Device for grading sizes of magnetic assemblies

Abstract

The invention discloses a device for size grading of a magnetic assembly, and relates to the technical field of magnets, a material carrying platform is provided with material channels, the material channels comprise a feeding channel and at least two storage channels, the rear end of each material channel is communicated with a material moving channel, a detection area is arranged in the material moving channel, the position of the detection area corresponds to the feeding channel, and the detection area corresponds to the storage channels. The magnetic assemblies are moved out through the rear end of the feeding channel one by one, enter a detection area and enter the storage channels through the material moving channel, each storage channel is only suitable for storing the magnetic assemblies in the left-right width size range, and the width ranges of the magnetic assemblies adaptive to different storage channels are different. The visual detection system detects the left-right width size of the magnetic assembly in the detection area; the carrying system can drive the detected magnetic assemblies to move to the rear sides of the corresponding storage material channels along the material moving material channels. The ejection system pushes the magnetic assembly at the rear end of the storage material channel into the storage material channel. According to the invention, automatic grading of the sizes of the magnetic assemblies can be completed.

Description

Technical Field

[0001] This invention relates to the field of magnet technology, and more specifically to a device for grading the size of magnetic components. Background Technology

[0002] Magnets are widely used in daily life, especially in the 3C market. In practical applications, not only single magnets but also magnetic assemblies are used. Properly assembled magnetic assemblies can not only improve the performance of magnets but also better adapt to various 3C products. However, some products have limited internal space and require consistency, so the size of the magnetic assemblies needs to be strictly controlled. During the production process, due to factors such as fluctuations in material properties and deviations in manufacturing processes, the size of magnetic assemblies may vary. By categorizing, magnetic assemblies with similar sizes can be grouped together, ensuring that the performance indicators of products of the same batch and model are relatively stable. However, the current method of grading magnetic components involves workers using micrometers to measure each component and then grading it. This requires a high level of professional competence from the operators, who must be able to use measuring tools and place the magnetic components in the designated positions after measurement. Over time, this can lead to errors, resulting in incorrect grading and extremely low efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a device for grading the size of magnetic components, which can automatically grade the size of magnetic components and improve the efficiency of magnetic component grading.

[0004] To achieve the above objectives, the solution of the present invention is as follows: A device for grading the size of magnetic components, comprising: The material loading platform is equipped with multiple side-by-side and front-to-back material channels, including one feeding channel and at least two storage channels. The rear end of each material channel is connected to a left-to-right extending transfer channel. The transfer channel has a detection area, which is located at the rear end of the feeding channel. Magnetic components can be moved out one by one through the rear end of the feeding channel, enter the detection area, and then enter the storage channel through the transfer channel. Each storage channel is only suitable for storing one type of magnetic component with a left-right width range. The width range of magnetic components that different storage channels are suitable for are different, thereby realizing the classification of magnetic components according to width range. A visual inspection system is used to detect the left and right width dimensions of magnetic components located within the inspection area; The conveying system can move and adjust the magnetic components in the detection area to the visual range of the vision detection system, and can also move the detected magnetic components along the material conveying channel to the rear of the corresponding storage channel. The ejection system has multiple ejection components located behind the loading platform. Each ejection component corresponds to a storage channel. The ejection components are used to push the magnetic components, which are moved by the conveying system to the rear of the storage channel, into the corresponding storage channel.

[0005] Furthermore, the magnetic assembly includes three magnets and a base plate. The three magnets are sequentially assembled on the base plate in the order of left, middle and right. The rear side of the middle magnet has a small isosceles trapezoidal head protruding from the back. The top side of the small head slopes downward from front to back. Multiple magnetic assemblies are arranged in a row. The material loading platform is equipped with an identification component, which can guide the orientation of the small head of the magnetic assembly placed in the feeding channel. The marking component is a marking magnetic assembly. The marking magnetic assembly has the same shape and structure as the magnetic assembly. The orientation of the small end of the marking magnetic assembly is the same as the orientation of the small end of the magnetic assembly placed in the feed channel.

[0006] Furthermore, it also includes a pushing component, which can push the magnetic components in the feeding channel into the detection area in the transfer channel one by one. The marking magnetic components are set on the rear side of the transfer channel and on the rear side of the detection area, so as to attract and assist the magnetic components in the feeding channel to enter the detection area.

[0007] Furthermore, a first detector and multiple second detectors are installed in the material transfer channel. The first detector is located in the detection area and is used to detect whether the magnetic component in the feeding channel has entered the detection area. One second detector is set for one storage channel and is used to detect whether the handling system has driven the magnetic component to move to the rear side of the corresponding storage channel.

[0008] Furthermore, a material shortage detector is installed in the feeding channel to detect whether there is a lack of magnetic components in the feeding channel, thereby reminding the staff to replenish the material; A full material detector is installed in the storage channel to detect whether the storage channel is full of magnetic components, thereby reminding the staff to remove the material.

