A full-automatic aging test sorting machine for multi-channel aluminum electrolytic capacitor

Abstract

This invention relates to the field of capacitor production and testing equipment technology, and proposes a multi-channel fully automatic aging test and sorting machine for aluminum electrolytic capacitors. It includes a feeding assembly for receiving capacitors to be tested and conveying them one by one; and an aging sorting assembly connected to the feeding assembly for performing aging tests and sorting the capacitors. Through the arrangement of rotary guides and arc-shaped guides, a stepper motor drives the inner groove rotating frame and its radially distributed connecting frames to rotate along a circular path via transmission gears. Simultaneously, guide wheels are embedded in the continuously distributed arc-shaped guide grooves of the inner and outer arc-shaped guide plates to achieve trajectory constraint, forming a multi-channel parallel aging test channel. Each channel operates independently without interference, and the number of channels can be expanded as needed without being limited by the mechanical structure. This solves the problems of poor reliability, limited parallel channels, and unstable dynamic adsorption in the prior art.

Description

Technical Field

[0001] This invention relates to the field of capacitor production and testing equipment technology, specifically to a multi-pass type fully automatic aging test and sorting machine for aluminum electrolytic capacitors. Background Technology

[0002] After manufacturing, electrolytic capacitors have microscopic defects in the oxide film dielectric layer on the surface of the internal anode foil. They must undergo aging treatment (or energizing treatment), which involves applying a rated DC voltage at high or room temperature to allow the oxide film to self-repair under the action of the electrolyte, reducing leakage current to a specified range. After aging, all capacitors must be inspected and sorted for capacitance, loss tangent, equivalent series resistance, leakage current, withstand voltage characteristics, and external dimensions.

[0003] Currently, the fully automated equipment for this process in the industry is mainly divided into two categories: linear stepping conveyor and rotary table. In order to meet the aging time requirements, the linear stepping conveyor equipment needs to lay an extremely long conveyor line, resulting in the overall length of the equipment reaching tens of meters. This not only has extremely low space utilization and seriously wastes factory resources, but also the long-distance chain drive is prone to producing polygonal effects and cumulative errors, which leads to a decrease in the positioning accuracy of the fixture and poor contact of the test probe, causing misjudgments. While rotary sorting equipment shortens the overall machine length, in practical applications, each station still requires the independent installation of lifting cylinders, electromagnets, or electric push rods on the rotary table. This results in a large number of power lines, air pipes, and sensor cables hanging on the rotating body. During long-term high-speed intermittent rotation, the excessive number of rotary joint channels easily leads to air pipe wear and leakage, wire entanglement and breakage, resulting in a high equipment failure rate and a huge maintenance workload. At the same time, some equipment that uses negative pressure suction nozzles to transport capacitors is prone to capacitor tilting or even falling off due to the centrifugal force generated by the high-speed start and stop of the rotary table, relying solely on end-face negative pressure adsorption, causing detection interruption or component damage. In addition, most existing rotary machines are single-ring or double-ring structures, and the production capacity is limited by the rotary table diameter and the number of stations, failing to achieve a breakthrough in parallel processing capabilities from the perspective of single-machine structural design. Therefore, there is an urgent need to develop a fully automated sorting device that can significantly reduce the number of follow-up actuators, simplify the electrical connections of the rotating end, and realize multi-channel parallel aging tests. Summary of the Invention

[0004] This invention proposes a fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors, which solves the problems of poor reliability, limited parallel channels, and unstable dynamic adsorption in related technologies.

[0005] The technical solution of the present invention is as follows: a multi-channel type fully automatic aging test and sorting machine for aluminum electrolytic capacitors, including a feeding assembly for receiving capacitors to be tested and sorting and conveying them one by one;

[0006] An aging and sorting component is connected to the feeding component and is used to perform aging tests and sorting on capacitors.

[0007] The feeding assembly includes a distributor, a feeder, a sorter, and a progressive conveyor. The distributor distributes the capacitors to the feeder, the feeder conveys the capacitors in an orderly manner to the sorter, and the sorter is equipped with a rotating component, a lifting component, a vision recognition device, and an extraction end with a negative pressure adsorption function to transfer the capacitors from the feeder to the progressive conveyor and perform visual recognition on the capacitors. The progressive conveyor delivers the capacitors to the feeding end of the aging sorting assembly.

[0008] The aging sorting assembly includes a sorting box and a rotary guide, a rotary distributor, an arc guide, and a tester installed inside the sorting box.

[0009] The rotary guide, rotary distributor, and arc-shaped guide are arranged in multiple arrays to form a multi-channel parallel aging test channel. The rotary guide is used to drive the capacitor to move stepwise along a circular path. The arc-shaped guide is arranged on the inner and outer sides of the rotary guide to guide the movement trajectory of the capacitor. The rotary distributor is used to distribute the capacitor between the rotary guide and the arc-shaped guide. The tester is arranged along the capacitor movement path to perform multi-parameter detection on the capacitor.

[0010] As a preferred embodiment of the present invention, the distributor is composed of an inlet pipe and two outlet pipes connected to each other. A distributor plate is rotatably installed at the connection of the two outlet pipes. A telescopic cylinder is provided on one side of the distributor. A hinge shaft is connected to the telescopic cylinder and the outlet pipe.

[0011] The feeder consists of two symmetrically arranged vibrating screen trays, which are respectively located at the bottom of the two discharge pipes. A feeding track is installed at the output end of the vibrating screen tray, and a telescopic shaft is installed at the output end of the feeding track. A separator extraction block is installed at the end of the telescopic shaft.

[0012] As a preferred embodiment of the present invention, the sorter further includes a telescopic lead screw and a support frame, the support frame being installed on one side of the feeder;

[0013] The rotating assembly consists of a rotary motor, a spline nut, and a first lead screw nut. The spline nut and the first lead screw nut are connected to each other. The rotary motor is installed inside the support frame. The output end of the rotary motor and the first lead screw nut are connected by a first transmission belt.

[0014] The lifting assembly consists of a lifting motor and a second lead screw nut. The lifting motor is installed inside the support frame, and a second transmission belt is connected between the output end of the lifting motor and the second lead screw nut.

[0015] The telescopic lead screw is threadedly connected to the first lead screw nut and the second lead screw nut respectively.

[0016] As a preferred embodiment of the present invention, the sorter further includes a limit recognition component, which consists of a lifting limit slider and a connecting frame. The lifting limit slider is sleeved on the outer peripheral surface of the telescopic lead screw. A rotation damping block is movably sleeved on the outer peripheral surface of the lifting limit slider. A connecting frame is fixedly sleeved on the outer peripheral surface of the rotation damping block. An arc-shaped guide block is fixedly connected to the top of the connecting frame. The arc-shaped guide block is slidably assembled inside the support frame. The vision recognition device is installed at the bottom of the connecting frame. At least one illuminator is also provided on the vision recognition device.

[0017] In a preferred embodiment of the present invention, a connecting rod is fixedly connected to the bottom of the telescopic lead screw, and the extraction end is installed at one end of the connecting rod;

[0018] The extraction end consists of a negative pressure pipe with inner and outer cavities. A first negative pressure pipe and a second negative pressure pipe are respectively provided on one side of the top of the negative pressure pipe. The first negative pressure pipe and the second negative pressure pipe are respectively connected to the inner and outer cavities.

[0019] The bottom of the extraction end is provided with an elastic connector. The bottom of the elastic connector is provided with a negative pressure suction head and a covering airbag. The negative pressure suction head and the covering airbag are respectively connected to the inner and outer cavities. The inner wall of the negative pressure suction head is provided with a number of equidistant internal adsorption cavities. The bottom of the negative pressure suction head is provided with a suction cup ring, and the suction cup ring is provided with annular equidistant grooves.

[0020] As a preferred embodiment of the present invention, a regulator and a recycling pipeline are also provided on the transmission path of the sorter;

[0021] The regulator consists of an adjustment frame. A cylinder telescopic assembly is provided on one side of the adjustment frame. A rotating assembly is provided at the output end of the cylinder telescopic assembly. A clamping assembly is installed at the output end of the rotating assembly. Blowing heads are provided on both the upper and lower sides of the clamping assembly. A recognition camera is installed on the top of the adjustment frame.

[0022] The progressive conveyor consists of a left-right sliding assembly and a front-back sliding assembly. The front-back sliding assembly is installed at the output end of the left-right sliding assembly. A push plate is installed at the output end of the front-back sliding assembly. Several equidistantly distributed limiting conveyor blocks are provided on the push plate.

