Universal circuit board tin soldering device

Abstract

The invention relates to the technical field of circuit board welding equipment, in particular to a universal circuit board tin soldering device which comprises a bearing module, a pair of mechanical arms, a wire feeding device and an electric soldering iron. The pair of mechanical arms is arranged on the bearing module; the electric soldering iron is arranged at the execution end of one mechanical arm and used for welding a circuit board. The wire feeding device is arranged at the execution end of the other mechanical arm and used for providing welding wires for the electric soldering iron. The electric soldering iron and the wire feeding device are arranged on the two mechanical arms respectively, so that the freedom degree of the electric soldering iron and the wire feeding device in the welding process is increased, the device can be suitable for welding circuit boards through various welding methods, for example, the device can be suitable for welding methods such as a spot welding method and a drag welding method at the same time, and the welding efficiency is improved. The functional diversity of the device is enhanced, and the defect that in the prior art, the function is single is overcome.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board welding equipment, in particular to a universal circuit board soldering device. Background Art

[0002] A universal circuit board, also known as a universal board, is a board that has pads arranged according to standard IC spacing, so that users can insert components and connect them according to their own wishes. Compared with PCB boards, it is easy to use and flexible to expand.

[0003] In the prior art, automatic or semi-automatic welding equipment is usually used to weld and install components on circuit boards in order to improve production efficiency. For example, a printed circuit board soldering device disclosed in a Chinese invention patent with application publication number CN118455682A includes: a suspension mechanism, the suspension mechanism includes a base, a vertical pole, a suspension column, an adjustment plate and a suspension frame; the welding mechanism includes a middle block, a grip, a button, a suspension disk, a rotating gear and a heating rod installed; the feeding mechanism includes a support clamp, a motor, a feed gear, a feed wheel and an adjustment sheet; the cleaning mechanism includes a support seat, a rotating wheel, a sliding sleeve, a second spring, a telescopic block, a clamping block and a cleaning groove; the efficiency enhancement mechanism includes a cleaning block; the drilling and washing mechanism includes a shell, a side block, a cross bar, a push block, a lifting cylinder, a cleaning column, a fourth spring, a lifting column, a lifting wedge block, a guide groove and a slider.

[0004] However, since the heating rod with a conical bottom shape is arranged at the bottom of the middle block installed on the top of the suspension column, and the feeding mechanism is assembled on the middle block and the gripping rod, the device is only suitable for welding circuit boards using the spot welding method, and has the defect of single functionality. Summary of the invention

[0005] In view of the technical problem of single functionality existing in the prior art, an embodiment of the present invention provides a universal circuit board soldering device, comprising: a carrying module, a pair of mechanical arms, a wire feeding device and an electric soldering iron; A pair of mechanical arms are arranged on the carrying module; The electric soldering iron is arranged at the execution end of one of the robotic arms and is used for soldering the circuit board; The wire feeding device is arranged at the execution end of another robot arm and is used for providing welding wire to the electric soldering iron.

[0006] Furthermore, the wire feeding device comprises: a bearing shell, a wire inlet hole, a wire outlet hole, a bearing seat, an I-shaped wheel, a wire feeding assembly and a wire outlet angle adjustment assembly; The bearing housing is fixedly arranged at the execution end of the mechanical arm; The wire entry hole is arranged on the top of the bearing shell, and the wire entry hole penetrates the outer wall of the bearing shell and communicates with the inner cavity of the bearing shell; The wire outlet hole is arranged at the bottom of the bearing shell, and the wire outlet hole penetrates the outer wall of the bearing shell and communicates with the inner cavity of the bearing shell; The bearing seat is fixedly arranged on the top of the bearing housing; The I-shaped wheel is rotatably arranged on the bearing seat, the welding wire is rolled up on the I-shaped wheel, and the head end of the welding wire passes through the wire inlet hole and the wire outlet hole in sequence and extends out of the bottom surface of the bearing shell; The wire feeding assembly is arranged inside the bearing shell, and the wire feeding assembly is connected to the welding wire and is used to transmit the welding wire; The wire outlet angle adjustment module is arranged on the bearing shell and is used for adjusting the output angle of the welding wire through the wire outlet hole.

[0007] Further, the wire feeding assembly comprises: a bearing plate, a plurality of first pulleys, a first motor, a first transmission belt, a plurality of second pulleys, a second transmission belt and a wire feeding channel; The bearing plate is fixedly arranged on the inner wall of the bearing shell; A plurality of first pulleys are rotatably arranged on the bearing plate, and the plurality of first pulleys are distributed in a line along the axial direction of the bearing shell; The first motor is fixedly arranged on the bearing plate, and the driving end of the first motor is connected to one of the first pulleys for driving the first pulley to rotate; The first transmission belt is mounted on a plurality of first pulleys and is used to drive the plurality of first pulleys to rotate synchronously; A plurality of second pulleys are rotatably arranged on the bearing plate, and the plurality of second pulleys are distributed in a line along the axial direction of the bearing shell; The second transmission belt is sleeved on a plurality of second pulleys, the second transmission belt is located on one side of the first transmission belt, the welding wire passes between the second transmission belt and the first transmission belt, and the outer surface of the welding wire abuts against the outer annular surface of the second transmission belt and the first transmission belt; The wire feeding channel is fixedly arranged on the inner wall of the bearing shell, the output end of the wire feeding channel is connected with the wire outlet hole, and the welding wire passes through the inner cavity of the wire feeding channel.

