A device and method for magnet automatic magnetization, laser engraving and detection

Abstract

The application provides a magnet automatic magnetizing, laser engraving and detecting device and method, and relates to the technical field of magnet production. The device comprises a rack, a conveyor belt arranged on the rack, the conveyor belt comprising a feeding conveyor belt, an intermediate conveyor belt and a discharging conveyor belt, the feeding conveyor belt, the intermediate conveyor belt and the discharging conveyor belt corresponding in the first and last positions to form a circulating operation work area; an electrically controlled feeding unit, a stacking unit, a mechanical hand unit, a magnetizing unit, a separating unit, a laser engraving unit, a magnetic detection unit and a discharging unit are sequentially arranged along the conveying direction of the conveyor belt; a bakelite jig is provided with a magnet profiling groove, and the bakelite jig is conveyed through the conveyor belt; and a control unit is used to control the actions of each unit of the device. The technical scheme solves the technical problems in the prior art that the production process of the special-shaped single-stage oblique orientation magnet is complicated, the product stability is not high, and there is no automatic production equipment for the production of special-shaped single-stage oblique orientation magnets.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnet production, in particular to a device and method for automatic magnet charging, laser engraving and detection. BACKGROUND

[0002] At present, in the enterprises of magnet production, most of the special-shaped single-pole magnets are arranged into a magnet charging fixture by manual mode, and then the fixture is held by hand and placed in a positioning tool with the same angle as the magnetic direction of a magnet charging coil for charging, the process is complicated, the consistency of magnet charging by holding the fixture is poor, and the hands work in a strong magnetic field for a long time, which causes certain occupational hazards; the subsequent laser engraving, polarity detection and surface magnet detection need to be manually placed in the corresponding fixture and processed on the corresponding special machine.

[0003] In the process of implementing the technical solution, it is found that the prior art has the following defects:

[0004] 1. Each process needs a separate fixture and a special machine, the production process is complicated and labor-intensive.

[0005] 2. The hands work in a strong magnetic field for a long time, which causes certain occupational hazards.

[0006] 3. The production process is greatly related to the operator's skill, and the product stability is not high. SUMMARY

[0007] The purpose of the present application is to provide a device and method for automatic magnet charging, laser engraving and detection, to solve the technical problems that the production process of special-shaped single-stage inclined orientation magnets is complicated, the product stability is not high, and there is no flexible automatic production equipment for special-shaped single-stage inclined orientation magnets. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0008] To achieve the above-mentioned purpose, on the one hand, the present application provides a device for automatic magnet charging, laser engraving and detection, comprising:

[0009] A rack is provided with a conveyor belt, the conveyor belt includes a feeding conveyor belt, an intermediate conveyor belt and a discharging conveyor belt, and the feeding conveyor belt, the intermediate conveyor belt and the discharging conveyor belt correspondingly form a circulating operation work area;

[0010] An electrically controlled feeding unit, a stacking unit, a manipulator unit, a magnet charging unit, a separating unit, a laser engraving unit, a magnetic detection unit and a discharging unit are sequentially arranged along the conveying direction of the conveyor belt;

[0011] A bakelite jig is provided with a magnet profiling groove and a foolproof iron block, and the bakelite jig is conveyed by the conveyor belt;

[0012] A control unit is configured to control the actions of the conveying belt, the feeding unit, the stacking unit, the mechanical arm unit, the magnetizing unit, the separating unit, the laser engraving unit, the magnetic detection unit and the discharging unit.

[0013] In another aspect, the application provides a method for magnet automatic magnetizing, laser engraving and detection, which comprises the following steps:

[0014] Step 1: placing the magnet on the vibration disc of the feeding unit and starting the device through the control unit;

[0015] Step 2: placing the magnet on the feeding conveying belt in the bakelite jig positioned at the feeding station through the feeding unit;

[0016] Step 3: sending the bakelite jig with the magnet to the stacking unit through the feeding conveying belt for stacking;

[0017] Step 4: grabbing the stacked bakelite jig through the mechanical arm unit, rotating the bakelite jig to make the orientation of the magnet consistent with the magnetizing direction of the magnetizing coil in the magnetizing unit, and then placing the bakelite jig in the magnetizing coil for magnetizing;

