Background technology
Ultrasonic wire bonding is the key link of LED packaging technology, its objective is external electrode is guided on the led chip, accomplishes the connection work of the interior outer lead of product.
The flow process of LED bonding wire is: material loading-welding-rewinding; Traditional LED bonding equipment material loading mainly is to drive the slide block action through the motor-driven ball screw, forces charging device generation elastic deformation, inserts the cylinder action of device board simultaneously and isolates device; Thereby device falls under gravity into deflector chute and realizes charging; This feed system mainly relies on the device elastic deformation to realize blanking, is prone to the generating device excessive deformation and can't elastic return, produces plastic deformation; Cause unstable product quality, fraction defective is high.
(patent No. ZL 200920129409.8 for China's utility model patent; November 18 2009 Granted publication day; Granted publication CN 201349025Y) in its summary, is described to; A kind of feed system that is used for solid brilliant machine of LED or bonding equipment comprises board, is installed in magazine, motor, transmission mechanism, deflector chute and electromagnetic assembly that the device that supplies to treat charging on the board is placed.Board is provided with guide rail and is located at the slide block on the guide rail slidably; Described electromagnetic assembly is located on the guide rail by means of slide block slidably; And electromagnetic assembly or slide block link to each other with the transmission mechanism output; Slidably reciprocate between magazine and deflector chute along guide rail by means of slide block at electromagnetic assembly under the transmission mechanism gearing; The present invention realizes the separation of device and holds device by electromagnetic assembly moving through utilizing electromagnetic assembly to produce suction, and device self can not produce distortion basically, thereby helps ensureing the quality of product.The present invention is to provide the material collecting device in the bonding equipment, it has only a rewinding magazine, and each the receipts after the full material needs to change magazine, loses time, and influences production efficiency.
Chinese invention patent (application number 200910161340.1, open day on March 17th, 2010, publication number CN 101673795A) is described in its summary; A kind of double-row track feed system that supplies bonding equipment to use comprises underframe, and said underframe upside is provided with slide block device; Be provided with the support pawl in slide block device, the support pawl can slide on slide block device, and support pawl upside is provided with two and raftings and send track; Transporting track is used for the led support product is transported to outgoing position from input position; The support pawl is used to transmit the led support product from inputing to outgoing position, on underframe, also is provided with motor apparatus, is provided with ball screw on the motor output shaft; Ball screw is used for traversing carriage pawl position, and motor is used to provide the rotational power of ball screw.Utilize the double-row track feeding that product charging and discharging are carried out respectively, double-row track can come and go feeding, is used for the parallel feed of workbench, can eliminate the feeding time, keeps producing normal operation, enhances productivity.Feed system provided by the invention is only limited to vertical LED lead frame.
Summary of the invention
The object of the invention will overcome above-mentioned prior art LED bonding equipment thin material box material loading and rewinding exactly, and the material loading magazine is got to be needed to change magazine after fill with the rewinding magazine empty back, loses time reduction production efficiency.
Technical scheme of the present invention is: the handling equipment that a kind of LED bonding equipment is provided; Described handling equipment comprises material loading magazine, suction device, the groove that connects material, crosses sheet device, material collecting device and rewinding magazine, and the described sheet device of crossing comprises a device, welding position and push jack device, and described suction device is got material from the material loading magazine; Material is put into the groove that connects material; Described last slice device will expect that transferring to the welding position from the groove that connects material accomplishes bonding wire, and the material that the push jack device will weld is again seen off, and the material that described material collecting device will weld is delivered to the rewinding box; Described material loading magazine or rewinding magazine have one or more, and vertical distribution.
Described material loading magazine and rewinding magazine have one with a plurality of, and vertical distribution, and cylinder driver is equipped with in the below of described material loading magazine and described rewinding magazine, and described material loading magazine and described rewinding magazine are through the cylinder driver vertical lift.
Described suction device front end is equipped with suction head, and described suction device promotes suction head and gets material from said material loading magazine, is back to the said groove position that connects material, and material is put into the said groove that connects material.
The described groove that connects material has two; It is first groove and second groove that connects material that connects material; Described first groove and described second groove that connects material that connects material laterally arranges; The lower end of the said groove that connects material is provided with the groove lowering or hoisting gear that connects material, and the described groove lowering or hoisting gear that connects material drives the groove that connects material and moves up and down between position and the feeding position connecting material.
The described groove that connects material has a plurality of, and each connects material and laterally arranges between the groove.
The described groove lowering or hoisting gear that connects material comprises stepping motor and screw mandrel, and described stepping motor drives screw mandrel and drives.
All to be the rotation that relies on rubber tire serve welding and the material that will weld is seen off with material to described last slice device and the push jack device of crossing in the sheet device.
The push jack cylinder is equipped with in described push jack device upper end, and the intact material of weldering that described push jack cylinder is seen said push jack device off is pushed into the rewinding position.
Described welding position has two; Be the first welding position and the second welding position; Width and described first between the described first welding position and the described second welding bit parallel setting, the first described welding position and second welding the width that groove and second connects material between the groove that connects material is identical.
Described welding position has a plurality of, and is identical with the quantity of the groove that connects material.
Beneficial effect of the present invention is: the first, the material loading magazine and the rewinding magazine of handling equipment provided by the invention have a plurality of; And vertical distribution; Below magazine bottom, move up and down through air cylinder driven; Can after magazine is got sky or filled, directly will there be material magazine and empty magazine to deliver to and get material level and rewinding position, need not waste the stand-by period of changing magazine, enhance productivity through air cylinder driven.
The second, handling equipment provided by the invention has two connect material groove and two welding positions, can continuous welding, improved the utilance of machine, and also improved production efficiency.
