An automated equipment for foam bonding and external circuit shaping of PCBA.

Abstract

This invention relates to an automated device for foam bonding and external circuit shaping of PCBAs, comprising: a frame, a PCBA feeding assembly, a PCBA conveyor line, a foam bonding assembly, and a bending assembly; the PCBA feeding assembly includes a multi-axis feeding robot and a feeding vacuum nozzle; the foam bonding assembly includes a foam bonding frame, a foam bonding robot, a foam bonding mechanical gripper, and a foam bonding vacuum nozzle; the bending assembly includes a bending transfer assembly and a bending mechanism; the bending mechanism includes a bending frame, a bending positioning table, a bending clamping angle cylinder, a bending plate, and a bending flipping drive, the latter driving the bending plate to rotate. This invention achieves automated foam bonding to PCBAs through the foam bonding robot of the foam bonding assembly in conjunction with the PCBA conveyor line, resulting in high efficiency; the bending mechanism utilizes the flipping bending plate to automatically bend the pins into an L-shape, clamping the foam between the pin and the PCBA, ensuring that the bending plate does not damage the foam due to interference throughout the process.

Description

Technical Field

[0001] This invention relates to PCBA production equipment, and particularly to an automated device for attaching foam and shaping external circuits in PCBA. Background Technology

[0002] PCBAs are crucial components of existing integrated circuits and are widely used. To facilitate the connection between PCBA components and adjacent components, pins are typically placed on the PCBA board. For connection purposes, these pins need to be bent into different shapes, with U-shaped pin bending being a common method. However, existing U-shaped pin bending methods have low bending precision and cannot allow for the attachment of foam between the bent pin and the PCBA. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide an automated device for attaching foam and shaping external circuitry in PCBA.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An automated device for attaching foam and shaping external circuitry in PCBA, comprising:

[0006] frame;

[0007] PCBA loading assembly, which is mounted on the rack, is used to load PCBAs;

[0008] The PCBA conveyor line is set on the frame and is used to transfer the PCBA supplied by the PCBA feeding assembly to the foam bonding station.

[0009] A foam attaching assembly, which is mounted on the frame, is used to attach foam to the PCBA on the PCBA conveyor line;

[0010] A bending assembly, which is disposed on the frame, is used to bend the pins on the PCBA;

[0011] The PCBA loading assembly includes a multi-axis loading robot mounted on the frame and a loading vacuum nozzle mounted on the multi-axis loading robot.

[0012] The foam attaching assembly includes a foam attaching frame mounted on the frame, a foam attaching robot mounted on the foam attaching frame, foam attaching mechanical grippers mounted on the foam attaching robot, and a foam attaching vacuum suction head mounted between the grippers of the foam attaching mechanical grippers. The gripping surface of the foam attaching mechanical grippers is provided with anti-slip texture.

[0013] The folding line assembly includes a folding line transfer assembly disposed on the frame and a folding line mechanism disposed on the frame. The folding line transfer assembly is used to transfer the PCBA with foam attached to it onto the folding line mechanism.

[0014] The folding mechanism includes a folding frame mounted on the frame, a folding positioning platform mounted on the top of the folding frame, a folding clamping angle cylinder mounted on one side of the folding positioning platform, a folding plate rotatably connected to the left and right tops of the folding frame, and a folding flipping drive mounted on the folding frame. The folding plate is provided with a folding groove to facilitate the accommodation of needles. The folding flipping drive drives the folding plate to rotate. Under the drive of the folding flipping drive, the folding plate flips 180° from the starting position. When the folding plate is in the starting position, it is in a horizontal state and the opening of the folding groove is facing upward.

[0015] As a further improvement to this design, the PCBA loading assembly also includes a loading pitch-changing mechanism. This mechanism includes a pitch-changing frame mounted on the frame, a pitch-changing slide rail mounted on the pitch-changing frame, a pitch-changing slide table slidably engaged with the pitch-changing slide rail, a pitch-changing positioning platform mounted on the pitch-changing frame at one end of the pitch-changing slide rail, and a pitch-changing cylinder mounted on the pitch-changing positioning platform. The cylinder rod of the pitch-changing cylinder is connected to the pitch-changing slide table. Both the top of the pitch-changing positioning platform and the top of the pitch-changing slide table are provided with a pitch-changing fixed positioning block and a pitch-changing movable positioning block for positioning the PCBA. A clamping cylinder is provided on the pitch-changing positioning platform and the pitch-changing slide table. The cylinder rod of the clamping cylinder is connected to the pitch-changing movable positioning block. The pitch-changing movable positioning block is positioned opposite to the pitch-changing fixed positioning block, and the pitch-changing movable positioning block is elastically connected to the clamping cylinder. A photoelectric detection switch for detecting the presence or absence of a PCBA is provided on the pitch-changing positioning platform and the pitch-changing slide table.

