A magnet pre-treatment system and a voice coil motor positive magnet assembly system

Abstract

The present application relates to the technical field of polishing of magnet bonding surface, and particularly relates to a magnet pretreatment system and a voice coil motor positive magnet assembly system; the system comprises a polishing support table and a polishing rotary frame rotatably arranged on the polishing support table, the lower side of the polishing support table is provided with a brake motor, the brake motor is used for driving the polishing rotary frame to intermittently rotate by 90 degrees; the polishing rotary frame is provided with a polishing disc which is detachably arranged at the four side ends; one side of the polishing support table is provided with a notch, a polishing assembly is arranged on one side of the notch of the polishing support table, and is used for polishing a plating layer on the lower surface of the magnet; the present application solves the technical problem of how to polish the batch of magnets in the jig disc.

Description

Technical Field

[0001] This invention relates to the field of magnetic bonding surface polishing technology, specifically to a magnetic pretreatment system and a voice coil motor positive magnet assembly system. Background Technology

[0002] Magnets, also known as magnets, have the property that like poles repel and unlike poles attract. Neodymium iron boron magnets are widely used in electronic products, such as hard drives, speakers, cameras, and headphones. Magnets are generally fixed to other materials by adhesive. To improve the bonding performance, the bonding surface of the magnet usually needs to be polished.

[0003] The authorization announcement number CN218696713U discloses a grinding device for processing neodymium iron boron magnets; the grinding component and the auxiliary grinding component are driven simultaneously by the driving mechanism, so that the surface of the cylindrical material is in contact with the grinding component and the auxiliary grinding component for grinding, which can ensure that the cylindrical material is fully ground; however, it can only grind a single material and cannot grind a batch of magnets in the jig.

[0004] Therefore, the problem in the existing technology is: how to remove scratches from a batch of magnets inside the jig. Summary of the Invention

[0005] This invention provides a magnet pretreatment system and a voice coil motor positive magnet assembly system, aiming to provide a polishing device for removing scratches from a batch of magnets in a jig.

[0006] The technical solution used in this invention is as follows: A magnet pretreatment system includes a polishing support table and a polishing rotating frame rotatably mounted on the polishing support table. A brake motor is provided on the lower side of the polishing support table, which is used to drive the polishing rotating frame to rotate intermittently by 90 degrees. Polishing discs are detachably provided on the four sides of the polishing rotating frame. A notch is provided on one side of the polishing support table, and a polishing component is installed on one side of the notch of the polishing support table for polishing scratches on the electroplated layer on the lower surface of the magnet.

[0007] Furthermore, a square-section receiving groove is provided on the upper side of the grinding disc; the four corners of the receiving groove are provided with round-section anti-collision corners; a round-section grinding hole is provided at the bottom of the receiving groove, and the grinding hole penetrates the grinding disc.

[0008] Furthermore, the grinding assembly includes a guide rail screw slide table arranged opposite to each other. The slider of the guide rail screw slide table is equipped with a transverse sliding plate. A grinding cylinder is vertically mounted on the transverse sliding plate. The push head of the grinding cylinder extends upward through the transverse sliding plate and is fixed to the grinding support plate. Multiple grinding shafts are rotatably fitted on the grinding support plate. A grinding head is mounted on the upper end of the grinding shaft. A transmission wheel is mounted on the grinding shaft, and the transmission wheels are connected to each other by a transmission chain. A grinding drive motor is mounted on the lower side of the grinding shaft, which drives the grinding head to rotate. A pressure stop is mounted on the upper side of the grinding disc, which is used to press and stop the upper side of the magnet during the grinding of the magnet.

[0009] Furthermore, the pressure stop includes a pressure stop plate, the two sides of which are slidably engaged with the two sides of the grinding support plate via pressure stop sliding shafts. A pressure stop spring is installed between the pressure stop plate and the grinding support plate via a spring seat. A through channel is opened between the lower spring seat and the grinding support plate. A pulley groove corresponding to the pressure stop spring is opened on the transverse sliding plate. A rope pulley is rotatably engaged in the pulley groove via a pulley shaft. One end of the rope is fixed to the upper spring seat and is located inside the pressure stop spring. The other end of the rope passes downward through the channel of the grinding support plate, passes around the guide wheel, and is fixed to the lower side of the grinding push plate.

[0010] Furthermore, the grinding plate is provided with an abutment plate, and the two sides of the abutment plate are slidably engaged with the grinding plate through an abutment shaft; an abutment spring passes through the abutment shaft between the abutment plate and the grinding plate; pressure rings are provided at intervals on the abutment plate, and the pressure rings are sleeved on the outside of the grinding head.

