Electrolytic capacitor appearance defect detection device and detection method

Abstract

The invention belongs to the technical field of appearance detection, and particularly discloses an electrolytic capacitor appearance defect detection device and method.The electrolytic capacitor appearance defect detection device comprises a detection assembly, the detection assembly comprises a bottom supporting table and a top frame, and the two ends of the top of the bottom supporting table are provided with an input assembly and an output assembly respectively; the invention discloses an electrolytic capacitor appearance defect detection method. The method comprises the following steps: S1, an input assembly continuously conveys an electrolytic capacitor to the top of a positioning cylinder in a protection cover; s2, a second air cylinder pushes a second L-shaped moving block, a jacking cylinder is driven to ascend through a second connecting rod, and the electrolytic capacitor is lifted to the clamping range of the cylinder; s3, the first air cylinder extends, and the electrolytic capacitor can be conveyed and overturned; through cooperation of the pushing mechanism, the clamping mechanism and the jacking mechanism, automatic feeding and discharging of the electrolytic capacitor can be achieved, and assembly line work of conveying, detection and output is formed in cooperation with design of a detection space.

Description

Technical Field

[0001] The present invention belongs to the technical field of appearance inspection, and specifically discloses a device and method for detecting appearance defects of electrolytic capacitors. Background Art

[0002] Electrolytic capacitors are polarized capacitors that use an electrolyte as either the cathode or anode material. Their core features include a positive and negative electrode structure, high capacitance, and a composition of electrolyte / solid electrolyte materials. They are primarily used in power filtering, low-frequency signal processing, and circuit stability control. By inspecting the appearance of electrolytic capacitors for defects, defective products can be removed early, reducing subsequent rework and losses, improving production efficiency, and ensuring the quality, safety, and long-term stability of electrolytic capacitors.

[0003] Most existing electrolytic capacitor appearance defect detection systems are unable to achieve multi-angle flexible rotation of electrolytic capacitors. Although some equipment has a rotation function, the rotation angle is limited and cannot fully display the appearance of the capacitor, which easily creates detection blind spots and affects the accuracy of defect identification. Due to the inability to perform all-round and multi-angle inspection of electrolytic capacitors, a large number of appearance defects cannot be discovered in time, seriously affecting product quality. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose an electrolytic capacitor appearance defect detection device and detection method to solve the problem that most existing technologies cannot achieve multi-angle flexible rotation of electrolytic capacitors. Although some devices have a rotation function, the rotation angle is limited and cannot fully display the appearance of the capacitor, which easily causes detection blind spots and affects the accuracy of defect identification. Since it is impossible to perform all-round and multi-angle detection on electrolytic capacitors, a large number of appearance defects cannot be discovered in time, seriously affecting product quality.

[0005] To achieve the above objectives, the present invention provides an electrolytic capacitor appearance defect detection device, including a detection component, the detection component including a bottom support platform and a top frame, the top frame is located directly above the bottom support platform, and an input component and an output component are respectively provided at both ends of the top of the bottom support platform, the input component and the output component are used to transport the electrolytic capacitor, and the space between the input component and the output component is the detection space for the electrolytic capacitor, a movable platform is movably installed inside the top frame, three cylinders are evenly installed on the bottom of the movable platform, a pushing mechanism is provided inside the movable platform, a clamping mechanism is provided inside the cylinder, the pushing mechanism can drive the movable platform to move, and the pushing mechanism can also drive the clamping mechanism to clamp the electrolytic capacitor, three positioning cylinders are provided on the surface of the bottom support platform, the positioning cylinder is used to support the electrolytic capacitor, and a lifting mechanism is provided inside the positioning cylinder, and the lifting mechanism can lift the electrolytic capacitor on the top of the positioning cylinder.

[0006] In the above technical solution, preferably, a protruding bar is fixedly installed on the top of the movable platform, a guide groove is provided on the top of the top frame, the top end of the protruding bar moves through the guide groove, and a protruding plate is fixedly installed on the top of the protruding bar, and the protruding plate is slidably installed above the top frame.

[0007] In the above technical solution, preferably, a protective cover is provided at the end of the input component. When the movable platform moves to one end of the input component, the three positioning cylinders are respectively located directly below the three cylinders, and the positioning cylinder close to the input component is installed inside the protective cover.

[0008] In the above technical solution, preferably, the pushing mechanism includes a first cylinder, which is installed on the end face of the top frame close to the input component, an operating compartment is opened inside the movable platform, and a first L-shaped moving block is movably provided inside the operating compartment, and the output end of the first cylinder is fixedly connected to the first L-shaped moving block.

