Intelligent conveying full-automatic precise angle cutting machine for capacitor pins

Abstract

The invention discloses a capacitor pin intelligent conveying full-automatic precise angle cutting machine, and belongs to the technical field of electronic element automatic processing equipment. Through cooperative operation of core components such as a main mounting base, an auxiliary mounting base, a first vibration feeder, a transfer clamping jaw, a pin separating guide frame and a reset spring, the automatic processing of electronic elements is realized; the full-process automation of the capacitor from conveying, cleaning, double-station capacity detection, precise pin cutting, ink printing, ultraviolet curing, 120-180-degree stepped pin separation, capacitance detection to visual sorting is realized. Wherein a second reset spring ensures rapid reset of the detection seat, synchronous control of the transfer clamping jaw and the liftable rotary workbench realizes seamless connection of procedures, finally high-precision pins are produced, pin angle consistency, pin cutting length precision and production efficiency are remarkably improved, manual missing detection is thoroughly eliminated through closed-loop quality control, and production efficiency is improved. And the problems of efficiency, precision and quality control of capacitor pin processing are systematically solved.

Description

Technical Field

[0001] This invention belongs to the technical field of automated processing equipment for electronic components, and specifically relates to precision processing equipment for capacitor leads. Background Technology

[0002] As a core component of electronic devices, the precision of capacitor pin machining directly affects product performance. Traditional manufacturing processes suffer from the following drawbacks: 1. High dependence on manual labor: Processes such as lead cutting, capacity testing, and ink printing require manual operation in each step, resulting in low efficiency (approximately 3,000 pieces per day). According to industry statistics, labor costs account for more than 35% of production costs.

[0003] 2. Insufficient precision control: The pinout angles rely on manual visual adjustment, with an angle deviation of ±15°, resulting in a soldering defect rate exceeding 8%. An error of ±0.5mm in the cut length can easily cause short circuits or poor soldering.

[0004] 3. Poor process coordination: Semi-automatic equipment can only perform a single function (such as pinning or printing), requires manual transfer between processes, and the surface of capacitors is easily scratched. The ink printing and drying processes are separated, and the ink comes into contact with the tooling before it has cured, resulting in a blurring rate of over 15%.

[0005] 4. Difficulty in quality traceability: Defective products require manual sorting, with a missed inspection rate exceeding 5%, and it is impossible to link them to specific failed processes.

[0006] Although some fully automated corner-cutting machines have attempted to integrate some functions, they still have three major drawbacks: The vibratory feeder's feeding and processing modules are independent, and the pins are prone to jamming (failure rate > 10 times / shift); the capacity detection and pin cutting are not linked, and defective products cannot be removed in real time; the pin splitting mechanism only supports a single angle (90° or 180°), which cannot adapt to multi-specification production.

[0007] Therefore, there is an urgent need to develop a fully automated device that integrates intelligent conveying, precision detection, and multi-angle lead splitting to solve the problems of accuracy, efficiency, and coordination. Summary of the Invention

[0008] 1. Technical problem to be solved: To address the problems existing in the prior art, the purpose of this invention is to provide a fully automatic precision angle-cutting machine for intelligent conveying of capacitor leads, thereby automating the entire lead processing process and solving the problems of poor angle consistency, low lead cutting accuracy, and manual omissions.

[0009] 2. Technical Solution: To solve the above problems, the present invention adopts the following technical solution.

[0010] A fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads includes a base system: a first vibrating feeder is mounted on a main mounting base, and a feed hopper is provided above its feed end; a laterally extending secondary mounting base is fixedly connected to the conveying frame of the first vibrating feeder via a connecting bracket; The corner-cutting detection unit consists of two sets of clamp mounting seats symmetrically mounted on the auxiliary mounting base, with a Y-axis sliding carrier plate on top. Along the X-axis, the carrier plate is sequentially equipped with a feeding clamp, a leg-aligning clamp, a front test clamp, a steering clamp, a rear test clamp, a discharge clamp, a leg-cutting cutter, and a discharge clamp. A transverse slide is fixed to the rear side of the carrier plate, on which a transfer mounting seat that reciprocates in the X-axis is mounted. Multiple sets of transfer grippers are located on the front side of the transfer mounting seat, and a rear cylinder drives the transfer grippers to perform Y-axis clamping motion. Ink printing unit: The printing support frame is fixed above the detection and corner cutting unit, and the ink container is installed on its side; the ink dispensing mechanism and the stamping mechanism are installed on the transfer mounting base; Drying unit: The rotary drying tray is set on the same plane as the first vibrating feeder conveyor frame, and pin positioning holes are evenly distributed on its edge. The side mounting bracket is equipped with ultraviolet lamps that cover the positioning holes. Turntable system: The liftable and rotating worktable is located above the auxiliary mounting base, with 12 sets of clamping mechanisms evenly distributed around its circumference, and a material pushing actuator is provided on the side; Lead processing unit: The lead straightening mechanism, lead flattening mechanism, base assembly mechanism, 120° lead splitting mechanism, 180° lead splitting mechanism, lead cutting mechanism and capacitance detection mechanism are arranged sequentially below the rotating worktable. Material supply: The first vibrating feeder conveys the capacitor body, and the second vibrating feeder is located on the right side of the auxiliary mounting base, with its conveying end connected to the base assembly mechanism.

