Foam pasting and external circuit shaping automation equipment for PCBA (Printed Circuit Board Assembly)

Abstract

The invention relates to automatic foam pasting and external line shaping equipment for a PCBA. The automatic foam pasting and external line shaping equipment comprises a rack, a PCBA feeding assembly, a PCBA conveying line, a foam pasting assembly and a line folding assembly. The PCBA feeding assembly comprises a feeding multi-axis mechanical arm and a feeding vacuum suction nozzle. The foam attaching assembly comprises a foam attaching frame, a foam attaching mechanical arm, a foam attaching mechanical clamping jaw and a foam attaching vacuum suction head. The line folding assembly comprises a line folding transfer assembly and a line folding mechanism; the line folding mechanism comprises a line folding frame, a line folding positioning table, a line folding fixed clamping corner air cylinder, a line folding plate and a line folding turnover driving piece, and the line folding turnover driving piece drives the line folding plate to rotate. The foam attaching manipulator of the foam attaching assembly is matched with the PCBA conveying line to achieve automatic foam attaching on the PCBA, and the efficiency is high; according to the line folding mechanism, the pins are automatically bent into the L shape through the overturned line folding plate, the foam is clamped between the pins and the PCBA, and the foam cannot be damaged by interference of the line folding plate in the whole process.

Description

Technical Field

[0001] The invention relates to PCBA production equipment, and in particular to a PCBA foam pasting and external circuit shaping automation equipment. Background Art

[0002] PCBA is an important component of existing integrated circuits and is widely used. In order to facilitate the connection between PCBA components and adjacent components, pins are usually set on the PCBA board. In order to connect, the pins need to be bent into different shapes, and the U-shaped pin bending method is a common method. The existing pin U-shaped bending method has low bending accuracy and cannot attach foam between the bent pins and the PCBA. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide an automated device for PCBA foam pasting and external circuit shaping.

[0004] The technical solution adopted by the present invention to solve its technical problem is: A PCBA foam pasting and external circuit shaping automation equipment, comprising: frame; A PCBA loading assembly, which is arranged on the frame and is used to provide PCBA loading; A PCBA conveyor line, which is arranged on the frame and is used to transfer the PCBA supplied from the PCBA loading assembly to the foam pasting station; A foam pasting component, which is arranged on the frame and is used to paste foam on the PCBA on the PCBA conveyor line; A folding line assembly, which is arranged on the frame and is used to bend the pins on the PCBA; The PCBA loading assembly includes a loading multi-axis manipulator arranged on the frame, and a loading vacuum nozzle arranged on the loading multi-axis manipulator; The foam sticking assembly comprises a foam sticking frame arranged on the frame, a foam sticking manipulator arranged on the foam sticking frame, a foam sticking mechanical clamp arranged on the foam sticking manipulator, and a foam sticking vacuum suction head arranged between the clamping jaws of the foam sticking mechanical clamping jaw, and the clamping surface of the foam sticking mechanical clamping jaw is provided with anti-slip grooves; The folding line assembly includes a folding line transfer assembly arranged on the frame and a folding line mechanism arranged on the frame, and the folding line transfer assembly is used to transfer the PCBA with foam attached to the folding line mechanism; The folding line mechanism includes a folding line frame arranged on the frame, a folding line positioning platform arranged on the top of the folding line frame, a folding line fixed clamp angle cylinder arranged on one side of the folding line positioning platform, a folding line plate rotatably connected to the left and right tops of the folding line frame, and a folding line flipping drive member arranged on the folding line frame, the folding line plate is provided with a folding line groove for accommodating stitches, the folding line flipping drive member drives the folding line plate to rotate, and the folding line plate is flipped 180° from the starting position under the drive of the folding line flipping drive member, and the folding line plate is in a horizontal state when in the starting position and the folding line groove opens upward.

[0005] As a further improvement of the present design, the PCBA feeding assembly further includes a feeding pitch-changing mechanism, which includes a pitch-changing frame arranged on the frame, a pitch-changing slide rail arranged on the pitch-changing frame, a pitch-changing slide table slidably matched with the pitch-changing slide rail, a pitch-changing positioning platform arranged on the pitch-changing frame at one end of the pitch-changing slide rail, and a pitch-changing cylinder arranged 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 both 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 fixed clamping cylinder. The cylinder rod of the fixed clamping cylinder is connected to the pitch-changing movable positioning block. The pitch-changing movable positioning block is arranged opposite to the pitch-changing fixed positioning block. The pitch-changing movable positioning block is elastically connected to the pitch-changing fixed clamping cylinder. The pitch-changing positioning platform and the pitch-changing slide table are provided with a photoelectric detection switch for detecting the presence or absence of PCBA.

