CN117444344B - Full-automatic feeding structure for bonding wires of LED devices - Google Patents

Full-automatic feeding structure for bonding wires of LED devices Download PDF

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Publication number
CN117444344B
CN117444344B CN202311781545.6A CN202311781545A CN117444344B CN 117444344 B CN117444344 B CN 117444344B CN 202311781545 A CN202311781545 A CN 202311781545A CN 117444344 B CN117444344 B CN 117444344B
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China
Prior art keywords
wire
gears
fixedly connected
positioning
power
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CN202311781545.6A
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Chinese (zh)
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CN117444344A (en
Inventor
赵雷
牛威
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Huizhou Junengliang Electronic Technology Co ltd
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Huizhou Junengliang Electronic Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F11/00Cutting wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/20Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • B23K1/206Cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/36Electric or electronic devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

The invention relates to the field of welding, in particular to a full-automatic feeding structure for welding wires of an LED device. Including the winding displacement pipe that links to each other with the arm, still include: the four cleaning mechanisms are symmetrically arranged on the line pipes in pairs and are respectively staggered, so that the welding lines can be cleaned; the wire pushing mechanism is connected with the wire arranging pipe and comprises an active motor, two first magnetic disks, two second magnetic disks and a plurality of wire pushing rollers, wherein the active motor is fixedly connected with the wire arranging pipe, the two first magnetic disks are respectively arranged on two side walls of the wire arranging pipe, the two second magnetic disks are respectively connected with the two first magnetic disks through magnetic force, and the plurality of wire pushing rollers are arranged in the wire arranging pipe; the cutting mechanism comprises four cutters and eight flexible clamping plates, wherein the four cutters are arranged in a pairwise manner, the four cutters are respectively connected with the side wall of the wire arrangement tube in a sliding manner, and the eight flexible clamping plates are respectively arranged at the sides of the four cutters in a symmetrical state. The device can control the feeding speed and length of the welding wire and cut the joint of the welding wire and the welding ball.

Description

Full-automatic feeding structure for bonding wires of LED devices
Technical Field
The invention relates to the field of welding, in particular to a full-automatic feeding structure for welding wires of an LED device.
Background
The bonding wire (Solder Wire) is a wire, typically composed of an alloy of tin (Sn) and lead (Pb). The bonding wires are used in the soldering process to guide the solder (soldering tin) to the welding spots to realize connection and fixation.
When welding the LED device, an operator needs to control the feeding speed and the feeding pressure, so that the welding wire is ensured to be uniformly and stably fed to the welding spot, and the welding quality can be influenced by the feeding speed which is too high or too low and the feeding pressure which is too high or too low. Meanwhile, operators also need to ensure the surface of the welding wire to be clean, and the welding wire is prevented from influencing normal work after being melted.
In the case of soldering, since the electrode of the LED device is fragile, solder balls are typically first attached to the electrode of the LED device, and then bonding wires are LED out from the solder balls to form bonding wires for connecting the chip and the bracket or the chip and the chip in the LED device. The welding wire is fired and sintered into a welding ball through the electronic firing rod, and after the welding wire is fired through the electronic firing rod, a heat affected zone is formed by the welding wire at the part adjacent to the welding ball, and the heat affected zone is rough in crystal grain, so that the mechanical property of the heat affected zone is reduced relative to other parts, especially the part where the welding ball is in transition with the welding wire is most fragile, and certain stress is generated on the welding wire due to expansion caused by heat and contraction caused by cold when the welding ball is generated, and at the moment, the part where the welding wire is in transition with the welding ball is easily torn, so that the service life of the whole device is influenced.
Disclosure of Invention
Based on the above, it is necessary to provide a full-automatic feeding structure for bonding wires of an LED device aiming at the problems in the prior art.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
full-automatic feeding structure of LED device bonding wire, including the winding displacement pipe that links to each other with the arm still includes:
the four cleaning mechanisms are symmetrically arranged on the line pipes in pairs and are respectively staggered, so that the welding lines can be cleaned;
The wire pushing mechanism is connected with the wire arranging pipe and comprises an active motor, two first magnetic disks, two second magnetic disks and a plurality of wire pushing rollers, wherein the active motor is fixedly connected with the wire arranging pipe, the two first magnetic disks are respectively arranged on two opposite side walls of the wire arranging pipe, the two second magnetic disks are respectively connected with the two first magnetic disks through magnetic force, and the wire pushing rollers are symmetrically arranged in the wire arranging pipe at equal intervals;
the cutting mechanism comprises four cutters and eight flexible clamping plates, wherein the four cutters are arranged in a pairwise manner, the four cutters are respectively connected with the side wall of the wire arrangement tube in a sliding manner, and the eight flexible clamping plates are respectively arranged at the sides of the four cutters in a symmetrical state.