[0016] As a further improvement to this design, the PCBA loading assembly also includes a pressure holding assembly. The pressure holding assembly includes a pressure holding linear module mounted on the frame, a pressure holding frame mounted on the frame, a pressure holding cylinder mounted on the pressure holding frame, a pressure holding plate mounted on the cylinder rod of the pressure holding cylinder, a pressure holding block slidably connected to the pressure holding plate, and a pressure holding transfer platform mounted on the pressure holding linear module. A rolling cylinder is provided below the pressure holding transfer platform, a rolling lifting cylinder is provided on the rolling cylinder, and a rolling scraper is provided on the rolling lifting cylinder. The extension direction of the rolling cylinder points to the extension direction of the needle. The bottom surface of the pressure holding block is a plane. The pressure holding transfer platform and the loading pitch adjustment mechanism are located within the effective working range of the loading multi-axis robot.

[0017] As a further improvement to this design, the PCBA conveyor line includes a conveyor linear module, a conveyor table disposed on the conveyor linear module, and a conveyor corner cylinder disposed on the side of the conveyor table. The top surface of the conveyor table is provided with a conveyor positioning surface for positioning the PCBA. The clamp of the corner cylinder presses against the top surface of the PCBA during clamping.

[0018] As a further improvement to this design, a foam supply assembly is also included, comprising a foam supply linear module mounted on the frame, a foam supply frame mounted on the foam supply linear module, a foam platform horizontally rotatably connected to the foam supply frame, a pressing frame mounted on the foam supply frame, a pressing cylinder mounted on the pressing frame, a foam stacking bin mounted on the frame, a foam lifting linear module mounted on the frame, a foam transfer suction cup mounted on the foam lifting linear module, and a foam... The system comprises a foam transfer frame, a foam transfer linear module mounted on the foam transfer frame, a foam transfer vacuum nozzle mounted on the foam transfer linear module, and a platform tilting drive mounted on the foam supply frame. A pressing block is mounted on the pressing cylinder. The foam platform is a vacuum adsorption platform with a peeling surface at its front end. A separating claw is rotatably connected to the foam platform. A separating drive is located at the bottom of the foam platform, driving the separating claw to rotate. The platform tilting drive drives the foam platform to rotate around a horizontal axis. The end of the separating claw abuts against the separating surface of the foam to be separated, the top of the foam to be separated abuts against the pressing block, and the bottom of the foam to be separated abuts against the peeling surface. When the foam to be separated is in the separated state, the peeling surface is horizontal.

[0019] As a further improvement to this design, the platform tilting drive includes a foam tilting cylinder mounted on the foam supply rack and a platform crank connected to the rotation axis of the foam platform. The end of the platform crank is hinged to the cylinder rod of the foam tilting cylinder. The separation drive includes a separation cylinder mounted at the bottom of the foam platform and a separation crank connected to the rotation axis of the separation claw. The end of the separation crank is hinged to the cylinder rod of the separation cylinder. A foam fixing positioning strip is provided on one side of the foam platform, and a foam movable positioning strip is provided on the other side. A foam positioning cylinder is provided on the foam platform, and the foam positioning cylinder is connected to the foam movable positioning strip. Under the drive of the foam positioning cylinder, the foam movable positioning strip is perpendicular to the movement path of the foam on the foam platform.

[0020] As a further improvement to this design, the polygonal line assembly also includes a buffer positioning stage, and the polygonal line transfer assembly includes a polygonal line transfer linear module, a polygonal line transfer cylinder disposed on the polygonal line transfer linear module, a polygonal line transfer vacuum suction cup disposed on the polygonal line transfer cylinder, a polygonal line multi-axis robot disposed on the frame, a polygonal line multi-axis cylinder disposed on the polygonal line multi-axis robot, a polygonal line multi-axis vacuum suction cup disposed on the polygonal line multi-axis cylinder, and a polygonal line transfer guide camera disposed on the polygonal line multi-axis robot.

[0021] As a further improvement to this design, the folded line flipping drive includes a folded line cylinder mounted on the folded line frame, a folded line rack connected to the folded line cylinder, and a folded line gear mounted on the rotating shaft of the folded line plate, the folded line gear meshing with the folded line rack.

[0022] As a further improvement to this design, the folding frame is equipped with a folding line shaping and avoidance cylinder, the folding line shaping and avoidance cylinder is equipped with a folding line shaping mechanical gripper, the folding line shaping mechanical gripper is equipped with a folding line shaping claw, the extension direction of the folding line shaping and avoidance cylinder is parallel to the extension direction of the needle, and the movement direction of the folding line shaping claw is horizontal and perpendicular to the extension direction of the needle.