[0011] Furthermore, a pressing plate is slidably mounted on the grinding tray, and the two sides of the pressing plate are slidably engaged with the two sides of the grinding tray via pressing sliding shafts. A pressing spring passes through the pressing sliding shafts between the pressing plate and the grinding tray. Pressing rings are spaced apart on the pressing plate, and the spacing of the pressing rings corresponds to the grinding holes. Six blowing components are spaced apart between the pressing plate and the grinding tray, and the blowing components are used to blow the lower surface of the magnet after grinding.

[0012] Furthermore, the purging assembly includes a closed rubber inflation chamber with a corrugated sidewall. An air inlet pipe is located on the lower side of the chamber, and a first one-way valve is installed on the inlet pipe, with the first one-way valve directing the air inlet to the outside of the chamber. An exhaust pipe is located on the upper side of the chamber. The exhaust pipe is equipped with a second one-way valve, with the second one-way valve directing the air outlet from the inside of the chamber to the outside. The rubber inflation chamber is bonded between the pressing plate and the grinding support plate. The exhaust pipe extends upward through the pressing ring, and the air inlet pipe extends downward through the grinding support plate. The grinding cylinder extends. The pressing ring contacts the lower surface of the grinding disc, and the exhaust pipe extends into the grinding hole. The pressing ring presses the rubber inflation chamber, and the gas inside the chamber is discharged through the exhaust pipe, purging the lower surface of the ground NdFeB magnet.

[0013] The second aspect of this application discloses a positive magnet assembly system for a voice coil motor, including the magnet pretreatment system described above, and an assembly base on which the magnet pretreatment system is disposed. A belt conveyor is provided on the front side of the assembly base to receive the assembly unit transferred from the previous process. A six-axis robotic arm is provided on the assembly base, and a magnet transfer unit is installed at the execution end of the six-axis robotic arm. The magnets polished by the magnet pretreatment system are transferred to the groove of the AF carrier on the assembly unit through the magnet transfer unit.

[0014] Furthermore, a stop cylinder and a lifting cylinder are sequentially arranged on the lower side of the belt conveyor; an L-shaped stop plate is provided on the upper side of the stop cylinder, and a U-shaped lifting plate is provided on the upper side of the lifting cylinder; a zigzag-shaped drive base plate is provided on the upper side of the belt conveyor, and a drive cylinder is provided on the drive base plate; a rack is provided on the push head of the drive cylinder; a fixture box is slidably arranged on the assembly unit; the lifting cylinder drives the assembly unit to rise to the position corresponding to the drive base plate, and the drive cylinder extends to make the rack engage with the assembly unit, thereby driving the fixture box to move to both sides.

[0015] Furthermore, the magnet transfer unit includes a vertically arranged fixed plate and a rotating plate. The fixed plate has a fixed ear on its lower side and a rotating ear on its upper side. The fixed ear and the rotating ear are rotatably connected. A rotary motor is provided inside the fixed ear, which drives the ear to rotate. An assembly cylinder is provided on the rotating plate. The push head of the assembly cylinder passes downward through the rotating plate and is fixed to the assembly plate. Six assembly heads are provided on the lower side of the assembly plate, and an electromagnet is provided at the end of each assembly head.

[0016] The beneficial effects achieved by this invention are as follows: the guide screw slide moves the grinding tray horizontally as a whole, and the grinding head corresponds to the grinding hole on the lower side of the grinding disc; the grinding drive motor is turned on, driving the six grinding heads to rotate synchronously; the grinding cylinder extends, driving the grinding head to move upward; the pressing stop presses the magnet, the grinding head contacts the lower surface of the magnet, and the grinding head rotates to grind and scratch the electroplated layer on the lower surface of the magnet, thereby increasing the bonding force between the magnet and the object to be bonded. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the magnet pretreatment system of the present invention.

[0018] Figure 2 This is a schematic diagram of the brake motor position according to the present invention.

[0019] Figure 3 This is a schematic diagram of the grinding rotating frame structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the grinding disc structure of the present invention.

[0021] Figure 5This is a schematic diagram showing the position of the polishing component of the present invention.

[0022] Figure 6 This is a schematic diagram of the grinding component structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the abutment plate structure of the present invention.

[0024] Figure 8 This is a schematic diagram of the pressure-stopping component structure of the present invention.

[0025] Figure 9 This is a schematic diagram of the extrusion head structure of the present invention.

[0026] Figure 10 This is a schematic diagram of the pressing plate structure of the present invention.

[0027] Figure 11 This is a schematic diagram of the purging assembly structure of the present invention.

[0028] Figure 12 This is a schematic diagram of the structure of a voice coil motor product.

[0029] Figure 13 This is a schematic diagram of the positive magnet assembly system for the voice coil motor of the present invention.