Further, clean mechanism includes clean roller, clean spring, clean extension board and clean soft cloth, and clean roller and winding displacement pipe sliding connection, clean spring coaxial line cover are established in the outside of clean roller, and clean spring's one end links firmly with the winding displacement pipe, and clean extension board links firmly with clean spring's the other end, and clean soft cloth links firmly with clean extension board one side of keeping away from clean spring.
Further, the wire pushing mechanism further comprises two driving gears, two driven gears, two wire pushing gears, two reversing gears and a plurality of wire pushing belt wheels, wherein the two driving gears are respectively and coaxially fixedly connected with two output ends of the driving motor, the two first magnetic discs are respectively and coaxially fixedly connected with the two driving gears, the two driven gears are respectively and coaxially fixedly connected with the two second magnetic discs, the two wire pushing gears are respectively meshed with the two driven gears, the two reversing gears are respectively meshed with the two wire pushing gears, the plurality of wire pushing belt wheels are respectively and fixedly connected with the plurality of wire pushing rollers in a coaxial line mode, the plurality of wire pushing belt wheels are respectively and coaxially fixedly connected with the wire pushing belt wheels in two symmetrical states through belt transmission, and the wire pushing gears and the reversing gears are respectively and symmetrically arranged.
Further, push away line mechanism still includes two driven racks, two spacing slide, two first slide rails, two spacing branch, two limit stop and two location dog, two first slide rails are fixed respectively and are set up the side at two switching-over gears, two spacing slide respectively with two first slide rail sliding connection, two driven racks link firmly with two spacing slide respectively, two driven racks mesh with two switching-over gears respectively, two spacing branch link firmly with two driven racks respectively, the shaping has the spout on two spacing branch respectively, two limit stop respectively through the adjustable connection of spout on pin and the spacing branch, two location dog set up respectively at the side of two limit stop and link firmly with the lateral wall of arranging the spool.
Further, the cutting mechanism further comprises two driving gears, two driving belt wheels, two power belt wheels, two first bevel gears and two second bevel gears, wherein the two driving gears are respectively meshed with the two driving gears, the two driving gears are respectively connected with the side wall of the wire arrangement pipe in a rotating mode, the two driving belt wheels are respectively and fixedly connected with the two driving gears in a coaxial line, the two power belt wheels are respectively arranged on one side, away from the two driving gears, of the two driving belt wheels, the two driving belt wheels are respectively connected with the two power belt wheels in a transmission mode through belts, the two first bevel gears are respectively and fixedly connected with the two power belt wheels in a coaxial line, and the two second bevel gears are respectively meshed with the two first bevel gears.
Further, the cutting mechanism further comprises two connecting rolling shafts, two switching hobbing gears, two speed increasing belt pulleys and two assembly belt pulleys, one ends of the two connecting rolling shafts are respectively and coaxially fixedly connected with the two second bevel gears, the two switching hobbing gears are respectively and coaxially fixedly connected with the other ends of the two connecting rolling shafts, the two speed increasing hobbing gears are respectively meshed with the two switching hobbing gears, the two speed increasing belt pulleys are respectively and coaxially fixedly connected with one ends of the two speed increasing hobbing gears, and the two assembly belt pulleys are respectively and coaxially connected with the two speed increasing belt pulleys through belts.
Further, the cutting mechanism further comprises two power hobbing gears, two power racks, two power support plates, four connecting support plates, two second sliding rails and eight positioning mechanisms, wherein the two power hobbing gears are respectively and coaxially fixedly connected with the two assembly belt pulleys, the two power hobbing gears are respectively and rotatably connected with the side wall of the wire arrangement pipe through tooth seats, the two power racks are respectively meshed with the two power hobbing gears, the two power support plates are fixedly connected with the two power racks, the two second sliding rails are respectively arranged at the side of the two power support plates and fixedly connected with the side wall of the wire arrangement pipe, the two second sliding rails are respectively and slidably connected with the two power support plates, the four connecting support plates are respectively and fixedly connected with the two power support plates, and the four cutters and the eight positioning mechanisms are respectively and fixedly connected with the four connecting support plates and the eight positioning mechanisms are respectively connected with the eight flexible clamping plates.
Further, positioning mechanism includes positioning sleeve, positioning spring, location inserted bar and location extension board, and positioning sleeve's one end links firmly with linking the extension board, and positioning spring sets up in positioning sleeve's inside, and positioning spring's one end links firmly with positioning sleeve, and the other end links firmly with the location inserted bar, and positioning inserted bar and positioning sleeve sliding connection, and positioning extension board links firmly with positioning inserted bar one end of keeping away from positioning spring, and positioning extension board links firmly with flexible splint.
