An automatic detection device for capacitor core
By designing an automatic capacitor core detection device, which utilizes multiple marking mechanisms and optical recognition sensors, the device achieves automated detection and separation of cores, solving the safety hazards and material mixing problems of traditional devices, and improving detection efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI SAIFU CAPACITOR CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional capacitor core testing devices pose safety hazards and equipment damage risks during the testing process, and are prone to core deformation and material mixing during sorting, making traceability and analysis difficult.
An automatic capacitor core detection device was designed, which includes loading and unloading, lifting, rotating, probe and marking mechanisms inside the housing. The detection results are read in real time by optical recognition sensors, the power supply to defective products is automatically cut off, and the independent unloading conveyor belt is used for diversion. Multiple marking mechanisms are set up for marking and recognition to avoid overlap and mixing of materials.
It improves the safety and efficiency of testing, avoids probe damage and production line contamination, enables rapid traceability analysis, solves the problem of material mixing, and reduces production costs.
Smart Images
Figure CN122425003A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of capacitor production and testing equipment technology, specifically to an automatic capacitor core testing device. Background Technology
[0002] Metallized film capacitors are indispensable basic components in power electronic devices, with their core component being the metallized film core, which is formed by winding a metallized film. After winding, gold plating, thermal polymerization, and cleaning, the core undergoes visual inspection, followed by electrical performance testing (capacitance, loss, etc.) and high-voltage withstand testing. Only those that pass the tests can proceed to the next assembly process. The accuracy and efficiency of the testing process directly affect the finished product quality and production cost of the capacitor core.
[0003] Traditional testing equipment uses a fixed sequence of workstations when testing cores. Regardless of whether the results of previous tests (appearance and electrical tests) are qualified, all cores are subjected to subsequent high-voltage withstand voltage tests. When cores have defects such as short circuits or insulation problems, the high-voltage test can cause the cores to break down and explode. This not only pollutes the production line environment and poses safety hazards, but also damages the power supply, probes, or components on the circuit board, significantly reducing the equipment's lifespan.
[0004] Furthermore, after the existing testing is completed, when sorting by mechanical baffles or air blowing, the fragile capacitor core is easily deformed by impact; and there are no permanent marks after sorting, which easily leads to the mixing of good, substandard and defective products, and it is also difficult to trace the source of problems with the core.
[0005] In view of this, we propose an automatic detection device for capacitor cores. Summary of the Invention
[0006] The purpose of this invention is to provide an automatic capacitor core detection device that solves the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: An automatic capacitor core detection device includes: case; The loading and unloading mechanism is located inside one side of the housing, and the loading and unloading mechanism includes a loading component, a robotic arm, and a unloading conveyor belt; The lifting mechanism is installed at the top inside the housing; A rotating mechanism is installed at the bottom inside the housing. The rotating mechanism is used to clamp and fix the core and drive the core to rotate. The probe mechanism includes a probe assembly and an upper probe. The probe assembly is arranged around the rotating mechanism, and the upper probe is mounted on the lifting mechanism. The probe mechanism is used to connect the two ends of the core to electricity. A marking mechanism is installed on the lifting mechanism, and the marking mechanism is used to mark the core. Along the rotation direction of the rotating mechanism, the housing is sequentially provided with a loading and unloading mechanism, an appearance inspection component, a marking component, an electrical inspection component, a marking component, a pressure resistance inspection component, a marking component, and an antistatic component.
[0008] Preferably, the lifting mechanism includes a lifting plate, which is connected to the inner top of the housing via a cylinder. Multiple lifting mounting plates are installed on the lifting plate, and the multiple lifting mounting plates are distributed at intervals along the rotation path of the rotating mechanism. The lifting mechanism also includes a pressure rod, and the pressure rod, upper probe, and marking mechanism are alternately installed on different lifting mounting plates.
[0009] Preferably, the marking mechanism includes a lifting rod, which is mounted through a lifting mounting plate and can move up and down along the lifting mounting plate. A protective seat is installed at the bottom end of the lifting rod, and an electromagnet is installed at the top end of the lifting rod. A marking rod is also provided through the lifting rod and can slide up and down along the lifting rod. A permanent magnet is installed on the marking rod, and the permanent magnet and the electromagnet are magnetically connected.
[0010] Preferably, a first limiting seat and a second limiting seat are symmetrically installed on the lifting mounting plate, the marking rod can slide up and down along the inside of the second limiting seat, and the lifting rod can slide up and down along the inside of the first limiting seat.
[0011] Preferably, a rotating rod is installed through the protective base, and a protective plate is installed on the rotating rod via a torsion spring. The protective plate can rotate around the rotating rod. A marking head is installed at the bottom end of the marking rod, and the radial distance between the marking head and the center of the bottom of the marking rod in each group of marking mechanisms is different.
