CN114589252A - Shearing mechanism is used in lead frame production - Google Patents
Shearing mechanism is used in lead frame production Download PDFInfo
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- CN114589252A CN114589252A CN202210249893.8A CN202210249893A CN114589252A CN 114589252 A CN114589252 A CN 114589252A CN 202210249893 A CN202210249893 A CN 202210249893A CN 114589252 A CN114589252 A CN 114589252A
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- lead frame
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- 238000010008 shearing Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 title claims description 3
- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000011084 recovery Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000032258 transport Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/18—Advancing work in relation to the stroke of the die or tool by means in pneumatic or magnetic engagement with the work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to the technical field of semiconductor lead frame processing, in particular to a shearing device for lead frame production; the automatic cutting device comprises a feeding assembly, a shearing assembly and a transferring assembly which are sequentially arranged, wherein the shearing assembly is also provided with a positioning assembly for acquiring the space position of a lead frame and a limiting assembly for fixing the space position of the lead frame thereon, the feeding assembly, the shearing assembly, the transferring assembly, the positioning assembly and the limiting assembly are all controlled by a control cabinet, the feeding assembly comprises a feeding machine, a paper collecting roller and a discharging roller, the shearing assembly comprises a workbench, a base, a sheet feeder, a leveler, a transverse stroke unit, a longitudinal stroke unit, a supporting arm, a first electromagnetic rotating seat, a stamping device and a cutting knife, and the transferring assembly comprises a longitudinal truss, a longitudinal electric push rod, a transverse plate, an electric drive sliding block, a lifting electric push rod, a second electromagnetic rotating seat, a horizontal plate, a vacuum sucker and a conveyer; the utility model can effectively solve the problems of unstable quality, low efficiency and the like in the prior art.
Description
Technical Field
The utility model relates to the technical field of semiconductor lead frame processing, in particular to a shearing device for lead frame production.
Background
With the rapid development of electronic technology, the product has a fast updating speed, and in the diversified semiconductor industry, the slicing method of the traditional slicer comprises the steps of firstly discharging, leveling, pneumatically clamping by a finger, feeding by a rodless cylinder, pneumatically clamping by the finger and cutting by a die. The production process finds that the product quality is unstable, the slicing is single, the operation is complex and the production efficiency is low.
In the application No.: CN201020659162.3 patent document discloses an automatic slicer for lead frame, which is characterized in that it comprises a frame, a feeder, a paper collector, a controller, a pressure cylinder, a slicing die, a sheet feeder, a leveler, and a photoelectric sensor; the controller is arranged above the rack, the pressure cylinder, the sheet feeder and the leveler are respectively controlled by the controller, the leveler, the sheet feeder and the slicing die are sequentially arranged on the same horizontal plane in the middle of the rack, and the pressure cylinder is fixedly connected with the upper die of the slicing die; the feeding machine is driven by a motor, a paper delivery device is arranged at the upper front part of the feeding direction of the feeding machine, a photoelectric sensor is arranged at a position between the feeding machine and the leveler, which is to be cut, and a sensing signal of the photoelectric sensor is output to the controller; the frame and the feeder are arranged on the same platform frame. The utility model has the advantages of accurate size of cut products, quick product replacement and simplified slicing process. The problem of the product position size is unstable at the section in-process of product is solved, product quality has been improved, has reduced because of the waste of the multiple operation caused manpower, material resources, has improved production efficiency.
However, the following disadvantages still exist in the practical application process:
firstly, the quality is unstable, because the device in the above-mentioned comparison file can only determine whether the slicer moves through the blowing length of photoelectric sensor detection baseband, but the inaccurate problem of measured data appears easily in this kind of mode to lead to the fact the lead frame length after the cutting different, the baseband is not straight completely in slicing die department simultaneously, but has certain slope in the horizontal direction relative to the slicing die, and this will make the lead frame of cutting appear the defect of different length again.