[0018] Step 5: after the magnetizing is completed, placing the bakelite jig with the magnetized magnet in the separating unit through the mechanical arm unit, and placing the bakelite jig on the intermediate conveying belt through the separating unit;

[0019] Step 6: laser engraving the magnet in the bakelite jig positioned at the laser engraving station on the intermediate conveying belt through the laser engraving unit;

[0020] Step 7: performing surface magnetism detection on the magnet in the bakelite jig positioned at the detection station on the intermediate conveying belt through the magnetic detection unit, and conveying the bakelite jig with the qualified magnet to the discharging station;

[0021] Step 8: discharging the magnet in the bakelite jig through the discharging unit, and then placing the bakelite jig back on the discharging conveying belt and conveying it to the feeding conveying belt.

[0022] The technical solution of the application can have the following beneficial effects:

[0023] The application provides a magnet automatic magnetizing, laser engraving and detecting device and method. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0025] Figure 1 Fig. 1 is a structural schematic diagram of a magnet automatic magnetizing, laser engraving and detecting device according to an embodiment of the present application;

[0026] Figure 2 Fig. 2 is a structural schematic diagram of a feeding unit according to an embodiment of the present application;

[0027] Figure 3 Fig. 3 is a structural schematic diagram of a stacking unit according to an embodiment of the present application;

[0028] Figure 4 Fig. 4 is a structural schematic diagram of a mechanical hand unit and a magnetizing unit in a magnetizing state according to an embodiment of the present application;

[0029] Figure 5 Fig. 5 is a structural schematic diagram of a mechanical hand gripper according to an embodiment of the present application;

[0030] Figure 6 Fig. 6 is a structural schematic diagram of a mounting bottom plate in a magnetizing unit according to an embodiment of the present application;

[0031] Figure 7 Fig. 7 is a structural schematic diagram of a magnetic detection unit according to an embodiment of the present application;

[0032] Figure 8 Fig. 8 is a structural schematic diagram of a discharging unit according to an embodiment of the present application;

[0033] Figure 9 Fig. 9 is a sectional structural schematic diagram of a bakelite jig according to an embodiment of the present application.

[0034] In the figure: 101, feeding conveying belt; 102, intermediate conveying belt; 103, discharging conveying belt; 104, feeding positioning mechanism; 105, stacking positioning mechanism; 106, laser engraving positioning mechanism; 107, detection positioning mechanism; 108, discharging positioning mechanism; 109, discharging pushing block; 1010, feeding pushing block; 2, feeding unit; 201, vibration disc; 202, magnet transmission groove; 203, positioning module; 204, magnet positioning block; 205, feeding negative pressure suction nozzle; 206, feeding Z1 cylinder; 207, feeding Z2 cylinder; 208, feeding Y cylinder; 3, stacking unit; 301, jig stacking guide groove; 302, stacking jig clamping cylinder; 303, stacking jacking Z1 cylinder; 304, stacking jacking Z2 cylinder; 4, manipulator unit; 401, manipulator; 402, manipulator clamping jaw; 5, magnetizing unit; 501, magnetizing coil; 502, mounting bottom plate; 5021, anti-eddy current groove; 6, stacking unit; 7, laser engraving unit; 8, magnetic detection unit; 801, linear Hall element; 802, linear Hall element mounting block; 803, height adjusting cylinder; 9, discharging unit; 901, discharging negative pressure suction nozzle; 902, discharging Z-axis cylinder; 903, Z-axis buffer spring; 904, Z-axis guide rail slider; 905, X-direction moving module; 906, receiving disc; 907, Y-direction moving module; 10, bakelite jig; 1001, magnet profiled groove; 1002, foolproof iron block; 11, magnet. DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0036] Figure 1 is a structural schematic diagram of a magnet automatic magnetizing, laser engraving and detecting device according to an embodiment of the present application, as shown in Figure 1

[0037] ​The application provides a magnet automatic magnetizing, laser engraving and detecting device, which comprises a rack, a conveying belt arranged on the rack, the conveying belt comprising a feeding conveying belt 101, an intermediate conveying belt 102 and a discharging conveying belt 103, the feeding conveying belt 101, the intermediate conveying belt 102 and the discharging conveying belt 103 corresponding to each other to form a circulating operation work area, an electrically controlled feeding unit 2, a stacking unit 3, a mechanical hand unit 4, a magnetizing unit 5, a separating unit 6, a laser engraving unit 7, a magnetic detecting unit 8 and a discharging unit 9 arranged in sequence along the conveying direction of the conveying belt, an electric wood jig 10 provided with a magnet profiling groove 1001 and a foolproof iron block 1002, the electric wood jig 10 being conveyed by the conveying belt, and a control unit used for controlling the actions of the conveying belt, the feeding unit 2, the stacking unit 3, the mechanical hand unit 4, the magnetizing unit 5, the separating unit 6, the laser engraving unit 7, the magnetic detecting unit 8 and the discharging unit 9.