[0012] Preferably, the probe assembly includes a sliding rail, which is installed at the bottom of the housing. A sliding rod is connected to the sliding rail via a cylinder. The sliding rod can slide horizontally along the sliding rail. A probe holder is installed at the top of the sliding rod via a cylinder. A lower probe is mounted on the probe holder. An upper probe is mounted on a lifting mounting plate. An optical recognition sensor is also installed on the lifting mounting plate at the position of the upper probe.
[0013] Preferably, the rotating mechanism includes a rotating seat, which is installed at the bottom of the inner part of the housing. A rotating disk is mounted on the rotating seat, and the rotating disk can rotate along the axis of the rotating seat. Multiple rotating mounting rods are mounted on the rotating disk, and the multiple rotating mounting rods are distributed in a circular array along the center of the rotating disk. A fixed base is mounted on the rotating mounting rod, and a mechanical gripper is assembled on the fixed base.
[0014] Preferably, the robotic arm includes a sliding base, which is installed at the top of the housing. A sliding block is installed on the sliding base, and the sliding block can slide horizontally along the sliding base. A lifting cylinder is installed at the bottom of the sliding block. The output shaft of the lifting cylinder is connected to a clamping cylinder. Two clamping seats are symmetrically connected to the two sides of the clamping cylinder via conveyor shafts. An optical recognition sensor is also installed at the bottom of the clamping cylinder.
[0015] Preferably, the optical recognition sensor is an RGB color sensor or a grayscale sensor.
[0016] Preferably, the static eliminator includes a probe assembly and a pressure bar for eliminating static electricity in the core; both the electrical testing assembly and the withstand voltage testing assembly include probe mechanisms, and the marking assembly includes multiple sets of marking mechanisms.
[0017] By employing the above technical solution, the present invention provides an automatic capacitor core detection device that has at least the following beneficial effects: (1) By setting up a loading and unloading mechanism, a lifting mechanism, a rotating mechanism, a probe mechanism and a marking mechanism in the housing, the present invention can realize the automated detection of cores. The detection results are marked by multiple independent marking mechanisms. The previous marking results are read in real time by an optical recognition sensor. If a defective product mark is detected, the subsequent electrical detection and withstand voltage detection stations will automatically cut off the probe power supply and skip the action, avoiding probe damage and production line contamination caused by high voltage breakdown of defective products, effectively improving the safety of detection and saving costs.
[0018] (2) By setting up a marking mechanism in conjunction with a loading and unloading mechanism and an optical recognition sensor, the distance between the marking head of each marking mechanism and the center of the core end face is different, thus avoiding the overlap of multiple detection items. The detection results of the core are read in real time by the optical recognition sensor, and the independent unloading conveyor belt automatically diverts the flow, thus completely solving the problem of mixed materials. The cause of defects can be quickly traced by recognizing the markings.
[0019] (3) The present invention features a marking mechanism consisting of an electromagnet, a permanent magnet, and a protective plate. When not marking, the torsion spring drives the protective plate to seal the marking head, preventing ink from curing and leaking. During marking, the polarity of the electromagnet is switched to control the extension and retraction of the marking rod to complete the marking, resulting in clear and stable marking. Marking can be quickly switched to match the timing of the detection. Attached Figure Description
[0020] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a schematic diagram of the internal structure of the shell in this invention; Figure 3 This is a schematic diagram of the feeding assembly and robotic arm installation in this invention; Figure 4 This is a schematic diagram of the installation structure of the feeding conveyor belt and the robotic arm in this invention; Figure 5 This is a schematic diagram of the rotating mechanism and probe assembly in this invention; Figure 6 This is a schematic diagram of the rotating mounting rod, fixed base, mechanical gripper and probe assembly structure in this invention; Figure 7 This is a schematic diagram of the lifting mechanism and its connecting parts in this invention; Figure 8 This is a schematic diagram of the overall structure of the lifting mounting plate and marking mechanism in this invention; Figure 9 In this invention Figure 8 A schematic diagram of the cross-sectional structure; Figure 10 This is a schematic diagram of the disassembled structure of the rotating rod and protective plate in this invention; Figure 11 This is a schematic diagram of the structure of the marker rod and marker rod head at different installation positions in this invention.