Compared with the prior art, the invention has the following beneficial effects:
the method comprises the following steps: the device cleans the welding wire through the cleaning soft cloth, so that the periphery of the welding wire can be wiped by the cleaning soft cloth before the welding wire is welded, and the welding effect of the welding wire is prevented from being influenced by dirt;
and two,: the device controls the feeding speed and the feeding pressure through the plurality of wire pushing rollers, ensures that the welding wires are uniformly and stably fed to the welding spots, prevents the feeding speed from being too fast or too slow and the feeding pressure from being too high or too low, and further improves the welding quality;
And thirdly,: the device chops the welding wires through the cutter, ensures that no small-diameter area exists between the welding wires and the welding balls, ensures that the welding wires and the welding balls cannot be broken due to stress, ensures that deformation capacity is reserved between the welding wires and the welding balls, and improves the service life of the LED.
Drawings
FIG. 1 is a schematic perspective view of an embodiment;
FIG. 2 is an enlarged view of the structure at B in FIG. 1;
FIG. 3 is an enlarged view of the structure at C in FIG. 1;
FIG. 4 is a schematic perspective view of another embodiment at an angle;
FIG. 5 is a front view of an embodiment;
FIG. 6 is an enlarged view of the structure of FIG. 4 at A;
FIG. 7 is a schematic perspective view of a plurality of wire pushing rollers according to an embodiment;
FIG. 8 is a schematic perspective view of a positioning mechanism and a cutter in an embodiment;
fig. 9 is an exploded perspective view of the positioning mechanism in the embodiment.
The reference numerals in the figures are:
1. A wire discharge tube; 2. a cleaning mechanism; 3. a cleaning roller shaft; 4. cleaning a spring; 5. cleaning the support plate; 6. cleaning soft cloth; 7. a wire pushing mechanism; 8. a wire pushing roller; 9. an active motor; 10. a drive gear; 11. a first magnetic disk; 12. a second magnetic disk; 13. a driven gear; 14. a push wire gear; 15. a reversing gear; 16. a push wire belt wheel; 17. a driven rack; 18. a limit sliding plate; 19. a first slide rail; 20.a limit strut; 21. a limit stop; 22. positioning a stop block; 23. a cutting mechanism; 24. a drive gear; 25. a driving belt wheel; 26. a power belt wheel; 27. a first bevel gear; 28. a second bevel gear; 29. a connecting roller; 30. switching hobbing; 31. speed-increasing hobbing; 32. a speed-increasing belt wheel; 33. an assembly belt wheel; 34. power hobbing; 35. a power rack; 36. a power support plate; 37. connecting the support plates; 38. a second slide rail; 39. a positioning mechanism; 40. positioning the sleeve; 41. a positioning spring; 42. positioning the inserted link; 43. positioning a support plate; 44. a cutter; 45. a flexible splint; 46. welding wires; 47. and (5) welding balls.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 9, a full-automatic feeding structure for bonding wires of LED devices, including a wire arrangement tube 1 connected with a robot arm, further includes:
The four cleaning mechanisms 2 are symmetrically arranged on the wire arrangement pipe 1 in pairs and are respectively staggered, so that the welding wires 46 can be cleaned;
The wire pushing mechanism 7 is connected with the wire arranging pipe 1 and comprises an active motor 9, two first magnetic discs 11, two second magnetic discs 12 and a plurality of wire pushing rollers 8, wherein the active motor 9 is fixedly connected with the wire arranging pipe 1, the two first magnetic discs 11 are respectively arranged on two opposite side walls of the wire arranging pipe 1, the two second magnetic discs 12 are respectively connected with the two first magnetic discs 11 through magnetic force, and the wire pushing rollers 8 are symmetrically arranged in the wire arranging pipe 1 at equal intervals;
The cutting mechanism 23 comprises four cutters 44 and eight flexible clamping plates 45, the four cutters 44 are arranged in a pairwise opposite mode, the four cutters 44 are respectively connected with the side wall of the wire arrangement tube 1 in a sliding mode, and the eight flexible clamping plates 45 are respectively arranged at the side sides of the four cutters 44 in a symmetrical mode.