[0030] Figure 14 This is a schematic diagram of the position of the lifting cylinder of the present invention.

[0031] Figure 15 This is a schematic diagram of the lifting plate structure of the present invention.

[0032] Figure 16 This is a schematic diagram of the assembly unit structure of the present invention.

[0033] Figure 17 This is a schematic diagram of the cross-sectional structure of the drive slide of the present invention.

[0034] Figure 18 This is a schematic diagram of the fixture box structure of the present invention.

[0035] Figure 19 This is a schematic diagram of the magnet transfer unit structure of the present invention. Figure 1 .

[0036] Figure 20 This is a schematic diagram of the magnet transfer unit structure of the present invention. Figure 2 .

[0037] In the diagram: 1. Grinding support table; 2. Grinding rotating frame; 3. Brake motor; 4. Insertion slot; 5. Insert shaft; 6. Attracting magnet; 7. Grinding disc; 8. Receiving groove; 9. Anti-collision corner; 10. Grinding hole; 11. Guide rail, lead screw, and slide table; 12. Horizontal sliding plate; 13. Grinding cylinder; 14. Grinding support plate; 15. Grinding shaft; 16. Grinding head; 17. Transmission wheel; 18. Transmission chain; 19. Grinding drive motor; 20. 21. Pressure plate; 22. Pressure anti-slip shaft; 23. Pressure spring; 24. Spring seat; 25. Pulley groove; 26. Rope pulley; 27. Rope; 28. Movable lower pressure shaft; 29. ​​Extrusion head; 30. Buffer spring; 31. Abutment plate; 32. Abutment shaft; 33. Abutment spring; 34. Pressure ring; 35. Pressing plate; 36. Pressing slide shaft; 37. Pressing spring; 38. Pressing ring; 39. Rubber inflation chamber; 30. Inlet 40. Air pipe; 41. First one-way valve; 42. Exhaust pipe; 43. Second one-way valve; 44. Assembly base; 45. Belt conveyor; 46. Six-axis robotic arm; 47. Stop cylinder; 48. Lifting cylinder; 49. Stop plate; 50. Lifting plate; 51. Drive base plate; 52. Drive cylinder; 53. Rack; 54. Upper base; 55. Lower base; 56. Connecting plate; 57. Drive slide rail; 58. Drive slide shaft; 59. 8. Drive slider; 59. Drive return spring; 60. Tooth groove; 61. Gear shaft; 62. Drive gear; 63. Transmission gear; 64. Slot; 65. Bearing component; 66. Top cover; 67. Snap-fit ​​groove; 68. Snap-fit ​​post; 69. Assembly notch; 70. Fixing plate; 71. Rotating plate; 72. Fixing ear; 73. Rotating ear; 74. Rotary motor; 75. Assembly cylinder; 76. Assembly head; 77. Assembly plate. Detailed Implementation

[0038] To facilitate understanding of the present invention by those skilled in the art, specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0040] like Figure 1 As shown, the present invention provides a magnet pretreatment system, including an N-shaped grinding support table 1 and a grinding rotating frame 2 rotatably mounted on the grinding support table 1. The grinding support table 1 is used to support the entire device; as shown... Figure 2As shown, a brake motor 3 is installed on the lower side of the grinding support table 1 (the motor locks itself after stopping). The motor shaft of the brake motor 3 extends upward through the grinding support table 1 and is fixed to the grinding rotating frame 2. The brake motor 3 is used to drive the grinding rotating frame 2 to rotate intermittently by 90 degrees. Figure 3 As shown, the grinding rotating frame 2 has a cross-shaped structure. The four sides of the grinding rotating frame 2 are provided with insertion slots 4. Iron sheets (not shown in the figure) are glued to the bottom of the insertion slots 4. The end of the grinding disc 7 is provided with a shaft 5. The end of the shaft 5 is provided with a magnet 6. The shaft 5 is inserted into the insertion slot 4. The grinding disc 7 and the grinding rotating frame 2 are detachably fixed by the magnet 6. After loading, the loaded grinding disc 7 is removed, and the grinding disc 7 filled with magnets (without grinding scratches) is inserted and installed. Figure 4 The diagram shows the structure of the grinding disc 7. A square-section receiving groove 8 is provided on the upper side of the grinding disc 7, the cross-sectional shape of which corresponds to that of the magnet. The four corners of the receiving groove 8 are provided with rounded anti-collision corners 9, ensuring that the four corners of the magnet do not contact the four corners of the receiving groove 8 when placed inside. A rounded grinding hole 10 is provided at the bottom of the receiving groove 8, penetrating the grinding disc 7. Figure 5 As shown, a notch is provided on one side of the grinding support table 1, and the grinding component is installed on one side of the notch of the grinding support table 1. The grinding component grinds the electroplated layer on the lower surface of the magnet placed in the receiving groove 8 to remove scratches (only scratches are removed, without damaging the electroplated layer); thereby increasing the bonding force between the magnet and the object to be bonded.

