CN109732164B - Laser welding machine - Google Patents

Abstract

The invention provides a laser welding machine which comprises a rack, a laser welding module, a tinning module, a workbench, a feeding platform, a feeding manipulator, a discharging platform and a discharging manipulator, wherein a cross beam is arranged at the top of the rack, and the laser welding module and the tinning module are both arranged on the cross beam in a sliding manner; the workstation sets up in the frame, and feeding platform sets up the one end in the frame, and feeding manipulator is used for snatching the transportation to the workstation from feeding platform with treating the processing product on, and ejection of compact platform sets up the other end in the frame, and ejection of compact manipulator is used for snatching the transportation to ejection of compact platform from the workstation with the product that finishes processing. According to the laser welding machine, the laser welding module and the tin coating module are arranged on the cross beam in a sliding mode to electrically weld the first FPC board and the second FPC board at one end of the display module, and the welding mode is high in welding precision and efficiency.

Description

Laser welding machine

Technical Field

The invention relates to the field of processing equipment of display devices, in particular to a high-efficiency and high-compatibility laser welding machine for welding an FPC (flexible printed circuit) board of a display module.

Background

Laser welding is an efficient precision welding method using a laser beam with high energy density as a heat source, wherein the surface of a workpiece is heated by laser radiation, the surface heat is diffused inwards by heat conduction, and the workpiece is melted to form a specific molten pool by controlling parameters such as the width, energy, peak power, repetition frequency and the like of laser pulses.

In the prior art, the glass module on the display module and the two FPC boards of the backlight module are electrically welded by hand, or the product is positioned and fixed on a welding machine table manually, and then the welding machine table is controlled to perform welding operation, so that the welding method has low welding precision and low efficiency.

Therefore, it is necessary to provide a laser welding machine to solve the above technical problems.

Disclosure of Invention

The invention provides a laser welding machine, which is used for electrically welding a first FPC (flexible printed circuit) board and a second FPC (flexible printed circuit) board at one end of a display module by arranging a laser welding module and a tinning module on a cross beam in a sliding manner, so as to solve the problems of low welding precision and low efficiency caused by manual welding or manual positioning and fixing of a product on a welding machine table and then control of the welding machine table for welding operation in the prior art.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a laser welding machine for carry out the electric property welding to first FPC board and the second FPC board of display module one end, the welded area of first FPC board with the second FPC board stacks up the setting, and it includes:

the device comprises a rack, wherein a cross beam is arranged at the top of the rack;

the laser welding module is arranged on the cross beam in a sliding mode;

the tinning module is arranged on the cross beam in a sliding manner;

the workbench is arranged in the rack and is positioned below the cross beam;

the feeding platform is used for inputting a product to be processed and is arranged at one end of the rack;

the feeding mechanical arm is used for grabbing and conveying the product to be processed to the workbench from the feeding platform;

the discharging platform is used for outputting the processed product and is arranged at the other end of the rack; and

and the discharging manipulator is used for grabbing and transporting the processed product to the discharging platform from the workbench.

In the invention, the workbench comprises a fixed seat, a fixed platform plate and a turnover platform plate, the extending direction of the feeding platform is taken as the X direction, the direction vertical to the plate surface of the fixed platform plate is taken as the Z direction, and one direction vertical to the X direction and the Z direction is taken as the Y direction;

the fixed platform board is fixedly connected to the fixed seat and used for supporting the first FPC board and the second FPC board, and the turnover platform board is rotatably connected to the fixed seat and located at one end of the fixed platform board and used for supporting the display module;

the workstation is still including being used for the adjustment the guiding mechanism of second FPC board, guiding mechanism includes drive module, goes up the clamping piece and clamping piece down, drive module is used for the drive go up the clamping piece with the clamping piece removes and rotates down, it is located to go up the clamping piece fixed platform board's below is used for following fixed platform board with the clearance district of upset platform board is cut into with second FPC board is picked up extremely on the top surface of first FPC board, the clamping piece is located down fixed platform board's below be used for with it is common right to go up the clamping piece second FPC board forms the centre gripping, and then adjusts the position of second FPC board with first FPC board is counterpointed.

The fixed platform board is provided with a first suction hole for tightly sucking the first FPC board, and the turnover platform board is provided with a second suction hole for tightly sucking the display module;

the fixed platform board comprises a first supporting surface for supporting the first FPC board and the second FPC board, the turnover platform board comprises a second supporting surface for supporting the display module, and the turnover platform board comprises a first turnover position and a second turnover position on a turnover track;

when the turnover platform plate is positioned at the first turnover position, the first supporting surface is parallel to the second supporting surface;

when the turnover platform plate is positioned at the second turnover position, an included angle of 255-265 degrees is formed between the first supporting surface and the second supporting surface, so that the interference of the display module on the lifting operation of the upper clamping piece is avoided.

In addition, the workbench further comprises a first pressing mechanism and a second pressing mechanism which are used for pressing the second FPC board;

the first pressing mechanism comprises a first belt driving component, a first lifting part, a first extension arm and a pressing block, the first lifting part is connected with a first driving belt of the first belt driving component to obtain movement along the X direction, one end of the first extension arm is connected with the first lifting part to obtain lifting movement along the Z direction, and the other end of the first extension arm is detachably connected with the pressing block;

the second hold-down mechanism comprises a first lead screw nut component, a second lifting part, a second extension arm and a hold-down piece, wherein the second lifting part is connected with the first lead screw nut component to obtain an edge, the X direction moves, one end of the second extension arm is connected with the second lifting part to obtain an edge, the Z direction moves in a lifting mode, and the other end of the second extension arm is detachably connected with the hold-down piece.