[0021] In the picture: 100. Shell; 200. Loading / unloading mechanism; 210. Loading assembly; 211. Loading conveyor belt; 212. Limiting rod; 220. Robotic arm; 221. Clamping seat; 222. Clamping cylinder; 223. Lifting cylinder; 224. Sliding block; 225. Sliding seat; 230. Unloading conveyor belt; 300. Lifting mechanism; 301. Lifting plate; 302. Lifting mounting plate; 303. Pressure bar; 400. Rotating mechanism; 401. Rotating seat; 402. Rotating disk; 403. Rotating mounting rod; 404. Fixed base; 405. Mechanical gripper; 500. Probe mechanism; 510. Probe assembly; 511. Sliding rail; 512. Sliding rod; 513. Probe holder; 514. Lower probe; 520. Upper probe; 600. Marking mechanism; 601. Lifting rod; 602. Limiting seat one; 603. Protective seat; 604. Electromagnet; 605. Permanent magnet; 606. Limiting seat two; 607. Marking rod; 6071. Marking head; 608. Rotating rod; 609. Protective plate. Detailed Implementation
[0022] 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 embodiments of the present invention, and not all embodiments. Based on the 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.
[0023] Please see Figures 1-11 An automatic capacitor core detection device includes a housing 100, with transparent acrylic plates arranged around the perimeter of the housing 100, which can serve both as a protective measure and facilitate observation of the interior of the housing 100.
[0024] Please see Figures 1-4 The housing 100 has an loading and unloading mechanism 200 on one side inside. The loading and unloading mechanism 200 includes a loading component 210, a robotic arm 220 and an unloading conveyor belt 230.
[0025] Please see Figure 2 and Figure 3 The feeding assembly 210 includes a feeding conveyor belt 211, with limit rods 212 installed on both sides of the frame. The feeding conveyor belt 211 is used to transport cores. The two limit rods 212 clamp the cores by contacting their surfaces, thus limiting their movement and preventing them from tipping over during transport, thereby ensuring stable core transport. In addition, a contact sensor (not shown in the figure) is installed on the inner wall of one end of the frame of the feeding conveyor belt 211. When a core contacts the contact sensor, a switch is triggered, stopping the feeding conveyor belt 211 and allowing the core to wait for feeding. When the core separates from the contact sensor, the switch is triggered again, resuming the feeding conveyor belt 211 and moving the next core to contact the contact sensor, triggering the switch and stopping the feeding conveyor belt 211. Repeating these steps allows for stable individual core feeding.
[0026] Please see Figure 4 There are three feeding conveyor belts 230, which are arranged side by side and are used to transport the defective, superior and unqualified products of the core respectively.
[0027] Please see Figure 3 and Figure 4 The robotic arm 220 includes a sliding seat 225, which is installed at the top of the housing 100. A sliding block 224 is installed on the sliding seat 225, and the sliding block 224 can slide horizontally along the sliding seat 225. A lifting cylinder 223 is installed at the bottom of the sliding block 224. The output shaft of the lifting cylinder 223 is connected to a clamping cylinder 222. Two clamping seats 221 are symmetrically connected to the two sides of the clamping cylinder 222 via conveying shafts. An optical recognition sensor (not shown in the figure) is also installed at the bottom of the clamping cylinder 222.
[0028] Specifically, when the clamping cylinder 222 is working, it can drive the two clamping seats 221 to move closer or further apart, realizing the clamping or releasing action of the core; when the lifting cylinder 223 is working, it can drive the clamping cylinder 222 and the clamping seats 221 to rise or fall, thereby driving the core to complete the rising or falling action through the clamping seats 221; when the sliding block 224 moves along the sliding seat 225, it can simultaneously drive the lifting cylinder 223, the clamping cylinder 222 and the clamping seats 221 to move, so that the clamping seats 221 drive the core to complete the translational action. By performing clamping, lifting, translational, lowering and releasing operations on the core in sequence, the loading and unloading process of the core can be completed.
[0029] It is worth noting that the feeding of cores relies on the cooperation of the feeding component 210 and the robot 220, while the unloading of cores relies on the cooperation of the unloading conveyor belt 230 and the robot 220.
[0030] Please see Figure 1 , Figure 2 and Figure 5 A rotating mechanism 400 is installed at the bottom of the inner part of the housing 100. The rotating mechanism 400 is used to clamp and fix the core and drive the core to rotate, thereby facilitating various tests on the core.
[0031] Please see Figure 1 and Figure 5 The rotating mechanism 400 includes a rotating base 401, which is fixedly installed at the bottom of the housing 100. A rotating disk 402 is rotatably mounted on the rotating base 401. The power source for the rotating disk 402 is preferably a stepper motor, which drives the rotating disk 402 to rotate intermittently along the rotating base 401, with a fixed rotation angle each time. Multiple rotating mounting rods 403 are mounted on the rotating disk 402, arranged in a circular array around the center of the rotating disk 402, with the included angle between adjacent rotating mounting rods 403 matching the intermittent rotation angle of the rotating disk 402. This mounting method ensures that when the rotating disk 402 rotates, each rotating mounting rod 403 can precisely move to the position of the previous rotating mounting rod 403, maintaining a stable relative position between the rotating disk 402 and the rotating mounting rods 403, thus facilitating the inspection operation.
