Defect detection device for capacitor pins

Abstract

The invention provides a defect detection device for capacitor pins, and relates to the technical field of capacitor detection, the defect detection device comprises a support bracket, the top of which is provided with a positioning ring; a laser detection probe and a visual sensor are respectively mounted on the collection plate; a positioning plate is mounted on the supporting plate, a driving motor is mounted on one side of the top of the supporting plate, and a rotating pipe is mounted at the output end of the driving motor; a flow guide groove is formed in the outer side of a rotating pipe, and two positioning side plates are installed on the outer side of the rotating pipe. The positioning side plates are located on the inner sides of the positioning plates, and an air bag is installed between the two positioning side plates. The expanded air bag drives the capacitor to rotate, and the pins of the capacitor rotate in all directions in the detection range, so that the problem of detection omission caused by collinear arrangement directions of the pins is avoided, the accuracy and comprehensiveness of detection are improved, and the problem of detection omission of pin defects caused by detection blind areas formed by shielding of front-end pins of rear-end pins is solved.

Description

Technical Field

[0001] This invention relates to the field of capacitor testing technology, and more particularly to a defect detection device for capacitor pins. Background Technology

[0002] A capacitor is a device used in a circuit to store electrical energy. It accumulates and releases charge by storing energy in an electric field. The leads are used as the positive and negative terminals of the capacitor. Therefore, a testing device is needed to test the capacitor leads to ensure their integrity and to ensure stable capacitor performance and safe circuit operation.

[0003] In existing technologies, fixed cameras are typically used to detect defects in capacitor pins. However, when capacitors are placed arbitrarily on the inspection platform, and the pin arrangement is approximately collinear with the camera's optical axis, the rear pins are blocked by the front pins, creating a blind spot that causes pin defects to be missed. Increasing the number of cameras to expand the field of view increases the cost of matching hardware, system programming, and multi-sensor data. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a defect detection device for capacitor pins to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a defect detection device for capacitor leads, specifically comprising: a support bracket, wherein a positioning ring is mounted on the top of the support bracket; a first support plate is mounted on one side of the bottom of the support bracket; a feed hood is mounted on the top of the first support plate; a support plate is mounted on the outer bottom of the feed hood; a second support plate is mounted on the other side of the bottom of the support bracket; the bottom of the second support plate is connected to the top side of the support plate, and a detection data analysis and processing component is mounted on the top inner side of the second support plate; and a detection data analysis and processing component is mounted on the bottom of the second support plate. A collection plate is provided; a laser detection probe and a vision sensor are respectively installed on the collection plate; a positioning plate is installed on the plate, a drive motor is installed on one side of the top of the plate, and a rotating tube is installed on the output end of the drive motor; the rotating tube is cylindrical and is rotatably installed in the middle of the positioning plate, and a guide groove is opened on the outer side of the rotating tube, and two positioning side plates are installed on the outer side of the rotating tube; the positioning side plates are located on the inner side of the positioning plate, and an airbag is installed between the two positioning side plates; the outer side of the airbag is provided with a protrusion, and the airbag is located on the outer side of the guide groove.

[0006] Furthermore, the positioning ring is a ring structure, and a guide ring is rotatably mounted on the inner side of the positioning ring; the outer side of the guide ring is provided with a serrated structure, and a guide plate is mounted on the inner side of the guide ring; a fixed support plate is mounted on the side of the support bracket.

[0007] Furthermore, a drive motor is installed at the middle position of the fixed support plate, and a gear is installed on the output end of the top of the drive motor. The gear meshes with the sawtooth structure on the outer side of the guide ring.

[0008] Furthermore, the top of the guide plate is equipped with multiple evenly distributed positioning plates; the bottom of the positioning plates is equipped with connecting vertical rods; the connecting vertical rods are cylindrical structures, and the bottom of the guide plate is equipped with gears.

[0009] Furthermore, the inner bottom of the positioning carrier plate has an arc-shaped structure, and a guide groove is provided in the middle of the inner bottom of the positioning carrier plate. A drive threaded rod is rotatably installed on the outer bottom of the positioning carrier plate.

[0010] Furthermore, the threaded portion of the drive threaded rod is located inside the guide groove, and a limiting clamp is installed on the outer side of the drive threaded rod; the limiting clamp is located inside the positioning carrier plate.