[0009] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0010] In the above technical solution, preferably, two inclined platforms are installed on the surface of the first L-shaped moving block, and two pulling-up mechanisms are arranged inside the moving platform, and the pulling-up mechanism includes a rotating cylinder, which is located above the inclined platform, and the two sides of the rotating cylinder are connected to a connecting frame through a rotating shaft, the bottom of the connecting frame is connected to the center column, and the top of the connecting frame is fixedly installed with a supporting surface, and the top of the supporting surface is provided with a spring, and the top of the spring is connected to the inner wall of the moving platform, and the two pulling-up mechanisms are respectively matched with the two clamping mechanisms close to the input component, and a groove is opened at one end of the moving platform close to the output component, and a third cylinder is arranged inside the groove, and the third cylinder is located directly above the cylinder close to one end of the output component, and the output end of the third cylinder is connected to the clamping mechanism inside the cylinder directly below it.

[0011] In the above technical solution, preferably, the two cylinders close to the input component are rotatably connected to the mobile platform, gears are installed on their surfaces, racks are installed on the inner wall of the top frame, the gears are engaged with the racks, and the other cylinder is fixedly connected to the mobile platform.

[0012] In the above technical solution, preferably, the jacking mechanism includes a jacking cylinder, the jacking cylinder is movably installed inside each of the positioning cylinders, a second L-shaped moving block is movably installed inside the bottom support platform, the bottom of the jacking cylinder is connected to a second connecting rod through a rotating shaft, the bottom of the second connecting rod is connected to the second L-shaped moving block through a rotating shaft, a second cylinder is provided on the outside of the bottom support platform, the output end of the second cylinder is connected to the second L-shaped moving block, and a circular cover is provided on the top of the positioning cylinder, and the circular cover is located on the outside of the jacking cylinder.

[0013] A method for detecting appearance defects of electrolytic capacitors comprises the following steps: S1. The input assembly continuously transports the electrolytic capacitors to the top of the positioning cylinder in the protective cover. The pushing mechanism and the clamping mechanism can move the electrolytic capacitors transported by the input assembly to the tops of the other two positioning cylinders in sequence. S2: The second cylinder pushes the second L-shaped moving block, which drives the lifting cylinder upward through the second connecting rod, lifting the electrolytic capacitor to the clamping range of the cylinder. At the same time, the camera assembly on the side of the detection space takes multi-angle photos of the lifted electrolytic capacitor; S3: The first cylinder extends, pushing the first L-shaped moving block. Its inclined platform lifts the rotating cylinder, driving the center column to rise, so that the two clamping mechanisms near the input assembly clamp the electrolytic capacitor. The cylinder near the output assembly independently clamps the third electrolytic capacitor through the third cylinder. The first cylinder continues to extend, pushing the moving platform toward the output assembly. The two cylinders near the input assembly are engaged with the gear and rack, and they flip synchronously with the movement of the moving platform. S4. When the mobile platform approaches the output assembly, the third cylinder controls the clamping rod according to the detection results. When unqualified products are detected, the third cylinder contracts, the clamping rod loosens, and the electrolytic capacitor falls into the waste frame. When qualified products are detected, the clamping rod remains clamped and continues to move with the mobile platform to the top of the output assembly to complete the output.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The input assembly and the output assembly cooperate to continuously transport electrolytic capacitors to the testing space. The positioning cylinder and the lifting mechanism automatically lift the electrolytic capacitors, reducing manual intervention and improving testing efficiency. The clamping mechanism achieves synchronous clamping through connecting rod transmission, ensuring that the electrolytic capacitors are fixed in position during transfer and avoiding detection errors caused by shaking. The two cylinders near the input component automatically flip during movement through the meshing of gears and racks, allowing the camera component to capture all angles of the electrolytic capacitor surface, covering the blind spots of traditional fixed-viewing angle inspection and improving the comprehensiveness of defect identification. The cylinder near the output component is independently controlled by a third cylinder, which can accurately release qualified products or reject unqualified products, realizing automated sorting. Through designs such as automated transmission, multi-station collaboration, precise clamping and flipping, and reliable positioning, the device significantly improves the efficiency, accuracy, and stability of electrolytic capacitor appearance defect detection. It also automatically removes defective products and reduces labor costs, making it suitable for quality control scenarios in large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the detection component structure of the present invention; Figure 2This is a schematic diagram of another viewing angle detection component structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic structural diagram of the clamping mechanism of the present invention; Figure 5 This is a schematic diagram of the internal structure of the top frame of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the internal structure of the bottom support platform of the present invention.