[0032] Please see Figure 6 A fixed base 404 is mounted on the rotating mounting rod 403, and a mechanical gripper 405 is fitted on the fixed base 404. The mechanical gripper 405, in conjunction with the fixed base 404, can quickly clamp and fix the core, preventing changes in the core's position during testing and rotation from affecting the testing process.
[0033] It is worth noting that the rotating mechanism 400 and the loading / unloading mechanism 200 work together to complete the entire core loading / unloading operation. During loading, the core is stably conveyed by the loading conveyor belt 211 and the limit rod 212. A contact sensor keeps a single core at a fixed position on the loading conveyor belt 211, waiting to be loaded. Then, the robot arm 220 performs the operations of clamping, moving up, moving horizontally, moving down, and releasing the core in sequence, transferring the core to an empty fixed base 404. The mechanical gripper 405 then clamps the core to fix it, thus completing the core loading operation. During unloading, the core that has completed the inspection is rotated and conveyed to the unloading station. After the mechanical gripper 405 is released, the robot arm 220 performs the operations of clamping, moving up, moving horizontally, moving down, and releasing the core in sequence, so that the core to be unloaded falls onto the unloading conveyor belt 230, completing the unloading operation. After the unloading is completed, the fixed base 404 becomes empty. Rotating the mounting rod 403 will rotate the empty fixed base 404 to the loading station. Repeating the above steps will enable automated loading and unloading of cores.
[0034] Please see Figure 1 , Figure 2 and Figure 7 A lifting mechanism 300 is installed at the top interior of the housing 100, and is positioned directly above the rotating mechanism 400. The lifting mechanism 300 includes a lifting plate 301, which is connected to the top interior of the housing 100 via a cylinder. The cylinder's operation allows the lifting plate 301 to move rapidly up and down within the housing 100. Multiple lifting mounting plates 302 are mounted on the lifting plate 301. The number of lifting mounting plates 302 is two fewer than the number of rotating mounting rods 403, and each lifting mounting plate 302 is aligned vertically with the rotating mounting rod 403. As the lifting mounting plates 302 move up and down with the lifting plate 301, they can move closer to or further away from the rotating mounting rod 403, facilitating contact between the structures mounted on the lifting mounting plates 302 and the core components on the rotating mounting rod 403, thus facilitating detection and marking. In addition, the two missing lifting mounting plates 302 are located on the motion path plane of the robot 220, which can avoid interfering with the operation of the robot 220, thereby improving the stability of the robot 220 when loading and unloading the core.
[0035] Please see Figure 5 and Figure 6 An automatic capacitor core testing device further includes a probe mechanism 500. The probe mechanism 500 includes a probe assembly 510 and an upper probe 520. The probe assembly 510 is arranged around the rotating mechanism 400, and the upper probe 520 is mounted on the lifting mechanism 300. The probe mechanism 500 is used to connect the two ends of the core to electricity, thereby applying voltage to the core and enabling the detection of capacitance deviation, loss tangent, and insulation resistance of the core.
[0036] Please see Figure 6 The probe assembly 510 includes a sliding rail 511, which is installed at the bottom of the housing 100. A sliding rod 512 is connected to the sliding rail 511 via a cylinder. The sliding rod 512 can slide horizontally along the sliding rail 511. A probe seat 513 is provided at the top of the sliding rod 512. The sliding rod 512 and the probe seat 513 are connected by a cylinder, and the output shaft of the cylinder is fixedly connected to the probe seat 513. The cylinder can drive the probe seat 513 to move up and down. A lower probe 514 is mounted on the probe seat 513. It should also be noted that a through slot is provided on the fixed base 404 for the lower probe 514 to be inserted.
[0037] Specifically, the operation of the cylinder can drive the sliding rod 512 to move along the sliding track 511. The displacement of the sliding rod 512 causes the probe seat 513 and the lower probe 514 to move synchronously, thereby causing the lower probe 514 to insert into or move away from the fixed base 404. After the lower probe 514 is inserted into the fixed base 404, the cylinder on the sliding rod 512 extends, causing the probe seat 513 and the lower probe 514 to move upward, so that the lower probe 514 contacts the bottom end of the core.