[0011] Further improvements include: a waste collection system: a hinged sealing door panel on the front side of the auxiliary mounting base, a through hole in the left sealing door panel to embed a first collection container, and a through hole in the right sealing door panel to embed a second collection container; the discharge clamp and the cutting tool outlet are connected to the first collection container; Cleaning unit: The vertical column is fixed to the left side of the auxiliary mounting base, and the horizontal adjusting rod is sleeved on the outside of the vertical column; the telescopic arm is vertically fixed to the side end of the adjusting rod, and the bottom end of the telescopic arm is equipped with a drive motor and a cleaning brush covering the material conveying path.

[0012] A further improvement is that the ink-dipping mechanism includes: an ink-dipping bracket fixed to the transfer mounting base, a swing arm hinged to its front side, and a first return spring provided between the swing arm and the ink-dipping bracket; a guide wheel is installed on the rear side of the top of the ink-dipping bracket, a connecting rod bracket is fixed to the front side of the bottom, and an ink-dipping brush immersed in an ink container is installed at the bottom end of the connecting rod bracket. The stamp mechanism includes: a stamp bracket fixed to the transfer mounting base, with a multi-layer linkage arm installed at its front end; two guide rods passing through the multi-layer linkage arm, with the stamp head fixed at the bottom end and the top plate fixed at the top end; and a limiting sleeve sleeved at the rear end of the top plate.

[0013] Further improvements include: a printing drive mechanism: a drive mounting base is fixed to a secondary mounting base, on which a transmission base is mounted; the output shaft of the transmission base is fixed to the first drive arm and the second drive arm; a pressure plate is mounted at the end of the first drive arm and located directly above the guide wheel; a limiting frame is mounted at the end of the second drive arm and sleeved on the outside of the limiting sleeve; two push rods are respectively hinged to the first drive arm, the second drive arm and the vertical cylinder.

[0014] A further improvement is that the pushing actuator includes: The pusher bracket is fixed to the auxiliary mounting base, and a sliding platform is installed on its side end; The sliding frame is slidably installed on the sliding platform, with a pull block at the upper end and rollers hinged to the side end; The main drive rod passes through the sliding platform, with a U-shaped clamp and roller fixed at its rear end, and a driven rod hinged to its front end via a connecting sleeve; the bottom end of the driven rod is connected to a telescopic cylinder.

[0015] A further improvement is that the clamping mechanism includes: The rotating base is fixed to the edge of the rotating worktable, and its outer end is fixed to the lower housing; a limiting post is provided at the center of the bottom of the lower housing, and the top is fixed to the upper housing. Two symmetrical first guide holes are opened at the bottom of the upper shell, and elastic clamping plates are installed inside them; a compression spring is provided between the elastic clamping plates and the inner wall of the shell, and a first wedge block is provided on the other side; The locking plate slides through the second guide hole at the front end of the housing, and its side end is provided with a second wedge block and a spherical groove; The locking block is fixed to the inner wall of the housing, and a top rod is provided in the mounting groove at its side end; a locking ball is installed at the outer end of the top rod and is engaged in the spherical groove, and a third return spring is sleeved on the outer side.

[0016] A further improvement is made to the pin straightening mechanism: the first drive base is fixed on the secondary mounting base, and two symmetrical adjustment brackets are slidably connected on it; an angle calibration fixture is fixed to the outer end of the adjustment bracket; Pin flattening mechanism: The second drive base is fixed on the auxiliary mounting base, and two symmetrical sliders are slidably connected on it; the flattening base plate is fixed to the inner side of the slider, and the pin mold is fixed to the inner wall of the flattening base plate.

[0017] A further improvement is that the base assembly mechanism includes: The third drive base is fixed to the auxiliary mounting base, and a push block is slidably connected to it; a push rod is fixed to the front end of the push block, and the push rod is directly opposite the positioning table at the end of the second vibrating feeder. The assembly bracket is fixed to the secondary mounting base, on which a dual-head drive motor is mounted; the two output shafts of the dual-head drive motor are fixed to symmetrical assembly grippers, which are located directly above the positioning table.