[0023] In a preferred embodiment of the present invention, the rotary guide consists of a stepper motor and an inner groove rotating frame. The stepper motor is installed inside the sorting box, and a transmission gear is installed at the output end of the stepper motor. An external gear ring is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame, and the transmission gear meshes with the external gear ring. A rotating circular frame is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame, and a plurality of circumferentially distributed connecting frames are fixedly connected to the rotating circular frame.

[0024] In a preferred embodiment of the present invention, the connecting frame is composed of a top connecting frame and a bottom connecting frame connected by a long screw, and a guide component is provided between the connecting frames;

[0025] The guide assembly consists of a sliding plate, which is disposed between the top connecting frame and the bottom connecting frame. An elastic component is connected between the sliding plate and the bottom connecting frame. Rotating shafts are rotatably mounted on both sides of the sliding plate. Guide wheels are movably sleeved on the outer circumference of the rotating shafts. The extraction end is mounted on the sliding plate. An air supply pipeline is connected between the extraction end and the rotary distributor.

[0026] As a preferred embodiment of the present invention, the arc-shaped guide is composed of an outer arc-shaped guide plate and an inner arc-shaped guide plate. The inner arc-shaped guide plate and the outer arc-shaped guide plate are fixedly connected inside the sorting box in an inner and outer sleeve configuration. The outer arc-shaped guide plate and the inner arc-shaped guide plate are provided with a plurality of continuously circumferentially distributed arc-shaped guide grooves, and the guide wheel is slidably assembled inside the arc-shaped guide grooves.

[0027] As a preferred embodiment of the present invention, the tester consists of several camera detectors, aging current monitors, capacitance and loss angle detectors, equivalent series resistance detectors, flash explosion and withstand voltage detectors, convex bottom detectors, appearance detectors, and two recycling pipes.

[0028] A plurality of the aforementioned aging current monitors, a plurality of the aforementioned capacitance and loss angle detectors, a plurality of the aforementioned equivalent series resistance detectors, a plurality of the aforementioned flash explosion and withstand voltage detectors, a plurality of the aforementioned convex bottom detectors, a plurality of the aforementioned appearance detectors, and two aforementioned recycling pipes are arranged equidistantly between the outer ring arc-shaped guide plate and the inner ring arc-shaped guide plate.

[0029] The camera identifiers are respectively installed on one side of several aging current monitors, several capacitance and loss angle detectors, several equivalent series resistance detectors, several flash explosion and withstand voltage detectors, several convex bottom detectors, several appearance detectors, and two recycling pipes.

[0030] The working principle and beneficial effects of this invention are as follows:

[0031] 1. This invention, through the setting of structures such as rotary guides and arc guides, allows the stepper motor to drive the inner groove rotating frame and the radially distributed connecting frame on it to rotate along a circular path via transmission gears. At the same time, the guide wheel is embedded in the arc guide grooves of the inner and outer ring arc guide plates to achieve trajectory constraint, forming a multi-pass parallel aging test channel. Each channel operates independently without interference, and the number of channels can be expanded as needed without being limited by the mechanical structure.

[0032] 2. This invention, through the design of a negative pressure suction head and an encasing airbag, etc., allows the first negative pressure pipeline to connect to the inner cavity, enabling the suction cup ring and the built-in adsorption cavity to form a negative pressure adsorption on the top of the capacitor. The second negative pressure pipeline pressurizes the outer cavity, causing the encasing airbag to expand radially and tighten around the circumference of the aluminum shell. The two work together to form a mechanical and pneumatic composite double clamping, which effectively resists the interference of centrifugal force and inertial force during high-speed transportation, ensuring that the capacitor remains stable and does not fall off throughout the transfer process.

[0033] 3. The present invention uses a rotating damping block and an arc-shaped guide block to form a rotational friction fit between the rotating damping block and the lifting limit slider through damping grease. The arc-shaped guide block is inserted into the arc-shaped guide groove of the support frame to limit the large-scale rotation of the connecting frame. This allows the visual recognizer to be constrained to move slowly within a specific arc-shaped trajectory when the extraction end swings back and forth at high speed, and always remain suspended directly above the capacitor to be recognized, thus realizing visual positioning and image acquisition under dynamic working conditions.

[0034] 4. By setting up structures such as the material distribution plate and the separator extraction block, the material distribution plate is driven by a telescopic cylinder through a hinge shaft to swing alternately in the inverted Y-shaped three-way cavity to achieve dual-path alternating flow. At the same time, the pen-shaped cylinder drives the telescopic shaft to move the separator extraction block to separate and push the capacitors at the end of the feeding track one by one, ensuring that the material is supplied in an orderly manner, eliminating multiple material jams and feeding disorder from the source, and significantly improving the reliability of equipment operation. Attached Figure Description

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the feeding assembly of the present invention;

[0038] Figure 3 This is a side view of the overall structure of the feeding assembly of the present invention;

[0039] Figure 4 This is a schematic diagram of the overall structure of the feeder of the present invention;

[0040] Figure 5 This is a schematic diagram of the overall structure of the feeder of the present invention;

[0041] Figure 6 This is a schematic diagram of the overall structure of the sorter of the present invention;

[0042] Figure 7 This is a schematic diagram of the overall structure of the extracted end of the present invention;

[0043] Figure 8 This is a cross-sectional view of the negative pressure suction head of the present invention;

[0044] Figure 9 This is a schematic diagram of the overall structure of the regulator of the present invention;

[0045] Figure 10 This is a schematic diagram of the overall structure of the expansion component of the present invention;

[0046] Figure 11 This is a schematic diagram of the overall structure of the progressive conveyor of the present invention;

[0047] Figure 12 This is a side view of the overall structure of the aging sorting component of the present invention;

[0048] Figure 13 This is a bottom view of the overall structure of the aging sorting component of the present invention;

[0049] Figure 14 This is a schematic diagram of the overall structure of the tester of the present invention;

[0050] Figure 15 This is a schematic diagram of the overall structure of the guiding component of the present invention;

[0051] Figure 16 This is a side view of the overall structure of the guide component of the present invention.

[0052] In the diagram: 1. Feeding assembly;

[0053] 11. Distributor; 111. Feed pipe; 112. Discharge pipe; 113. Distributor plate; 114. Telescopic cylinder; 115. Hinge shaft;

[0054] 12. Feeder; 121. Vibrating screen tray; 122. Feeding track; 123. Telescopic shaft; 125. Separating extraction block;

[0055] 13. Sorter; 130. Telescopic lead screw; 131. Support frame; 132. Rotating assembly; 1321. Rotary motor; 1322. Spline nut; 1323. First lead screw nut; 1324. First transmission belt; 133. Lifting assembly; 1331. Lifting motor; 1332. Second lead screw nut; 1333. Second transmission belt; 134. Limit recognition assembly; 1341. Lifting limit slider; 1342. Rotation damping block; 1343. Connecting frame; 1344. Arc-shaped guide block; 1345. Vision recognition device; 1346. Illuminator; 135. Connecting rod;

[0056] 136. Extraction tip; 1361. Negative pressure pipeline; 1362. First negative pressure pipeline; 1363. Second negative pressure pipeline; 1364. Flexible connector; 1365. Negative pressure suction head; 1366. Built-in suction chamber; 1367. Suction cup ring; 1368. Encapsulating airbag;

[0057] 14. Regulator; 141. Adjustment frame; 142. Cylinder telescopic assembly; 143. Rotating assembly; 144. Clamping assembly; 145. Blowing head; 146. Recognition camera;

[0058] 15. Progressive conveyor; 151. Left and right sliding assembly; 152. Front and back sliding assembly; 153. Push plate; 154. Limiting conveyor block;

[0059] 16. Recycling pipeline;

[0060] 2. Aging and sorting components;

[0061] 21. Sorting box;

[0062] 22. Rotary guide; 221. Stepper motor; 222. Transmission gear; 223. Inner groove rotating frame; 224. Outer gear ring; 225. Rotating circular frame;

[0063] 226. Connecting frame; 2261. Top connecting frame; 2262. Bottom connecting frame; 227. Guide assembly; 2271. Sliding plate; 2272. Rotating shaft; 2273. Guide wheel; 2274. Elastic assembly;

[0064] 23. Rotary distributor;

[0065] 24. Arc-shaped guide; 241. Outer arc-shaped guide plate; 242. Inner arc-shaped guide plate;

[0066] 25. Tester; 251. Camera Identifier; 252. Aging Current Monitor; 253. Capacitance and Loss Angle Detector; 254. Equivalent Series Resistance Detector; 255. Flash Explosion and Withstand Voltage Detector; 256. Convex Bottom Detector; 257. Appearance Detector; 258. Recycling Pipeline. Detailed Implementation

[0067] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0068] Example

[0069] like Figures 1-16 As shown, a multi-channel type fully automatic aging test and sorting machine for aluminum electrolytic capacitors includes a feeding assembly 1, which is used to receive the capacitors to be tested and sort and transport them one by one.