[0038] Specifically, the control unit is provided with a touch screen and various control buttons such as a start button, a reset button, a pause button and an emergency stop button, the control unit is used for controlling the automatic operation of the work units arranged in each link of the magnet manufacturing process, and a conveying belt is arranged to circularly connect each work station, so that the magnet manufacturing process is realized by automatic mechanical operation, and various problems caused by manual operation are solved. Optionally, the control unit adopts a Mitsubishi FX5U-80MT / ES as a driving controller.

[0039] As an optional embodiment, the head end of the discharging conveying belt 103 is arranged in the vertical direction of the tail end of the intermediate conveying belt 102, and the head end of the feeding conveying belt 101 is arranged in the vertical direction of the tail end of the discharging conveying belt 103; the feeding conveying belt 101 is provided with a feeding positioning mechanism 104 corresponding to the work station of the feeding unit 2, and the feeding conveying belt 101 is provided with a stacking positioning mechanism 105 corresponding to the corresponding position of the stacking unit 3; the intermediate conveying belt 102 is provided with a laser engraving positioning mechanism 106 corresponding to the work station of the laser engraving unit 7, the intermediate conveying belt 102 is provided with a detecting positioning mechanism 107 corresponding to the work station of the magnetic detecting unit 8, and the intermediate conveying belt 102 is provided with a discharging pushing block 109 corresponding to the head end of the discharging conveying belt 103; the discharging conveying belt 103 is provided with a discharging positioning mechanism 108 corresponding to the work station of the discharging unit 9, and the discharging conveying belt 103 is provided with a feeding pushing block 1010 corresponding to the head end of the feeding conveying belt 101.

[0040] Specifically, corresponding positioning mechanisms are arranged at the work stations of the respective units, and the positioning mechanisms are arranged according to the position of each work station by means of a jig blocking cylinder, a jig positioning cylinder, a pin positioning top block, a positioning block, a jig flow interlocking blocking cylinder and a fiber sensor.

[0041] As shown in Figure 2 , as an optional embodiment, the feeding unit 2 comprises a vibrating disc 201, a magnet positioning block 204, a positioning module 203, a feeding negative pressure suction nozzle 205 and a feeding cylinder, the vibrating disc 201 is connected with a magnet transmission groove 202, the end of the magnet transmission groove 202 is connected with the magnet positioning block 204, the magnet positioning block 204 is arranged on the positioning module 203, and the feeding negative pressure suction nozzle 205 is connected with the feeding cylinder.

[0042] Specifically, the feeding cylinder comprises a feeding Z1 cylinder, a feeding Y cylinder and a feeding Z1 cylinder arranged in each movement direction of the feeding negative pressure suction nozzle 205, and the feeding negative pressure suction nozzle 205 adopts a silica gel suction nozzle.

[0043] As shown in Figure 3 , as an optional embodiment, the stacking unit 3 comprises a jig stacking guide groove 301, a stacking lifting cylinder and a stacking jig clamping cylinder 302, the jig stacking guide groove 301 is arranged above the tail end of the feeding conveying belt 101, the stacking lifting cylinder is arranged below the jig stacking guide groove 301, the number of the stacking jig clamping cylinder 302 is two, and the two stacking jig clamping cylinders 302 are arranged on the two sides of the jig stacking guide groove 301 respectively.

[0044] Specifically, the jig stacking guide groove 301 is arranged above the tail end of the feeding conveying belt 101, the stacking lifting cylinder comprises a stacking lifting Z1 cylinder 303 and a stacking lifting Z2 cylinder 304, the stacking lifting Z1 cylinder 303 lifts the bakelite jig 10 from the feeding conveying belt 101, and the stacking lifting Z2 cylinder 304 lifts the lifted bakelite jig 10 to the clamping position of the stacking jig clamping cylinder 302.