[0006] As a further improvement of the present design, the PCBA feeding assembly also includes a pressure-maintaining assembly, which includes a pressure-maintaining linear module arranged on the frame, a pressure-maintaining frame arranged on the frame, a pressure-maintaining cylinder arranged on the pressure-maintaining frame, a pressure-maintaining plate arranged on the cylinder rod of the pressure-maintaining cylinder, a pressure-maintaining block slidably connected to the pressure-maintaining plate, and a pressure-maintaining transfer platform arranged on the pressure-maintaining linear module; a wire rolling cylinder is provided under the pressure-maintaining transfer platform, a wire rolling lifting cylinder is provided on the wire rolling cylinder, a wire rolling scraper is provided on the wire rolling lifting cylinder, the extension direction of the wire rolling cylinder points to the extension direction of the pin, the bottom surface of the pressure-maintaining block is a plane, and the pressure-maintaining transfer platform and the feeding distance changing mechanism are located within the effective working range of the feeding multi-axis manipulator.

[0007] As a further improvement of the present design, the PCBA conveyor line includes a conveyor linear module, a conveyor platform disposed on the conveyor linear module, and a conveyor angle cylinder disposed on the side of the conveyor platform. The top surface of the conveyor platform is provided with a conveyor positioning surface for positioning the PCBA. The chuck of the angle cylinder is pressed against the top surface of the PCBA during clamping.

[0008] As a further improvement of the present design, it also includes a foam supply component, which includes a foam supply linear module arranged on the frame, a foam supply rack arranged on the foam supply linear module, a foam carrier horizontally rotatably connected to the foam supply rack, a cotton pressing rack arranged on the foam supply rack, a cotton pressing cylinder arranged on the cotton pressing rack, a foam stacking bin arranged on the frame, a foam lifting linear module arranged on the frame, a foam transfer suction cup arranged on the foam lifting linear module, and a foam carrier arranged on the frame. A foam moving frame, a foam moving linear module arranged on the foam moving frame, a foam moving vacuum nozzle arranged on the foam moving linear module, and a platform flipping driving member arranged on the foam supply frame. The cotton pressing cylinder is provided with a cotton 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 driving member is provided at the bottom of the foam platform. The separation driving member is used to drive the separation claw to rotate. The platform flipping driving member is used to drive the foam platform to rotate around a horizontal axis. The end of the separation claw abuts against the separation surface of the separated foam, the top of the separated foam abuts against the cotton pressing block, and the bottom of the separated foam abuts against the peeling surface. When the separated foam is in a separated state, the peeling surface is in a horizontal state.

[0009] As a further improvement of the present design, the platform flipping driving member includes a foam flipping cylinder arranged on the foam supply rack, a platform crank connected to the rotation axis of the foam platform, and the end of the platform crank is hinged to the cylinder rod of the foam flipping cylinder. The separation driving member includes a separation cylinder arranged at the bottom of the foam platform, a separation crank connected to the rotation axis of the separation claw, and the end of the separation crank is hinged to the cylinder rod of the separation cylinder. A foam fixed positioning strip is provided on one side of the foam platform, and a foam movable positioning strip is provided on the other side of the foam platform. A foam positioning cylinder is provided on the foam platform, and the foam positioning cylinder is connected to the foam movable positioning strip. The foam movable positioning strip is perpendicular to the moving path of the foam on the foam platform under the drive of the foam positioning cylinder.

[0010] As a further improvement of the present design, the folding line component also includes a cache positioning table, and the folding line transfer component includes a folding line transfer linear module, a folding line transfer cylinder arranged on the folding line transfer linear module, a folding line transfer vacuum suction cup arranged on the folding line transfer cylinder, a folding line multi-axis manipulator arranged on the frame, a folding line multi-axis cylinder arranged on the folding line multi-axis manipulator, a folding line multi-axis vacuum suction cup arranged on the folding line multi-axis cylinder, and a folding line transfer guide camera arranged on the folding line multi-axis manipulator.

[0011] As a further improvement of the present design, the fold line flipping driving component includes a fold line cylinder arranged on the fold line frame, a fold line rack connected to the fold line cylinder, a fold line gear is provided on the rotating shaft of the fold line plate, and the fold line gear is meshed with the fold line rack.

[0012] As a further improvement of the present design, the folding line frame is provided with a folding line shaping avoidance cylinder, the folding line shaping avoidance cylinder is provided with a folding line shaping mechanical clamp, the folding line shaping mechanical clamp is provided with a folding line shaping claw, the extension direction of the folding line shaping avoidance cylinder is parallel to the extension direction of the stitch, and the moving direction of the folding line shaping claw is horizontal and perpendicular to the extension direction of the stitch.

