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CN-121317357-B - Discharging device and discharging method for neodymium-iron-boron magnet production

CN121317357BCN 121317357 BCN121317357 BCN 121317357BCN-121317357-B

Abstract

The application provides a discharging device and a discharging method for producing neodymium iron boron magnets, which are characterized in that a top CCD camera is used for photographing a vibration disc, identifying the specific position and the horizontal plane state of a material, judging the angle of horizontal rotation of the material, then a material carrying mechanism is used for grabbing the material according to the identification result of the top CCD camera and horizontally rotating the material until the length direction of the material is parallel to the feeding direction of a feeding channel, then the material is placed at the feeding end of the feeding channel, then a material pushing mechanism is used for pushing the material to the discharging end of the feeding channel, a side CCD camera is used for photographing the side face of the material at the discharging end of the feeding channel so as to identify the vertical plane state of the material, judging the angle of circumferential rotation of the material, finally the material pushing mechanism is used for pushing the material to a rotating material channel, and the rotating material channel is driven to be circumferentially rotated to be right-side up according to the identification result of the side CCD camera.

Inventors

  • ZHOU BAOPING
  • FAN XIAODONG

Assignees

  • 包头市英思特稀磁新材料股份有限公司

Dates

Publication Date
20260505
Application Date
20251217

Claims (10)