[0045] As shown in Figure 4 , 5 , as an optional embodiment, the mechanical hand unit 4 comprises a mechanical hand 401 and a mechanical hand clamping jaw 402 connected with the mechanical hand 401, the clamping position of the mechanical hand clamping jaw 402 is arranged with a certain offset r from the connection position of the mechanical hand clamping jaw 402 and the mechanical hand 401, and the mechanical hand clamping jaw 402 is made of a non-metallic material. Optionally, the mechanical hand unit 4 adopts a Dazhu E05, the maximum load is 5 kg, and the arm span is 800 mm.

[0046] Specifically, the clamping position of the mechanical hand gripper 402 and the connection position of the mechanical hand 401 and the gripper 402 have a certain offset r, which avoids the mechanical hand being directly above the magnetizing coil 501 when the magnetizing coil 501 discharges, thereby reducing the influence of the annular magnetic field generated by the magnetizing coil 501 on the mechanical hand 401. At the same time, the mechanical hand gripper 402 and the connecting screws thereon are made of non-metallic materials, for example, the gripper is made of bakelite or polyether ether ketone PEEK material, and the connecting screws are made of nylon screws, which effectively avoids the impact of the diamagnetic counterforce generated in the magnetizing coil 502 on the mechanism strength of the mechanical hand 401.

[0047] As shown in Figure 5 , Figure 6 , as an optional implementation, the magnetizing unit 5 includes a magnetizing coil 501 and a mounting base plate 502, the magnetizing coil 501 is mounted on the mounting base plate 502, and the mounting base plate 502 is provided with an anti-eddy current groove 5021.

[0048] Specifically, the magnetizing coil 501 is mounted on the mounting base plate 502 with the anti-eddy current groove 5021, which effectively avoids the influence of the eddy current generated on the mounting base plate 502 when the magnetizing coil 501 discharges. The magnetizing unit 5 further includes a magnetizing machine and a cold water machine. Optionally, the magnetizing machine, the cold water machine and the magnetizing coil are made of Ningbo Xinglong KCJ-30M, and the central magnetic field can reach above 3T.

[0049] As an optional implementation, the stack separating unit 6 includes a jig stack separating guide groove, a stack separating lifting cylinder and a stack separating jig clamping cylinder, the jig stack separating guide groove is arranged above the first end of the intermediate conveying belt, the stack separating lifting cylinder is arranged below the jig stack separating guide groove, the number of the stack separating jig clamping cylinder is two, and the two stack separating jig clamping cylinders are arranged on the two sides of the jig stack separating guide groove. Specifically, the stack separating unit 6 is installed above the first end of the intermediate conveying belt 102, and its structure is consistent with that of the stack unit 5, which is used to place the magnetized bakelite jig 10 on the intermediate conveying belt 102 in order.

[0050] As shown in Figure 7 , as an optional implementation, the magnetic detection unit 8 includes a height adjusting cylinder 803, a linear Hall element mounting block 802 and a linear Hall element 801, the linear Hall element mounting block 802 is mounted below the height adjusting cylinder 803, and the linear Hall element 801 is mounted below the linear Hall element mounting block 802.

[0051] Specifically, the height adjusting cylinder 803 is provided with a linear Hall element mounting block 802, and the linear Hall element mounting block 802 is provided with a linear Hall element 801. The linear Hall element 801 needs to be leveled and aligned during installation, so as to ensure the accuracy of the surface magnetic detection of the magnetic detection unit 8. The linear Hall element 801 is used to quantitatively judge the polarity and surface magnetism of the magnet 11 after magnetization.

[0052] As shown in Figure 8 As an optional embodiment, the discharging unit 9 includes a discharging Z-axis cylinder 902, a discharging negative pressure suction nozzle 901, an X-direction moving module 907, a Y-direction moving module 905, and a receiving disc 906. The Z-axis cylinder 902 is arranged on the Y-direction moving module 907, and a Z-axis buffer spring 903 is arranged between the Z-axis cylinder 902 and the Y-direction moving module 907. The lower end of the Z-axis cylinder 902 is connected with the discharging negative pressure suction nozzle 901. The receiving disc 906 is arranged on the X-direction moving module 907, and the receiving disc 906 is a rubber magnetic plate.