Secondly, the efficiency is low because the device in the above-mentioned comparison document needs manual work to take off the lead frame from the dicing die after cutting off the lead frame.
Disclosure of Invention
The present invention is directed to solving the problems of the prior art, and the problems set forth in the background above.
In order to achieve the purpose, the utility model adopts the following technical scheme: a shearing device for lead frame production comprises a feeding assembly, a shearing assembly and a transferring assembly which are sequentially arranged;
the shearing assembly is also provided with a positioning assembly for collecting the space position of the lead frame and a limiting assembly for fixing the space position of the lead frame;
the feeding assembly, the shearing assembly, the transferring assembly, the positioning assembly and the limiting assembly are controlled by a control cabinet.
Furthermore, the feeding assembly comprises a feeding machine, a paper collecting roller and a discharging roller, the feeding machine is arranged on the ground, the paper collecting roller and the feeding roller are both arranged at the front end of the feeding machine, a base band etched with a lead frame is wound on the discharging roller, and protective paper attached to the base band wound on the discharging roller is torn and then wound on the paper collecting roller;
the shearing assembly comprises a workbench, a base, a sheet feeder, a leveler, a transverse stroke unit, a longitudinal stroke unit, a supporting arm, a first electromagnetic rotary seat, a stamping device and a cutting knife, the workbench is arranged on the bottom surface of the transverse left end of the feeder, the base is fixed on the table surface in the middle of the workbench, the sheet feeders are arranged on the table surfaces at the top of the workbench and at the left and right ends of the base, the leveler is arranged on the top of the side wall at the right end of the workbench, the transverse stroke unit is arranged on the ground at the rear end of the workbench, the longitudinal stroke unit is arranged on the transverse stroke unit and is driven to displace by the transverse stroke unit, the supporting arm is arranged on the longitudinal stroke unit and is driven to displace by the longitudinal stroke unit, the first electromagnetic rotary seat is arranged at the bottom of the supporting arm close to one end of the workbench, the stamping device is arranged at the bottom of the first electromagnetic rotary seat, the cutting knife is arranged at the bottom of the stamping device;
the transfer assembly is including setting up vertical bank, vertical electric putter, diaphragm, electric drive slider, lift electric putter, second electromagnetism roating seat, horizontal plate, vacuum chuck and conveyer, vertical bank is installed subaerial at the workstation rear end, the diaphragm slips on vertical bank and by the vertical electric putter drive displacement of setting on vertical bank, be equipped with horizontal guide rail on the diaphragm, electric drive slider slips on the guide rail on the diaphragm, lift electric putter sets up the bottom at the electric drive slider, second electromagnetism roating seat sets up the bottom at lift electric putter, the horizontal plate sets up the bottom at second electromagnetism roating seat, the face of horizontal plate bottom has the vacuum chuck of gathering, the conveyer sets up the rear end of workstation and is in subaerial under vertical bank.
Furthermore, the base band on the discharging roller sequentially passes through the flattener and the two piece feeders and is suspended right above the base.
Furthermore, the flattening device comprises a rotating seat arranged on the workbench and a flattening roller rotationally connected to the rotating seat;
the sheet feeder comprises a driving seat, sheet feeding rollers, gears and a sheet feeding motor, wherein the driving seat is arranged on a workbench, the driving seat is rotatably connected with the two sheet feeding rollers which are in up-down symmetrical relation, the end parts of the sheet feeding rollers extending out of the driving seat are coaxially fixed with the gears, the two gears on the same driving seat are meshed, and any one of the gears is coaxially connected with a motor shaft of the sheet feeding motor;
the transverse stroke unit comprises transverse track plates, transverse sliding blocks, transverse screws and transverse motors, wherein at least two transverse track plates are arranged in parallel, the transverse track plates are connected with the transverse sliding blocks in a sliding mode, and the transverse sliding blocks drive the transverse sliding blocks to move under the matching of the transverse screws and the transverse motors;
the longitudinal stroke unit comprises a longitudinal track plate, a longitudinal sliding block, a longitudinal screw and a longitudinal motor, the top ends of the transverse sliding blocks are fixed at the bottom of the longitudinal track plate, the longitudinal sliding block is connected to the longitudinal track plate in a sliding mode, the longitudinal sliding block drives the longitudinal sliding block to move under the matching of the longitudinal screw and the longitudinal motor, and the supporting arm is fixed on the longitudinal sliding block.
