Automatic feeding and detecting equipment for magnetic cores

Abstract

This application provides an automatic feeding and testing device for magnetic cores, including a testing mechanism. The testing mechanism includes a fixed frame, a first rotary driver, a rotating arm, two testing components, and a testing camera. The first rotary driver is mounted on the fixed frame, and the rotating arm is mounted on the first rotary driver. One testing component is fixedly mounted on the fixed frame, and the other testing component is mounted on the end of the rotating arm away from the first rotary driver. Each testing component includes an axial driver, a testing frame, two radial drivers, two movable frames, and two external clamping members. The axial driver is mounted on the rotating arm, the testing frame is mounted on the axial driver, both radial drivers are mounted on the testing frame, the two movable frames are respectively mounted on the two radial drivers, and the two external clamping members are respectively mounted on the two movable frames. The automatic feeding and testing device for magnetic cores provided by this application can achieve automatic feeding and automatic testing with high testing efficiency.

Description

Technical Field

[0001] This application relates to the field of magnetic core testing technology, and in particular to an automatic feeding and testing device for magnetic cores. Background Technology

[0002] Magnetic cores are magnetic components made by sintering iron oxide with other metal oxides (such as manganese, zinc, and nickel), belonging to the category of soft magnetic ferrite materials. In photovoltaic inverters, new energy vehicles, and communication equipment, magnetic cores achieve volume reduction and power density improvement through magnetic integration technology, with applications covering power electronics, the automotive industry, and medical equipment. In some application areas, the operating environment of magnetic cores is harsh, requiring high mechanical strength. Therefore, the mechanical strength of magnetic cores needs to be tested during the production process. However, in related technologies, the mechanical strength testing of magnetic cores mostly relies on manual labor, resulting in low testing efficiency. Summary of the Invention

[0003] The purpose of this application is to provide an automatic feeding and testing device for magnetic cores to solve the technical problem of low testing efficiency caused by reliance on manual labor in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an automatic feeding and testing device for magnetic cores, comprising: The testing mechanism includes a fixed frame, a first rotary driver, a rotating arm, two testing components, and a testing camera. The first rotary driver is mounted on the fixed frame, and the rotating arm is mounted on the first rotary driver and rotates around a first direction under the drive of the first rotary driver. One of the testing components is fixedly mounted on the fixed frame, and the other testing component is mounted on the end of the rotating arm away from the first rotary driver. The testing camera is mounted on the fixed frame. The detection assembly includes an axial drive, a detection frame, two radial drives, two movable frames, and two external clamping members. The axial drive is mounted on the rotating arm, the detection frame is mounted on the axial drive and moves along a first direction under the drive of the axial drive, both radial drives are mounted on the detection frame, the two movable frames are respectively mounted on the two radial drives and move towards each other or away from each other under the drive of the two radial drives, and the two external clamping members are respectively mounted on the two movable frames.

[0005] Optionally, the external clamping component includes an external frame, an external driver, and an external clamping arm, wherein the external frame is mounted on the movable frame, the external driver is mounted on the external frame, and the external clamping arm is mounted on the external driver.

[0006] Optionally, the detection assembly further includes two internal clamping members, which are respectively mounted on the two mobile frames.

[0007] Optionally, the internal clamping member includes a screw, at least one guide rod, a moving block, and an internal clamping arm. The screw is mounted on the moving frame and is rotatable relative to the moving frame. At least one guide rod is mounted on the moving frame. The moving block is sleeved on the screw and at least one guide rod and screwed to the screw. The internal clamping arm is mounted on the moving block.

[0008] Optionally, the internal clamping member further includes a handle mounted on the end of the screw.

[0009] Optionally, the detection assembly further includes at least one guide rail, which is mounted on the detection frame and snapped into the two movable frames.

[0010] Optionally, the automatic feeding and testing equipment for magnetic cores further includes a screening mechanism. The screening mechanism includes a screening frame, a second rotary driver, a turntable, multiple fixed slides, a mounting frame, and multiple pushing components. The second rotary driver is mounted on the screening frame, the turntable is mounted on the second rotary driver and rotates around a first direction under the drive of the second rotary driver, the multiple fixed slides are all fixedly mounted on the screening frame, the mounting frame is mounted on the screening frame, and the multiple pushing components are all mounted on the mounting frame and are arranged in a one-to-one correspondence with the multiple fixed slides.