After an operator pulls the bonding wire 46 into the wire arranging tube 1 through the traction mechanism, when the operator needs to finely tune the bonding wire 46 at the welding point, the driving motor 9 is started and can finally drive the two second magnetic discs 12 to rotate through the two first magnetic discs 11, the two second magnetic discs 12 can finally push the bonding wire 46 to move through the plurality of wire pushing rollers 8 after rotating, the welding point can be machined through the welding gun after the movement of the bonding wire 46, when the welding is finished (the welding ball 47 is generated at the moment), the driving motor 9 is started and finally drives the plurality of wire pushing rollers 8 to reversely rotate, and when the plurality of wire pushing rollers 8 reversely rotate, the bonding wire 46 reversely moves and is cut off by the four cutters 44, the bonding wire 46 pulled out through the welding ball 47 is prevented from being overlong (the longer the bonding wire 46 is pulled out through the welding ball 47, the diameter of the joint of the welding ball 47 and the bonding wire 46 is smaller at the moment), the welding wire 46 is easy to break, and further the welding effect is affected, and the eight flexible clamping plates 45 can clamp the bonding wire 46 in the process, so that the occurrence of a play when the welding wire 46 is cut is avoided.
In order to prevent dirt from affecting the welding effect of the weld line 46, the following features are provided in particular:
The cleaning mechanism 2 comprises a cleaning roller shaft 3, a cleaning spring 4, a cleaning support plate 5 and a cleaning soft cloth 6, wherein the cleaning roller shaft 3 is in sliding connection with the wire arrangement tube 1, the cleaning spring 4 is coaxially sleeved outside the cleaning roller shaft 3, one end of the cleaning spring 4 is fixedly connected with the wire arrangement tube 1, the cleaning support plate 5 is fixedly connected with the other end of the cleaning spring 4, and the cleaning soft cloth 6 is fixedly connected with one side, far away from the cleaning spring 4, of the cleaning support plate 5. When the bonding wires 46 are melted, in order to ensure that the surfaces of the bonding wires 46 are clean, the bonding wires 46 need to be wiped by soft cloth before feeding to remove possible dirt, so when the bonding wires 46 move in the wire arrangement pipe 1, the four cleaning springs 4 push the four cleaning support plates 5 to drive the cleaning soft cloth 6 to abut against the bonding wires 46 through self elasticity, then after the bonding wires 46 move, the periphery of the bonding wires 46 can be wiped by the cleaning soft cloth 6 to prevent the dirt from affecting the welding effect of the bonding wires 46, and the four cleaning roll shafts 3 can prevent the four cleaning soft cloths 6 from moving.
In order to drive the wire 46 to move, the following features are provided:
The wire pushing mechanism 7 further comprises two driving gears 10, two driven gears 13, two wire pushing gears 14, two reversing gears 15 and a plurality of wire pushing belt wheels 16, wherein the two driving gears 10 are respectively and coaxially fixedly connected with two output ends of the driving motor 9, the two first magnetic disks 11 are respectively and coaxially fixedly connected with the two driving gears 10, the two driven gears 13 are respectively and coaxially fixedly connected with the two second magnetic disks 12, the two wire pushing gears 14 are respectively meshed with the two driven gears 13, the two reversing gears 15 are respectively meshed with the two wire pushing gears 14, the plurality of wire pushing belt wheels 16 are respectively and coaxially fixedly connected with the plurality of wire pushing rollers 8, the plurality of wire pushing belt wheels 16 are respectively and coaxially fixedly connected with the wire pushing belt wheels 16 which are arranged in two symmetrical states through belt transmission, and the wire pushing gears 14 and the reversing gears 15 are respectively and coaxially fixedly connected with the wire pushing belt wheels 16 which are arranged in two symmetrical states. After the driving motor 9 is started, the driving motor 9 drives the two first magnetic disks 11 to rotate through the two driving gears 10, the two first magnetic disks 11 respectively drive the two wire pushing gears 14 to rotate through the two driven gears 13, the two wire pushing gears 14 rotate and drive the two reversing gears 15 to rotate, and the two wire pushing gears 14 and the two reversing gears 15 respectively drive the two wire pushing belt wheels 16 fixedly connected with the two wire pushing gears 14 to reversely rotate because the two reversing gears 15 respectively turn opposite to the two wire pushing gears 14, at the moment, the two wire pushing rollers 8 connected with the two wire pushing belt wheels 16 rotate, and then the plurality of wire pushing rollers 8 rotate and then drive the welding wires 46 to move.