[0070] The aging and sorting component 2 is connected to the feeding component 1 and is used to perform aging tests and sorting of capacitors.

[0071] The feeding assembly 1 includes a distributor 11, a feeder 12, a sorter 13, and a progressive conveyor 15. The distributor 11 distributes the capacitors to the feeder 12, and the feeder 12 conveys the capacitors to the sorter 13 in an orderly manner. The sorter 13 is equipped with a rotating assembly 132, a lifting assembly 133, a vision recognition device 1345, and an extraction end 136 with negative pressure adsorption function, which are used to transfer the capacitors from the feeder 12 to the progressive conveyor 15 and perform visual recognition on the capacitors. The progressive conveyor 15 delivers the capacitors to the feeding end of the aging sorting assembly 2.

[0072] The aging sorting assembly 2 includes a sorting box 21 and a rotary guide 22, a rotary distributor 23, an arc guide 24 and a tester 25 installed in the sorting box 21;

[0073] The rotary guide 22, rotary distributor 23, and arc guide 24 are arranged in multiple arrays to form a multi-pass parallel aging test channel. The rotary guide 22 is used to drive the capacitor to move step by step along the ring path. The arc guide 24 is arranged on the inner and outer sides of the rotary guide 22 to guide the movement trajectory of the capacitor. The rotary distributor 23 is used to distribute the capacitor between the rotary guide 22 and the arc guide 24. The tester 25 is arranged along the movement path of the capacitor to perform multi-parameter detection on the capacitor.

[0074] A multi-channel type fully automatic aging test and sorting machine for aluminum electrolytic capacitors mainly consists of two parts: a feeding component 1 and an aging sorting component 2. The feeding component 1 is responsible for receiving the capacitors to be tested from the previous process and transforming them from a stacked state to a separated and orderly arranged state for subsequent conveying. The feeding component 1 is equipped with a distributor 11, a feeder 12, a sorter 13, and a progressive conveyor 15. The inlet of the distributor 11 is connected to an external feeding device. After the capacitors enter the distributor 11, the distributor 11 alternately distributes the capacitors into the two conveying paths included in the feeder 12 according to a preset logic, thereby realizing material diversion. After receiving the capacitors falling from the distributor 11, the feeder 12 uses vibration to... The principle of motion is used to align and orient the capacitors, arranging them in a uniform posture with the leads facing up or down at the end of the feeding track 122. The sorter 13, located between the output of the feeder 12 and the input of the progressive conveyor 15, performs secondary posture detection and transfer of the capacitors. The sorter 13 integrates a rotating assembly 132, a lifting assembly 133, an extraction end 136 with negative pressure adsorption function, and a vision recognition device 1345. The rotating assembly 132 drives the extraction end 136 to reciprocate horizontally, while the lifting assembly 133 drives the extraction end 136 to move vertically up and down. When the feeder 12 delivers the capacitor to the designated gripping position... The lifting assembly 133 descends, and the extraction end 136 uses negative pressure to attract the top shell of the capacitor. It then rises and rotates above the advancing conveyor 15, completing one transfer operation. During this transfer, the vision recognition device 1345 simultaneously captures images of the capacitors at the other side's grabbing station. Image processing algorithms determine the polarity direction of the capacitor leads or any external defects. After receiving the capacitors released by the sorter 13, the advancing conveyor 15 pushes them one by one to the inlet of the aging sorting assembly 2 using a stepping motion. The aging sorting assembly 2 includes a closed sorting box 21, inside which are installed a rotary guide 22, a rotary distributor 23, and an arc-shaped guide 24. 4. The tester 25 and the rotary guide 22 serve as the power source to drive multiple clamps carrying capacitors to make intermittent stepping movements along the circular path. The arc-shaped guide plate is fixedly installed on the inner and outer sides of the rotary guide 22 to form a circular guide track, which restricts the movement trajectory of the clamps to prevent deviation. The rotary distributor 23 is connected to the air source at a specific position and controls the clamping and releasing of the capacitors between different workstations through pneumatic logic. The tester 25 is distributed at various angle positions on the circular path. When the capacitor steps past the tester 25, the tester 25 applies an electrical signal by contacting the capacitor pins through the probe to complete the comprehensive detection of multiple parameters such as aging, capacity, loss, and withstand voltage, and classifies and discharges the capacitors according to the test results.

[0075] The feeder 11 is composed of an inlet pipe 111 and two outlet pipes 112 connected to each other. A feeder plate 113 is rotatably installed at the connection of the two outlet pipes 112. A telescopic cylinder 114 is provided on one side of the feeder 11. A hinge shaft 115 is connected between the telescopic cylinder 114 and the outlet pipes 112.

[0076] The feeder 12 consists of two symmetrically arranged vibrating screen trays 121. The two vibrating screen trays 121 are respectively located at the bottom of the two discharge pipes 112. The output end of the vibrating screen tray 121 is equipped with a feeding track 122. The output end of the feeding track 122 is equipped with a telescopic shaft 123. The end of the telescopic shaft 123 is equipped with a separating extraction block 125.

[0077] The distributor 11 consists of a vertically arranged inlet pipe 111 and two branching outlet pipes 112 connected to each other. The connection between the inlet pipe 111 and the two outlet pipes 112 forms an inverted Y-shaped tee structure. Inside the converging cavity of this tee structure, a distributor plate 113 is rotatably mounted via a horizontal rotating shaft. The width of the distributor plate 113 is slightly smaller than the inner diameter of the pipe, and its length is sufficient to completely block the opening of one of the outlet pipes 112 when swinging. A telescopic cylinder 114 is fixedly mounted on the outer wall of the distributor 11 housing. The piston rod end of the telescopic cylinder 114 is movably connected to one end of a connecting rod via a hinge shaft 115. The other end of the connecting rod is fixedly connected to the outer extension of the rotating shaft of the material distribution plate 113. When the piston rod of the telescopic cylinder 114 extends, it pushes the connecting rod to drive the material distribution plate 113 to swing to the left. At this time, the left discharge pipe 112 is closed, and the capacitor slides down along the right discharge pipe 112 under the action of gravity. When the piston rod of the telescopic cylinder 114 retracts, the connecting rod pulls the material distribution plate 113 to swing to the right to close the right discharge pipe 112, and the capacitor falls into the left discharge pipe 112.

[0078] The feeder 12 consists of two identical vibrating screen trays 121 placed in a mirror image. The inlets of the two vibrating screen trays 121 are located directly below the outlets of the two discharge pipes 112. Each vibrating screen tray 121 contains an electromagnet and a set of inclined spring plates. When a pulse current is applied, the electromagnet generates an alternating magnetic field that attracts the tray base. Combined with the spring plate's elasticity, this causes the tray to produce a small, high-frequency torsional vibration along the spiral upward direction. The capacitor located inside the tray rises upward along the spiral track under the action of inertial force, and during this process, it is affected by the notches and stops set on the track. After screening, only capacitors with pin orientations that meet the requirements can be output through the feeding track 122. The end of the feeding track 122 is equipped with a telescopic shaft 123. The telescopic shaft 123 is driven by a pen-shaped cylinder. A separator extraction block 125 is installed at the end of the telescopic shaft 123 by a threaded fastening method. The front end of the separator extraction block 125 is machined with a slot that matches the outer diameter of the capacitor. When the telescopic shaft 123 extends, the separator extraction block 125 separates the first capacitor at the end of the feeding track 122 from the subsequent capacitors and pushes it to the waiting position of the sorter 13.

[0079] The sorter 13 also includes a telescopic lead screw 130 and a support frame 131, the support frame 131 being installed on one side of the feeder 12;

[0080] The rotating assembly 132 consists of a rotary motor 1321, a spline nut 1322, and a first lead screw nut 1323. The spline nut 1322 and the first lead screw nut 1323 are connected to each other. The rotary motor 1321 is installed inside the support frame 131. The output end of the rotary motor 1321 and the first lead screw nut 1323 are connected by a first transmission belt 1324.

[0081] The lifting assembly 133 consists of a lifting motor 1331 and a second lead screw nut 1332. The lifting motor 1331 is installed inside the support frame 131. The output end of the lifting motor 1331 and the second lead screw nut 1332 are connected by a second transmission belt 1333.