[0053] On the other hand, the application provides a magnet automatic magnetization, laser engraving and detection method. The magnet 11 is automatically magnetized, laser engraved and detected by the magnet automatic magnetization, laser engraving and detection device according to any one of the above.

[0054] Step one, place the magnet 11 on the vibrating disc 201 of the feeding unit 2, and start the device through the control unit;

[0055] Step two, place the magnet 11 on the feeding conveying belt 101 through the feeding unit 2, and position the magnet 11 in the bakelite jig 10 of the feeding station;

[0056] Step three, send the bakelite jig 10 with the magnet 11 to the stacking unit 3 through the feeding conveying belt 101 for stacking;

[0057] Step four, grab the stacked bakelite jig 10 through the mechanical hand unit 4, rotate the bakelite jig 10 to make the orientation of the magnet 11 consistent with the magnetization direction of the magnetization coil 501 in the magnetization unit 5, and then place the bakelite jig 10 in the magnetization coil 501 for magnetization;

[0058] Step five, after magnetization, place the bakelite jig 10 with the magnetized magnet 11 in the stacking unit through the mechanical hand unit 4, and place the bakelite jig 10 on the intermediate conveying belt 102 through the stacking unit 6;

[0059] Step six, laser engrave the magnet 11 in the bakelite jig 10 positioned in the laser engraving station on the intermediate conveying belt 102 through the laser engraving unit 7;

[0060] Step seven, the magnet 11 positioned in the bakelite jig 10 in the detection station on the intermediate conveying belt 102 is subjected to surface magnetic detection by the magnetic detection unit 8, and the bakelite jig 10 with the magnet 11 passing the detection is conveyed to the unloading station;

[0061] Step eight, the magnet 11 in the bakelite jig 10 is unloaded by the unloading unit 9, and then the bakelite jig 10 is put back to the unloading conveying belt 103 and conveyed to the feeding conveying belt 101.

[0062] Specifically, the device according to the present solution, the magnet manufacturing method comprises:

[0063] Operation preparation: the magnet to be magnetized is placed in the vibration disc, the equipment is powered on and ventilated, the magnetizing machine, the water chiller, the mechanical hand, the radium carving unit and the detection unit are started.

[0064] The reset button on the control panel is pressed, the servo motor is automatically reset to the initial position, and each cylinder is reset to the working origin. The start button is pressed, and the bakelite jig 10 is transferred to the feeding position by the feeding conveying belt 101. The vibration disc 201 arranges the non-magnetic material of the special-shaped magnet in the direction of the radium carving surface facing upward, and cooperates with the positioning module 203 to arrange the magnet into the magnet positioning block 204. The feeding Z1 cylinder 206 is extended, drives the feeding negative pressure suction nozzle 205 to contact the special-shaped magnet, the feeding negative pressure suction nozzle 205 works to suck up the special-shaped magnet, the feeding Z1 cylinder 206 is retracted, the feeding Y cylinder 208 acts to transfer the sucked magnet 11 to above the bakelite jig 10, the feeding Z2 cylinder 207 is extended to put the magnet 11 into the bakelite jig 10, the feeding negative pressure suction nozzle is disconnected, and the feeding Y cylinder 208 and the feeding Z2 cylinder 207 return to the initial position. The feeding conveying belt 101 conveys the bakelite jig 10 with the magnet 11 to the stacking unit 3.

[0065] The stacking unit stacking lifting Z1 cylinder 303 acts to lift the bakelite jig 10 into the stacking jig guide groove 301, the stacking jig clamping cylinder 302 is opened, the stacking lifting Z2 cylinder 304 lifts the bakelite jig 10 above the stacking jig clamping cylinder 302, and the stacking jig clamping cylinder 302 clamps the bakelite jig 10; the stacking lifting Z1 cylinder 303 and the stacking lifting Z2 cylinder 304 are reset, and the above actions are repeated to stack the jigs until the bakelite jigs 10 are stacked in the stacking jig guide groove 301.