Furthermore, the fixed seat comprises a bottom plate, a first substrate and a second substrate, two ends of the first substrate are fixedly arranged on the bottom plate through support columns, two ends of the second substrate are fixedly arranged on the bottom plate through support plates, and the fixed platform plate is detachably connected to the first substrate;

a guide rail and a guide groove are arranged on the second substrate in parallel, the first belt driving assembly is arranged on the second substrate, the first lifting part is connected to the guide rail in a sliding manner through a sliding block, the first lead screw nut assembly comprises a first motor, a first transmission belt, a first lead screw and a first nut member in transmission connection with the first lead screw, the first lead screw is rotatably arranged at the top of the second substrate, the first motor is arranged at the bottom of the second substrate, two ends of the first transmission belt are respectively in transmission connection with an output shaft of the first motor and the first lead screw, and the first nut member is connected in the guide groove in a sliding manner;

extension blocks are arranged at two ends of the top of the first substrate, the extension blocks extend out of the first substrate, and two ends of the turnover platform plate are rotatably connected with the extension blocks through extension rods;

one the inboard fixedly connected with extension board of backup pad, the cylinder telescopic link one end with the extension board rotates to be connected, the other end and one the extension rod rotates to be connected, with through the flexible drive of cylinder telescopic link the rotation of upset platform board, in one end the extension piece is last to be fixed to be provided with the stopper, the stopper is used for restricting the upset board rotates extremely first transposition.

In addition, first extension arm includes that first segmentation portion and detachable connect and is in second segmentation portion on the first segmentation portion or/and the second is provided with the rectangular shape connecting hole that is used for carrying on fixed connection on segmenting the portion, the extending direction of rectangular shape connecting hole with the Y direction is unanimous, and then is used for adjusting the compact heap is to the position that compresses tightly of second FPC board.

In the invention, the driving module comprises a first sliding part, a second sliding part, a rotating part, a third lifting part and a fourth lifting part, the second sliding part is arranged on the first sliding part, the rotating part is arranged on the second sliding part, the third lifting part is arranged on the rotating part, the fourth lifting part is arranged on the third lifting part, the upper clamping piece is connected with the third lifting part, and the lower clamping piece is connected with the fourth lifting part;

the first sliding part slides along the X direction, the second sliding part slides along the Y direction, the third lifting part lifts along the Z direction, the fourth lifting part lifts along the Z direction, and the rotation axis of the rotating part is consistent with the Z direction;

the first sliding part is driven by a second lead screw nut component arranged on a bottom plate of the fixed seat, the second lead screw nut component comprises a second motor, a second transmission belt, a second lead screw and a second nut piece in transmission connection with the second lead screw, the second lead screw is rotatably arranged on the bottom plate, the second motor is arranged on the bottom plate, two ends of the second transmission belt are respectively in transmission connection with an output shaft of the second motor and the second lead screw, and the second motor and the second lead screw are positioned on the same side of the second transmission belt;

the second sliding part is driven by a third lead screw nut component arranged on the first sliding part, the third lead screw nut component comprises a third motor, a third transmission belt, a third lead screw and a third nut member in transmission connection with the third lead screw, the third lead screw is rotatably arranged on the first sliding part, the third motor is arranged on the first sliding part, two ends of the third transmission belt are respectively in transmission connection with an output shaft of the third motor and the third lead screw, and the third motor and the third lead screw are positioned on the same side of the third transmission belt;

the rotating part is by setting up second belt drive assembly drive on the second sliding part, second belt drive assembly includes fourth motor, runner, roating seat and fourth driving belt, the fourth motor with the roating seat is all fixed to be set up on the second sliding part, the runner transmission is connected on the rotating part, the rotating part with the roating seat is connected in order to obtain the support, fourth driving belt's both ends are the transmission respectively and are connected the output shaft of fourth motor with the runner, the diameter of runner is greater than the diameter of the output shaft of fourth motor.

Furthermore, one end of the first sliding part is connected with the second lead screw nut component, the second motor is positioned below one end of the first sliding part, which is far away from the connection of the second lead screw nut component, and the third motor is positioned below the second sliding part;

the rotating part comprises a transverse plate and a vertical plate connected to one end of the top surface of the transverse plate, the rotating seat is connected below the transverse plate, and the rotating wheel is connected above the transverse plate;

the third lifting part comprises a fifth motor, a fifth transmission belt, a third extension arm, a fourth lead screw and a fifth nut member in transmission connection with the fourth lead screw, the fourth lead screw is connected to the transverse plate in a penetrating and rotating mode, one side of the fifth nut member is connected with the vertical plate in a sliding mode, the fifth motor is located on the top surface of the transverse plate, two ends of the fifth transmission belt are respectively in transmission connection with an output shaft of the fifth motor and the fourth lead screw, one end of the third extension arm is connected to the top of the fifth nut member, and the other end of the third extension arm is detachably connected with the upper clamping piece;

an output shaft of the fifth motor penetrates and extends below the transverse plate, the fifth transmission belt is located below the transverse plate, the fifth motor, the fourth lead screw and the rotating wheel are distributed on the transverse plate in a triangular shape, the fifth motor is located on one side of the fourth motor, and the fourth lead screw is located on one side of the rotating wheel.

Further, the lower clamping piece comprises a first U-shaped main body part and first end parts connected to two ends of the first main body part, the two first end parts extend reversely, the first end part at the left end is used for clamping the second FPC board at the right side, and the first end part at the right end is used for clamping the second FPC board at the left side;

go up the clamping piece and include the second main part and connect the second tip at second main part both ends, two the second tip is reverse to be extended, the homonymy the second tip with the first end is relative, the second main part with the U-shaped groove at first main part middle part is relative, and the left end the second tip is used for right side the centre gripping operation is picked up to the second FPC board, and the right-hand member the second tip is used for left the centre gripping operation is picked up to the second FPC board.

In the invention, a correction assembly is arranged on the feeding platform and comprises a support beam, a third belt driving assembly, a first positioning block, a cylinder assembly and a second positioning block;

the supporting beam is positioned above the feeding platform, the third belt driving assembly is arranged on the supporting beam, the first positioning block is arranged on the supporting beam in a sliding mode, the first positioning block is connected with a third driving belt of the third belt driving assembly to obtain sliding driving force, the air cylinder assembly is fixedly arranged on the rack, one end of the second positioning block is arranged on the rack in a sliding mode, and the second positioning block is connected with the air cylinder assembly to obtain sliding driving force;

the first positioning block and the second positioning block slide in parallel to the table top of the feeding platform, and the sliding directions of the first positioning block and the second positioning block are perpendicular to each other.