[0016] In the figure: 1. Detection component; 2. Bottom support platform; 3. Top frame; 4. Input component; 5. Output component; 6. Moving platform; 7. Extension bar; 8. Guide groove; 9. Projecting plate; 10. Pushing mechanism; 11. First L-shaped moving block; 12. Inclined platform; 13. First cylinder; 14. Groove; 15. Third cylinder; 16. Cylinder; 17. Clamping mechanism; 18. Center column; 19. Moving disk; 20. First fixed groove; 21. Sliding block; 22. First connecting rod; 23. Clamping rod; 24. Second sliding groove; 25. Connecting frame; 26. Rotating cylinder; 27. Support surface; 28. Spring; 29. ​​Gear; 30. Rack; 31. Lifting mechanism; 32. Positioning cylinder; 33. Lifting cylinder; 34. Second L-shaped moving block; 35. Second connecting rod; 36. Second cylinder; 37. Protective cover; 38. Circular cover. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] like Figure 1-Figure 7The electrolytic capacitor appearance defect detection device shown in the figure includes a detection component 1, which includes a bottom support platform 2 and a top frame 3. The top frame 3 is located directly above the bottom support platform 2. An input component 4 and an output component 5 are respectively provided at both ends of the top of the bottom support platform 2. The input component 4 and the output component 5 are used to transport the electrolytic capacitor. The space between the input component 4 and the output component 5 is the detection space for the electrolytic capacitor. A mobile platform 6 is movably installed inside the top frame 3. Three cylinders 16 are evenly installed on the bottom of the mobile platform 6. A pushing mechanism 10 is provided inside the mobile platform 6. A clamping mechanism 17 is provided inside the cylinder 16. The pushing mechanism 10 can drive the mobile platform 6 to move, and the pushing mechanism 10 can also The clamping mechanism 17 can be driven to clamp the electrolytic capacitor. Three positioning cylinders 32 are provided on the surface of the bottom support platform 2. The positioning cylinders 32 are used to support the electrolytic capacitor. A lifting mechanism 31 is provided inside the positioning cylinder 32. The lifting mechanism 31 can lift the electrolytic capacitor on the top of the positioning cylinder 32. Through the cooperation of the pushing mechanism 10, the clamping mechanism 17 and the lifting mechanism 31, the automatic loading and unloading of the electrolytic capacitor can be realized. In conjunction with the design of the detection space, a pipeline operation of transportation, detection and output is formed, which realizes the efficient and accurate detection of the appearance defects of the electrolytic capacitor. It has the advantages of high detection efficiency, reliable accuracy, strong adaptability and low cost, and can significantly improve the quality control level in the production process of electrolytic capacitors.

[0020] A protruding bar 7 is fixedly installed on the top of the moving platform 6, and a guide groove 8 is opened on the top of the top frame 3. The top of the protruding bar 7 movably passes through the guide groove 8. A protruding plate 9 is fixedly installed on the top of the protruding bar 7, and the protruding plate 9 is slidably installed above the top frame 3. When the moving platform 6 moves inside the top frame 3, the protruding bar 7 on the top of the moving platform 6 moves synchronously with the moving platform 6, and its top passes through the guide groove 8 of the top frame 3, and drives the top protruding plate 9 to slide above the top frame 3, thereby enhancing the stability of the movement of the moving platform 6.

[0021] A protective cover 37 is provided at the end of the input component 4 to provide shielding for the electrolytic capacitor at the end of the input component 4 before the electrolytic capacitor enters the detection space. When the movable platform 6 moves to one end of the input component 4, the three positioning cylinders 32 are respectively located directly below the three cylinders 16, and the positioning cylinder 32 close to the input component 4 is installed inside the protective cover 37. The three cylinders 16 can support the electrolytic capacitor. The transmission of the electrolytic capacitor by the input component 4 will transport the electrolytic capacitor to the surface of the cylinder 16 at the end of the input component 4. The clamping mechanism 17 is started to clamp and fix the electrolytic capacitors at the top of the three cylinders 16. Subsequently, the pushing mechanism 10 is activated again to drive the movable platform 6 to move toward the direction of the output component 5, thereby transferring the clamped electrolytic capacitors to the output component 5 one by one.