[0011] Furthermore, a drive motor is installed on the inner side of the support plate one, and a gear is installed on the output end of the drive motor. The gear meshes with the gear at the bottom of the connecting vertical rod. The bottom of the feed hood is above the positioning carrier plate, and a limit plate is rotatably installed on the inner side of the top of the feed hood. A drive threaded rod two is rotatably installed on one side of the top of the feed hood.

[0012] Furthermore, a rubber block is installed at the inner end of the second drive threaded rod, and the inner end of the second drive threaded rod is slidably installed on the side of the limiting plate; the support plate has a ring structure, and the support plate is located above multiple positioning plates.

[0013] Furthermore, two sorting drive cylinders are installed on the top of the pallet, and a traction plate is installed on the output end of each of the two sorting drive cylinders; a sorting push plate is installed on the side of the traction plate, wherein the sorting push plate is slidably installed on the inner side of the positioning carrier plate.

[0014] Furthermore, an air pump assembly is installed on the top of the tray; a guide pipe is installed on the output end of the air pump assembly; a guide shroud is installed on the side end of the guide pipe; and the guide shroud is movably installed on the side end of the rotating tube.

[0015] This invention provides a defect detection device for capacitor pins, which has the following advantages: In use, this invention uses a guide plate to rotate the capacitor inside the positioning carrier plate to the assembly plate position. A laser detection probe and a vision sensor are used to detect defects such as capacitor pin length and cracks. At the same time, an inflating airbag drives the capacitor to rotate, ensuring that the capacitor pins rotate omnidirectionally within the detection range. This effectively avoids the problem of missed detections caused by collinear pin arrangement, greatly improving the accuracy and comprehensiveness of the detection. It can complete the omnidirectional detection of capacitor pin defects in a short time, improving detection efficiency and reducing detection costs.

[0016] Furthermore, this testing device, by setting a drive threaded rod and a guide groove at the bottom of the outer side of the positioning carrier plate, can flexibly adjust the width between the two limiting clamps according to the size of the capacitor. This ensures that the capacitor can be stably clamped inside the positioning carrier plate, avoiding shaking or displacement caused by differences in capacitor size. This provides a stable foundation for subsequent accurate detection of pin defects. The position of the capacitor pins is adjusted by rotating the positioning carrier plate on the guide plate, reducing the time for manual adjustment and position confirmation, and greatly improving the efficiency of the entire testing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A three-dimensional structural diagram of the bottom of the guide plate of the present invention is shown; Figure 3 A schematic cross-sectional view of the positioning ring structure of the present invention is shown; Figure 4 A cross-sectional view of the positioning carrier plate of the present invention is shown; Figure 5 A schematic diagram of the three-dimensional structure of the pallet of the present invention is shown; Figure 6 A cross-sectional view of the feed hood of the present invention is shown; Figure 7 A schematic diagram of the two-dimensional structure of the support plate of the present invention is shown; Figure 8 A three-dimensional structural diagram of the airbag of the present invention is shown; Figure 9 A cross-sectional view of the flow guide shield of the present invention is shown.

[0020] List of reference numerals 1. Support bracket; 101. Positioning ring; 102. Guide ring; 103. Guide plate; 104. Fixed support plate; 105. Positioning carrier plate; 106. Connecting vertical rod; 107. Guide slide groove; 108. Drive threaded rod one; 109. Limiting clamp; 2. Support plate one; 201. Feed hood; 202. Limiting plate; 203. Drive threaded rod two; 204. Pallet; 205. Traction plate; 206. Sorting pusher plate; 3. Support plate 2; 301. Detection data analysis and processing component; 302. Assembly plate; 303. Positioning plate; 304. Rotating tube; 305. Guide channel; 306. Positioning side plate; 307. Airbag; 308. Air pump assembly; 309. Guide tube; 3010. Guide cover. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 9 : Example 1: This invention proposes a defect detection device for capacitor pins, comprising: a support bracket 1, a positioning ring 101 mounted on the top of the support bracket 1; a support plate 2 mounted on one side of the bottom of the support bracket 1; the positioning ring 101 is annular, and a guide ring 102 is rotatably mounted on the inner side of the positioning ring 101; the outer side of the guide ring 102 has a serrated structure, and a guide plate 103 is mounted on the inner side of the guide ring 102; a fixed support plate 104 is mounted on the side of the support bracket 1; a drive motor is mounted at the middle position of the fixed support plate 104, and a gear is mounted on the output end of the top of the drive motor, the gear meshing with the serrated structure on the outer side of the guide ring 102; the guide plate 103... The top of the device is equipped with multiple evenly distributed positioning plates 105; the bottom of the positioning plates 105 is equipped with connecting vertical rods 106; the connecting vertical rods 106 are cylindrical, and the bottom of the connecting vertical rods 106 is equipped with guide plates 103, and the bottom of the guide plates 103 is equipped with gears; the bottom inner side of the positioning plates 105 is arc-shaped, and a guide groove 107 is provided in the middle of the bottom inner side of the positioning plates 105; a drive threaded rod 108 is rotatably installed on the bottom outer side of the positioning plates 105; the threaded part of the drive threaded rod 108 is located inside the guide groove 107, and a limiting clamp 109 is installed on the outer side of the drive threaded rod 108; the limiting clamp 109 is located inside the positioning plates 105.