  1. 1. The discharging method for producing the neodymium iron boron magnet is characterized by being executed by a discharging device, wherein the discharging device comprises a feeding unit, a material pushing and identifying unit and an arrangement and positioning unit; The feeding unit comprises a vibrating disc, a material carrying mechanism and a top CCD camera, wherein the vibrating disc is provided with a material to be positioned, the material carrying mechanism and the top CCD camera are positioned above the vibrating disc, the top CCD camera shoots the vibrating disc downwards, and the material carrying mechanism is used for horizontally rotating and carrying the material; the material pushing and identifying unit comprises a feeding channel, a pushing mechanism and a side CCD camera, wherein the pushing mechanism is arranged at the feeding end of the feeding channel to push materials to move to the arrangement and positioning unit, and the side CCD camera is arranged at one side of the discharging end of the feeding channel to photograph the side surface of the materials; The arrangement and positioning unit comprises a rotary material channel and a positioning platform, wherein the rotary material channel is used for driving materials to circumferentially rotate, and two ends of the rotary material channel are respectively in butt joint with a discharge end of the feeding channel and the positioning platform; The discharging method comprises the following steps: S1, feeding and horizontally positioning, namely photographing a vibration disc downwards by a top CCD camera to identify the specific position and horizontal plane state of the material, judging the angle of the material to be horizontally rotated, grabbing the material by a material moving mechanism according to the identification result of the top CCD camera, horizontally rotating the material until the length direction of the material is parallel to the feeding direction of a feeding channel, and then placing the material at the feeding end of the feeding channel; s2, feeding and circumferential positioning, wherein the pushing mechanism pushes the material to move to the discharge end of the feeding channel, and the side CCD camera photographs the side surface of the material at the discharge end of the feeding channel so as to identify the vertical surface state of the material and judge the angle of the material needing circumferential rotation; S3, circumferential rotation positioning, namely pushing the material to a rotary material channel through a material feeding channel by a material pushing mechanism, driving the material to rotate to face upwards in the circumferential direction by the rotary material channel according to the identification result of the side CCD camera, and pushing the material to a positioning platform through the material pushing mechanism, so that subsequent feeding operation is completed on the positioning platform.
  2. 2. The discharging method for producing the neodymium iron boron magnet according to claim 1, wherein the material pushing identification unit further comprises a feeding plate, a feeding channel is arranged on the feeding plate, a pushing groove is formed below the feeding end of the feeding channel, the pushing mechanism comprises a pushing head and a pushing cylinder, the pushing cylinder is arranged below the feeding plate, the bottom end of the pushing head is arranged on the pushing cylinder, the top end of the pushing head penetrates through the pushing groove and stretches into the feeding end to be in pushing fit with the material, the width of the pushing groove is smaller than the width and the height of the material, the width of the feeding channel is larger than the width and the height of the material, and accordingly in step S2, the material moving mechanism sequentially places a plurality of materials at the feeding end, and the pushing cylinder drives the pushing head to reciprocate in the pushing groove to push the plurality of materials to move to the discharging end, the rotating material channel and the positioning platform successively.
  3. 3. The discharging method for producing neodymium iron boron magnet according to claim 2, wherein in step S2, a section of notch groove is formed in one side of the discharging end of the feeding plate, which faces the side CCD camera, so that the side face of the material is exposed, and the side CCD camera photographs the exposed material.
  4. 4. The discharging method for producing the neodymium iron boron magnet, which is characterized in that the material pushing identification unit further comprises a pushing buffer mechanism, the pushing buffer mechanism comprises a buffer head, a first buffer spring and a sliding seat, the sliding seat is arranged on the pushing cylinder, the bottom end of the pushing head is arranged on the sliding seat in a sliding mode, the buffer head is arranged on one side, far away from the feeding end, of the pushing head, the bottom end of the buffer head is fixed with the pushing cylinder, the buffer head is connected with the pushing head through the first buffer spring, and therefore in step S2, after the material is placed at the feeding end by the material moving mechanism, the sliding seat is driven to move along the feeding direction by the pushing cylinder, the pushing head moves relative to the buffer head through buffering of the first buffer spring while the pushing head starts pushing the material, and therefore tolerance of the length direction of the material is compensated, and head-to-tail contact of adjacent materials in a feeding channel is guaranteed.
  5. 5. The discharging method for producing neodymium iron boron magnets is characterized by further comprising a pressing buffer mechanism, wherein the pressing buffer mechanism comprises a sliding block, a pressing wheel, a second buffer spring and a fixing rod, the bottom end of the fixing rod is fixed on an upper material plate, the sliding block is sleeved on the fixing rod in a sliding mode, the second buffer spring is sleeved on the fixing rod, two ends of the second buffer spring are respectively abutted to the protruding edge of the top end of the fixing rod and the sliding block, a rotating shaft is arranged in the center of the pressing wheel and is in rotary connection with the sliding block, the bottom end of the pressing wheel stretches into a feeding channel to be abutted to materials, and accordingly in step S2, when the materials move in the feeding channel, the pressing wheel is always abutted to the materials to provide damping when the materials advance, and reverse movement of the materials is prevented.
  6. 6. The discharging method for producing neodymium iron boron magnets according to claim 1, wherein a mounting frame is arranged on one side, close to a feeding channel, of the positioning platform, a belt pulley mechanism is arranged on the mounting frame, the rotating material channel is fixedly arranged at the center of a driven wheel of the belt pulley mechanism, the cross section of the inner portion of the rotating material channel is identical to the cross section of a material, and therefore in the step S3, after the material is pushed into the rotating material channel, the belt pulley mechanism drives the rotating material channel to rotate along the circumferential direction of the axis of the belt pulley mechanism, and further drives the material to rotate.
  7. 7. A discharging method for producing neodymium iron boron magnets is characterized in that a positioning material channel which is in butt joint with a rotating material channel is arranged above a positioning platform, a material inlet end of the positioning material channel is arranged to be a conical opening, materials can enter conveniently, the width of the material inlet end is identical to that of the materials so as to limit according to the size of the materials, an adjusting block which is in butt joint with the materials is arranged on the material inlet end side of the positioning material channel, a plurality of feeding channels, the rotating material channel, the positioning material channel and a plurality of pushing heads are arranged side by side, and the discharging device further comprises a feeding conveying mechanism and an equipment streamline, so that in step S3, after the pushing mechanism pushes the materials to the positioning material channel, the materials are respectively in butt joint with the adjusting blocks at the material inlet ends of the positioning material channels, the materials are aligned and positioned, and then all the materials on the positioning platform are conveyed onto the equipment streamline by the feeding conveying mechanism, so that feeding operation is completed.
  8. 8. The discharging method for producing neodymium iron boron magnet according to claim 1, wherein the transporting mechanism comprises a multi-axis manipulator, a suction nozzle and a rotating motor, wherein the suction nozzle is arranged at the free end of the multi-axis manipulator to drive the suction nozzle to move horizontally and up and down, a vacuum device is arranged in the suction nozzle to adsorb materials, the rotating motor is arranged above the suction nozzle and is in driving connection with the suction nozzle, and accordingly in step S1, the suction nozzle is driven by the multi-axis manipulator to grab materials, and then the rotating motor drives the materials to rotate horizontally until the length direction of the materials is parallel to the feeding direction of the feeding channel.
  9. 9. The discharging method for producing neodymium iron boron magnet according to claim 8, wherein a connecting pipe sleeve is arranged between the suction nozzle and the rotating motor, the suction nozzle is arranged in the connecting pipe sleeve in a telescopic manner, and a compensating spring is abutted between the suction nozzle and the connecting pipe sleeve.
  10. 10. A discharging device for producing neodymium iron boron magnets, which is used for executing the discharging method for producing neodymium iron boron magnets according to any one of claims 1-9, and is characterized by comprising a feeding unit, a material pushing identification unit and an arrangement positioning unit; The feeding unit comprises a vibration disc, a material carrying mechanism and a top CCD camera, wherein the vibration disc is provided with a material to be positioned, the material carrying mechanism and the top CCD camera are positioned above the vibration disc, the top CCD camera shoots the vibration disc downwards to identify the specific position and the horizontal plane state of the material and judge the angle of the material needing to horizontally rotate; The material pushing and identifying unit comprises a feeding channel, a pushing mechanism and a side CCD (charge coupled device) camera, wherein the pushing mechanism is arranged at the feeding end of the feeding channel to push materials to the rotating material channel and the positioning platform, and the side CCD camera is arranged at one side of the discharging end of the feeding channel to photograph the side face of the materials, so that the vertical face state of the materials is identified, and the angle of the materials needing to be rotated circumferentially is judged; the arrangement positioning unit comprises a rotary material channel and a positioning platform, two ends of the rotary material channel are respectively in butt joint with a discharge end of the feeding channel and the positioning platform, and after the material moves to the rotary material channel, the rotary material channel circumferentially rotates the material to the front side upwards according to the identification result of the side CCD camera.

