A control device and control method for controlling the size of an obliquely oriented bipolar magnet

Abstract

The present invention discloses a control size control device for obliquely oriented bipolar magnets and a control method thereof. The magnets are loaded by a loading assembly and placed on a magnetic deflection detection platform. The magnets are erected along their own magnetic deflection direction by utilizing the magnetic field of a permanent magnet assembly below the magnetic deflection detection platform. At this time, a deflection detection camera takes a picture of the magnet at one end of the magnet to determine whether the magnetic deflection direction of the magnet is in the right direction. Then, a reversing module can horizontally rotate the magnet with the reverse magnetic deflection to align it according to the judgment result of the deflection detection camera. Then, a magnetizing transfer module places the aligned magnets on a magnetizing mechanism for magnetization. Then, a unloading assembly unloads the magnetized magnets. After the magnetic deflection detection and reversing steps before magnetization, the magnetic deflection directions of all the magnets on the magnetizing mechanism are the same, so that the positions of the control size of the magnets after magnetization are also the same, thereby achieving strict control of the control size and improving the yield rate.

Description

Technical Field

[0001] The present invention belongs to the technical field of magnet detection and processing, and in particular relates to a size control device for controlling an obliquely oriented bipolar magnet and a control method thereof. Background Art

[0002] Bipolar magnetization refers to the method of realizing bipolar magnetization (i.e. N pole and S pole) on a magnet. Figure 1 As shown, the bipolar magnet is magnetized by the bipolar magnetization head 1' under the positioning of the fixture plate 2' and the rear positioning rod 3', so that the N pole and the S pole appear on both sides of the bipolar magnet, which is double-sided bipolar magnetization. Figure 2 The bipolar charged magnet shown in the figure has an N pole at the top and an S pole at the bottom on the front side. The magnetic poles on the back side of the magnet are opposite to those on the front side, with an S pole at the top and an N pole at the bottom. Figure 1 As shown, there is a non-magnetic area 4' in the middle of the magnet. The distance between the center line of the non-magnetic area and one end of the magnet (the end of the magnet away from the rear positioning rod) is fixed, and there will be tolerances in the processing of the magnet, and its length will be slightly different. Through the elastic adjustment of the rear positioning rod, the length tolerance of the magnet generally appears between the center line of the non-magnetic area and the other end of the magnet (the end of the magnet close to the rear positioning rod). Due to the influence of the magnet length on the surface magnetism, the fixed size from the center line of the non-magnetic area to one end of the magnet is the control size L that needs to be strictly controlled for bipolar charging magnets.

[0003] The magnetic field orientation of the bipolar magnet is designed to be oblique. The magnetic deflection angle of the oblique magnet is a special design of the magnet function, which is used to make two magnets with the same oblique orientation misaligned when they are attracted to each other. Also due to the oblique orientation, the magnetic deflection angle of the magnet before magnetization has two directions, left and right. When these two directions are magnetized at the pole head at the same time, two different structures will be produced, such as Figure 2 and Figure 3 As stated, Figure 2 The middle is a magnet that is magnetized to the right with a magnetic declination angle a. Figure 3 The two magnets are magnetized to the left with a magnetic declination angle a. The upper ends of the front faces of the two magnets are both N poles, and the lower ends of the front faces are both S poles. The control dimension L is located at the lower position. However, the magnetic declination angles of the two magnets are different. Figure 3 After the magnets in the figure are rotated 180° along their horizontal and vertical central axes, Figure 4 As shown, the direction and polarity of its magnetic declination angle a will be the same as Figure 2 The magnets in the same, but the control dimension L is located at the top, which is the same as Figure 2 The magnets are opposite.

[0004] Therefore, when the magnets are randomly placed and magnetized, the control dimensions of the two magnets obtained may be completely opposite in direction. Therefore, the direction of the magnetic declination must be determined before magnetization, and then the magnets with the reversed magnetic declination must be straightened before magnetization. However, the magnetic declination cannot be determined by the naked eye or senses. The existing method of using manual magnetization cannot determine the direction of the magnetic declination before magnetization. It can only be measured after magnetization through a dedicated surface magnetic measurement device. The magnets with the reversed magnetic declination during magnetization are scrapped, the product yield is low, and all finished products need to be tested through surface magnetic detection equipment, which has a high time cost. Summary of the invention

[0005] The object of the present invention is to provide a size control device and a control method for an obliquely oriented bipolar magnet, which can automatically determine the direction of the magnetic declination, and straighten the magnet with the reverse magnetic declination before magnetizing, so as to achieve strict control of the size of the magnet, improve the yield and reduce the cost.

[0006] To achieve the above-mentioned purpose, the present invention provides a size control device for obliquely oriented bipolar magnetizing magnets, comprising a feeding component, a magnetic deflection angle detection platform, a magnetic deflection angle detection camera, a reversing module, a magnetizing component, a unloading component, and a conveying component;

[0007] The feeding assembly includes a vibration plate, a feeding transfer plate and a feeding transfer module, wherein the vibration plate is connected to the feeding transfer plate to feed the magnet onto the feeding transfer plate, and the feeding transfer module is arranged on one side of the feeding transfer plate and the magnetic deflection angle detection platform to place the magnet on the feeding transfer plate onto the magnetic deflection angle detection platform;

[0008] A permanent magnet assembly and a lifting cylinder for driving the permanent magnet assembly to rise and fall are provided below the magnetic declination detection platform. When the permanent magnet assembly rises and approaches the magnet, the magnet is acted upon by the magnetic field of the permanent magnet assembly and stands up along the direction of its own magnetic declination. When the permanent magnet assembly falls and moves away from the magnet, the standing magnet falls back.

[0009] The magnetic declination detection camera is located at one end of the magnet and takes pictures of the erected magnet to determine the direction of the magnetic declination, and stores the determination result;

[0010] The reversing module is provided with a vacuum chuck above the magnetic deflection angle detection platform for horizontally rotating the magnet with the reverse magnetic deflection angle and returning it to its original position;

[0011] The magnetizing component includes a magnetizing transfer module and a magnetizing mechanism. The conveying component is arranged below the loading transfer module, the magnetizing transfer module and the unloading component. The magnetizing mechanism is arranged below the magnetizing transfer module. The loading transfer module places the magnet with the correct magnetic declination direction on the conveying component. The magnetizing transfer module places the magnet on the conveying component on the magnetizing mechanism for magnetization and puts the magnetized magnet back into the conveying component. The unloading component unloads the magnetized magnet.