[0041] like Figure 6-7As shown, the grinding assembly includes a guide rail screw slide 11 (with its own drive source) arranged opposite to each other. A transverse sliding plate 12 is provided on the slider of the guide rail screw slide 11. Two grinding cylinders 13 are vertically mounted on the transverse sliding plate 12. The push head of the grinding cylinder 13 extends upward through the transverse sliding plate 12 and is fixed to the grinding support plate 14. Six grinding shafts 15 are rotatably fitted on the grinding support plate 14. Grinding heads 16 are provided on the upper end of each grinding shaft 15. The grinding heads 16 have a frosted surface, and their diameter is smaller than the diameter of the grinding hole 10. A transmission wheel 17 is provided on each grinding shaft 15, and the transmission wheels 17 are connected by a transmission chain 18. The transmission wheel 17 can be a gear, and the transmission chain 18 can be a chain. Alternatively, the transmission wheel 17 can be a pulley, and the transmission chain 18 can be a belt, which also has a necessary tensioning structure. A certain grinding shaft 15... A grinding drive motor 19 is provided on the lower side. The grinding drive motor 19 is fixed to the lower side of the grinding tray 14 by a motor bracket. The motor shaft of the grinding drive motor 19 is fixed to the grinding shaft 15 by a coupling (not shown in the figure). A pressure stop is provided on the upper side of the grinding disc 7. The pressure stop is used to press the upper side of the magnet during the grinding of the magnet to prevent the grinding head 16 from squeezing the magnet upward. During grinding, the guide rail screw slide 11 drives the grinding tray 14 to move laterally as a whole. The grinding head 16 corresponds to the grinding hole 10 on the lower side of the grinding disc 7. The grinding drive motor 19 is turned on, driving the six grinding heads 16 to rotate synchronously. The grinding cylinder 13 extends, driving the grinding head 16 to move upward. The pressure stop presses the magnet, and the grinding head 16 contacts the lower surface of the magnet. The grinding head 16 rotates and grinds the electroplated layer on the lower surface of the magnet to remove scratches.

[0042] One embodiment of the pressure-stopping component involves an N-shaped pressure-stopping frame on the grinding support table 1, with a pressure-stopping cylinder mounted on the frame. The push head of the pressure-stopping cylinder extends downward through the pressure-stopping frame and is fixed to a pressure-stopping plate 20. The pressure-stopping plate 20 covers the entire grinding disc 7 (not shown in the first embodiment of the pressure-stopping component). In use, the pressure-stopping plate 20 completely covers and presses down on the grinding disc 7. Figure 8As shown, the second embodiment of the pressure stop includes a pressure stop plate 20. The two sides of the pressure stop plate 20 are slidably engaged with the two sides of the grinding support plate 14 via pressure stop shafts 21 (the lower end of the pressure stop shafts 21 has an anti-detachment structure). A pressure stop spring 22 is installed between the pressure stop plate 20 and the grinding support plate 14 via a spring seat 23. A through channel is formed between the lower spring seat 23 and the grinding support plate 14. A pulley groove 24 corresponding to the pressure stop spring 22 is formed on the transverse sliding plate 12. A rope pulley 25 is rotatably engaged in the pulley groove 24 via a pulley shaft. One end of the rope 26 is fixed to the upper spring seat 23, and the rope 26 is located inside the pressure stop spring 22. The other end of the rope 26 passes downward through the channel of the grinding support plate 14, then passes around the guide wheel and is fixed to the lower side of the grinding push plate. The rope 26 can be any type of wire rope or chain. In use, the guide rail screw slide 11 drives the grinding plate 14 to move laterally as a whole. The grinding head 16 corresponds to the grinding hole 10 on the lower side of the grinding disc 7, and the pressure plate 20 is located on the upper side of the magnet. The grinding cylinder 13 extends, driving the grinding head 16 to move upward. During the upward movement, the rope 26 pulls the pressure plate 20 to move to one side of the grinding plate 14. When the grinding head 16 grinds the scratches on the electroplated layer on the lower surface of the magnet, the pressure plate 20 presses against the upper side of the magnet. The overall pressing method requires an additional driving source. The pressing structure in this embodiment only presses against the aluminum iron boron to be ground, ensuring the pressing effect, ensuring the necessary downward pressing and moving distance, and without adding an additional driving source.