[0018] A further improvement is that the 120° split-leg mechanism includes: a first split-leg base fixed to the secondary mounting base, with a split-leg platform symmetrically mounted on its top; a V-shaped split-leg groove provided in the center of the split-leg platform, with a split-leg gap provided in between; and a lifting rod vertically mounted in the center of the base, with a split-leg guide fixed to its top and located directly above the split-leg gap. The 180° split-leg mechanism includes: a second split-leg base fixed to the auxiliary mounting base, with a flat split-leg platform mounted on its top; a receiving groove is opened in the center of the flat split-leg platform, and its bottom is connected to the horizontal split-leg groove.

[0019] A further improvement is that the cutting mechanism includes: a cutting drive seat fixedly mounted on the auxiliary mounting base, with a cutting platform fixedly mounted at its center; a cutting platform fixedly connected to the top of the cutting platform, with a positioning module and a bottom chip removal hole inside; and two cutting blade seats symmetrically arranged on the drive seat, with cutting blades mounted on their tops and located on both sides of the positioning module. The capacitance detection mechanism includes: a detection drive seat fixed on a secondary mounting base, on which a symmetrically sliding detection seat is mounted; a wedge-shaped drive block and a transmission wheel are provided on the inner side of the detection seat; a lifting rod is vertically positioned between the two transmission wheels; a detection platform is fixed on the side end of the support frame and located above the center of the detection seat; a detection probe penetrates the side wall of the detection housing; a detection connecting table is fixedly connected to the inner wall of the upper part of the detection seat on the adjacent side, and a second reset spring is sleeved between the side ends of the two detection connecting tables; Visual inspection system: The industrial camera is fixed on the auxiliary mounting base, with its lens facing the rotary table exit.

[0020] 3. Beneficial effects: This invention achieves the following breakthrough advantages through modular integration and collaborative control: (1) Improved accuracy: Dual-station capacity detection (front measuring fixture + rear measuring fixture) combined with an industrial camera achieves a false detection rate of <0.1%. The 120° and 180° split-pin mechanisms operate in separate steps, with a pin angle deviation of ≤0.5°. The cutting tool works in conjunction with the positioning module, and the cutting length error is ≤ ±0.05mm.

[0021] (2) Efficiency doubled: The first vibrating feeder and the second vibrating feeder feed material synchronously, and the turntable operates continuously in 12 circumferential positions, with a capacity of 12,000 pieces / day. The transfer gripper works in conjunction with the pusher actuator, and the process changeover time is less than 0.3 seconds.

[0022] (3) Quality closed-loop control: The waste collection system sorts in real time: diced scraps go into the first collection box, and defective products go into the second collection box; unqualified capacitors detected by the front and rear test fixtures are discharged into the first collection container in real time through the discharge fixture; defective products detected by the industrial camera in terms of appearance or angle are discharged into the second collection container at the rotary table exit station through the push actuator 7 or other discharge mechanism.

[0023] The ink printing unit is linked with the UV lamp, and the ink curing qualification rate is >99%. After UV curing, the ink adhesion test meets the GB / T 9286 standard.

[0024] (4) Easy maintenance: The sealed door panel features a quick-opening and closing design, and the collection box replacement time is less than 1 minute. The cleaning brush height is adjustable (pole + telescopic arm), and it is compatible with capacitors of different specifications.

[0025] It should be noted that the structures not described in this invention are not related to the design points and improvement directions of this invention, and are the same as or can be implemented using existing technologies, so they will not be elaborated here. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cleaning unit of the present invention; Figure 3 This is a schematic diagram of the structure of the chamfer detection unit of the present invention; Figure 4 This is a schematic diagram of the structure of the ink printing unit of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram of the ink printing unit; Figure 6 This is a schematic diagram of the drying unit of the present invention; Figure 7 This is a schematic diagram of the material pushing actuator of the present invention; Figure 8 This is a schematic diagram of the turntable system of the present invention; Figure 9 This is a schematic diagram of the clamping mechanism of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram of the clamping mechanism; Figure 11 This is a schematic diagram of the pin straightening mechanism of the present invention; Figure 12 This is a schematic diagram of the pin flattening mechanism of the present invention; Figure 13This is a schematic diagram of the base assembly mechanism of the present invention; Figure 14 This is a schematic diagram of the 120° split-leg mechanism of the present invention; Figure 15 This is a schematic diagram of the 180° split-leg mechanism of the present invention; Figure 16 This is a schematic diagram of the cutting mechanism of the present invention; Figure 17 This is a schematic diagram of the capacitance detection mechanism of the present invention.

