CN118847541A - Continuous detection equipment for NdFeB magnets and working method thereof - Google Patents

Abstract

The present invention relates to the technical field of NdFeB magnet production, and in particular to continuous detection equipment and a working method thereof for NdFeB magnets, comprising a workbench, a cylindrical barrel, a feeding belt, a support plate and a magnetic attraction portion, wherein a plurality of magnetic steel bodies are vertically stacked in the cylindrical barrel, a discharge port is arranged at the lower side of the cylindrical barrel, the discharge port and the cylindrical barrel are staggered, the cylindrical barrel passes through the support plate and is fixedly connected thereto, a screening rod is arranged at the lower side of the cylindrical barrel, the screening rod rotates and moves the magnetic steel body at the lower end of the cylindrical barrel to the discharge port; the upper end of the workbench is rotatably connected to a transfer seat, and a pair of limit sleeves are arranged at both ends of the transfer seat, the limit sleeves are used to receive the magnetic steel body, and the transfer seat is used to drive a pair of limit sleeves to rotate and alternately dock with the discharge port and the magnetic attraction portion; the magnetic attraction portion includes an electromagnet block. The present invention realizes the continuous detection function conveniently and efficiently.

Description

Continuous detection equipment for NdFeB magnets and working method thereof

Technical Field

The invention relates to the technical field of NdFeB magnet production, and in particular to continuous detection equipment for NdFeB magnets and a working method thereof.

Background Art

Neodymium magnets, also known as NdFeB magnets, are tetragonal crystals formed by neodymium, iron, and boron. This type of magnet is a permanent magnet with magnetic properties second only to absolute zero holmium magnets. It is also the most commonly used rare earth magnet and is widely used in electronic products such as hard drives, mobile phones, headphones, and battery-powered tools. In the production process of NdFeB magnets, testing the strength of their magnetic force is an essential step.

In the Chinese invention patent application with the existing patent announcement number CN115097363A, a NdFeB magnet detection device and method for recycling NdFeB waste are disclosed, including a workbench, on which a fixing fixture, a lifting bracket, a magnetic detection component and a bracket lifting mechanism are installed. A detection port is provided in the center of the workbench for the NdFeB magnet to be detected for its magnetism by the magnetic detection component. The size of the detection port is smaller than the size of the NdFeB magnet. The magnetic detection component includes an electromagnet, a tension detection mechanism and a reset mechanism. The electromagnet is located directly below the detection port. The reset mechanism is arranged on the lifting bracket, and the reset mechanism is cooperatively connected with the tension detection mechanism.

In the above technical solution, the NdFeB magnet is fixed by a fixing clamp, the electromagnet is attracted by the NdFeB magnet and approaches it, the steel wire rope is deformed, and the tension value of the steel wire rope deformation is sensed by the slide displacement sensor to detect the magnetic strength of the NdFeB magnet. When the electromagnet is not attracted, the lifting bracket is driven by the bracket lifting mechanism to drive the electromagnet to approach the NdFeB magnet until the electromagnet can be attracted by the NdFeB magnet, thereby measuring its magnetic strength. However, in the above technical solution, manual sampling is required and placed on the processing position, wherein it is necessary to manually separate from a large number of mutually adsorbed magnetic steels and then load the materials, which is time-consuming and labor-intensive. Moreover, when the detection is completed and the materials are taken out, they still need to be manually removed, which increases the fatigue intensity of the staff and has a low degree of automation.

Therefore, it is necessary to provide a continuous detection device and a working method for NdFeB magnets to achieve the effect of continuous detection.

Summary of the invention

The object of the present invention is to provide a continuous detection device for NdFeB magnets and a working method thereof to solve the problems raised in the above background technology.

In order to solve the above technical problems, the present invention provides the following technical solutions: a continuous detection device for NdFeB magnets, comprising a workbench, a cylindrical barrel, a feeding belt, a support plate and a magnetic suction part,

A plurality of magnetic steel bodies are vertically stacked in the cylindrical barrel, a discharge port is arranged at the lower side of the cylindrical barrel, the discharge port is staggered with the cylindrical barrel, the cylindrical barrel passes through the support plate and is fixedly connected thereto, a screening rod is arranged at the lower side of the cylindrical barrel, the screening rod rotates and moves the magnetic steel body at the lower end of the cylindrical barrel to the discharge port;

The upper end of the workbench is rotatably connected with a transfer seat, and a pair of limit sleeves are arranged at both ends of the transfer seat, and the limit sleeves are used to receive the magnetic steel body, and the transfer seat is used to drive the pair of limit sleeves to rotate and alternately dock with the discharge port and the magnetic suction part;

The magnetic attraction part includes an electromagnet block, a displacement sensor is arranged on the upper side of the electromagnet block, a plurality of fixing rods are fixedly connected to the lower end of the support plate, a limiting plate is fixedly connected to the lower end of the fixing rod, the electromagnet block passes through the middle end of the limiting plate and is gap-matched with the limiting plate, the lower end surface of the limiting plate is flush with the upper end surface of the limiting sleeve, and a lifting assembly is arranged on the upper side of the displacement sensor, and the lifting assembly drives the electromagnet block to absorb and lift the magnetic steel body;

A material discharge port is provided through the upper side of the workbench, the material discharge port is correspondingly arranged at the lower side of the magnetic attraction part, and the feeding belt is arranged at the lower side of the material discharge port.