Three, handling equipment provided by the invention is to rotate through rubber tire from the transmission of the groove material to the welding position that connects material, and need not touch material, can not influence the quality of material.
Embodiment
Below in conjunction with accompanying drawing, the present invention is explained further details;
Embodiment one:
It is that example describes that present embodiment all is two with material loading magazine and rewinding magazine;
As shown in Figure 1, be the handling equipment stereogram, in conjunction with Fig. 2, Fig. 3, Fig. 4; Be respectively front view, left view and the vertical view of handling equipment; Described handling equipment comprises material loading magazine, suction device, the groove that connects material, crosses sheet device, material collecting device 6 and rewinding magazine, and the described sheet device of crossing comprises a device 51, welding position and push jack device 52, and described suction device 3 is got material from the material loading magazine; Material is put into the groove that connects material; Described last slice device 51 will expect that transferring to the welding position from the groove that connects material accomplishes bonding wire, and the material that push jack device 52 will weld is again seen off, and the material that described material collecting device 6 will weld is delivered to the rewinding box; Described material loading magazine and rewinding magazine have two, and vertical distribution.
Cylinder driver is equipped with in the below of described material loading magazine and described rewinding magazine, and described material loading magazine and described rewinding magazine are through the cylinder driver vertical lift.
Described suction device 3 front ends are equipped with suction head 31, and described suction device 3 promotes suction head 31 and gets material from said material loading magazine, is back to the said groove position that connects material, and material is put into the said groove that connects material.
The described groove that connects material has two; It is first groove 41 and second groove 42 that connects material that connects material; Described first groove 41 and described second groove 42 that connects material that connects material laterally arranges; The lower end of the said groove that connects material is provided with the groove lowering or hoisting gear 8 that connects material, and the described groove lowering or hoisting gear 8 of connecting material drives the groove that connects material and moves up and down between position and the feeding position connecting material.
The described groove lowering or hoisting gear 8 that connects material comprises stepping motor and screw mandrel, and described stepping motor drives screw mandrel and drives.
Described last slice device 51 and the push jack device of crossing in the sheet device 52 all is to rely on the rotation of rubber tire 53 that material is served the welding position and the material that will weld is seen off.
Push jack cylinder 56 is equipped with in described push jack device 52 upper ends, and the intact material of weldering that described push jack cylinder 56 is seen said push jack device 52 off is pushed into the rewinding position.
Described welding position has two; It is the 54 and second welding position 55, the first welding position; The described first welding position 54 laterally arranges with the described second welding position 55, and the width that groove 41 and second connects material between the groove 42 that connects material of the width and described first between the described 54 and second welding position 55, the first welding position is identical.
Action step during handling equipment work:
1, with two fully charged material loading magazines handling equipment of packing into; The first material loading magazine 11 is put into the upper end and is gone up material level, and the second material loading magazine 12 vertically places the lower end of the first material loading magazine 11, and first cylinder 71 is equipped with in the lower end of the second material loading magazine 12; With two empty rewinding magazines rewinding end of packing into; The first rewinding magazine 21 places the rewinding position, and the second rewinding magazine 22 places the lower end of the first rewinding magazine 21, and the second rewinding magazine is equipped with second cylinder 72 for 22 times;
2, groove lowering or hoisting gear 8 groove that will connect material that connects material drops to the position that connects material, and the groove lowering or hoisting gear 8 that connects material drives screw mandrel by stepping motor and drives;
3, promote suction heads 31 to first material loading magazines 11 by suction device 3 and get material, be back to first groove 41 positions that connect material, material is put into first groove 41 that connects material;
4, the groove that connects material rises to the feeding position, starts last slice device 51, and last slice device 51 rotates through rubber tire 53, and material is delivered to the first welding position 54, welds;
5, groove lowering or hoisting gear 8 groove that will connect material that connects material drops to the position that connects material;
6, suction device 3 promotes suction heads 31 and proceeds to the first material loading magazine 11 and get material, be back to second connect material groove 42 the position, material is put into second groove 42 that connects material;
7, the groove that connects material rises to the feeding position, starts last slice device 51, and last slice device 51 rotates through rubber tire 53, and material is delivered to the second welding position, welds;
8, repeat 2,3 actions;
9, repeat 4 actions, start push jack device 52 simultaneously, push jack device 52 rotates the material that will weld through rubber tire 53 and sees off, by push jack cylinder 56 material is pushed into the rewinding position again;
10, start material collecting device 6, material is delivered to the first rewinding magazine 21; Accomplish loading and unloading action;
11, repeat above work, after the first material loading magazine 11 was got sky, 71 work of first cylinder were shifted the second material loading magazine 12 onto material level, work on, and can the first material loading magazine 11 be taken off simultaneously, refill the material loading magazine of other one full material;
12, adopt the way of step 11 to change the rewinding magazine.
Embodiment two:
Embodiment one describes the course of work of two material loading magazines and two rewinding magazines in detail, and in fact, material loading magazine or rewinding magazine also can be one or more, as long as position and space are suitable for installing, can realize.Certainly, also can have one by the material loading magazine, the rewinding magazine has a plurality of, and perhaps the material loading magazine has a plurality ofly, and the rewinding magazine has one, and being not limited to material loading magazine and rewinding magazine quantity must symmetry, is provided with as long as be suitable for the space, just can be used as embodiments of the invention.Certainly the groove that connects material of the present invention, welding position also can be not limited to two for a plurality of.
Though preferred embodiment of the present invention is disclosed with the purpose as illustration, it will be appreciated by those skilled in the art that various modifications, interpolation and replacement are possible, as long as it does not break away from the spirit and scope of the present invention that detail in the accompanying claims.