[0082] The telescopic lead screw 130 is threadedly connected to the first lead screw nut 1323 and the second lead screw nut 1332 respectively.

[0083] In addition to the aforementioned extraction end 136, the sorter 13 also includes a telescopic lead screw 130 and a portal frame support 131. The support frame 131 is formed by bolting together two side columns and a top crossbeam, and is installed horizontally above the output end of the feeder 12. The telescopic lead screw 130 is a long shaft with a trapezoidal thread machined on its outer surface, and is vertically inserted at the center of the support frame 131. The rotating assembly 132 is composed of a rotary motor 1321, a spline nut 1322, and a first lead screw nut 1323. The rotary motor 1321 is fixed to the top of the support frame 131 by bolts. Below the beam, a drive synchronous pulley is mounted on its output shaft. The outer circumference of the first lead screw nut 1323 is machined with a stepped shoulder, and it is rotatably mounted in a bearing seat at the top of the support frame 131 via a bearing, allowing the first lead screw nut 1323 to be axially fixed while rotating freely circumferentially. A driven synchronous pulley is also fixed to the upper end of the first lead screw nut 1323. The drive synchronous pulley and the driven synchronous pulley are connected by a first transmission belt 1324, which is a synchronous belt with teeth on its inner surface to ensure accurate transmission ratio and prevent slippage. The spline nut 1322... The hole is machined with a spline groove and is rigidly connected to the lower end face of the first lead screw nut 1323 by bolts. The lifting assembly 133 consists of a lifting motor 1331 and a second lead screw nut 1332. The lifting motor 1331 is also installed inside the support frame 131 and is located next to the rotary motor 1321. Its output shaft is connected to the pulley on the outer periphery of the second lead screw nut 1332 through the second transmission belt 1333. The second lead screw nut 1332 is rotatably mounted on the transverse partition in the middle of the support frame 131 through bearings. The rod of the telescopic lead screw 130 passes through both the first lead screw nut 1323 and the second lead screw nut 1322. The telescopic screw 130 has an internal threaded hole (1332) and spline teeth that mate with the spline nut 1322 are axially formed on its outer surface. When the rotary motor 1321 operates alone, it drives the first screw nut 1323 and the spline nut 1322 to rotate synchronously via the first transmission belt 1324. The spline engagement causes the telescopic screw 130 to rotate around its own axis, achieving horizontal angular swinging of the extraction end 136. When the lifting motor 1331 operates alone, it drives the second screw nut 1332 to rotate, using the principle of the screw thread pair to push the telescopic screw 130 to move up and down vertically. When the two motors operate in tandem, the combined spatial movement of the extraction end 136 can be achieved.

[0084] The sorter 13 also includes a limit recognition component 134, which consists of a lifting limit slider 1341 and a connecting frame 1343. The lifting limit slider 1341 is sleeved on the outer peripheral surface of the telescopic lead screw 130. A rotation damping block 1342 is movably sleeved on the outer peripheral surface of the lifting limit slider 1341. A connecting frame 1343 is fixedly sleeved on the outer peripheral surface of the rotation damping block 1342. An arc-shaped guide block 1344 is fixedly connected to the top of the connecting frame 1343. The arc-shaped guide block 1344 is slidably assembled inside the support frame 131. A visual recognizer 1345 is installed at the bottom of the connecting frame 1343. At least one illuminator 1346 is also provided on the visual recognizer 1345.

[0085] The sorter 13 includes a limit recognition component 134, which consists of a lifting limit slider 1341, a rotation damping block 1342, a connecting frame 1343, and an arc-shaped guide block 1344. The lifting limit slider 1341 is a sleeve-shaped part with a through hole machined in the center. The inner wall of the through hole is smooth. It is movably sleeved on the outer circular surface of the optical axis of the telescopic screw 130 located above the cross plate of the support frame 131 by clearance fit. A ring groove is machined on the outer circular surface of the lifting limit slider 1341. The rotation damping block 1342 has a complete ring structure, and its inner ring is engaged with the lifting limit slider. The annular groove of slider 1341 is filled with damping grease to achieve an interference fit, allowing the rotary damping block 1342 to rotate freely on the lifting limit slider 1341 while also providing a certain amount of rotational friction resistance. The connecting frame 1343 is an L-shaped sheet metal bending piece or machined metal plate, one end of which is fixed to the outer surface of the rotary damping block 1342 by screws. The other end of the connecting frame 1343 extends outward and bends downward. The visual recognition device 1345 is fixed to this bent-down end face by screws. On the top plane of the connecting frame 1343, a [missing information - likely a device name or component] is fixed by welding or screws. An arc-shaped guide block 1344 has a raised slider structure on its top that matches the arc-shaped guide groove on the lower surface of the support frame 131 crossbeam. When the lifting motor 1331 drives the telescopic screw 130 to move up and down, the lifting limit slider 1341 follows the optical axis section of the telescopic screw 130 to fall or rise under its own weight. However, since its inner wall is a smooth hole rather than a threaded hole, its axial movement depends only on the end face thrust and gravity of the shoulder on the telescopic screw 130, rather than the forced drive of the thread. When the rotary motor 1321 drives the telescopic screw 130 to rotate, due to the rotation damping block 1342 and the lifting limit slider 1344, the sliding limit slider 1344 moves up and down. There is rotational resistance between the lowering limit sliders 1341, and the arc-shaped guide block 1344 is stuck in the arc-shaped guide groove of the support frame 131, which restricts the large-scale rotation of the connecting frame 1343. Therefore, the vision recognition device 1345 will not rotate synchronously with the telescopic screw 130, but will be restricted to swing slowly or remain stationary within a specific arc-shaped trajectory. This allows the vision recognition device 1345 above to be relatively stably suspended directly above the capacitor to be recognized due to the damping hysteresis effect of the limiting component when the extraction end 136 is reciprocating at high speed below to grab the material, thus ensuring the clarity of the captured image and the accuracy of the detection.

[0086] A connecting rod 135 is fixedly connected to the bottom of the telescopic screw 130, and an extraction end 136 is installed at one end of the connecting rod 135.

[0087] The extraction end 136 is composed of a negative pressure pipe 1361 with inner and outer cavities. A first negative pressure pipe 1362 and a second negative pressure pipe 1363 are respectively provided on one side of the top of the negative pressure pipe 1361. The first negative pressure pipe 1362 and the second negative pressure pipe 1363 are respectively connected to the inner and outer cavities.

[0088] The bottom of the extraction end 136 is provided with an elastic connector 1364. The bottom of the elastic connector 1364 is provided with a negative pressure suction head 1365 and a covering airbag 1368. The negative pressure suction head 1365 and the covering airbag 1368 are respectively connected to the inner and outer cavities. The inner wall of the negative pressure suction head 1365 is provided with a number of equidistant internal adsorption cavities 1366. The bottom of the negative pressure suction head 1365 is provided with a suction cup ring 1367, and the suction cup ring 1367 is provided with annular equidistant grooves.

[0089] The bottom end of the telescopic screw 130 is fixedly connected to a laterally extending connecting rod 135 by a threaded locking mechanism. An installation hole is formed at the end of the connecting rod 135. The extraction end 136 is vertically fixed to the end of the connecting rod 135 by a locking screw. The core component of the extraction end 136 is a negative pressure pipe 1361 made of metal. The negative pressure pipe 1361 is internally divided into an inner cavity and an outer cavity that are not interconnected. Two pipe connector interfaces are machined on the side wall at the top of the negative pressure pipe 1361. One interface connects to the first negative pressure pipe 1362, and the other interface connects to the second negative pressure pipe 1363. The first negative pressure pipe 1362 and the inner... The cavity is connected, and the second negative pressure pipeline 1363 is connected to the outer cavity. The two pipelines are respectively connected to independent negative pressure generators controlled by solenoid valves. At the bottom end of the negative pressure pipeline 1361, an elastic connector 1364 is installed by threaded connection or clamp fastening. The elastic connector 1364 is made of silicone material and has a certain axial compression elasticity and radial deformation capacity. A negative pressure suction head 1365 is protruding from the center of the bottom end face of the elastic connector 1364. The central air channel of the negative pressure suction head 1365 is connected to the inner cavity of the extraction end 136. On the inner wall of the negative pressure suction head 1365, several annularly distributed... The built-in adsorption cavity 1366 is a semi-circular recess, which increases the contact area and adsorption force with the aluminum shell surface of the capacitor under negative pressure. A suction cup ring 1367 is located at the bottom of the negative pressure suction head 1365. The suction cup ring 1367 expands outward in a trumpet shape, and several radially distributed grooves are formed on its annular end face through laser cutting or die stamping. When the negative pressure suction head 1365 presses against the top of the capacitor, the suction cup ring 1367 undergoes elastic deformation to expel internal air. The groove structure can adapt to the uneven surface of the explosion-proof groove on the top of the capacitor, enhancing airtightness. At the outer ring of the elastic connector 1364, [the following is a description of a structure / structure]. The negative pressure suction head 1365 is equipped with an annular encapsulating airbag 1368. The inner cavity of the encapsulating airbag 1368 is connected to the outer cavity of the extraction end 136. When the first negative pressure tube 1362 is connected to the inner cavity to draw air, the negative pressure suction head 1365 tightly adheres to the top of the capacitor. At this time, if positive pressure gas is injected into the outer cavity through the second negative pressure tube 1363, the encapsulating airbag 1368 will rapidly expand radially and tighten the aluminum shell circumference of the capacitor inward, forming a double fixed mechanical and pneumatic composite clamping force. When releasing the capacitor, the positive pressure of the outer cavity is cut off first to cause the encapsulating airbag 1368 to contract, and then the negative pressure of the inner cavity is cut off to break the vacuum, so that the capacitor can be released smoothly.