[0043] When polishing and scratching the electroplated layer on the lower surface of the magnet, the pressure plate 20 needs to press down on the upper side of the magnet, requiring high precision from the entire system; to solve this problem, such as Figure 9 As shown, the pressure plate 20 is equipped with six movable downward pressure shafts 27 corresponding to the receiving grooves 8. A pressing head 28 is located on the lower side of each movable downward pressure shaft 27. The cross-section of the pressing head 28 is smaller than that of the receiving groove 8. The pressing head 28 directly presses the magnet. The upper side of the pressing head 28 has an anti-detachment structure. A buffer spring 29 passes through the movable downward pressure shaft 27. The pressure plate 20 moves towards the grinding support plate 14, and the pressing head 28 directly presses the magnet, further ensuring the pressing effect. At the same time, the pressing head 28 makes flexible contact with the magnet, providing a resisting force for the magnet. The entire system has low precision requirements.

[0044] The downward pressure of the stop plate more than 20 times will cause deformation of the grinding rotating frame 2, resulting in the grinding disc 7 tilting. This prevents the grinding head 16 from aligning with the grinding hole 10, leading to low structural reliability. To solve this problem, such as... Figure 7As shown, the grinding support plate 14 is provided with an abutment plate 30. The two sides of the abutment plate 30 are slidably engaged with the grinding support plate 14 through abutment shafts 31 (the lower end of the abutment shafts 31 has an anti-detachment structure). An abutment spring 32 passes through the abutment shafts 31 between the abutment plate 30 and the grinding support plate 14. The abutment spring 32 is used to return the abutment plate 30 to its original position. Six pressure rings 33 are spaced apart on the abutment plate 30. The pressure rings 33 are sleeved on the outside of the grinding head 16. The diameter of the pressure rings 33 is larger than the diameter of the grinding head 16. During grinding, the grinding cylinder 13 extends, driving the grinding head 16 to move upward. The pressure rings 33 contact the lower surface of the grinding disc 7. The pressing head 28 contacts the upper surface of the grinding disc 7. The abutment plate 30 presses the abutment springs 32 to provide an upward lifting force for the grinding disc 7, thereby reducing the deformation of the grinding rotating frame 2.

[0045] After grinding the lower surface of the magnet, grinding particles are easily formed on the lower surface. If the ground magnet is directly bonded to the carrier, it will affect the bonding effect. To solve this problem, such as... Figure 10-11As shown, a pressing plate 34 is slidably mounted on the grinding tray 14. The two sides of the pressing plate 34 are slidably engaged with the two sides of the grinding tray 14 via pressing slide shafts 35 (the lower end of the pressing slide shafts 35 has an anti-detachment structure). A pressing spring 36 passes through the pressing slide shafts 35 between the pressing plate 34 and the grinding tray 14. Six pressing rings 37 are spaced apart on the pressing plate 34, the spacing of which corresponds to the grinding holes 10. Six blowing assemblies are spaced apart between the pressing plate 34 and the grinding tray 14. The blowing assemblies are used to clean the ground surfaces. The lower surface of the magnet is purged; the purging assembly includes a closed rubber inflation chamber 38, the sidewall of which has a corrugated structure; an air inlet pipe 39 (connected to the rubber inflation chamber 38) is provided on the lower side of the rubber inflation chamber 38, and a first one-way valve 40 is provided on the air inlet pipe 39, the first one-way valve 40 being directed to guide the air into the interior of the rubber inflation chamber 38 from the outside; an exhaust pipe 41 (connected to the rubber inflation chamber 38) is provided on the upper side of the rubber inflation chamber 38; the exhaust pipe 41 is provided with a second one-way valve 42, and the exhaust pipe 41 is provided with a second... The one-way valve 42 directs the airflow from the inside of the rubber inflation chamber 38 to the outside. The rubber inflation chamber 38 is bonded between the pressing plate 34 and the grinding support plate 14. The exhaust pipe 41 extends upward through the pressing ring 37, and the air inlet pipe 39 extends downward out of the grinding support plate 14. In use, the guide rail screw slide 11 drives the grinding support plate 14 to move laterally as a whole. The grinding head 16 corresponds to the grinding hole 10 on the lower side of the grinding disc 7, and the exhaust pipe 41 corresponds to the grinding hole 10 after grinding. The grinding cylinder 13 extends, driving the grinding head 16 to move upward, pressing... Ring 33 contacts the lower surface of the grinding disc 7; pressing ring 37 contacts the lower surface of the grinding disc 7, and exhaust pipe 41 extends into the grinding hole 10; pressing ring 37 presses the rubber inflation chamber 38, and the gas inside the rubber inflation chamber 38 is discharged through exhaust pipe 41 to blow the lower surface of the ground neodymium iron boron; thus ensuring the subsequent bonding quality; the grinding cylinder 13 retracts, pressing ring 37 separates from the grinding disc 7, pressing spring 36 and rubber inflation chamber 38 work together to return to their original position, and the rubber inflation chamber 38 is inflated through air inlet pipe 39.