[0008] Furthermore, the wire feeding assembly further comprises: a partition, an assembly hole and a filler; The partition is fixedly arranged on the inner wall of the bearing shell, and the partition is arranged along the radial direction of the bearing shell; The assembly hole is provided on the partition; The filler is arranged between the partition plate and the inner cavity top wall of the bearing shell, and the welding wire passes through the filler and the assembly hole in sequence.

[0009] Furthermore, a first accommodating groove is opened on the circumferential side wall of the first pulley, and the first accommodating groove is arranged along the circumference of the first pulley, and the first accommodating groove is a V-shaped groove. A second accommodating groove is opened on the circumferential side wall of the second pulley, and the second accommodating groove is arranged along the circumference of the second pulley, and the second accommodating groove is a V-shaped groove, and the first transmission belt and the second transmission belt are both elastic belts.

[0010] Furthermore, the wire outlet angle adjustment assembly comprises: a guide notch, a rotating shaft, a baffle, a first linear module, a slider and a connecting rod; The guide notch is formed at the bottom of the bearing shell, the guide notch is exposed on the side wall surface of the bearing shell, and the guide notch is connected with the wire outlet hole; The rotating shaft is fixedly arranged at the bottom of the bearing shell, and is arranged along the radial direction of the bearing shell; The middle section of the baffle is rotatably connected to the rotating shaft; The first linear module is fixedly arranged on the bearing housing, and the first linear module is arranged along the axial direction of the bearing housing; The slider is fixedly arranged at the execution end of the first linear module; One end of the connecting rod is rotatably connected to the sliding block, and the other end of the connecting rod is rotatably connected to the tail end of the baffle, so as to drive the baffle to flip.

[0011] Furthermore, the bearing module includes: an assembly bracket, a turntable, a second motor and a pair of second linear modules; The turntable is rotatably arranged on the assembly bracket; The second motor is fixedly arranged on the assembly bracket, and the driving end of the second motor is connected to the turntable to drive the turntable to rotate; A pair of second linear modules are fixedly arranged at the bottom of the turntable, the pair of second linear modules are arranged in parallel, and a pair of mechanical arms are respectively arranged at the execution ends of the pair of second linear modules.

[0012] Furthermore, it also includes: a conveying device and a plurality of conveying jigs, wherein the plurality of conveying jigs are arranged on the conveying device and are used to convey the circuit board.

[0013] Furthermore, the conveying fixture comprises: a bearing bracket, a flip bracket, a pair of first guide holes, a pair of locking holes and a plurality of positioning components; The flip bracket movable cover is arranged on the top of the bearing bracket, one side of the flip bracket is hinged to one side of the bearing bracket, and the circuit board is movably arranged in the inner cavity of the flip bracket for bearing the circuit board; A pair of first guide holes are formed on the support bracket, the first guide holes are oblong holes, and the pair of first guide holes are arranged in parallel; A pair of locking holes are provided on the flip bracket, and the positions of the pair of locking holes correspond to the positions of the pair of first guide holes one by one; A plurality of positioning components are arranged on the bearing bracket, any one of the positioning components is connected with a pair of first guide holes and a pair of locking holes, and the positioning component is connected with the circuit board for positioning the circuit board.

[0014] Further, the positioning assembly includes: a guide rod, a pair of locking rods, a second guide hole, a plurality of nuts and a plurality of hand screws; The guide rod is movably arranged at the bottom of the bearing bracket, and the two ends of the guide rod are respectively slidably connected to a pair of second guide holes; A pair of locking rods are rotatably arranged at the two ends of the guide rod, the driving end of any locking rod protrudes from the bottom surface of the guide rod, and the clamping end of any locking rod passes through the first guide hole and is connected to the corresponding locking hole, so as to lock the bearing bracket and the flip bracket; The second guide hole is formed on the guide rod, and the second guide hole is arranged along the length direction of the guide rod; A plurality of nuts are arranged in the second guide hole, and any one of the nuts is slidably connected to the second guide hole; A plurality of hand screws are respectively arranged on a plurality of nuts, any hand screw is threadedly connected with the corresponding nut, and the top end of any hand screw abuts against the circuit board to press and position the circuit board.