[0090] A regulator 14 and a recycling pipeline 16 are also provided on the transmission path of the sorter 13;

[0091] The regulator 14 is composed of an adjustment frame 141. A cylinder telescopic assembly 142 is provided on one side of the adjustment frame 141. A rotating assembly 143 is provided at the output end of the cylinder telescopic assembly 142. A clamping assembly 144 is installed at the output end of the rotating assembly 143. Blowing heads 145 are provided on both the upper and lower sides of the clamping assembly 144. A recognition camera 146 is installed on the top of the adjustment frame 141.

[0092] The progressive conveyor 15 consists of a left and right sliding assembly 151 and a front and back sliding assembly 152. The front and back sliding assembly 152 is installed at the output end of the left and right sliding assembly 151. A push plate 153 is installed at the output end of the front and back sliding assembly 152. Several equidistantly distributed limiting conveyor blocks 154 are provided on the push plate 153.

[0093] The main body of the regulator 14 is an adjusting frame 141, which is positioned on the side of the advancing conveyor 15. A cylinder telescopic assembly 142 is vertically mounted on the side of the adjusting frame 141 facing the advancing conveyor 15. The cylinder telescopic assembly 142 consists of a dual-axis cylinder and a mounting base plate. A transition plate is fixed to the piston rod end of the dual-axis cylinder by screws. A rotating assembly 143 is fixedly mounted on the transition plate. The rotating assembly 143 contains a small stepper motor 221 and a set of planetary reduction gears. The rotor of component 21 is connected to the sun gear of the planetary reducer. After reduction and torque amplification, the rotational motion is output by the planetary carrier. A clamping assembly 144 is bolted to the output flange of the rotating component 143. The clamping assembly 144 is a parallel opening and closing pneumatic finger. V-shaped clamps made of polyurethane material are installed on the two jaws of the pneumatic finger. Two purge heads 145 are connected to the upper and lower sides of the clamping assembly 144 via universal joint tubes. The purge heads 145 are connected to a compressed air source via air pipes and are controlled by a solenoid valve. A recognition camera 146 is mounted on the top crossbeam of the frame 141. The lens of the recognition camera 146 is vertically downward and aimed at the clamping center area of ​​the clamping assembly 144. Two inclined downward-extending recovery pipes 16 are provided on one side of the advancing conveyor 15. The inlets of the recovery pipes 16 are funnel-shaped and widened, respectively, and are aimed at the release positions that the clamping assembly 144 can reach. When the capacitor released by the sorter 13 is sent to the regulator 14 station by the advancing conveyor 15, the advancing conveyor 15 stops, and the recognition camera 146 first performs a secondary scan on the capacitor. Positioning and polarity confirmation: If there is an angular deviation in the position of the capacitor, the rotating component 143 drives the clamping component 144 to rotate and correct the angle based on the feedback from the identification camera 146. If the identification camera 146 determines that the capacitor has an appearance defect or a defect that the sorter 13 fails to identify accurately, the sorter 13 moves the capacitor to the top of the funnel opening of the recycling pipeline 16 and releases it. The defective product slides down the recycling pipeline 16 to the external collection box. During this process, the upper and lower blowing heads 145 continuously spray ion wind to eliminate static electricity and blow away the tiny dust particles on the surface of the capacitor.

[0094] The rotary guide 22 consists of a stepper motor 221 and an inner groove rotating frame 223. The stepper motor 221 is installed inside the sorting box 21. A transmission gear 222 is installed at the output end of the stepper motor 221. An outer gear ring 224 is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame 223. The transmission gear 222 and the outer gear ring 224 mesh with each other. A rotating circular frame 225 is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame 223. Several circumferentially distributed connecting frames 226 are fixedly connected to the rotating circular frame 225.

[0095] The rotary guide 22 is installed at the center of the sorting box 21 and consists of a stepper motor 221, a transmission gear 222, an inner groove rotating frame 223, an outer gear ring 224, a rotating circular frame 225, and a connecting frame 226. The stepper motor 221 is fixedly mounted on the bottom inner wall of the sorting box 21 via an L-shaped motor mount. The stepper motor 221 receives pulse signals from the controller and rotates by a fixed step angle for each pulse received. The output axis of the stepper motor 221 extends upward and is tightly fitted with a drive transmission gear 222 via a key connection. At the center of the sorting box 21, an inner groove rotating frame 223 is rotatably mounted via a large crossed roller bearing. The inner groove rotating frame 223 is a cylindrical structure with an annular wire routing groove machined on its inner wall for accommodating wires. A shoulder is machined on the lower part of its outer circular surface. Above the shoulder, an outer gear ring 224 is fixedly fitted using a heat-fitting process. The module of the outer gear ring 224 is the same as that of the transmission gear 221. The modules of the two gears are the same, and the number of teeth of the outer gear ring 224 is much larger than that of the transmission gear 222, thus forming a gear transmission pair for first-stage reduction and torque increase. When the stepper motor 221 rotates, the transmission gear 222 drives the outer gear ring 224 to rotate, thereby driving the entire inner groove rotating frame 223 to rotate slowly around its vertical central axis. At the middle position of the outer circular surface of the inner groove rotating frame 223, a rotating circular frame 225 is fixed by bolts. Several threaded holes are evenly processed on the circumferential edge of the rotating circular frame 225. The connecting frame 226 is formed by laser cutting and bending of aluminum alloy plate. The root of each connecting frame 226 is fastened to the circumferential threaded hole of the rotating circular frame 225 by high-strength bolts, so that the connecting frames 226 are radially and evenly distributed on the periphery of the inner groove rotating frame 223. Through the intermittent motion control of the stepper motor 221, the connecting frame 226 can drive the capacitor clamp installed on it to move step by step along the circular track in the sorting box 21, thereby sending the capacitors to each test station in sequence.

[0096] The connecting frame 226 is composed of a top connecting frame 2261 and a bottom connecting frame 2262 connected by a long screw, and a guide component 227 is provided between the connecting frames 226;

[0097] The guide assembly 227 is composed of a sliding plate 2271, which is located between the top connecting frame 2261 and the bottom connecting frame 2262. An elastic component 2274 is connected between the sliding plate 2271 and the bottom connecting frame 2262. Rotating shafts 2272 are rotatably mounted on both sides of the sliding plate 2271. Guide wheels 2273 are movably sleeved on the outer circumferential surface of the rotating shafts 2272. The extraction end 136 is mounted on the sliding plate 2271. An air supply pipeline is connected between the extraction end 136 and the rotary distributor 23.