In order to improve the integrity of the ends of the weld lines 46, the following features are provided:
The wire pushing mechanism 7 further comprises two driven racks 17, two limit sliding plates 18, two first sliding rails 19, two limit supporting rods 20, two limit stop blocks 21 and two positioning stop blocks 22, wherein the two first sliding rails 19 are respectively and fixedly arranged at the sides of the two reversing gears 15, the two limit sliding plates 18 are respectively and slidably connected with the two first sliding rails 19, the two driven racks 17 are respectively and fixedly connected with the two limit sliding plates 18, the two driven racks 17 are respectively meshed with the two reversing gears 15, the two limit supporting rods 20 are respectively and fixedly connected with the two driven racks 17, sliding grooves are respectively formed in the two limit supporting rods 20, the two limit stop blocks 21 are respectively and adjustably connected with the sliding grooves in the limit supporting rods 20 through pins, and the two positioning stop blocks 22 are respectively arranged at the sides of the two limit stop blocks 21 and fixedly connected with the side wall of the wire arranging pipe 1. When the driving motor 9 is started and drives the welding wire 46 to retract, in order to avoid the welding wire 46 from being cut off by the cutter 44 when moving, when the driving motor 9 is started and drives the two driven racks 17 to move through the two reversing gears 15, the two driven racks 17 respectively drive the two limit supporting rods 20 to move, the two limit stop blocks 21 are driven by the two limit stop blocks 20 to move until the two limit stop blocks 21 abut against the two positioning stop blocks 22, the two limit stop blocks 21 stop moving, namely, at the moment, the two driven racks 17 stop moving, the welding wire 46 stops moving, at the moment, the driving motor 9 continues to move so that the two first magnetic discs 11 and the two second magnetic discs 12 relatively rotate (namely, the resistance born by the second magnetic discs 12 is larger than the magnetic force exerted by the first magnetic discs 11 on the second magnetic discs 12, at the moment, the second magnetic discs 12 stop rotating based on the principle of a magnetic coupler, but the first magnetic discs 11 continue rotating, the driving motor 9 starts to enable the two limit stop blocks 21 to move until the two limit stop blocks 21 abut against the two positioning stop blocks 22, and finally the welding wire 46 stops moving, at the moment, the welding wire 46 can cut off in a static state, and the integrity of the end part 46 is improved.
In order to drive the four cutters 44 to displace, the following features are provided:
The cutting mechanism 23 further comprises two driving gears 24, two driving belt wheels 25, two power belt wheels 26, two first bevel gears 27 and two second bevel gears 28, wherein the two driving gears 24 are respectively meshed with the two driving gears 10, the two driving gears 24 are respectively connected with the side wall of the wire arrangement tube 1 in a rotating mode, the two driving belt wheels 25 are respectively connected with the two driving gears 24 in a coaxial line mode, the two power belt wheels 26 are respectively arranged on one sides, far away from the two driving gears 10, of the two driving belt wheels 25, the two driving belt wheels 25 are respectively connected with the two power belt wheels 26 in a transmission mode through belts, the two first bevel gears 27 are respectively connected with the two power belt wheels 26 in a coaxial line mode, and the two second bevel gears 28 are respectively meshed with the two first bevel gears 27. When the driving motor 9 is started, the driving motor 9 can drive the driving gear 24 to rotate through the driving gear 10, the driving gear 24 drives the power belt pulley 26 to rotate through the driving belt pulley 25, the power belt pulley 26 drives the second bevel gear 28 to rotate through the first bevel gear 27, and the rotation of the second bevel gear 28 can finally drive the four cutters 44 to move.
In order to prevent the quality of the solder joint from being affected by the breakage of the bonding wire 46 and the solder ball 47, the following features are provided in particular:
The cutting mechanism 23 further comprises two linking rollers 29, two switching gear hobbing 30, two speed-increasing gear hobbing 31, two speed-increasing belt pulleys 32 and two assembly belt pulleys 33, one ends of the two linking rollers 29 are respectively and coaxially fixedly connected with the two second bevel gears 28, the two switching gear hobbing 30 are respectively and coaxially fixedly connected with the other ends of the two linking rollers 29, the two speed-increasing gear hobbing 31 are respectively meshed with the two switching gear hobbing 30, the two speed-increasing belt pulleys 32 are respectively and coaxially fixedly connected with one ends of the two speed-increasing gear hobbing 31, and the two assembly belt pulleys 33 are respectively and coaxially connected with the two speed-increasing belt pulleys 32 through belts. After the second bevel gears 28 rotate, the two second bevel gears 28 drive the two transfer gear hobbing 30 to rotate through the two connecting rollers 29, the two transfer gear hobbing 30 drive the two speed increasing belt pulleys 32 to rotate through the two speed increasing gear hobbing 31 respectively, and the two speed increasing belt pulleys 32 drive the two assembly belt pulleys 33 to rotate through the belt respectively. In this process, the two speed increasing gear hobbing 31 amplifies the output power of the two engagement rollers 29, so as to ensure that the wire drawing between the bonding wire 46 and the solder ball 47 is not too large, and prevent the quality of the solder joint from being affected by the breakage of the bonding wire 46 and the solder ball 47.