Compared with the prior art, the invention has the beneficial effects that: according to the laser welding machine, the laser welding module and the tinning module are arranged on the cross beam in a sliding mode to electrically weld the first FPC board and the second FPC board at one end of the display module, so that the welding precision and the efficiency of a welding mode are high;

the workbench comprises a fixed platform board for supporting the first FPC board and the second FPC board and a turnover platform board for supporting the display module, wherein the turnover platform board can be kept at a first turnover position if the display module can not interfere with the lifting operation of the upper clamping piece, and can be turned to a second turnover position to avoid interference if the display module can interfere with the lifting operation of the upper clamping piece, so that the laser welding machine can process products of various models, and the processing range of the laser welding machine is enlarged;

in addition, the workbench of the laser welding machine is compact in structure and small in size, so that the whole size is small, the installation is convenient, the space and the cost are saved, and meanwhile, the transportation stroke can be shortened, so that the processing efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.

FIG. 1 is a schematic structural view of a preferred embodiment of a laser welder of the present invention.

FIG. 2 is a top view of a laser welder of the present invention.

FIG. 3 is a schematic structural view of a feeding platform of the laser welder of the present invention.

FIG. 4 is a schematic view of the structure of the worktable of the laser welding machine of the present invention.

Fig. 5 is a schematic structural diagram of the fixing base, the fixed platen plate and the turnover platen plate of the laser welding machine of the present invention.

FIG. 6 is a schematic structural diagram of a first pressing mechanism and a second pressing mechanism of the laser welding machine of the present invention.

FIG. 7 is a schematic view of the configuration of the first extension arm of the laser welder of the present invention.

FIG. 8 is a schematic structural view of an adjusting mechanism of the laser welding machine of the present invention.

Fig. 9 is an enlarged schematic view of the adjustment mechanism of fig. 8.

Fig. 10 is a schematic structural diagram of a display module in the prior art.

Fig. 11 is a schematic structural view of a worktable of the laser welding machine supporting a display module according to the present invention.

Fig. 12 is a schematic structural diagram of another display module in the prior art.

Fig. 13 is a schematic structural view of the worktable of the laser welding machine of the present invention when performing a flip operation on the display module.

Fig. 14 is a schematic structural view of an upper clip and a lower clip of the laser welder of the present invention.

FIG. 15 is a schematic structural diagram of a tin-coating module of the laser welding machine of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the prior art, the glass module on the display module and the two FPC boards of the backlight module are electrically welded by hand, or the product is positioned and fixed on a welding machine table manually, and then the welding machine table is controlled to perform welding operation, so that the welding method has low welding precision and low efficiency.

The preferred embodiment of the laser welder according to the present invention that solves the above technical problems is as follows.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The terms "first," "second," and the like in the terms of the invention are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.

The preferred embodiment of the laser welding machine provided by the invention is as follows: a laser welding machine is used for electrically welding a first FPC board 271 and a second FPC board 272 at one end of a display module 27, and welding areas of the first FPC board 271 and the second FPC board 272 are arranged in a laminated mode;

reference may be made to fig. 10, in which fig. 10 is a schematic structural diagram of a display module in the prior art;

it should be noted that, in the actual production process, the lamination sequence of the first FPC board 271 and the second FPC board 272 is not completely determined, and there are two cases at the left and right ends of the display module in fig. 10, that is, the second FPC board 272 is located on the top surface of the first FPC board 271, or the second FPC board 272 is located on the bottom surface of the first FPC board 271, in this embodiment, the second FPC board 272 is located on the top surface of the first FPC board 271 in a forward state, that is, a soldering operation can be performed in the forward state, and when the second FPC board 272 is located on the bottom surface of the first FPC board 271, the second FPC board 272 needs to be lifted to the top surface of the first FPC board 271 by the upper clip 4K;

however, in practice, one end of the display module is not limited to connecting two sets of FPCs as shown in fig. 10, and most of them only connects one set of FPCs, that is, one first FPC board 271 and one second FPC board 272 are formed as one set.

Referring to fig. 11 and 12, fig. 11 is a schematic structural diagram of a worktable of a laser welding machine supporting a display module according to the present invention, and fig. 12 is a schematic structural diagram of another display module in the prior art;

on the other hand, the display module also includes two cases, one is as shown in fig. 11, the end face of the display module 27 connected with the FPC board is a plane, and there is no extension, so that the laser welding machine of the present invention can directly perform the lifting operation on the second FPC board 272 to adjust the lamination sequence of the first FPC board 271 and the second FPC board 272;

secondly, as shown in fig. 12, the end face of the display module 27 connected to the FPC board has an extension, so that the laser welding machine of the present invention cannot directly perform a picking operation on the second FPC board 272 to adjust the lamination sequence of the first FPC board 271 and the second FPC board 272, and therefore the laser welding machine of the present invention is provided with the fixed platform board 25 and the flip platform board 26, so that the display module 27 is prevented from interfering with the picking operation by flipping the display module 27.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of a preferred embodiment of a laser welder of the present invention, and fig. 2 is a top view of the laser welder of the present invention.

The laser welding machine comprises a rack 11, a laser welding module 12, a tin feeding module 13, a workbench 14, a feeding platform 15, a feeding manipulator 16, a discharging platform 17 and a discharging manipulator 18.

Wherein, a cross beam 111 is arranged at the top of the frame 11;

the laser welding module 12 is arranged on the cross beam 111 in a sliding manner;

the tinning module 13 is arranged on the cross beam 111 in a sliding manner, and comprises a hot soldering head 131, a tin feeding mechanism 132 and a CCD camera 134 for shooting the position of a welding spot and assisting in position adjustment, wherein the hot soldering head 131 is detachably connected to an arc groove on the adjusting disc 133, so that the tinning angle of the hot soldering head 131 can be adjusted;

the workbench 14 is arranged in the frame 11 and below the cross beam 111;

the feeding platform 15 is arranged at one end of the frame 11 and is used for inputting a product to be processed;

the feeding mechanical arm 16 is used for grabbing and transporting the product to be processed from the feeding platform 15 to the workbench 14;

the discharging platform 17 is arranged at the other end of the frame 11 and used for outputting the processed products;

and the discharging manipulator 18 is used for grabbing and transporting the processed product from the workbench 14 to the discharging platform 17.

