An aluminum electrolytic capacitor testing and sorting machine

Abstract

The present invention relates to the technical field of capacitor testing, and provides an aluminum electrolytic capacitor testing and sorting machine, which includes a sorting turntable, a frame and a plurality of U-shaped grooves. One of the U-shaped grooves is used for feeding, and the other U-shaped grooves are used for testing. A through groove is provided on the inner side surface of the U-shaped groove, and a placement plate penetrates through the through groove. A camera is provided above the U-shaped groove for feeding, and a mounting plate is provided above the U-shaped groove for testing. The mounting plate is used for mounting a capacitor testing device. A pair of electrode plates are connected to each mounting plate. A movable circular plate is rotatably connected to the surface of the placement plate. A second motor is installed on the frame, and an electromagnet is fixedly connected to the output shaft of the second motor. An aggregate box is provided below the U-shaped groove for testing; the camera is used for collecting capacitor images, identifying the positive and negative electrodes of the capacitor, so that the positive and negative electrodes on the capacitor correspond to the positions of the electrode plates, realizing the precise alignment of the pins and the electrode plates, which is efficient and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor testing, and more particularly to an aluminum electrolytic capacitor testing and sorting machine. Background Art

[0002] An aluminum electrolytic capacitor testing and sorting machine generally includes a short-circuit detection device, a voltage detection device, and a leakage current detection device. The sorting machine has a feeding position and a discharging position, and the short-circuit detection device, the voltage detection device, and the leakage current detection device are sequentially arranged between the feeding position and the discharging position on the machine body. Currently, when loading, it is necessary to manually adjust the positions of the positive and negative pins of the capacitor to ensure that the pins can be connected in alignment with the electrode plates for testing, with low efficiency and inaccurate orientation adjustment. In addition, currently, all unqualified aluminum electrolytic capacitors cannot be automatically sorted separately, and capacitors with unqualified items in different projects are prone to being mixed together, which is not convenient for subsequent improvement research. Therefore, there is a need to provide an aluminum electrolytic capacitor testing and sorting machine to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an aluminum electrolytic capacitor testing and sorting machine, aiming to solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An aluminum electrolytic capacitor testing and sorting machine includes a sorting turntable, a frame, and a first motor. The first motor is used to drive the sorting turntable to rotate. A plurality of U-shaped grooves are provided at the edge of the upper surface of the sorting turntable. One of the U-shaped grooves is used for loading, and the other U-shaped grooves are used for testing. Through grooves are provided on the inner side surfaces of the U-shaped grooves, and a placement plate penetrates through the through grooves. A plurality of linear driving elements are installed on the bottom surface of the sorting turntable, and the placement plate is connected to the telescopic ends of the linear driving elements. A conveyor belt is installed outside the U-shaped groove for loading, and a camera is provided above the U-shaped groove for loading. An installation plate is provided above the U-shaped groove for testing, and the installation plate is used to install a capacitor testing device. A pair of electrode plates are connected to each installation plate, and the electrode plates are electrically connected to the capacitor testing device. A movable circular plate is rotatably connected to the surface of the placement plate. A second motor is installed on the frame, and an electromagnet is fixedly connected to the output shaft of the second motor. The electromagnet is in contact with the movable circular plate, and the movable circular plate is made of ferromagnetic material. An annular groove is provided at the edge of the bottom surface of the sorting turntable, and the annular groove is communicated with the U-shaped grooves. A collection box is provided below each U-shaped groove for testing. The camera is used to collect capacitor images and identify the positive and negative poles of the capacitor. The second motor is used to drive the rotation of the movable circular plate so that the positions of the positive and negative pins on the capacitor correspond to the electrode plates.

[0005] As a further solution of the present invention, several of the U-shaped grooves, mounting plates, and linear drive elements are all circumferentially arrayed about the center line of the sorting turntable. Five U-shaped grooves and linear drive elements are provided, and four mounting plates are provided. The capacitor testing devices mounted on the four mounting plates are respectively: a short-circuit detection device, a voltage detection device, a capacitor charging device, and a leakage current detection device.

[0006] As a further solution of the present invention, the testing and sorting machine further includes a processor and a controller. The processor is used to identify the positive and negative poles of the capacitor image collected by the camera, determine the angle of the line connecting the positive and negative poles, and determine the rotation angle of the movable circular plate according to the angle of the line connecting the positive and negative poles. The electromagnet, the first motor, the second motor, the linear drive element, and the processor are all electrically connected to the controller.