[0066] The mechanical hand 4 drives the mechanical hand clamping jaw 402 to grab the stacked bakelite jig 10 with the magnet 11. The magnet orientation is rotated by an angle, so that the magnet orientation is consistent with the magnetizing direction of the magnetizing coil 501. Then the clamping jaw 402 puts the bakelite jig 10 with the magnet 11 without magnetic material into the magnetizing coil 501 together with the clamping jaw 402; the magnetizing coil 501 discharges to magnetize. The discharge magnetic field strength of the magnetizing coil 501 can be adjusted according to the voltage and capacitance of the magnetizing machine, and the central magnetic field adjustment range is 0-3T. The discharge times of the magnetizing coil 501 can also be set independently according to the requirements of the material magnetization. The clamping position of the mechanical hand clamping jaw 402 and the connection position of the mechanical hand 401 and the clamping jaw 402 have a certain offset r, so as to avoid the mechanical hand 401 being directly above the coil 501 when the coil discharges, thereby reducing the influence of the annular magnetic field generated by the coil 501 on the mechanical hand 401. At the same time, the mechanical hand clamping jaw 402 and the connecting screws thereon are made of non-metallic materials, such as bakelite or PEEK for the clamping jaw 402, and nylon screws for the screws, which effectively avoid the impact of the anti-magnetic counterforce generated in the magnetizing coil 504 on the mechanical strength of the mechanical hand 401. The magnetizing coil 501 is installed on the installation base plate 502 with an anti-eddy current groove 5021, which effectively avoids the influence of the eddy current generated by the discharge of the magnetizing coil 501 on the equipment.

[0067] After the magnetization is completed, the mechanical hand 401 drives the mechanical hand clamping jaw 402 to put the bakelite jig 10 with the magnet 11 with magnetic material into the unstacking jig guide groove. The unstacking lifting Z1 cylinder and the unstacking lifting Z2 cylinder are extended to press the jig, the unstacking jig clamping cylinder is opened, the unstacking lifting Z1 cylinder is retracted to lower one jig height, and the unstacking jig clamping cylinder clamps the remaining bakelite jig 10 with the magnet 11. The unstacking lifting Z2 cylinder is retracted to put the unstacked jig 10 in the middle into the middle conveying belt 102, and the middle conveying belt 102 is conveyed out. Repeat the above operation to unstack the jig 10 until all the bakelite jigs 10 in the unstacking jig guide groove are unstacked and conveyed out. The bakelite jig 10 is provided with a foolproof iron block 1002, and the attraction of the foolproof iron block 1002 of the bakelite jig 10 to the magnetized magnet 11 in the jig 10 is greater than the force of the magnetized magnet in other bakelite jigs to the magnetized magnet in the jig. The foolproof iron block is paramagnetic material and does not have magnetism after magnetization.

[0068] The middle conveying belt 102 conveys the unstacked bakelite jig 10 with the magnet 11 to the laser engraving station, the laser engraving station conveying belt jig positioning mechanism positions the bakelite jig 10, and engraves the corresponding characters according to the requirements. The products that do not need to be engraved are not moved by the laser engraving machine and jig positioning mechanism. The bakelite jig 10 with the magnet 11 is conveyed to the magnetic detection unit 8 after passing through the station.

[0069] The linear Hall element mounting block 802 is mounted on the height adjusting cylinder 803 in the magnetic detection unit 8, and the linear Hall element 801 is mounted on the linear Hall element mounting block 802. The linear Hall element 801 needs to be leveled and aligned during installation, so that the magnetic detection unit 8 can accurately detect the surface magnetism. When the bakelite jig 10 with the magnet 11 passes through the magnetic detection unit 8, the jig positioning mechanism accurately positions the bakelite jig 10 with the magnet 11. The height adjusting cylinder 803 acts to make the linear Hall element 801 contact the surface of the magnet 11. The magnetized magnet 11 acts on the energized linear Hall element 801 to output a current signal. The surface magnetism and polarity of the magnetized magnet 11 are obtained through PLC operation. Then, the qualified magnet 11 of the bakelite jig 10 is transferred to the unloading unit 9 through the intermediate conveying belt 102, and the bakelite jig 10 with the unqualified magnet is transferred to the intermediate conveying belt unqualified material buffer area.