[0015] The universal circuit board soldering device according to the embodiment of the present invention has the following beneficial effects: 1. The present invention arranges the electric soldering iron and the wire feeding device on two mechanical arms respectively to increase the freedom of the electric soldering iron and the wire feeding device during the welding process, so that the device can be applied to a variety of welding methods for welding circuit boards. For example, the device can be applied to spot welding, drag welding and other welding methods at the same time, thereby enhancing the functional diversity of the device and solving the defect of single functionality in the prior art.

[0016] 2. The wire feeding device of the present invention is provided with a wire outlet angle adjustment component at the wire outlet hole of the bearing shell, and the wire feeding component is used to transmit the welding wire, so that in the process of the welding wire being output through the wire outlet hole, the welding wire can be bent into a certain angle by using a baffle, and then the welding wire can be driven to output along the wire outlet hole only by the wire feeding component, so that the melted welding wire can be linearly distributed on the circuit board, which greatly reduces the vibration generated when the robot arm drives the wire feeding device to move during the welding process, and prevents the welding wire that is linearly distributed on the circuit board from being disconnected after being melted.

[0017] 3. The present invention opens a first accommodating groove on the first pulley, opens a second accommodating groove on the second pulley, and adopts a first transmission belt and a second transmission belt with elasticity, so that when the first transmission belt and the second transmission belt are clamping and transmitting the welding wire, the first transmission belt and the second transmission belt are used to straighten the welding wire, thereby improving the welding accuracy of the device.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a stereogram according to an embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A area; Figure 3 is a three-dimensional diagram of a wire feeding device according to an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle B area; Figure 5 is a schematic diagram of the internal structure of a wire feeding device according to an embodiment of the present invention; Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle C area; Figure 7 for Figure 5 A partial enlarged schematic diagram of the D area in the middle; Figure 8 A schematic diagram of the structural decomposition of a carrier module according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of the assembly of the conveying fixture according to an embodiment of the present invention (the bearing bracket and the flip bracket are in a closed state); Fig.10 for Fig. 9 A partial enlarged schematic diagram of the middle E area; Fig.11 It is a schematic diagram of the assembly of the conveying fixture according to an embodiment of the present invention (the bearing bracket and the flip bracket are in an open state); Fig.12 for Fig.11 A partial enlarged schematic diagram of the middle F area; Fig.13 1 is a parts diagram of a load-bearing bracket according to an embodiment of the present invention.

[0020] Description of the accompanying drawings: 1-carrying module, 11-assembly bracket, 12-turntable, 13-second motor, 14-second linear module, 2-mechanical arm, 3-electric soldering iron, 4-wire feeding device, 41-carrying shell, 42-wire inlet hole, 43-wire outlet hole, 44-bearing seat, 45-I-shaped wheel, 461-carrying plate, 462-first pulley, 4621-first accommodating groove, 463-first transmission belt, 464-second pulley, 4641-second accommodating groove, 465-second transmission belt, 466-wire inlet channel, 4661-guide section, 4662-transmission section, 467-partition, 468-assembly hole, 471-guide notch, 472-rotating shaft, 47 3-baffle, 474-first linear module, 475-slider, 476-connecting rod, 5-transmission device, 51-mounting bracket, 52-first conveyor wheel, 53-first conveyor belt, 54-transmission shaft, 6-transmission fixture, 61-bearing bracket, 611-rack, 62-flip bracket, 63-first guide hole, 64-locking hole, 65-positioning assembly, 651-guide rod, 652-locking rod, 6521-driving section, 6522-connecting section, 6523-clamping section, 653-second guide hole, 654-nut, 655-hand screw, 6551-screw, 6552-elastic gasket, 7-circuit board, 8-welding wire. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0022] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only reference directions of the accompanying drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0023] First, combine Figures 1 to 13 A universal circuit board soldering device according to an embodiment of the present invention is described, which is used for soldering a universal circuit board 7 and has a wide range of application scenarios.

[0024] like Figure 1 , 3 As shown in FIG. 4 , the universal circuit board soldering device according to an embodiment of the present invention comprises: a carrying module 1 , a pair of mechanical arms 2 , a wire feeding device 4 and an electric soldering iron 3 .

[0025] Specifically, Figure 1 , 3As shown in , 4, a pair of robot arms 2 are arranged on the carrying module 1; the electric soldering iron 3 is arranged at the execution end of one of the robot arms 2, and is used for welding the circuit board 7; the wire feeding device 4 is arranged at the execution end of the other robot arm 2, and is used for providing welding wire 8 for the electric soldering iron 3; in this embodiment, when the equipment is running, one of the robot arms 2 controls the electric soldering iron 3 to heat the soldering pad with the welding position of the circuit board 7, and the other robot arm 2 controls the wire feeding device 4 to output the welding wire 8, so that the end of the welding wire 8 touches the soldering pad at the position to be welded of the circuit board 7, so that the welding wire 8 melts, thereby performing welding.