[0038] Please see Figures 8-11 A marking mechanism 600 is installed on a portion of the lifting mounting plate 302. The marking mechanism 600 is used to mark the core after inspection. The marking mechanism 600 includes a lifting rod 601, which is installed through the lifting mounting plate 302 and can move up and down along the lifting mounting plate 302. When the lifting mounting plate 302 descends, it will drive the lifting rod 601 to descend synchronously. The lifting rod 601 descends and contacts the end face of the core. The core supports the lifting rod 601, so that the lifting rod 601 can move up and down internally along the lifting mounting plate 302. A protective seat 603 is installed at the bottom of the lifting rod 601, and an electromagnet 604 is installed at the top of the lifting rod 601. A marking rod 607 is also provided on the lifting rod 601. The marking rod 607 extends vertically through the lifting rod 601 and can slide up and down along the lifting rod 601. A permanent magnet 605 is installed on the marking rod 607.
[0039] Please see Figure 9Limiting seat 1 602 and limiting seat 2 606 are symmetrically installed on the lifting mounting plate 302. The marking rod 607 can slide up and down along the inside of limiting seat 2 606, and the lifting rod 601 can slide up and down along the inside of limiting seat 1 602. In addition, the lifting rod 601, the protective seat 603, and the electromagnet 604 form an "I"-shaped structure, which makes the lifting rod 601 subject to the blocking and limiting of limiting seat 1 602 and lifting mounting plate 302 when it moves up and down, thus preventing the lifting rod 601 from detaching. The cross section between the marker rod 607 and the permanent magnet 605 forms a cross shape. When the marker rod 607 and the permanent magnet 605 move up and down, the permanent magnet 605 will be blocked and limited by the lifting mounting plate 302 and the second limiting seat 606. The limiting effect of the second limiting seat 606 can limit the displacement distance of the permanent magnet 605 when the electromagnet 604 and the permanent magnet 605 generate repulsive force due to the same polarity.
[0040] Specifically, by changing the direction of the current flowing through the electromagnet 604, the magnetic polarity of the electromagnet 604 facing the permanent magnet 605 can be adjusted: when the polarities are the same, the electromagnet 604 and the permanent magnet 605 generate a repulsive force, pushing the permanent magnet 605 away from the electromagnet 604, and causing the marking rod 607 to move away synchronously. At this time, the marking rod 607 will not extend out of the protective seat 603. Therefore, when the lifting plate 301 moves down and drives the marking mechanism 600 down, the marking rod 607 will not mark the core. When the polarities are opposite, the electromagnet 604 and the permanent magnet 605 generate an attractive force, causing the permanent magnet 605 to approach and contact the electromagnet 604. The displacement of the permanent magnet 605 drives the marking rod 607 to move synchronously, causing it to extend out of the protective seat 603. When the lifting plate 301 moves down and drives the marking mechanism 600 down, the marking rod 607 can mark the core.
[0041] Please see Figure 10 A rotating rod 608 is also provided on the protective base 603. The rotating rod 608 passes through the protective base 603 in a horizontal direction, and a protective plate 609 is connected to the rotating rod 608 by a torsion spring. The protective plate 609 can rotate around the rotating rod 608. The rotating rod 608 and the protective base 603 are fixed by threads and nuts on the rotating rod 608. The rotating rod 608 can be disassembled by quickly removing the nut by rotating it. Under the action of the torsion spring, one side of the protective plate 609 contacts the bottom end of the through groove inside the lifting rod 601. When the marking rod 607 is located inside the lifting rod 601, the protective plate 609 can isolate the inner and outer spaces of the lifting rod 601. On the one hand, it prevents the marking rod 607 from contacting the outside air, which would cause the ink to solidify and affect the marking effect; on the other hand, it prevents ink leakage from the marking rod 607 from interfering with the marking effect. At the same time, when the marking rod 607 moves down, it can exert downward pressure on the protective plate 609, causing the protective plate 609 to rotate along the rotating rod 608, without affecting the normal marking operation of the marking rod 607.
[0042] Please see Figure 10 A marking head 6071 is installed at the bottom of the marking rod 607, and the distance between the marking head 6071 and the center of the bottom of the marking rod 607 in each marking mechanism 600 is different. The marking head 6071 can perform marking operations on the core. Since the distance between the marking head 6071 and the center of the bottom of the marking rod 607 in each marking mechanism 600 is different, the distance between the color marked by each marking head 6071 and the center of the end face of the core is different. This can avoid the mutual interference of multiple marks and quickly determine the detection problem corresponding to the core mark.
[0043] Please see Figure 1 and Figure 11 , Figure 5 The rotation direction marked by the arrow in the rotating mechanism 400 is the rotation direction of the rotating mechanism 400. Along the rotation direction of the rotating mechanism 400, the housing 100 is sequentially provided with the loading and unloading mechanism 200, appearance inspection component, marking component, electrical inspection component, marking component, pressure resistance inspection component, marking component and static elimination component.