Further, the size of the base is larger than that of the lead frame on the base tape.
Furthermore, the first electromagnetic rotating seat and the second electromagnetic rotating shaft are both vertical to the ground, the stamping device adopts any one of a pneumatic driving mode or a hydraulic driving mode, and a pressure balance hole is further formed in the area, surrounded by the cutting knife, of the stamping device.
Furthermore, the vacuum chucks are powered by an external air pump.
Furthermore, the positioning assembly comprises a first track plate, a first sliding block, a first screw rod, a first motor, a suspension arm, a detection plate, a positioning sensor, a camera module, a photoelectric sensor and a pressure sensor, the first track plate is longitudinally arranged on the ground at the front end of the workbench along the installation stroke direction, the first sliding block is connected to the first track plate in a sliding manner, the first sliding block drives the first sliding block to move under the matching of the first screw rod and the first motor, the suspension arm is arranged on the first sliding block, the detection plate is horizontally arranged at the lower end of one end, close to the workbench, of the suspension arm, the positioning sensor and the camera module are both arranged on the plate surface at the lower end of the detection plate, the photoelectric sensor is arranged on the bottom surface between the discharging roller and the leveling roller, and the pressure sensor is arranged in the middle of the upper end surface of the base;
the limiting assembly comprises two longitudinal limiting seats, two limiting electric rods, two longitudinal pressing plates and two transverse stretching units, wherein each longitudinal limiting seat is arranged between the base and the corresponding sheet feeder, the two ends of each longitudinal limiting seat are respectively provided with a limiting electric push rod in the vertical direction, the top ends of the two limiting electric push rods on the same longitudinal limiting seat are respectively fixed at the two ends of the same longitudinal pressing plate, each transverse stretching unit comprises a corner platform, a corner block, a guide rod, a second screw rod and a stretching motor, the two ends of each longitudinal limiting block are respectively provided with a corner block, the two corner blocks at the rear end of the workbench are connected on the same guide rod in a sliding manner, the two corner blocks at the front end of the workbench are connected on the same second screw rod in a threaded manner, the end parts of the guide rod and the second screw rod are respectively connected on the corresponding corner platforms on the workbench in a rotating manner, and the second screw rods are driven to rotate by the stretching motors, the central axes of the guide rod and the second screw rod are transverse, and the stretching motor and the second screw rod are matched to drive the two longitudinal limiting seats to perform synchronous reverse motion which is symmetrical relative to the base.
Furthermore, the plane of the upper end of the longitudinal limiting seat is not higher than the plane of the upper end of the base, and a base band between the two film feeders also penetrates through a space between the longitudinal limiting seat and the longitudinal lower pressing plate;
the workstation left end still is equipped with the recovery subassembly that receives the control of switch board, retrieve the subassembly including setting up at subaerial recovery machine and setting up the recovery roller at recovery machine front end, the piece ware output baseband winding that send of workstation left end is on retrieving the roller.
Furthermore, a touch display screen, an interface area and a key area are arranged at the front end of the control cabinet. .