[0022] The pushing mechanism 10 includes a first cylinder 13, which is installed on the end face of the top frame 3 near the input component 4. An operating compartment is opened inside the moving platform 6, and a first L-shaped moving block 11 is provided for internal movement of the operating compartment. The output end of the first cylinder 13 is fixedly connected to the first L-shaped moving block 11. The first cylinder 13 serves as the power source of the pushing mechanism 10. The output end of the first cylinder 13 is fixedly connected to the first L-shaped moving block 11 in the operating compartment inside the moving platform 6. As the output end of the first cylinder 13 is extended and retracted, the first L-shaped moving block 11 is pushed or pulled in the operating compartment. When the electrolytic capacitor needs to be transferred, the first cylinder 13 extends to push the first L-shaped moving block 11, and the first L-shaped moving block 11 is in the operating compartment. Movement, when the end of the first L-shaped moving block 11 moves to the end of the operating chamber, the first cylinder 13 continues to extend, and the first L-shaped moving block 11 has a pushing effect on the moving platform 6, thereby driving the moving platform 6 to move toward the output component 5. The cylinder 16 and the clamping mechanism 17 installed at the bottom of the moving platform 6 can transfer the electrolytic capacitor synchronously. After the transfer is completed, the first cylinder 13 contracts and pulls the first L-shaped moving block 11. The first L-shaped moving block 11 moves toward the input component 4 in the operating chamber. When the first L-shaped moving block 11 moves to the end of the operating chamber close to the end of the first cylinder 13, the first L-shaped moving block 11 has a pulling effect on the moving platform 6, causing the moving platform 6 to reset and prepare for the next operation.

[0023] The clamping mechanism 17 includes a movable plate 19, which is movably mounted inside the cylinder 16. A limiting groove is provided on the inner wall of the cylinder 16. A limiting block is provided at the end of the movable plate 19. The surface of the limiting block is slidably mounted in the limiting groove. Two first fixed grooves 20 are symmetrically provided at the bottom of the movable plate 19. Two sliding blocks 21 are fixedly mounted inside the first fixed grooves 20, and the two sliding blocks 21 are symmetrical. A first connecting rod 22 is installed at the bottom of the sliding block 21 through a rotating shaft. Two second sliding grooves 24 are symmetrically provided at the bottom of the cylinder 16. The second sliding groove 24 is parallel to the first fixed groove 20. Two clamping rods 23 are symmetrically provided below the cylinder 16, and the two clamping rods 23 are symmetrically mounted below the cylinder 16. The top ends of the holding rods 23 are slidably installed in the second sliding grooves 24, and the bottom ends of the first connecting rods 22 are rotatably connected to the top ends of the clamping rods 23 through the rotating shaft. A center column 18 is provided above the movable disk 19, and the bottom end of the center column 18 is rotatably connected to the movable disk 19. When the center column 18 moves upward, it drives the movable disk 19 to move axially upward in the cylinder 16. When the movable disk 19 rises, the first fixed groove 20 at its bottom drives the internal sliding block 21 to rise synchronously. The sliding block 21 pulls the clamping rod 23 through the first connecting rod 22. When the sliding block 21 rises, the first connecting rod 22 pushes the clamping rod 23 along the second sliding groove 24 to move closer to the center, thereby realizing the clamping operation of the electrolytic capacitor.