[0027] Explanation of the labels in the diagram: 1. Main mounting base; 11. First vibrating feeder; 12. Feed hopper; 2. Secondary mounting base; 21. Sealing door panel; 22. First collection container; 23. Second collection container; 24. Connecting bracket; 25. Industrial camera; 3. Cleaning unit; 31. Vertical column; 32. Horizontal adjustment rod; 33. Telescopic arm; 34. Drive motor; 35. Cleaning brush; 4. Corner cutting detection unit; 41. Fixture mounting base; 42. Carrier plate; 421. Feeding fixture; 422. Foot trimming fixture; 423. Front test fixture; 424. Turning fixture; 425. Rear test fixture; 426. Discharge fixture; 427. Foot cutting tool; 428. Discharge fixture; 43. Lateral slide; 44. Transfer mounting base; 441. Cylinder; 442. Transfer gripper; 5. Ink printing unit; 51. Printing support frame; 52. Ink container; 53. Ink-dipping mechanism; 531. Ink-dipping bracket; 532. Swing arm; 533. First return spring; 534. Guide wheel; 535. Linkage bracket; 536. Ink-dipping brush; 54. Seal mechanism; 541. Seal holder; 542. Multi-layer linkage arm; 543. Guide rod; 544. Seal head; 545. Top plate; 546. Limiting sleeve; 55. Printing drive mechanism; 551. Drive mounting base; 552. Transmission base; 553. First drive arm; 554. Pressure plate; 555. Second drive arm; 556. Limiting frame; 557. Push rod; 6. Drying unit; 61. Rotary drying tray; 62. Pin positioning hole; 63. Mounting bracket; 64. Ultraviolet lamp; 7. Pushing actuator; 71. Pushing bracket; 72. Sliding platform; 721. Sliding frame; 722. Pull block; 723. Roller; 73. Main drive rod; 731. U-shaped clamp; 732. Connecting sleeve; 733. Driven rod; 8. Turntable system; 81. Height-adjustable rotating worktable; 82. Clamping mechanism; 821. Rotating base; 822. Lower housing; 8221. Limiting post; 823. Upper housing; 8231. First guide hole; 8232. Elastic clamping plate; 8233. Compression spring; 8234. First wedge block; 824. Second guide hole; 825. Locking plate; 8251. Second wedge block; 8252. Spherical groove; 826. Locking block; 8261. Mounting slot; 8262. Push rod; 8263. Locking ball; 8264. Third return spring; 83. Pin straightening mechanism; 831. First drive base; 832. Adjustment bracket; 833. Angle calibration fixture; 84. Pin flattening mechanism; 841. Second drive base; 842. Slider; 843. Flattening base plate; 844. Foot forming mold; 85. Base assembly mechanism; 851. Third drive base; 852. Push block; 853. Push rod; 854. Positioning table; 855. Assembly bracket; 856. Dual-head drive motor; 857. Assembly gripper; 86. 120° split-leg mechanism; 861. First split-leg base; 862. Split-leg platform; 863. V-shaped split-leg groove; 864. Lifting rod; 865. Split-leg guide frame; 87. 180° split-leg mechanism; 871. Second split-leg base; 872. Planar split-leg platform; 873. Receiving groove; 874. Horizontal split-leg groove; 88. Cutting mechanism; 881. Cutting drive seat; 882. Cutting platform; 883. Cutting platform; 884. Positioning module; 885. Chip removal hole; 886. Cutting blade holder; 887. Cutting blade; 89. Capacitance testing mechanism; 891. Testing drive base; 892. Testing base; 8921. Wedge-shaped drive block; 8922. Transmission wheel; 8923. Lifting rod; 893. Testing connecting platform; 894. Second return spring; 895. Support frame; 896. Testing platform; 897. Testing housing; 898. Testing probe; 9. Second vibrating feeder. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0029] Combined with appendix Figures 1-17This document details the installation structure, operation process, and technical effects of the present invention. Taking the production of a 5mm lead capacitor as an example, the key parameters are as follows: Transfer gripper 442 moving speed: 1.2 m / s; UV lamp power: 300 W (wavelength 365 nm); The second return spring 894 has an elastic coefficient of 8 N / mm.

[0030] I. Component Installation and Spatial Positioning 1. Base system ( Figure 1 ) The main mounting base 1 is fixed to the ground with anchor bolts, the first vibrating feeder 11 is installed on it, and the feed hopper 12 is suspended 20cm above the feeder inlet.

[0031] The secondary mounting base 2 is horizontally fixed to the material feeding frame of the first vibrating feeder 11 via the connecting bracket 24. The two are 10cm apart and parallel. The connecting bracket (24) is located at the junction of the main and secondary bases.

[0032] 2. Cleaning Unit 3 ( Figure 1-2 ) The vertical column 31 is bolted to the left side of the secondary mounting base 2, and the horizontal adjustment rod 32 is sleeved on the outside of the column, and the height is adjusted by tightening the bolt.

[0033] The telescopic arm 33 is vertically welded to the side of the adjusting rod 32, the drive motor 34 is installed at its bottom, and the cleaning brush 35 is coaxially set with the material conveyor (the spacing is adjustable ±2cm).