Compared with the prior art, the utility model has the advantages and positive effects that:
1. the utility model adopts the design that the positioning assembly for collecting the space position of the lead frame and the limiting assembly for fixing the space position of the lead frame are arranged at the shearing assembly. The switch board just can be through the baseband of spacing subassembly with base department completely and attached at the up end of base steadily like this, then detect the relative base of lead frame that the base is in through the detecting element and go up the position relation data of terminal surface, then the switch board adjusts the projection of cutting edge on the base of cutting knife and the projection of lead frame edge on the base completely to coincide according to the data that the detecting element gathered to make stamping device drive cutting knife follow the lead frame that the baseband was cut off and accord with preset shape completely. The effect of effectively improving the quality stability of the product cutting lead frame is achieved.
2. The utility model arranges the transfer component at the cutting component, the transfer component comprises a longitudinal walking frame, a longitudinal electric push rod, a transverse plate and an electric drive slide block, the lifting electric push rod, the second electromagnetic rotating seat, the horizontal plate, vacuum chuck and conveyer, vertical row frame is installed on the subaerial of workstation rear end, the diaphragm cup joints on vertical row frame and by the vertical electric push rod drive displacement of setting on vertical row frame, be equipped with horizontal guide rail on the diaphragm, electric drive slider cup joints on the guide rail on the diaphragm, lifting electric push rod sets up the bottom at electric drive slider, the second electromagnetic rotating seat sets up the bottom at lifting electric push rod, the horizontal plate sets up the bottom at the second electromagnetic rotating seat, the face of horizontal plate bottom has densely covered vacuum chuck, the conveyer sets up the rear end of workstation and is in subaerial under vertical row frame, vacuum chuck provides the design of power by external air pump. Like this when the cutting subassembly accomplish the cutting back, the switch board alright with the projection that drives the horizontal plate on the base through last detection subassembly covers the projection of lead frame on the base completely to the lead frame that cuts off on with the base through the cooperation of lifting telescopic pole and vacuum chuck takes out, and transports to the conveyer, then the conveyer transports lead frame to appointed collection point. The effect of effectively improving the production efficiency of the product when the lead frame is cut is achieved.
Drawings
FIG. 1 is a pictorial view of the present invention from a first perspective;
FIG. 2 is an exploded view of the present invention from a second perspective;
FIG. 3 is a pictorial view of the transfer assembly of the present invention at a third viewing angle;
FIG. 4 is a pictorial view of a cutting assembly of the present invention from a fourth perspective;
FIG. 5 is a pictorial representation of the present invention at a fifth viewing angle;
FIG. 6 is a schematic view of a part positioning assembly at a sixth viewing angle in accordance with the present invention;
FIG. 7 is a schematic view of a part positioning assembly at a seventh viewing angle of the present invention;
the reference numerals in the drawings represent:
100-a control cabinet; 101-touch display screen; 102-an interface region; 103-key area;
200-a feed assembly; 201-a feeder; 202-a paper collecting roller; 203-a discharge roller;
300-a shear assembly; 301-a workbench; 302-a base; 303-a sheet feeder; 304-a flattener; 305-a lateral stroke unit; 306-longitudinal stroke unit; 307-a support arm; 308-a first electromagnetic rotating base; 309-a stamping device; 310-a cutting knife;
3031-a drive seat; 3032-a sheet feed roller; 3033-gear; 3034-a sheet feeding motor;
3041-a rotating base; 3042-leveling rolls;
3051-a transverse track slab; 3052-a lateral slide; 3053-transverse screw; 3054-a transverse motor;
3061-longitudinal track plate; 3062-longitudinal slide block; 3063-longitudinal screw; 3064-longitudinal electric motor;
3091-pressure balance holes;
400-a transport module; 401-longitudinal row frame; 402-longitudinal electric push rod; 403-a transverse plate; 404-an electrically driven slider; 405-lifting the electric push rod; 406-a second electromagnetic turret; 407-horizontal plate; 408-a vacuum chuck; 409-a conveyor;
500-a spacing assembly; 501-longitudinal limiting seat; 502-limit electric rod; 503-longitudinal pressing plate; 504-transverse stretching unit;
5041-corner table; 5042-corner block; 5043-a guide bar; 5044-a second screw; 5045-a stretching motor;
600-a positioning assembly; 601-a first track plate; 602-a first slider; 603-a first screw; 604-a first motor; 605-a boom; 606-detecting board; 607-positioning sensors; 608-camera module; 609-a photosensor; 610-a pressure sensor;
700-a recovery assembly; 701-a recycling machine; 702-recovery roll.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The shearing device for lead frame production of the embodiment refers to fig. 1 to 7: comprises a feeding component 200, a shearing component 300, a transferring component 400, a positioning component 600, a limiting component 500 and a recovering component 700; and the feeding assembly 200, the shearing assembly 300, the transferring assembly 400, the recovering assembly 700, the positioning assembly 600 and the limiting assembly 500 are all controlled by the control cabinet 100.