[0046] The second aspect of this application provides a positive magnet assembly system for a voice coil motor;

[0047] First, let's introduce the application scenarios of positive magnet assembly: The voice coil motor includes an upper housing, a lower housing, and an intermediate carrier; such as... Figure 12The illustrated voice coil motor product includes an AF carrier located at the bottom, an OIS carrier located at the top, and a guide carrier in the middle. The upper side of the OIS carrier is fixed by a bending piece, and a magnet is bonded to one side of the AF carrier. The carriers are assembled by a combination of automated production line and manual assembly. The assembly of the AF carrier involves the following processes: carrier installation, adhesive application, magnet installation, and bonding inspection. The carrier installation process is as follows: at the carrier installation station, a six-axis robot installs the AF carrier onto a fixture, and a cover 66 is closed on the upper side of the fixture. The cover 66 fixes the AF carrier onto the fixture. The adhesive application process is as follows: adhesive beads are sprayed into the groove on the side of the AF carrier to be bonded, and the six-axis robot presses the magnet into the groove of the AF carrier.

[0048] like Figure 13 As shown, a voice coil motor positive magnet assembly system includes the magnet pretreatment system described in the above embodiment, and also includes an assembly base 43. The magnet pretreatment system is disposed on the assembly base 43. A belt conveyor 44 is provided on the front side of the assembly base 43. The belt conveyor 44 is used to receive the assembly unit transferred from the previous process (for the groove dispensing of the AF carrier) and transfer it in this process. A six-axis robotic arm 45 is provided on the assembly base 43. A magnet transfer unit is installed at the execution end of the six-axis robotic arm 45. The magnets polished by the magnet pretreatment system are transferred to the groove of the AF carrier on the assembly unit by the magnet transfer unit.

[0049] like Figure 14-15 As shown, a stop cylinder 46 and a lifting cylinder 47 are sequentially arranged on the lower side of the belt conveyor 44; an L-shaped stop plate 48 is provided on the upper side of the stop cylinder 46, and a U-shaped lifting plate 49 is provided on the upper side of the lifting cylinder 47; a zigzag-shaped drive base plate 50 is provided on the upper side of the belt conveyor 44, and a drive cylinder 51 is provided on the drive base plate 50; a rack 52 is provided on the push head of the drive cylinder 51; as shown... Figure 16-17As shown, the assembly unit includes an upper base 53 and a lower base 54; the upper base 53 and the lower base 54 are connected by connecting plates 55 on both sides; the lower base 54 has a slot 64 corresponding to the lifting plate 49 on its lower side; drive slides 56 are provided on both sides of the upper base 53, and drive slide shafts 57 are provided in the drive slides 56; drive sliders 58 are slidably fitted on the drive slide shafts 57, and drive return springs 59 pass through the drive slide shafts 57; a jig box is provided on the upper side of the drive slider 58, which is used to carry the AF carrier, and a toothed groove 60 is provided on the lower side of the drive slider 58; a gear shaft 61 is rotatably arranged between the upper base 53 and the lower base 54, and a drive gear 62 and a transmission gear 63 are keyed to the gear shaft 61; the transmission gear 63 meshes with the toothed groove 60, and the drive gear 62 is used to cooperate with the rack 52; in use, the assembly unit is transferred on the belt conveyor 44, and the stop cylinder 46 The assembly unit is laterally limited by the extension of the stop plate 48; the lifting cylinder 47 extends, and the lifting plate 49 is engaged in the slot 64, separating the assembly unit from the conveyor belt 44; the assembly unit rises to the position corresponding to the drive base plate 50, the drive cylinder 51 extends to engage the rack 52 with the drive gear 62, the rack 52 drives the drive gear 62 to rotate, and the transmission gear 63 drives the tooth groove 60 to slide outward; thereby moving the jig box to both sides, the drive slider 58 squeezes the drive return spring 59; the six-axis robotic arm 45 drives the magnet transfer unit to the upper side of the magnet pretreatment system; after adsorbing the magnet, the six-axis robotic arm 45 moves the magnet transfer unit to the front of the jig box, and the magnet is bonded to the groove of the AF carrier; through the special structural design of the assembly unit, the two jig boxes will not interfere with each other during assembly, which facilitates the simultaneous assembly of two sets of jigs.