[0012] Furthermore, the permanent magnet assembly is a circular magnet string vertically arranged on the lifting cylinder, and a plurality of circular magnet strings are arranged side by side at intervals on the lifting cylinder.

[0013] Furthermore, the reversing module is provided with a Y-axis moving mechanism and a Z-axis moving mechanism located on the Y-axis moving mechanism, the Z-axis moving mechanism is provided with a rotating motor, a vacuum suction cup is provided at the bottom of the rotating motor, the vacuum suction cup is located above the loading transfer plate and the magnetic deflection detection platform, and the rotating motor drives the vacuum suction cup to rotate horizontally.

[0014] Furthermore, a magnetic detection camera and a laser engraving machine are provided between the magnetizing component and the unloading component. The magnetic detection camera is located above the conveying component, and a magnetic detection plate is provided between the camera and the conveying component. A self-resetting magnetic plate is provided on the magnetic detection plate. The conveying component is provided with a lifting cylinder for driving the magnet to rise and fall below the magnetic detection plate. The laser engraving machine is located on one side of the magnetic detection camera to perform laser engraving on the controlled size position of the magnet.

[0015] Furthermore, a laser engraving detection camera and a material throwing module are provided between the laser engraving machine and the unloading assembly. The laser engraving detection camera is located above the conveying assembly to take photos of the laser engraved surface of the magnet and store the detection results. The material throwing module is arranged on one side of the laser engraving detection camera to throw away magnets with poor laser engraving or no laser engraving according to the detection results of the laser engraving detection camera.

[0016] Furthermore, the throwing module is provided with a Y-axis moving mechanism and multiple Z-axis moving mechanisms located on the Y-axis moving mechanism, each Z-axis moving mechanism is provided with an iron piece for adsorbing a magnet, a non-magnetic plate is provided below the Z-axis moving mechanism, and the iron piece is passed through the non-magnetic plate.

[0017] Furthermore, the unloading component includes a unloading transfer module, a tray transfer module, a swing plate module, a finished material basket, a tray basket and a partition basket. The tray transfer module is arranged on one side of the unloading transfer module and the conveying component. The swing plate module, the finished material basket, the tray basket and the partition basket are arranged side by side between the tray transfer module and the unloading transfer module along the length direction of the tray transfer module. The swing plate module reciprocates between the tray transfer module and the unloading transfer module. The unloading transfer module places the magnet on the conveying component on the tray of the swing plate module. The tray transfer module is used to grab the tray and the partition in the partition basket.

[0018] Furthermore, the conveying component includes a downstream conveyor belt, a return conveyor belt, a flow fixture and a flow transfer module. The downstream conveyor belt is arranged below the loading transfer module, the magnetizing transfer module, the magnetic display detection camera, the laser engraving machine, the laser engraving detection camera, the throwing module and the unloading transfer module. The return conveyor belt is arranged side by side on one side of the downstream conveyor belt along the Y-axis direction. The flow fixture is used to load magnets. The flow fixture is arranged on the return conveyor belt and the downstream conveyor belt. The downstream conveyor belt and the return conveyor belt transport the flow fixture along the X-axis direction, and the conveying directions of the two are opposite. A flow transfer module is respectively provided at both ends of the downstream conveyor belt and the return conveyor belt. The two flow transfer modules respectively grab the flow fixture to the downstream conveyor belt and the return conveyor belt.

[0019] Furthermore, the loading transfer module, the magnetizing transfer module and the unloading transfer module are all provided with a Y-axis moving mechanism and a Z-axis moving mechanism, and the Z-axis moving mechanism is arranged on the Y-axis moving mechanism. The Z-axis moving mechanism of the loading transfer module and the magnetizing transfer module is provided with a vacuum suction cup group for adsorbing multiple magnets, and the Z-axis moving mechanism of the unloading transfer module is provided with iron pieces for adsorbing multiple magnets and a non-magnetic plate for passing the iron pieces.

[0020] The present invention also provides a method for controlling the size of an obliquely oriented bipolar magnet, comprising the following steps:

[0021] S1. Place the unmagnetized magnet into a vibration plate, and the vibration plate vibrates to send the magnet into a loading transfer plate. The loading transfer module places the magnet on the loading transfer plate onto a magnetic deflection angle detection platform, and the position of the magnet corresponds to the position of the permanent magnet assembly under the magnetic deflection angle detection platform.

[0022] S2, the lifting cylinder drives the permanent magnet assembly to rise to approach the magnet, and the magnet is acted upon by the magnetic field of the permanent magnet assembly and stands up along its own magnetic declination direction. The magnetic declination detection camera takes a picture of the standing magnet at one end of the magnet to determine the direction of the magnetic declination, and stores the determination result;

[0023] S3. After determining the direction of the magnetic declination, the lifting cylinder drives the permanent magnet assembly to descend to move away from the magnet, causing the erected magnet to fall back. The reversing module drives the vacuum suction cup on it to horizontally rotate the magnet with the reverse magnetic declination by 180° according to the determination result of the magnetic declination detection camera, and then puts the magnet back to its original position, so as to correct the magnetic declination direction of the magnet.

[0024] S4, the loading and transporting module puts the aligned magnets on the conveying component, the conveying component transports the magnets to the magnetizing component, the magnetizing and transporting module puts the magnets on the conveying component on the magnetizing mechanism for magnetization, and after magnetization, the magnetizing and transporting module puts the magnets back on the conveying component;

[0025] S5, the conveying assembly conveys the magnetized magnet to the bottom of the magnetic display detection board, the lifting cylinder under the magnetic display detection board drives the magnet to rise close to the self-resetting magnetic display plate, and the magnetic display detection camera takes a picture of the magnet to determine whether the magnetic declination direction of the magnet is correct, and stores the determination result;

[0026] S6. The lifting cylinder drives the magnet down, and the conveying assembly then conveys the magnet to the laser engraving machine. The laser engraving machine performs laser engraving on the control size position of the magnet with the correct magnetic declination direction according to the judgment result of the magnetic display detection camera. The magnet with incorrect magnetic declination is not laser engraved.