[0044] The appearance inspection component includes multiple industrial cameras (not shown in the figure), a lifting mounting plate 302, and a pressure rod 303. The pressure rod 303 is slidably mounted on the lifting mounting plate 302 and can move up and down along the lifting mounting plate 302. When the rotating mechanism 400 drives the core to rotate to the position of the appearance inspection component, the lifting plate 301 operates, causing the lifting mounting plate 302 and the pressure rod 303 to move synchronously, thereby allowing the pressure rod 303 to press and fix the upper end of the core. With the support of the fixed base 404 for the lower end of the core, the core is fixed as a whole. Then, the mechanical grippers 405 open, so that the sides of the core are unobstructed. Finally, the industrial cameras take pictures of the core, enabling the inspection of the core's appearance and dimensions.
[0045] Both the electrical testing component and the withstand voltage testing component include a probe mechanism 500. The upper probe 520 is mounted on the lifting mounting plate 302. When the lifting plate 301 descends, the upper probe 520 descends synchronously with it, contacting the top of the core. When the probe mechanism 500 operates, the cylinder drives the sliding rod 512 to move along the sliding track 511. This movement of the sliding rod 512 causes the probe seat 513 and the lower probe 514 to move synchronously, allowing the lower probe 514 to insert into or move away from the fixed base 404. After the lower probe 514 inserts into the fixed base 404, the cylinder on the sliding rod 512 moves the probe seat 513 and the lower probe 514 upwards, causing the lower probe 514 to contact the bottom of the core. By having the upper probe 520 and lower probe 514 contact the upper and lower ends of the core respectively, and then applying voltage to the core through the upper probe 520 and lower probe 514, electrical testing and withstand voltage testing can be achieved.
[0046] Each testing component has two marking mechanisms 600 located within its marking assembly on two adjacent lifting mounting plates 302. The marking heads 6071 of the two marking mechanisms 600 are different colors. The marking mechanism 600 is used to mark the tested structure after testing. Qualified products are not marked, unqualified products are marked in red, and defective products are marked in yellow.
[0047] Specifically, based on the detection results of the detection components, the PLC feeds back to the electromagnet 604. If the result is qualified, the electromagnets 604 in both marking mechanisms 600 maintain the same pole as the permanent magnet 605, so that the marking rod 607 is located inside the lifting rod 601, and the core will not be marked when the lifting mounting plate 302 descends. If the result is unqualified or defective, it will trigger a change in the current of the electromagnet 604 in one marking mechanism 600, causing the polarity of the electromagnet 604 to reverse. The electromagnet 604 and the permanent magnet 605 have opposite polarities, generating magnetic attraction. The electromagnet 604 and the permanent magnet 605 are in contact, and the displacement of the permanent magnet 605 drives the marking rod 607 to extend out of the protective seat 603. Thus, when the lifting mounting plate 302 descends, it will drive the marking rod 607 to contact the top of the core, thereby marking the top of the core.
[0048] Optical recognition sensors are installed on the lifting mounting plate 302 at the position of the upper probe 520 and at the bottom of the clamping cylinder 222. The optical recognition sensors are RGB color sensors or grayscale sensors, which are used to identify the color of the core end face, thereby enabling the identification of the marks made on the core by the marking mechanism 600. When the optical recognition sensor located at the upper probe 520 on the lifting mounting plate 302 identifies the end face of the core, if no red is detected, the test continues; if red is detected, or if a defective product is detected, the upper probe 520 and lower probe 514 are not energized for detection to avoid safety hazards during electrical testing and save costs; when the optical recognition sensor located at the bottom of the clamping cylinder 222 is working, if no mark is detected, it is a qualified product; if only a yellow mark (defective product) is detected, it is a defective product; if a red mark (defective product) is detected, it is a defective product; based on the detection results, the displacement distance of the sliding seat 225 is controlled by the PLC feedback, and qualified, defective, and defective products are conveyed away by different unloading conveyor belts 230.
[0049] The static eliminator includes a probe assembly 510 and a pressure rod 303. After the inspection and marking processes are completed, the probe assembly 510 brings the lower probe 514 into contact with the bottom of the core; at the same time, the lifting plate 301 descends, causing the pressure rod 303 to shift, and the pressure rod 303 presses down and contacts the top of the core, ensuring that the bottom of the core is in close contact with the lower probe 514, and finally the static electricity in the core is discharged through the lower probe 514.