[0013] As a further improvement of the present design, the film tearing unit includes a film tearing frame arranged on the frame, a film tearing linear module arranged on the film tearing frame, and a film tearing assembly arranged on the film tearing linear module. The film tearing assembly includes a film tearing base arranged on the film tearing linear module, a film tearing winding shaft rotatably arranged on the film tearing base, a film tearing unwinding shaft rotatably arranged on the film tearing base, a film tearing guide wheel group arranged on the film tearing base, a film tearing head slidably connected to the film tearing base up and down, a film tearing cylinder arranged on the film tearing base, and a winding motor arranged on the film tearing base. The winding motor is drivingly connected to the winding shaft, the film tearing cylinder is elastically connected to the film tearing head, and 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 group and is wound around the film tearing winding shaft.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes automatic foam attachment to PCBA by cooperating with the PCBA conveyor line through the foam attachment robot on the foam attachment component, and the automatic operation efficiency is high; the folding mechanism utilizes the flipped folding plate to automatically bend the pin into a U shape, and the foam is sandwiched between the pin and the PCBA. The folding plate will not damage the foam due to interference during the whole process, and the folding groove can also improve the bending quality of the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the PCBA loading assembly of the present invention.

[0018] Figure 3 It is a three-dimensional schematic diagram of the combination of the PCBA conveyor line and the foam-attached component of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the folding line component of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the folding line mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the foam supply component of the present invention.

[0022] Figure 7 It is a front schematic diagram of the foam carrier and its mounting components of the present invention.

[0023] Figure 8 The present invention is Figure 7 Schematic diagram of the cross section at the AA position.

[0024] Fig. 9 It is a three-dimensional structural schematic diagram of the folding line mechanism of the present invention.

[0025] Fig.10 It is a front schematic diagram of the film tearing assembly of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the film tearing assembly of the present invention.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of a PCBA board processed by the equipment of the present invention.

[0028] In the figure, 1, rack; 2, PCBA feeding assembly; 20, feeding pitch-changing mechanism; 200, pitch-changing frame; 201, pitch-changing slide rail; 202, pitch-changing slide; 203, pitch-changing cylinder; 204, pitch-changing positioning platform; 205, pitch-changing fixed positioning block; 206, pitch-changing movable positioning block; 207, fixed clamping cylinder; 208, photoelectric detection switch; 21, feeding multi-axis manipulator; 22, pressure-keeping assembly; 220, pressure-keeping linear module; 221, pressure-keeping cylinder; 222, rolling scraper; 223, pressure-keeping block; 224, pressure-keeping frame; 225, pressure-keeping plate; 226, pressure-keeping transfer platform; 227, rolling cylinder; 228, rolling lifting cylinder; 23, feeding vacuum nozzle; 3, PCBA conveyor line; 30, conveying linear module; 31, conveying table; 32, conveying corner cylinder; 4, foam pasting component; 40, foam pasting rack; 41, foam pasting vacuum suction head; 42, foam pasting mechanical gripper; 43, foam pasting manipulator; 5, folding line component; 50, folding line transfer component; 500, folding line transfer linear module; 501, folding line transfer vacuum suction cup; 502, folding line transfer cylinder; 503, folding line multi-axis manipulator; 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 rack; 511, folding line positioning table; 512, folding line plate; 5120, folding line groove ; 513, fold line flip drive; 5130, fold line cylinder; 5131, fold line rack; 5132, fold line gear; 514, fold line shaping avoidance cylinder; 515, fold line shaping mechanical clamp; 516, fold line shaping claw; 517, fold line fixed clamp angle cylinder; 52, cache positioning platform; 6, foam supply component; 60, foam supply linear module; 61, foam stacking bin; 62, foam transfer suction cup; 63, foam lifting linear module; 64, foam carrier; 65, foam step frame; 66, carrier flip drive; 660, foam flip cylinder; 661, carrier crank; 67, cotton pressing frame; 68, cotton pressing cylinder; 69, separation drive; 690, separation gas Cylinder; 691, separation crank; 610, foam supply rack; 611, foam moving linear module; 612, foam moving vacuum nozzle; 613, foam movable positioning strip; 614, foam positioning cylinder; 615, foam fixed positioning strip; 616, separated foam; 617, cotton pressing block; 618, peeling surface; 619, separation claw; 7, film tearing unit; 70, film tearing assembly; 700, film tearing base; 701, film tearing cylinder; 702, film tearing reel; 703, film tearing unreel; 704, film tearing head; 705, film tearing guide wheel group; 706, rewinding motor; 71, film tearing linear module; 72, film tearing rack; 8, PCBA; 80, foam; 81, pin;. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0030] Example: See Figure 1 This embodiment provides a PCBA foam pasting and external line shaping automation equipment, including: Rack 1; A PCBA feeding assembly 2, which is arranged on the frame 1 and is used to provide PCBA feeding; A PCBA conveyor line 3, which is arranged on the frame 1 and is used to transfer the PCBA supplied from the PCBA loading assembly 2 to the foam pasting station; A foam pasting component 4, which is arranged on the frame 1 and is used to paste foam 80 on the PCBA on the PCBA conveyor line 3; A folding line assembly 5, which is disposed on the frame 1 and is used to bend the pins 81 on the PCBA; The PCBA loading assembly 2 includes a loading multi-axis manipulator 21 disposed on the frame 1 and a loading vacuum nozzle 23 disposed on the loading multi-axis manipulator 21; The foam attaching component 4 comprises a foam attaching frame 40 arranged on the frame 1, a foam attaching manipulator 43 arranged on the foam attaching frame 40, a foam attaching mechanical clamp 42 arranged on the foam attaching manipulator 43, and a foam attaching vacuum suction head 41 arranged between the clamping jaws of the foam attaching mechanical clamp 42, and the clamping surface of the foam attaching mechanical clamp 42 is provided with anti-skid patterns; the foam attaching vacuum suction head 41 is used to apply pressure to the foam 80 when attaching the foam 80, and at the same time, the accuracy of clamping the foam 80 can be improved. The anti-skid patterns effectively prevent the foam 80 from loosening and shifting.