[0027] S7. After laser engraving, the conveying component conveys the magnet to the laser engraving detection camera, which takes a photo of the laser engraving surface of the magnet and stores the detection results;

[0028] S8. After the laser engraving inspection, the conveying component conveys the magnet to the throwing module. The throwing module throws away the magnets with poor laser engraving or no laser engraving according to the inspection results of the laser engraving inspection camera.

[0029] S9. After throwing, the conveying component conveys the magnets that have passed the laser engraving to the unloading component. The unloading transfer module places the magnets on the tray of the tray module. After it is full, the tray module moves to the bottom of the tray transfer module. The tray transfer module stacks the trays full of magnets in the finished product basket, and then grabs the empty trays from the tray basket to the tray module. The tray module moves to the bottom of the unloading transfer module to continue the tray-stack action. At the same time, the tray transfer module grabs the partition from the partition basket to the finished product basket to avoid the mutual adsorption of two adjacent trays of magnets.

[0030] After adopting the above scheme, the beneficial effects of the present invention are:

[0031] 1. Before magnetizing the magnet, the present invention places the magnet on the magnetic deflection detection platform for magnetic deflection detection and aligns the magnetic deflection direction of the magnet. By using the magnetic field of the permanent magnet assembly, the magnet will stand up along its own magnetic deflection direction. At this time, the deflection detection camera takes a picture of the magnet at one end of the magnet to determine whether the magnetic deflection direction of the magnet is in the right direction. Then the reversing module can horizontally rotate the magnet with the reverse magnetic deflection to the right direction according to the judgment result of the magnetic deflection detection camera. Then the magnetizing transfer module places the aligning magnet on the magnetizing mechanism for magnetization, realizing automatic detection of magnetic deflection and automatic magnetization of the magnet. Moreover, after the magnetic deflection detection and reversing steps before magnetization, the magnetic deflection directions of all magnets on the magnetizing mechanism are the same, so that the magnets after magnetization not only have the same magnetic deflection direction, but also the same position of the control size, so as to achieve strict control of the control size and improve the yield rate.

[0032] 2. After magnetization, the present invention also uses a magnetic display detection camera and a magnetic display detection board to re-check the magnetic declination direction of the magnet. The difference in the magnetic field display of the obliquely oriented magnet on the self-resetting magnetic display sheet is used to determine whether the magnetic declination direction of the magnet is correct. If it is correct, the laser engraving machine will perform laser engraving marks on the control size position of the magnet to facilitate subsequent identification and random inspection operations. If it is incorrect, the laser engraving machine will not perform laser engraving. The subsequent laser engraving detection camera will inspect the magnet again, and the magnets with poor laser engraving and no laser engraving will be discarded by the throwing module. The unloading component only unloads the products with correct magnetic declination direction and qualified laser engraving. After two re-inspections and the throwing of defective products, the yield rate will be further improved. There is no need to measure each magnet with a magnetic surface measuring equipment after magnetization, which reduces the cost.

[0033] 3. The present invention transmits magnets through a transmission component, and carries out the magnet handling work through a loading transfer module, a magnetizing transfer module, a throwing module, a unloading transfer module and a tray transfer module, thereby realizing full-automatic detection, reversing, magnetizing, laser engraving, tray stacking and other operations with high work efficiency. The whole process only requires loading the magnets into the vibrating tray and replacing the empty finished product basket after the stacking is full, which greatly saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A top view of a bipolar charging magnet charging a bipolar charging pole head;

[0035] Figure 2 This is a schematic diagram of the magnet after the magnetic declination is magnetized to the right;

[0036] Figure 3 This is a schematic diagram of the magnet after being magnetized with its magnetic declination angle turned to the left;

[0037] Figure 4 for Figure 3 Schematic diagram of the magnet after flipping;

[0038] Figure 5 A top view of the loading station of the present invention;

[0039] Figure 6 A three-dimensional diagram of a loading station of the present invention;

[0040] Figure 7 It is a schematic diagram of the cooperation of the magnetic declination detection camera, the reversing module and the magnetic declination detection platform of the present invention;

[0041] Figure 8 It is a side view of the magnetic declination detection platform of the present invention;

[0042] Fig. 9 A three-dimensional diagram of the loading and transporting module of the present invention;

[0043] Fig.10 A top view of the magnetizing station of the present invention;

[0044] Fig.11 It is a three-dimensional diagram of the magnetizing mechanism of the present invention;

[0045] Fig.12 This is a top view of the laser engraving station for detecting the present invention;

[0046] Fig.13 A three-dimensional diagram of the laser engraving station for detecting the present invention;

[0047] Fig.14 It is a top view of the magnetic display detection board of the present invention;

[0048] Fig.15 It is a schematic diagram of the positive magnetic declination development of the present invention;

[0049] Fig.16 It is a schematic diagram of reverse magnetic declination development of the present invention;

[0050] Fig.17 This is a top view of the laser engraving detection and throwing station of the present invention;

[0051] Fig.18 This is a three-dimensional diagram of the laser engraving detection and throwing station of the present invention;

[0052] Fig.19 A three-dimensional diagram of the material throwing module of the present invention;

[0053] Fig. 20 A top view of the blanking station of the present invention;

[0054] Fig.21 A three-dimensional diagram of the blanking station of the present invention;

[0055] Fig. 22 It is a stereoscopic diagram of the material unloading and transfer module of the present invention.