[0009] Specifically, the vision inspection system includes a Z-axis movement module, a camera, and a light source; The Z-axis moving module has a power end that can move up and down; The camera is set on the power end of the Z-axis moving module and is located directly above the detection area with the camera lens pointing downwards. The up-and-down movement of the power end of the Z-axis moving module can drive the camera to move up and down. The camera can take pictures of the magnetic components in the detection area and measure the left and right width dimensions of the magnetic components. The camera is connected to the PLC to output the dimensions of the magnetic components to the PLC, so that the PLC can select the appropriate storage channel for the magnetic components. The light source is positioned above the material carrier platform. It is a blue strip light source that can directly illuminate the magnetic components in the detection area to highlight the outline of the magnetic components.

[0010] Specifically, the material handling system includes an XZ axis moving module and a positioning block; The XZ axis moving module includes a power end that can move left and right and up and down; The positioning block is set on the power end of the XZ axis moving module and moves up and down and left and right accordingly. The lower end of the positioning block extends downward and is provided with two clamping plates. The two clamping plates are spaced apart from each other, and the distance between them is greater than the width of the material channel, so as to form a receiving position between the two clamping plates. The receiving position is used to accommodate the magnetic component. When the power end of the XZ axis moving module drives the positioning block to move to the left or right and moves it above the magnetic component in the detection area, and when it drives the positioning block to move downward, it can make the magnetic component located in the receiving position. When the power end moves to the left, the right clamping plate pushes the magnetic component in the receiving position to the left, and when the power end moves to the right, the left clamping plate pushes the magnetic component in the receiving position to the right.

[0011] Specifically, the top material assembly includes a top material cylinder and a top material plate; The top-loading cylinder has a power output end that can move back and forth; One end of the top plate is fixed to the power output end of the top plate cylinder, and the other end extends forward to the rear side of the material transfer channel and corresponds to the storage channel. When the power output end of the top plate cylinder moves forward, it can drive the top plate to move forward, thereby pushing the magnetic component located at the rear end of the storage channel into the storage channel.

[0012] Specifically, there are seven material channels on the loading platform. The middle material channel is the feeding channel, and the storage channels are divided into the first storage channel, the second storage channel, the third storage channel, the fourth storage channel, the NG material storage channel, and the spare storage channel. The first, second, and third storage channels are located to the left of the feed channel, while the fourth, NG material storage channel, and spare storage channel are located to the right of the feed channel. Magnets with a width range of 10.13~10.26mm are considered NG (non-quality) materials and should be stored in the NG material storage channel. The left-right width of the magnetic component in the first storage channel ranges from 10.13 to 10.16 mm; The left and right width of the magnetic components in the second storage channel ranges from 10.161 to 10.20 mm; The left and right width of the magnetic components in the third storage channel ranges from 10.201 to 10.23 mm; The left and right width of the magnetic component in the fourth storage channel ranges from 10.231 to 10.260 mm; The spare storage material is for use when other sizes need to be set.

[0013] The present invention also provides a method for adjusting the position of a magnetic component, applied to the above-described device for grading the size of magnetic components, comprising the following steps: S10: Move the positioning block left and right to the top of the detection area, and move the positioning block down to place the magnetic component of the detection area in the receiving position. Record the position of the positioning block at this time as position one, and record the pulse value of the XZ axis moving module as pulse value one when the positioning block is in position one. S20: If the left end of the magnetic component exceeds the visual range of the vision detection system, the positioning block moves to the right first, causing the left clamping plate to move the magnetic component to the right first. The position of the positioning block after the movement is recorded as position two, and the pulse value of the XZ axis movement module at position two is recorded as pulse value two. Then the positioning block moves to the left, causing the right clamping plate to move the magnetic component to the left. The position of the positioning block after the movement is recorded as position three, and the pulse value of the XZ axis movement module at position three is recorded as pulse value three. If the right end of the magnetic component exceeds the visual range of the vision detection system, the positioning block moves to the left first, causing the right clamping plate to move the magnetic component to the left. The position after the positioning block moves to the left is recorded as position two, and the pulse value of the XZ axis movement module at position two is recorded as two. Then the positioning block moves to the right, causing the left clamping plate to push the magnetic component to the right. The position after the positioning block moves to the right is recorded as position three, and the pulse value of the XZ axis movement module at position three is recorded as three. S30: After taking a picture through the vision inspection system, determine whether the magnetic component after being moved is within the visual range of the vision inspection system; If, in step S20, the left end of the magnetic component is outside the visual range, and after moving it to the right, then to the left and taking a picture, the left end of the magnetic component is still outside the visual range, then the magnetic component continues to be moved to the right and then to the left, but the distance the positioning block moves the magnetic component to the left is reduced until the magnetic component is within the visual range. If, in step S20, the right end of the magnetic component is outside the visual range, and after moving left, moving right, and taking a picture, its right end is still outside the visual range, then the magnetic component will continue to move left and then right, but the distance the positioning block moves the magnetic component to the right will be reduced until the magnetic component is within the visual range. S40: Outputs position two, position three, pulse value two, and pulse value three when the magnetic component was moved into the visual range for the last time. After that, when the magnetic component is positioned, pulse value one, pulse value two, and pulse value three are sequentially input into the XZ axis moving module. The XZ axis moving module can then drive the positioning block to automatically move the magnetic component into the visual range.