[0023] As a further improvement to this design, a film-tearing unit is also included. The film-tearing unit includes a film-tearing frame mounted on the frame, a film-tearing linear module mounted on the film-tearing frame, and a film-tearing assembly mounted on the film-tearing linear module. The film-tearing assembly includes a film-tearing base mounted on the film-tearing linear module, a film-tearing take-up shaft rotatably mounted on the film-tearing base, a film-tearing unwinding shaft rotatably mounted on the film-tearing base, a film-tearing guide wheel assembly mounted on the film-tearing base, a film-tearing head slidably connected to the film-tearing base, a film-tearing cylinder mounted on the film-tearing base, and a take-up motor mounted on the film-tearing base. The take-up motor is driven and connected to the take-up shaft, and the film-tearing cylinder is elastically connected to the film-tearing head. The tape on the film-tearing unwinding shaft passes through the bottom of the film-tearing head and then passes through the film-tearing guide wheel assembly to wind around the film-tearing take-up shaft.

[0024] The beneficial effects of this invention are: This invention achieves automated foam attachment to PCBA by using a foam attaching robot on the foam attaching assembly in conjunction with the PCBA conveyor line, resulting in high automatic operation efficiency; The folding mechanism uses a flipping folding plate to automatically bend the pins into a U-shape, with the foam sandwiched between the pins and the PCBA. Throughout the process, the folding plate will not damage the foam due to interference, and the folding groove can also improve the bending quality of the pins. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0027] Figure 2 This is a three-dimensional structural diagram of the PCBA loading assembly of the present invention.

[0028] Figure 3 This is a three-dimensional schematic diagram of the PCBA conveyor line and foam bonding assembly of the present invention.

[0029] Figure 4 This is a three-dimensional structural diagram of the polygonal line component of the present invention.

[0030] Figure 5 This is a three-dimensional structural diagram of the broken line mechanism of the present invention.

[0031] Figure 6 This is a three-dimensional structural diagram of the foam supply component of the present invention.

[0032] Figure 7 This is a front view of the foam carrier and its mounting components of the present invention.

[0033] Figure 8 This invention is in Figure 7 Schematic diagram of the cross-section at position AA.

[0034] Figure 9 This is a three-dimensional structural diagram of the broken line mechanism of the present invention.

[0035] Figure 10 This is a front view of the film-peeling assembly of the present invention.

[0036] Figure 11 This is a three-dimensional structural diagram of the film-peeling component of the present invention.

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of a PCBA board processed by the equipment of this invention.

[0038] In the diagram: 1. Frame; 2. PCBA feeding assembly; 20. Feeding pitch changing mechanism; 200. Pitch changing frame; 201. Pitch changing slide rail; 202. Pitch changing slide table; 203. Pitch changing cylinder; 204. Pitch changing positioning stage; 205. Pitch changing fixed positioning block; 206. Pitch changing movable positioning block; 207. Fixed clamping cylinder; 208. Photoelectric detection switch; 21. Feeding multi-axis robot; 22. Pressure holding assembly; 220. Pressure holding linear module; 221. Pressure holding cylinder; 222. Rolling scraper; 223. Pressure holding block; 224. Pressure holding frame; 225. Pressure holding plate; 226. Pressure holding transfer stage; 227. Rolling cylinder; 228. Rolling lifting cylinder; 23. Feeding vacuum nozzle; 3. PCBA conveyor line; 30. Conveyor linear module; 31. Conveyor table; 32. Conveyor corner cylinder; 4. Foam attaching assembly; 40. Foam attaching frame; 41. Foam attaching vacuum nozzle; 42. Foam attaching mechanical gripper; 43. Foam attaching robot; 5. Folding line assembly; 50. Folding line transfer assembly; 500. Folding line transfer linear module; 501. Folding line transfer vacuum suction cup; 502. Folding line transfer cylinder; 503. Folding line multi-axis robot; 504. Folding line multi-axis cylinder; 505. Folding line multi-axis vacuum suction cup; 506. Folding line transfer guide camera; 51. Folding line mechanism; 510. Folding line frame; 511. Folding line positioning table; 512. Folding line plate; 5120. Folding line groove 513. Zigzag Flip Drive Component; 5130. Zigzag Cylinder; 5131. Zigzag Rack; 5132. Zigzag Gear; 514. Zigzag Shaping and Avoidance Cylinder; 515. Zigzag Shaping Mechanical Gripper; 516. Zigzag Shaping Gripper; 517. Zigzag Clamping Angle Cylinder; 52. Buffer Positioning Stage; 6. Foam Supply Component; 60. Foam Supply Linear Module; 61. Foam Stacking Compartment; 62. Foam Transfer Suction Cup; 63. Foam Lifting Linear Module; 64. Foam Platform; 65. Foam Moving Frame; 66. Platform Flip Drive Component; 660. Foam Flip Cylinder; 661. Platform Crank; 67. Pressing Frame; 68. Pressing Cylinder; 69. Separation Drive Component; 690. Separation Cylinder 691. Cylinder; 610. Separation crank; 611. Foam supply rack; 612. Foam moving linear module; 613. Foam moving vacuum nozzle; 614. Foam movable positioning strip; 615. Foam positioning cylinder; 616. Foam fixed positioning strip; 617. Foam to be separated; 618. Pressing block; 619. Peeling surface; 610. Separation claw; 7. Film tearing unit; 70. Film tearing assembly; 700. Film tearing base; 701. Film tearing cylinder; 702. Film tearing take-up shaft; 703. Film tearing unwinding shaft; 704. Film tearing head; 705. Film tearing guide wheel assembly; 706. Take-up motor; 71. Film tearing linear module; 72. Film tearing frame; 8. PCBA; 80. Foam; 81. Pin; Detailed Implementation