[0056] Description of labels:

[0057] 1', bipolar charging head; 2', fixture plate; 3', rear positioning rod; 4', non-magnetic area; 1, loading station; 11, vibration plate; 12, loading transfer plate; 13, loading transfer module; 131, vacuum suction cup group; 14, magnetic deflection detection platform; 141, lifting cylinder; 142, circular magnet string; 15, magnetic deflection detection camera; 16, reversing module; 161, rotating motor; 162, vacuum suction cup; 2, magnetizing station; 21, magnetizing transfer module; 22, magnetizing mechanism; 221, magnetizing pole head; 222, magnetizing fixture plate; 23, laser engraving mark; 3, laser engraving detection station; 31, magnetic display detection Camera; 32. Laser engraving machine; 33. Magnetic display detection board; 331. Self-resetting magnetic display sheet; 34. Lifting cylinder; 4. Laser engraving detection and throwing station; 41. Laser engraving detection camera; 42. Throwing module; 421. Iron parts; 422. Non-magnetic plate; 5. Unloading station; 51. Unloading transfer module; 52. Tray transfer module; 521. Suction cup; 53. Swing plate module; 54. Finished product basket; 55. Tray basket; 56. Partition basket; 6. Conveying assembly; 61. Downstream conveyor belt; 62. Return conveyor belt; 63. Flow fixture; 64. Flow transfer module; 7. Y-axis moving mechanism; 8. Z-axis moving mechanism. DETAILED DESCRIPTION

[0058] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0059] like Figure 5-22 As shown, the present invention provides a size control device for obliquely oriented bipolar magnetizing magnets, comprising a loading station 1, a magnetizing station 2, a laser engraving detection station 3, a laser engraving detection and throwing station 4, an unloading station 5, and a conveying component 6 arranged on all the above stations, wherein the conveying component 6 is arranged along the X-axis direction, the X-axis direction described in the present invention is the left-right direction, the Y-axis direction is the front-back direction, and the Z-axis direction is the up-down direction.

[0060] Key References Figure 5-9The feeding station 1 is provided with a feeding component, a magnetic deflection detection platform 14, a magnetic deflection detection camera 15 and a reversing module 16. The feeding component includes a vibration plate 11, a feeding transfer plate 12 and a feeding transfer module 13. The vibration plate 11 is connected to the feeding transfer plate 12. After the unmagnetized magnet is placed in the vibration plate 11, the vibration of the vibration plate 11 will send the magnet to the feeding transfer plate 12; the feeding transfer module 13 is arranged on one side of the feeding transfer plate 12 and the magnetic deflection detection platform 14. The feeding transfer module 13 is specifically a Y-axis direction. A movable module is arranged on it, on which a Y-axis movable mechanism 7 is arranged, on which a Z-axis movable mechanism 8 is arranged, on which a suction piece for adsorbing magnets is arranged, and the suction piece is located above the loading transfer plate 12 and the magnetic deflection angle detection platform 14. The suction piece can move the magnet on the loading transfer plate 12 to the magnetic deflection angle detection platform 14 through the driving of the Y-axis movable mechanism 7 and the Z-axis movable mechanism 8. The suction piece is preferably a vacuum suction cup group 131, which can move multiple magnets on the loading transfer plate 12 to the magnetic deflection angle detection platform 14 at one time.

[0061] A permanent magnet assembly and a lifting cylinder 141 for driving the permanent magnet assembly to rise and fall are provided below the magnetic deflection detection platform 14. The permanent magnet assembly has a magnetic field. Although the unmagnetized magnet has no magnetism, its magnetic orientation is fixed. When the lifting cylinder 141 drives the permanent magnet assembly to rise to approach the magnet, the magnetic field strength of the permanent magnet assembly is sufficient to affect the magnet. Since the magnetic orientation of the magnet is an oblique orientation, the magnet will stand up along its own magnetic deflection direction, as shown in 8. If the magnetic deflection direction of the magnet is to the left, the left side of the magnet faces upward and the right side faces downward, and the direction of the magnetic deflection is opposite to the right. According to the direction in which the magnet stands up, the magnetic deflection direction of the magnet and whether the magnetic deflection direction is reversed can be judged. The positive and negative directions of the magnetic deflection direction can be set by the operator. For example, if the left side is set as the positive direction of the magnetic sheet angle, the right side is the reverse direction of the magnetic deflection. Similarly, the positive and negative directions of the magnetic deflection direction are set to facilitate the alignment of all magnets, that is, to set the magnetic deflection of all magnets to the same direction. When the permanent magnet assembly descends away from the magnet, the erected magnet falls back.

[0062] The permanent magnet assembly is a permanent magnet or other component that can provide a magnetic field with a magnetic field strength sufficient to allow the magnet to stand up, preferably a permanent magnet. The shape of the permanent magnet can be rectangular, circular or other shapes, which is not limited in this case. In a preferred embodiment, the permanent magnet assembly is a circular magnet string 142 vertically arranged on the lifting cylinder 141. The number of circular magnet strings 142 is set according to the number of magnets. Multiple circular magnet strings 142 are arranged side by side on the lifting cylinder 141 at intervals, and a magnet is placed above each circular magnet string 142. The diameter of the circular magnet string 142 is 10mm and the length is 30mm. The magnetic field strength of the circular magnet string 142 of this size can stand up a non-magnetic magnet, and the 10mm diameter of the circular magnet string 142 will not cause adjacent circular magnet strings 142 to interfere with each other.

[0063] The magnetic declination detection camera 15 is located on one side of the Y-axis direction of the magnetic declination detection platform 14, specifically on the left side. After the magnet is erected, the magnetic declination detection camera 15 can take a picture of the magnet at one end of the magnet, so as to determine the magnetic declination direction of the magnet and store the judgment result. After taking the picture, the lifting cylinder 141 drives the permanent magnet assembly to descend away from the magnet, and the magnet is separated from the influence of the magnetic field of the permanent magnet assembly and falls back from the erected state to a horizontal state.

[0064] like Figure 7 As shown, the reversing module 16 is also a moving module, which is also provided with a Y-axis moving mechanism 7 and a Z-axis moving mechanism 8. A rotating motor 161 is provided on the Z-axis moving mechanism 8. A vacuum suction cup 162 for adsorbing magnets is provided at the bottom of the rotating motor 161. The vacuum suction cup 162 is located above the magnetic declination detection platform 14. Driven by the Y-axis moving mechanism 7, the Z-axis moving mechanism 8 and the rotating motor 161, the vacuum suction cup 162 can horizontally rotate the magnet with the opposite magnetic declination by 180° and put it back to its original position according to the detection result of the magnetic declination detection camera 15. After the magnet with the opposite magnetic declination is horizontally rotated by 180°, its magnetic declination direction is turned to the positive direction.