[0026] Further, if Figure 1 , 3 As shown in Figure 6, the wire feeding device 4 includes: a bearing shell 41, a wire inlet hole 42, a wire outlet hole 43, a bearing seat 44, an I-shaped wheel 45, a wire feeding assembly and a wire outlet angle adjustment assembly; the bearing shell 41 is fixedly arranged at the execution end of the robot arm 2; the wire inlet hole 42 is opened at the top of the bearing shell 41, and the wire inlet hole 42 passes through the outer wall of the bearing shell 41 and is connected to the inner cavity of the bearing shell 41; the wire outlet hole 43 is opened at the bottom of the bearing shell 41, and the wire outlet hole 43 passes through the outer wall of the bearing shell 41 and is connected to the inner cavity of the bearing shell 41 The inner cavity is connected; the bearing seat 44 is fixedly arranged on the top of the bearing shell 41; the I-shaped wheel 45 is rotatably arranged on the bearing seat 44, the welding wire 8 is wound on the I-shaped wheel 45, and the head end of the welding wire 8 passes through the wire inlet hole 42 and the wire outlet hole 43 in turn and extends out of the bottom surface of the bearing shell 41; the wire feeding assembly is arranged inside the bearing shell 41, and the wire feeding assembly is connected to the welding wire 8 for transmitting the welding wire 8; the wire outlet angle adjustment module is arranged on the bearing shell 41, and is used to adjust the output angle of the welding wire 8 through the wire outlet hole 43.

[0027] Further, if Figures 3-5As shown, the wire feeding assembly includes: a bearing plate 461, a plurality of first pulleys 462, a first motor (not shown in the figure), a first transmission belt 463, a plurality of second pulleys 464, a second transmission belt 465 and a wire feeding channel 466; the bearing plate 461 is fixedly arranged on the inner wall of the bearing shell 41; a plurality of first pulleys 462 are rotatably arranged on the bearing plate 461, and a plurality of first pulleys 462 are distributed in a straight line along the axial direction of the bearing shell 41; the first motor is fixedly arranged on the bearing plate 461, and the driving end of the first motor is connected to one of the first pulleys 462, so as to drive the first pulley 462 to rotate; the first transmission belt 463 is sleeved on a plurality of first pulleys 462, so as to drive A number of first pulleys 462 rotate synchronously; a number of second pulleys 464 are rotatably set on the bearing plate 461, and the number of second pulleys 464 are distributed in a line along the axial direction of the bearing shell 41; the second transmission belt 465 is sleeved on the number of second pulleys 464, and the second transmission belt 465 is located on one side of the first transmission belt 463, and the welding wire 8 passes between the second transmission belt 465 and the first transmission belt 463, and the outer surface of the welding wire 8 abuts against the outer annular surface of the second transmission belt 465 and the first transmission belt 463; the wire inlet channel 466 is fixedly set on the inner wall of the bearing shell 41, and the output end of the wire inlet channel 466 is connected with the wire outlet hole 43, and the welding wire 8 passes through the inner cavity of the wire inlet channel 466.

[0028] Preferably, Figures 3-5 As shown in , 7, a first accommodating groove 4621 is opened on the circumferential side wall of the first pulley 462, and the first accommodating groove 4621 is arranged along the circumference of the first pulley 462, and the first accommodating groove 4621 is a V-shaped groove. A second accommodating groove 4641 is opened on the circumferential side wall of the second pulley 464, and the second accommodating groove 4641 is arranged along the circumference of the second pulley 464, and the second accommodating groove 4641 is a V-shaped groove. The first transmission belt 463 and the second transmission belt 465 are both elastic belts. When the welding wire 8 passes between the first transmission belt 463 and the second transmission belt 465, the first transmission belt 463 and the second transmission belt 465 are squeezed by the welding wire 8 and elastically deformed, and are respectively recessed towards the inner cavity of the first accommodating groove 4621 and the second accommodating groove 4641, and the welding wire 8 is pressed straight by the elastic force of the first transmission belt 463 and the second transmission belt 465.

[0029] Preferably, Figures 3 to 6As shown, in the present embodiment, the wire feed channel 466 includes: a guide section 4661 and a conveying section 4662; the conveying section 4662 is fixedly arranged inside the carrying shell 41, the conveying section 4662 is in the shape of a circular tube, and the head end port of the conveying section 4662 is connected with the wire outlet hole 43 for guiding the welding wire 8; the guide section 4661 is fixedly arranged at the tail end of the conveying section 4662, the guide section 4661 is in the shape of a funnel, the input port of the guide section 4661 is connected with the gap between the first transmission belt 463 and the second transmission belt 465, and the output port of the guide section 4661 is connected with the tail end port of the conveying section 4662 for guiding the welding wire 8.