Specifically, a laser welding module 12 is slidably arranged on one side of the cross beam 111, the laser welding module 12 is driven by a motor 121 at one end, and the motor 121 can drive the laser welding module 12 through a screw nut assembly without limitation;

the other side is provided with two tinning modules 13 in a sliding manner, the two tinning modules 13 are respectively driven by motors 131 at two ends, and the motors 131 can drive the tinning modules 13 through a screw nut assembly without limitation;

four work tables 14 are sequentially arranged in the frame 11 along the extending direction of the cross beam 111, the work tables 14 are arranged on the sliding module 141, and the sliding module 141 drives the work tables to move along the Y direction, so that the display module can be opposite to the position of the tinning module 13 or the laser welding module 12, and then tinning operation or welding operation is performed, and the processing efficiency is high.

It can be understood that the driving part of each module can be connected with a computer so as to realize the motion control of the whole machining operation.

Referring to fig. 4, 5, 8 and 9, fig. 4 is a schematic structural diagram of a worktable of a laser welding machine of the present invention, fig. 5 is a schematic structural diagram of a fixing base, a fixing platform plate and an overturning platform plate of the laser welding machine of the present invention, fig. 8 is a schematic structural diagram of an adjusting mechanism of the laser welding machine of the present invention, fig. 9 is an enlarged schematic structural diagram of the adjusting mechanism in fig. 8, and in addition, the X direction, the Y direction and the Z direction can refer to directions indicated by reference numerals XYZ in fig. 2 and 8.

The workbench 14 in this embodiment includes a fixed base, a fixed platform plate 25 and a turnover platform plate 26, the surface of the fixed platform plate 25 is parallel to the surface of the feeding platform 15, the extending direction of the feeding platform 15 is taken as the X direction, the direction perpendicular to the surface of the fixed platform plate 25 is taken as the Z direction, and one direction perpendicular to the X direction and the Z direction is taken as the Y direction;

the fixed platform board 25 is fixedly connected to the fixed base for supporting the first FPC board 271 and the second FPC board 272, and the turnover platform board 26 is rotatably connected to the fixed base and located at one end of the fixed platform board 25 for supporting the display module 27;

the workbench 14 further comprises an adjusting mechanism 2B for adjusting the second FPC board 272, the adjusting mechanism 2B comprises a driving module, an upper clamping piece 4K and a lower clamping piece 4L, the driving module is used for driving the upper clamping piece 4K and the lower clamping piece 4L to move and rotate, the upper clamping piece 4K is located below the fixed platform board 25 and used for cutting in the gap area between the fixed platform board 25 and the turnover platform board 26 to lift the second FPC board 272 to the upper side of the first FPC board 271, the lower clamping piece 4L is located below the fixed platform board 25 and used for clamping the second FPC board 272 together with the upper clamping piece 4K, and then the position of the second FPC board 272 is adjusted to be aligned with the first FPC board 271.

Wherein, a first suction hole for tightly sucking the first FPC board 271 is arranged on the fixed platform board 25, a second suction hole for tightly sucking the display module 27 is arranged on the turnover platform board 26, the first suction hole and the second suction hole can be connected with a vacuum device to generate suction force, and the first suction hole and the second suction hole are not marked in the figure;

referring to fig. 11 and 13, the turning platen 26 in fig. 11 is at the first turning position, and the turning platen 26 in fig. 13 is at the second turning position;

the fixed platform board 25 comprises a first supporting surface for supporting the first FPC board 271 and the second FPC board 272, the flip platform board 26 comprises a second supporting surface for supporting the display module 27, and the flip platform board 26 comprises a first flip bit and a second flip bit on the flip track;

when the roll-over platen 26 is in the first roll-over position, the first support surface is parallel to the second support surface;

when the turnover platform plate 26 is located at the second turnover position, an included angle of 255-265 degrees is formed between the first supporting surface and the second supporting surface, so that the interference of the display module 27 on the raising operation of the upper clamping piece 4K is avoided.

If the display module 27 is of the type shown in fig. 11, the upper clip 4K can pick up the second FPC board 272 when the flip platform 26 is located at the first flip position, and if the display module 27 is of the type shown in fig. 12, the flip platform 26 needs to be flipped to the second flip position to avoid interference of the display module, and then the upper clip 4K can pick up the second FPC board 272;

the arrangement of the turnover platform plate 26 enables the laser welding machine to process various types of products, thereby improving the processing range of the laser welding machine.

On the other hand, the fixing base in this embodiment includes a bottom plate 21, a first substrate 22 and a second substrate 23, two ends of the first substrate 22 are fixedly disposed on the bottom plate 21 through supporting pillars 211, two ends of the second substrate 23 are fixedly disposed on the bottom plate 21 through supporting plates 212, wherein the fixing platform plate 25 is detachably connected to the first substrate 22;

the first substrate 22 and the second substrate 23 can play a role in dividing and setting space, the height positions of the first substrate 22 and the second substrate 23 can be set according to specific component volumes, and the fixing seat in the embodiment has the advantages of compact structure, orderly distribution of components and high space utilization rate.

Referring to fig. 6 and 7, fig. 6 is a schematic structural view of a first pressing mechanism and a second pressing mechanism of a laser welding machine according to the present invention, and fig. 7 is a schematic structural view of a first extension arm of the laser welding machine according to the present invention.