[0065] The magnetic deflection detection camera 15, magnetic deflection detection platform 14, reversing module 16 and vibration plate 11 are all located on the left side of the loading and transferring module 13. The loading and transferring module 13 is located above the conveying component 6. After the magnet is aligned, the loading and transferring module 13 places the magnet on the magnetic deflection detection platform 14 into the flow fixture 63, and the conveying component 6 sends the magnet to the magnetizing station 2.

[0066] like Fig.10As shown, the magnetizing station 2 is provided with a magnetizing component, and the magnetizing component includes a magnetizing transfer module 21 and a magnetizing mechanism 22. The structure of the magnetizing transfer module 21 is the same as that of the loading transfer module 13. The magnetizing transfer module 21 is arranged along the Y axis and is located above the conveying component 6. The magnetizing mechanism 22 is located below the vacuum suction cup group 131 on the magnetizing transfer module 21, and is located at the front side of the conveying component 6. The number of magnetizing mechanisms 22 and magnetizing transfer modules 21 can be set as needed. The magnetizing transfer module 21 is used to place the magnet on the conveying component 6 into the magnetizing mechanism 22 for magnetization, and put the magnetized magnet back into the conveying component 6, and the conveying component 6 then sends the magnet to the detection laser engraving station 3.

[0067] like Fig.11 As shown, the magnetizing mechanism 22 includes a magnetizing pole head 221 and a magnetizing fixture plate 222. Figure 1 The jig plates in the same structure are all fixed with elastic rear positioning rods to fix the magnets. After the magnetic deflection angle detection and reversing steps before magnetization, the magnetic deflection angle directions of all magnets on the magnetization jig plate 222 are the same, so that the magnets after magnetization not only have the same magnetic deflection angle directions, but also the same positions of the control dimensions, so as to achieve strict control of the control dimensions and improve the yield rate. There are sufficient intervals between the multiple magnets on the magnetization jig plate 222, so that the magnets after magnetization will not affect each other.

[0068] Key References Figure 12-14 The detection laser engraving station 3 is provided with a magnetic detection camera 31 and a laser engraving machine 32. The magnetic detection camera 31 is located above the conveying component 6, and a magnetic detection plate 33 is provided between the conveying component 6. The conveying component 6 is provided with a flow fixture 63 for loading magnets. The flow fixture 63 moves along the X-axis to convey the magnet. The magnetic detection plate 33 is arranged between the magnetic detection camera 31 and the flow fixture 63. A self-resetting magnetic display sheet 331 is provided on the magnetic detection plate 33. The conveying component 6 is below the magnetic detection plate 33. A lifting cylinder 34 is provided to drive the magnet to rise and fall, that is, a lifting cylinder 34 is provided under the flow fixture 63. When the flow fixture 63 moves to the bottom of the magnetic detection plate 33, the lifting cylinder 34 pushes the flow fixture 63 up to be embedded on the magnetic detection plate 33, so that the magnet is close to the self-resetting magnetic display sheet 331. The magnetic field of the magnet can be visualized by the self-resetting magnetic display sheet 331, and then the magnetic detection camera 31 is used to take a picture of the magnetic display result to obtain the magnetic field distribution of the magnet. Since the left and right magnetic field distributions of the obliquely oriented magnets are asymmetric, for example Fig.15 , the magnetic declination direction of the magnet is to the left, which is the correct magnetic declination direction. Fig.16The magnetic disk angle direction of the magnet is to the right, which is the opposite direction of the magnetic declination. After determining whether the magnetic declination direction is correct, the magnetic detection camera 31 stores the judgment result. The laser engraving machine 32 is located on one side of the magnetic detection camera 31, specifically on the right side of the magnetic detection camera 31. After detecting whether the magnetic declination direction of the magnetized magnet is correct, the lifting cylinder 141 drives the flow fixture 63 to descend and reset, and the conveying component 6 conveys the magnet to the laser engraving machine 32. The laser engraving machine 32 performs laser engraving on the control size position of the magnet with the correct magnetic declination direction according to the judgment result of the magnetic detection camera 31. The magnet with incorrect magnetic declination is not laser engraved. The laser engraving mark 23 can be any shape that is easy to identify, such as Figure 2 and Figure 4 The circular mark at the N pole of the magnet shown in the figure can easily identify the position of the control size through the laser engraving mark 23, and is also convenient for the subsequent sampling inspection of the finished product. After laser engraving, the conveying component 6 conveys the magnet to the laser engraving detection and throwing station 4.

[0069] Key References Figure 17-19 The laser engraving detection and throwing station 4 is provided with a laser engraving detection camera 41 and a throwing module 42. The laser engraving detection camera 41 is located above the conveying component 6 to take pictures of the laser engraved surface of the magnet to detect whether the magnet has a laser engraving mark 23 and whether the laser engraving mark 23 is correct and complete, and then store the detection results. The throwing module 42 is arranged on one side of the laser engraving detection camera 41, specifically on the right side. The throwing module 42 can throw the magnet with poor laser engraving or no laser engraving according to the detection result of the laser engraving detection camera 41. The throwing module 42 is a moving module, on which a Y-axis moving mechanism 7 is provided. The Y-axis moving mechanism 7 is provided There are multiple Z-axis moving mechanisms 8, each of which is provided with an iron piece 421 for adsorbing magnets. A non-magnetic plate 422 is provided below the Z-axis moving mechanism 8. The iron piece 421 can be an iron column, which is passed through the non-magnetic plate 422. The non-magnetic plate 422 is a non-magnetic plate. Since the magnet has magnetism after being magnetized, if a vacuum suction cup is used to adsorb the magnet, the suction force of the vacuum suction cup is not enough to keep the magnet in position, so the iron piece 421 can be used for adsorption. When the iron piece 421 descends and approaches the magnet, the magnet can be adsorbed by the magnetism of the magnet. When the iron piece 421 rises to the top of the non-magnetic plate 422 and away from the magnet, the magnet separates from the iron piece 421 and is thrown off. The number of iron pieces 421 can be set according to the number of magnets. For example, four magnets can be placed on a flow fixture 63, and four iron pieces 421 are provided corresponding to the position of each magnet, and each iron piece 421 can be raised and lowered individually to absorb the defective magnets at the corresponding position and discard the materials. After the discarding operation is completed, the conveying component 6 conveys the magnets to the unloading station 5.