[0024] Two inclined platforms 12 are installed on the surface of the first L-shaped moving block 11. Two pulling-up mechanisms are arranged inside the moving platform 6. The pulling-up mechanism includes a rotating drum 26. The rotating drum 26 is above the inclined platform 12. The two sides of the rotating drum 26 are connected to the connecting frame 25 through a rotating shaft. The bottom of the connecting frame 25 is connected to the central column 18. The top of the connecting frame 25 is fixedly installed with a supporting surface 27. The top of the supporting surface 27 is provided with a spring 28. The top of the spring 28 is connected to the inner wall of the moving platform 6. The two pulling-up mechanisms are respectively matched with the two clamping mechanisms 17 close to the input component 4. The end of the moving platform 6 close to the output component 5 is provided with a groove 14. The groove 14 is provided with a third cylinder 15 inside, and the third cylinder 15 is located just above the cylinder 16 at one end near the output component 5. The output end of the third cylinder 15 is connected to the clamping mechanism 17 inside the cylinder 16 just below it. When the first cylinder 13 pushes the first L-shaped moving block 11, the two inclined platforms 12 on its surface move accordingly. The inclined platform 12 cooperates with the rotating cylinder 26 of the pulling mechanism. When the inclined platform 12 moves forward, the inclined surface gradually lifts the rotating cylinder 26, driving the connecting frame 25 and the center column 18 to rise, thereby driving the moving disk 19 to move upward, so that the clamping rods 23 of the two clamping mechanisms 17 near the input component 4 clamp the electrolytic capacitor inward. When the first The cylinder 13 contracts and the inclined plane 12 retreats. Under the pulling force of the spring 28, the rotating drum 26, the connecting frame 25 and the center column 18 are reset, and the clamping rod 23 is loosened. One end of the spring 28 at the top of the connecting frame 25 is connected to the inner wall of the movable platform 6, and the other end is connected to the supporting surface 27. The spring 28 provides a reset elastic force for the pull-up mechanism. When the inclined plane 12 no longer lifts the rotating drum 26, the spring 28 drives the pull-up mechanism to move downward, and the connecting frame 25 and the center column 18 also move downward synchronously, so that the clamping mechanism 17 returns to its initial state and waits for the next clamping action. The movable platform 6 is close to the groove 14 at one end of the output component 5, and the third cylinder 15 can be independently controlled. The clamping mechanism 17 in the cylinder 16 directly below it is controlled, and the third cylinder 15 extends out to push the central column 18, so that the clamping mechanism 17 clamps the electrolytic capacitor. The electrolytic capacitor clamped by the clamping mechanism 17 has been tested at this time. When it is necessary to test the electrolytic capacitor that fails, the third cylinder 15 will shrink during the movement of the movable platform 6, and the clamping mechanism 17 will cancel the clamping of the electrolytic capacitor that fails the test. The electrolytic capacitor that fails the test will fall into the waste frame between the output component 5 and the positioning cylinder 32. The electrolytic capacitor that passes the test will be released to the surface of the output component 5 by the clamping mechanism 17.

[0025] The two cylinders 16 near the input assembly 4 are rotatably connected to the moving platform 6, and a gear 29 is installed on the surface of the cylinder 16. A rack 30 is installed on the inner wall of the top frame 3. The gear 29 meshes with the rack 30. The other cylinder 16 is fixedly connected to the moving platform 6. When the first cylinder 13 drives the first L-shaped moving block 11 to drive the moving platform 6 to move horizontally in the top frame 3, the gears 29 on the surfaces of the two rotatably connected cylinders 16 near the input assembly 4 will mesh with the rack 30 fixedly installed on the inner wall of the top frame 3. As the moving platform 6 moves linearly, the gear 29 rotates under the constraint of the rack 30, thereby driving the cylinder 16 and the clamping mechanism 17 inside it to rotate synchronously, while the other cylinder 16 fixedly connected to the moving platform 6 only moves with the moving platform 6. It moves linearly without generating rotation. During the rotation of the cylinder 16, the clamping mechanism 17 inside it continues to maintain the clamping state of the electrolytic capacitor. Through the meshing transmission of the gear 29 and the rack 30, the electrolytic capacitor can be flipped at an angle while being clamped. When the electrolytic capacitor moves to the top of the next positioning cylinder 32, the camera assembly on the side of the detection space can shoot the electrolytic capacitor from multiple angles. When the movable platform 6 is reset under the action of the first cylinder 13, the gear 29 rotates in the opposite direction along the rack 30, and the cylinder 16 also rotates back to the initial angle, waiting for the next electrolytic capacitor clamping and detection process. During this process, the pulling mechanism and the third cylinder 15 still cooperate according to the original logic to ensure the normal clamping, movement and release of the electrolytic capacitor.

[0026] The lifting mechanism 31 includes a lifting cylinder 33, each positioning cylinder 32 is movably installed with a lifting cylinder 33, the bottom of the bottom support platform 2 is movably installed with a second L-shaped moving block 34, the bottom of the lifting cylinder 33 is connected to the second connecting rod 35 through a rotating shaft, the bottom of the second connecting rod 35 is connected to the second L-shaped moving block 34 through a rotating shaft, a second cylinder 36 is provided on the outside of the bottom support platform 2, the output end of the second cylinder 36 is connected to the second L-shaped moving block 34, a circular cover 38 is provided on the top of the positioning cylinder 32, the circular cover 38 is on the outside of the lifting cylinder 33, the second cylinder 36 serves as a power source, and its output end pushes the second L-shaped moving block 34 slides horizontally in the bottom support platform 2, and the two ends of the second connecting rod 35 are respectively connected to the bottom of the lifting cylinder 33 and the second L-shaped moving block 34 through a rotating pair. When the second L-shaped moving block 34 moves horizontally, the horizontal thrust is converted into a vertical lifting force of the lifting cylinder 33 through the angle change of the second connecting rod 35. The lifting cylinder 33 rises axially in a straight line inside the positioning cylinder 32, lifting the electrolytic capacitor placed on the top of the positioning cylinder 32, so that it is separated from the surface of the positioning cylinder 32, which is convenient for the clamping mechanism 17 to grab. During the lifting process, the circular cover 38 limits the bottom edge of the electrolytic capacitor to prevent it from radially offsetting during the rising process.