Description

Discharging device and discharging method for neodymium-iron-boron magnet production Technical Field The invention belongs to the technical field of magnet processing, and particularly relates to a discharging device and a discharging method for neodymium-iron-boron magnet production. Background In the production process of the neodymium iron boron magnet, particularly for the feeding link of the nonmagnetic magnetic component or nonmagnetic single magnet, a vibration disc or a flexible vibration disc is generally adopted to arrange materials in the same direction, and then the materials are conveyed to a production jig by a feeding mechanism. The method is suitable for scenes with obvious appearance characteristics in the forward and backward directions of the materials or without distinguishing directions. However, in actual production, part of the magnetic assemblies lack obvious appearance characteristics or are too small in characteristics, and positive and negative directions are difficult to effectively distinguish through a screening mechanism on a vibration disk, for example, the magnetic assemblies shown in fig. 1 are composed of a strip-shaped iron sheet 11 and a plurality of magnets 12, the iron sheet surface is set to be positive, the magnet surface is set to be negative, and the magnet surface is required to be arranged to be positive upwards during feeding, but because the area of the iron sheet 11 and the area of the magnet 12 are not greatly different, the vertical projection area is basically the same, the arrangement of magnetic resistance elements to be positive upwards is difficult to ensure by only feeding through the vibration disk, and even if photographing is performed through an existing top CCD camera, whether the magnetic assemblies are iron sheet surfaces upwards or downwards can only be distinguished manually, therefore, the arrangement and feeding of the magnetic assemblies are required to rely on manual intervention, the efficiency is low, the manual operation error rate is high, and the production yield and the automation level are seriously affected. At present, the technical scheme of automatic feeding and discharging of materials which cannot be distinguished in the positive and negative directions through appearance features is not yet achieved in the industry, and a discharging device capable of being intelligently identified, rotationally adjusted and accurately positioned is needed, so that the automation degree and the production efficiency of procedures such as magnet assembly, magnetization and detection are improved. Disclosure of Invention The invention aims to provide a discharging device and a discharging method for producing neodymium iron boron magnets, which realize discharging and feeding automation by positioning materials through twice rotation adjustment. In order to achieve the aim, the invention provides a discharging method for producing neodymium iron boron magnets, which is executed by a discharging device, wherein the discharging device comprises a feeding unit, a material pushing and identifying unit and an arranging and positioning unit; The feeding unit comprises a vibrating disc, a material carrying mechanism and a top CCD camera, wherein the vibrating disc is provided with a material to be positioned, the material carrying mechanism and the top CCD camera are positioned above the vibrating disc, the top CCD camera shoots the vibrating disc downwards, and the material carrying mechanism is used for horizontally rotating and carrying the material; the material pushing and identifying unit comprises a feeding channel, a pushing mechanism and a side CCD camera, wherein the pushing mechanism is arranged at the feeding end of the feeding channel to push materials to move to the arrangement and positioning unit, and the side CCD camera is arranged at one side of the discharging end of the feeding channel to photograph the side surface of the materials; The arrangement and positioning unit comprises a rotary material channel and a positioning platform, wherein the rotary material channel is used for driving materials to circumferentially rotate, and two ends of the rotary material channel are respectively in butt joint with a discharge end of the feeding channel and the positioning platform; The discharging method comprises the following steps: S1, feeding and horizontally positioning, namely photographing a vibration disc downwards by a top CCD camera to identify the specific position and horizontal plane state of the material, judging the angle of the material to be horizontally rotated, grabbing the material by a material moving mechanism according to the identification result of the top CCD camera, horizontally rotating the material until the length direction of the material is parallel to the feeding direction of a feeding channel, and then placing the material at the feeding end of the feeding channel; s2, feeding and circumferential positioning