[0030] Further, if Figures 3-5 As shown in Figures 7 and 8, the wire feeding assembly further includes: a partition 467, an assembly hole 468 and a filler (not shown in the figure); the partition 467 is fixedly arranged on the inner wall of the supporting shell 41, and the partition 467 is arranged along the radial direction of the supporting shell 41 to wipe off the pollutants attached to the surface of the welding wire 8; the assembly hole 468 is opened on the partition 467; the filler is arranged between the partition 467 and the top wall of the inner cavity of the supporting shell 41, and the welding wire 8 passes through the filler and the assembly hole 468 in turn.

[0031] When the wire feeding device 4 conveys the welding wire 8, the first motor drives the first pulley 462 to rotate. Under the transmission of the first transmission belt 463, while several first pulleys 462 rotate synchronously, the first transmission belt 463 mounted on several first pulleys 462 and the second transmission belt 465 mounted on several second pulleys 464 are used to clamp and transmit the welding wire 8 passing through the first transmission belt 463 and the second transmission belt 465, so that the head end of the welding wire 8 passes through the wire inlet channel 466 and the wire outlet hole 43 in turn, and is finally output through the wire outlet hole 43.

[0032] Further, if Figures 3 to 6 As shown, the wire outlet angle adjustment component includes: a guide notch 471, a rotating shaft 472, a baffle 473, a first linear module 474, a slider 475 and a connecting rod 476; the guide notch 471 is opened at the bottom of the bearing shell 41, the guide notch 471 is exposed to the side wall surface of the bearing shell 41, and the guide notch 471 is connected to the wire outlet hole 43; the rotating shaft 472 is fixedly arranged at the bottom of the bearing shell 41, and the rotating shaft 472 is arranged along the radial direction of the bearing shell 41; the middle section of the baffle 473 is rotatably connected to the rotating shaft 472; the first linear module 474 is fixedly arranged on the bearing shell 41, and the first linear module 474 is arranged along the axial direction of the bearing shell 41; the slider 475 is fixedly arranged at the execution end of the first linear module 474; one end of the connecting rod 476 is rotatably connected to the slider 475, and the other end of the connecting rod 476 is rotatably connected to the tail end of the baffle 473, which is used to drive the baffle 473 to flip.

[0033] In this embodiment, before welding, first, the wire feeding assembly drives the welding wire 8 to extend a certain distance along the guide of the wire outlet hole 43, and then the first linear module 474 drives the slider 475 to move, thereby using the connecting rod 476 to drive the baffle 473 to flip, and the baffle 473 is used to bend the welding wire 8 to a certain angle toward the guide notch 471. During welding, the first linear module 474 drives the slider 475 to move again, thereby using the connecting rod 476 to drive the baffle 473 to flip again, so that the head end of the baffle 473 is aligned with the bottom surface of the supporting shell 41. Vertically, the wire feeding assembly drives the welding wire 8 to extend along the guide of the wire outlet hole 43, so that the part of the welding wire 8 bent by the blocking piece 473 touches the welding pad position of the circuit board 7 heated by the electric soldering iron 3 in turn, so that the welding wire 8 is melted to form a linearly distributed solder point, thereby achieving the purpose of electrically connecting the two welding pads on the circuit board 7 with the welding wire 8. Next, the robot arm 2 controls the electric soldering iron 3 to separate from the soldering pad. After the linearly distributed solder points cool and solidify, the robot arm 2 controls the electric soldering iron 3 to move, and uses the electric soldering iron 3 to melt the welding wire 8 fixedly connected to the solder point, so that the welding wire 8 is separated from the solder point.

[0034] Further, if Figure 1 , 8 As shown, the carrying module 1 includes: an assembly bracket 11, a turntable 12, a second motor 13 and a pair of second linear modules 14; the turntable 12 is rotatably arranged on the assembly bracket 11; the second motor 13 is fixedly arranged on the assembly bracket 11, and the driving end of the second motor 13 is connected to the turntable 12 for driving the turntable 12 to rotate; a pair of second linear modules 14 are fixedly arranged at the bottom of the turntable 12, a pair of second linear modules 14 are arranged in parallel, and a pair of robotic arms 2 are respectively arranged at the execution ends of the pair of second linear modules 14.

[0035] Further, if Figure 1 As shown, it also includes: a conveying device 5 and a plurality of conveying jigs 6 . The plurality of conveying jigs 6 are arranged on the conveying device 5 for conveying the circuit board 7 .