[0098] Each connecting frame 226 consists of a top connecting frame 2261 and a bottom connecting frame 2262, which are placed parallel to each other vertically. Each of the four corners of the top connecting frame 2261 and the bottom connecting frame 2262 has through holes. Four long screws pass through these through holes and, with the help of locking nuts, connect the top connecting frame 2261 and the bottom connecting frame 2262 into a rigid rectangular frame structure. A guide component 227 is provided in the space between the top connecting frame 2261 and the bottom connecting frame 2262. The guide component 227 includes a sliding plate 2271 made of a rectangular metal sheet. The sliding plate 2271 also has through holes at its four corners and is movably fitted onto four long screws, allowing the sliding plate 2271 to slide vertically up and down under guidance. An elastic component 2274 is provided between the lower surface of the sliding plate 2271 and the upper surface of the bottom connecting frame 2262. The elastic component 2274 is specifically a compression spring. The upper end of the spring abuts against the lower surface of the sliding plate 2271, and the lower end of the spring rests on the upper surface of the bottom connecting frame 2262. In its natural state, the spring force pushes the sliding plate 2271 upward. Screws are respectively installed on the left and right side walls of the sliding plate 2271. A bearing housing is fixed, and a rolling bearing is assembled inside the bearing housing. One end of the rotating shaft 2272 is interference-fitted with the inner ring of the bearing, and the other end of the rotating shaft 2272 extends outward, with a guide wheel 2273 movably fitted on its outer circumference through a clearance fit. The guide wheel 2273 is a rolling wheel covered with a polyurethane outer ring. The extraction end 136 is fixedly installed above the front of the sliding plate 2271 by a specially designed clamping seat. The structure of the extraction end 136 is the same as that of the extraction end 136 in the feeding assembly 1, which also includes inner and outer cavities and a negative pressure suction head 1365, but its connection The gas path is different. The first negative pressure pipeline 1362 and the second negative pressure pipeline 1363 at the top of the extraction end 136 are connected to the gas supply pipeline through quick connectors. The other end of the gas supply pipeline is connected to the output interface of the rotary distributor 23. The rotary distributor 23 is a multi-channel pneumatic slip ring device that is fixedly installed at the top center of the sorting box 21 and does not rotate with the inner tank rotating frame 223. It contains a stationary ring and a moving ring. The moving ring revolves with the inner tank rotating frame 223, and the stationary ring is connected to an external gas source, so as to continuously provide the positive and negative pressure gas required for adsorption and release to the extraction end 136 during the rotation.

[0099] The arc-shaped guide 24 consists of an outer arc-shaped guide plate 241 and an inner arc-shaped guide plate 242. The inner arc-shaped guide plate 242 and the outer arc-shaped guide plate 241 are fixedly connected inside the sorting box 21 in an inner and outer arrangement. Several arc-shaped guide grooves are provided on the outer arc-shaped guide plate 241 and the inner arc-shaped guide plate 242. The guide wheel 2273 is slidably assembled inside the arc-shaped guide groove.

[0100] The arc-shaped guide 24 consists of an outer arc-shaped guide plate 241 and an inner arc-shaped guide plate 242. Both are arc-shaped components made of wear-resistant steel plates through rolling and cutting. The inner arc-shaped guide plate 242 is close to the center of the rotary guide 22, and the outer arc-shaped guide plate 241 is located on the periphery of the connecting frame 226. The two are arranged in a concentric circle and are fixedly connected to the inner bottom plate of the sorting box 21 by a reinforcing rib plate welded to the back. On the sides of the inner arc-shaped guide plate 242 and the outer arc-shaped guide plate 241, i.e., on the inner wall of the annular channel between them, several arc-shaped guide grooves are machined, which are connected end to end in the circumferential direction and are evenly distributed. The cross-sectional shape of the arc-shaped guide groove is an arc-shaped groove, and the groove width is adapted to the outer diameter of the guide wheels 2273 on both sides of the connecting frame 226 to form a clearance fit. During the equipment assembly process, the guide wheels 2273 on both sides of the connecting frame 226 are respectively embedded In the arc-shaped guide grooves of the inner arc-shaped guide plate 242 and the outer arc-shaped guide plate 241, when the stepper motor 221 drives the inner groove rotating frame 223 to rotate, the connecting frame 226 revolves accordingly, and the guide wheel 2273 rolls forward in the arc-shaped guide groove. The arc-shaped guide groove is not a horizontal straight line in the vertical direction, but has an undulating curved profile designed at different angle positions according to process requirements. For example, at the test station, the curve of the arc-shaped guide groove is concave, and the spring pushes the sliding plate 2271 and the extraction end 136 to move downward, pressing the capacitor pins onto the probe of the tester 25. Through the mechanical limiting of the undulating grooves on the inner and outer arc-shaped guide plates 241, combined with the restoring force of the bottom elastic component 2274, the capacitor can revolve on the annular path while completing precise radial and axial position adjustments. There is no need to configure a lifting cylinder separately for each station, which simplifies the air circuit wiring and improves the reliability of the operation.

[0101] The tester 25 consists of several camera detectors 251, aging current monitors 252, capacitance and loss angle detectors 253, equivalent series resistance detectors 254, flash explosion and withstand voltage detectors 255, convex bottom detectors 256, appearance detectors 257, and two recycling pipes 258.

[0102] Several aging current monitors 252, several capacitance and loss angle detectors 253, several equivalent series resistance detectors 254, several flash explosion and withstand voltage detectors 255, several convex bottom detectors 256, several appearance detectors 257, and two recycling pipes 258 are equidistantly distributed between the outer arc-shaped guide plate 241 and the inner arc-shaped guide plate 242.

[0103] Camera identifiers 251 are respectively installed on one side of several aging current monitors 252, several capacitance and loss angle detectors 253, several equivalent series resistance detectors 254, several flash explosion and withstand voltage detectors 255, several convex bottom detectors 256, several appearance detectors 257, and two recycling pipes 258.

[0104] The tester 25 consists of multiple functional modules arranged sequentially along a circular path and fixedly installed within the circular area between the outer arc-shaped guide plate 241 and the inner arc-shaped guide plate 242. At the entrance of the sorting box 21, a camera identifier 251 is first installed to perform initial position verification before the capacitor enters the aging channel. Next, as the capacitor enters the aging zone, an aging current monitor 252 is installed along the path. Internally, it contains multiple sets of DC regulated power supplies and current sampling resistors. When the capacitor leads contact the positive and negative electrode clips of the aging current monitor 252, the external power supply applies the rated aging voltage to the capacitor, and simultaneously samples the current. The voltage signal across the resistor is amplified by an operational amplifier and transmitted to the main controller to monitor the leakage current change curve of the capacitor in real time during the aging process. After a specified aging time, the capacitor steps to the capacitance and loss angle detector 253 station. The capacitance and loss angle detector 253 station integrates an LCR digital bridge measurement unit, which applies a specific frequency AC excitation signal to the capacitor through a four-terminal test method and simultaneously measures the phase difference between voltage and current to calculate the actual capacitance value and loss tangent value of the capacitor. Subsequently, the capacitor enters the equivalent series resistance detector 254 station, where the equivalent series resistance detector... The detector at position 254 uses the high-frequency AC impedance method to accurately measure the equivalent series resistance value after eliminating the influence of lead inductance. The flashover and withstand voltage detector 255 is located at the rear and contains a programmable high-voltage DC power supply and a fast discharge circuit. The detector applies a gradually increasing DC voltage to the capacitor until it reaches a specific multiple of the rated withstand voltage value, while simultaneously monitoring for sudden changes in current to determine if flashover breakdown has occurred. The convex bottom detector 256 uses a laser displacement sensor. The sensor emits a thin laser beam to illuminate the aluminum shell plane at the bottom of the capacitor, and calculates the minute convex deformation of the shell bottom by receiving changes in the position of the reflected light spot. (Appearance detector...) 257 includes a high-resolution industrial camera and a ring-shaped shadowless light source to capture images of the printing quality of the capacitor's outer sheath and the damage status of the heat shrink tubing from multiple angles. Finally, at the end of the ring path, two recycling pipes 258 are set up. At the entrance of the recycling pipe 258, a pneumatic flap door controlled by a solenoid valve is installed. The main controller integrates the data from all the detectors. If the capacitor is determined to be good, it is sent to the good product outlet; if it is determined to be defective, the flap door at the corresponding position is triggered to open according to the defect type, the extraction end 136 releases the capacitor, and the capacitor falls into the corresponding recycling pipe 258 to achieve automatic classification and collection.

[0105] Working principle: The capacitor under test first enters the distributor 11 in the feeding assembly 1 from the external feeding device. The capacitor falls into the inverted Y-shaped three-way junction cavity formed by two discharge pipes 112 through the feed pipe 111. At this time, the telescopic cylinder 114 installed on one side of the distributor 11 drives the distribution plate 113 to swing alternately in the cavity through the hinge shaft 115. When the piston rod of the telescopic cylinder 114 extends, the distribution plate 113 closes the left discharge pipe 112, causing the capacitor to slide down along the right discharge pipe 112. When the piston rod retracts, the distribution plate 113 closes the right discharge pipe 112, causing the capacitor to fall into the left discharge pipe 112. In this way, the capacitor is alternately distributed to the two conveying paths of the feeder 12, which is composed of two mirror-symmetrically arranged vibrating screen trays 121.