[0014] After adopting the above solution, the beneficial effects of the present invention are as follows: This invention achieves automated grading of magnetic components by coordinating a loading platform, a vision inspection system, a conveying system, and an ejection system. Specifically, the device uses a specially laid-out material channel and transfer channel to ensure that magnetic components enter the inspection area in an orderly manner. The vision inspection system uses a non-contact method to accurately measure the left and right width dimensions of the magnetic components, replacing the traditional manual measurement method using a micrometer, effectively avoiding errors and inefficiencies that may be caused by human operation. Subsequently, the conveying system accurately transports the magnetic components to the rear end of the corresponding storage channel based on the inspection results. Finally, the ejection system pushes them into the designated storage channel. This series of automated operations not only significantly improves the efficiency and accuracy of magnetic component grading and ensures the consistency of dimensions within the same batch of products, but also reduces the skill requirements and labor intensity of operators, achieving automation and standardization of the production process. Furthermore, the device structure of this invention is relatively simple, and the manufacturing cost is low. This invention provides a clear and unique physical identifier for each magnetic component by precisely sorting the magnetic components according to their size into different storage channels. This sorting result itself can serve as a direct and reliable basis for quality traceability in subsequent production and use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 yes Figure 2 Enlarged view of part A; Figure 4 This is a schematic diagram of the material loading platform of the present invention; Figure 5 This is a schematic diagram of the transport system of the present invention; Figure 6 This is a schematic diagram of the structure of the visual inspection system of the present invention; Figure 7 This is a schematic diagram of the rear structure of the magnetic component of the present invention.

[0016] Label Explanation: 10. Material loading platform; 11. Feed chute; 111. Material shortage detector; 12. Storage chute; 121. First storage chute; 122. Second storage chute; 123. Third storage chute; 124. Fourth storage chute; 125. No-load material storage chute; 126. Backup storage chute; 127. Full material detector; 13. Transfer chute; 131. First detector; 132. Second detector; 133. Vacuum suction orifice; 134. Detection area; 2 0. Vision inspection system; 21. Z-axis moving module; 22. Camera; 221. Lens; 23. Light source; 24. Support; 30. Handling system; 31. XZ-axis moving module; 32. Positioning block; 321. Clamping plate; 322. Accommodation position; 40. Ejection system; 41. Ejection assembly; 411. Ejection cylinder; 412. Ejection plate; 50. Marking component; 51. Marking magnetic assembly; 60. Magnetic assembly; 61. Small head; 62. Magnet; 63. Base plate. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 7 As shown, this embodiment provides a device for grading the size of magnetic components 60, including a loading platform 10, a vision inspection system 20, a conveying system 30, and an ejection system 40.