[0036] Preferably, Figure 1 , 2As shown, the conveying device 5 includes: a mounting bracket 51, a plurality of first conveying wheels 52, a first conveying motor (not shown in the figure), a first conveying belt 53, a plurality of second conveying wheels (not shown in the figure), a second conveying belt (not shown in the figure) and a transmission shaft 54; the assembly bracket 11 is fixedly arranged on the mounting bracket 51; a plurality of first conveying wheels 52 are rotatably arranged on the mounting bracket 51, and a plurality of first conveying wheels 52 are sequentially distributed along the length direction of the mounting bracket 51; the first conveying motor is fixedly arranged on the mounting bracket 51, and the driving end of the first conveying motor is connected to one of the first conveying wheels 52, so as to drive the first The conveying wheel 52 rotates; the first conveying belt 53 is sleeved on a plurality of first conveying wheels 52, and the first conveying belt 53 passes through the inner cavity of the assembly bracket 11, and is used to transport the conveying jig 6; a plurality of second conveying wheels are rotatably arranged on the mounting bracket 51, and a plurality of second conveying wheels are distributed in sequence along the length direction of the mounting bracket 51; the two ends of the transmission shaft 54 ​​are respectively connected to one of the first conveying wheels 52 and the second conveying wheel, and are used to drive the second conveying wheel to rotate synchronously with the first conveying wheel 52; the second conveying belt is sleeved on a plurality of second conveying wheels, and the second conveying belt passes through the inner cavity of the assembly bracket 11, and is used to transport the conveying jig 6.

[0037] Further, if Figure 1 , 9 As shown in Figures 11, the conveying fixture 6 includes: a bearing bracket 61, a flip bracket 62, a pair of first guide holes 63, a pair of locking holes 64 and a plurality of positioning components 65; the flip bracket 62 movable cover is arranged on the top of the bearing bracket 61, one side of the flip bracket 62 is hinged to one side of the bearing bracket 61, and the circuit board 7 is movably arranged in the inner cavity of the flip bracket 62 for carrying the circuit board 7; a pair of first guide holes 63 are provided on the bearing bracket 61, the first guide holes 63 are oblong holes, and the pair of first guide holes 63 are arranged in parallel; a pair of locking holes 64 are provided on the flip bracket 62, and the positions of the pair of locking holes 64 and the pair of first guide holes 63 correspond one by one; a plurality of positioning components 65 are arranged on the bearing bracket 61, any one of the positioning components 65 connects the pair of first guide holes 63 and the pair of locking holes 64, and the positioning component 65 is connected to the circuit board 7 for positioning the circuit board 7.

[0038] Preferably, Figure 1 , 9 As shown in FIG. 11 , the conveying fixture 6 further includes: a pair of racks 611, the pair of racks 611 are fixedly arranged on the supporting bracket 61, and the pair of racks 611 are respectively engaged with the tooth grooves opened on the outer ring surface of the first conveyor belt 53 and the second conveyor belt, so as to position the supporting bracket 61.

[0039] Further, if Figure 1 , 9As shown in Figure 11, the positioning assembly 65 includes: a guide rod 651, a pair of locking rods 652, a second guide hole 653, a plurality of nuts 654 and a plurality of hand screws 655; the guide rod 651 is movably arranged at the bottom of the supporting bracket 61, and the two ends of the guide rod 651 are respectively slidably connected with the pair of second guide holes 653; the pair of locking rods 652 are respectively rotatably arranged at the two ends of the guide rod 651, and the driving end of any locking rod 652 protrudes from the bottom surface of the guide rod 651, and the clamping end of any locking rod 652 passes through the first guide hole 63 and the corresponding locking hole 654. 4 is connected to lock the bearing bracket 61 and the flip bracket 62; a second guide hole 653 is opened on the guide rod 651, and the second guide hole 653 is arranged along the length direction of the guide rod 651; a plurality of nuts 654 are arranged in the second guide holes 653, and any nut 654 is slidably connected to the second guide hole 653; a plurality of hand screws 655 are respectively arranged on the plurality of nuts 654, and any hand screw 655 is threadedly connected to the corresponding nut 654, and the top end of any hand screw 655 abuts against the circuit board 7, so as to press and position the circuit board 7.

[0040] Preferably, Figures 9 to 12 As shown, the hand screw 655 includes: a screw rod 6551 and an elastic gasket 6552. The screw rod 6551 is threadedly connected to the nut 654. The elastic gasket 6552 is fixedly arranged at the end of the screw rod 6551. The elastic gasket 6552 abuts against the components to be welded on the circuit board 7, and is used to press and position the components to be welded.

[0041] Preferably, Fig. 9 , 11 As shown in Figure 13, the locking rod 652 includes: a driving section 6521, a connecting section 6522 and a clamping section 6523; the connecting section 6522 is rotatably arranged at one end of the guide rod 651; the driving section 6521 is fixedly arranged at the bottom end of the connecting section 6522, the driving section 6521 is a prism, and the driving section 6521 protrudes from the bottom surface of the guide rod 651; the clamping section 6523 is fixedly arranged at the top end of the connecting section 6522, and the radial cross-sectional shape of the clamping section 6523 is The locking hole 64 is elliptical in shape, and the radial cross-section of the inner cavity of the locking hole 64 is T-shaped. The short axis radius of the snap-in section 6523 is not greater than the width of the lower cavity of the locking hole 64. The long axis radius of the snap-in section 6523 is greater than the width of the lower cavity of the locking hole 64, and is not greater than the width of the upper cavity of the locking hole 64. When the flip bracket 62 is covered on the top of the supporting bracket 61, the snap-in section 6523 is located in the upper cavity of the locking hole 64, and is used to lock the flip bracket 62 and the supporting bracket 61.