In order to prevent the wire 46 from being shifted during the cutting process, the following features are provided in particular:
The cutting mechanism 23 further comprises two power hobbing 34, two power racks 35, two power support plates 36, four connecting support plates 37, two second sliding rails 38 and eight positioning mechanisms 39, wherein the two power hobbing 34 is respectively and coaxially connected with the two assembly pulleys 33, the two power hobbing 34 is respectively and rotatably connected with the side wall of the wire arrangement tube 1 through a tooth seat, the two power racks 35 are respectively meshed with the two power hobbing 34, the two power support plates 36 are fixedly connected with the two power racks 35, the two second sliding rails 38 are respectively arranged at the side of the two power support plates 36 and fixedly connected with the side wall of the wire arrangement tube 1, the two second sliding rails 38 are respectively and slidably connected with the two power support plates 36, the four connecting support plates 37 are respectively and fixedly connected with the two power support plates 36, the four cutters 44 and the eight positioning mechanisms 39 are respectively and fixedly connected with the four connecting support plates 37, and the eight positioning mechanisms 39 are respectively connected with the eight flexible clamping plates 45. After the assembly belt wheels 33 rotate, the two assembly belt wheels 33 drive the two power racks 35 to move through the two power hobbing 34, the two power racks 35 drive the four connecting support plates 37 to move through the two power support plates 36, the four connecting support plates 37 drive the four cutters 44 to cut off the welding wires 46 after moving, the fact that the welding wires 46 can generate complete welding balls 47 at welding points when welding the next welding points is ensured, and when the four cutters 44 move, the eight positioning mechanisms 39 can drive the eight flexible clamping plates 45 to position the welding wires 46, so that the welding wires 46 are prevented from moving in the cutting process.
In order to prevent the solder wire 46 from falling onto the solder joint, the following features are provided in particular:
the positioning mechanism 39 comprises a positioning sleeve 40, a positioning spring 41, a positioning inserting rod 42 and a positioning support plate 43, one end of the positioning sleeve 40 is fixedly connected with the connecting support plate 37, the positioning spring 41 is arranged in the positioning sleeve 40, one end of the positioning spring 41 is fixedly connected with the positioning sleeve 40, the other end of the positioning spring 41 is fixedly connected with the positioning inserting rod 42, the positioning inserting rod 42 is in sliding connection with the positioning sleeve 40, the positioning support plate 43 is fixedly connected with one end, far away from the positioning spring 41, of the positioning inserting rod 42, and the positioning support plate 43 is fixedly connected with the flexible clamping plate 45. When the connecting support plate 37 moves towards the direction close to the welding line 46, the flexible clamping plate 45 is contacted with the welding line 46, and then when the connecting support plate 37 continues to move to drive the cutter 44 to cut off the welding line 46, the connecting support plate 37 drives the positioning spring 41 to compress through the positioning sleeve 40, so that the cutter 44 is ensured not to move when the cutter 44 cuts off the welding line 46. Similarly, when the cutter 44 is reset, the positioning spring 41 can ensure that the welding wire 46 does not fall immediately, so as to prevent the welding wire 46 from falling on the welding spot, thereby affecting the welding work.
The working principle of the device is that when an operator pulls the welding wire 46 into the wire discharging tube 1 through the traction mechanism, the periphery of the welding wire 46 is wiped by the cleaning soft cloth 6, dirt is prevented from affecting the welding effect of the welding wire 46, and the four cleaning roll shafts 3 can prevent the four cleaning soft cloths 6 from moving in the moving process.
After the welding work is finished, an operator needs to recover the welding wire 46 and cut off the end part of the welding wire 46 locally, at this time, the driving motor 9 is started and can drive the two second magnetic discs 12 to rotate finally through the two first magnetic discs 11, until the two limit stops 21 abut against the two positioning stops 22, the two limit stops 21 stop moving, namely, at this time, the two driven racks 17 stop moving, the welding wire 46 stops moving, at this time, the driving motor 9 continues moving to enable the two first magnetic discs 11 and the two second magnetic discs 12 to find relative slipping (namely, the resistance of the second magnetic discs 12 is greater than the magnetic force exerted by the first magnetic discs 11 on the second magnetic discs 12, at this time, the second magnetic discs 12 stop rotating based on the principle of a magnetic coupler, but the first magnetic discs 11 continue rotating, so that the two relative rotating occurs), the driving motor 9 starts to enable the cutter 44 to move continuously, and finally the cutter 44 can cut off the welding wire 46 in a static state, so that the integrity of the end part of the welding wire 46 is improved.