[0023] In this embodiment of the invention, when performing defect detection on the capacitor leads, the width between the two limiting clamps 109 is adjusted according to the size of the capacitor. The drive threaded rod 108 is rotated at the bottom outer side of the positioning carrier plate 105, causing the bottoms of the two limiting clamps 109 to move relative to each other along the guide groove 107, so that the two limiting clamps 109 are at a suitable distance inside the positioning carrier plate 105. A sensor is provided inside the positioning carrier plate 105 to detect the position of the capacitor. The capacitor is placed sequentially inside the positioning carrier plate 105, and the drive motor inside the support plate 2... The gear on the output end of the machine drives the gear at the bottom of the connecting vertical rod 106 to rotate. The connecting vertical rod 106 drives the top positioning plate 105 to rotate on the guide plate 103, causing the capacitor inside the positioning plate 105 to rotate so that its pins face outward. The gear at the output end of the drive motor of the support bracket 1 fixed in the middle of the side plate 104 meshes with the guide ring 102 to rotate inside the positioning ring 101. The guide ring 102 drives the guide plate 103 to rotate intermittently, causing the guide plate 103 to drive the capacitors inside the positioning plate 105 in multiple places to rotate and detect pin defects.

[0024] In Example 2, based on Example 1, a feed hood 201 is installed on the top of the support plate 2; a support plate 204 is installed on the outer bottom of the feed hood 201; a drive motor is installed on the inner side of the support plate 2, and a gear is installed on the output end of the drive motor, which meshes with the gear at the bottom of the connecting vertical rod 106; the bottom of the feed hood 201 is above the positioning carrier plate 105, and a limit plate 202 is rotatably installed on the inner top of the feed hood 201; and the feed hood 201... A drive threaded rod 203 is rotatably mounted on one side of the top of 01; a rubber block is installed on the inner end of the drive threaded rod 203, and the inner end of the drive threaded rod 203 is slidably mounted on the side of the limiting plate 202; the pallet 204 has a ring structure and is located above multiple positioning carrier plates 105; two sorting drive cylinders are installed on the top of the pallet 204, and traction plates 205 are installed on the output ends of the two sorting drive cylinders; a sorting plate 205 is installed on the side of the traction plate 205. The sorting pusher 206 is slidably mounted on the inner side of the positioning carrier 105. When performing defect detection on the capacitor leads, the support plate 2 positions the feed hood 201. The drive threaded rod 203 rotates on the side of the feed hood 201, causing its inner end to push the limiting plate 202 to rotate. The bottom of the limiting plate 202 limits the inner space of the feed hood 201 to match the size of the capacitors, so that a large number of capacitors flow laterally downward inside the feed hood 201 and fall into the inner side of the positioning carrier 105. The guide plate 103 drives the capacitors inside the positioning carrier 105 to rotate. After the detection is completed, the two sorting drive cylinders on the tray 204 sort the qualified and unqualified capacitors respectively. The traction plate 205 at the output end of the sorting drive cylinder drives the sorting pusher 206 to move inside the positioning carrier 105. The two sorting pushers 206 push out the qualified and unqualified capacitors respectively.