[0050] like Figure 18 As shown, the jig box includes a carrier 65 and a top cover 66. The carrier 65 has a groove for carrying the AF carrier, and the carrier 65 has snap-fit ​​grooves 67 on both sides. The top cover 66 has snap-fit ​​posts 68 on both sides corresponding to the snap-fit ​​grooves 67. The front side of the top cover 66 has an assembly notch 69. The top cover 66 fits onto the carrier 65, fixing the AF carrier in the groove of the carrier 65. The slot of the AF carrier is located on the front side. The rack 52 drives the drive gear 62 to rotate, so that the two jig boxes on the upper base 53 are staggered, which facilitates the simultaneous assembly of two sets of jigs.

[0051] Figure 19The diagram shows a magnetic transfer unit, which includes a vertically arranged fixed plate 70 and a rotating plate 71. Fixed ears 72 are located opposite each other on the lower side of the fixed plate 70, and rotating ears 73 are located on the upper side of the rotating plate 71. The fixed ears 72 and rotating ears 73 are rotatably connected. A rotary motor 74 is located inside the fixed ears 72, which drives the ears to rotate. An assembly cylinder 75 is located on the rotating plate 71. The pusher of the assembly cylinder 75 extends downward through the rotating plate 71 and is fixed to the assembly plate 77. Six assembly heads 76 are located on the lower side of the assembly plate 77, and electromagnets are located at the ends of the assembly heads 76. In use, a six-axis robotic arm 45 moves the magnetic transfer unit to the upper side of the magnetic pretreatment system. The electromagnets are energized to attract the magnets. The six-axis robotic arm 45 moves the magnetic transfer unit to the front of the jig box. The rotary motor 74 drives the rotating plate 71 to rotate 90 degrees, and the assembly cylinder 75 extends, adhering the magnets to the grooves of the AF carrier.

[0052] Unless otherwise specified, the above methods of fixing all use common technical means employed by industry professionals, such as welding, nesting, or threaded fixing.

[0053] The following points need to be explained:

[0054] (1) The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention. Other structures can refer to the general design.

[0055] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the invention; that is, these drawings are not drawn to scale. It is understood that when an element such as a layer, film, region, or substrate 1401 is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element, or there may be intermediate elements.

[0056] (3) Where there is no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0057] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A magnet pretreatment system, characterized in that, The assembly includes a grinding support table (1) and a grinding rotating frame (2) rotatably mounted on the grinding support table (1). A brake motor (3) is provided on the lower side of the grinding support table (1), which drives the grinding rotating frame (2) to rotate intermittently by 90 degrees. Grinding discs (7) are detachably mounted on the four sides of the grinding rotating frame (2). A notch is provided on one side of the grinding support table (1), and a grinding assembly is installed on one side of the notch of the grinding support table (1) for grinding scratches on the electroplated layer of the lower surface of the magnet. A square-section receiving groove (8) is provided on the upper side of the grinding disc (7). The four corners of the receiving groove (8) are provided with circular-section anti-collision corners (9). A circular-section grinding hole (10) is provided at the bottom of the receiving groove (8), and the grinding hole (10) penetrates the grinding disc (7). The grinding assembly includes a relative The guide rail screw slide (11) is provided. The slider of the guide rail screw slide (11) is provided with a transverse sliding plate (12). The transverse sliding plate (12) is vertically provided with a grinding cylinder (13). The push head of the grinding cylinder (13) passes through the transverse sliding plate (12) and is fixed to the grinding support plate (14). Multiple grinding shafts (15) are rotatably fitted on the grinding support plate (14). The upper end of the grinding shaft (15) is provided with a grinding head (16). The grinding shaft (15) is provided with a transmission wheel (17). The transmission wheels (17) are connected to each other by a transmission chain (18). The lower side of the grinding shaft (15) is provided with a grinding drive motor (19). The grinding drive motor (19) is used to drive the grinding head (16) to rotate. The upper side of the grinding disc (7) is provided with a pressure stop. The pressure stop is used to press the upper side of the magnet when grinding the magnet.

2. The magnet pretreatment system according to claim 1, characterized in that, The pressure stop includes a pressure stop plate (20). The two sides of the pressure stop plate (20) are slidably engaged with the two sides of the grinding support plate (14) through the pressure stop sliding shaft (21). A pressure stop spring (22) is installed between the pressure stop plate (20) and the grinding support plate (14) through a spring seat (23). A through channel is opened between the lower spring seat (23) and the grinding support plate (14). A pulley groove (24) corresponding to the pressure stop spring (22) is opened on the transverse sliding plate (12). A rope pulley (25) is rotated and engaged in the pulley groove (24) through the pulley shaft. One end of the rope (26) is fixed to the upper spring seat (23). The rope (26) is located in the pressure stop spring (22). The other end of the rope (26) passes downward through the channel of the grinding support plate (14) and passes around the rope pulley (25) and is fixed to the lower side of the grinding support plate (14).