[0031] 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 the foam 80 attached to the folding line mechanism 51. The folding line mechanism 51 includes a folding line frame 510 arranged on the frame 1, a folding line positioning platform 511 arranged on the top of the folding line frame 510, a folding line fixed clamp angle cylinder 517 arranged on one side of the folding line positioning platform 511, a folding line plate 512 rotatably connected to the left and right tops of the folding line frame 510, and a folding line flipping driving member 513 arranged on the folding line frame 510, the folding line plate 512 is provided with a folding line groove 5120 for accommodating the stitches 81, the folding line flipping driving member 513 drives the folding line plate 512 to rotate, and the folding line plate 512 is flipped 180° from the starting position under the drive of the folding line flipping driving member 513, and the folding line plate 512 is in a horizontal state when in the starting position and the folding line groove 5120 opens upward.

[0032] The foam attaching robot 43 on the foam attaching component 4 cooperates with the PCBA conveyor line 3 to realize automatic foam attaching to PCBA8, and the automatic operation efficiency is high; the folding line mechanism 51 uses the flipped folding line plate 512 to automatically bend the pin 81 into a U shape, and the foam is clamped between the pin 81 and the PCBA8. The folding line plate 512 will not damage the foam due to interference during the whole process. At the same time, the folding line groove 5120 can also improve the bending quality of the pin 81.

[0033] Since the PCBAs supplied by the PCBA supply mechanism are closely arranged, when foam is applied to multiple PCBAs, interference will occur between the mechanisms. The PCBA feeding assembly 2 also includes a feeding distance changing mechanism 20, which is used to properly control the distance between PCBAs and improve production efficiency. The feeding distance changing mechanism 20 includes a distance changing frame 200 arranged on the frame 1, a distance changing slide rail 201 arranged on the distance changing frame 200, a distance changing slide table 202 slidably matched with the distance changing slide rail 201, a distance changing positioning platform 204 arranged on the distance changing frame 200 at one end of the distance changing slide rail 201, and a distance changing cylinder 203 arranged on the distance changing positioning platform 204, wherein the cylinder rod of the distance changing cylinder 203 is connected to the distance changing slide table 202. The distance changing cylinder 203 is used to push the distance changing slide table 202 to achieve distance changing, which has a simple structure and high efficiency.

[0034] The top of the variable pitch positioning platform 204 and the top of the variable pitch slide 202 are both provided with a variable pitch fixed positioning block 205 and a variable pitch movable positioning block 206 for positioning the PCBA. The variable pitch positioning platform 204 and the variable pitch slide 202 are provided with a fixed clamping cylinder 207. The cylinder rod of the fixed clamping cylinder 207 is connected to the variable pitch movable positioning block 206. The variable pitch movable positioning block 206 is arranged opposite to the variable pitch fixed positioning block 205. The variable pitch movable positioning block 206 is elastically connected to the variable pitch fixed clamping cylinder 207. The release and positioning of the PCBA are achieved by elastically connecting the variable pitch movable positioning block 206 and the variable pitch fixed positioning block 205. The variable pitch positioning platform 204 and the variable pitch slide 202 are provided with a photoelectric detection switch 208 for detecting the presence or absence of the PCBA.