The welding wire 46 pulled out through the welding ball 47 is prevented from being overlong, so that the welding effect is affected, and the eight flexible clamping plates 45 can clamp the welding wire 46 in the process, so that the welding wire 46 is prevented from being shifted when being cut. Meanwhile, when the cutter 44 is reset, the positioning spring 41 can ensure that the welding wire 46 does not fall immediately, so that the welding wire 46 is prevented from falling on the welding spot, and further the welding work is influenced.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (6)

1. Full-automatic feeding structure of LED device bonding wire, including being connected with the winding displacement pipe (1) of arm, its characterized in that still includes:
the four cleaning mechanisms (2) are symmetrically arranged on the wire arrangement pipe (1) in pairs in a staggered manner, and can clean welding wires (46);
The wire pushing mechanism (7) is connected with the wire arranging pipe (1) and comprises an active motor (9), two first magnetic discs (11), two second magnetic discs (12) and a plurality of wire pushing rollers (8), wherein the active motor (9) is fixedly connected with the wire arranging pipe (1), the two first magnetic discs (11) are respectively arranged on two opposite side walls of the wire arranging pipe (1), the two second magnetic discs (12) are respectively connected with the two first magnetic discs (11) through magnetic force, and the wire pushing rollers (8) are symmetrically arranged in the wire arranging pipe (1) at equal intervals;
The cutting mechanism (23) comprises four cutters (44) and eight flexible clamping plates (45), the four cutters (44) are arranged in a pairwise opposite mode, the four cutters (44) are respectively connected with the side wall of the wire arrangement tube (1) in a sliding mode, and the eight flexible clamping plates (45) are respectively arranged at the sides of the four cutters (44) in a symmetrical mode;
The wire pushing mechanism (7) further comprises two driving gears (10), two driven gears (13), two wire pushing gears (14), two reversing gears (15) and a plurality of wire pushing belt wheels (16), wherein the two driving gears (10) are respectively and fixedly connected with two output ends of the driving motor (9) in a coaxial line, the two first magnetic disks (11) are respectively and fixedly connected with the two driving gears (10) in a coaxial line, the two driven gears (13) are respectively and fixedly connected with the two second magnetic disks (12) in a coaxial line, the two wire pushing gears (14) are respectively meshed with the two driven gears (13), the two reversing gears (15) are respectively meshed with the two wire pushing gears (14), the plurality of wire pushing belt wheels (16) are respectively and fixedly connected with the plurality of wire pushing rollers (8) in a coaxial line, the plurality of wire pushing belt wheels (16) are respectively and fixedly connected with the wire pushing belt wheels (16) in a coaxial line through belt transmission, and the wire pushing gears (14) and the reversing gears (15) are respectively and fixedly connected with the wire pushing belt wheels (16) which are arranged in two symmetrical states;
The wire pushing mechanism (7) further comprises two driven racks (17), two limiting sliding plates (18), two first sliding rails (19), two limiting supporting rods (20), two limiting check blocks (21) and two positioning check blocks (22), wherein the two first sliding rails (19) are respectively fixedly arranged at the sides of the two reversing gears (15), the two limiting sliding plates (18) are respectively and slidably connected with the two first sliding rails (19), the two driven racks (17) are respectively and fixedly connected with the two limiting sliding plates (18), the two driven racks (17) are respectively meshed with the two reversing gears (15), the two limiting supporting rods (20) are respectively and fixedly connected with the two driven racks (17), sliding grooves are respectively formed in the two limiting supporting rods (20), the two limiting check blocks (21) are respectively and adjustably connected with the sliding grooves in the limiting supporting rods (20) through pins, and the two positioning check blocks (22) are respectively arranged at the sides of the two limiting check blocks (21) and fixedly connected with the side walls of the wire arranging pipe (1).
2. The full-automatic feeding structure for the bonding wires of the LED devices according to claim 1, wherein the cleaning mechanism (2) comprises a cleaning roller shaft (3), a cleaning spring (4), a cleaning support plate (5) and a cleaning soft cloth (6), the cleaning roller shaft (3) and the wire exhaust pipe (1) are in sliding connection, the cleaning spring (4) is coaxially sleeved outside the cleaning roller shaft (3), one end of the cleaning spring (4) is fixedly connected with the wire exhaust pipe (1), the cleaning support plate (5) is fixedly connected with the other end of the cleaning spring (4), and the cleaning soft cloth (6) and the cleaning support plate (5) are fixedly connected on one side far away from the cleaning spring (4).