The workbench 14 in this embodiment further includes a first pressing mechanism 28 and a second pressing mechanism 29 for pressing the second FPC board 272, wherein the first pressing mechanism 28 and the second pressing mechanism 29 press the second FPC board 272 onto the first FPC board 271 so as to fix the relative positions of the first FPC board 271 and the second FPC board 272, the first pressing mechanism 28 and the second pressing mechanism 29 are used for dealing with the situation that two ends of one side of the display module 27 are provided with FPC boards, and as shown in fig. 10, one side of the display module 27 is provided with two sets of FPC boards;

the first pressing mechanism 28 includes a first belt driving assembly, a first lifting portion 32, a first extension arm, and a pressing block 3A (the serial number 28 in fig. 6 also indicates the first extension arm), the first lifting portion 32 is connected to a first driving belt 31 of the first belt driving assembly to obtain movement along the X direction, the first driving belt 31 is driven by a corresponding motor 311 to operate, one end of the first extension arm is connected to the first lifting portion 32 to obtain lifting movement along the Z direction, and the other end is detachably connected to the pressing block 3A, so that the pressing block 3A with different lengths and widths can be replaced and used according to the size of the second FPC board;

the second pressing mechanism 29 includes a first lead screw nut component, a second lifting portion 39, a second extension arm, and a pressing piece 3B (the number 29 in fig. 6 also indicates the second extension arm), the second lifting portion 39 is connected to the first lead screw nut component to obtain movement along the X direction, one end of the second extension arm is connected to the second lifting portion 39 to obtain lifting movement along the Z direction, and the other end is detachably connected to the pressing piece 3B, so that the pressing piece 3B with different lengths and widths can be replaced and used according to the size of the second FPC board 272.

A guide rail 34 and a guide groove 381 are arranged on the second substrate 23 in parallel, a first belt driving assembly is arranged on the second substrate 23, the first lifting portion 32 is connected to the guide rail 34 in a sliding manner through a slider 33, the first lead screw nut assembly comprises a first motor 35, a first transmission belt 36, a first lead screw 37 and a first nut member 38 connected to the first lead screw 37 in a transmission manner, the first lead screw 37 is rotatably arranged at the top of the second substrate 23, the first motor 35 is arranged at the bottom of the second substrate 23, two ends of the first transmission belt 36 are respectively connected to an output shaft of the first motor 35 and the first lead screw 37 in a transmission manner, and the first nut member 38 is connected to the guide groove 381 in a sliding manner;

referring to fig. 5, the extending blocks 221 are disposed at two ends of the top of the first substrate 22, the extending blocks 221 extend out of the first substrate 22, and two ends of the turnover platform plate 26 are rotatably connected to the extending blocks 221 through the extending rods 261;

the inboard fixedly connected with extension board 24 of a backup pad 212, the one end of cylinder telescopic link 2A rotates with extension board 24 to be connected, and the other end rotates with an extension rod 261 to rotate through the flexible drive upset platform board 26 of cylinder telescopic link 2A, fixedly on the extension piece 221 of one end be provided with stopper 222, stopper 222 is used for restricting the upset board and rotates to first upset position.

In addition, the first extension arm includes a first segment 281 and a second segment 282 detachably connected to the first segment 281, a strip-shaped connection hole 283 for fixed connection is provided on the first segment 281 or/and the second segment 282, the extension direction of the strip-shaped connection hole 283 is consistent with the Y direction, and then the pressing position of the pressing block 3A on the second FPC board 272 can be adjusted by adjusting the relative connection position of the first segment 281 and the second segment 282.

Referring to fig. 8 and 9, the driving module in this embodiment includes a first sliding portion 41, a second sliding portion 46, a rotating portion, a third lifting portion, and a fourth lifting portion 4G, the second sliding portion 46 is disposed on the first sliding portion 41, the rotating portion is disposed on the second sliding portion 46, the third lifting portion is disposed on the rotating portion, the fourth lifting portion 4G is disposed on the third lifting portion, an upper clip 4K is connected to the third lifting portion, and a lower clip 4L is connected to the fourth lifting portion 4G;

the first sliding part 41 slides along the X direction, the second sliding part 46 slides along the Y direction, the third lifting part lifts along the Z direction, the fourth lifting part 4G lifts along the Z direction, and the rotation axis of the rotating part coincides with the Z direction, so that the driving module can drive the upper clamping piece 4K and the lower clamping piece 4L to move in the X direction, the Y direction and the Z direction and rotate around the rotation axis in the Z direction;

the first sliding part 41 is driven by a second lead screw nut assembly arranged on the bottom plate 21 of the fixed seat, the second lead screw nut assembly comprises a second motor 42, a second transmission belt 43, a second lead screw 44 and a second nut member 45 in transmission connection with the second lead screw 44, the second lead screw 44 is rotatably arranged on the bottom plate 21, the second motor 42 is arranged on the bottom plate 21, two ends of the second transmission belt 43 are respectively in transmission connection with an output shaft of the second motor 42 and the second lead screw 44, and the second motor 42 and the second lead screw 44 are positioned on the same side of the second transmission belt 43, so that the whole size along the extension direction of the second lead screw 44 can be shortened;

the second sliding part 46 is driven by a third screw nut assembly arranged on the first sliding part 41, the third screw nut assembly comprises a third motor 47, a third transmission belt 48, a third screw 49 and a third nut member in transmission connection with the third screw 49, the third screw 49 is rotatably arranged on the first sliding part 41, the third motor 47 is arranged on the first sliding part 41, two ends of the third transmission belt 48 are respectively in transmission connection with an output shaft of the third motor 47 and the third screw 49, and the third motor 47 and the third screw 49 are positioned on the same side of the third transmission belt 48, so that the overall size along the extension direction of the third screw 49 can be shortened;

the rotating part is driven by the second belt drive assembly who sets up on second sliding part 46, second belt drive assembly includes fourth motor 4B, runner 4D, roating seat 4E and fourth driving belt 4C, fourth motor 4B and roating seat 4E are all fixed to be set up on second sliding part 46, 4D transmission of runner is connected on the rotating part, the rotating part is connected in order to obtain the support with roating seat 4E, fourth motor 4B's output shaft and runner 4D are connected in the transmission respectively at fourth driving belt 4C's both ends, runner 4D's diameter is greater than the diameter of fourth motor 4B's output shaft, reduce the drive ratio, make the rotation regulation more meticulous.