(one)
The front end of the control cabinet 100 is provided with the touch display screen 101, the interface area 102 and the key area 103, so that a user can use the control cabinet 100 through the touch display screen 101 and the key area 103 and does not set a designated working mode for the control cabinet 100, and the purpose that the control cabinet 100 automatically controls the feeding assembly 200, the shearing assembly 300, the transferring assembly 400, the positioning assembly 600, the limiting assembly 500 and the recycling assembly 700 to work is achieved; the user can exchange data or write programs into the control cabinet 100 through the interface area 102, so that the working mode of the control cabinet 100 can be customized according to actual needs.
(II)
The feeding assembly 200 comprises a feeding machine 201, a receiving roller 202 and a discharging roller 203, wherein the feeding machine 201 is arranged on the ground, the receiving roller 202 and the feeding roller are both arranged at the front end of the feeding machine 201, a base belt etched with lead frames is wound on the discharging roller 203, and protective paper attached to the base belt wound on the discharging roller 203 is wound on the receiving roller 202 after being torn.
It is worth noting that: the discharge roller 203 and the collection roller 202 are both detachably mounted on the feeder 201 and driven to rotate by the feeder.
(III)
The shearing assembly 300 comprises a workbench 301, a base 302, a sheet feeder 303, a flattener 304, a transverse stroke unit 305, a longitudinal stroke unit 306, a supporting arm 307, a first electromagnetic rotary seat 308, a stamping device 309 and a cutting knife 310, wherein the workbench 301 is arranged on the bottom surface of the left end of the feeder 201 in the transverse direction, the base 302 is fixed on the table surface in the middle of the workbench 301, the sheet feeder 303 is arranged on the table surface at the top of the workbench 301 and positioned at the left end and the right end of the base 302, the flattener 304 is arranged on the top of the side wall at the right end of the workbench 301, the transverse stroke unit 305 is arranged on the ground at the rear end of the workbench 301, the longitudinal stroke unit 306 is arranged on the transverse stroke unit 305 and driven to displace by the transverse stroke unit 305, the supporting arm 307 is arranged on the longitudinal stroke unit 306 and driven to displace by the longitudinal stroke unit 306, the bottom of the top end of the supporting arm 307 close to one end of the workbench 301 is provided with the first electromagnetic rotary seat 308, the punching device 309 is disposed at the bottom of the first electromagnetic rotary base 308, and the cutting knife 310 is disposed at the bottom of the punching device 309.
It is worth noting that: the plane size of the base 302 is larger than that of the lead frame on the base tape, and the size of the cutting edge of the cutting knife 310 is smaller than that of the base 302, so that the table top of the workbench 301 can not be damaged when the cutting knife 310 is used for cutting the lead frame, and the cutting edge of the cutting knife 310 is protected from being damaged.
It is worth noting that: the cutting knife 310 is detachably mounted on the stamping device 309, so that a user can replace the cutting knife 310 with a corresponding model according to lead frames with different models, and the application range of the utility model can be widened.
It is worth noting that: the rotation axis of the first electromagnetic rotary base 308 is vertical to the ground.