[0019] The material loading platform 10 is provided with multiple side-by-side and front-to-back material channels, including a feeding channel 11 and at least two storage channels 12. The rear end of each material channel is connected to a left-to-right extending transfer channel 13. The transfer channel 13 is provided with a detection area 134, which is located at the rear end of the feeding channel 11. Magnetic components 60 can be moved out one by one through the rear end of the feeding channel 11, enter the detection area 134, and then enter the storage channel 12 through the transfer channel 13. Each storage channel 12 is only suitable for storing one type of magnetic component 60 with a left-right width range. The width range of magnetic components 60 adapted to different storage channels 12 is different, thereby realizing the classification of magnetic components 60 according to width range. Specifically, the detection area 134 can only accommodate one magnetic component 60 at a time. The next magnetic component 60 is located in the feeding channel 11, ready to enter the detection area 134. In one specific embodiment, seven material channels are provided on the material loading platform 10. The middle material channel is the feeding channel 11. The storage channels 12 are divided into a first storage channel 121, a second storage channel 122, a third storage channel 123, a fourth storage channel 124, an NG material storage channel 125, and a spare storage channel 126. The first storage channel 121, the second storage channel 122, and the third storage channel 123 are located to the left of the feeding channel 11, and the fourth storage channel 124, the NG material storage channel 125, and the spare storage channel 126 are located to the right of the feeding channel 11. The magnet width ranges from 10.13 to 10.26 mm. Magnetic components 60 exceeding 10.13 to 10.26 mm are... NG material enters the NG material storage channel 125; the magnetic component 60 in the first storage channel 121 has a width range of 10.13~10.16mm; the magnetic component 60 in the second storage channel 122 has a width range of 10.161~10.20mm; the magnetic component 60 in the third storage channel 123 has a width range of 10.201~10.23mm; the magnetic component 60 in the fourth storage channel 124 has a width range of 10.231~10.260mm; the spare storage material is used when other dimensions need to be set; specifically, the feeding channel 11, storage channel 12, and transfer channel 13 are all set in the form of grooves on the upper surface of the loading platform 10. The vision inspection system 20 is used to detect the left and right width dimensions of the magnetic component 60 located within the inspection area 134. Specifically, the vision inspection system 20 includes a Z-axis moving module 21, a camera 22, and a light source 23. The Z-axis moving module 21 has a power end capable of vertical movement. The camera 22 is mounted on the power end of the Z-axis moving module 21 and is positioned directly above the inspection area 134, with its lens 221 pointing downwards. The vertical movement of the power end of the Z-axis moving module 21 drives the camera 22 to move up and down. The camera 22 can take pictures of the magnetic component 60 in the inspection area 134 and measure its left and right width dimensions. The camera 22 is connected to a PLC to output the dimensions of the magnetic component 60 to the PLC, allowing the PLC to select a suitable storage channel 12 for the magnetic component 60. The light source 23 is positioned above the loading platform 10 and uses a blue strip light source 23. The light source 23 can directly illuminate the magnetic component 60 within the detection area 134 to highlight its outline. The position and incident angle of the light source 23 are adjustable. Specifically, the light source 23 is adjustablely mounted above the material platform 10 via a bracket 24. It is understood that using blue light has the following advantages: blue light has a shorter wavelength, allowing for higher image resolution, making it suitable for detecting very small dimensions. Since the material being measured is the magnetic component 60, the blue light will produce clearer specular and diffuse reflections on the metal, helping to highlight the outline features. When using the blue light source 23, adding a filter of the corresponding wavelength in front of the camera 22 can almost completely filter out other ambient light, reducing instability caused by environmental factors and improving detection accuracy. Therefore, when using blue light in conjunction with the camera 22 to observe the outline of the blue line on the surface, accurate outline data can be obtained, which is advantageous for measuring dimensions such as width.

[0020] The conveying system 30 can move and adjust the magnetic component 60 within the detection area 134 to the visual range of the vision detection system 20 for positioning the magnetic component 60, and can also move the detected magnetic component 60 along the material transfer channel 13 to the rear side of the corresponding storage channel 12. Specifically, the conveying system 30 includes an XZ axis moving module 31 and a positioning block 32. The XZ axis moving module 31 includes a power end that can move left and right and up and down. The positioning block 32 is set on the power end of the XZ axis moving module 31 and moves up and down and left and right accordingly. The lower end of the positioning block 32 extends downward and is provided with two clamping plates 321. The two clamping plates 321 are spaced apart from each other, and the distance between them is greater than the left and right width of the material channel (feed channel 11, storage channel 12) to form a receiving position 322 between the two clamping plates 321. The receiving position 322 is used to receive the magnetic component 60. When the power end of the XZ axis moving module 31 drives the positioning block 32 to move to the left or right and move it above the magnetic component 60 in the detection area 134, and drives the positioning block 32 to move downward, the magnetic component 60 can be located in the receiving position 322. When the power end moves to the left, the right clamping plate 321 pushes the magnetic component 60 in the receiving position 322 to the left, and when the power end moves to the right, the left clamping plate 321 pushes the magnetic component 60 in the receiving position 322 to the right. Specifically, the conveying system 30 is set to delay and stop when it moves the magnetic component 60 to the rear side of the storage channel 12, so that the magnetic component 60 stops moving when it is within the width range of the storage channel 12. This is a conventional technical means in the field. The specific delay and stop time is set according to the specific application scenario and is not limited here. Specifically, when operating the device of this invention, debugging is required first. The debugging process is as follows: The magnetic component 60 is allowed to enter the detection area 134. The positioning block 32 is moved left and right, and then the positioning block 32 is lowered so that the magnetic component 60 is positioned between the two clamping plates 321. At this time, the position of the power end of the XZ-axis moving module 31 is defined as position one. A pulse value of the XZ-axis moving module 31 corresponding to position one is output and defined as the first pulse value. If the left end of the magnetic component 60 exceeds the field of view of the visual detection system 20, the pulse value at the power end of the XZ-axis moving module 31 is... Driven by the movement, the positioning block 32 moves to the right, causing the left clamping plate 321 to push against the magnetic component 60 and move to the right. After the movement is completed, the position of the power end of the XZ axis moving module 31 is recorded. This position is position two, and the second pulse value corresponding to position two is output. Then, driven by the power end of the XZ axis moving module 31, the positioning block 32 moves to the left, causing the right clamping plate 321 to push against the magnetic component 60 and move to the left. After the movement is completed, the position of the power end of the XZ axis moving module 31 is recorded. This position is position three, and the third pulse value corresponding to position three is output. Then, the positioning block 32 moves to the right. 2. Raise the magnetic component 60 and observe its position. If the magnetic component 60 is already within the field of view of the detection system, no further adjustment is needed. During subsequent positioning, simply input the first pulse value, the second pulse value, and the third pulse value to the XZ axis moving module 31. The power end of the XZ axis moving module 31 will then drive the positioning block 32 to move sequentially to position one, position two, and position three, automatically moving the magnetic component 60 into the visual field of the vision detection system 20, thus completing the positioning of the magnetic component 60. If the magnetic component 60 is moved to the left by the right clamping plate 321, the magnetic component... If component 60 has not yet fully entered the visual range, adjust the distance of right and left movement. Then, driven by the XZ axis movement module 31, continue to move to the right first, record the position, and output the corresponding pulse value. Then move to the left, record the position, and output the corresponding pulse value, until the magnetic component 60 is fully entered the visual range. Record the position of the last right and left movement of the XZ axis movement module 31 and the corresponding pulse value. If the right end of the magnetic component 60 is outside the field of view, move to the left first and then to the right. The debugging process and principle are the same as the above process and principle.