[0007] As a further solution of the present invention, a guiding arc-shaped plate is provided above several of the U-shaped grooves for testing. One guiding arc-shaped plate penetrates the gap between each pair of electrode plates. The width value of the guiding arc-shaped plate is equal to the distance between the positive pin and the negative pin on the capacitor.

[0008] As a further solution of the present invention, one end of the guiding arc-shaped plate facing the camera is wedge-shaped. Several second grooves are provided on the side surface of the guiding arc-shaped plate. The second grooves correspond to the mounting plates one by one. The second grooves are located on one side of the mounting plates. The direction of the second grooves relative to the corresponding mounting plates is the same as the rotation direction of the sorting turntable.

[0009] As a further solution of the present invention, each pair of the electrode plates is in a figure-eight shape. The direction of the end with a smaller distance of each pair of electrode plates relative to the end with a larger distance is the same as the rotation direction of the sorting turntable. The closest distance between the electrode plate and the guiding arc-shaped plate is equal to the diameter of the capacitor pin.

[0010] As a further solution of the present invention, the conveyor belt and the camera are both mounted on the frame. The frame is connected to the aggregate box. A guiding side plate is mounted at the output end of the conveyor belt. The guiding side plate is used to guide the capacitor into the U-shaped groove for feeding.

[0011] As a further solution of the present invention, an arc-shaped baffle is connected to the surface of the placement plate. The arc-shaped baffle is located inside the movable circular plate. A first groove is provided at the outer edge of the placement plate.

[0012] As a further solution of the present invention, several of the mounting plates are connected by a connecting arc-shaped plate. The bottom surface of the mounting plate and the top surface of the guiding arc-shaped plate are connected by a connecting column. The connecting arc-shaped plate and the aggregate box are connected by a fixing frame.

[0013] In summary, the beneficial effects of the present invention are:

[0014] By collecting capacitor images, automatically identify the positive and negative electrodes of the capacitor, and drive the movable circular plate to rotate by a corresponding angle, so that the positive and negative electrodes on the capacitor correspond to the positions of the electrode plates, completing the precise alignment of the pins and the electrode plates, which is efficient and convenient. In addition, each capacitor with a test anomaly will be automatically discharged, and the capacitors with each anomaly item will be sorted separately, facilitating subsequent research and improvement of anomaly problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0016] Figure 1 is a three-dimensional structure schematic diagram of a test and sorting machine for aluminum electrolytic capacitors according to an embodiment of the present invention Figure 1 .

[0017] Figure 2 is a three-dimensional structure schematic diagram of a test and sorting machine for aluminum electrolytic capacitors according to an embodiment of the present invention Figure 2 .

[0018] Figure 3 Figure 3 is a three-dimensional structure schematic diagram of a test and sorting machine for aluminum electrolytic capacitors according to an embodiment of the present invention .

[0019] Figure 4 is a partial three-dimensional structure schematic diagram of a test and sorting machine for aluminum electrolytic capacitors according to an embodiment of the present invention.