3. The magnet pretreatment system according to claim 2, characterized in that, The grinding plate (14) is provided with an abutment plate (30), and the two sides of the abutment plate (30) are slidably engaged with the grinding plate (14) through the abutment shaft (31); an abutment spring (32) passes through the abutment shaft (31) between the abutment plate (30) and the grinding plate (14); a pressure ring (33) is provided on the abutment plate (30) at intervals, and the pressure ring (33) is sleeved on the outside of the grinding head (16).

4. The magnet pretreatment system according to claim 1, characterized in that, A pressing plate (34) is slidably arranged on the grinding plate (14). The two sides of the pressing plate (34) are slidably engaged with the two sides of the grinding plate (14) through pressing slide shafts (35). A pressing spring (36) is threaded through the pressing slide shafts (35) between the pressing plate (34) and the grinding plate (14). Pressing rings (37) are provided at intervals on the pressing plate (34). The spacing of the pressing rings (37) corresponds to the grinding holes (10). Six blowing components are provided at intervals between the pressing plate (34) and the grinding plate (14). The blowing components are used to blow the lower surface of the polished magnet.

5. The magnet pretreatment system according to claim 4, characterized in that, The purging assembly includes a closed rubber inflation chamber (38), the sidewall of which has a corrugated structure; an air inlet pipe (39) is provided on the lower side of the rubber inflation chamber (38), and a first one-way valve (40) is provided on the air inlet pipe (39), the first one-way valve (40) being directed to the outside to guide into the interior of the rubber inflation chamber (38); an exhaust pipe (41) is provided on the upper side of the rubber inflation chamber (38); a second one-way valve (42) is provided on the exhaust pipe (41), the exhaust pipe (41) being directed to the inside of the rubber inflation chamber (38) to the outside. The rubber inflation chamber (38) is bonded between the pressing plate (34) and the polishing tray (14). The exhaust pipe (41) extends upward through the pressing ring (37), and the air inlet pipe (39) extends downward through the polishing tray (14). The polishing cylinder (13) extends. The pressing ring (37) contacts the lower surface of the polishing disc (7), and the exhaust pipe (41) extends into the polishing hole (10). The pressing ring (37) presses the rubber inflation chamber (38), and the gas inside the rubber inflation chamber (38) is discharged through the exhaust pipe (41) to blow the lower surface of the polished neodymium iron boron.

6. A positive magnet assembly system for a voice coil motor, characterized in that, The system includes the magnet pretreatment system as described in claim 1, and also includes an assembly base (43), on which the magnet pretreatment system is mounted; a belt conveyor (44) is provided on the front side of the assembly base (43), which is used to receive the assembly unit transferred from the previous process; a six-axis robotic arm (45) is provided on the assembly base (43), and a magnet transfer unit is installed at the execution end of the six-axis robotic arm (45); the magnets after being polished by the magnet pretreatment system are transferred to the groove of the AF carrier on the assembly unit through the magnet transfer unit.

7. The voice coil motor positive magnet assembly system according to claim 6, characterized in that, The belt conveyor (44) is provided with a stop cylinder (46) and a lifting cylinder (47) in sequence on the lower side; the stop cylinder (46) is provided with an L-shaped stop plate (48) on the upper side, and the lifting cylinder (47) is provided with a U-shaped lifting plate (49) on the upper side; the belt conveyor (44) is provided with a zigzag-shaped drive base plate (50), and the drive base plate (50) is provided with a drive cylinder (51); the push head of the drive cylinder (51) is provided with a rack (52); a fixture box is slidably provided on the assembly unit; the lifting cylinder (47) drives the assembly unit to rise to the position corresponding to the drive base plate (50), and the drive cylinder (51) extends to make the rack (52) cooperate with the assembly unit, thereby driving the fixture box to move to both sides.

8. The voice coil motor positive magnet assembly system according to claim 6, characterized in that, The magnet transfer unit includes a vertically arranged fixed plate (70) and a rotating plate (71). The fixed plate (70) has a fixed ear (72) on its lower side and a rotating ear (73) on its upper side. The fixed ear (72) and the rotating ear (73) are rotatably connected. A rotary motor (74) is provided inside the fixed ear (72), which drives the rotating ear (73) to rotate. An assembly cylinder (75) is provided on the rotating plate (71). The push head of the assembly cylinder (75) passes down through the rotating plate (71) and is fixed to the assembly plate (77). Six assembly heads (76) are provided on the lower side of the assembly plate (77), and an electromagnet is provided at the end of each assembly head (76).

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