[0027] A method for detecting appearance defects of electrolytic capacitors comprises the following steps: S1, the input assembly 4 continuously transports the electrolytic capacitors to the top of the positioning cylinder 32 in the protective cover 37, and the electrolytic capacitors transported by the input assembly 4 are moved to the tops of the other two positioning cylinders 32 in sequence through the pushing mechanism 10 and the clamping mechanism 17; S2: The second cylinder 36 pushes the second L-shaped moving block 34, which drives the lifting cylinder 33 upward through the second connecting rod 35, lifting the electrolytic capacitor to the clamping range of the cylinder 16. At the same time, the camera assembly on the side of the detection space takes multi-angle photos of the electrolytic capacitor after lifting; S3: The first cylinder 13 extends, pushing the first L-shaped moving block 11. Its inclined platform 12 lifts the rotating cylinder 26, driving the central column 18 upward, so that the two clamping mechanisms 17 near the input component 4 clamp the electrolytic capacitor. The cylinder 16 near the output component 5 independently clamps the third electrolytic capacitor through the third cylinder 15. The first cylinder 13 continues to extend, pushing the moving platform 6 toward the output component 5. The two cylinders 16 near the input component 4 are engaged with the gear 29 and the rack 30, and they rotate 180 degrees synchronously with the movement of the moving platform 6. S4. When the movable table 6 approaches the output component 5, the third cylinder 15 controls the clamping rod 23 according to the detection results. Since the electrolytic capacitors are transmitted in sequence, the electrolytic capacitors at the top of the two positioning cylinders 32 near the output component 5 are detected by the camera component. The information is transmitted by existing mature components such as sensors and electrical signal outputs. When the third cylinder 15 controls its bottom clamping mechanism 17 to transport the electrolytic capacitors, there will be two working states. When unqualified products are detected, the third cylinder 15 contracts, the clamping rod 23 is released, and the electrolytic capacitor falls to the waste frame. When qualified products are detected, the clamping rod 23 remains clamped and continues to move with the movable table 6 to the top of the output component 5 to complete the output.

[0028] Working principle: First, the moving platform 6 is located at one end of the top frame 3 close to the input component 4, the three cylinders 16 are aligned with the three positioning cylinders 32 of the bottom support platform 2, the jacking mechanism 31 is in the lowest position, and the circular cover 38 on the top of the positioning cylinder 32 supports the electrolytic capacitor, waiting for the input component 4 to transport it. Then, the input component 4 can continuously transport the electrolytic capacitor along the track to the top of the positioning cylinder 32 in the protective cover 37. According to the method described below, the electrolytic capacitors can be transported one by one, so that the tops of the three positioning cylinders 32 will be placed with electrolytic capacitors. Then the device works continuously, the second cylinder 36 is started, pushing the second L-shaped moving block 34 to move horizontally, and the jacking cylinder 33 is vertically moved through the second connecting rod 35. Lift straight up until the top of the lifting cylinder 33 is horizontally aligned with the top of the circular cover 38, and the lifting cylinders 33 of the three positioning cylinders 32 rise synchronously to lift the electrolytic capacitor into the clamping range of the cylinder 16. At the same time, the camera assembly installed on the side of the detection space can shoot the electrolytic capacitor from multiple angles. In the next step, the first cylinder 13 extends to push the first L-shaped moving block 11 to move toward the output component 5. The inclined platform 12 on the surface of the first L-shaped moving block 11 lifts the rotating cylinder 26, driving the connecting frame 25 and the center column 18 to rise. The center column 18 drives the moving disk 19 to move up in the cylinder 16, and through the first connecting rod 22, the clamping rods 23 of the two clamping mechanisms 17 close to the input component 4 are brought closer to the center to clamp the electrolytic capacitor. The container, the cylinder 16 close to the output component 5 independently controls the clamping rod 23 through the third cylinder 15 to complete the clamping of the third electrolytic capacitor. The first cylinder 13 continues to extend. When the first L-shaped moving block 11 touches the end of the operating chamber, it pushes the moving platform 6 to move toward the output component 5 as a whole. The gears 29 on the surfaces of the two cylinders 16 close to the input component 4 are engaged with the rack 30 of the top frame 3 and rotate synchronously with the linear motion of the moving platform 6. Therefore, during the transmission process of the electrolytic capacitor, the electrolytic capacitor can be flipped 180 degrees. The fixedly connected cylinder 16 only moves horizontally. When the moving platform 6 moves to the vicinity of the output component 5, the third cylinder 15 controls the clamping rod 23 according to the detection results. If the electrolytic capacitor is not If qualified, the third cylinder 15 contracts, the clamping rod 23 is loosened, and the electrolytic capacitor falls to the waste frame between the output component 5 and the positioning cylinder 32. If qualified, the clamping rod 23 remains clamped and continues to move with the movable platform 6 to above the output component 5. After the end of the movable platform 6 reaches directly above the output component 5, the central column 18 of all clamping mechanisms 17 descends, the clamping rod 23 opens, and the electrolytic capacitor inside the protective cover 37 will move to the top of the middle positioning cylinder 32. The electrolytic capacitor at the top of the middle positioning cylinder 32 will move to the top of the positioning cylinder 32 near one end of the output component 5. The electrolytic capacitor at the top of the positioning cylinder 32 near the output component 5 will move to the transmission track of the output component 5, thereby realizing the one-by-one transmission of the electrolytic capacitors.