[0034] 3. Detection of chamfer unit 4 ( Figure 3 ) Two sets of clamp mounting bases 41 are symmetrically mounted on the auxiliary mounting base 2, and the carrier plate 42 slides in the Y direction (stroke ±5cm) through a linear slide rail.

[0035] The feed clamp 421 to the discharge clamp 428 are arranged at equal intervals along the X direction.

[0036] Linkage core: The transverse slide 43 is fixed to the rear side of the carrier plate 42, and the transfer mounting base 44 achieves reciprocating sliding in the X direction through the slider; the cylinder 441 drives the transfer gripper 442 to perform Y-direction clamping (pressure 0.5N).

[0037] 4. Ink printing unit 5 ( Figure 4-5 ) The printing support frame 51 is connected above the detection corner cutting unit, and the center of the ink container 52 is aligned with the transfer path.

[0038] Ink-dipping mechanism 53: Ink-dipping bracket 531 is fixed to transfer mounting base 44, swing arm 532 is connected to bracket via hinge, first return spring 533 provides rebound force; ink-dipping brush 536 is immersed 2mm below the ink surface, first return spring 533 elastic coefficient: 5N / mm.

[0039] Stamp mechanism 54: Stamp holder 541 is fixed to transfer mounting base 44, guide rod 543 passes through multi-layer linkage arm 542; the distance between stamp head 544 and capacitor is adjustable (1-3mm).

[0040] 5. Printing drive mechanism 55 ( Figure 5 ) The drive mounting base 551 is bolted to the auxiliary mounting base 2, and the transmission base 552 is connected to the output shaft via a coupling.

[0041] The pressure plate 554 is directly opposite the center of the guide wheel 534, the limiting frame 556 is fitted with the limiting sleeve 546, and the push rod 557 is connected to the vertical cylinder (stroke 10cm).

[0042] 6. Drying unit 6 ( Figure 6 ) The rotary drying tray 61 is installed on the same plane as the feeding rack, and the pin positioning hole 62 is adapted to the diameter of 5mm pins.

[0043] The UV lamp 64 is suspended above the positioning hole (5cm away) by the mounting bracket 63. The wavelength of the UV lamp 64 is 365±5nm.

[0044] 7. Material pushing actuator 7 ( Figure 7 ) The pusher bracket 71 is welded to the auxiliary mounting base 2, and a linear guide rail is installed on the sliding platform 72.

[0045] The U-shaped clamp 731 precisely fits the roller 723 (with a gap of 0.1mm), and the telescopic cylinder drives the driven rod 733.

[0046] 8. Turntable system 8 ( Figure 8 ) The height-adjustable and rotating worktable 81 is driven by a servo motor (height stroke 10cm, rotation accuracy ±0.1°).

[0047] Clamping mechanism 82 ( Figures 8-10 ): The upper housing 823 and the lower housing 822 are connected by a snap fastener, and the elastic clamping plate 8232 and the compression spring 8233 cooperate to provide clamping force.

[0048] The locking ball 8263 engages with the spherical slot 8252 to form a mechanical self-locking mechanism, and the third return spring 8264 ensures unlocking and reset.

[0049] 9. Pin processing unit ( Figure 11-17 ) Pin straightening mechanism 83: Angle calibration fixture 833 opens and closes by adjusting bracket 832 (stroke ±2cm).

[0050] Pin flattening mechanism 84: The surface hardness of the pin mold 844 is HRC60, and the flattening force is 50N.

[0051] Base assembly mechanism 85: Push rod 853 pushes the base to the processing position of positioning table 854, and assembly gripper 857 closes in 0.2s.

[0052] 120° split-leg mechanism 86: V-shaped split-leg groove 863 angle 120±0.1°, split-leg guide 865 pressing speed 0.5m / s.

[0053] 180° splitting mechanism 87: The horizontal splitting groove 874 is 3mm deep and smoothly transitions with the receiving groove 873 through a chamfer.

[0054] Cutting mechanism 88: The gap between the cutting edge of the cutter 887 and the positioning module 884 is 0.05mm, and the chip discharge hole 885 is inclined at 30° to discharge material.

[0055] Capacitance testing agency 89: The lifting rod 8923 rises and pushes the transmission wheel 8922, causing the detection seat 892 to separate (stroke 2cm).

[0056] A second reset spring 894 is installed between the test connection platforms 893 and automatically resets after compression (response time 0.1s).

[0057] The pressure at the contact pin of probe 898 is 0.3N.

[0058] 10. Visual inspection system ( Figure 8 and Figure 17 ) The industrial camera 25 has 5 megapixels, the lens is 15cm away from the rotary table exit, and the shooting frame rate is 60fps.

[0059] II. Operational Procedure Phase 1: Material conveying and pretreatment ( Figure 1 , Figure 2 and Figure 8 ) The first vibrating feeder 11 feeds capacitors at 60 per minute, while the cleaning brush 35 removes dust at a speed of 1200 rpm.