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0040] Example: Please refer to Figure 1 This embodiment provides an automated device for attaching foam and shaping external circuitry in PCBA, comprising:

[0041] Rack 1;

[0042] PCBA loading assembly 2 is mounted on the frame 1 and is used to load PCBAs.

[0043] PCBA conveyor line 3, which is set on the frame 1, is used to transfer the PCBA supplied on the PCBA loading assembly 2 to the foam bonding station.

[0044] Foaming assembly 4, which is mounted on the frame 1, is used to attach foam 80 to the PCBA on the PCBA conveyor line 3;

[0045] The bending assembly 5 is disposed on the frame 1 and is used to bend the pins 81 on the PCBA;

[0046] The PCBA loading assembly 2 includes a loading multi-axis robot 21 mounted on the frame 1 and a loading vacuum nozzle 23 mounted on the loading multi-axis robot 21;

[0047] The foam attaching assembly 4 includes a foam attaching frame 40 mounted on the frame 1, a foam attaching robot 43 mounted on the foam attaching frame 40, foam attaching mechanical grippers 42 mounted on the foam attaching robot 43, and a foam attaching vacuum suction head 41 positioned between the grippers of the foam attaching mechanical grippers 42. The gripper surfaces of the foam attaching mechanical grippers 42 are provided with anti-slip textures. The foam attaching vacuum suction head 41 facilitates the application of pressure to the foam 80 during attachment and improves the accuracy of foam 80 gripping. The anti-slip textures effectively prevent the foam 80 from loosening or shifting.

[0048] The folding line assembly 5 includes a folding line transfer assembly 50 disposed on the frame 1 and a folding line mechanism 51 disposed on the frame 1. The folding line transfer assembly 50 is used to transfer the PCBA with foam 80 attached to it onto the folding line mechanism 51.

[0049] The folding mechanism 51 includes a folding frame 510 mounted on the frame 1, a folding positioning platform 511 mounted on the top of the folding frame 510, a folding clamping angle cylinder 517 mounted on one side of the folding positioning platform 511, a folding plate 512 rotatably connected to the left and right tops of the folding frame 510, and a folding flipping drive member 513 mounted on the folding frame 510. The folding plate 512 is provided with a folding groove 5120 to accommodate the needle 81. The folding flipping drive member 513 drives the folding plate 512 to rotate. Under the drive of the folding flipping drive member 513, the folding plate 512 flips 180° from the starting position. When the folding plate 512 is in the starting position, it is in a horizontal state and the opening of the folding groove 5120 is upward.

[0050] The above-mentioned foam attaching robot 43 on the foam attaching assembly 4, in conjunction with the PCBA conveyor line 3, achieves automated foam attaching to PCBA8, with high automatic operation efficiency; the bending mechanism 51 uses the flipping bending plate 512 to automatically bend the pin 81 into a U-shape, with the foam sandwiched between the pin 81 and PCBA8. Throughout the process, the bending plate 512 will not damage the foam due to interference, and the bending groove 5120 can also improve the bending quality of the pin 81.

[0051] Because the PCBAs supplied by the PCBA supplier are arranged closely together, interference can occur between the mechanisms when applying foam to multiple PCBAs. The PCBA feeding assembly 2 also includes a feeding pitch-changing mechanism 20, which allows for appropriate control of the distance between PCBAs, improving production efficiency. The feeding pitch-changing mechanism 20 includes a pitch-changing frame 200 mounted on the frame 1, a pitch-changing slide rail 201 mounted on the pitch-changing frame 200, a pitch-changing slide table 202 slidably engaged with the pitch-changing slide rail 201, a pitch-changing positioning platform 204 mounted on the pitch-changing frame 200 at one end of the pitch-changing slide rail 201, and a pitch-changing cylinder 203 mounted on the pitch-changing positioning platform 204. The cylinder rod of the pitch-changing cylinder 203 is connected to the pitch-changing slide table 202. Pitch changes are achieved by using the pitch-changing cylinder 203 to push the pitch-changing slide table 202, resulting in a simple structure and high efficiency.