[0070] Key References Figure 20-22The unloading station 5 is provided with an unloading component, which includes an unloading transfer module 51, a tray transfer module 52, a swing plate module 53, a finished material basket 54, a tray basket 55 and a partition basket 56. The tray transfer module 52 is arranged on one side of the unloading transfer module 51 and the conveying component 6, specifically on the right side. The swing plate module 53, the finished material basket 54, the tray basket 55 and the partition basket 56 are arranged side by side along the length direction of the tray transfer module 52, specifically along the Y-axis direction and side by side between the tray transfer module 52 and the unloading transfer module 51. The swing plate module 53 reciprocates between the tray transfer module 52 and the unloading transfer module 51, that is, it reciprocates along the X-axis direction. The structure of the material unloading and transfer module 51 is similar to that of the material throwing module 42, and is also provided with an iron piece 421 and a non-magnetic plate 422. The difference is that a group of iron pieces 421 are used to adsorb magnets, which are driven by a Z-axis moving mechanism 8, and can adsorb all magnets on the flow fixture 63 at the same time. The material unloading and transfer module 51 can place the magnets transferred by the conveying component 6 on the material tray of the swing plate module 53. When the material tray is full, the swing plate module 53 moves to the bottom of the material tray transfer module 52, and the material tray transfer module 52 is also provided with a Y-axis moving mechanism. 7 and Z-axis moving mechanism 8, the Z-axis moving mechanism 8 is provided with a suction cup 521 for adsorbing the material tray and the partition, the material tray transfer module 52 first stacks the material trays on the swing plate module 53 in the finished product basket 54, and then grabs an empty material tray from the material tray basket 55 to the swing plate module 53, the swing plate module 53 moves to the bottom of the unloading transfer module 51 to continue the swing plate action, at the same time, the material tray transfer module 52 grabs the partition in the partition basket 56 to the magnet in the finished product basket 54, so as to avoid the mutual adsorption of the magnets of the two adjacent stacked trays.

[0071] As a preferred embodiment, the loading station 1, the magnetizing station 2, the detection laser engraving station 3, the laser engraving detection throwing station 4 and the unloading station 5 are arranged side by side along the X-axis direction, and are connected to each other through a transmission component 6. The loading station 1 is located at the leftmost position as the upstream end, and the unloading station 5 is located at the rightmost position as the downstream end. The operation of all the above-mentioned tools is controlled by a control system. The conveying assembly 6 includes a downstream conveyor belt 61, a return conveyor belt 62, a flow fixture 63 and a flow transfer module 64. The downstream conveyor belt 61 is arranged below the loading transfer module 13, the magnetizing transfer module 21, the magnetic display detection camera 31, the laser engraving machine 32, the laser engraving detection camera 41, the throwing module 42 and the unloading transfer module 51. The return conveyor belt 62 is arranged side by side on one side of the downstream conveyor belt 61 along the Y-axis direction, specifically at the rear side of the downstream conveyor belt 61. In order to save space, the magnetic deflection detection platform 14 and the magnetic deflection detection camera 15 can be arranged between the downstream conveyor belt 61 and the return conveyor belt 62. The flow fixture 63 is arranged on the return conveyor belt 62 and the downstream conveyor belt 61. The downstream conveyor belt 61 and the return conveyor belt 62 convey along the X-axis direction. The conveying directions of the two are opposite. The downstream conveyor 61 conveys the conveyor 63 loaded with magnets to the right, and the return conveyor 62 conveys the empty conveyor 63 to the left. A conveyor transfer module 64 arranged along the Y-axis direction is respectively arranged at both ends of the downstream conveyor 61 and the return conveyor 62. The conveyor transfer module is also provided with a Y-axis moving mechanism 7 and a Z-axis moving mechanism 8. The Z-axis moving mechanism 8 is provided with a clamp for grabbing the conveyor 63. The conveyor transfer module 64 at the left end transports the conveyor 63 on the return conveyor 62 to the downstream conveyor 61, and the conveyor transfer module 64 at the right end transports the empty conveyor 63 after unloading on the downstream conveyor 61 to the return conveyor 62, so as to realize the recycling of the conveyor 63.

[0072] The present invention transmits magnets through the transmission component 6, and carries out the transportation of magnets through the loading transfer module 13, the magnetizing transfer module 21, the throwing module 42, the unloading transfer module 51 and the tray transfer module 52, so as to realize full-automatic detection, reversing, magnetizing, laser engraving, tray stacking and other operations with high work efficiency. The whole process only needs to load the magnets into the vibration plate 11 and replace the empty finished product basket 54 after the stacking is full, which greatly saves labor costs.

[0073] The present invention also provides a method for controlling the size of an obliquely oriented bipolar magnet, comprising the following steps:

[0074] S1. Place the unmagnetized magnets into the vibration plate 11. The vibration plate 11 vibrates to send the magnets into the loading transfer plate 12. The loading transfer module 13 places the magnets on the loading transfer plate 12 onto the magnetic deflection angle detection platform 14. The magnets correspond to the positions of the permanent magnet components below the magnetic deflection angle detection platform 14. Specifically, the loading transfer module 13 can carry four magnets at a time. The permanent magnet components include four circular magnet strings 142. Each magnet corresponds to the position of a circular magnet string 142.

[0075] S2, the lifting cylinder 141 drives the permanent magnet assembly to rise to get closer to the magnet. Each magnet is respectively affected by the magnetic field of the circular magnet string 142 below it and stands up along its own magnetic declination direction. The magnetic declination detection camera 15 takes a picture of the standing magnet at one end of the magnet to determine the direction of the magnetic declination and stores the judgment result.

[0076] S3. After determining the direction of the magnetic declination, the lifting cylinder 141 drives the permanent magnet assembly to descend to move away from the magnet, causing the erected magnet to fall back. The reversing module 16 drives the vacuum suction cup 162 thereon to horizontally rotate the magnet with the opposite magnetic declination by 180° according to the determination result of the magnetic declination detection camera 15, and then puts the magnet back to its original position, thereby correcting the direction of the magnetic declination of the magnet.