[0070] The qualified magnet 11 of the bakelite jig 10 is transferred to the unloading unit 9 through the unloading conveying belt 103. The unloading conveying belt jig positioning mechanism positions the bakelite jig 10. The unloading Z-axis cylinder 902 moves the unloading negative pressure suction nozzle 901 to the magnet 11 of the bakelite jig 10. The Z-axis buffer spring 903 and the flexible silica gel negative pressure suction nozzle 901 can ensure that the unloading negative pressure suction nozzle 901 is in full contact with the magnet. The unloading negative pressure suction nozzle 901 works to suck the magnet. The unloading Z-axis cylinder 902 retracts. The X-direction moving module 905 moves with the unloading negative pressure suction nozzle 901 that sucks the magnet. The Y-direction moving module 907 moves with the receiving disc 906 to move the magnet 11 to the specified position of the receiving disc 906. The Z-axis cylinder accurately places the magnet on the receiving disc 906. The negative pressure suction nozzle is disconnected, and the Z-axis cylinder retracts. The receiving disc 906 adopts a magnetic rubber plate. When the unloading negative pressure suction nozzle 901 is disconnected, the material will be adsorbed on the receiving disc 906. In this way, the magnet can be placed on the receiving disc as required.

[0071] The technical scheme of the present application provides a magnetizing and laser engraving production method for single-pole special-shaped magnets in any orientation. It is mainly used for producing special-shaped single-stage inclined orientation magnets. The cross section of the magnet is an irregular polygon. The magnet has only one N-S stage, and the magnetic orientation is not perpendicular or parallel to any edge of the magnet. Regular single-stage magnets can also be applied. Based on the replacement of the jig and the vibration disc material selection mechanism, the device is suitable for the production of all special-shaped magnets. It saves manpower, improves product stability, and eliminates certain occupational hazards. The mechanical structure effectively avoids the eddy current effect of the magnetizing coil in the device integration. The operator does not have direct contact with the material throughout the process, reducing the surface contamination of the material. The technical scheme solves the technical problems of the existing technology, such as the complicated production process of special-shaped single-stage inclined orientation magnets, the low product stability, and the lack of flexible automatic production equipment for special-shaped single-stage inclined orientation magnets. At the same time, the technical scheme is compatible with the automatic production of single magnets in multiple orientations and arbitrary shapes.

[0072] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0073] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0074] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for automatically magnetizing, laser engraving and detecting a magnet, characterized in that, the device for automatically magnetizing, laser engraving and detecting a magnet is used to automatically magnetize, laser engrave and detect a special-shaped magnet; the device for automatically magnetizing, laser engraving and detecting a magnet comprises: a rack, a conveying belt is arranged on the rack, the conveying belt comprises a feeding conveying belt, an intermediate conveying belt and a discharging conveying belt, the feeding conveying belt, the intermediate conveying belt and the discharging conveying belt correspond to each other at the head and tail to form a circulating operation work area; an electrically controlled feeding unit, a stacking unit, a mechanical arm unit, a magnetizing unit, a separating unit, a laser engraving unit, a magnetic detection unit and a discharging unit are sequentially arranged along the conveying direction of the conveying belt; a bakelite jig, the bakelite jig is provided with a magnet profiling groove and a foolproof iron block, and the bakelite jig is conveyed through the conveying belt; a control unit is used to control the actions of the conveying belt, the feeding unit, the stacking unit, the mechanical arm unit, the magnetizing unit, the separating unit, the laser engraving unit, the magnetic detection unit and the discharging unit; the magnetizing unit comprises a magnetizing coil and a mounting base plate, the magnetizing coil is mounted on the mounting base plate, and the mounting base plate is provided with an anti-eddy current groove; the steps of automatically magnetizing, laser engraving and detecting include: step one, placing a magnet on the vibration disc of the feeding unit and starting the device through the control unit; step two, placing the magnet into the bakelite jig positioned in the feeding work station on the feeding conveying belt through the feeding unit; step three, feeding the bakelite jig with the magnet into the stacking unit through the feeding conveying belt for stacking; step four, grabbing the stacked bakelite jig through the mechanical arm unit, rotating the bakelite jig to make the orientation of the magnet consistent with the magnetizing direction of the magnetizing coil in the magnetizing unit, and then placing the bakelite jig into the magnetizing coil for magnetizing; step five, after magnetizing, placing the bakelite jig with the magnetized magnet into the separating unit through the mechanical arm unit, and placing the bakelite jig onto the intermediate conveying belt through the separating unit; step six, laser engraving the magnet in the bakelite jig positioned in the laser engraving work station on the intermediate conveying belt through the laser engraving unit; step seven, performing surface magnetism detection on the magnet in the bakelite jig positioned in the detection work station on the intermediate conveying belt through the magnetic detection unit, and conveying the bakelite jig with the qualified magnet to the discharging work station; step eight, discharging the magnet in the bakelite jig through the discharging unit, and then placing the bakelite jig back onto the discharging conveying belt and conveying it to the feeding conveying belt.