In one embodiment, the lower end of the cylindrical barrel is fixedly connected to a limit frame, the height of the limit frame is not less than the height of a single magnetic steel body, the lower side of one end of the limit frame is fixedly connected to the discharge port, an open slot is provided on one side of the limit frame, the screening rod passes through the open slot and drives the magnetic steel body to move, an adaptation port is penetrated through the upper end of the support plate, a top plate is fixedly connected in the adaptation port, the limit frame is fixed to the lower end of the top plate, the lower end of the top plate is rotatably connected to a rotating rod 1, the lower end of the rotating rod 1 penetrates and is fixedly connected to a turntable, a rotating seat is provided on the upper side of the turntable, and one end of the rotating seat is fixedly connected to the screening rod.

In one embodiment, the turntable is rotatably connected to a rotating seat, the rotating seat is eccentrically arranged on one side of the turntable, an adapter seat is fixedly connected to the upper end of the turntable, the rotating seat is arranged at one end inside the adapter seat, an adapter groove is opened at one end of the adapter seat, the length of the adapter groove is equal to that of the screening rod, a torsion spring is arranged between the rotating seat and the turntable, and the torsion spring drives the screening rod away from the adapter groove.

In one embodiment, a slot is provided on one side of the rotating seat, and a convex hole is provided on the upper side of the adapter seat. The convex hole extends to the rotating seat, and a convex clamp is slidably fitted inside the convex hole. A spring contraction column is provided at one end of the convex clamp and one end of the convex hole. The convex clamp is adapted to the slot, and when the screening rod moves the magnetic steel body to the discharge port, the convex clamp disengages from the slot.

In one embodiment, the upper end of the convex clamp is rotatably connected to a rotating rod 2, and the lower end of the top plate is fixedly connected to a limiting ring, the limiting ring coincides with the axis of the rotating rod 1, a connecting plate is fixedly connected between the limiting ring and the limiting frame, the lower end of the limiting ring is rotatably connected to the adapter seat, an outer arc surface and an inner arc surface are provided on the inner side of the limiting ring, the rotating rod 2 rolls against the outer arc surface, and when the rotating rod 2 rolls against the outer arc surface, the convex clamp is disengaged from the slot, and when the rotating rod 2 rolls against the inner arc surface, the convex clamp is inserted into the slot.

In one embodiment, the lower end of the rotating rod 1 is fixedly connected to the pulley 1, one side of the pulley 1 is connected to the pulley 2, the lower end of the pulley 2 is fixedly connected to the middle rotating seat, the size of the pulley 2 is larger than the pulley 1, when the pulley 2 rotates half a circle, the pulley 1 rotates one circle, the upper end of the pulley 2 is fixedly connected to the rotating rod 3, the upper end of the rotating rod 3 passes through the support plate and is fixedly connected to the motor part.

In one embodiment, a fixed plate is fixedly connected between the limiting sleeve and the transfer seat, and a pair of semicircular plates are provided at the lower end of the limiting sleeve, the diameter of the semicircular plates is equal to the diameter of the limiting sleeve, and the pair of semicircular plates support the magnetic steel body in the limiting sleeve;

One end of a pair of semicircular plates is fixedly connected to a pair of hinge plates, and the pair of hinge plates are staggered. One side of the fixed plate is rotatably connected to a central column, and the central column passes through the pair of hinge plates and is rotatably connected thereto. One end of the pair of semicircular plates is fixedly connected to a pair of opposite rods, and the pair of opposite rods drive the pair of semicircular plates to flip relative to each other with the central column as the axis.

In one embodiment, a telescopic rod is provided at one end of the square rod, and a moving rod is connected to one end of the telescopic rod. A V-shaped groove is penetrated through the fixed plate, and a pair of moving rods penetrate the V-shaped groove and move along it. The upper end of the moving rod is rotatably connected to a slider, and a square frame is slidably matched with the outer side of the pair of sliders. The lower end of the square frame is slidably matched with the fixed plate, and a plurality of spring telescopic rods are provided at one end of the frame, and the spring telescopic rods are connected to the transfer seat.

A rotating column is arranged on one side of the magnetic attraction part, the upper end of the rotating column is rotatably connected to the support plate, a pushing rod is eccentrically arranged on the lower end of the rotating column, there is a distance difference between the lower end surface of the pushing rod and the fixed plate, and the rotating column is driven to rotate by the motor assembly.

In one embodiment, the lifting assembly includes a threaded sleeve, the lower end of which is fixedly connected to the displacement sensor, the threaded sleeve passes through the support plate and slides with it, the upper end of the threaded sleeve is threadedly connected to a threaded rod, the upper end of the support plate is fixedly connected to a motor seat, the threaded sleeve passes through the motor seat and slides with it, and the upper end of the threaded rod is provided with a motor part.

The working method of the continuous detection equipment for NdFeB magnets comprises the following steps:

The magnetic steel body at the bottom of the cylindrical barrel is moved to the discharge port by rotating the screening rod;

The magnetic steel body falls from the discharge port into the limit sleeve, and the transfer seat drives the limit sleeve and the magnetic steel body to rotate with the transfer seat as the axis, so that the limit sleeve drives the magnetic steel body to move to the lower side of the magnetic attraction part, and the limit sleeve at the other end returns to the lower side of the discharge port to re-accept the magnetic steel body;

The limit sleeve is located at the lower side of the limit plate, and the lifting assembly drives the electromagnet block to pass through the limit plate and adsorb to the magnetic steel body;

The lifting assembly drives the electromagnet block to rise and reset, driving the magnetic steel body to rise synchronously and break away from the limit sleeve until the magnetic steel body is restricted by the limit plate and cannot rise. The displacement sensor detects the pulling force on the electromagnet block.