[0077] S4, the loading and transfer module 13 places the aligned magnet on the conveying component 6, that is, on the flow fixture 63 of the downstream conveyor belt 61, and the downstream conveyor belt 61 transfers the magnet to the magnetizing station 2, and the magnetizing transfer module 21 places the magnet on the conveying component 6 on the magnetizing fixture plate 222 of the magnetizing mechanism 22 for magnetization. After magnetization, the magnetizing transfer module 21 puts the magnet back on the flow fixture 63 of the downstream conveyor belt 61.

[0078] S5. The downstream conveyor belt 61 conveys the magnet to the detection laser engraving station 3. When the magnet is conveyed to the bottom of the magnetic detection plate 33, the lifting cylinder 34 under the magnetic detection plate 33 drives the flow fixture 63 to rise to be embedded on the magnetic detection plate 33, so that its magnet is close to the self-resetting magnetic display sheet 331. The magnetic detection camera 31 takes a picture of the magnet to determine whether the magnetic declination direction of the magnet is correct, and stores the judgment result.

[0079] S6. After determining whether the direction of the magnetic declination is correct, the lifting cylinder 34 drives the flow fixture 63 to descend, and the downstream conveyor belt 61 then conveys the magnet to the bottom of the laser engraving machine 32. The laser engraving machine 32 performs laser engraving on the control size position of the magnet with the correct magnetic declination direction according to the judgment result of the magnetic display detection camera 31, and does not perform laser engraving on the magnet with incorrect magnetic declination.

[0080] S7, after laser engraving, the downstream conveyor belt 61 then conveys the magnet to the laser engraving detection and throwing station 4. Below the laser engraving detection camera 41, the laser engraving detection camera 41 takes a picture of the laser engraved surface of the magnet to detect whether the magnet is laser engraved and whether the laser engraving is complete and correct, and stores the detection results;

[0081] S8. After the laser engraving inspection, the downstream conveyor belt 61 conveys the magnets to the material throwing module 42. The material throwing module 42 throws away the magnets with poor laser engraving or no laser engraving according to the inspection result of the laser engraving inspection camera 41.

[0082] S9, after throwing, the downstream conveyor belt 61 conveys the magnets that have passed the laser engraving to the unloading station 5, and the unloading transfer module 51 grabs the magnets on the flow fixture 63 and places them on the material tray of the plate placing module 53. The flow fixture 63 after the magnet is grabbed is grabbed by the flow transfer module 64 and placed on the return conveyor belt 62, and then flows back to the loading station 1, and is grabbed by another flow transfer module 64 and placed on the downstream conveyor belt 61, so as to realize the recycling of the flow fixture 63; when the magnet is full, After the material tray is loaded, the tray setting module 53 moves to the bottom of the tray transfer module 52, and the tray transfer module 52 stacks the trays filled with magnets in the finished product basket 54, and then grabs the empty trays from the tray basket 55 to the tray setting module 53, and the tray setting module 53 moves to the bottom of the unloading transfer module 51 to continue the tray setting action. At the same time, the tray transfer module 52 grabs the partition from the partition basket 56 to the finished product basket 54 to avoid the mutual adsorption of two adjacent trays of magnets, and all steps are completed.

[0083] The above description is only a preferred embodiment of the present invention and is not a limitation on the design of this case. Any equivalent changes made based on the design key of this case shall fall within the protection scope of this case.

Claims

1. A device for controlling the size of obliquely oriented bipolar magnets, characterized in that: It includes a loading component, a magnetic deflection detection platform, a magnetic deflection detection camera, a reversing module, a magnetizing component, a unloading component, and a conveying component; The feeding assembly includes a vibration plate, a feeding transfer plate and a feeding transfer module, wherein the vibration plate is connected to the feeding transfer plate to feed the magnet onto the feeding transfer plate, and the feeding transfer module is arranged on one side of the feeding transfer plate and the magnetic deflection angle detection platform to place the magnet on the feeding transfer plate onto the magnetic deflection angle detection platform; A permanent magnet assembly and a lifting cylinder for driving the permanent magnet assembly to rise and fall are provided below the magnetic declination detection platform. When the permanent magnet assembly rises and approaches the magnet, the magnet is acted upon by the magnetic field of the permanent magnet assembly and stands up along the direction of its own magnetic declination. When the permanent magnet assembly falls and moves away from the magnet, the standing magnet falls back. The magnetic declination detection camera is located at one end of the magnet and takes pictures of the erected magnet to determine the direction of the magnetic declination, and stores the determination result; The reversing module is provided with a vacuum chuck above the magnetic deflection angle detection platform for horizontally rotating the magnet with the reverse magnetic deflection angle and returning it to its original position; The magnetizing component includes a magnetizing transfer module and a magnetizing mechanism. The conveying component is arranged below the loading transfer module, the magnetizing transfer module and the unloading component. The magnetizing mechanism is arranged below the magnetizing transfer module. The loading transfer module places the magnet with the correct magnetic declination direction on the conveying component. The magnetizing transfer module places the magnet on the conveying component on the magnetizing mechanism for magnetization and puts the magnetized magnet back into the conveying component. The unloading component unloads the magnetized magnet.

2. A device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 1, characterized in that: The permanent magnet assembly is a circular magnet string vertically arranged on the lifting cylinder, and a plurality of circular magnet strings are arranged side by side at intervals on the lifting cylinder.

3. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 1, characterized in that: The reversing module is provided with a Y-axis moving mechanism and a Z-axis moving mechanism located on the Y-axis moving mechanism, the Z-axis moving mechanism is provided with a rotating motor, a vacuum suction cup is provided at the bottom of the rotating motor, the vacuum suction cup is located above the loading transfer plate and the magnetic deflection detection platform, and the rotating motor drives the vacuum suction cup to rotate horizontally.