[0060] The second vibrating feeder 9 conveys the base to the positioning table 854, and the push rod 853 pushes it into place.

[0061] Phase 2: Detection and Foot Cutting ( Figure 3 ) Transfer gripper 442 transfers capacitors: The capacitors that fail the initial screening by the front test fixture 423 are transferred to the discharge fixture 426 and discharged into the first collection container 22.

[0062] 442 transfer gripper clamping force: 0.5-1.0 N adjustable; The cutting tool 427 precisely cuts the foot (length 5±0.05mm), and the scrap is placed into the first collection container 22.

[0063] Phase 3: Ink Printing and Curing Figures 4-6 ) Ink application: When the pressure plate 554 moves upward, the guide wheel 534 is freed to return to its original position under the reset characteristic of the spring, and is attached to the bottom of the ink cartridge, driving the ink-applying brush 536 to scrape ink (frequency 2Hz) so that the ink is evenly applied.

[0064] Printing: The limiting frame 556 drives the stamp head 544 to press down (pressure 0.3MPa).

[0065] Curing: Rotate the drying tray 61 at 10 rpm and irradiate with UV lamp 64 for 3 seconds.

[0066] Phase 4: Pin Forming and Inspection Figures 8-17 ) 1. Stepped feet: In the 120° split mechanism 86, the split guide 865 presses the pin down to the bottom of the V-shaped split groove 863, forcing the pin to form along the 120° inclined plane; the 180° split mechanism 87 expands the pin a second time through the horizontal split groove 874 to eliminate springback stress.

[0067] 180° pinout: The pins are pressed into the horizontal pinout slots of the 874 molding process.

[0068] 2. Cutting leads: The cutter 887 cuts off excess leads, and the debris enters the second collection container 23 through the chip discharge hole 885.

[0069] 3. Capacitance testing: The lifting rod 8923 rises and pushes the transmission wheel 8922, causing the two detection seats 892 to separate. After the capacitor is placed, the second reset spring 894 drives the detection seat 892 to close, and the detection probe 898 contacts the pin to complete the test.

[0070] The second reset spring 894 is compressed and stores energy, and automatically resets within 0.2 seconds after detection.

[0071] Phase 5: Quality Closed Loop ( Figure 8 and Figure 17 ) Industrial camera 25 captures the pin angle (accuracy 0.1°) and appearance. Defective products detected (angle mismatch or appearance defects) are pushed into the second collection container 23 for rejection at the exit station of rotary table 81 by pusher actuator 7 or other dedicated discharge mechanism (not shown separately in the figure, but can be understood as similar to discharge fixture 426 or integrated in discharge fixture 428).

[0072] III. Mechanism for Achieving Technical Effects 1. Accuracy guarantee: Double wedge block linkage: The second wedge block 8251 presses against the first wedge block 8234, so that the elastic clamping plate 8232 applies force evenly (the amount of pin deformation is <0.01mm), and clamps the capacitor.

[0073] Stepped feet: Step-by-step machining from 120° to 180° reduces metal stress, with an angle deviation of ≤0.5°.

[0074] Reset control: The second reset spring 894 ensures that the reset accuracy of the detection seat 892 is ±0.05mm.

[0075] 2. Efficiency optimization: Synchronous control: The movement delay between the transfer gripper 442 and the turntable 81 is <10ms.

[0076] Mechanical self-locking: U-shaped clamp 731 sets with roller 723, material transfer success rate 100%.

[0077] 3. Quality closed loop: Dual-station inspection: false detection rate of front test fixture 423 and rear test fixture 425 <0.1%.

[0078] Intelligent reset: The second reset spring 894 enables the detection mechanism to be reset in milliseconds.

[0079] Compared with existing technologies, this technology achieves full automation of the capacitor manufacturing process through the coordinated operation of core components such as the main mounting base 1, auxiliary mounting base 2, first vibratory feeder 11, transfer gripper 442, lead guide 865, and second return spring 894. This automation encompasses the entire process from capacitor conveying, cleaning, dual-station capacity detection, precision lead clamping, ink printing, UV curing, 120° to 180° stepped lead clamping, capacity detection, and visual sorting. The second return spring 894 ensures rapid reset of the detection base 892, and the synchronous control of the transfer gripper 442 and the height-adjustable rotating worktable 81 enables seamless process integration, ultimately producing high-precision leads. This significantly improves lead angle consistency, lead length accuracy, and production efficiency. Furthermore, closed-loop quality control completely eliminates manual omissions, systematically solving the challenges of efficiency, accuracy, and quality control in capacitor lead processing.

[0080] Components not described in detail in this invention (such as servo motors and linear guides) are all implemented using techniques known in the art.