Specifically, one end of the first sliding portion 41 is connected with the second lead screw nut assembly, the second motor 42 is located below one end of the first sliding portion 41, which is far away from the second lead screw nut assembly, the third motor 47 is located below the second sliding portion 46, and the second motor 42 and the third motor 47 are both arranged on the same side of the corresponding lead screws, so that the occupied area relative to the bottom plate 21 is small, and the overall structure is compact;

the rotating part comprises a transverse plate 4A1 and a vertical plate 4A2 connected to one end of the top surface of the transverse plate 4A1, a rotating seat 4E is connected below the transverse plate 4A1, and a rotating wheel 4D is connected above the transverse plate 4A 1;

the third lifting part comprises a fifth motor 4F, a fifth transmission belt, a third extension arm 4I, a fourth lead screw and a fifth nut piece 4H which is in transmission connection with the fourth lead screw, the fourth lead screw penetrates through and is rotatably connected to the transverse plate 4A1, one side of the fifth nut piece 4H is in sliding connection with the vertical plate 4A2, the fifth motor 4F is located on the top surface of the transverse plate 4A1, two ends of the fifth transmission belt are in transmission connection with an output shaft of the fifth motor 4F and the fourth lead screw respectively, one end of the third extension arm 4I is connected to the top of the fifth nut piece 4H, and the other end of the third extension arm 4I is detachably connected with an upper clamping piece 4K;

the output shaft of the fifth motor 4F runs through and extends below the transverse plate 4a1, the fifth transmission belt is located below the transverse plate 4a1, the fifth motor 4F, the fourth lead screw and the rotating wheel 4D are distributed on the transverse plate 4a1 in a triangular shape, the fifth motor 4F is located on one side of the fourth motor 4B, and the fourth lead screw is located on one side of the rotating wheel 4D, namely the fourth motor 4B, the fifth motor 4F, the fourth lead screw and the rotating wheel 4D are distributed in four corners, so that the overall size is small, and the structure is compact.

It should be emphasized that, according to the actual height requirement of the driving module, as shown in fig. 8, the fourth motor 4B may be disposed upside down, that is, the output shaft of the fourth motor 4B is located downward and is fixedly connected to the second sliding portion 46 through a bracket, and the fourth motor 4B, the fifth motor 4F, the fourth lead screw and the rotating wheel 4D are all located above the transverse plate 4a1, and at the same time, the height of the rotating base is lowered, so as to reduce the overall height.

Referring to fig. 14, fig. 14 is a schematic structural view of an upper clip and a lower clip of a laser welding machine according to the present invention.

The lower clip 4L in this embodiment includes a U-shaped first main body portion 51 and first end portions 52 connected to both ends of the first main body portion 51, the two first end portions 52 extending in opposite directions, the first end portion 52 at the left end being used for clamping the second FPC board 272 at the right side, and the first end portion 52 at the right end being used for clamping the second FPC board 272 at the left side;

the upper clip 4K includes a second main body portion 53 and second end portions 54 connected to two ends of the second main body portion 53, the two second end portions 54 extend in opposite directions, the second end portion 54 on the same side is opposite to the first end portion 52, the second main body portion 53 is opposite to the U-shaped groove in the middle of the first main body portion 51, the second end portion 54 on the left end is used for raising and clamping the second FPC board 272 on the right side, and the second end portion 54 on the right end is used for raising and clamping the second FPC board 272 on the left side.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a feeding platform of a laser welding machine according to the present invention.

In this embodiment, a calibration assembly 19 is disposed on the feeding platform 15, and the calibration assembly 19 includes a support beam 191, a third belt driving assembly, a first positioning block 194, a cylinder assembly 197, and a second positioning block 195;

the supporting beam 191 is positioned above the feeding platform 15, the third belt driving assembly is arranged on the supporting beam 191, the first positioning block 194 is slidably arranged on the supporting beam 191, the supporting beam 191 is provided with a guide strip 196 for limiting the sliding direction of the first positioning block 194, the first positioning block 194 is connected with the third driving belt 193 of the third belt driving assembly to obtain the sliding driving force, wherein the third driving belt 193 is driven by a motor 192, the cylinder assembly 197 is fixedly arranged on the rack 11, one end of the second positioning block 195 is slidably arranged on a connecting plate 198 fixedly connected with the rack 11, and the second positioning block 195 is connected with the cylinder assembly 197 to obtain the sliding driving force;

the first positioning block 194 and the second positioning block 195 slide to be parallel to the table top of the feeding platform 15, the sliding directions of the first positioning block 194 and the second positioning block 195 are perpendicular to each other, and the feeding product is positioned and corrected through the correcting component 19, so that the feeding manipulator 16 can accurately and stably grab the feeding product.

The working principle of the invention is as follows: firstly, the batch model information of the display module 27 is input to the computer in advance;

the display module 27 is input from the feeding platform 15, and then is positioned by blocking of the second positioning block 195 and squeezing of the first positioning block 194, and then is grasped and placed at the set positions on the fixed platform plate 25 and the turnover platform plate 26 by the feeding manipulator 16, and at this time, the turnover platform plate 26 is positioned at the first turnover position;

the first FPC board 271 is tightly sucked by the first suction hole on the fixed platform board 25, the display module 27 is tightly sucked by the second suction hole on the turnover platform board 26, and the turnover of the turnover platform board 26 is selectively controlled by the computer according to the received model information;

if the display module 27 is of the type shown in fig. 11, the turnover platform board 26 does not need to be turned over, the upper clip 4K moves to the position below the second FPC board 272 along the X direction, and then ascends to lift the second FPC board 272, and if the second FPC board 272 is located on the bottom surface of the first FPC board 271, the second FPC board 272 moves to the top surface of the first FPC board 271 after the lifting operation;

if the display module 27 is of the type shown in fig. 12, the turnover platform board 26 will drive the display module 27 to turn over from the first turnover position to the second turnover position, and then the upper clip 4K will move and rise to pick up the second FPC board 272;

wherein, the movement of the lower clip 4L and the upper clip 4K along the X direction and the Y direction is the same, after the raising operation, the lower clip 4L rises, and simultaneously the upper clip 4K falls to form a grip on the second FPC board 272;

during the lifting and clamping operation, the sliding module 141 drives the workbench to move, and the tinning module 13 moves along the beam 111, so that the display module 27 is positioned in the operating range below the tinning module 13;