Under the restriction of the limit plate, the electromagnet block is separated from the magnetic steel body, and the magnetic steel body falls to the upper side of the feeding belt through the discharge port.

Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, a discharge port is provided on the staggered side of the cylindrical barrel, and the outer screening rod is rotated to the inner side of the cylindrical barrel, and the magnetic steel body at the lowermost end of the cylindrical barrel is moved toward the discharge port, so that the magnetic steel body at the lowermost end is separated from the magnetic steel bodies adsorbed on the inner side of the cylindrical barrel and discharged, and no manual separation is required, which saves time and effort. Then the magnetic steel body falls from the discharge port into the limiting sleeve, and the transfer seat drives a pair of limiting sleeves and the magnetic steel body to rotate with the transfer seat as the axis, so that the limiting sleeve drives the magnetic steel body to move to the lower side of the magnetic attraction part for magnetic force detection, and the limiting sleeve at the other end returns to the lower side of the discharge port to re-connect the magnetic steel body, so that feeding and detection are carried out alternately, thereby improving work efficiency.

The lifting component drives the electromagnet block to pass through the limit plate and adsorb to the magnetic steel body. The lifting component then drives the electromagnet block to rise and reset, driving the magnetic steel body to rise synchronously and break away from the limit sleeve until the magnetic steel body is restricted by the limit plate and cannot rise. At this time, the displacement sensor is used for detection, and as the lifting component continues to rise, until the electromagnet block is separated from the magnetic steel body, the displacement sensor can determine whether the magnetic strength of the magnetic steel body is qualified by detecting the displacement during this period. If the displacement is greater than or equal to the specified standard value, it proves that the magnetic strength of the magnetic steel body is qualified. The strength is qualified, otherwise it is unqualified. At the same time, when the electromagnet block adsorbs the magnetic steel body and conducts inspection, the transfer seat can drive the limit sleeve to rotate, so that the limit sleeve is away from the lower side of the magnetic steel body. Then the magnetic steel body that has been inspected, that is, the magnetic steel body separated from the electromagnet block, falls directly and falls to the upper side of the feeding belt through the discharge port, and is thus transmitted to the next process. The unqualified products can be removed by the staff at this time, and the inspection of the magnetic steel body can be completed. Continuous inspection is possible without the need for staff to manually separate and load materials in sequence, thereby improving work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic front cross-sectional view of the present invention;

FIG3 is a partial perspective diagram of the upper side of the present invention;

FIG4 is a schematic cross-sectional view of a cylindrical barrel of the present invention;

FIG5 is a partial perspective schematic diagram of the present invention;

FIG6 is a closed three-dimensional schematic diagram of a semicircular plate of the present invention;

FIG7 is a schematic diagram of the development of a semicircular plate of the present invention;

FIG8 is a partial enlarged schematic diagram of area A in FIG5 ;

In the figure: 1, cylindrical barrel; 101, screening rod; 102, discharge port; 103, limit frame; 104, opening slot; 105, rotating rod 1; 106, rotating disk; 107, rotating seat; 108, adapter seat; 109, adapter slot; 110, convex clamp; 111, rotating rod 2; 112, limit ring; 113, connecting plate; 114, outer arc surface; 115, inner arc surface;

2. Workbench; 201. Transfer seat; 202. Limit sleeve; 203. Semicircular plate; 204. Hinge plate; 205. Fixed plate; 206. Square rod; 207. Moving rod; 208. V-shaped slide; 209. Sliding block; 210. Square frame; 211. Spring telescopic rod 1;

3. Magnetic attraction part; 301. Electromagnet block; 302. Displacement sensor; 303. Fixed rod; 304. Limit plate; 305. Threaded sleeve; 306. Threaded rod;

4. Rotating column; 401. Push rod; 402. Motor seat;

5. Support plate; 501. Top plate; 502. Pulley 1; 503. Pulley 2; 504. Rotating rod 3;

7. Magnetic steel body;

8. Feeding belt;

9. Feeding port.

DETAILED DESCRIPTION

The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and/or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and/or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and/or the use of other materials.

Please refer to Figures 1-8. The present invention provides a technical solution: a continuous detection device for NdFeB magnets and a working method thereof, comprising a workbench 2, a cylindrical barrel 1, a feeding belt 8, a support plate 5 and a magnetic suction part 3.

A plurality of magnetic steel bodies 7 are vertically stacked in the cylindrical barrel 1. A discharge port 102 is provided at the lower side of the cylindrical barrel 1. The discharge port 102 is staggered with the cylindrical barrel 1. The cylindrical barrel 1 passes through the support plate 5 and is fixedly connected thereto. A screening rod 101 is provided at the lower side of the cylindrical barrel 1. The screening rod 101 rotates and moves the magnetic steel body 7 at the lower end of the cylindrical barrel 1 to the discharge port 102.

The upper end of the workbench 2 is rotatably connected to a transfer seat 201, and a pair of limit sleeves 202 are arranged at both ends of the transfer seat 201. The limit sleeves 202 are used to receive the magnetic steel body 7, and the transfer seat 201 is used to drive the pair of limit sleeves 202 to rotate and alternately connect with the discharge port 102 and the magnetic suction part 3;

The magnetic attraction part 3 includes an electromagnet block 301, a displacement sensor 302 is arranged on the upper side of the electromagnet block 301, a plurality of fixing rods 303 are fixedly connected to the lower end of the support plate 5, and a limiting plate 304 is fixedly connected to the lower end of the fixing rod 303. The electromagnet block 301 penetrates the middle end of the limiting plate 304 and cooperates with the gap therewith. The lower end surface of the limiting plate 304 is flush with the upper end surface of the limiting sleeve 202. A lifting assembly is arranged on the upper side of the displacement sensor 302, and the lifting assembly drives the electromagnet block 301 to absorb and lift the magnetic steel body 7;

A material discharge port 9 is formed through the upper side of the workbench 2 . The material discharge port 9 is correspondingly arranged at the lower side of the magnetic attraction portion 3 . The feeding belt 8 is arranged at the lower side of the material discharge port 9 .