[0042] Above, refer to Figures 1 to 13 The universal circuit board soldering device according to the embodiment of the present invention is described, which has the following beneficial effects: 1. The present invention arranges the electric soldering iron 3 and the wire feeding device 4 on two robot arms 2 respectively to increase the freedom of the electric soldering iron 3 and the wire feeding device 4 during the welding process, so that the device can be applied to a variety of welding methods for welding the circuit board 7. For example, the device can be applied to spot welding, drag welding and other welding methods at the same time, thereby enhancing the functional diversity of the device and solving the defect of single functionality existing in the prior art.

[0043] 2. The wire feeding device 4 of the present invention is provided with a wire outlet angle adjustment component at the wire outlet hole 43 of the bearing shell 41, and the wire feeding component is used to transmit the welding wire 8, so that when the welding wire 8 is output through the wire outlet hole 43, the blocking piece 473 can be used to first bend the welding wire 8 into a certain angle, and then the welding wire 8 is driven to be output along the wire outlet hole 43 only by the wire feeding component, so that the melted welding wire 8 can be linearly distributed on the circuit board 7, which greatly reduces the vibration generated when the robot arm 2 drives the wire feeding device 4 to move during the welding process, and prevents the welding wire 8 that is linearly distributed on the circuit board 7 from being broken after being melted.

[0044] 3. The present invention provides a first accommodating groove 4621 on the first pulley 462, a second accommodating groove 4641 on the second pulley 464, and adopts an elastic first transmission belt 463 and a second transmission belt 465, so that when the first transmission belt 463 and the second transmission belt are clamping and transmitting the welding wire 8, the first transmission belt 463 and the second transmission belt 465 are used to press the welding wire 8 straight, thereby improving the welding accuracy of the device.

[0045] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A universal circuit board soldering device, characterized in that: Includes: a carrying module, a pair of robotic arms, a wire feeding device and an electric soldering iron; The pair of mechanical arms are arranged on the carrying module; The electric soldering iron is arranged at the execution end of one of the mechanical arms and is used for soldering the circuit board; The wire feeding device is arranged at the execution end of the other mechanical arm, and is used to provide welding wire for the electric soldering iron; The wire feeding device comprises: a bearing shell, a wire inlet hole, a wire outlet hole, a bearing seat, an I-shaped wheel, a wire feeding assembly and a wire outlet angle adjustment assembly; The bearing housing is fixedly arranged at the execution end of the mechanical arm; The wire entry hole is opened at the top of the bearing shell, and the wire entry hole passes through the outer wall of the bearing shell and communicates with the inner cavity of the bearing shell; The wire outlet hole is provided at the bottom of the bearing shell, and the wire outlet hole penetrates the outer wall of the bearing shell and communicates with the inner cavity of the bearing shell; The bearing seat is fixedly arranged on the top of the bearing housing; The I-shaped wheel is rotatably arranged on the bearing seat, the welding wire is rolled up on the I-shaped wheel, and the head end of the welding wire passes through the wire inlet hole and the wire outlet hole in sequence and extends out of the bottom surface of the bearing shell; The wire feeding assembly is arranged inside the bearing shell, and the wire feeding assembly is connected to the welding wire and is used to transmit the welding wire; The wire outlet angle adjustment module is arranged on the carrying shell, and is used to adjust the output angle of the welding wire through the wire outlet hole.

2. The universal circuit board soldering device as claimed in claim 1, characterized in that: The wire feeding assembly comprises: a bearing plate, a plurality of first pulleys, a first motor, a first transmission belt, a plurality of second pulleys, a second transmission belt and a wire feeding channel; The bearing plate is fixedly arranged on the inner wall of the bearing shell; The plurality of first pulleys are rotatably disposed on the bearing plate, and the plurality of first pulleys are distributed in a line along the axial direction of the bearing shell; The first motor is fixedly arranged on the bearing plate, and a driving end of the first motor is connected to one of the first pulleys for driving the first pulley to rotate; The first transmission belt is sleeved on the plurality of first pulleys and is used to drive the plurality of first pulleys to rotate synchronously; The plurality of second pulleys are rotatably disposed on the bearing plate, and the plurality of second pulleys are distributed in a straight line along the axial direction of the bearing shell; The second transmission belt is sleeved on the plurality of second pulleys, the second transmission belt is located on one side of the first transmission belt, the welding wire passes between the second transmission belt and the first transmission belt, and the outer surface of the welding wire abuts against the outer annular surfaces of the second transmission belt and the first transmission belt; The wire feeding channel is fixedly arranged on the inner wall of the bearing shell, the output end of the wire feeding channel is connected with the wire outlet hole, and the welding wire passes through the inner cavity of the wire feeding channel.