then, the CCD camera 134 takes a picture of the solder joint positions on the first FPC board 271 and the second FPC board 272, and the computer controls the adjusting mechanism 2B to drive the lower clip 4L and the upper clip 4K to move and rotate according to the picture taking information, so that the solder joint positions on the first FPC board 271 and the second FPC board 272 are aligned;

then, the computer controls the first pressing mechanism 28 and/or the second pressing mechanism 29 to move according to the received model information so as to press the first FPC board 271 and the second FPC board 272 which are laminated and aligned;

after the pressing, the CCD camera 134 takes a picture again, and the computer controls the tin coating module 13 to move and operate to perform tin coating operation on the display module 27 according to the picture taking information after the FPC board is pressed;

after the tin coating is finished, the computer controls the sliding module 141 to drive the workbench to move to the set position according to the position of the tin coating point of the tin coating operation, and meanwhile, the laser welding module 12 moves to the set position along the cross beam 111 to control the laser welding module 12 to perform welding operation on the display module 27;

after the welding is finished, the workbench moves to return to the initial position, and the welded display module is grabbed by the discharging manipulator 18 to the discharging platform 17 to be output.

This completes the welding process of the laser welder to the display module of the preferred embodiment.

The laser welding machine of the preferred embodiment electrically welds the first FPC board and the second FPC board at one end of the display module by arranging the laser welding module and the tinning module on the beam in a sliding manner, so that the welding mode has high welding precision and high efficiency;

the workbench comprises a fixed platform board for supporting the first FPC board and the second FPC board and a turnover platform board for supporting the display module, wherein the turnover platform board can be kept at a first turnover position if the display module can not interfere with the lifting operation of the upper clamping piece, and can be turned to a second turnover position to avoid interference if the display module can interfere with the lifting operation of the upper clamping piece, so that the laser welding machine can process products of various models, and the processing range of the laser welding machine is enlarged;

in addition, the workbench of the laser welding machine is compact in structure and small in size, so that the whole size is small, the installation is convenient, the space and the cost are saved, and meanwhile, the transportation stroke can be shortened, so that the processing efficiency is improved.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims (1)

1. The utility model provides a laser welding machine for carry out electric property welding to the first FPC board and the second FPC board of display module one end, first FPC board with the welded area of second FPC board stacks up the setting, its characterized in that includes:

the device comprises a rack, wherein a cross beam is arranged at the top of the rack;

the laser welding module is arranged on the cross beam in a sliding mode;

the tinning module is arranged on the cross beam in a sliding manner;

the workbench is arranged in the rack and is positioned below the cross beam;

the feeding platform is arranged at one end of the rack and used for inputting a product to be processed;

the feeding mechanical arm is used for grabbing and conveying the product to be processed to the workbench from the feeding platform;

the discharging platform is arranged at the other end of the rack and used for outputting the processed products; and

the discharging manipulator is used for grabbing and transporting the processed product from the workbench to the discharging platform;

the workbench comprises a fixed seat, a fixed platform plate and a turnover platform plate;

the fixing seat comprises a bottom plate, a first substrate and a second substrate, wherein two ends of the first substrate are fixedly arranged on the bottom plate through supporting columns, two ends of the second substrate are fixedly arranged on the bottom plate through supporting plates, and the first substrate and the second substrate are used for dividing an arrangement space;

the fixed platform board is detachably connected to the first substrate and used for supporting the first FPC board and the second FPC board, and the turnover platform board is rotatably connected to the fixed seat and located at one end of the fixed platform board and used for supporting the display module;

extension blocks are arranged at two ends of the top of the first substrate, the extension blocks extend out of the first substrate, and two ends of the turnover platform plate are rotatably connected with the extension blocks through extension rods;

an extension plate is fixedly connected to the inner side of one support plate, one end of an air cylinder telescopic rod is rotatably connected with the extension plate, the other end of the air cylinder telescopic rod is rotatably connected with one extension rod so as to drive the turnover platform plate to rotate through the extension and retraction of the air cylinder telescopic rod, a limiting block is fixedly arranged on the extension block at one end of the air cylinder telescopic rod and used for limiting the turnover platform plate to rotate to a first turnover position;

taking the extending direction of the feeding platform as an X direction, taking the direction vertical to the plate surface of the fixed platform plate as a Z direction, and taking one direction vertical to the X direction and the Z direction as a Y direction;

the workbench further comprises an adjusting mechanism used for adjusting the second FPC board, the adjusting mechanism comprises a driving module, an upper clamping piece and a lower clamping piece, the driving module is used for driving the upper clamping piece and the lower clamping piece to move and rotate, the upper clamping piece is located below the fixed platform board and used for cutting in from a gap area of the fixed platform board and the turnover platform board to lift the second FPC board to the top surface of the first FPC board, the lower clamping piece is located below the fixed platform board and used for clamping the second FPC board together with the upper clamping piece, and then the position of the second FPC board is adjusted to be aligned with the first FPC board;

a first suction hole for tightly sucking the first FPC board is formed in the fixed platform board, and a second suction hole for tightly sucking the display module is formed in the turnover platform board;

the fixed platform board comprises a first supporting surface for supporting the first FPC board and the second FPC board, the turnover platform board comprises a second supporting surface for supporting the display module, and the turnover platform board comprises a first turnover position and a second turnover position on a turnover track;

when the turnover platform plate is positioned at the first turnover position, the first supporting surface is parallel to the second supporting surface;

when the turnover platform plate is positioned at the second turnover position, an included angle of 255-265 degrees is formed between the first supporting surface and the second supporting surface, so that the interference of a display module on the lifting operation of the upper clamping piece is avoided;

the workbench further comprises a first pressing mechanism and a second pressing mechanism which are used for pressing the second FPC board;

the first pressing mechanism comprises a first belt driving component, a first lifting part, a first extension arm and a pressing block, the first lifting part is connected with a first driving belt of the first belt driving component to obtain movement along the X direction, one end of the first extension arm is connected with the first lifting part to obtain lifting movement along the Z direction, and the other end of the first extension arm is detachably connected with the pressing block;