[0106] The capacitors falling into the vibrating screen tray 121 are lifted up along the spiral track by the high-frequency torsional vibration generated by the electromagnet and spring plate and the pin orientation is uniformly screened. The capacitors that meet the posture requirements are output to the end via the feeding track 122. At this time, the telescopic shaft 123 driven by the pen-shaped cylinder extends and drives the separator extraction block 125 installed at its end to separate the first capacitor from the subsequent capacitors and push them to the waiting position of the sorter 13.

[0107] Subsequently, the rotating component 132 and the lifting component 133 in the sorter 13 work together. Specifically, the rotating motor 1321 drives the first lead screw nut 1323 and the spline nut 1322 rigidly connected to it to rotate synchronously via the first transmission belt 1324. The spline engagement drives the telescopic lead screw 130 to rotate around its own axis. At the same time, the lifting motor 1331 drives the second lead screw nut 1332 to rotate via the second transmission belt 1333. The threaded joint of the lead screw pushes the telescopic lead screw 130 to move up and down in the vertical direction, thereby driving the extraction end 136, which is installed at the bottom of the telescopic lead screw 130 via the connecting rod 135, to achieve spatial compound motion. After the extraction end 136 moves to above the end of the feeding track 122, The first negative pressure pipeline 1362 conducts air into the inner cavity, causing the suction cup ring 1367 at the bottom of the negative pressure suction head 1365 to press the top shell of the capacitor and enhance the adsorption and holding force with the help of the built-in adsorption cavity 1366. At the same time, the second negative pressure pipeline 1363 fills the outer cavity with positive pressure gas, causing the covering airbag 1368 to expand radially and clamp the circumference of the aluminum shell of the capacitor to form a double clamp. Then, the lifting component 133 drives the telescopic screw 130 to rise, and the rotating component 132 drives the telescopic screw 130 to rotate 180 degrees in the opposite direction to move the capacitor to the top of the advance conveyor 15. The positive pressure of the outer cavity is cut off, causing the covering airbag 1368 to contract and the negative pressure of the inner cavity to be cut off, breaking the vacuum. The capacitor is then smoothly released onto the advance conveyor 15.

[0108] During this transfer process, the lifting limit slider 1341, which is sleeved on the optical axis section of the telescopic screw 130, moves axially with the telescopic screw 130 under the action of the shoulder thrust and gravity. The rotating damping block 1342, which is movably sleeved on the outer periphery of the lifting limit slider 1341 and forms a rotational friction fit with it through damping grease, is limited by the top arc-shaped guide block 1344 and the arc-shaped guide groove of the support frame 131. This prevents the vision recognition device 1345, which is fixed at the end of the connecting frame 1343, from rotating at high speed synchronously with the telescopic screw 130. Instead, it is restricted to move slowly within a specific arc-shaped trajectory and is stably suspended above the capacitor to be grasped on the other side. The vision recognition device 1345 takes an image of the capacitor under the supplementary lighting of the illuminator 1346 and judges the pin polarity direction and appearance defects through the image processing algorithm.

[0109] After the capacitor falls into the progressive conveyor 15, the left and right sliding components 151 and the front and rear sliding components 152 drive the push plate 153 and its limiting conveyor block 154 to push the capacitor along the transmission path towards the feed port of the aging sorting component 2 in a step-by-step manner. A regulator 14 and a recovery pipeline 16 are installed on the transmission path. When the capacitor is delivered to the regulator 14 station, the progressive conveyor 15 pauses. The identification camera 146 installed on the top of the regulator 141 performs secondary positioning and polarity confirmation of the capacitor. If there is an angular deviation, a cylinder will... The telescopic component 142 pushes the rotating component 143 and the clamping component 144 forward. After the pneumatic fingers of the clamping component 144 clamp the capacitor, the rotating component 143 drives the clamping component 144 to rotate and correct the angle according to the feedback of the identification camera 146. If the identification camera 146 determines that the capacitor has appearance defects or defects that the sorter 13 cannot identify, the capacitor is transferred to the top of the funnel opening of the recycling pipeline 16 and released so that it slides down the pipeline to the external collection box. During this process, the upper and lower blowing heads 145 continuously spray ion wind to eliminate static electricity and blow away dust.

[0110] After adjustment and screening, the good capacitors are fed into the feed port of the sorting box 21 of the aging sorting component 2 by the progressive conveyor 15. At this time, the rotary guide 22 installed in the center of the sorting box 21 starts to move. After receiving the pulse signal, the stepper motor 221 drives the outer gear ring 224 fixed on the outer periphery of the inner groove rotating frame 223 to rotate through the transmission gear 222. This drives the inner groove rotating frame 223 and the multiple connecting frames 226 that are radially and uniformly fixed on it by the rotating circular frame 225 to perform intermittent stepping motion along the ring path.

[0111] Each connecting frame 226 is a rigid rectangular frame formed by connecting the top connecting frame 2261 and the bottom connecting frame 2262 through a long screw. The sliding plate 2271 in the guide component 227 inside the frame abuts against the bottom connecting frame 2262 through the elastic component 2274. The guide wheels 2273 installed on both sides of the sliding plate 2271 through the rotating shaft 2272 are respectively embedded in the outer ring arc-shaped guide plate 241 and the inner ring arc-shaped guide plate 242 which are concentrically arranged inside the sorting box 21 and are continuously and evenly distributed in the arc-shaped guide grooves. When the connecting frame 226 revolves with the inner groove rotating frame 223, the guide wheels 2273 roll along the arc-shaped guide groove. The undulating curved surface contour of the arc-shaped guide groove, together with the restoring force of the elastic component 2274, drives the sliding plate 2271 and the extraction end 136 installed on it to complete the lifting and lowering action during the revolution, pressing the capacitor pins against the probes of each test station or releasing them from the station.

[0112] The first negative pressure pipeline 1362 and the second negative pressure pipeline 1363 at the top of the extraction end 136 are connected to the rotary distributor 23 fixed at the top center of the sorting box 21 via the air supply pipeline. The rotary distributor 23, as a multi-channel pneumatic slip ring device, continuously provides the positive and negative pressure gases required for adsorption and release to the extraction end 136 during the rotational motion, realizing the clamping and release distribution of the capacitor between the rotary guide 22 and the arc guide 24.

[0113] The capacitor proceeds sequentially along a circular path through a tester 25 composed of multiple functional modules. First, a camera recognition unit 251, located at the entrance between the outer and inner arc-shaped guide plates 241 and 242, verifies the capacitor's initial position. Then, the capacitor enters the aging zone, where an aging current monitor 252 applies the rated aging voltage to the capacitor via positive and negative electrode clips and monitors the leakage current change curve in real time via a current sampling resistor and operational amplifier. After aging, the capacitor proceeds to the capacitance and loss angle detector 253. The internal LCR digital bridge measurement unit applies an AC excitation signal to the test method through four terminals and calculates the actual capacitance value and loss angle. The capacitor is then fed to the equivalent series resistance detector 254, where the equivalent series resistance is accurately measured using the high-frequency AC impedance method. Next, the capacitor steps to the flashover and withstand voltage detector 255, where a programmable high-voltage DC power supply applies a gradually increasing DC voltage to the capacitor and monitors current surges to determine if flashover breakdown has occurred. Subsequently, the convex bottom detector 256 uses a laser displacement sensor to emit a laser beam to illuminate the aluminum shell plane at the bottom of the capacitor and calculates the deformation of the convex bottom by measuring the change in the position of the reflected light spot. Finally, the appearance detector 257 uses a high-resolution industrial camera and a ring-shaped shadowless light source to photograph the printing quality of the capacitor's outer sheath and the damage to the heat-shrink tubing from multiple angles.

[0114] Finally, when the capacitor reaches the end of the loop path, the main controller determines the product grade by integrating all the detection data. If it is a good product, it is sent to the good product outlet. If it is a defective product, the solenoid valve at the inlet of the corresponding recycling pipe 258 is triggered to open the pneumatic flap door according to the defect type. The extraction end 136 breaks the vacuum and releases the capacitor, causing it to fall into the recycling pipe 258 to achieve automatic classification and collection.

