged support seats 48 are mounted on the third base 47. A first guide rail 49 is mounted on the support seats 48, and a first slide block 50 is slidably connected to the first guide rail 49. The gap between the opposing first slide blocks 50 is used to install the outer casing 19. A screw jack 51 is mounted on the third base 47. The moving end of the screw jack 51 is connected to a first clamp 52. A second clamp 53 is bolted to the first clamp 52. An adjusting bolt 30 is mounted on the second clamp 53. A positioning pin 54 is mounted on the side wall of the second clamp 53. The head of the positioning pin 54 is rotatably connected to a chuck 55, which locks with the annular groove 56 of the adjusting bolt 30. Movement process: The screw jack 51 drives the outer casing 19 to slide along the first guide rail 49, thereby causing the outer casing 19 and the coil assembly to translate as a whole. The coil assembly achieves a precise concave-convex fit with the horizontal stationary pole seat 7.

[0038] like Figure 10 As shown, as an optimization of Embodiment 1, the large-diameter end of the pole post 28 is connected to a matrix-arranged third spring 57, and the free end of the third spring 57 is connected to a pole head 58. The edge of the pole head 58 is adapted to the first groove 9 of the pole base 7, and the end face of the pole head 58 has a V-shaped groove 59 adapted to the tile-shaped magnet. During movement: When the pole post 28 moves horizontally, the V-shaped groove 59 of the pole head 58 contacts the arc surface of the tile-shaped magnet; the third spring 57 causes the pole head 58 to adaptively conform to the curvature of the magnet surface. Beneficial effects: By setting the third spring 57, damage to the magnet coating caused by rigid clamping is avoided; the V-shaped groove 59 changes from line contact with the arc surface of the tile-shaped magnet to surface contact, resulting in a uniform distribution of clamping force.

[0039] like Figure 11 and 12As shown, as an optimization of Embodiment 1, a fourth base 60 is installed on the base 1, and a rotary cylinder 61 is installed on the fourth base 60. The shaft end of the rotary cylinder 61 is connected to a rocker arm 62, and the free end of the rocker arm 62 is connected to a material-taking plate 63. The material-taking plate 63 is arc-shaped, and the top surface of the material-taking plate 63 has a third groove 64, which has the same structure as the first groove 9. A fifth base 65 is installed on the fourth base 60, and a first telescopic rod 66 is installed on the fifth base 65. The piston end of the first telescopic rod 66 is connected to a top block 67, which is adapted to the third groove 64. The top block 67 can push the tile-shaped magnet in the third groove 64 into the first groove 9. A magazine mechanism 68 is installed on the base 1, and the discharge end of the magazine mechanism 68 abuts against the top surface of the material-taking plate 63. Movement Process: The rotary cylinder 61 drives the swing arm 62 to rotate, conveying the single tile-shaped magnet in the magazine mechanism 68 to the third groove 64 of the picking plate 63; then the picking plate 63 aligns with the top station pole seat 7; the first telescopic rod 66 pushes the top block 67, smoothly pushing the magnet from the third groove 64 into the first groove 9 of the pole seat 7. Beneficial Effects: Fully automatic feeding is achieved, shortening the feeding time per station and improving testing efficiency; synchronous linkage with the intermittent drive mechanism 17 enables unattended continuous testing.

[0040] like Figure 12 and 13 As shown, as an optimization of Embodiment 1, the magazine mechanism 68 includes a sixth base 69 connected to the base 1, a seventh base 70 mounted on the sixth base 69, a hinge seat 71 mounted on the seventh base 70, a magazine tube 72 rotatably connected to the hinge seat 71, a second telescopic rod 73 hinged to the seventh base 70, the free end of the second telescopic rod 73 hinged to the waist of the magazine tube 72, and the rotatable magazine tube 72 facilitates the loading of the tile-shaped magnet; the side wall of the magazine tube 72 has a first sliding groove 74, a pressure rod 75 slidably connected in the first sliding groove 74, and a pressure head 76 adapted to the tile-shaped magnet is connected to the side wall of the pressure rod 75; a fourth spring 77 is connected to the side wall of the pressure rod 75, the free end of the fourth spring 77 is connected to the lower side wall of the magazine tube 72, and the lower port of the magazine tube 72 abuts against the material picking plate 63. Movement process: The second telescopic rod 73 extends, driving the cartridge tube 72 to rotate around the hinge seat 71 to the loading angle; after loading is completed, the second telescopic rod 73 retracts, and the cartridge tube 72 returns to the tilted working state; the fourth spring 77 pushes the pressure rod 75 and the pressure head 76 downward, pressing the magnets in the cartridge tube 72 against the material picking plate 63 in sequence.