[0020] Figure 5 is Figure 2 a partial enlarged schematic diagram at A in

[0021] Figure 6 is Figure 3 a partial enlarged schematic diagram at B in

[0022] Figure 7 is Figure 3 a partial enlarged schematic diagram at C in

[0023] Figure 8 is Figure 4 a partial enlarged schematic diagram at D in

[0024] Reference numerals: 1 - sorting turntable, 2 - frame, 3 - U-shaped groove, 4 - aggregate box, 5 - conveyor belt, 6 - camera, 7 - guiding side plate, 8 - guiding arc plate, 9 - placing plate, 10 - electrode plate, 11 - mounting plate, 12 - connecting column, 13 - connecting arc plate, 14 - fixing bracket, 15 - second motor, 16 - first motor, 17 - annular groove, 18 - linear drive element, 19 - electromagnet, 20 - movable circular plate, 21 - arc-shaped baffle, 22 - first groove, 23 - through groove, 24 - second groove. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further details the present invention in combination with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] The following describes in detail the specific implementation of the present invention in combination with specific embodiments.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8, a kind of aluminum electrolytic capacitor test and sorting machine provided by an embodiment of the present invention includes a sorting turntable 1, a frame 2 and a first motor 16. The first motor 16 is fixedly installed on the frame 2, and the output shaft of the first motor 16 is fixedly connected to the bottom surface of the sorting turntable 1. The first motor 16 is used to drive the sorting turntable 1 to rotate. A plurality of U-shaped grooves 3 are arranged at the edge of the upper surface of the sorting turntable 1. One of the U-shaped grooves 3 is used for feeding, and the other U-shaped grooves 3 are used for testing. A through groove 23 is arranged on the inner side surface of the U-shaped groove 3. A placing plate 9 is arranged in the U-shaped groove 3. The placing plate 9 penetrates through the through groove 23. The placing plate 9 is horizontally arranged. A plurality of linear driving elements 18 are installed on the bottom surface of the sorting turntable 1. The linear driving elements 18 are electric push rods. The placing plate 9 is connected to the telescopic end of the linear driving element 18. A conveyor belt 5 is installed outside the U-shaped groove 3 for feeding. The conveyor belt 5 is used to convey aluminum electrolytic capacitors into the placing plate 9. A camera 6 is arranged above the U-shaped groove 3 for feeding. An installation plate 11 is arranged above the U-shaped groove 3 for testing. The installation plate 11 is used to install a capacitor testing device. A pair of electrode plates 10 are connected to each installation plate 11. The electrode plates 10 are electrically connected to the capacitor testing device. A movable circular plate 20 is rotatably connected to the upper surface of the placing plate 9. The movable circular plate 20 penetrates through the placing plate 9. A second motor 15 is installed on the frame 2. An electromagnet 19 is fixedly connected to the output shaft of the second motor 15. The electromagnet 19 is in contact with the movable circular plate 20. The movable circular plate 20 is made of ferromagnetic material. When the electromagnet 19 is energized, the electromagnet 19 is fixedly connected to the movable circular plate 20. When the electromagnet 19 is de-energized, the movable circular plate 20 can move relative to the electromagnet 19. An annular groove 17 is arranged at the edge of the bottom surface of the sorting turntable 1. The annular groove 17 is communicated with the U-shaped groove 3. An aggregate box 4 is arranged below each U-shaped groove 3 for testing. Thus, when the placing plate 9 shrinks, the capacitor will directly fall into the corresponding aggregate box 4 to complete sorting.

[0028] In an embodiment of the present invention, the camera 6 is used to collect capacitor images and identify the positive and negative poles of the capacitor. The second motor 15 is used to rotate and drive the movable circular plate 20 so that the positions of the positive and negative pins on the capacitor correspond to the positions of the electrode plates 10. Specifically, the test and sorting machine further includes a processor and a controller. The processor will identify the positive and negative poles of the capacitor image collected by the camera 6 according to the positive and negative pole features, and then determine the angle of the line connecting the positive and negative poles. According to the angle of the line connecting the positive and negative poles, the rotation angle of the movable circular plate 20 is determined. Then the controller will energize the electromagnet 19 and make the second motor 15 rotate by the corresponding angle. The electromagnet 19, the first motor 16, the second motor 15, the linear driving element 18 and the processor are all electrically connected to the controller.

[0029] In the embodiment of the present invention, a plurality of the U-shaped grooves 3, the mounting plates 11, and the linear driving elements 18 are all circumferentially arrayed about the center line of the sorting turntable 1. Five U-shaped grooves 3 and five linear driving elements 18 are provided, and four mounting plates 11 are provided. The capacitor testing devices mounted on the four mounting plates 11 are respectively: a short-circuit detection device, a voltage detection device, a capacitor charging device, and a leakage current detection device. If any item fails the test, the placement plate 9 directly below will contract, and the capacitor will directly fall into the corresponding collection box 4, completing the classification of each abnormal capacitor.

[0030] Please refer to Figures 1 to 8 , in the embodiment of the present invention, a guiding arc plate 8 is provided above a plurality of the U-shaped grooves 3 for testing. One guiding arc plate 8 penetrates through the gap between each pair of electrode plates 10. The width value of the guiding arc plate 8 is equal to the distance between the positive pin and the negative pin on the capacitor. Through the setting of the guiding arc plate 8, the alignment of the pins and the electrode plates 10 will be more accurate.