[0052] Both the top of the variable-pitch positioning stage 204 and the top of the variable-pitch slide 202 are equipped with a variable-pitch fixed positioning block 205 and a variable-pitch movable positioning block 206 for positioning the PCBA. A clamping cylinder 207 is provided on both the variable-pitch positioning stage 204 and the variable-pitch slide 202. The cylinder rod of the clamping cylinder 207 is connected to the variable-pitch movable positioning block 206. The variable-pitch movable positioning block 206 is positioned opposite to the variable-pitch fixed positioning block 205 and is elastically connected to the clamping cylinder 207. The release and positioning of the PCBA are achieved through the elastic connection of the variable-pitch movable positioning block 206 and the variable-pitch fixed positioning block 205. A photoelectric detection switch 208 is provided on both the variable-pitch positioning stage 204 and the variable-pitch slide 202 to detect the presence or absence of the PCBA.

[0053] To bend the downward-folded pin 81 into a horizontal direction for easier subsequent folding, the PCBA loading assembly 2 also includes a pressure holding assembly 22. The pressure holding assembly 22 includes a pressure holding linear module 220 mounted on the frame 1, a pressure holding frame 224 mounted on the frame 1, a pressure holding cylinder 221 mounted on the pressure holding frame 224, a pressure holding plate 225 mounted on the cylinder rod of the pressure holding cylinder 221, a pressure holding block 223 slidably connected to the pressure holding plate 225, and a pressure holding transfer platform 226 mounted on the pressure holding linear module 220. A thread rolling cylinder 227 is provided below the pressure holding transfer platform 226. A thread rolling lifting cylinder 228 is provided on the thread rolling cylinder 227. A thread rolling scraper 222 is provided on the thread rolling lifting cylinder 228. The extension direction of the thread rolling cylinder 227 points to the extension direction of the pin 81. The bottom surface of the pressure holding block 223 is flat. The roller scraper 222, in conjunction with the pressure holding plate 225, straightens the needles. The pressure holding transfer table 226 and the feeding pitch adjustment mechanism 20 are located within the effective working range of the feeding multi-axis robot 21.

[0054] To facilitate precise control of PCBA transfer between workstations and simplify the structure of the PCBA conveyor line 3, the PCBA conveyor line 3 includes a conveyor linear module 30, a conveyor table 31 mounted on the conveyor linear module 30, and a conveyor corner cylinder 32 mounted on the side of the conveyor table 31. The top surface of the conveyor table 31 has a conveyor positioning surface for positioning the PCBA. The clamp of the conveyor corner cylinder 32 presses against the top surface of the PCBA during clamping. The conveyor corner cylinder 32 helps prevent the PCBA from shifting on the conveyor table 31.

[0055] To further improve the automation rate, the automated foam bonding and folding equipment for PCBA also includes a foam supply assembly 6. The foam supply assembly 6 includes a foam supply linear module 60 mounted on the frame 1, a foam supply rack 610 mounted on the foam supply linear module 60, a foam platform 64 horizontally rotatably connected to the foam supply rack 610, a pressing rack 67 mounted on the foam supply rack 610, a pressing cylinder 68 mounted on the pressing rack 67, a foam stacking bin 61 mounted on the frame 1, a foam lifting linear module 63 mounted on the frame 1, a foam transfer suction cup 62 mounted on the foam lifting linear module 63, and other components mounted on the frame 1. The system comprises a foam transfer frame 65, a foam transfer linear module 611 mounted on the foam transfer frame 65, a foam transfer vacuum nozzle 612 mounted on the foam transfer linear module 611, and a platform flipping drive 66 mounted on the foam supply frame 610. A pressing block 617 is mounted on the pressing cylinder 68. The foam platform 64 is a vacuum adsorption platform with a peeling surface 618 at its front end. A separating claw 619 is rotatably connected to the foam platform 64. A separating drive 69 is located at the bottom of the foam platform 64, driving the separating claw 619 to rotate. The platform flipping drive 66 drives the foam platform 64 to rotate around a horizontal axis. The flipped foam platform 64, in conjunction with the pressing block 617, allows for a tight arrangement of supplied foam, improving foam utilization. The foam only needs to be cut on a foam board. To further separate the foam, the end of the separating claw 619 abuts against the separating surface of the foam 616 to be separated, pushing the foam to be separated. The top of the foam 616 to be separated abuts against the pressing block 617, and the bottom of the foam 616 to be separated abuts against the peeling surface 618. When the foam 616 to be separated is in the separated state, the peeling surface 618 is in a horizontal state.