[0021] The ejection system 40 has multiple ejector components 41 located behind the loading platform 10. Each ejector component 41 corresponds to a storage channel 12. The ejector component 41 is used to push the magnetic component 60, which is moved by the conveying system 30 to the rear end of the storage channel 12, into the corresponding storage channel 12. Specifically, the ejector component 41 includes an ejector cylinder 411 and an ejector plate 412. The ejector cylinder 411 has a power output end that can move back and forth. One end of the ejector plate 412 is fixed to the power output end of the ejector cylinder 411, and the other end extends forward to the rear side of the transfer channel 13 and corresponds to the storage channel 12. When the power output end of the ejector cylinder 411 moves forward, it can drive the ejector plate 412 to move forward, thereby pushing the magnetic component 60, which is located in the transfer channel 13 and at the rear end of the storage channel 12, into the storage channel 12.

[0022] Furthermore, the magnetic assembly 60 includes three magnets 62 and a base plate 63. The three magnets 62 are sequentially assembled on the base plate 63 in the order of left, middle and right. The rear side of the middle magnet 62 has a trapezoidal small head 61 protruding from its rear side. The top side of the small head 61 slopes downward from front to back. Multiple magnetic assemblies 60 are arranged in a row. The loading platform 10 is provided with an identification component 50, which can guide the orientation of the small head 61 of the magnetic assembly 60 placed in the feeding channel 11. Preferably, the identification component 50 is an identification magnetic assembly 51. The identification magnetic assembly 51 has the same shape and structure as the magnetic assembly 60. The orientation of the small head of the identification magnetic assembly 51 is the orientation of the small head 61 of the magnetic assembly 60 placed in the feeding channel 11.

[0023] Furthermore, it also includes a pushing component, which can push the magnetic components 60 in the feeding channel 11 into the detection area 134 in the transfer channel 13 one by one. The marking magnetic component 51 is set on the rear side of the transfer channel 13 and located on the rear side of the detection area 134, so as to attract and assist the magnetic components 60 in the feeding channel 11 to enter the detection area 134. Specifically, the specific structure of the pushing component is not limited, as long as it can push the magnetic components in the feeding channel 11 into the detection area 134 one by one.

[0024] Furthermore, a first detector 131 and multiple second detectors 132 are provided in the material transfer channel 13. The first detector 131 is located in the detection area 134 and is used to detect whether the magnetic component 60 in the feeding channel 11 has entered the detection area 134. One second detector 132 is set for one storage channel 12 and is used to detect whether the conveying system 30 has driven the magnetic component 60 to move to the rear side of the corresponding storage channel 12. Specifically, both the first detector 131 and the second detector 132 are preferably optical fibers. By blocking the optical fiber in the detection area 134 (i.e., the first detector 131) by the magnetic component 60, a change in the optical fiber signal occurs, thereby determining whether the magnetic component 60 has entered the detection area 134. Similarly, by blocking the optical fiber (i.e., the second detector 132) by the magnetic component 60, a change in the optical fiber signal occurs, thereby determining whether the magnetic component 60 has been driven to the rear side of the storage channel by the conveying system 30. Specifically, within the first detection area 134, vacuum suction holes 133 are provided on both sides of the optical fiber. The vacuum suction holes 133 are connected to a vacuum generator. When the magnetic component 60 is positioned within the visual range of the vision detection system 20, the magnetic component 60 covers the optical fiber and the vacuum suction holes 133. At this time, the vacuum generator is activated to adsorb and fix the magnetic component 60.