[0081] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads, characterized in that, include: Base system: The first vibratory feeder (11) is installed on the main mounting base (1), and a feeding hopper (12) is set above its feeding end; the transversely extending secondary mounting base (2) is fixed to the feeding frame of the first vibratory feeder (11) through the connecting bracket (24), and the front side of the secondary mounting base (2) is hinged to a sealing door plate (21). The detection corner cutting unit (4): Two sets of clamp mounting seats (41) are symmetrically installed on the auxiliary mounting base (2), and a Y-direction sliding carrier plate (42) is set on it; along the X direction, the carrier plate (42) is arranged in sequence as follows: feeding clamp (421), foot clamp (422), front test clamp (423), turning clamp (424), rear test clamp (425), discharge clamp (426), foot cutting tool (427), and discharge clamp (428); the transverse slide (43) is fixed to the rear side of the carrier plate (42), and a transfer mounting seat (44) that reciprocates in the X direction is installed on it; multiple sets of transfer claws (442) are set on the front side of the transfer mounting seat (44), and the rear cylinder (441) drives the transfer claws (442) to perform Y-direction clamping movement; Ink printing unit (5): A printing support frame (51) is fixed above the detection corner cutting unit, and an ink container (52) is installed on its side; an ink dispensing mechanism (53) and a stamping mechanism (54) are installed on the transfer mounting base (44). Drying unit (6): The rotary drying tray (61) is set on the same plane as the first vibrating feeder (11) feeding rack, and pin positioning holes (62) are evenly distributed on its edge. The side mounting bracket (63) is equipped with ultraviolet lamps (64) covering the positioning holes. Turntable system (8): The liftable rotating worktable (81) is located above the auxiliary mounting base (2), with 12 clamping mechanisms (82) evenly distributed around its circumference, and a pushing execution mechanism (7) is provided on the side. Pin processing unit: A pin straightening mechanism (83), a pin flattening mechanism (84), a base assembly mechanism (85), a 120° pin splitting mechanism (86), a 180° pin splitting mechanism (87), a pin cutting mechanism (88), and a capacitance detection mechanism (89) are arranged sequentially below the rotating worktable (81). Material supply: The first vibrating feeder (11) conveys the capacitor body, and the second vibrating feeder (9) is located on the right side of the auxiliary mounting base (2), and its conveying end is connected to the base assembly mechanism (85).

2. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that... Also includes: Waste collection system: The left sealing door panel (21) has a through hole for embedding the first collection container (22), and the right sealing door panel has a through hole for embedding the second collection container (23); the outlet of the discharge clamp (426) and the cutting tool (427) is connected to the first collection container (22); Cleaning unit (3): A vertical column (31) is fixed on the left side of the auxiliary mounting base (2), and a horizontal adjusting rod (32) is sleeved on the outside of the vertical column (31); a telescopic arm (33) is vertically fixed to the side end of the adjusting rod (32), and a drive motor (34) and a cleaning brush (35) covering the material conveying path are installed at its bottom end.

3. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 2, characterized in that, The ink-dipping mechanism (53) includes: an ink-dipping bracket (531) fixed to the transfer mounting base (44), a swing arm (532) hinged to its front side, and a first return spring (533) provided between the swing arm (532) and the ink-dipping bracket (531); a guide wheel (534) is installed on the rear side of the top of the ink-dipping bracket (531), and a connecting rod bracket (535) is fixed to the front side of the bottom. An ink-dipping brush (536) immersed in an ink container (52) is installed at the bottom end of the connecting rod bracket (535). The stamp mechanism (54) includes: a stamp bracket (541) fixed to the transfer mounting base (44), with a multi-layer linkage arm (542) installed at its front end; two guide rods (543) passing through the multi-layer linkage arm (542), with the stamp head (544) fixed at the bottom end and the top plate (545) fixed at the top end; and a limiting sleeve (546) sleeved on the rear end of the top plate (545).

4. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 3, characterized in that... Also includes: Printing drive mechanism (55): Drive mounting base (551) is fixed on auxiliary mounting base (2), and transmission base (552) is mounted on it; the output shaft of transmission base (552) is fixed to the first drive arm (553) and the second drive arm (555); pressure plate (554) is mounted on the end of the first drive arm (553) and is located directly above the guide wheel (534); limit frame (556) is mounted on the end of the second drive arm (555) and is sleeved on the outside of limit sleeve (546); two push rods (557) are respectively hinged to the first drive arm (553), the second drive arm (555) and the vertical cylinder.

5. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that, The pushing actuator (7) includes: The pusher bracket (71) is fixed to the auxiliary mounting base (2), and a sliding platform (72) is installed on its side end; The sliding frame (721) is slidably installed on the sliding platform (72), with a pull block (722) at its upper end and a roller (723) hinged at its side end. The main drive rod (73) passes through the sliding platform (72), and its rear end is fixed to the U-shaped clamp (731) and the roller (723). Its front end is hinged to the driven rod (733) via the connecting sleeve (732). The bottom end of the driven rod (733) is connected to the telescopic cylinder.

6. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that, The clamping mechanism (82) includes: The rotating base (821) is fixed to the edge of the rotating worktable (81), and its outer end is fixed to the lower housing (822); the bottom center of the lower housing (822) is provided with a limiting post (8221), and the top is fixed to the upper housing (823). Two symmetrical first guide holes (8231) are opened at the bottom of the upper shell (823), and elastic clamping plates (8232) are installed inside them; a compression spring (8233) is provided between the elastic clamping plate (8232) and the inner wall of the shell, and a first wedge block (8234) is provided on the other side. The locking plate (825) slides through the second guide hole (824) at the front end of the housing, and its side end is provided with a second wedge block (8251) and a spherical groove (8252). The locking block (826) is fixed to the inner wall of the housing, and a top rod (8262) is provided in the mounting groove (8261) on its side end; a locking ball (8263) is installed on the outer end of the top rod (8262) and is inserted into the spherical groove (8252), and a third return spring (8264) is sleeved on the outside.

7. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that, Pin straightening mechanism (83): The first drive base (831) is fixed on the secondary mounting base (2), and two symmetrical adjustment brackets (832) are slidably connected on it; the outer end of the adjustment bracket (832) is fixed to the angle calibration fixture (833); Pin flattening mechanism (84): The second drive base (841) is fixed on the sub-mounting base (2), and two symmetrical sliders (842) are slidably connected on it; the flattening base plate (843) is fixed to the inner side of the slider (842), and the foot mold (844) is fixed on the inner wall of the flattening base plate (843).

8. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that, The base assembly mechanism (85) includes: The third drive base (851) is fixed on the auxiliary mounting base (2), and the push block (852) is slidably connected on it; the front end of the push block (852) is fixedly connected to the push rod (853), and the push rod (853) is directly opposite the positioning table (854) at the end of the second vibrating feeder (9). The assembly bracket (855) is fixed on the secondary mounting base (2), and a dual-head drive motor (856) is mounted on it; the two output shafts of the dual-head drive motor (856) are fixed to symmetrical assembly grippers (857), and the assembly grippers (857) are located directly above the positioning table (854).

9. The fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that: The 120° split-leg mechanism (86) includes: a first split-leg base (861) fixedly mounted on the auxiliary mounting base (2), with a split-leg platform (862) symmetrically mounted on its top; a V-shaped split-leg groove (863) is provided in the center of the split-leg platform (862), with a split-leg gap in between; a lifting rod (864) is vertically mounted on the center of the base, with a split-leg guide frame (865) fixedly connected to its top end and located directly above the split-leg gap; The 180° split-leg mechanism (87) includes: a second split-leg base (871) fixed on the auxiliary mounting base (2), with a flat split-leg platform (872) mounted on its top; a receiving groove (873) is opened in the center of the flat split-leg platform (872), and its bottom is connected to the horizontal split-leg groove (874).

10. A fully automatic precision angle-measuring machine for intelligent conveying of capacitor leads according to claim 1, characterized in that: The cutting mechanism (88) includes: a cutting drive seat (881) fixedly mounted on the auxiliary mounting base (2), with a cutting platform (882) fixedly mounted at its center; a cutting platform (883) fixedly connected to the top of the cutting platform (882), with a positioning module (884) and a bottom chip removal hole (885) inside; and two cutting knife seats (886) symmetrically arranged on the drive seat, with a cutting knife (887) mounted on its top and located on both sides of the positioning module (884); The capacitance detection mechanism (89) includes: a detection drive seat (891) fixedly mounted on the auxiliary mounting base (2), on which a detection seat (892) slides symmetrically; a wedge-shaped drive block (8921) and a transmission wheel (8922) are provided on the inner side of the detection seat (892); a lifting rod (8923) is vertically disposed between the two transmission wheels; a detection platform (896) is fixedly mounted on the side end of the support frame (895) and located above the center of the detection seat; a detection probe (898) penetrates the side wall of the detection housing (897); a detection connecting table (893) is fixedly connected to the inner wall of the upper part of the detection seat (892) on one side close to each other, and a second return spring (894) is sleeved and installed between the side ends of the two detection connecting tables (893). Visual inspection system: An industrial camera (25) is fixed on the auxiliary mounting base (2). The industrial camera (25) is connected to the capacitance detection mechanism (89) and its lens is facing the clamping mechanism (82) station at the exit of the rotary table (81). The transfer gripper (442) and the liftable rotating worktable (81) are synchronously controlled by a servo motor, and the second reset spring (894) is connected to the detection seat (892) to achieve reset.

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