It is worth noting that: the stamping device 309 is driven by either air pressure or hydraulic pressure, and in this embodiment, the stamping device 309 is driven by hydraulic power, because the hydraulic pressure has the advantages of large power-to-weight ratio, rapid start and brake, stepless speed regulation, wide speed regulation range, good linear motion stability, easy realization of overload protection, safe operation, stable operation, and the like.
It is worth noting that: still be equipped with pressure balance hole 3091 in the region that is in cutting knife 310 on stamping device 309 and surrounds, reset the in-process after stamping device 309 drive cutting knife 310 lead frame cuts off like this, can not produce the negative pressure in the space that cutting knife 310 and stamping device 309 enclose, and make stamping device 309 suck the lead frame when upwards contracting resets to cause the position of the relative base 302 of lead frame to change, thereby be unfavorable for the work of transporting subassembly 400.
(three-one)
The sheet feeder 303 comprises a driving seat 3031, a sheet feeding roller 3032, a gear 3033 and a sheet feeding motor 3034, wherein the driving seat 3031 is arranged on the workbench 301, the driving seat 3031 is rotatably connected with two sheet feeding rollers 3032 which are in a vertical symmetrical relationship, the end part of the sheet feeding roller 3032 extending out of the driving seat 3031 is coaxially fixed with the gear 3033, the two gears 3033 on the same driving seat 3031 are engaged, and any one gear 3033 is coaxially connected with a motor shaft of the sheet feeding motor 3034.
It is worth noting that: the base tape on the discharging roller 203 sequentially passes through the flattener 304 and the two sheet feeders 303 and is suspended right above the base 302, so that the lower end surface of the base tape and the base 302 are prevented from being rubbed with each other, and the lower end surface of the lead frame is prevented from being damaged due to mechanical abrasion.
(three-two)
The flattener 304 comprises a rotating base 3041 installed on the workbench 301 and a flattening roller 3042 rotatably connected to the rotating base 3041, so that the base tape output by the discharging roller 203 can be flattened by the flattening roller 3042 and is sequentially conveyed to the sheet feeder 303, the base 302 and the sheet feeder 303; the flattener 304 also ensures that the base strip is not damaged by mechanical friction with the edges of the table 301.
(III-III)
The transverse stroke unit 305 comprises transverse track plates 3051, transverse sliders 3061, transverse screws 3053 and transverse motors 3054, the number of the transverse track plates 3051 is two, the transverse tracks 3051 are arranged in parallel, the transverse sliders 3061 are slidably connected to the transverse track plates 3051, and the transverse sliders 3061 drive the transverse tracks 3051 to displace under the cooperation of the transverse screws 3053 and the transverse motors 3054.
(three-four)
The longitudinal stroke unit 306 comprises a longitudinal track plate 3061, a longitudinal slider 3062, a longitudinal screw 3063 and a longitudinal motor 3064, the top ends of the transverse sliders 3061 are fixed at the bottom of the longitudinal track plate 3061, the longitudinal slider 3062 is connected to the longitudinal track plate 3061 in a sliding manner, the longitudinal slider 3062 drives the longitudinal slider 3062 to move under the matching of the longitudinal screw 3063 and the longitudinal motor 3064, and the supporting arm 307 is fixed on the longitudinal slider 3062.
(IV)
The transfer assembly 400 comprises a longitudinal traveling frame 401, a longitudinal electric push rod 402, a transverse plate 403, an electric drive sliding block 404, a lifting electric push rod 405, a second electromagnetic rotary seat 406, a horizontal plate 407, a vacuum chuck 408 and a conveyor 409, the vertical traveling frame 401 is installed on the ground at the rear end of the workbench 301, the transverse plate 403 is slidably connected to the vertical traveling frame 401 and driven to move by a vertical electric push rod 402 arranged on the vertical traveling frame 401, the transverse plate 403 is provided with a transverse guide rail, the electric drive slider 404 is slidably connected to the guide rail on the transverse plate 403, the lifting electric push rod 405 is arranged at the bottom of the electric drive slider 404, the second electromagnetic rotating seat 406 is arranged at the bottom of the lifting electric push rod 405, the horizontal plate 407 is arranged at the bottom of the second electromagnetic rotating seat 406, vacuum suction cups 408 are densely distributed on the plate surface at the bottom of the horizontal plate 407, and the conveyor 409 is arranged at the rear end of the workbench 301 and on the ground right below the vertical traveling frame 401.