[0011] Optionally, the turntable includes a rotating plate, multiple placement slots, and an annular groove. The rotating plate is mounted on the second rotary drive. The multiple placement slots are all formed in the rotating plate, and the annular groove is formed in the rotating plate, and the multiple placement slots are connected.

[0012] Optionally, the pushing assembly includes a linear driver and a pusher plate, the linear driver being mounted on the mounting frame, the pusher plate being mounted on the linear driver, and capable of pushing the magnetic core in the placement slot into the fixed slide. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1A three-dimensional view of the overall structure of an automatic feeding and testing device for magnetic cores provided in this application; Figure 2 A first-view perspective perspective view of the detection component of an automatic feeding and detection device for magnetic cores provided in this application; Figure 3 A second-view perspective perspective view of the detection component of an automatic feeding and detection device for magnetic cores provided in this application; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 for Figure 3 A magnified view of a section at point B in the middle; Figure 6 A perspective view of the screening mechanism of an automatic feeding and testing device for magnetic cores provided in this application; Figure 7 A three-dimensional view of a magnetic core for an automatic feeding and testing device for magnetic cores provided in this application.

[0015] The following are the labeling elements in the figure: 1. Detection mechanism; 11. Fixed frame; 12. First rotary actuator; 13. Rotary arm; 14. Detection assembly; 141. Axial actuator; 142. Detection frame; 143. Radial actuator; 144. Moving frame; 145. External clamping component; 1451. External frame; 1452. External actuator; 1453. External clamping arm; 146. Internal clamping component; 1461. Screw; 1462. Guide rod; 1463. Moving block; 1464. Internal clamping arm; 1465. Handle; 147. Guide rail; 2. Screening mechanism; 21. Turntable; 211. Turning plate; 212. Placement slot; 213. Ring groove; 22. Fixed slide; 23. Mounting frame; 24. Pushing assembly; 241. Linear driver; 242. Push plate. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0017] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0018] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] like Figures 1 to 7 As shown, this application provides an automatic feeding and testing device for magnetic cores, including a testing mechanism 1. The testing mechanism 1 includes a fixed frame 11, a first rotary driver 12, a rotating arm 13, two testing components 14, and a testing camera (not shown in the figure). The first rotary driver 12 is mounted on the fixed frame 11, and the rotating arm 13 is mounted on the first rotary driver 12 and rotates around a first direction under the drive of the first rotary driver 12. One testing component 14 is fixedly mounted on the fixed frame 11, and the other testing component 14 is mounted on the end of the rotating arm 13 away from the first rotary driver 12. The testing camera is mounted on the fixed frame 11. The detection assembly 14 includes an axial drive 141, a detection frame 142, two radial drives 143, two movable frames 144, and two external clamping members 145. The axial drive 141 is mounted on the rotating arm 13. The detection frame 142 is mounted on the axial drive 141 and moves along a first direction under the drive of the axial drive 141. Both radial drives 143 are mounted on the detection frame 142. The two movable frames 144 are respectively mounted on the two radial drives 143 and move towards each other or away from each other under the drive of the two radial drives 143. The two external clamping members 145 are respectively mounted on the two movable frames 144.

[0021] It should be noted that the "above" and "below" directions refer to the bidirectional direction of the shortest connection between the two detection components 14, as detailed below. Figure 1 The X-axis is shown in the figure.

[0022] This application provides an automatic feeding and testing device for magnetic cores. Under the action of a first rotary driver 12, two external clamping members 145 automatically clamp the magnetic core from an external conveying device and hold it between two testing components 14, thus automatically completing the feeding process. When the magnetic core is located between the two testing components 14, two axial drivers 141 drive two testing frames 142 to move towards each other along a first direction, compressing the magnetic core and thus detecting its compressive strength in the axial direction. Two radial drivers 143 drive two external clamping members 145 to move towards each other radially along the magnetic core, compressing the magnetic core and thus detecting its compressive strength in the radial direction. In summary, through the combined action of various components, automatic feeding and testing of magnetic cores with different outer diameters and lengths can be achieved, resulting in higher testing efficiency compared to related technologies.

[0023] Optionally, the detection assembly 14 also includes a first pressure sensor (not shown), which is mounted between the axial drive 141 and the detection frame 142.

[0024] With this configuration, the first pressure sensor can be used to detect the pressure exerted by the axial actuator 141 on the magnetic core, thereby facilitating the analysis of the magnetic core's compressive strength in the axial direction by the testing personnel.