[0050] An automatic capacitor core detection device, the working principle of which is as follows: Feeding: After the metallized film is wound, sprayed with the base, and thermally polymerized, the core is obtained after the dust layer is removed manually. The core is conveyed into the feeding conveyor belt 211. The feeding component 210 and the robot 220 work together to clamp, move up, move horizontally, move down and release the core in sequence. The core on the feeding conveyor belt 211 can be transferred to the fixed base 404 and clamped by the mechanical gripper 405 to realize the feeding operation.
[0051] Appearance Inspection: The motor drives the rotating disk 402 to rotate, which in turn drives the rotating mounting rod 403 to rotate. The rotation of the rotating mounting rod 403 causes the core to rotate synchronously. When the core rotates to the position of the appearance inspection component, the lifting plate 301 operates, causing the lifting mounting plate 302 and the pressure rod 303 to move synchronously, so that the pressure rod 303 can press and fix the upper end of the core. With the support of the fixed base 404 for the lower end of the core, the core is fixed as a whole. Then, the mechanical grippers 405 open, so that the sides of the core are unobstructed. Finally, the core is photographed by an industrial camera, which can realize the inspection of the appearance and dimensions of the core.
[0052] Marking: After the inspection is completed, the lifting plate 301 rises, the rotating plate 402 rotates, and the inspected core rotates to the marking mechanism 600 position. The rotating plate 402 stops, and the lifting plate 301 descends, causing the marking mechanism 600 to descend. According to the appearance inspection results, if the inspection is qualified, the marking mechanism 600 will not perform the marking operation; if it is a defective product, the marking mechanism 600 will mark it in yellow; if it is an unqualified product, it will be marked in red.
[0053] Electrical Testing: After marking, the lifting plate 301 rises, the rotating disk 402 rotates, driving the core to the position of the electrical testing component. The rotating disk 402 stops, and the lifting plate 301 descends, causing the upper probe 520 to descend synchronously. The upper probe 520 contacts the upper end of the core, and the probe assembly 510 operates, driving the lower probe 514 to contact the lower end of the core. The optical recognition sensor located at the position of the upper probe 520 on the lifting mounting plate 302 identifies the end face of the core. If it is qualified or defective, testing begins. The rated voltage is applied to the core through the lower probe 514 and the upper probe 520 to detect the core's capacity deviation and loss tangent. If it is unqualified, testing stops.
[0054] Marking: Repeat the marking operation described above, controlling the marking mechanism 600 to perform the marking operation based on the results of the electrical test. If no electrical test is performed, no marking will be performed.
[0055] Withstand voltage test: After marking, the lifting plate 301 rises, the rotating disk 402 rotates, driving the core to the position of the withstand voltage test component. The rotating disk 402 stops, and the lifting plate 301 descends. The electrical test operation is repeated, the difference being that the rated voltage applied through the lower probe 514 and the upper probe 520 is different.
[0056] Mark: Repeat the marking operation above.
[0057] Unloading: After marking, the lifting plate 301 rises, the rotating disk 402 rotates, driving the core to the position of the loading / unloading mechanism 200. The rotating disk 402 stops, and the lifting plate 301 descends. Since there is no lifting mounting plate 302 at the position of the loading / unloading mechanism 200, the descent of the lifting plate 301 will not affect the operation of the robot arm 220. The robot arm 220 operates by clamping, moving up, moving horizontally, moving down, and releasing the core, conveying the core to the unloading conveyor belt 230 for unloading. It should be noted that when the clamping cylinder 222 descends, the optical recognition sensor at the bottom of the clamping cylinder 222 detects the end face of the core. If no mark is detected, it is a qualified product; if only a yellow mark (defective product) is detected, it is a defective product; if a red mark (unqualified product) is detected, it is an unqualified product. Based on the detection results, the translation distance of the sliding seat 225 is controlled by the PLC feedback. Qualified products, unqualified products and defective products are conveyed away by different feeding conveyor belts 230, realizing the diversion of the core.
[0058] By repeating the above operations, semi-automatic detection of the heart can be achieved, and the detection results can be automatically marked, and the heart can be diverted according to the marking results.
[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An automatic capacitor core detection device, characterized in that, include: Casing (100); The loading and unloading mechanism (200) is located inside one side of the housing (100). The loading and unloading mechanism (200) includes a loading assembly (210), a robot (220), and an unloading conveyor belt (230). A lifting mechanism (300) is installed at the top interior of the housing (100); A rotating mechanism (400) is installed at the bottom inside of the housing (100). The rotating mechanism (400) is used to clamp and fix the core and drive the core to rotate. The probe mechanism (500) includes a probe assembly (510) and an upper probe (520). The probe assembly (510) is arranged around the rotating mechanism (400), and the upper probe (520) is mounted on the lifting mechanism (300). The probe mechanism (500) is used to connect the two ends of the core to electricity. A marking mechanism (600) is installed on the lifting mechanism (300), and the marking mechanism (600) is used to mark the core. Along the rotation direction of the rotating mechanism (400), the housing (100) is provided with a loading and unloading mechanism (200), an appearance inspection component, a marking component, an electrical inspection component, a marking component, a pressure resistance inspection component, a marking component, and an antistatic component in sequence.