[0029] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the invention as claimed.

Claims

1. An electrolytic capacitor appearance defect detection device, comprising a detection component (1), characterized in that: The detection component (1) includes a bottom support platform (2) and a top frame (3), wherein the top frame (3) is located directly above the bottom support platform (2), and an input component (4) and an output component (5) are respectively provided at both ends of the top of the bottom support platform (2), wherein the input component (4) and the output component (5) are used for conveying electrolytic capacitors, and the space between the input component (4) and the output component (5) is a detection space for electrolytic capacitors, and a movable platform (6) is movably installed inside the top frame (3), and three cylinders (16) are evenly installed at the bottom of the movable platform (6). A pushing mechanism (10) is provided inside the movable platform (6), and a clamping mechanism (17) is provided inside the cylinder (16). The pushing mechanism (10) can drive the movable platform (6) to move, and the pushing mechanism (10) can also drive the clamping mechanism (17) to clamp the electrolytic capacitor. Three positioning cylinders (32) are provided on the surface of the bottom support platform (2). The positioning cylinders (32) are used to support the electrolytic capacitor. A lifting mechanism (31) is provided inside the positioning cylinder (32). The lifting mechanism (31) can lift the electrolytic capacitor on the top of the positioning cylinder (32).

2. The electrolytic capacitor appearance defect detection device according to claim 1, characterized in that: A protruding bar (7) is fixedly installed on the top of the movable platform (6), a guide groove (8) is opened on the top of the top frame (3), the top of the protruding bar (7) movably passes through the guide groove (8), and a protruding plate (9) is fixedly installed on the top of the protruding bar (7), and the protruding plate (9) is slidably installed above the top frame (3).

3. The electrolytic capacitor appearance defect detection device according to claim 1, characterized in that: A protective cover (37) is provided at the end of the input component (4). When the movable platform (6) moves to one end of the input component (4), the three positioning cylinders (32) are respectively located directly below the three cylinders (16), and the positioning cylinder (32) close to the input component (4) is installed inside the protective cover (37).

4. The electrolytic capacitor appearance defect detection device according to claim 1, characterized in that: The pushing mechanism (10) includes a first cylinder (13), which is installed on the end surface of the top frame (3) close to the input component (4). An operating compartment is provided inside the movable platform (6), and a first L-shaped movable block (11) is movably provided inside the operating compartment. The output end of the first cylinder (13) is fixedly connected to the first L-shaped movable block (11).

5. The electrolytic capacitor appearance defect detection device according to claim 4, characterized in that: The clamping mechanism (17) includes a movable plate (19), the movable plate (19) is movably mounted inside the cylinder (16), the inner wall of the cylinder (16) is provided with a limit groove, the end of the movable plate (19) is provided with a limit block, the surface of the limit block is slidably mounted in the limit groove, the bottom of the movable plate (19) is symmetrically provided with two first fixed grooves (20), the inside of the first fixed grooves (20) are respectively fixedly mounted with two sliding blocks (21), and the two sliding blocks (21) are symmetrical, and the bottom of the sliding block (21) is rotatably mounted with a first connecting rod ( 22), two second sliding grooves (24) are symmetrically provided at the bottom of the cylinder (16), and the second sliding grooves (24) are parallel to the first fixed groove (20), and two clamping rods (23) are symmetrically provided below the cylinder (16), and the top ends of the two clamping rods (23) are respectively slidably installed in the second sliding grooves (24), and the bottom end of the first connecting rod (22) is rotatably connected to the top end of the clamping rod (23) through a rotating shaft, and a central column (18) is provided above the movable disk (19), and the bottom end of the central column (18) is rotatably connected to the movable disk (19).