[0035] In order to bend the downwardly folded pin 81 into a horizontal direction and facilitate subsequent folding lines, the PCBA loading component 2 also includes a pressure-maintaining component 22, which includes a pressure-maintaining linear module 220 arranged on the frame 1, a pressure-maintaining frame 224 arranged on the frame 1, a pressure-maintaining cylinder 221 arranged on the pressure-maintaining frame 224, a pressure-maintaining plate 225 arranged on the cylinder rod of the pressure-maintaining cylinder 221, a pressure-maintaining block 223 slidably connected to the pressure-maintaining plate 225, and a pressure-maintaining transfer platform 226 arranged on the pressure-maintaining linear module 220, a rolling cylinder 227 is provided below the pressure-maintaining transfer platform 226, a rolling cylinder 227 is provided on the rolling cylinder 227, a rolling lifting cylinder 228 is provided on the rolling lifting cylinder 228, a rolling scraper 222 is provided on the rolling cylinder 227, the extension direction of the rolling cylinder 227 points to the extension direction of the pin 81, and the bottom surface of the pressure-maintaining block 223 is a plane. The wire rolling scraper 222 cooperates with the pressure-maintaining plate 225 to straighten the pins. The pressure-maintaining transfer platform 226 and the material feeding variable distance mechanism 20 are located within the effective working range of the material feeding multi-axis manipulator 21.

[0036] In order to facilitate the precise control of the transmission of PCBA between various workstations and simplify the structure of PCBA conveyor line 3, the PCBA conveyor line 3 includes a conveying linear module 30, a conveying platform 31 arranged on the conveying linear module 30, and a conveying angle cylinder 32 arranged on the side of the conveying platform 31. The top surface of the conveying platform 31 is provided with a conveying positioning surface for positioning the PCBA. The chuck of the conveying angle cylinder 32 is pressed against the top surface of the PCBA during clamping. The conveying angle cylinder 32 is convenient for preventing the PCBA from shifting on the conveying platform 31.

[0037] In order to further improve the automation rate, the PCBA foam folding line automation equipment also includes a foam supply component 6, which includes a foam supply linear module 60 arranged on the frame 1, a foam supply rack 610 arranged on the foam supply linear module 60, a foam carrier 64 horizontally connected to the foam supply rack 610, a cotton pressing rack 67 arranged on the foam supply rack 1, a cotton pressing cylinder 68 arranged on the cotton pressing rack 67, a foam stacking bin 61 arranged on the frame 1, a foam lifting linear module 63 arranged on the frame 1, a foam transfer suction cup 62 arranged on the foam lifting linear module 63, and a foam carrier 64 arranged on the frame 1. The foam moving frame 65, the foam moving linear module 611 arranged on the foam moving frame 65, the foam moving vacuum suction nozzle 612 arranged on the foam moving linear module 611, the carrier flipping driving member 66 arranged on the foam supply frame 610, the cotton pressing cylinder 68 is provided with a cotton pressing block 617, the foam carrier 64 is a vacuum adsorption platform, the front end of the foam carrier 64 is provided with a peeling surface 618, the foam carrier 64 is rotatably connected with a separation claw 619, the bottom of the foam carrier 64 is provided with a separation driving member 69, the separation driving member 69 is used to drive the separation claw 619 to rotate, and the carrier flipping driving member 66 is used to drive the foam carrier 64 to rotate around the horizontal axis. The flipped foam carrier 64 is used to cooperate with the cotton pressing block 617 to allow the supplied foam to be closely arranged, thereby improving the utilization rate of the foam, and the foam only needs to be cut on the foam board. In order to further separate the foam, the end of the separation claw 619 abuts against the separation surface of the separated foam 616 to push the separated foam. The top of the separated foam 616 abuts against the cotton pressing block 617, and the bottom of the separated foam 616 abuts against the stripping surface 618. When the separated foam 616 is in a separated state, the stripping surface 618 is in a horizontal state.

[0038] In order to simplify the structure and improve work efficiency, the carrier flipping drive 66 includes a foam flipping cylinder 660 arranged on the foam supply rack 610, and a carrier crank 661 connected to the rotation axis of the foam carrier 64, and the end of the carrier crank 661 is hinged to the cylinder rod of the foam flipping cylinder 660. The separation drive 69 includes a separation cylinder 690 arranged at the bottom of the foam carrier 64, and a separation crank 691 connected to the rotation axis of the separation claw 619, and the end of the separation crank 691 is hinged to the cylinder rod of the separation cylinder 690. In order to facilitate the positioning of the foam and facilitate the subsequent separation of the foam, a foam fixed positioning strip 615 is provided on one side of the foam carrier 64, a foam movable positioning strip 613 is provided on the other side of the foam carrier 64, and a foam positioning cylinder 614 is provided on the foam carrier 64. The foam positioning cylinder 614 is connected to the foam movable positioning strip 613, and the foam movable positioning strip 613 is perpendicular to the moving path of the foam on the foam carrier 64 under the drive of the foam positioning cylinder 614. The foam is guided after it moves into the foam carrier 64.