[0025] In one embodiment of this application, please refer to Figures 1 to 7 The external clamping member 145 includes an external frame 1451, an external driver 1452, and an external clamping arm 1453. The external frame 1451 is mounted on the movable frame 144, the external driver 1452 is mounted on the external frame 1451, and the external clamping arm 1453 is mounted on the external driver 1452.

[0026] With this configuration, when clamping the magnetic core, the external clamping arm 1453 can be driven to move radially along the magnetic core by the external driver 1452, thus enabling the clamping of magnetic cores with different outer diameters and providing a wide range of applications. During the testing process, the two external clamping arms 1453 can move towards each other by the two radial drivers 143, thereby enabling the testing of the compressive strength of the magnetic core in the radial direction.

[0027] Optionally, the external clamp 145 may also include a second pressure sensor (not shown in the figure), which is mounted between the external clamp arm 1453 and the external driver 1452.

[0028] With this configuration, the second pressure sensor can detect the pressure exerted on the magnetic core by the external driver 1452, thus facilitating the analysis of the magnetic core's compressive strength in the radial direction by the testing personnel.

[0029] In one embodiment of this application, please refer to the following: Figures 1 to 7The detection component 14 also includes two internal clamping members 146, which are respectively mounted on two mobile frames 144.

[0030] This configuration allows for the clamping of magnetic cores with different inner diameters via two radial actuators 143, offering a wide range of applications. Furthermore, the two external clamping arms 1453 provide more stable clamping of the magnetic core. During testing, the two internal clamping members 146 can move in opposite directions via the two radial actuators 143, enabling the detection of the tensile strength of the magnetic core in the radial direction. Compared to related technologies, this provides more comprehensive testing results.

[0031] In one embodiment of this application, see [reference] Figures 1 to 7 The internal clamping member 146 includes a screw 1461, at least one guide rod 1462, a moving block 1463, and an internal clamping arm 1464. The screw 1461 is mounted on the moving frame 144 and is rotatable relative to the moving frame 144. At least one guide rod 1462 is mounted on the moving frame 144. The moving block 1463 is sleeved on the screw 1461 and at least one guide rod 1462 and screwed to the screw 1461. The internal clamping arm 1464 is mounted on the moving block 1463.

[0032] This configuration, with the combined action of the screw 1461 and at least one guide rod 1462, allows the moving block 1463 to move radially relative to the magnetic core, thereby adjusting the position of the internal clamping arm 1464 and enabling the clamping of magnetic cores with different inner diameters, thus broadening its applicability. The guide rod 1462 also limits the movement of the moving block 1463, preventing it from rotating with the screw 1461 and improving its stability.

[0033] In one embodiment of this application, please refer to Figures 1 to 7 The internal clamping member 146 also includes a handle 1465, which is mounted on the end of the screw 1461.

[0034] This design, via the handle 1465, makes it easy for the testing personnel to rotate the screw 1461, thus improving ease of use.

[0035] In one embodiment of this application, please refer to the following: Figures 1 to 7 The detection assembly 14 also includes at least one guide rail 147, which is mounted on the detection frame 142 and snapped into two movable frames 144.

[0036] With this configuration, the mobile frame 144 can be slidably engaged with the testing frame 142 by at least one guide rail 147, which helps to improve the stability of the mobile frame 144 during movement and also helps to improve the structural stability between the mobile frame 144 and the testing frame 142.

[0037] In one embodiment of this application, see [reference] Figures 1 to 7 An automatic feeding and testing device for magnetic cores also includes a screening mechanism 2. The screening mechanism 2 includes a screening frame (not shown in the figure), a second rotary driver (not shown in the figure), a turntable 21, multiple fixed slides 22, a mounting frame 23, and multiple pushing components 24. The second rotary driver is mounted on the screening frame, the turntable 21 is mounted on the second rotary driver and rotates around a first direction under the drive of the second rotary driver, the multiple fixed slides 22 are all fixedly mounted on the screening frame, the mounting frame 23 is mounted on the screening frame, and the multiple pushing components 24 are all mounted on the mounting frame 23 and are set one-to-one with the multiple fixed slides 22.