When performing the inspection, the staff first needs to put a number of mutually adsorbed magnetic steel bodies 7 into the cylindrical barrel 1 in advance, and a base is provided at the lower end of the cylindrical barrel 1 to block the lower end of the cylindrical barrel 1 and support the magnetic steel bodies 7 inside. A discharge port 102 is provided on the side offset from the cylindrical barrel 1. The outer screening rod 101 is rotated to the inner side of the cylindrical barrel 1, and the magnetic steel bodies 7 at the lower end of the cylindrical barrel 1 are moved toward the discharge port 102, so that the magnetic steel bodies 7 at the lower end are adsorbed from the inner side of the cylindrical barrel 1. The magnetic steel body 7 is separated and unloaded without manual separation, which saves time and effort. Then the magnetic steel body 7 falls from the discharge port 102 into the limiting sleeve 202, and the transfer seat 201 drives a pair of limiting sleeves 202 and the magnetic steel body 7 to rotate with the transfer seat 201 as the axis, so that the limiting sleeve 202 drives the magnetic steel body 7 to move to the lower side of the magnetic attraction part 3 for magnetic force detection, and the limiting sleeve 202 at the other end returns to the lower side of the discharge port 102 to re-connect the magnetic steel body 7, so that feeding and detection are alternately performed, thereby improving work efficiency;

Specifically, during magnetic force detection, the limit sleeve 202 is displaced to the lower side of the limit plate 304, and the lifting component drives the electromagnet block 301 to pass through the limit plate 304 and adsorb to the magnetic steel body 7. The lifting component then drives the electromagnet block 301 to rise and reset, driving the magnetic steel body 7 to rise synchronously and break away from the limit sleeve 202, until the magnetic steel body 7 is restricted by the limit plate 304 and cannot rise. At this time, the displacement sensor 302 is used for detection, and as the lifting component continues to rise, until the electromagnet block 301 is separated from the magnetic steel body 7, the displacement sensor 302 can determine whether the magnetic strength of the magnetic steel body 7 is qualified by detecting the displacement during this period. If the displacement is greater than or equal to If it meets the specified standard value, it proves that the magnetic strength of the magnetic steel body 7 is qualified, otherwise it is unqualified. At the same time, when the electromagnet block 301 adsorbs the magnetic steel body 7 and performs detection, the transfer seat 201 can drive the limit sleeve 202 to rotate, so that the limit sleeve 202 is away from the lower side of the magnetic steel body 7. Then the magnetic steel body 7 that has been detected, that is, the magnetic steel body 7 separated from the electromagnet block 301, falls directly and falls to the upper side of the feeding belt 8 through the discharge port 9, so as to be transmitted to the next process. The unqualified products can be removed by the staff at this time, and the detection of the magnetic steel body 7 can be completed. Moreover, the detection can be carried out continuously without the need for the staff to manually separate and load the materials in sequence, thereby improving the work efficiency.

The lower end of the cylindrical barrel 1 is fixedly connected to a limit frame 103, the height of the limit frame 103 is not less than the height of a single magnetic steel body 7, the lower side of one end of the limit frame 103 is fixedly connected to the discharge port 102, an open slot 104 is provided on one side of the limit frame 103, the screening rod 101 passes through the open slot 104 and moves the magnetic steel body 7, an adaptation port is penetrated through the upper end of the support plate 5, a top plate 501 is fixedly connected in the adaptation port, the limit frame 103 is fixed to the lower end of the top plate 501, the lower end of the top plate 501 is rotatably connected to a rotating rod 105, the lower end of the rotating rod 105 penetrates and is fixedly connected to a turntable 106, a rotating seat 107 is provided on the upper side of the turntable 106, and one end of the rotating seat 107 is fixedly connected to the screening rod 101.

Preferably, the magnetic steel body 7 at the lower end falls in the limit frame 103, and its height is less than or equal to the height of the limit frame 103, so that when the screening rod 101 is moved, the magnetic steel body 7 on the upper side is still restricted in the cylindrical tube 1, and only the magnetic steel body 7 at the lower end is displaced along the limit frame 103 to achieve single screening. Specifically, when screening and feeding are required, the rotation of the rotating rod 105 drives the turntable 106 and the rotating seat 107 to rotate, thereby driving the screening rod 101 to rotate, and rotate to the inner side of the cylindrical tube 1 through the opening slot 104, and the magnetic steel body 7 is moved to the discharge port 102 to complete the screening and feeding work.

The turntable 106 is rotatably connected to the rotating seat 107. The rotating seat 107 is eccentrically arranged on one side of the turntable 106. The upper end of the turntable 106 is fixedly connected with an adapter seat 108. The rotating seat 107 is arranged at one end inside the adapter seat 108. An adapter groove 109 is opened at one end of the adapter seat 108. The length of the adapter groove 109 is equal to that of the screening rod 101. A torsion spring is arranged between the rotating seat 107 and the turntable 106. The torsion spring drives the screening rod 101 away from the adapter groove 109.