[0041] like Figure 14 and 15As shown, as an optimization of Embodiment 1, a cover 78 is connected to the top surface of the outer shell 19. The cover 78 is arc-shaped, and its position does not affect the entry of the tile-shaped magnet from the third groove 64 into the first groove 9. The cover 78 is fitted with the material tray 4 with a clearance. A hot air pipe 79 is connected to the cover 78, and a heater 80 is installed on the hot air pipe 79. The side wall of the hot air pipe 79 has an air guide 81, and the outer wall of the hot air pipe 79 is connected to an air chamber 82 that covers the air guide 81. A fan 83 is installed on the air chamber 82. Movement process: Outside air is blown into the air chamber 82 by the fan 83 and evenly enters the hot air pipe 79 through the air guide 81. The heater 80 heats the air to the set temperature. The hot air evenly heats the magnet on the pole base 7. Beneficial effect: It achieves continuous temperature regulation from room temperature to 150°C, simulating the actual operating temperature of the motor.

[0042] like Figure 16-18As shown, as an optimization of Embodiment 1, the side wall of the pole seat 7 has two symmetrically arranged notch grooves 84. The notch grooves 84 are inverted T-shaped. Ear seats 85 are installed on the notch grooves 84. Ear seats 85 have a first sliding cavity 86 and a second sliding cavity 87. A push rod 88 is slidably connected in the first sliding cavity 86. A retaining ring 89 is connected to the waist of the push rod 88. A fifth spring 90 is sleeved on the side wall of the push rod 88 below the retaining ring 89. The fifth spring 90 creates a gap between the push rod 88 and the tile-shaped magnet. The top surface of the push rod 88 has a first wedge-shaped surface 91. An adjusting seat 92 is threadedly connected in the second sliding cavity 87. An adjusting rod 93 is threadedly connected to the center of the adjusting seat 92. The lower end of the adjusting rod 93 abuts against the push rod 88. The adjusting rod 93 can control the extension length of the push rod 88. A threaded rod 93 is threadedly connected to the adjusting rod 93 above the adjusting seat 92. Adjusting nut 94; the side wall of the ear seat 85 is slidably connected to a pressure claw 95, the pressure claw 95 is U-shaped, when the pressure claw 95 extends into the second sliding cavity 87, the adjusting rod 93 is located in the recess of the pressure claw 95, the forked part of the pressure claw 95 has a second wedge surface 96, the second wedge surface 96 is adapted to the first wedge surface 91, driving the push rod 88 to move downward, the gap between the pressure claw 95 and the ear seat 85 is connected to a sixth spring 97, in the normal state, there is a gap between the pressure claw 95 and the push rod 88, the outer wall of the pressure claw 95 is connected to a contact rod 98, the free end of the contact rod 98 is ball-shaped; and the free end of the contact rod 98 is flush with the side of the pole seat 7 to avoid structural interference between the pole seat 7 and the H coil 25; a stripping mechanism 99 is installed on the base 1, the stripping mechanism 99 is used to squeeze the contact rod 98, so that the push rod 88 peels the tile-shaped magnet from the pole seat 7. Movement process: When the contact rod 98 is squeezed by external force, it drives the pressure claw 95 to slide into the ear seat 85; the second wedge surface 96 cooperates with the first wedge surface 91 to convert the horizontal force into a vertically downward force, driving the push rod 88 to move downward; the push rod 88 pushes the tile-shaped magnet to overcome the vacuum adsorption force and separate from the pole seat 7; after the external force disappears, the fifth spring 90 and the sixth spring 97 drive all components to automatically reset. The extension length of the push rod 88 can be precisely adjusted by the adjusting rod 93 to accommodate magnets with a thickness of 0.5mm-5mm.