[0038] It should be noted that in this embodiment, the example is illustrated by setting four fixed slides 22 and four pushing components 24. The first fixed slide 22 is a qualified magnetic core slide, the second fixed slide 22 is a magnetic core slide with unqualified axial compressive strength, the third fixed slide 22 is a magnetic core slide with unqualified radial compressive strength, and the fourth fixed slide 22 is a magnetic core slide with unqualified radial tensile strength. Of course, in other embodiments, depending on the actual application, the number of fixed slides 22 and the number of pushing components 24 can be set to two, three, five, or other numbers, and this is not a unique limitation.

[0039] With this setup, after inspection, the inspection camera can be used to determine whether the magnetic core is qualified. Furthermore, if the magnetic core is unqualified, the inspection camera can analyze the shape and size of cracks on the core surface by photographing it to determine the type of failure. It should be noted that when testing the axial compressive strength of the magnetic core, if the inspection camera captures images of the magnetic core showing a decrease in size or cracks, it can be considered that the axial compressive strength is unqualified. When testing the radial compressive strength of the magnetic core, if the inspection camera captures images of the magnetic core showing a decrease in size or cracks, it can be considered that the radial compressive strength is unqualified. When testing the radial tensile strength of the magnetic core, if the inspection camera captures images of the magnetic core showing a decrease in size or cracks, it can be considered that the radial tensile strength is unqualified. The magnetic core can be automatically transferred to the surface of the turntable 21 via the first rotary driver 12, the rotating arm 13, and the two external clamping members 145. Under the action of the second rotary drive, the magnetic core can be pushed into the corresponding fixed slide 22 according to whether the magnetic core is qualified and the type of unqualified magnetic core, and the corresponding pushing component 24. The degree of automation is high, no manual sorting is required, and the detection efficiency is greatly improved.

[0040] In one embodiment of this application, please refer to Figures 1 to 7 The turntable 21 includes a turntable 211, a plurality of placement slots 212 and an annular groove 213. The turntable 211 is mounted on a second rotary drive. The plurality of placement slots 212 are all opened in the turntable 211. The annular groove 213 is opened in the turntable 211 and can connect the plurality of placement slots 212.

[0041] This design, when the rotating plate 211 rotates, prevents the magnetic core from slipping off the surface of the rotating plate 211 through multiple placement slots 212, thus stably pushing the magnetic core into the corresponding fixed slide rail 22, which helps improve the stability of the screening process. When the rotating plate 211 rotates, the annular groove 213 prevents the pusher plate 242 from slipping, allowing the pusher plate 242 to properly push the magnetic core into the fixed slide rail 22.

[0042] In one embodiment of this application, please refer to the following: Figures 1 to 7 The push assembly 24 includes a linear driver 241 and a push plate 242. The linear driver 241 is mounted on the mounting frame 23, and the push plate 242 is mounted on the linear driver 241 and is capable of pushing the magnetic core in the placement slot 212 into the fixed slide 22.

[0043] With this configuration, the magnetic core in the placement slot 212 can be automatically pushed into the fixed slide 22 by the linear driver 241 and the pusher plate 242, resulting in a high degree of automation.

[0044] The working principle of the automatic feeding and testing equipment for magnetic cores provided in this application is as follows: Before use, the inspectors adjusted the position of the two internal clamping arms 1464 according to the inner diameter of the magnetic core so that the two internal clamping arms 1464 could roughly fit against the inner circumference of the magnetic core.

[0045] In use, the magnetic core is first transported to a designated position using an external conveyor belt (not shown in the figure). A first rotary driver 12 drives a rotating arm 13 to rotate around a first direction toward the external conveyor belt until the detection assembly 14 rotates above the designated position. An axial driver 141 drives the detection frame 142 to move along the first direction toward the magnetic core until the two internal clamping arms 1464 are in contact with the inner circumference of the magnetic core. Two external drivers 1452 drive two external clamping arms 1453 to move towards each other until the two external clamping arms 1453 are in contact with the outer circumference of the magnetic core. The magnetic core is clamped by the two internal clamping arms 1464 and the two external clamping arms 1453. The axial driver 141 drives the detection frame 142 to move away from the external conveyor belt along the first direction. The first rotary driver 12 drives the rotating arm 13 to move around the first direction toward another detection assembly 14 until the two detection assemblies 14 are positioned facing each other. The axial driver 141 of the detection assembly 14, fixed to the fixed frame 11, drives the detection frame 142 to move toward the magnetic core along a first direction until the detection frame 142 and the magnetic core contact. The two radial drivers 143 of the detection assembly 14, fixed to the fixed frame 11, drive the two external clamping arms 1453 to move toward each other to clamp the magnetic core.