Preferably, in order to prevent the screening rod 101 from eventually pressing the magnetic steel body 7 against the side wall of the limit frame 103 when pushing the magnetic steel body 7 to move toward the discharge port 102, and the extrusion force prevents the magnetic steel body 7 from falling from the discharge port 102, the screening rod 101 is configured to be retractable. Specifically, the rotating seat 107 is eccentrically arranged on one side of the turntable 106, so that the screening rod 101 extends to the outside of the turntable 106, and a torsion spring is provided to ensure that the screening rod 101 is always kept away from the adapter groove 109 (as shown in FIG. 4 ). An adapter seat 108 is provided to limit the range of movement of the screening rod 101. When screening and feeding are performed, the turntable 106 drives the adapter seat 108, the rotating seat 107 and the screening rod 101 rotates, when the screening rod 101 moves the magnetic steel body 7 to the discharge port 102, the open groove 104 restricts the screening rod 101 from moving further, so that the screening rod 101 remains stationary, and the turntable 106 continues to rotate. At this time, the torsion spring is compressed, and the adapter groove 109 approaches the screening rod 101 until the screening rod 101 is stuck in the adapter groove 109. At this time, the screening rod 101 is completely retracted to the inside of the turntable 106 and will not extend to the outside. The turntable 106 and the adapter seat 108 can completely bring the screening rod 101 out of the open groove 104. Under the resetting action of the torsion spring, the screening rod 101 is reset, and then extends out of the outside of the turntable 106 for the next screening and feeding, thereby realizing the automatic recovery and avoidance of the screening rod 101.

A card slot is provided on one side of the rotating seat 107, and a convex hole is provided on the upper side of the adapter seat 108. The convex hole extends to the rotating seat 107. A convex card piece 110 is slidably fitted on the inner side of the convex hole. A spring contraction column is provided at one end of the convex card piece 110 and one end of the convex hole. The convex card piece 110 is adapted to the card slot. When the screening rod 101 moves the magnetic steel body 7 to the discharge port 102, the convex card piece 110 disengages from the card slot.

Preferably, in order to further improve the stability of screening and feeding of the screening rod 101 and avoid the difficulty in stably separating the magnetic steel bodies 7 that are adsorbed together only under the support of the torsion spring, a convex clamping member 110 is provided. The convex clamping member 110 is movably arranged in the convex hole and can be engaged with the clamping slot. When the convex clamping member 110 is inserted into the clamping slot, the rotating seat 107 is stuck, so that the screening rod 101 and the rotating seat 107 cannot rotate relative to the adapter seat 108. At this time, the turntable 106 rotates, which can drive the screening rod 101 to stably separate and feed the magnetic steel body 7. Then the convex clamping member 110 is disengaged from the clamping slot, so that the rotating seat 107 can drive the screening rod 101 to rotate relatively, and the screening rod 101 can be retracted into the adapter slot 109 for avoidance, thereby achieving stable feeding of the screening rod 101.

The upper end of the convex clamping member 110 is rotatably connected to the second rotating rod 111, and the lower end of the top plate 501 is fixedly connected to the limiting ring 112. The limiting ring 112 coincides with the axis of the first rotating rod 105, and a connecting plate 113 is fixedly connected between the limiting ring 112 and the limiting frame 103. The lower end of the limiting ring 112 is rotatably connected to the adapter seat 108. An outer arc surface 114 and an inner arc surface 115 are provided on the inner side of the limiting ring 112. The second rotating rod 111 adheres to the outer arc surface 114 and the inner arc surface 115 and rolls. When the second rotating rod 111 adheres to the outer arc surface 114 and rolls, the convex clamping member 110 is disengaged from the slot. When the second rotating rod 111 adheres to the inner arc surface 115 and rolls, the convex clamping member 110 is inserted into the slot.

Preferably, when it is necessary to control the movement of the convex clamping member 110, a limit ring 112 is provided. Specifically, under the action of the spring contraction column, the second rotating rod 111 is always in contact with the inner wall of the limit ring 112 and rolls. An inner arc surface 115 and an outer arc surface 114 are provided on the inner wall of the limit ring 112. When the second rotating rod 111 is in contact with the outer arc surface 114 and rolls, the convex clamping member 110 is pulled under the contraction action of the spring contraction column, and the convex clamping member 110 is disengaged from the slot (as shown in FIG. 3 ). Conversely, when the second rotating rod 111 is in contact with the inner arc surface 115 and rolls, the convex clamping member 110 is stuck in the slot. Specifically, when screening and feeding are required, the second rotating rod 111 is restricted from rolling in the inner arc surface 115. At this time, the convex clamping member 110 is restricted from being stuck in the slot, thereby blocking the rotating seat 107. , so that the screening rod 101 can stably screen the magnetic steel body 7 for feeding. Then, when the screening rod 101 needs to be retracted, the rotating rod 111 at this time transitions from the inner arc surface 115 to the outer arc surface 114, so that the convex clamping piece 110 is disengaged from the slot, and the rotating seat 107 can drive the screening rod 101 to rotate to avoid it and retract it into the adapter slot 109 until the screening rod 101 is disengaged from the opening slot 104 and reset under the resetting action of the torsion spring member, and then the rotating rod 111 re-enters the inner arc surface 115, so that the convex clamping piece 110 can be re-engaged in the slot, and the screening rod 101 is limited to prepare for the next screening work, thereby realizing continuous and stable screening and feeding work, with a high degree of automation, and no need to use additional drive components to drive the convex clamping piece 110, saving costs.