[0025] Furthermore, a material shortage detector 111 is installed in the feeding channel 11 to detect whether the magnetic component 60 is missing, thereby reminding the operator to replenish the material; a full material detector 127 is installed in the storage channel 12 to detect whether the storage channel 12 is full of magnetic components 60, thereby reminding the operator to remove the material; preferably, both the material shortage detector 111 and the full material detector 127 are preferably optical fibers, with the optical fiber in the feeding channel 11 located at its front end, so that when the magnetic component 60 in the feeding channel 11 moves backward... When the magnetic component 60 moves forward, the optical fiber at the front end of the feeding channel 11 (i.e., the low material detector 111) will be exposed and lit up, resulting in a change in the optical fiber signal, which will remind the staff to replenish the magnetic component 60. The optical fiber in the storage channel 12 is located at its front end. When the magnetic component 60 in the storage channel 12 moves forward, the optical fiber at the front end of the storage channel 12 (i.e., the full material detector 127) will be covered and blocked by the magnetic component 60, resulting in a change in the optical fiber signal, which indicates that the storage channel 12 is full, and thus reminds the staff to remove the magnetic component 60.

[0026] The working principle of this invention is as follows: The magnetic components 60 in the feeding channel 11 are pushed one by one into the detection area 134 by the pushing component. The vision detection system 20 takes pictures of the magnetic components 60 and determines whether the left or right end of the magnetic component 60 is outside its field of view. Then, the positioning block 32 is moved above the positioning block 32 by the power end of the XZ axis moving module 31. The positioning block 32 moves down and then the magnetic component 60 is placed in the receiving position 322. The positioning block 32 is moved to move the magnetic component 60 into the field of view of the vision detection system 20. Then the positioning block 32 is moved to an idle position. The left and right width of the magnetic component 60 is visually detected. The PLC is used to screen the grade to which the magnetic component 60 belongs. Then, the magnetic component 60 is moved along the transfer channel 13 to the rear side of the corresponding storage channel 12 by the XZ axis moving module 31 and the positioning block 32. The magnetic component 60 located at the rear side of the storage channel 12 is pushed into the storage channel 12 by the corresponding ejector component 41 to complete the classification.

[0027] Understandably, since the magnetic component 60 is small in size and the difference between magnetic components 60 of different width ranges is also small, if the visual range of the vision inspection system 20 is set too large, it will be easily affected by the surrounding environment of the detection area 134, resulting in the inability to accurately identify the size of the magnetic component 60. Therefore, the field of view of the vision inspection system 20 is only focused within the detection area 134 to avoid the influence of the surrounding environment. However, since the visual range is small and the width of the feed channel 11 in the left and right directions is slightly larger than that of the magnetic component 60, the magnetic component 60 may be deviated to the left or right within the feed channel 11. This causes the left or right end of the magnetic component 60 to exceed the range of the vision inspection system 20 after it enters the detection area 134 from the feed channel 11. Therefore, the present invention also discloses a method for adjusting the position of a magnetic component 60, applied to the above-described device for grading the size of the magnetic component 60, comprising the following steps: S10: Move the positioning block 32 left and right to the top of the detection area 134, and move the positioning block 32 down to place the magnetic component 60 of the detection area 134 in the receiving position 322. Record the position of the positioning block 32 at this time as position one, and record the pulse value of the XZ axis moving module 31 when the positioning block 32 is in position one as pulse value one. S20: If the left end of the magnetic component 60 exceeds the visual range of the vision detection system 20, the positioning block 32 moves to the right first, causing the left clamping plate 321 to drive the magnetic component 60 to move to the right first. The position of the positioning block 32 after the movement is recorded as position two, and the pulse value of the XZ axis movement module 31 at position two is recorded as pulse value two. Then the positioning block 32 moves to the left, causing the right clamping plate 321 to drive the magnetic component 60 to move to the left. The position of the positioning block 32 after the movement is recorded as position three, and the pulse value of the XZ axis movement module 31 at position three is recorded as pulse value three. If the right end of the magnetic component 60 exceeds the visual range of the vision detection system 20, the positioning block 32 first moves to the left, causing the right clamping plate 321 to drive the magnetic component 60 to move to the left. The position of the positioning block 32 after moving to the left is recorded as position two, and the pulse value of the XZ axis movement module 31 at position two is recorded as pulse two. Then the positioning block 32 moves to the right, causing the left clamping plate 321 to push the magnetic component 60 to move to the right. The position of the positioning block 32 after moving to the right is recorded as position three, and the pulse value of the XZ axis movement module 31 at position three is recorded as pulse three. S30: After taking a picture by the vision inspection system 20, determine whether the magnetic component 60 after being moved is within the visual range of the vision inspection system 20; If, in step S20, the left end of the magnetic component 60 is outside the visual range, and after moving it to the right, then to the left and taking a picture, the left end of the magnetic component 60 is still outside the visual range, then the magnetic component 60 continues to be moved to the right and then to the left, but the distance that the positioning block 32 moves the magnetic component 60 to the left is reduced until the magnetic component 60 is within the visual range. If, in step S20, the right end of the magnetic component 60 is outside the visual range, and after moving left, moving right, and taking a picture, its right end is still outside the visual range, then the magnetic component 60 will continue to move left and then right, but the distance that the positioning block 32 moves the magnetic component 60 to the right will be reduced until the magnetic component 60 is within the visual range. S40: Output the position two, position three, pulse value two, and pulse value three when the magnetic component 60 was moved into the visual range for the last time. After that, when the magnetic component 60 is positioned, the pulse value one, pulse value two, and pulse value three are sequentially input into the XZ axis moving module 31. The XZ axis moving module 31 can drive the positioning block 32 to automatically move the magnetic component 60 into the visual range.