[0025] In Example 3, based on Example 1, a second support plate 3 is installed on the other side of the bottom of the support bracket 1; the bottom of the second support plate 3 is connected to the top side of the support plate 204, and a detection data analysis and processing component 301 is installed on the inner top of the second support plate 3; a collection plate 302 is installed at the bottom of the detection data analysis and processing component 301; a laser detection probe and a vision sensor are respectively installed on the collection plate 302; a positioning plate 303 is installed on the support plate 204, a drive motor is installed on the top side of the support plate 204, and a rotating tube 304 is installed on the output end of the drive motor; the rotating tube 304 has a cylindrical structure and rotates... The tube 304 is rotatably mounted in the middle of the positioning plate 303, and a guide groove 305 is provided on the outer side of the rotating tube 304. Two positioning side plates 306 are installed on the outer side of the rotating tube 304. The positioning side plates 306 are located inside the positioning plate 303, and an airbag 307 is installed between the two positioning side plates 306. A protrusion is provided on the outer side of the airbag 307, and the airbag 307 is located outside the guide groove 305. An air pump assembly 308 is also installed on the top of the support plate 204. A guide tube 309 is installed on the output end of the air pump assembly 308. A guide shroud 3010 is installed on the side end of the guide tube 309. The guide shroud 3010 is movably mounted on the rotating tube 304. When performing defect detection on the capacitor leads at the side end of tube 304, guide plate 103 drives the capacitor inside the positioning carrier plate 105 to rotate to the position of collection plate 302. The laser detection probe and vision sensor on the bottom collection plate 302 of the detection data analysis and processing component 301 at the top of the inner side of support plate 303 detect defects such as the length and cracks of the capacitor leads. Meanwhile, the airflow generated by air pump component 308 flows through guide pipe 309 into guide shroud 3010, and then through one end of rotating tube 304 into the interior, and through guide groove 305 into the interior of airbag 307, causing airbag 307 to inflate and contact the electrical circuit. On the surface of the container, the positioning side plate 306 restricts the expansion range of the airbag 307 to prevent the airbag 307 from expanding into a spherical shape. The output end of the drive motor on one side of the top of the support plate 204 drives the rotating tube 304 to rotate in the middle position of the positioning plate 303. The rotating tube 304 drives the positioning side plate 306 and the airbag 307 to rotate, which increases the friction between the protrusion on the outside of the airbag 307 and the capacitor, causing the capacitor to rotate inside the positioning carrier plate 105. This allows the capacitor pins to rotate within the detection range of the laser detection probe and the vision sensor, enabling all-round detection of the pins and preventing the problem of missed detection due to the collinearity of the pin arrangement direction.

[0026] The working principle of this embodiment is as follows: Rotating the drive threaded rod 108 at the bottom outer side of the positioning carrier plate 105 causes the bottoms of two limiting clamps 109 to move relative to each other along the guide groove 107. The two limiting clamps 109 are positioned at a suitable distance inside the positioning carrier plate 105. Rotating the drive threaded rod 203 causes its inner end to push the limiting plate 202 to rotate. The bottom of the limiting plate 202 limits the inner space of the feed hood 201 to match the size of the capacitors. A large number of capacitors flow laterally downwards within the feed hood 201 and fall onto the inner side of the positioning carrier plate 105. Multiple capacitors are placed sequentially inside the positioning carrier plate 105. The gear on the output end of the drive motor drives the gear at the bottom of the connecting vertical rod 106 to rotate. The connecting vertical rod 106 causes the positioning carrier plate 105 to rotate on the guide plate 103, causing the capacitors inside the positioning carrier plate 105 to rotate so that their leads face outwards. The gear on the output end of the drive motor at the middle position of the fixed support plate 104 meshes with the guide ring 102 to rotate within the positioning ring 101. The guide ring 102 drives the guide plate 105 to rotate. 3. Intermittent rotation: The guide plate 103 drives the capacitor inside the positioning carrier plate 105 to the position of the collection plate 302. The laser detection probe and vision sensor on the collection plate 302 detect the length of the capacitor leads and defects such as cracks. The airflow generated by the air pump assembly 308 flows through the guide pipe 309 into the guide cover 3010, then through one end of the rotating pipe 304 into the interior, and through the guide groove 305 into the airbag 307, causing the airbag 307 to inflate and contact the surface of the capacitor. The output end of the drive motor drives the rotating pipe 304 to rotate in the middle position of the positioning plate 303. The rotating pipe 304 drives the positioning side plate 306 and the airbag 307 to rotate. The protrusion on the outside of the airbag 307 increases the friction with the capacitor, causing the capacitor to rotate inside the positioning carrier plate 105. The capacitor leads rotate within the detection range of the laser detection probe and vision sensor, and the leads are detected from all directions. After the detection is completed, the two sorting drive cylinders on the tray 204 sort the capacitors that pass the detection and those that fail the detection.