[0039] In order to further improve efficiency and shorten the waiting time between various mechanisms, the fold line component 5 also includes a cache positioning table 52, and the fold line transfer component 50 includes a fold line transfer linear module 500, a fold line transfer cylinder 502 arranged on the fold line transfer linear module 500, a fold line transfer vacuum suction cup 501 arranged on the fold line transfer cylinder 502, a fold line multi-axis manipulator 503 arranged on the frame 1, a fold line multi-axis cylinder 504 arranged on the fold line multi-axis manipulator 503, a fold line multi-axis vacuum suction cup 505 arranged on the fold line multi-axis cylinder 504, and a fold line transfer guide camera 506 arranged on the fold line multi-axis manipulator 503.

[0040] The folding line turning driving member 513 includes a folding line cylinder 5130 disposed on the folding line frame 510, a folding line rack 5131 connected to the folding line cylinder 5130, and a folding line gear 5132 is disposed on the rotating shaft of the folding line plate 512, and the folding line gear 5132 is meshed with the folding line rack 5131. The transmission mechanism using a gear rack has a simple structure, high transmission efficiency, and precise transmission.

[0041] In order to improve the bending quality of the pin bending position, the folding frame 510 is provided with a folding line shaping avoidance cylinder 514, the folding line shaping avoidance cylinder 514 is provided with a folding line shaping mechanical clamp 515, the folding line shaping mechanical clamp 515 is provided with a folding line shaping claw 516, the extension direction of the folding line shaping avoidance cylinder 514 is parallel to the extension direction of the pin, and the movement direction of the folding line shaping claw 516 is horizontal and perpendicular to the extension direction of the pin. The folding line shaping mechanical clamp 515 is convenient for preventing the folding line shaping claw 516 from interfering with the pin when taking and placing the PCBA.

[0042] In order to facilitate automatic tearing off of the release film on the top of the foam and prevent the subsequent needle from being unable to tear the film after bending, the film tearing unit 7 includes a film tearing frame 72 arranged on the frame 1, a film tearing linear module 71 arranged on the film tearing frame 72, and a film tearing assembly 70 arranged on the film tearing linear module 71. The film tearing assembly 70 includes a film tearing base 700 arranged on the film tearing linear module 71, a film tearing reel 702 rotatably arranged on the film tearing base 700, a film tearing unwinding shaft 703 rotatably arranged on the film tearing base 700, and a film tearing assembly 700 arranged on the film tearing linear module 71. The film-tearing guide wheel group 705 on the film-tearing base 700, the film-tearing head 704 slidably connected to the film-tearing base 700, the film-tearing cylinder 701 arranged on the film-tearing base 700, and the winding motor 706 arranged on the film-tearing base 700, the winding motor 706 is connected to the winding shaft, the film-tearing cylinder 701 is elastically connected to the film-tearing head 704, and the 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 wheel group 705 and is wound on the film-tearing winding shaft 702. The release film is automatically torn by the tape, which is automated and has a simple structure.