[0028] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. All equivalent changes made based on the key design features of this case shall fall within the protection scope of this case.

Claims

1. A device for grading the size of magnetic components, characterized in that: include The material loading platform is equipped with multiple side-by-side and front-to-back material channels, including one feeding channel and at least two storage channels. The rear end of each material channel is connected to a left-to-right extending transfer channel. The transfer channel has a detection area, which is located at the rear end of the feeding channel. Magnetic components can be moved out one by one through the rear end of the feeding channel, enter the detection area, and then enter the storage channel through the transfer channel. Each storage channel is only suitable for storing one type of magnetic component with a left-right width range. The width range of magnetic components that different storage channels are suitable for are different, thereby realizing the classification of magnetic components according to width range. A visual inspection system is used to detect the left and right width dimensions of magnetic components located within the inspection area; The conveying system can move and adjust the magnetic components in the detection area to the visual range of the vision detection system, and can also move the detected magnetic components along the material conveying channel to the rear of the corresponding storage channel. The ejection system has multiple ejection components located behind the loading platform. Each ejection component corresponds to a storage channel. The ejection components are used to push the magnetic components, which are moved by the conveying system to the rear of the storage channel, into the corresponding storage channel.

2. The device for grading the size of magnetic components as described in claim 1, characterized in that: The magnetic assembly includes three magnets and a base plate. The three magnets are sequentially assembled on the base plate in the order of left, middle and right. The rear side of the magnet in the middle has a small isosceles trapezoidal head protruding from the back. The top side of the small head slopes downward from front to back. Multiple magnetic assemblies are arranged in a row. The material loading platform is equipped with an identification component, which can guide the orientation of the small head of the magnetic assembly placed in the feeding channel. The marking component is a marking magnetic assembly. The marking magnetic assembly has the same shape and structure as the magnetic assembly. The orientation of the small end of the marking magnetic assembly is the same as the orientation of the small end of the magnetic assembly placed in the feed channel.

3. The device for grading the size of magnetic components as described in claim 2, characterized in that: It also includes a pushing component, which can push the magnetic components in the feeding channel into the detection area in the transfer channel one by one. The marking magnetic components are set on the rear side of the transfer channel and on the rear side of the detection area so as to attract and assist the magnetic components in the feeding channel to enter the detection area.

4. The device for grading the size of magnetic components as described in claim 1, characterized in that: A first detector and multiple second detectors are installed in the material transfer channel. The first detector is located in the detection area and is used to detect whether the magnetic component in the feeding channel has entered the detection area. One second detector is set for one storage channel and is used to detect whether the handling system has driven the magnetic component to move to the rear side of the corresponding storage channel.

5. The device for grading the size of magnetic components as described in claim 1, characterized in that: A material shortage detector is installed in the feeding channel to detect whether there is a lack of magnetic components in the feeding channel, thereby reminding the staff to replenish the material; A full material detector is installed in the storage channel to detect whether the storage channel is full of magnetic components, thereby reminding the staff to remove the material.

6. The device for grading the size of magnetic components as described in claim 1, characterized in that: The vision inspection system includes a Z-axis movement module, a camera, and a light source; The Z-axis moving module has a power end that can move up and down; The camera is set on the power end of the Z-axis moving module and is located directly above the detection area with the camera lens pointing downwards. The up-and-down movement of the power end of the Z-axis moving module can drive the camera to move up and down. The camera can take pictures of the magnetic components in the detection area and measure the left and right width dimensions of the magnetic components. The camera is connected to the PLC to output the dimensions of the magnetic components to the PLC, so that the PLC can select the appropriate storage channel for the magnetic components. The light source is positioned above the material carrier platform. It is a blue strip light source that can directly illuminate the magnetic components in the detection area to highlight the outline of the magnetic components.