6. The electrolytic capacitor appearance defect detection device according to claim 5, characterized in that: Two inclined platforms (12) are installed on the surface of the first L-shaped moving block (11), and two pull-up mechanisms are arranged inside the moving platform (6). The pull-up mechanism includes a rotating drum (26), and the rotating drum (26) is located above the inclined platform (12). Both sides of the rotating drum (26) are connected to a connecting frame (25) through a rotating shaft. The bottom of the connecting frame (25) is connected to the central column (18), and a supporting surface (27) is fixedly installed on the top of the connecting frame (25). A spring (28) is arranged on the top of the supporting surface (27). The spring (28) ) is connected to the inner wall of the movable platform (6), the two pulling mechanisms are respectively matched with the two clamping mechanisms (17) close to the input component (4), and a groove (14) is provided at one end of the movable platform (6) close to the output component (5), and a third cylinder (15) is provided inside the groove (14). The third cylinder (15) is located directly above the cylinder (16) close to one end of the output component (5), and the output end of the third cylinder (15) is connected to the clamping mechanism (17) inside the cylinder (16) directly below it.

7. The electrolytic capacitor appearance defect detection device according to claim 6, characterized in that: The two cylinders (16) close to the input assembly (4) are rotatably connected to the movable platform (6), and a gear (29) is installed on the surface of the cylinders. A rack (30) is installed on the inner wall of the top frame (3), and the gear (29) is engaged with the rack (30). The other cylinder (16) is fixedly connected to the movable platform (6).

8. The electrolytic capacitor appearance defect detection device according to claim 1, characterized in that: The lifting mechanism (31) includes a lifting cylinder (33), the interior of each positioning cylinder (32) is movably installed with the lifting cylinder (33), the interior of the bottom support platform (2) is movably installed with a second L-shaped moving block (34), the bottom of the lifting cylinder (33) is connected to a second connecting rod (35) via a rotating shaft, the bottom of the second connecting rod (35) is connected to the second L-shaped moving block (34) via a rotating shaft, a second cylinder (36) is provided on the outside of the bottom support platform (2), the output end of the second cylinder (36) is connected to the second L-shaped moving block (34), and a circular cover (38) is provided on the top of the positioning cylinder (32), and the circular cover (38) is located on the outside of the lifting cylinder (33).

9. A method for detecting appearance defects of electrolytic capacitors, applied to an electrolytic capacitor appearance defect detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, the input component (4) continuously transports the electrolytic capacitors to the top of the positioning cylinder (32) in the protective cover (37), and the electrolytic capacitors transported by the input component (4) can be moved to the tops of the other two positioning cylinders (32) in sequence through the pushing mechanism (10) and the clamping mechanism (17); S2, the second cylinder (36) pushes the second L-shaped moving block (34), drives the lifting cylinder (33) to rise through the second connecting rod (35), lifts the electrolytic capacitor to the clamping range of the cylinder (16), and at the same time, the camera assembly on the side of the detection space takes multi-angle photos of the electrolytic capacitor after lifting; S3, the first cylinder (13) extends, pushing the first L-shaped moving block (11), and its inclined platform (12) lifts the rotating cylinder (26), driving the central column (18) to rise, so that the two clamping mechanisms (17) close to the input component (4) clamp the electrolytic capacitor, and the cylinder (16) close to the output component (5) independently clamps the third electrolytic capacitor through the third cylinder (15). The first cylinder (13) continues to extend, pushing the moving platform (6) to move toward the output component (5). The two cylinders (16) close to the input component (4) are engaged with the gear (29) and the rack (30), and are synchronously turned 180 degrees when the moving platform (6) moves; S4, when the moving platform (6) approaches the output assembly (5), the third cylinder (15) controls the clamping rod (23) according to the detection result. When an unqualified product is detected, the third cylinder (15) contracts, the clamping rod (23) is loosened, and the electrolytic capacitor falls into the waste frame. When a qualified product is detected, the clamping rod (23) remains clamped and continues to move with the moving platform (6) to the top of the output assembly (5), completing the output.

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