the second pressing mechanism comprises a first lead screw nut assembly, a second lifting part, a second extension arm and a pressing sheet, the second lifting part is connected with the first lead screw nut assembly to obtain movement along the X direction, one end of the second extension arm is connected with the second lifting part to obtain lifting movement along the Z direction, and the other end of the second extension arm is detachably connected with the pressing sheet;

a guide rail and a guide groove are arranged on the second substrate in parallel, the first belt driving assembly is arranged on the second substrate, the first lifting part is connected to the guide rail in a sliding manner through a sliding block, the first lead screw nut assembly comprises a first motor, a first transmission belt, a first lead screw and a first nut member in transmission connection with the first lead screw, the first lead screw is rotatably arranged at the top of the second substrate, the first motor is arranged at the bottom of the second substrate, two ends of the first transmission belt are respectively in transmission connection with an output shaft of the first motor and the first lead screw, and the first nut member is connected in the guide groove in a sliding manner;

the first extension arm comprises a first segmentation part and a second segmentation part detachably connected to the first segmentation part, the first segmentation part or/and the second segmentation part is/are provided with a strip-shaped connecting hole for fixed connection, and the extension direction of the strip-shaped connecting hole is consistent with the Y direction and further used for adjusting the pressing position of the pressing block on the second FPC board;

the driving module comprises a first sliding part, a second sliding part, a rotating part, a third lifting part and a fourth lifting part, the second sliding part is arranged on the first sliding part, the rotating part is arranged on the second sliding part, the third lifting part is arranged on the rotating part, the fourth lifting part is arranged on the third lifting part, the upper clamping piece is connected with the third lifting part, and the lower clamping piece is connected with the fourth lifting part;

the first sliding part slides along the X direction, the second sliding part slides along the Y direction, the third lifting part lifts along the Z direction, the fourth lifting part lifts along the Z direction, and the rotation axis of the rotating part is consistent with the Z direction;

the first sliding part is driven by a second lead screw nut component arranged on a bottom plate of the fixed seat, the second lead screw nut component comprises a second motor, a second transmission belt, a second lead screw and a second nut piece in transmission connection with the second lead screw, the second lead screw is rotatably arranged on the bottom plate, the second motor is arranged on the bottom plate, two ends of the second transmission belt are respectively in transmission connection with an output shaft of the second motor and the second lead screw, and the second motor and the second lead screw are positioned on the same side of the second transmission belt;

the second sliding part is driven by a third lead screw nut component arranged on the first sliding part, the third lead screw nut component comprises a third motor, a third transmission belt, a third lead screw and a third nut member in transmission connection with the third lead screw, the third lead screw is rotatably arranged on the first sliding part, the third motor is arranged on the first sliding part, two ends of the third transmission belt are respectively in transmission connection with an output shaft of the third motor and the third lead screw, and the third motor and the third lead screw are positioned on the same side of the third transmission belt;

the rotating part is driven by a second belt driving assembly arranged on the second sliding part, the second belt driving assembly comprises a fourth motor, a rotating wheel, a rotating seat and a fourth transmission belt, the fourth motor and the rotating seat are fixedly arranged on the second sliding part, the rotating wheel is in transmission connection with the rotating part, the rotating part is connected with the rotating seat to obtain support, two ends of the fourth transmission belt are in transmission connection with an output shaft of the fourth motor and the rotating wheel respectively, and the diameter of the rotating wheel is larger than that of the output shaft of the fourth motor;

one end of the first sliding part is connected with the second lead screw nut component, the second motor is positioned below one end, far away from the second lead screw nut component, of the first sliding part, and the third motor is positioned below the second sliding part;

the rotating part comprises a transverse plate and a vertical plate connected to one end of the top surface of the transverse plate, the rotating seat is connected below the transverse plate, and the rotating wheel is connected above the transverse plate;

the third lifting part comprises a fifth motor, a fifth transmission belt, a third extension arm, a fourth lead screw and a fifth nut member in transmission connection with the fourth lead screw, the fourth lead screw is connected to the transverse plate in a penetrating and rotating mode, one side of the fifth nut member is connected with the vertical plate in a sliding mode, the fifth motor is located on the top surface of the transverse plate, two ends of the fifth transmission belt are respectively in transmission connection with an output shaft of the fifth motor and the fourth lead screw, one end of the third extension arm is connected to the top of the fifth nut member, and the other end of the third extension arm is detachably connected with the upper clamping piece;

an output shaft of the fifth motor penetrates and extends below the transverse plate, the fifth transmission belt is located below the transverse plate, the fifth motor, the fourth lead screw and the rotating wheel are distributed on the transverse plate in a triangular shape, the fifth motor is located on one side of the fourth motor, and the fourth lead screw is located on one side of the rotating wheel;

the lower clamping piece comprises a U-shaped first main body part and first end parts connected to two ends of the first main body part, the two first end parts extend reversely, the first end part at the left end is used for clamping the second FPC board at the right side, and the first end part at the right end is used for clamping the second FPC board at the left side;

the upper clamping piece comprises a second main body part and second end parts connected to two ends of the second main body part, the two second end parts extend reversely, the second end part on the same side is opposite to the first end part, the second main body part is opposite to the U-shaped groove in the middle of the first main body part, the second end part on the left end is used for carrying out lifting and clamping operation on the second FPC board on the right side, and the second end part on the right end is used for carrying out lifting and clamping operation on the second FPC board on the left side;

a correcting assembly is arranged on the feeding platform and comprises a supporting beam, a third belt driving assembly, a first positioning block, a cylinder assembly and a second positioning block;

the supporting beam is positioned above the feeding platform, the third belt driving assembly is arranged on the supporting beam, the first positioning block is arranged on the supporting beam in a sliding mode, the first positioning block is connected with a third driving belt of the third belt driving assembly to obtain sliding driving force, the air cylinder assembly is fixedly arranged on the rack, one end of the second positioning block is arranged on the rack in a sliding mode, and the second positioning block is connected with the air cylinder assembly to obtain sliding driving force;

the first positioning block and the second positioning block slide in parallel to the table top of the feeding platform, and the sliding directions of the first positioning block and the second positioning block are perpendicular to each other.

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