[0056] To simplify the structure and improve work efficiency, the platform flipping drive 66 includes a foam flipping cylinder 660 disposed on the foam supply rack 610 and a platform crank 661 connected to the rotation axis of the foam platform 64. The end of the platform crank 661 is hinged to the cylinder rod of the foam flipping cylinder 660. The separation drive 69 includes a separation cylinder 690 disposed at the bottom of the foam platform 64 and a separation crank 691 connected to the rotation axis of the separation claw 619. The end of the separation crank 691 is hinged to the cylinder rod of the separation cylinder 690. To facilitate foam positioning and subsequent foam separation, a foam fixing positioning strip 615 is provided on one side of the foam platform 64, and a foam movable positioning strip 613 is provided on the other side. A foam positioning cylinder 614 is provided on the foam platform 64, and the foam positioning cylinder 614 is connected to the foam movable positioning strip 613. Under the drive of the foam positioning cylinder 614, the foam movable positioning strip 613 is perpendicular to the movement path of the foam on the foam platform 64. This guides the foam after it enters the foam platform 64.

[0057] To further improve efficiency and shorten the waiting time between different mechanisms, the polygonal line assembly 5 also includes a buffer positioning stage 52. The polygonal line transfer assembly 50 includes a polygonal line transfer linear module 500, a polygonal line transfer cylinder 502 disposed on the polygonal line transfer linear module 500, a polygonal line transfer vacuum suction cup 501 disposed on the polygonal line transfer cylinder 502, a polygonal line multi-axis robot 503 disposed on the frame 1, a polygonal line multi-axis cylinder 504 disposed on the polygonal line multi-axis robot 503, a polygonal line multi-axis vacuum suction cup 505 disposed on the polygonal line multi-axis cylinder 504, and a polygonal line transfer guide camera 506 disposed on the polygonal line multi-axis robot 503.

[0058] The zigzag flipping drive component 513 includes a zigzag cylinder 5130 mounted on the zigzag frame 510, a zigzag rack 5131 connected to the zigzag cylinder 5130, and a zigzag gear 5132 mounted on the rotating shaft of the zigzag plate 512, the zigzag gear 5132 meshing with the zigzag rack 5131. This gear and rack transmission mechanism is simple in structure, has high transmission efficiency, and provides precise transmission.

[0059] To improve the bending quality at the pin bending position, the bending frame 510 is equipped with a bending line shaping and avoidance cylinder 514, a bending line shaping mechanical gripper 515, and a bending line shaping claw 516. The extension direction of the bending line shaping and avoidance cylinder 514 is parallel to the extension direction of the pin, and the movement direction of the bending line shaping claw 516 is horizontal and perpendicular to the extension direction of the pin. The bending line shaping mechanical gripper 515 facilitates the prevention of interference between the bending line shaping claw 516 and the pin when picking up and placing PCBA.

[0060] To facilitate automatic removal of the release film from the top of the foam and prevent subsequent bending of the needle from hindering film removal, the film-tearing unit 7 includes a film-tearing frame 72 mounted on the frame 1, a film-tearing straight module 71 mounted on the film-tearing frame 72, and a film-tearing assembly 70 mounted on the film-tearing straight module 71. The film-tearing assembly 70 includes a film-tearing base 700 mounted on the film-tearing straight module 71, a film-tearing take-up shaft 702 rotatably mounted on the film-tearing base 700, a film-tearing unwinding shaft 703 rotatably mounted on the film-tearing base 700, and a... The system comprises a film-tearing guide roller assembly 705 on the film-tearing base 700, a film-tearing head 704 slidably connected to the film-tearing base 700, a film-tearing cylinder 701 mounted on the film-tearing base 700, and a winding motor 706 mounted on the film-tearing base 700. The winding motor 706 is driven by the winding shaft, and the film-tearing cylinder 701 is elastically connected to the film-tearing head 704. The adhesive tape on the film-tearing unwinding shaft 703 passes through the bottom of the film-tearing head 704 and then passes through the film-tearing guide roller assembly 705 before winding onto the film-tearing winding shaft 702. This system utilizes adhesive tape to achieve automatic film peeling of the release film, enabling automated operation and a simple structure.