3. The full-automatic feeding structure for the bonding wires of the LED devices according to claim 1, wherein the cutting mechanism (23) further comprises two driving gears (24), two driving belt wheels (25), two power belt wheels (26), two first bevel gears (27) and two second bevel gears (28), the two driving gears (24) are respectively meshed with the two driving gears (10), the two driving gears (24) are respectively connected with the side wall of the wire arrangement tube (1) in a rotating mode, the two driving belt wheels (25) are respectively connected with the two driving gears (24) in a coaxial line mode, the two power belt wheels (26) are respectively arranged on one side, away from the two driving gears (10), of the two driving belt wheels (25) in a transmission mode, the two driving belt wheels (25) are respectively connected with the two power belt wheels (26) in a transmission mode, the two first bevel gears (27) are respectively connected with the two power belt wheels (26) in a coaxial line mode, and the two second bevel gears (28) are respectively meshed with the two first bevel gears (27).
4. A full-automatic feeding structure for bonding wires of LED devices according to claim 3, wherein the cutting mechanism (23) further comprises two connecting rollers (29), two adapting hobbing (30), two accelerating hobbing (31), two accelerating pulleys (32) and two assembly pulleys (33), one ends of the two connecting rollers (29) are respectively and coaxially fixedly connected with the two second bevel gears (28), the two adapting hobbing (30) are respectively and coaxially fixedly connected with the other ends of the two connecting rollers (29), the two accelerating hobbing (31) are respectively meshed with the two adapting hobbing (30), the two accelerating pulleys (32) are respectively and coaxially fixedly connected with one ends of the two accelerating hobbing (31), and the two assembly pulleys (33) are respectively and coaxially connected with the two accelerating pulleys (32) through belts.
5. The full-automatic feeding structure for bonding wires of LED devices according to claim 4, wherein the cutting mechanism (23) further comprises two power hobbing gears (34), two power racks (35), two power supporting plates (36), four connecting supporting plates (37), two second sliding rails (38) and eight positioning mechanisms (39), the two power hobbing gears (34) are respectively and coaxially fixedly connected with two assembly belt wheels (33), the two power hobbing gears (34) are respectively and rotatably connected with the side wall of the wire arrangement tube (1) through tooth seats, the two power racks (35) are respectively meshed with the two power hobbing gears (34), the two power supporting plates (36) are fixedly connected with the two power racks (35), the two second sliding rails (38) are respectively arranged beside the two power supporting plates (36) and fixedly connected with the side wall of the wire arrangement tube (1), the two second sliding rails (38) are respectively and slidably connected with the two power supporting plates (36), the four connecting supporting plates (37) are respectively and fixedly connected with the two flexible supporting plates (45) and the four eight positioning mechanisms (39) are respectively and fixedly connected with the eight positioning mechanisms (45).
6. The full-automatic feeding structure for the bonding wires of the LED devices according to claim 5, wherein the positioning mechanism (39) comprises a positioning sleeve (40), a positioning spring (41), a positioning inserting rod (42) and a positioning support plate (43), one end of the positioning sleeve (40) is fixedly connected with the connecting support plate (37), the positioning spring (41) is arranged in the positioning sleeve (40), one end of the positioning spring (41) is fixedly connected with the positioning sleeve (40), the other end of the positioning spring is fixedly connected with the positioning inserting rod (42), the positioning inserting rod (42) is in sliding connection with the positioning sleeve (40), one end, far away from the positioning spring (41), of the positioning support plate (43) is fixedly connected with the flexible clamping plate (45).
CN202311781545.6A 2023-12-22 2023-12-22 Full-automatic feeding structure for bonding wires of LED devices Active CN117444344B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0917134A (en) * 1995-06-28 1997-01-17 Nippon Columbia Co Ltd Feed mechanism
CN202346460U (en) * 2011-11-22 2012-07-25 杨键 Slipping clutch retractor for magnetic gear
KR20150011186A (en) * 2013-07-22 2015-01-30 엘지전자 주식회사 Apparatus for supplying solering wire
CN105033397A (en) * 2015-08-17 2015-11-11 武汉锐泽科技发展有限公司 Tin conveying mechanism and floating machine
CN117042435A (en) * 2023-05-26 2023-11-10 卢运保 Automatic assembly line for circuit board bonding wires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0917134A (en) * 1995-06-28 1997-01-17 Nippon Columbia Co Ltd Feed mechanism
CN202346460U (en) * 2011-11-22 2012-07-25 杨键 Slipping clutch retractor for magnetic gear
KR20150011186A (en) * 2013-07-22 2015-01-30 엘지전자 주식회사 Apparatus for supplying solering wire
CN105033397A (en) * 2015-08-17 2015-11-11 武汉锐泽科技发展有限公司 Tin conveying mechanism and floating machine
CN117042435A (en) * 2023-05-26 2023-11-10 卢运保 Automatic assembly line for circuit board bonding wires

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