The lower end of the rotating rod 105 is fixedly connected to the pulley 1 502, and one side of the pulley 1 502 is connected to the pulley 2 503. The lower end of the pulley 2 503 is fixedly connected to the middle transfer seat 201. The size of the pulley 2 503 is larger than that of the pulley 1 502. When the pulley 2 503 rotates half a circle, the pulley 1 502 rotates one circle. The upper end of the pulley 2 503 is fixedly connected to the rotating rod 3 504. The upper end of the rotating rod 3 504 passes through the support plate 5 and is fixedly connected to the motor part.

Preferably, a belt transmission mechanism is provided to interconnect the rotating rod 105 and the intermediate transfer seat 201. When the motor drives the rotating rod 3 504 and drives the intermediate transfer seat 201 to rotate, the pulley 1 502 is driven to rotate through the pulley 2 503, thereby driving the rotating rod 105 and the turntable 106 to rotate, and the size of the pulley 1 502 is set to be smaller than the pulley 2 503, so that the transmission ratios of the two are different, so that when the pulley 2 503 rotates half a circle, the pulley 1 502 rotates one circle, and the intermediate transfer seat 201 can drive a pair of limit sleeves 202 to rotate 180 degrees. When the work stations are alternated, the turntable 106 is also driven to rotate one circle, so as to accurately control the screening and unloading of a single magnetic steel body 7, so that when the empty limit sleeve 202 moves to the lower side of the discharge port 102, the magnetic steel body 7 immediately falls into the limit sleeve 202, and this is repeated to achieve continuous and orderly automatic loading, which is highly practical.

A fixing plate 205 is fixedly connected between the limiting sleeve 202 and the transfer seat 201. A pair of semicircular plates 203 are provided at the lower end of the limiting sleeve 202. The diameter of the semicircular plates 203 is equal to the diameter of the limiting sleeve 202. The pair of semicircular plates 203 supports the magnetic steel body 7 in the limiting sleeve 202.

One end of a pair of semicircular plates 203 is fixedly connected to a pair of hinge plates 204, and the pair of hinge plates 204 are staggered. One side of the fixed plate 205 is rotatably connected to a central column, which passes through the pair of hinge plates 204 and is rotatably connected thereto. One end of the pair of semicircular plates 203 is fixedly connected to a pair of opposite rods 206, and the pair of opposite rods 206 drives the pair of semicircular plates 203 to flip relative to each other with the central column as the axis.

Preferably, during the unloading process, the electromagnet block 301 needs to be lowered to adsorb the magnetic steel body 7, and lift it up to detach it from the limiting sleeve 202. After the limiting sleeve 202 is removed, the magnetic steel body 7 can fall from the unloading port 9 onto the feeding belt 8. However, the above technical solution can only be performed on qualified products, that is, only the magnetic steel body 7 with qualified magnetic strength can be adsorbed and lifted. In the detection process, unqualified products have low magnetic strength and cannot be adsorbed by the electromagnet block 301 and are taken away from the limiting sleeve 202. They cannot be unloaded normally and may even remain in the limiting sleeve 202. The subsequent process cannot be carried out normally. Therefore, a pair of semicircular plates 203 are provided. Specifically, the limit sleeve 202 is provided to be through from top to bottom, and a pair of openable and closable semicircular plates 203 are provided at the lower end. The magnetic steel body 7 falls into the limit sleeve 202, and the pair of semicircular plates 203 are combined to support it. Then the electromagnet block 301 performs adsorption detection on the magnetic steel body 7. After the detection is completed, the pair of semicircular plates 203 are unfolded, so that the inner magnetic steel body 7 falls, and the unloading is completed. The unloading stability is strong, and even the magnetic steel body 7 with unqualified magnetic strength can be stably unloaded, and the fault tolerance rate is high;

Specifically, when a pair of semicircular plates 203 need to be driven to expand or merge, a pair of square rods 206 drive the pair of semicircular plates 203 to rotate relative to each other about the central column as the axis, so that the pair of semicircular plates 203 are mutually expanded or merged.

A telescopic rod is provided at one end of the square rod 206, and a moving rod 207 is connected to one end of the telescopic rod. A V-shaped groove 208 is provided on the fixed plate 205, and a pair of moving rods 207 pass through the V-shaped groove 208 and move along it. The upper end of the moving rod 207 is rotatably connected to a slider 209, and a square frame 210 is slidably matched on the outer side of the pair of sliders 209. The lower end of the square frame 210 is slidably matched with the fixed plate 205. A plurality of spring telescopic rods 211 are provided at one end of the square frame 210, and the spring telescopic rods 211 are connected to the transfer seat 201.

A rotating column 4 is provided on one side of the magnetic attraction part 3, the upper end of the rotating column 4 is rotatably connected to the support plate 5, and a pushing rod 401 is eccentrically provided at the lower end of the rotating column 4. There is a distance difference between the lower end surface of the pushing rod 401 and the fixed plate 205, and the rotating column 4 is driven to rotate by the motor assembly.

Preferably, one end of the square rod 206 is connected to the moving rod 207 through a telescopic rod, and the moving rod 207 is limited in the V-shaped groove 208. When a pair of moving rods 207 move synchronously along the V-shaped groove 208, one end of a pair of square rods 206 is driven to move relatively tilted, and the telescopic rod is adapted to be telescopic, so that the square rod 206 drives a pair of semicircular plates 203 to rotate relative to the center column as the axis (as shown in FIG. 7), so that the magnetic steel body 7 can be unloaded;

Specifically, a slider 209 is rotatably connected to the upper end of the moving rod 207, and the slider 209 slides along the frame member 210 for guidance. In the initial state, under the action of the spring telescopic rod 211, the frame member 210 drives a pair of moving rods 207 to be at both ends of the V-shaped groove 208. When unloading is required, the frame member 210 is on one side of the pushing rod 401, and the motor assembly drives the rotating column 4 to rotate, driving the pushing rod 401 to move in a circle, thereby pushing the frame member 210 and the slider 209 to move, so that a pair of moving rods 207 are displaced along the V-shaped groove 208, thereby driving the semicircular plate 203 to unfold, and completing the unloading of the magnetic steel body 7. Only a single rotating column 4 and a pushing rod 401 need to be set to complete the alternating unloading of the magnetic steel body 7 in a pair of limiting sleeves 202, which is highly practical.