4. A device for controlling the size of an obliquely oriented bipolar magnet as claimed in any one of claims 1 to 3, characterized in that: A magnetic detection camera and a laser engraving machine are also provided between the magnetizing component and the unloading component. The magnetic detection camera is located above the conveying component, and a magnetic detection plate is provided between the camera and the conveying component. A self-resetting magnetic plate is provided on the magnetic detection plate. The conveying component is provided with a lifting cylinder for driving the magnet to rise and fall below the magnetic detection plate. The laser engraving machine is located on one side of the magnetic detection camera to perform laser engraving on the controlled size position of the magnet.

5. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 4, characterized in that: A laser engraving detection camera and a material throwing module are also provided between the laser engraving machine and the unloading assembly. The laser engraving detection camera is located above the conveying assembly to take photos of the laser engraved surface of the magnet and store the detection results. The material throwing module is arranged on one side of the laser engraving detection camera to throw away magnets with poor laser engraving or no laser engraving according to the detection results of the laser engraving detection camera.

6. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 5, characterized in that: The throwing module is provided with a Y-axis moving mechanism and multiple Z-axis moving mechanisms located on the Y-axis moving mechanism, each Z-axis moving mechanism is provided with an iron piece for adsorbing a magnet, a non-magnetic plate is provided below the Z-axis moving mechanism, and the iron piece is passed through the non-magnetic plate.

7. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 5, characterized in that: The unloading component includes an unloading transfer module, a tray transfer module, a swing plate module, a finished material basket, a tray basket and a partition basket. The tray transfer module is arranged on one side of the unloading transfer module and the conveying component. The swing plate module, the finished material basket, the tray basket and the partition basket are arranged side by side between the tray transfer module and the unloading transfer module along the length direction of the tray transfer module. The swing plate module reciprocates between the tray transfer module and the unloading transfer module. The unloading transfer module places the magnet on the conveying component on the tray of the swing plate module. The tray transfer module is used to grab the tray and the partition in the partition basket.

8. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 7, characterized in that: The conveying component includes a downstream conveyor belt, a return conveyor belt, a flow fixture and a flow transfer module. The downstream conveyor belt is arranged below the loading transfer module, the magnetization transfer module, the magnetic display detection camera, the laser engraving machine, the laser engraving detection camera, the throwing module and the unloading transfer module. The return conveyor belt is arranged side by side on one side of the downstream conveyor belt along the Y-axis direction. The flow fixture is used to load magnets. The flow fixture is arranged on the return conveyor belt and the downstream conveyor belt. The downstream conveyor belt and the return conveyor belt transport the flow fixture along the X-axis direction, and the conveying directions of the two are opposite. A flow transfer module is respectively provided at both ends of the downstream conveyor belt and the return conveyor belt. The two flow transfer modules respectively grab the flow fixture to the downstream conveyor belt and the return conveyor belt.

9. The device for controlling the size of an obliquely oriented bipolar magnet as claimed in claim 8, characterized in that: The loading transfer module, magnetizing transfer module and unloading transfer module are all provided with a Y-axis moving mechanism and a Z-axis moving mechanism. The Z-axis moving mechanism is arranged on the Y-axis moving mechanism. The Z-axis moving mechanisms of the loading transfer module and the magnetizing transfer module are provided with a vacuum suction cup group for adsorbing multiple magnets. The Z-axis moving mechanism of the unloading transfer module is provided with iron pieces for adsorbing multiple magnets and a non-magnetic plate for the iron pieces to pass through.

10. A method for controlling the size of an obliquely oriented bipolar magnet, comprising the following steps: S1. Place the unmagnetized magnet into a vibration plate, and the vibration plate vibrates to send the magnet into a loading transfer plate. The loading transfer module places the magnet on the loading transfer plate onto a magnetic deflection angle detection platform, and the position of the magnet corresponds to the position of the permanent magnet assembly under the magnetic deflection angle detection platform. S2, the lifting cylinder drives the permanent magnet assembly to rise to approach the magnet, and the magnet is acted upon by the magnetic field of the permanent magnet assembly and stands up along its own magnetic declination direction. The magnetic declination detection camera takes a picture of the standing magnet at one end of the magnet to determine the direction of the magnetic declination, and stores the determination result; S3. After determining the direction of the magnetic declination, the lifting cylinder drives the permanent magnet assembly to descend to move away from the magnet, causing the erected magnet to fall back. The reversing module drives the vacuum suction cup on it to horizontally rotate the magnet with the reverse magnetic declination by 180° according to the determination result of the magnetic declination detection camera, and then puts the magnet back to its original position, so as to correct the magnetic declination direction of the magnet. S4, the loading and transporting module puts the aligned magnets on the conveying component, the conveying component transports the magnets to the magnetizing component, the magnetizing and transporting module puts the magnets on the conveying component on the magnetizing mechanism for magnetization, and after magnetization, the magnetizing and transporting module puts the magnets back on the conveying component; S5, the conveying assembly conveys the magnetized magnet to the bottom of the magnetic display detection board, the lifting cylinder under the magnetic display detection board drives the magnet to rise close to the self-resetting magnetic display plate, and the magnetic display detection camera takes a picture of the magnet to determine whether the magnetic declination direction of the magnet is correct, and stores the determination result; S6. The lifting cylinder drives the magnet down, and the conveying assembly then conveys the magnet to the laser engraving machine. The laser engraving machine performs laser engraving on the control size position of the magnet with the correct magnetic declination direction according to the judgment result of the magnetic display detection camera. The magnet with incorrect magnetic declination is not laser engraved. S7. After laser engraving, the conveying component conveys the magnet to the laser engraving detection camera, which takes a photo of the laser engraving surface of the magnet and stores the detection results; S8. After the laser engraving inspection, the conveying component conveys the magnet to the throwing module. The throwing module throws away the magnets with poor laser engraving or no laser engraving according to the inspection results of the laser engraving inspection camera. S9. After throwing, the conveying component conveys the magnets that have passed the laser engraving to the unloading component. The unloading transfer module places the magnets on the tray of the tray module. After it is full, the tray module moves to the bottom of the tray transfer module. The tray transfer module stacks the trays full of magnets in the finished product basket, and then grabs the empty trays from the tray basket to the tray module. The tray module moves to the bottom of the unloading transfer module to continue the tray-stack action. At the same time, the tray transfer module grabs the partition from the partition basket to the finished product basket to avoid the mutual adsorption of two adjacent trays of magnets.

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