[0046] During testing, two axial actuators 141 drive two testing frames 142 to move towards each other along a first direction, thereby enabling the detection of the compressive strength of the magnetic core in the axial direction. Two radial actuators 143 drive two outer clamping arms 1453 to move towards each other, thereby enabling the detection of the compressive strength of the magnetic core in the radial direction. Two radial actuators 143 drive two inner clamping arms 1464 to move away from each other, thereby enabling the detection of the tensile strength of the magnetic core in the radial direction.

[0047] After the test, the first rotary driver 12 drives the rotating arm 13 to move toward the screening mechanism 2 in a first direction until the magnetic core rotates above the rotating plate 211. The axial driver 141 drives the magnetic core to move toward the rotating plate 211 in the first direction until the magnetic core is placed in the placement slot 212. The two external drivers 1452 drive the two external clamping arms 1453 to move in opposite directions and then reset. According to the test results, the turntable 21 rotates the placement slot 212 to the corresponding fixed slide 22 and pushes the magnetic core down from the corresponding fixed slide 22.

[0048] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. An automatic feeding and testing device for magnetic cores, characterized in that, include: The testing mechanism includes a fixed frame, a first rotary driver, a rotating arm, two testing components, and a testing camera. The first rotary driver is mounted on the fixed frame, and the rotating arm is mounted on the first rotary driver and rotates around a first direction under the drive of the first rotary driver. One of the testing components is fixedly mounted on the fixed frame, and the other testing component is mounted on the end of the rotating arm away from the first rotary driver. The testing camera is mounted on the fixed frame. The detection assembly includes an axial drive, a detection frame, two radial drives, two movable frames, and two external clamping members. The axial drive is mounted on the rotating arm, the detection frame is mounted on the axial drive and moves along a first direction under the drive of the axial drive, both radial drives are mounted on the detection frame, the two movable frames are respectively mounted on the two radial drives and move towards each other or away from each other under the drive of the two radial drives, and the two external clamping members are respectively mounted on the two movable frames.

2. The automatic feeding and testing equipment for magnetic cores as described in claim 1, characterized in that, The external clamping component includes an external frame, an external driver, and an external clamping arm. The external frame is mounted on the movable frame, the external driver is mounted on the external frame, and the external clamping arm is mounted on the external driver.

3. The automatic core loading and detecting apparatus of claim 1, wherein The detection assembly also includes two internal clamping components, which are respectively mounted on the two mobile frames.

4. The automatic core loading detection apparatus of claim 3, wherein The internal clamping component includes a screw, at least one guide rod, a moving block, and an internal clamping arm. The screw is mounted on the moving frame and is rotatable relative to the moving frame. At least one guide rod is mounted on the moving frame. The moving block is sleeved on the screw and at least one guide rod and screwed to the screw. The internal clamping arm is mounted on the moving block.

5. The automatic core loading detection apparatus of claim 3, wherein The internal clamping element also includes a handle, which is mounted on the end of the screw.

6. The automatic core loading and detecting apparatus of claim 1, wherein The detection assembly further includes at least one guide rail, which is mounted on the detection frame and snapped into the two movable frames.

7. The automatic core loading and detecting apparatus of claim 1, wherein The automatic feeding and testing equipment for magnetic cores further includes a screening mechanism. The screening mechanism includes a screening frame, a second rotary driver, a turntable, multiple fixed slides, a mounting frame, and multiple pushing components. The second rotary driver is mounted on the screening frame, the turntable is mounted on the second rotary driver and rotates around a first direction under the drive of the second rotary driver, the multiple fixed slides are all fixedly mounted on the screening frame, the mounting frame is mounted on the screening frame, and the multiple pushing components are all mounted on the mounting frame and are arranged in a one-to-one correspondence with the multiple fixed slides.

8. The automatic core loading detection apparatus of claim 7, wherein The turntable includes a rotating plate, multiple placement slots and an annular groove. The rotating plate is mounted on the second rotary driver. The multiple placement slots are all formed in the rotating plate. The annular groove is formed in the rotating plate and can connect the multiple placement slots.

9. The automatic core loading detection apparatus of claim 7, wherein The pushing assembly includes a linear driver and a pusher plate. The linear driver is mounted on the mounting frame, and the pusher plate is mounted on the linear driver and is capable of pushing the magnetic core in the placement slot into the fixed slide.

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