[0115] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors, characterized in that, include: The feeding assembly (1) is used to receive the capacitors to be tested and feed them one by one. An aging and sorting component (2) is connected to the feeding component (1) and is used to perform aging tests and sorting on capacitors. The feeding assembly (1) includes a distributor (11), a feeder (12), a sorter (13), and a progressive conveyor (15). The distributor (11) distributes the capacitors to the feeder (12), and the feeder (12) conveys the capacitors to the sorter (13) in an orderly manner. The sorter (13) is equipped with a rotating assembly (132), a lifting assembly (133), a vision recognition device (1345), and an extraction end (136) with negative pressure adsorption function, which are used to transfer the capacitors from the feeder (12) to the progressive conveyor (15) and perform visual recognition on the capacitors. The progressive conveyor (15) delivers the capacitors to the feeding end of the aging sorting assembly (2). The aging sorting assembly (2) includes a sorting box (21) and a rotary guide (22), a rotary distributor (23), an arc guide (24) and a tester (25) installed in the sorting box (21). The rotary guide (22), rotary distributor (23), and arc guide (24) are arranged in multiple arrays to form a multi-channel parallel aging test channel; the rotary guide (22) is used to drive the capacitor to move step by step along the ring path; the arc guide (24) is arranged on the inner and outer sides of the rotary guide (22) to guide the movement trajectory of the capacitor; the rotary distributor (23) is used to distribute the capacitor between the rotary guide (22) and the arc guide (24); and the tester (25) is arranged along the capacitor movement path to perform multi-parameter detection on the capacitor.

2. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 1, characterized in that, The feeder (11) is composed of an inlet pipe (111) and two outlet pipes (112) connected to each other. A feeder plate (113) is rotatably installed at the connection of the two outlet pipes (112). A telescopic cylinder (114) is provided on one side of the feeder (11). A hinge shaft (115) is connected between the telescopic cylinder (114) and the outlet pipes (112). The feeder (12) consists of two symmetrically arranged vibrating screen trays (121). The two vibrating screen trays (121) are respectively located at the bottom of the two discharge pipes (112). The output end of the vibrating screen tray (121) is equipped with a feeding track (122). The output end of the feeding track (122) is equipped with a telescopic shaft (123). The end of the telescopic shaft (123) is equipped with a separating extraction block (125).

3. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 1, characterized in that, The sorter (13) also includes a telescopic lead screw (130) and a support frame (131), the support frame (131) being installed on one side of the feeder (12); The rotating assembly (132) consists of a rotary motor (1321), a spline nut (1322), and a first lead screw nut (1323). The spline nut (1322) and the first lead screw nut (1323) are connected to each other. The rotary motor (1321) is installed inside the support frame (131). The output end of the rotary motor (1321) and the first lead screw nut (1323) are connected by a first transmission belt (1324). The lifting assembly (133) consists of a lifting motor (1331) and a second lead screw nut (1332). The lifting motor (1331) is installed inside the support frame (131). A second transmission belt (1333) is connected between the output end of the lifting motor (1331) and the second lead screw nut (1332). The telescopic lead screw (130) is threadedly connected to the first lead screw nut (1323) and the second lead screw nut (1332) respectively.

4. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 3, characterized in that, The sorter (13) further includes a limit recognition component (134), which consists of a lifting limit slider (1341) and a connecting frame (1343). The lifting limit slider (1341) is sleeved on the outer circumferential surface of the telescopic screw (130). A rotating damping block (1342) is movably sleeved on the outer circumferential surface of the lifting limit slider (1341). A connecting frame (1343) is fixedly sleeved on the outer circumferential surface of the rotating damping block (1342). An arc-shaped guide block (1344) is fixedly connected to the top of the connecting frame (1343). The arc-shaped guide block (1344) is slidably assembled inside the support frame (131). The visual recognition device (1345) is installed at the bottom of the connecting frame (1343). At least one illuminator (1346) is also provided on the visual recognition device (1345).

5. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 3, characterized in that, The bottom of the telescopic lead screw (130) is fixedly connected to a connecting rod (135), and the extraction end (136) is installed at one end of the connecting rod (135). The extraction end (136) is composed of a negative pressure pipe (1361) with inner and outer cavities. A first negative pressure pipe (1362) and a second negative pressure pipe (1363) are respectively provided on one side of the top of the negative pressure pipe (1361). The first negative pressure pipe (1362) and the second negative pressure pipe (1363) are respectively connected to the inner and outer cavities. The bottom of the extraction end (136) is provided with an elastic connector (1364). The bottom of the elastic connector (1364) is provided with a negative pressure suction head (1365) and a covering airbag (1368). The negative pressure suction head (1365) and the covering airbag (1368) are respectively connected to the inner and outer cavities. The inner wall of the negative pressure suction head (1365) is provided with a number of equidistant internal adsorption cavities (1366). The bottom of the negative pressure suction head (1365) is provided with a suction cup ring (1367). The suction cup ring (1367) is provided with annular equidistant grooves.

6. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 1, characterized in that, A regulator (14) and a recycling pipeline (16) are also provided on the transmission path of the sorter (13). The regulator (14) is composed of an adjustment frame (141). A cylinder telescopic assembly (142) is provided on one side of the adjustment frame (141). A rotating assembly (143) is provided at the output end of the cylinder telescopic assembly (142). A clamping assembly (144) is installed at the output end of the rotating assembly (143). Blowing heads (145) are provided on both the upper and lower sides of the clamping assembly (144). A recognition camera (146) is installed on the top of the adjustment frame (141). The progressive conveyor (15) is composed of a left and right sliding assembly (151) and a front and back sliding assembly (152). The front and back sliding assembly (152) is installed at the output end of the left and right sliding assembly (151). A push plate (153) is installed at the output end of the front and back sliding assembly (152). A plurality of equidistantly distributed limiting conveyor blocks (154) are provided on the push plate (153).

7. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 1, characterized in that, The rotary guide (22) consists of a stepper motor (221) and an inner groove rotating frame (223). The stepper motor (221) is installed inside the sorting box (21). A transmission gear (222) is installed at the output end of the stepper motor (221). An external gear ring (224) is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame (223). The transmission gear (222) meshes with the external gear ring (224). A rotating circular frame (225) is fixedly sleeved on the outer circumferential surface of the inner groove rotating frame (223). Several circumferentially distributed connecting frames (226) are fixedly connected to the rotating circular frame (225).

8. The fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 7, characterized in that, The connecting frame (226) is composed of a top connecting frame (2261) and a bottom connecting frame (2262) connected by a long screw, and a guide component (227) is provided between the connecting frames (226). The guide assembly (227) is composed of a sliding plate (2271), which is disposed between the top connecting frame (2261) and the bottom connecting frame (2262). An elastic component (2274) is connected between the sliding plate (2271) and the bottom connecting frame (2262). Rotating shafts (2272) are rotatably mounted on both sides of the sliding plate (2271). Guide wheels (2273) are movably sleeved on the outer circumferential surface of the rotating shafts (2272). The extraction end (136) is mounted on the sliding plate (2271). An air supply pipeline is connected between the extraction end (136) and the rotary distributor (23).

9. A fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 8, characterized in that, The arc-shaped guide (24) is composed of an outer arc-shaped guide plate (241) and an inner arc-shaped guide plate (242). The inner arc-shaped guide plate (242) and the outer arc-shaped guide plate (241) are fixedly connected inside the sorting box (21) in an inner and outer sleeve configuration. The outer arc-shaped guide plate (241) and the inner arc-shaped guide plate (242) are provided with a number of continuous circumferentially distributed arc-shaped guide grooves. The guide wheel (2273) is slidably assembled inside the arc-shaped guide groove.

10. A fully automatic aging test and sorting machine for multi-channel aluminum electrolytic capacitors according to claim 9, characterized in that, The tester (25) consists of several camera detectors (251), aging current monitors (252), capacitance and loss angle detectors (253), equivalent series resistance detectors (254), flash explosion and withstand voltage detectors (255), convex bottom detectors (256), appearance detectors (257) and two recycling pipes (258). A plurality of the aging current monitors (252), a plurality of the capacitance and loss angle detectors (253), a plurality of the equivalent series resistance detectors (254), a plurality of the flashover and withstand voltage detectors (255), a plurality of the convex bottom detectors (256), a plurality of the appearance detectors (257), and two recycling pipes (258) are equidistantly distributed between the outer arc-shaped guide plate (241) and the inner arc-shaped guide plate (242); The camera identifier (251) is respectively disposed on one side of several aging current monitors (252), several capacitance and loss angle detectors (253), several equivalent series resistance detectors (254), several flash and withstand voltage detectors (255), several convex bottom detectors (256), several appearance detectors (257), and two recycling pipes (258).

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