[0043] like Figure 19-21As shown, as an optimization of Embodiment 1, the unloading mechanism 99 includes a carrier 100, on the top surface of the carrier 100 are symmetrically arranged second bearing seats 101, and a lead screw 102 is rotatably connected to the second bearing seats 101. The lead screw 102 is driven by a servo motor 103. A second guide rail 104 is mounted on the top surface of the carrier 100, and a second slide block 105 is slidably connected to the second guide rail 104. A movable seat 106 is connected to the second slide block 105, and the movable seat 106 is threadedly connected to the lead screw 102. A carrier plate 10 is connected to the movable seat 106. 7. A limiting plate 108 is connected to the carrier plate 107. The limiting plate 108 is composed of a first inclined section 109, a horizontal section 110, and a second inclined section 111, and is V-shaped. The material tray 4 rotates clockwise. When the pole seat 7 rotates to the bottom, the limiting plate 108 squeezes the contact rod 98, and then the pressure claw 95 squeezes the push rod 88. The push rod 88 descends and peels the tile-shaped magnet off the pole seat 7, which facilitates continuous magnetic performance detection of the tile-shaped magnet. Alternatively, the limiting plate 108 moves away from the contact rod 98, and the pole seat 7 can pass smoothly to complete a full rotation for secondary magnetic performance detection. Movement process: The servo motor 103 drives the lead screw 102 to rotate, which drives the moving seat 106 to slide along the second guide rail 104 to the designated station. When the material tray 4 rotates clockwise, the contact rod 98 contacts the first inclined section 109 of the limiting plate 108 and is gradually squeezed to complete the unloading action. The contact rod 98 automatically resets after passing the horizontal section 110 and the second inclined section 111. Beneficial effects: The position of the limit plate 108 can be precisely controlled by the servo motor 103, and the material can be unloaded at any station flexibly; the V-shaped limit plate 108 achieves smooth extrusion without impact or vibration; it supports secondary inspection of the entire circle or separate sorting of defective products, which greatly improves the versatility of the device.

[0044] like Figure 22 and 23 As shown, as an optimization of Embodiment 1, a conveyor chute 112 is installed on the base 1. The conveyor chute 112 is U-shaped, and symmetrically arranged pulleys 113 are rotatably connected to the sides of the conveyor chute 112. A conveyor belt 114 is installed on the pulleys 113, which are driven by a second motor 115. The conveyor belt 114 is used to receive the tile-shaped magnets stripped from the pole seat 7. Symmetrically arranged guide plates 116 are connected to the top surface of the conveyor chute 112 to prevent the tile-shaped magnets from derailing. Technical problem solved: This solves the problem that magnets are easily damaged by falling directly after stripping, requiring manual collection and preventing continuous production. Movement process: The stripped tile-shaped magnets fall smoothly onto the conveyor belt 114; the second motor 115 drives the pulleys 113 and the conveyor belt 114 to rotate, transporting the magnets to subsequent collection or sorting stations; the guide plates 116 on both sides restrict the position of the magnets, preventing them from falling off the sides of the conveyor belt 114.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the magnetic properties of rare-earth magnets for two-wheeled vehicles, characterized in that, Includes a base (1), a first bearing seat (2) is mounted on the top surface of the base (1), a first rotating shaft (3) is rotatably connected to the first bearing seat (2), a circular material tray (4) is connected to one end of the first rotating shaft (3), the side wall of the material tray (4) has multiple protrusions (5) arranged at equal intervals, and an electrode seat (7) is fixed on the protrusion (5) by a positioning screw (6); the electrode seat (7) has a first groove (9) with a W-shaped cross section that is adapted to the tile-shaped magnet, and a countersunk hole (10) for installing the positioning screw (6) is opened in the middle of the first groove (9); a second groove (11) is opened on the end face of the material tray (4), and a vacuum flow channel communicating with the countersunk hole (10) is provided in the second groove (11); an end cap (15) is installed on the second groove (11), and a rotary joint (16) communicating with the vacuum flow channel is installed on the end cap (15); the other end of the first rotating shaft (3) is connected to An intermittent drive mechanism (17) is provided for driving the intermittent rotation of the material tray (4); a translation mechanism (18) is installed on the base (1), and a housing (19) is installed on the moving end of the translation mechanism (18). A magnetic yoke (20) is installed inside the housing (19). An excitation coil (22) is installed in the first coil slot (21) of the magnetic yoke (20). A J coil (24) is installed in the second coil slot (23) of the frame of the excitation coil (22). An H coil (25) is installed on the frame of the J coil (24). An insulating layer (26) is provided between the J coil (24) and the H coil (25). After the J coil (24) and the H coil (25) are translated, they can be convex and concave with the pole seat (7) in the horizontal position. The magnetic yoke (20) has a guide groove (27), and a pole post (28) is slidably connected on the guide groove (27). The large diameter section of the pole post (28) is used to press the tile-shaped magnet.

2. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 1, characterized in that, The intermittent drive mechanism (17) includes a cam plate (31) connected to the first rotating shaft (3). A ratchet (32) connected to the cam plate (31) is mounted on the first rotating shaft (3). A first pawl (33) adapted to the ratchet (32) is rotatably connected to the cam plate (31). The first pawl (33) is used to drive the ratchet (32) to rotate clockwise. A first spring (34) is mounted on the waist of the first pawl (33). The free end of the first spring (34) is connected to the cam plate (31). A first base (35) is mounted on the base (1). A second pawl (36) is rotatably connected to the first base (35). The hinge point of the second pawl (36) is located in its middle. The second pawl (36) is used to restrict the ratchet (32) from rotating in the opposite direction to achieve accurate positioning. The lower end of the pawl (36) is connected to a second spring (37), which is connected to the first base (35); the small diameter section of the cam plate (31) has a limiting groove (38); a second base (39) is installed on the top surface of the base (1), and a first housing (40) is installed on the second base (39). A second rotating shaft (41) is rotatably connected inside the first housing (40), and a first worm wheel (42) is connected to the side wall of the second rotating shaft (41). A first worm (43) is meshed on the first worm wheel (42), and the first worm (43) is driven by a first motor (44); a turntable (45) is connected to the second rotating shaft (41) located outside the first housing (40), and an eccentric shaft (46) is connected to the end face of the turntable (45). The eccentric shaft (46) is slidably connected to the limiting groove (38).

3. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 1, characterized in that, The magnetic yoke (20) has an adjustment groove (29), and an adjustment bolt (30) is rotatably connected to the adjustment groove (29). The adjustment bolt (30) is threadedly connected to the small-diameter section of the pole post (28). The translation mechanism (18) includes a third base (47) connected to the base (1). Two symmetrically arranged support seats (48) are installed on the third base (47). A first guide rail (49) is installed on the support seat (48). A first slide block (50) is slidably connected to the first guide rail (49). The gap between the two opposing first slide blocks (50) is... Used for installing the outer casing (19); a screw jack (51) is installed on the third base (47), the moving end of the screw jack (51) is connected to a first clamp (52), a second clamp (53) is connected to the first clamp (52) by bolts, the second clamp (53) is used to install the adjusting bolt (30), a positioning pin (54) is installed on the side wall of the second clamp (53), the head of the positioning pin (54) is rotatably connected to a chuck (55), and the chuck (55) is locked with the annular groove (56) of the adjusting bolt (30).

4. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 1, characterized in that, The large-diameter end of the pole post (28) is connected to a plurality of third springs (57) arranged in a matrix. The free end of the third spring (57) is connected to a pole head (58). The edge of the pole head (58) is adapted to the first groove (9) of the pole base (7). The end face of the pole head (58) has a V-shaped groove (59) adapted to the tile-shaped magnet.

5. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 1, characterized in that, A fourth base (60) is installed on the base (1), and a rotary cylinder (61) is installed on the fourth base (60). The shaft end of the rotary cylinder (61) is connected to a rocker arm (62), and the free end of the rocker arm (62) is connected to an arc-shaped material-taking plate (63). The top surface of the material-taking plate (63) has a third groove (64) with the same structure as the first groove (9). A fifth base (65) is installed on the fourth base (60), and a first telescopic rod (66) is installed on the fifth base (65). The piston end of the first telescopic rod (66) is connected to a top block (67) that is adapted to the third groove (64). The top block (67) can push the tile-shaped magnet in the third groove (64) into the first groove (9). A clip mechanism (68) is installed on the base (1), and the discharge end of the clip mechanism (68) abuts against the top surface of the material-taking plate (63).

6. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 5, characterized in that, The magazine mechanism (68) includes a sixth base (69) connected to the base (1), a seventh base (70) mounted on the sixth base (69), a hinge seat (71) mounted on the seventh base (70), a magazine tube (72) rotatably connected to the hinge seat (71), and a second telescopic rod (73) hinged on the seventh base (70). The free end of the second telescopic rod (73) is hinged to the waist of the magazine tube (72). The side wall of the clip tube (72) has a first groove (74), and a pressure rod (75) is slidably connected in the first groove (74). The side wall of the pressure rod (75) is connected to a pressure head (76) adapted to the tile-shaped magnet. The side wall of the pressure rod (75) is connected to a fourth spring (77). The free end of the fourth spring (77) is connected to the lower side wall of the clip tube (72). The lower end of the clip tube (72) abuts against the material taking plate (63).

7. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 5, characterized in that, The top surface of the outer shell (19) is connected to an arc-shaped cover (78). The position of the cover (78) does not affect the entry of the tile-shaped magnet from the third groove (64) into the first groove (9). The cover (78) is in clearance fit with the material tray (4). A hot air pipe (79) is connected to the cover (78). A heater (80) is installed on the hot air pipe (79). The side wall of the hot air pipe (79) has an air guide (81). The outer wall of the hot air pipe (79) is connected to an air chamber (82) that covers the air guide (81). A fan (83) is installed on the air chamber (82).

8. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 1, characterized in that, The side wall of the pole base (7) has two symmetrically arranged inverted T-shaped notches (84), and ear seats (85) are installed on the notches (84). The ear seats (85) have a first sliding cavity (86) and a second sliding cavity (87). A push rod (88) is slidably connected in the first sliding cavity (86). A retaining ring (89) is connected to the waist of the push rod (88). A fifth spring (90) is sleeved on the side wall of the push rod (88) below the retaining ring (89). The fifth spring (90) keeps a gap between the push rod (88) and the tile-shaped magnet. The top surface of the push rod (88) has a first wedge-shaped surface (91). An adjusting seat (92) is threadedly connected in the second sliding cavity (87). An adjusting rod (93) is threadedly connected to the center of the adjusting seat (92). The lower end of the adjusting rod (93) abuts against the push rod (88). 2) An adjusting nut (94) is threaded onto the upper adjusting rod (93); a U-shaped pressure claw (95) is slidably connected to the side wall of the ear seat (85), and the forked part of the pressure claw (95) has a second wedge surface (96) that is adapted to the first wedge surface (91), which can drive the push rod (88) to move downward; a sixth spring (97) is connected between the pressure claw (95) and the ear seat (85), and a gap is left between the pressure claw (95) and the push rod (88) in the normal state; a contact rod (98) with a ball-shaped free end is connected to the outer wall of the pressure claw (95), and the free end of the contact rod (98) is flush with the side of the pole seat (7); a stripping mechanism (99) is installed on the base (1), and the stripping mechanism (99) is used to squeeze the contact rod (98) so that the push rod (88) peels the tile-shaped magnet from the pole seat (7).

9. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 8, characterized in that, The unloading mechanism (99) includes a carrier (100), on the top surface of which a symmetrically arranged second bearing seat (101) is mounted. A lead screw (102) is rotatably connected to the second bearing seat (101), and the lead screw (102) is driven by a servo motor (103). A second guide rail (104) is mounted on the top surface of the carrier (100), and a second slide block (105) is slidably connected to the second guide rail (104). A movable seat (106) is connected to the second slide block (105), and the movable seat (106) is threadedly connected to the lead screw (102). A carrier plate (107) is connected to the movable seat (106), and a limiting plate (108) is connected to the carrier plate (107). The limiting plate (108) is composed of a first inclined section (109), a horizontal section (110), and a second inclined section (111) and is V-shaped in general. When the material tray (4) rotates clockwise and the pole seat (7) rotates to the bottom, the limiting plate (108) can squeeze the contact rod (98), so that the pressure claw (95) squeezes the push rod (88) to peel off the tile-shaped magnet, or the limiting plate (108) can move away from the contact rod (98) so that the pole seat (7) can pass smoothly.

10. The magnetic property testing device for rare earth magnets used in two-wheeled vehicles according to claim 9, characterized in that, A U-shaped conveyor chute (112) is installed on the base (1). A symmetrically arranged pulley (113) is rotatably connected to the side of the conveyor chute (112). A conveyor belt (114) is installed on the pulley (113). The pulley (113) is driven by a second motor (115). The conveyor belt (114) is used to receive the tile-shaped magnets peeled off from the pole seat (7). A symmetrically arranged guide plate (116) is connected to the top surface of the conveyor chute (112).

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