7. The device for grading the size of magnetic components as described in claim 1, characterized in that: The material handling system includes an XZ axis moving module and a positioning block; The XZ axis moving module includes a power end that can move left and right and up and down; The positioning block is set on the power end of the XZ axis moving module and moves up and down and left and right accordingly. The lower end of the positioning block extends downward and is provided with two clamping plates. The two clamping plates are spaced apart from each other, and the distance between them is greater than the width of the material channel, so as to form a receiving position between the two clamping plates. The receiving position is used to accommodate the magnetic component. When the power end of the XZ axis moving module drives the positioning block to move to the left or right and moves it above the magnetic component in the detection area, and when it drives the positioning block to move downward, it can make the magnetic component located in the receiving position. When the power end moves to the left, the right clamping plate pushes the magnetic component in the receiving position to the left, and when the power end moves to the right, the left clamping plate pushes the magnetic component in the receiving position to the right.

8. The device for grading the size of magnetic components as described in claim 1, characterized in that: The top material assembly includes a top material cylinder and a top material plate; The top-loading cylinder has a power output end that can move back and forth; One end of the top plate is fixed to the power output end of the top plate cylinder, and the other end extends forward to the rear side of the material transfer channel and corresponds to the storage channel. When the power output end of the top plate cylinder moves forward, it can drive the top plate to move forward, thereby pushing the magnetic component located at the rear end of the storage channel into the storage channel.

9. The device for grading the size of magnetic components as described in claim 1, characterized in that: The material loading platform is equipped with seven material channels. The middle material channel is the feeding material channel, and the storage material channels are divided into the first storage material channel, the second storage material channel, the third storage material channel, the fourth storage material channel, the NG material storage material channel, and the spare storage material channel. The first, second, and third storage channels are located to the left of the feed channel, while the fourth, NG material storage channel, and spare storage channel are located to the right of the feed channel. Magnets with a width range of 10.13~10.26mm are considered NG (non-quality) materials and should be stored in the NG material storage channel. The left-right width of the magnetic component in the first storage channel ranges from 10.13 to 10.16 mm; The left and right width of the magnetic components in the second storage channel ranges from 10.161 to 10.20 mm; The left and right width of the magnetic components in the third storage channel ranges from 10.201 to 10.23 mm; The left and right width of the magnetic component in the fourth storage channel ranges from 10.231 to 10.260 mm; The spare storage material is for use when other sizes need to be set.

10. A method for adjusting the position of a magnetic component, applied to the device for grading the size of the magnetic component as described in claim 7, characterized in that: Includes the following steps: S10: Move the positioning block left and right to the top of the detection area, and move the positioning block down to place the magnetic component of the detection area in the receiving position. Record the position of the positioning block at this time as position one, and record the pulse value of the XZ axis moving module as pulse value one when the positioning block is in position one. S20: If the left end of the magnetic component exceeds the visual range of the vision detection system, the positioning block moves to the right first, causing the left clamping plate to move the magnetic component to the right first. The position of the positioning block after the movement is recorded as position two, and the pulse value of the XZ axis movement module at position two is recorded as pulse value two. Then the positioning block moves to the left, causing the right clamping plate to move the magnetic component to the left. The position of the positioning block after the movement is recorded as position three, and the pulse value of the XZ axis movement module at position three is recorded as pulse value three. If the right end of the magnetic component exceeds the visual range of the vision detection system, the positioning block moves to the left first, causing the right clamping plate to move the magnetic component to the left. The position after the positioning block moves to the left is recorded as position two, and the pulse value of the XZ axis movement module at position two is recorded as two. Then the positioning block moves to the right, causing the left clamping plate to push the magnetic component to the right. The position after the positioning block moves to the right is recorded as position three, and the pulse value of the XZ axis movement module at position three is recorded as three. S30: After taking a picture through the vision inspection system, determine whether the magnetic component after being moved is within the visual range of the vision inspection system; If, in step S20, the left end of the magnetic component is outside the visual range, and after moving it to the right, then to the left and taking a picture, the left end of the magnetic component is still outside the visual range, then the magnetic component continues to be moved to the right and then to the left, but the distance the positioning block moves the magnetic component to the left is reduced until the magnetic component is within the visual range. If, in step S20, the right end of the magnetic component is outside the visual range, and after moving left, moving right, and taking a picture, its right end is still outside the visual range, then the magnetic component will continue to move left and then right, but the distance the positioning block moves the magnetic component to the right will be reduced until the magnetic component is within the visual range. S40: Outputs position two, position three, pulse value two, and pulse value three when the magnetic component was moved into the visual range for the last time. After that, when the magnetic component is positioned, pulse value one, pulse value two, and pulse value three are sequentially input into the XZ axis moving module. The XZ axis moving module can then drive the positioning block to automatically move the magnetic component into the visual range.

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