[0031] In the embodiment of the present invention, one end of the guiding arc plate 8 facing the camera 6 is wedge-shaped. A plurality of second grooves 24 are provided on the side surface of the guiding arc plate 8. The second grooves 24 correspond to the mounting plates 11 one by one. The second grooves 24 are located on one side of the mounting plates 11. The direction of the second grooves 24 relative to the corresponding mounting plates 11 is the same as the rotation direction of the sorting turntable 1. In this way, after the placement plate 9 is rotated to below the second groove 24, the placement plate 9 can be contracted. In this way, the capacitor will smoothly fall into the corresponding collection box 4, avoiding the two pins clamping the guiding arc plate 8 and causing the capacitor to be unable to fall.

[0032] In the embodiment of the present invention, each pair of the electrode plates 10 is in an eight-shaped configuration. The direction of the end with a smaller distance of each pair of electrode plates 10 relative to the end with a larger distance is the same as the rotation direction of the sorting turntable 1. The closest distance between the electrode plate 10 and the guiding arc plate 8 is equal to the diameter of the capacitor pin. In this way, it is ensured that the pin can make good contact with the electrode plate 10.

[0033] In the embodiment of the present invention, both the conveyor belt 5 and the camera 6 are mounted on the frame 2. The frame 2 is connected to the collection box 4. A guiding side plate 7 is mounted at the output end of the conveyor belt 5. The guiding side plate 7 is used to guide the capacitor into the U-shaped groove 3 for feeding.

[0034] In the embodiment of the present invention, an arc-shaped baffle 21 is connected to the surface of the placement plate 9. The arc-shaped baffle 21 is located inside the movable circular plate 20. A first groove 22 is provided at the outer edge of the placement plate 9. In this way, the placement plate 9 can extend outward to the edge of the conveyor belt 5, ensuring that the capacitor can smoothly move onto the movable circular plate 20.

[0035] In an embodiment of the present invention, a plurality of the mounting plates 11 are connected to each other by connecting arc plates 13. The bottom surface of the mounting plate 11 and the top surface of the guiding arc plate 8 are connected by connecting columns 12. The connecting arc plate 13 and the aggregate box 4 are connected by a fixing frame 14.

[0036] The working process of the embodiment of the present invention is as follows: When the U-shaped groove 3 rotates to the conveyor belt 5, the corresponding placement plate 9 extends outwards to the edge of the conveyor belt 5. The capacitor is conveyed to the movable circular plate 20 in the U-shaped groove 3 through the conveyor belt 5. Then, the collected capacitor image is taken and the positive and negative poles are identified. According to the angle of the connection line between the positive and negative poles, the rotation angle of the movable circular plate 20 is determined, so that the electromagnet 19 is energized, and the second motor 15 drives the movable circular plate 20 to rotate by the corresponding angle, completing the precise alignment of the two pins of the capacitor. Then, the electromagnet 19 is powered off, and the sorting turntable 1 rotates. The capacitor will move to the first detection position. If the detection is qualified, it will move to the next detection position. If the detection is unqualified, the corresponding placement plate 9 will contract inwards, and the capacitor will fall into the aggregate box 4. When all the detection items are qualified, the staff can take out all the capacitors that have passed all the detections at the last detection item.

[0037] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and its equivalents.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An aluminum electrolytic capacitor testing and sorting machine, comprising a sorting turntable (1), a frame (2) and a first motor (16), wherein the first motor (16) is used to drive the sorting turntable (1) to rotate, and is characterized in that: A plurality of U-shaped grooves (3) are arranged at the edge of the upper surface of the sorting turntable (1), wherein one of the U-shaped grooves (3) is used for loading, and the other U-shaped grooves (3) are used for testing. A through groove (23) is arranged on the inner side surface of the U-shaped groove (3), and a placement plate (9) passes through the through groove (23). A plurality of linear drive elements (18) are installed on the bottom surface of the sorting turntable (1), and the placement plate (9) is connected to the telescopic end of the linear drive element (18). A conveyor belt (5) is installed on the outer side of the U-shaped groove (3) for loading, and a camera (6) is arranged above the U-shaped groove (3) for loading. A mounting plate (11) is arranged above the U-shaped groove (3) for testing, and the mounting plate (11) is used to install a capacitor testing device. A pair of electrode sheets (10) are connected to each mounting plate (11), and the electrode sheets (10) are connected to the mounting plate (11). The capacitor testing device is electrically connected, the surface of the placement plate (9) is rotatably connected to a movable circular plate (20), a second motor (15) is installed on the frame (2), an electromagnet (19) is fixedly connected to the output shaft of the second motor (15), the electromagnet (19) is in contact with the movable circular plate (20), and the movable circular plate (20) is made of ferromagnetic material; an annular groove (17) is provided at the bottom edge of the sorting turntable (1), the annular groove (17) is connected to the U-shaped groove (3), and a collection box (4) is provided below each U-shaped groove (3) used for testing; the camera (6) is used to collect capacitor images and identify the positive and negative electrodes of the capacitor, and the second motor (15) is used to drive the movable circular plate (20) to rotate so that the positive and negative electrodes on the capacitor correspond to the positions of the electrode sheet (10).