The lifting assembly includes a threaded sleeve 305, the lower end of which is fixedly connected to the displacement sensor 302, the threaded sleeve 305 passes through the support plate 5 and slides with it, the upper end of the threaded sleeve 305 is threadedly connected to a threaded rod 306, the upper end of the support plate 5 is fixedly connected to a motor base 402, the threaded sleeve 305 passes through the motor base 402 and slides with it, and a motor part is arranged at the upper end of the threaded rod 306.

Preferably, the threaded rod 306 is driven to rotate by a motor, thereby driving the threaded sleeve 305 to drive the displacement sensor 302 and the electromagnet block 301 to move up and down, thereby completing the detection of the magnetic steel body 7.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

The above is a detailed introduction to the continuous detection equipment for NdFeB magnets and its working method provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A continuous detection device for NdFeB magnets, comprising a workbench (2), a cylindrical barrel (1), a feeding belt (8), a support plate (5) and a magnetic suction part (3), characterized in that: A plurality of magnetic steel bodies (7) are vertically stacked in the cylindrical barrel (1); a discharge port (102) is arranged at the lower side of the cylindrical barrel (1); the discharge port (102) is staggered with the cylindrical barrel (1); the cylindrical barrel (1) passes through the support plate (5) and is fixedly connected thereto; a screening rod (101) is arranged at the lower side of the cylindrical barrel (1); the screening rod (101) rotates and moves the magnetic steel body (7) at the lower end of the cylindrical barrel (1) to the discharge port (102); The upper end of the workbench (2) is rotatably connected to a transfer seat (201), and a pair of limit sleeves (202) are provided at both ends of the transfer seat (201). The limit sleeves (202) are used to receive the magnetic steel body (7), and the transfer seat (201) is used to drive the pair of limit sleeves (202) to rotate and alternately connect with the discharge port (102) and the magnetic attraction part (3); The magnetic attraction portion (3) comprises an electromagnet block (301), a displacement sensor (302) is arranged on the upper side of the electromagnet block (301), a plurality of fixing rods (303) are fixedly connected to the lower end of the support plate (5), the lower ends of the fixing rods (303) are fixedly connected to a limiting disk (304), the electromagnet block (301) passes through the middle end of the limiting disk (304) and is gap-matched therewith, the lower end surface of the limiting disk (304) is flush with the upper end surface of the limiting sleeve (202), and a lifting component is arranged on the upper side of the displacement sensor (302), the lifting component drives the electromagnet block (301) to absorb and lift the magnetic steel body (7); A material discharge port (9) is provided through the upper side of the workbench (2), the material discharge port (9) is arranged correspondingly to the lower side of the magnetic attraction portion (3), and the feeding belt (8) is arranged at the lower side of the material discharge port (9). 2. The continuous detection device for NdFeB magnetic steel according to claim 1 is characterized in that: the lower end of the cylindrical tube (1) is fixedly connected to a limit frame (103), the height of the limit frame (103) is not less than the height of a single magnetic steel body (7), the lower side of one end of the limit frame (103) is fixedly connected to the discharge port (102), and an open groove (104) is provided on one side of the limit frame (103), and the screening rod (101) passes through the open groove (104) and moves the magnetic steel body (7) The upper end of the support plate (5) is provided with an adapting opening, a top plate (501) is fixedly connected in the adapting opening, the limiting frame (103) is fixed to the lower end of the top plate (501), the lower end of the top plate (501) is rotatably connected to a rotating rod 1 (105), the lower end of the rotating rod 1 (105) is passed through and fixedly connected to a rotating disk (106), a rotating seat (107) is provided on the upper side of the rotating disk (106), and one end of the rotating seat (107) is fixedly connected to the screening rod (101). 3. The continuous detection equipment for NdFeB magnets according to claim 2 is characterized in that: the turntable (106) is rotatably connected to the rotating seat (107), the rotating seat (107) is eccentrically arranged on one side of the turntable (106), the upper end of the turntable (106) is fixedly connected with an adapter seat (108), the rotating seat (107) is arranged at one end inside the adapter seat (108), an adapter groove (109) is opened at one end of the adapter seat (108), the length of the adapter groove (109) is equal to that of the screening rod (101), and a torsion spring is arranged between the rotating seat (107) and the turntable (106), and the torsion spring drives the screening rod (101) away from the adapter groove (109). 4. The continuous detection equipment for NdFeB magnets according to claim 3 is characterized in that: a slot is provided on one side of the rotating seat (107), a convex hole is provided on the upper side of the adapter seat (108), the convex hole extends to the rotating seat (107), a convex clamp (110) is slidably matched inside the convex hole, one end of the convex clamp (110) and one end of the convex hole are provided with a spring contraction column, the convex clamp (110) is adapted to the slot, and when the screening rod (101) moves the magnetic steel body (7) to the discharge port (102), the convex clamp (110) is separated from the slot. 5. The continuous detection device for NdFeB magnets according to claim 4 is characterized in that: the upper end of the convex clamp (110) is rotatably connected to the second rotating rod (111), the lower end of the top plate (501) is fixedly connected to a limit ring (112), the axis of the limit ring (112) coincides with the axis of the first