3. The universal circuit board soldering device as claimed in claim 2, characterized in that: A first accommodating groove is provided on the circumferential side wall of the first pulley, the first accommodating groove is arranged along the circumference of the first pulley, and the first accommodating groove is a V-shaped groove. A second accommodating groove is provided on the circumferential side wall of the second pulley, the second accommodating groove is arranged along the circumference of the second pulley, and the second accommodating groove is a V-shaped groove, and both the first transmission belt and the second transmission belt are elastic belts.

4. The universal circuit board soldering device as claimed in claim 2, characterized in that: The wire feeding assembly further comprises: a partition, an assembly hole and a filler; The partition is fixedly arranged on the inner wall of the bearing shell, and the partition is arranged along the radial direction of the bearing shell; The assembly hole is opened on the partition; The filler is arranged between the partition plate and the inner cavity top wall of the bearing shell, and the welding wire passes through the filler and the assembly hole in sequence.

5. The universal circuit board soldering device as claimed in claim 2, characterized in that: The wire outlet angle adjustment assembly comprises: a guide notch, a rotating shaft, a baffle, a first linear module, a slider and a connecting rod; The guide notch is provided at the bottom of the bearing shell, the guide notch is exposed on the side wall surface of the bearing shell, and the guide notch is communicated with the wire outlet hole; The rotating shaft is fixedly arranged at the bottom of the bearing shell, and the rotating shaft is arranged along the radial direction of the bearing shell; The middle section of the baffle is rotatably connected to the rotating shaft; The first linear module is fixedly arranged on the bearing housing, and the first linear module is arranged along the axial direction of the bearing housing; The slider is fixedly arranged at the execution end of the first linear module; One end of the connecting rod is rotatably connected to the sliding block, and the other end of the connecting rod is rotatably connected to the tail end of the blocking piece, so as to drive the blocking piece to flip.

6. The universal circuit board soldering device as claimed in claim 1, characterized in that: The bearing module comprises: an assembly bracket, a turntable, a second motor and a pair of second linear modules; The turntable is rotatably arranged on the assembly bracket; The second motor is fixedly mounted on the assembly bracket, and a driving end of the second motor is connected to the turntable to drive the turntable to rotate; The pair of second linear modules are fixedly arranged at the bottom of the turntable, the pair of second linear modules are arranged in parallel, and the pair of mechanical arms are respectively arranged at the execution ends of the pair of second linear modules.

7. The universal circuit board soldering device as claimed in claim 1, characterized in that: It also includes: a conveying device and a plurality of conveying jigs, wherein the plurality of conveying jigs are arranged on the conveying device and are used to convey the circuit board.

8. The universal circuit board soldering device as claimed in claim 7, characterized in that: The conveying fixture comprises: a bearing bracket, a flip bracket, a pair of first guide holes, a pair of locking holes and a plurality of positioning components; The flip bracket movable cover is arranged on the top of the bearing bracket, one side of the flip bracket is hinged to one side of the bearing bracket, and the circuit board is movably arranged in the inner cavity of the flip bracket for carrying the circuit board; The pair of first guide holes are provided on the bearing bracket, the first guide holes are oblong holes, and the pair of first guide holes are arranged in parallel; The pair of locking holes are provided on the flip bracket, and the positions of the pair of locking holes correspond to the positions of the pair of first guide holes one by one; The plurality of positioning components are arranged on the bearing bracket, any one of the positioning components connects the pair of first guide holes and the pair of locking holes, and the positioning component is connected to the circuit board for positioning the circuit board.

9. The universal circuit board soldering device as claimed in claim 8, characterized in that: The positioning assembly comprises: a guide rod, a pair of locking rods, a second guide hole, a plurality of nuts and a plurality of hand screws; The guide rod is movably arranged at the bottom of the bearing bracket, and both ends of the guide rod are slidably connected to the pair of second guide holes respectively; The pair of locking rods are rotatably disposed at the two ends of the guide rod, respectively, a driving end of any one of the locking rods protrudes from the bottom surface of the guide rod, and a clamping end of any one of the locking rods passes through the first guide hole and is connected to the corresponding locking hole, so as to lock the bearing bracket and the flip bracket; The second guide hole is formed on the guide rod, and the second guide hole is arranged along the length direction of the guide rod; The plurality of nuts are arranged in the second guide hole, and any one of the nuts is slidably connected to the second guide hole; The plurality of hand screws are respectively arranged on the plurality of nuts, any one of the hand screws is threadedly connected with the corresponding nut, and the top end of any one of the hand screws abuts against the circuit board to press and position the circuit board.

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