2. The automatic capacitor core detection device according to claim 1, characterized in that, The lifting mechanism (300) includes a lifting plate (301), which is connected to the inner top of the housing (100) via a cylinder. Multiple lifting mounting plates (302) are installed on the lifting plate (301), and the multiple lifting mounting plates (302) are distributed at intervals along the rotation path of the rotating mechanism (400). The lifting mechanism (300) also includes a pressure rod (303), which, the pressure rod (303), the upper probe (520), and the marking mechanism (600) are alternately installed on different lifting mounting plates (302).
3. The automatic capacitor core detection device according to claim 2, characterized in that, The marking mechanism (600) includes a lifting rod (601), which is installed through the lifting mounting plate (302). The lifting rod (601) can move up and down along the lifting mounting plate (302). A protective seat (603) is installed at the bottom end of the lifting rod (601), and an electromagnet (604) is installed at the top end of the lifting rod (601). A marking rod (607) is also installed through the lifting rod (601). The marking rod (607) can slide up and down along the lifting rod (601). A permanent magnet (605) is installed on the marking rod (607), and the permanent magnet (605) and the electromagnet (604) are magnetically connected.
4. The automatic capacitor core detection device according to claim 3, characterized in that, The lifting mounting plate (302) is symmetrically equipped with a first limiting seat (602) and a second limiting seat (606). The marking rod (607) can slide up and down along the inside of the second limiting seat (606), and the lifting rod (601) can slide up and down along the inside of the first limiting seat (602).
5. The automatic capacitor core detection device according to claim 3, characterized in that, A rotating rod (608) is installed through the protective base (603). A protective plate (609) is installed on the rotating rod (608) via a torsion spring. The protective plate (609) can rotate around the rotating rod (608). A marking head (6071) is installed at the bottom of the marking rod (607). The radial distance between the marking head (6071) and the bottom center of the marking rod (607) in each group of marking mechanisms (600) is different.
6. The automatic capacitor core detection device according to claim 2, characterized in that, The probe assembly (510) includes a sliding rail (511), which is installed at the bottom of the housing (100). A sliding rod (512) is connected inside the sliding rail (511) via a cylinder. The sliding rod (512) can slide horizontally along the sliding rail (511). A probe holder (513) is installed at the top of the sliding rod (512) via a cylinder. A lower probe (514) is mounted on the probe holder (513). An upper probe (520) is mounted on a lifting mounting plate (302). An optical recognition sensor is also installed on the lifting mounting plate (302) at the position of the upper probe (520).
7. The automatic capacitor core detection device according to claim 1, characterized in that, The rotating mechanism (400) includes a rotating seat (401), which is installed at the bottom of the inner part of the housing (100). A rotating disk (402) is installed on the rotating seat (401). The rotating disk (402) can rotate along the axis of the rotating seat (401). A plurality of rotating mounting rods (403) are installed on the rotating disk (402). The plurality of rotating mounting rods (403) are arranged in a circular array along the center of the rotating disk (402). A fixed base (404) is installed on the rotating mounting rod (403). A mechanical gripper (405) is assembled on the fixed base (404).
8. The automatic capacitor core detection device according to claim 1, characterized in that, The robotic arm (220) includes a sliding seat (225), which is installed at the top inside the housing (100). A sliding block (224) is installed on the sliding seat (225). The sliding block (224) can slide horizontally along the sliding seat (225). A lifting cylinder (223) is installed at the bottom of the sliding block (224). The output shaft of the lifting cylinder (223) is connected to a clamping cylinder (222). Two clamping seats (221) are symmetrically connected to the two sides of the clamping cylinder (222). An optical recognition sensor is also installed at the bottom of the clamping cylinder (222).
9. An automatic capacitor core detection device according to claim 6 or 8, characterized in that, The optical recognition sensor is an RGB color sensor or a grayscale sensor.
10. The automatic capacitor core detection device according to claim 1, characterized in that, The static eliminator includes a probe assembly (510) and a pressure bar (303) for eliminating static electricity in the core; both the electrical testing assembly and the withstand voltage testing assembly include a probe mechanism (500), and the marking assembly includes multiple marking mechanisms (600).