[0061] During operation, a PCBA is placed on the variable-pitch slide 202 and the variable-pitch positioning stage 204 respectively, with the pins of the PCBA facing downwards. The variable-pitch slide 202 slides and separates from the variable-pitch positioning stage 204. Then, the loading vacuum nozzle 23 places the PCBA on the variable-pitch slide 202 and the variable-pitch positioning stage 204 onto the pressure holding and transfer stage 226. The pressure holding and transfer stage 226 transfers the PCBA to directly below the pressure holding block 223. The pressure holding block 223 descends to stop the pins. The rolling scraper 222 rises to stop the pins and then moves horizontally with the rolling cylinder 227. The rolling scraper 222 straightens the pins into a horizontally extended state. The loading vacuum nozzle 23 transfers the PCBA after rolling to the conveyor stage 31 of the PCBA conveyor line 3. The conveyor corner cylinder 32 presses the PCBA firmly onto the conveyor stage 31. The foam lifting linear module 63 picks up a piece of foam from the foam stacking bin 61 and raises it to the upper limit. After the foam platform 64 rotates to a horizontal position, it moves directly below the foam picked up by the foam lifting linear module 63 and then places the foam onto the foam platform 64. The foam platform 64 then moves to the foam loading position, and the foam moving linear module 611 picks up the foam and gradually pushes it forward, ensuring that each piece of foam is conveyed beyond the front end of the carrier platform. The pressing block 617 extends and presses down on the top of the foremost foam. The foam platform 64 rotates, separating the foremost piece of foam from the rest. The separating claw 619 actuates, pushing the side of the separated foam to completely separate it from the rest. The foam attaching mechanical gripper 42 and the foam attaching vacuum suction head 41 jointly grip the separated foam and attach it to the PCBA surface on the conveyor table 31. The film-peeling assembly 70 moves to directly above the PCBA on the conveyor table 31, and then the film-peeling head 704 presses down, peeling off the centrifugal film from the top of the foam using tape. The multi-axis folding manipulator 503 transports the PCBA with foam attached from the conveyor table 31 to the buffer positioning table 52. The folding transfer vacuum suction cup 501 transfers the PCBA from the buffer positioning table 52 to the folding positioning table 511, and the folding clamping angle cylinder 517 presses the PCBA firmly onto the folding positioning table 511. The folding shaping mechanical gripper 515 controls the folding shaping claw 516 to retract and move above the needle. The folding plate 512 rotates, bending the needle upwards and then horizontally backwards. During the bending process, the needle always bends around the horizontally extending claw head of the folding shaping claw 516. After the needle bending is complete, the folding shaping mechanical gripper 515 opens, and the horizontally extending claw head of the folding shaping claw 516 is withdrawn from the bent part of the needle.

[0062] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automated equipment for foam bonding and external circuit shaping of PCBA, characterized in that, include: frame; PCBA loading assembly, which is mounted on the rack, is used to load PCBAs; The PCBA conveyor line is set on the frame and is used to transfer the PCBA supplied by the PCBA feeding assembly to the foam bonding station. A foam attaching assembly, which is mounted on the frame, is used to attach foam to the PCBA on the PCBA conveyor line; A bending assembly, which is disposed on the frame, is used to bend the pins on the PCBA; The PCBA loading assembly includes a multi-axis loading robot mounted on the frame and a loading vacuum nozzle mounted on the multi-axis loading robot. The foam attaching assembly includes a foam attaching frame mounted on the frame, a foam attaching robot mounted on the foam attaching frame, foam attaching mechanical grippers mounted on the foam attaching robot, and a foam attaching vacuum suction head mounted between the grippers of the foam attaching mechanical grippers. The gripping surface of the foam attaching mechanical grippers is provided with anti-slip texture. The folding line assembly includes a folding line transfer assembly disposed on the frame and a folding line mechanism disposed on the frame. The folding line transfer assembly is used to transfer the PCBA with foam attached to it onto the folding line mechanism. The folding mechanism includes a folding frame mounted on the machine frame, a folding positioning platform mounted on the top of the folding frame, a folding clamping angle cylinder mounted on one side of the folding positioning platform, a folding plate rotatably connected to the left and right tops of the folding frame, and a folding flipping drive mounted on the folding frame. The folding plate has a folding groove for accommodating needles. The folding flipping drive drives the folding plate to rotate, and the folding plate flips 180° from its starting position under the drive of the folding flipping drive. When the folding plate is in the starting position, it is horizontal and the opening of the folding groove faces upward. The folding frame is equipped with a folding shaping and avoidance cylinder, which has a folding shaping mechanical gripper and a folding shaping claw. The extension direction of the folding shaping and avoidance cylinder is parallel to the extension direction of the needle, and the movement direction of the folding shaping claw is horizontal and perpendicular to the extension direction of the needle.

2. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, The PCBA loading assembly further includes a loading pitch-changing mechanism, which includes a pitch-changing frame mounted on the frame, a pitch-changing slide rail mounted on the pitch-changing frame, a pitch-changing slide table slidably engaged with the pitch-changing slide rail, a pitch-changing positioning platform mounted on the pitch-changing frame at one end of the pitch-changing slide rail, and a pitch-changing cylinder mounted on the pitch-changing positioning platform. The cylinder rod of the pitch-changing cylinder is connected to the pitch-changing slide table. The top of the pitch-changing positioning platform and the top of the pitch-changing slide table are provided with a pitch-changing fixed positioning block and a pitch-changing movable positioning block for positioning the PCBA. The pitch-changing positioning platform and the pitch-changing slide table are provided with a clamping cylinder. The cylinder rod of the clamping cylinder is connected to the pitch-changing movable positioning block. The pitch-changing movable positioning block is disposed opposite to the pitch-changing fixed positioning block, and the pitch-changing movable positioning block is elastically connected to the clamping cylinder.

3. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 2, characterized in that, The PCBA loading assembly also includes a pressure holding assembly, which includes a pressure holding linear module mounted on the frame, a pressure holding frame mounted on the frame, a pressure holding cylinder mounted on the pressure holding frame, a pressure holding plate mounted on the cylinder rod of the pressure holding cylinder, a pressure holding block slidably connected to the pressure holding plate, and a pressure holding transfer platform mounted on the pressure holding linear module. A rolling cylinder is provided below the pressure holding transfer platform, and a rolling lifting cylinder is provided on the rolling cylinder. A rolling scraper is provided on the rolling lifting cylinder. The extension direction of the rolling cylinder points to the extension direction of the needle. The bottom surface of the pressure holding block is a plane. The pressure holding transfer platform and the loading pitch mechanism are located within the effective working range of the loading multi-axis robot.

4. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, The PCBA conveyor line includes a conveyor linear module, a conveyor table disposed on the conveyor linear module, and a conveyor corner cylinder disposed on the side of the conveyor table. The top surface of the conveyor table is provided with a conveyor positioning surface for positioning the PCBA.

5. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, It also includes a foam supply assembly, which includes a foam supply linear module mounted on the frame, a foam supply frame mounted on the foam supply linear module, a foam platform horizontally rotatably connected to the foam supply frame, a pressing frame mounted on the foam supply frame, a pressing cylinder mounted on the pressing frame, a foam stacking bin mounted on the frame, a foam lifting linear module mounted on the frame, a foam transfer suction cup mounted on the foam lifting linear module, and a foam moving frame mounted on the frame. The foam moving linear module is placed on the foam moving linear module, the foam moving vacuum nozzle is set on the foam moving linear module, and the platform flipping drive is set on the foam supply rack. The pressing cylinder is equipped with a pressing block. The foam platform is a vacuum adsorption platform. The front end of the foam platform is provided with a peeling surface. A separation claw is rotatably connected to the foam platform. A separation drive is provided at the bottom of the foam platform. The separation drive is used to drive the separation claw to rotate. The platform flipping drive is used to drive the foam platform to rotate around a horizontal axis.

6. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 5, characterized in that, The platform tilting drive includes a foam tilting cylinder mounted on the foam supply rack and a platform crank connected to the rotation axis of the foam platform. The end of the platform crank is hinged to the cylinder rod of the foam tilting cylinder. The separation drive includes a separation cylinder mounted at the bottom of the foam platform and a separation crank connected to the rotation axis of the separation claw. The end of the separation crank is hinged to the cylinder rod of the separation cylinder.

7. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, The polygonal line assembly further includes a buffer positioning stage, and the polygonal line transfer assembly includes a polygonal line transfer linear module, a polygonal line transfer cylinder disposed on the polygonal line transfer linear module, a polygonal line transfer vacuum suction cup disposed on the polygonal line transfer cylinder, a polygonal line multi-axis robot disposed on the frame, a polygonal line multi-axis cylinder disposed on the polygonal line multi-axis robot, a polygonal line multi-axis vacuum suction cup disposed on the polygonal line multi-axis cylinder, and a polygonal line transfer guide camera disposed on the polygonal line multi-axis robot.

8. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, The folded line flipping drive includes a folded line cylinder mounted on the folded line frame, a folded line rack connected to the folded line cylinder, and a folded line gear mounted on the rotating shaft of the folded line plate, the folded line gear meshing with the folded line rack.

9. The automated equipment for foam bonding and external circuit shaping of PCBA according to claim 1, characterized in that, It also includes a film-tearing unit, which includes a film-tearing frame mounted on the frame, a film-tearing linear module mounted on the film-tearing frame, and a film-tearing assembly mounted on the film-tearing linear module. The film-tearing assembly includes a film-tearing base mounted on the film-tearing linear module, a film-tearing take-up shaft rotatably mounted on the film-tearing base, a film-tearing unwinding shaft rotatably mounted on the film-tearing base, a film-tearing guide wheel assembly mounted on the film-tearing base, a film-tearing head slidably connected to the film-tearing base, a film-tearing cylinder mounted on the film-tearing base, and a take-up motor mounted on the film-tearing base. The take-up motor is driven and connected to the take-up shaft, and the film-tearing cylinder is elastically connected to the film-tearing head. The tape on the film-tearing unwinding shaft passes through the bottom of the film-tearing head and then passes through the film-tearing guide wheel assembly to wind around the film-tearing take-up shaft.

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