[0043] During operation, a PCBA is placed on the variable pitch slide 202 and the variable pitch positioning platform 204 respectively, and the pins of the PCBA are facing downwards. The variable pitch slide 202 slides and separates from the variable pitch positioning platform 204. Then, the loading vacuum suction nozzle 23 places the PCBA on the variable pitch slide 202 and the variable pitch positioning platform 204 onto the pressure-maintaining transfer platform 226. The pressure-maintaining transfer platform 226 transfers the PCBA to the bottom of the pressure-maintaining block 223. The pressure-maintaining block 223 descends to stop the pins. The wire rolling scraper 222 rises to stop the pins and then moves horizontally with the wire rolling cylinder 227. The wire rolling scraper 222 straightens the pins into a horizontally extended state. The loading vacuum suction nozzle 23 transfers the PCBA after wire rolling to the conveying platform 31 of the PCBA conveying line 3. The conveying angle cylinder 32 presses the PCBA onto the conveying platform 31. The foam lifting linear module 63 absorbs a piece of foam in the foam stacking bin 61 and lifts it to the upper limit. The foam carrier 64 rotates to a horizontal position and moves to the position directly below the foam absorbed by the foam lifting linear module 63, and then places the foam on the foam carrier 64. Then the foam carrier 64 moves to the foam loading position, and the foam moving linear module 611 absorbs the foam and gradually pushes the foam forward to ensure that each time a piece of foam is transported beyond the front end of the film carrier, the cotton pressing block 617 extends and presses the top of the foam on the front side, the foam carrier 64 rotates, the frontmost piece of foam is separated from the rest of the foam, and the separation claw 619 moves to push the side of the separated foam so that the separated foam is completely separated from the rest of the foam. The foam attachment mechanical clamp 42 and the foam attachment vacuum suction head 41 jointly clamp the separated foam and attach the foam to the PCBA surface on the conveying table 31. The film tearing assembly 70 moves to the top of the PCBA on the conveying platform 31, and then the film tearing head 704 is pressed down to peel off the centrifugal film on the top of the foam through the tape. The fold line multi-axis manipulator 503 carries the PCBA with the foam on the conveying platform 31 to the cache positioning platform 52. The fold line transfer vacuum suction cup 501 transfers the PCBA on the cache positioning platform 52 to the fold line positioning platform 511, and the fold line fixed clamping angle cylinder 517 presses the PCBA on the fold line positioning platform 511. The fold line shaping mechanical clamp 515 controls the fold line shaping claw 516 to shrink and move to the top of the pin, and the fold line plate 512 rotates to bend the pin upward and then bend it horizontally backward. During the bending process, the pin is always bent around the horizontally extending claw head of the fold line shaping claw 516. After the pin bending is completed, the fold line shaping mechanical clamp 515 is opened, and the horizontally extending claw head of the fold line shaping claw 516 is pulled out from the pin bending place.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A PCBA foam pasting and external circuit shaping automation equipment, characterized in that: include: frame; A PCBA loading assembly, which is arranged on the frame and is used to provide PCBA loading; A PCBA conveyor line, which is arranged on the frame and is used to transfer the PCBA supplied from the PCBA loading assembly to the foam pasting station; A foam pasting component, which is arranged on the frame and is used to paste foam on the PCBA on the PCBA conveyor line; A folding line assembly, which is arranged on the frame and is used to bend the pins on the PCBA; The PCBA loading assembly includes a loading multi-axis manipulator arranged on the frame, and a loading vacuum nozzle arranged on the loading multi-axis manipulator; The foam sticking assembly comprises a foam sticking frame arranged on the frame, a foam sticking manipulator arranged on the foam sticking frame, a foam sticking mechanical clamp arranged on the foam sticking manipulator, and a foam sticking vacuum suction head arranged between the clamping jaws of the foam sticking mechanical clamping jaw, and the clamping surface of the foam sticking mechanical clamping jaw is provided with anti-slip grooves; The folding line assembly includes a folding line transfer assembly arranged on the frame and a folding line mechanism arranged on the frame, and the folding line transfer assembly is used to transfer the PCBA with foam attached to the folding line mechanism; The folding line mechanism includes a folding line frame arranged on the frame, a folding line positioning platform arranged on the top of the folding line frame, a folding line fixed clamp angle cylinder arranged on one side of the folding line positioning platform, a folding line plate rotatably connected to the left and right tops of the folding line frame, and a folding line flipping drive member arranged on the folding line frame, the folding line plate is provided with a folding line groove for accommodating stitches, the folding line flipping drive member drives the folding line plate to rotate, and the folding line plate is flipped 180° from the starting position under the drive of the folding line flipping drive member, and the folding line plate is in a horizontal state when in the starting position and the folding line groove opens upward.

2. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1 is characterized in that: The PCBA feeding assembly also includes a feeding pitch-changing mechanism, which includes a pitch-changing frame arranged on the frame, a pitch-changing slide rail arranged on the pitch-changing frame, a pitch-changing slide table slidably matched with the pitch-changing slide rail, a pitch-changing positioning platform arranged on the pitch-changing frame at one end of the pitch-changing slide rail, and a pitch-changing cylinder arranged 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 both 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 fixed clamping cylinder. The cylinder rod of the fixed clamping cylinder is connected to the pitch-changing movable positioning block. The pitch-changing movable positioning block is arranged opposite to the pitch-changing fixed positioning block, and the pitch-changing movable positioning block is elastically connected to the pitch-changing fixed clamping cylinder.

3. The PCBA foam pasting and external circuit shaping automation equipment according to claim 2 is characterized in that: The PCBA feeding assembly also includes a pressure-keeping assembly, which includes a pressure-keeping linear module arranged on the frame, a pressure-keeping frame arranged on the frame, a pressure-keeping cylinder arranged on the pressure-keeping frame, a pressure-keeping plate arranged on the cylinder rod of the pressure-keeping cylinder, a pressure-keeping block slidably connected to the pressure-keeping plate, and a pressure-keeping transfer platform arranged on the pressure-keeping linear module. A wire rolling cylinder is provided below the pressure-keeping transfer platform, a wire rolling lifting cylinder is provided on the wire rolling cylinder, a wire rolling scraper is provided on the wire rolling lifting cylinder, the extending direction of the wire rolling cylinder points to the extending direction of the pin, the bottom surface of the pressure-keeping block is a plane, and the pressure-keeping transfer platform and the feeding distance changing mechanism are located within the effective working range of the feeding multi-axis manipulator.

4. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1 is characterized in that: The PCBA conveying line includes a conveying linear module, a conveying platform arranged on the conveying linear module, and a conveying angle cylinder arranged on the side of the conveying platform. The top surface of the conveying platform is provided with a conveying positioning surface for positioning the PCBA.

5. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1 is characterized in that: The machine also includes a foam supply component, which includes a foam supply linear module arranged on the frame, a foam supply rack arranged on the foam supply linear module, a foam carrier horizontally rotatably connected to the foam supply rack, a cotton pressing rack arranged on the foam supply rack, a cotton pressing cylinder arranged on the cotton pressing rack, a foam stacking bin arranged on the frame, a foam lifting linear module arranged on the frame, a foam transfer suction cup arranged on the foam lifting linear module, a foam stepping rack arranged on the frame, A foam moving linear module is arranged on the foam moving linear module, a foam moving vacuum suction nozzle is arranged on the foam moving linear module, and a carrier flipping driving component is arranged on the foam supply rack. The cotton pressing cylinder is provided with a cotton pressing block, the foam carrier is a vacuum adsorption platform, a peeling surface is provided at the front end of the foam carrier, a separation claw is rotatably connected to the foam carrier, a separation driving component is provided at the bottom of the foam carrier, the separation driving component is used to drive the separation claw to rotate, and the carrier flipping driving component is used to drive the foam carrier to rotate around a horizontal axis.

6. The PCBA foam pasting and external circuit shaping automation equipment according to claim 5 is characterized in that: The platform flipping drive component includes a foam flipping cylinder arranged on the foam supply rack, a platform crank connected to the rotation axis of the foam platform, and the end of the platform crank is hinged to the cylinder rod of the foam flipping cylinder. The separation drive component includes a separation cylinder arranged at the bottom of the foam carrier, a separation crank connected to the rotation axis of the separation claw, and the end of the separation crank is hinged to the cylinder rod of the separation cylinder.

7. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1 is characterized in that: The fold line component also includes a cache positioning table, and the fold line transfer component includes a fold line transfer linear module, a fold line transfer cylinder arranged on the fold line transfer linear module, a fold line transfer vacuum suction cup arranged on the fold line transfer cylinder, a fold line multi-axis manipulator arranged on the frame, a fold line multi-axis cylinder arranged on the fold line multi-axis manipulator, a fold line multi-axis vacuum suction cup arranged on the fold line multi-axis cylinder, and a fold line transfer guide camera arranged on the fold line multi-axis manipulator.

8. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1 is characterized in that: The fold line flipping driving member includes a fold line cylinder arranged on the fold line frame, a fold line rack connected to the fold line cylinder, a fold line gear is arranged on the rotating shaft of the fold line plate, and the fold line gear is meshed with the fold line rack.

9. The PCBA foam pasting and external circuit shaping automation equipment according to claim 8 is characterized in that: The folding line frame is provided with a folding line shaping avoidance cylinder, the folding line shaping avoidance cylinder is provided with a folding line shaping mechanical clamp, the folding line shaping mechanical clamp is provided with a folding line shaping claw, the extension direction of the folding line shaping avoidance cylinder is parallel to the extension direction of the stitch, and the moving direction of the folding line shaping claw is horizontal and perpendicular to the extension direction of the stitch.

10. The PCBA foam pasting and external circuit shaping automation equipment according to claim 1, characterized in that: The film tearing unit comprises a film tearing frame arranged on the frame, a film tearing linear module arranged on the film tearing frame, and a film tearing assembly arranged on the film tearing linear module. The film tearing assembly comprises a film tearing base arranged on the film tearing linear module, a film tearing reel rotatably arranged on the film tearing base, a film tearing unreeling shaft rotatably arranged on the film tearing base, a film tearing guide wheel group arranged on the film tearing base, a film tearing head slidably connected to the film tearing base up and down, a film tearing cylinder arranged on the film tearing base, and a winding motor arranged on the film tearing base. The winding motor is drivingly connected to the winding shaft, the film tearing cylinder is elastically connected to the film tearing head, and the tape on the film tearing unreeling shaft passes through the bottom of the film tearing head and then passes through the film tearing guide wheel group and is wound around the film tearing reel.

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