rotating rod (105), a connecting plate (113) is fixedly connected between the limit ring (112) and the limit frame (103), and the limit ring (112) is fixedly connected to the limit frame (103). The lower end is rotatably connected to the adapter seat (108); an outer arc surface (114) and an inner arc surface (115) are provided on the inner side of the limit ring (112); the second rotating rod (111) rolls in contact with the outer arc surface (114) and the inner arc surface (115); when the second rotating rod (111) rolls in contact with the outer arc surface (114), the convex clamping member (110) is disengaged from the clamping slot; when the second rotating rod (111) rolls in contact with the inner arc surface (115), the convex clamping member (110) is clamped into the clamping slot. 6. The continuous detection equipment for NdFeB magnets according to claim 2 is characterized in that: the lower end of the rotating rod 1 (105) is fixedly connected to the pulley 1 (502), one side of the pulley 1 (502) is connected to the pulley 2 (503), the lower end of the pulley 2 (503) is fixedly connected to the middle rotating seat (201), the size of the pulley 2 (503) is larger than the pulley 1 (502), when the pulley 2 (503) rotates half a circle, the pulley 1 (502) rotates one circle, the upper end of the pulley 2 (503) is fixedly connected to the rotating rod 3 (504), the upper end of the rotating rod 3 (504) passes through the support plate (5) and is fixedly connected to the motor part. 7. The continuous detection device for NdFeB magnets according to claim 1 is characterized in that: a fixed plate (205) is fixedly connected between the limiting sleeve (202) and the transfer seat (201), a pair of semicircular plates (203) are arranged at the lower end of the limiting sleeve (202), the diameter of the semicircular plates (203) is equal to the diameter of the limiting sleeve (202), and the pair of semicircular plates (203) support the magnetic steel body (7) in the limiting sleeve (202); One end of a pair of semicircular plates (203) is fixedly connected to a pair of hinge plates (204), the pair of hinge plates (204) are arranged in a staggered manner, one side of the fixed plate (205) is rotatably connected to a central column, the central column penetrates the pair of hinge plates (204) and is rotatably connected thereto, one end of the pair of semicircular plates (203) is fixedly connected to a pair of opposite rods (206), the pair of opposite rods (206) drive the pair of semicircular plates (203) to flip relative to each other with the central column as the axis. 8. The continuous detection equipment for NdFeB magnets according to claim 7 is characterized in that: a telescopic rod is provided at one end of the square rod (206), one end of the telescopic rod is connected to a moving rod (207), a V-shaped groove (208) is penetrated on the fixed plate (205), a pair of moving rods (207) penetrate the V-shaped groove (208) and move along it, the upper end of the moving rod (207) is rotatably connected to a slider (209), the outer sides of the pair of sliders (209) are slidably matched with a square frame (210), the lower end of the square frame (210) is slidably matched with the fixed plate (205), and one end of the square frame (210) is provided with a plurality of spring telescopic rods (211), and the spring telescopic rods (211) are connected to the transfer seat (201); A rotating column (4) is provided on one side of the magnetic attraction portion (3); the upper end of the rotating column (4) is rotatably connected to the support plate (5); a push rod (401) is eccentrically provided at the lower end of the rotating column (4); a distance difference exists between the lower end surface of the push rod (401) and the fixed plate (205); and the rotating column (4) is driven to rotate by a motor assembly. 9. The continuous detection device for NdFeB magnets according to claim 8 is characterized in that: the lifting assembly includes a threaded sleeve (305), the lower end of the threaded sleeve (305) is fixedly connected to the displacement sensor (302), the threaded sleeve (305) passes through the support plate (5) and slides with it, the upper end of the threaded sleeve (305) is threadedly connected to a threaded rod (306), the upper end of the support plate (5) is fixedly connected to a motor base (402), the threaded sleeve (305) passes through the motor base (402) and slides with it, and the upper end of the threaded rod (306) is provided with a motor part. 10. The working method of the continuous detection device for NdFeB magnets according to claim 1, characterized in that it comprises the following steps: S1, rotating the screening rod (101) to move the magnetic steel body (7) at the bottom of the cylindrical barrel (1) to the discharge port (102); S2, the magnetic steel body (7) falls from the discharge port (102) into the limiting sleeve (202), and the transfer seat (201) drives the limiting sleeve (202) and the magnetic steel body (7) to rotate about the transfer seat (201), so that the limiting sleeve (202) drives the magnetic steel body (7) to move to the lower side of the magnetic attraction portion (3), and the limiting sleeve (202) at the other end returns to the lower side of the discharge port (102) to re-engage the magnetic steel body (7); S3, the limiting sleeve (202) is located at the lower side of the limiting plate (304), and the lifting assembly drives the electromagnet block (301) to pass through the limiting plate (304) and adsorb to the magnetic steel body (7); S4, the lifting assembly drives the electromagnet block (301) to rise and reset, driving the magnetic steel body (7) to rise synchronously and disengage from the limiting sleeve (202), until the magnetic steel body (7) is restricted by the limiting plate (304) and cannot rise, and the tension exerted on the electromagnet block (301) is detected by the displacement sensor (302); S5. Under the restriction of the limiting plate (304), until the electromagnet block (301) is separated from the magnetic steel body (7), the magnetic steel body (7) falls onto the upper side of the feeding belt (8) through the discharge port (9).