[0027] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0028] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0029] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A defect detection device for capacitor leads, comprising: A support bracket (1) is provided, with a positioning ring (101) installed on the top of the support bracket (1); a support plate (2) is installed on one side of the bottom of the support bracket (1); characterized in that a feed hood (201) is installed on the top of the support plate (2); a tray (204) is installed on the outer side of the bottom of the feed hood (201); a support plate (3) is installed on the other side of the bottom of the support bracket (1); the bottom of the support plate (3) is connected to the top side of the tray (204), and a detection data analysis and processing component (301) is installed on the top of the inner side of the support plate (3); a collection plate (302) is installed on the bottom of the detection data analysis and processing component (301); a laser detection probe and a vision sensor are respectively installed on the collection plate (302); a positioning plate (303) is installed on the tray (204), and a positioning plate (303) is installed on one side of the top of the tray (204). A drive motor is provided, and a rotating tube (304) is installed on the output end of the drive motor; the rotating tube (304) is rotatably installed in the middle position of the positioning plate (303), and a guide groove (305) is provided on the outer side of the rotating tube (304), and two positioning side plates (306) are installed on the outer side of the rotating tube (304); the positioning side plates (306) are located on the inner side of the positioning plate (303), and an airbag is installed between the two positioning side plates (306). 307); the airbag (307) has a protrusion on its outer side and is located on the outer side of the guide groove (305); the top of the support plate (204) is also equipped with an air pump assembly (308); a guide pipe (309) is installed on the output end of the air pump assembly (308); a guide shroud (3010) is installed on the side end of the guide pipe (309); the guide shroud (3010) is movably installed on the side end of the rotating tube (304); A guide ring (102) is rotatably mounted on the inner side of the positioning ring (101); a serrated structure is provided on the outer side of the guide ring (102), and a guide plate (103) is installed on the inner side of the guide ring (102); a fixed support plate (104) is installed on the side of the support bracket (1).

2. The defect detection device for capacitor leads according to claim 1, characterized in that, A drive motor is installed in the middle of the fixed support plate (104), and a gear is installed on the output end of the top of the drive motor. The gear meshes with the sawtooth structure on the outside of the guide ring (102).

3. A defect detection device for capacitor leads according to claim 2, characterized in that, The top of the guide plate (103) is equipped with multiple evenly distributed positioning plates (105); the bottom of the positioning plates (105) is equipped with connecting vertical rods (106); the bottom of the connecting vertical rods (106) is equipped with gears; and the bottom of the guide plate (103) is equipped with gears.

4. A defect detection device for capacitor leads according to claim 3, characterized in that, The bottom inner side of the positioning plate (105) is an arc-shaped structure, and a guide groove (107) is provided in the middle of the bottom inner side of the positioning plate (105). A drive threaded rod (108) is rotatably installed on the bottom outer side of the positioning plate (105).

5. A defect detection device for capacitor leads according to claim 4, characterized in that, The threaded portion of the drive threaded rod (108) is located inside the guide groove (107), and a limiting clamp (109) is installed on the outer side of the drive threaded rod (108); the limiting clamp (109) is located inside the positioning carrier plate (105).

6. A defect detection device for capacitor leads according to claim 5, characterized in that, A drive motor is installed on the inner side of the support plate (2), and a gear is installed on the output end of the drive motor. The gear meshes with the gear at the bottom of the connecting vertical rod (106). The bottom of the feed hood (201) is above the positioning carrier plate (105), and a limit plate (202) is rotatably installed on the inner side of the top of the feed hood (201). A drive threaded rod (203) is rotatably installed on one side of the top of the feed hood (201).

7. A defect detection device for capacitor leads according to claim 6, characterized in that, The inner end of the second drive threaded rod (203) is equipped with a rubber block, and the inner end of the second drive threaded rod (203) is slidably installed on the side of the limiting plate (202); the support plate (204) is located above the multiple positioning carrier plates (105).

8. A defect detection device for capacitor leads according to claim 7, characterized in that, Two sorting drive cylinders are installed on the top of the pallet (204), and a traction plate (205) is installed on the output end of each of the two sorting drive cylinders; a sorting push plate (206) is installed on the side of the traction plate (205), wherein the sorting push plate (206) can be slidably installed on the inner side of the positioning carrier plate (105).

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