2. The method for magnet automatic magnetization, laser engraving and detection according to claim 1, characterized in that, The first end of the discharging conveying belt is arranged in the vertical direction of the tail end of the intermediate conveying belt, and the first end of the feeding conveying belt is arranged in the vertical direction of the tail end of the discharging conveying belt; the feeding conveying belt is provided with a feeding positioning mechanism corresponding to the working position of the feeding unit, and is provided with a stacking positioning mechanism corresponding to the corresponding position of the stacking unit; the intermediate conveying belt is provided with a laser engraving positioning mechanism corresponding to the working position of the laser engraving unit, is provided with a detection positioning mechanism corresponding to the working position of the magnetic detection unit, and is provided with a discharging pushing block corresponding to the first end of the discharging conveying belt; the discharging conveying belt is provided with a discharging positioning mechanism corresponding to the working position of the discharging unit, and is provided with a feeding pushing block corresponding to the first end of the feeding conveying belt.

3. The method for magnet automatic magnetization, laser engraving and detection according to claim 2, characterized in that, The feeding unit comprises a vibrating disc, a magnet positioning block, a positioning module, a feeding negative pressure suction nozzle and a feeding cylinder, the vibrating disc is connected with a magnet transmission groove, the tail end of the magnet transmission groove is connected with the magnet positioning block, the magnet positioning block is arranged on the positioning module, and the feeding negative pressure suction nozzle is connected with the feeding cylinder.

4. The method for magnet automatic magnetization, laser engraving and detection according to claim 2, characterized in that, The stacking unit comprises a jig stacking guide groove, a stacking lifting cylinder and a stacking jig clamping cylinder, the jig stacking guide groove is arranged above the tail end of the feeding conveying belt, the stacking lifting cylinder is arranged below the jig stacking guide groove, the number of the stacking jig clamping cylinders is two, and the two stacking jig clamping cylinders are arranged on the two sides of the jig stacking guide groove respectively.

5. The method for automatic magnetization, laser engraving and detection of a magnet as claimed in claim 2, characterized in that: The mechanical hand unit comprises a mechanical hand and a mechanical hand clamping jaw connected with the mechanical hand, the clamping position of the mechanical hand clamping jaw is arranged to be offset from the connecting position of the mechanical hand clamping jaw and the mechanical hand, and the mechanical hand clamping jaw is made of a non-metallic material.

6. The method for magnet automatic magnetization, laser engraving and detection according to claim 2, characterized in that, The stacking unit comprises a jig stacking guide groove, a stacking lifting cylinder and a stacking jig clamping cylinder, the jig stacking guide groove is arranged above the tail end of the feeding conveying belt, the stacking lifting cylinder is arranged below the jig stacking guide groove, the number of the stacking jig clamping cylinders is two, and the two stacking jig clamping cylinders are arranged on the two sides of the jig stacking guide groove respectively.

7. The method for magnet automatic magnetization, laser engraving and detection according to claim 2, characterized in that, The magnetic detection unit comprises a height adjusting cylinder, a linear Hall element mounting block and a linear Hall element, the linear Hall element mounting block is mounted below the height adjusting cylinder, and the linear Hall element is mounted below the linear Hall element mounting block.

8. The method for magnet automatic magnetization, laser engraving and detection according to claim 2, characterized in that, The discharging unit comprises a discharging Z-axis cylinder, a discharging negative pressure suction nozzle, an X-direction moving module, a Y-direction moving module and a receiving disc, the Z-axis cylinder is arranged on the Y-direction moving module, a Z-axis buffer spring is arranged between the Z-axis cylinder and the Y-direction moving module, the lower end of the Z-axis cylinder is connected with the discharging negative pressure suction nozzle, the receiving disc is arranged on the X-direction moving module, and the receiving disc is a rubber magnetic plate.

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