2. The aluminum electrolytic capacitor testing and sorting machine according to claim 1, characterized in that: The plurality of U-shaped grooves (3), mounting plates (11) and linear drive elements (18) are distributed in a circular array about the center line of the sorting turntable (1), five U-shaped grooves (3) and five linear drive elements (18) are provided, and four mounting plates (11) are provided. The capacitor test devices installed on the four mounting plates (11) are respectively: a short circuit detection device, a voltage detection device, a capacitor charging device and a leakage current detection device.

3. The aluminum electrolytic capacitor testing and sorting machine according to claim 1, characterized in that: The test sorting machine also includes a processor and a controller. The processor is used to identify the positive and negative electrodes of the capacitor image captured by the camera (6), determine the angle of the line connecting the positive and negative electrodes, and determine the rotation angle of the movable circular plate (20) according to the angle of the line connecting the positive and negative electrodes; the electromagnet (19), the first motor (16), the second motor (15), the linear drive element (18) and the processor are all electrically connected to the controller.

4. The aluminum electrolytic capacitor testing and sorting machine according to claim 1, characterized in that: A guide arc plate (8) is arranged above a plurality of the U-shaped grooves (3) for testing, and one of the guide arc plates (8) passes through the gap between each pair of electrode sheets (10), and the width of the guide arc plate (8) is equal to the spacing between the positive electrode pin and the negative electrode pin on the capacitor.

5. The aluminum electrolytic capacitor testing and sorting machine according to claim 4, characterized in that: The end of the guide arc plate (8) facing the camera (6) is wedge-shaped, and a plurality of second grooves (24) are arranged on the side of the guide arc plate (8), the second grooves (24) correspond to the mounting plate (11) one by one, the second grooves (24) are located on one side of the mounting plate (11), and the direction of the second grooves (24) relative to the corresponding mounting plate (11) is the same as the rotation direction of the sorting turntable (1).

6. The aluminum electrolytic capacitor testing and sorting machine according to claim 4, characterized in that: Each pair of electrode sheets (10) is in an eight-shaped shape, and the direction of the end with a smaller spacing relative to the end with a larger spacing of each pair of electrode sheets (10) is the same as the rotation direction of the sorting turntable (1), and the closest distance between the electrode sheet (10) and the guide arc plate (8) is equal to the diameter of the capacitor pin.

7. The aluminum electrolytic capacitor testing and sorting machine according to claim 1, characterized in that: The conveyor belt (5) and the camera (6) are both installed on a frame (2), the frame (2) is connected to a collecting box (4), and a guide side plate (7) is installed at the output end of the conveyor belt (5), and the guide side plate (7) is used to guide the capacitor into a U-shaped groove (3) for loading.

8. The aluminum electrolytic capacitor testing and sorting machine according to claim 1, characterized in that: The surface of the placement plate (9) is connected to an arc-shaped baffle plate (21), the arc-shaped baffle plate (21) is located on the inner side of the movable circular plate (20), and a first groove (22) is provided at the outer edge of the placement plate (9).

9. The aluminum electrolytic capacitor testing and sorting machine according to claim 4, characterized in that: A plurality of the mounting plates (11) are connected to each other via a connecting arc plate (13); the bottom surface of the mounting plate (11) is connected to the top surface of the guide arc plate (8) via a connecting column (12); and the connecting arc plate (13) is connected to the material collecting box (4) via a fixing frame (14).

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