It is worth noting that: the vacuum chuck 408 is driven by an external air pump, so that the control cabinet 100 can control the air pump to generate negative pressure with a specified size on the vacuum chuck 408, so as to adsorb the lead frame on the base 302, and simultaneously control the air pump to generate positive pressure with a specified size on the vacuum chuck 408, so as to safely release the lead frame below the horizontal plate 407 to the conveyor 409.
It is worth noting that: the rotation axis of the second electromagnetic rotation is vertical to the ground.
(V)
The positioning assembly 600 comprises a first track plate 601, a first slide block 602, a first screw 603, a first motor 604, a boom 605, a detection plate 606, a positioning sensor 607, a camera module 608, a photoelectric sensor 609 and a pressure sensor 610, wherein the first track plate 601 is longitudinally arranged on the ground at the front end of the workbench 301 along the installation stroke direction, the first slide block 602 is connected on the first track plate 601 in a sliding manner, the first slide block 602 drives the first screw 603 and the first motor 604 to move in a matching manner, the boom 605 is arranged on the first slide block 602, the detection plate 606 is horizontally arranged at the lower end of the boom 605 close to one end of the workbench 301, the positioning sensor 607 and the camera module 608 are both arranged on the plate surface at the lower end of the detection plate 606, the photoelectric sensor 609 is arranged on the bottom surface between the discharging roller 203 and the leveling roller 3042, the pressure sensor 610 is arranged in the middle of the upper end surface of the base 302,
the photoelectric sensor 609 is used for detecting how long the discharge roller 203 releases the base tape, so that the control cabinet 100 can judge how long the base tape at the base 302 moves according to the monitoring data of the photoelectric sensor 609, and determine whether a complete lead frame exists on the base tape above the base 302.
The pressure sensor 610 is used for cooperating with the limiting assembly 500, the control cabinet 100 controls the limiting assembly 500 to press the base band at the base 302 on the upper end surface of the base 302 in a flat and horizontal manner, and once the pressure sensor 610 detects a signal and the signal reaches a specified value, the control cabinet 100 can determine that the base band is pressed on the upper end surface of the base 302 in a flat and horizontal manner.
The positioning sensor 607 is used for detecting the position of the lead frame on the base 302, then the control cabinet 100 photographs the state of the lead frame on the base 302 through the camera module 608, and then the control cabinet 100 calculates the deflection amplitude of the lead frame on the horizontal plane relative to the base 302 according to the built-in machine vision program, and determines the specific position of the lead frame on the upper end surface of the base 302.
(VI)
The limiting assembly 500 comprises two longitudinal limiting seats 501, two limiting electric rods 502, two longitudinal lower pressing plates 503 and two transverse stretching units 504, wherein each longitudinal limiting seat 501 is arranged between the base 302 and the corresponding sheet feeder 303, two ends of each longitudinal limiting seat 501 are respectively provided with a vertical limiting electric push rod, the top ends of the two limiting electric push rods on the same longitudinal limiting seat 501 are respectively fixed at two ends of the same longitudinal lower pressing plate 503, each transverse stretching unit 504 comprises a corner block 5041, a corner block 5042, a guide rod 5043, a second screw 5044 and a stretching motor 5045, two ends of each longitudinal limiting block are respectively provided with a corner block 5042, the two corner blocks 5042 at the rear end of the workbench 301 are connected on the same guide rod 5043 in a sliding manner, the two corner blocks 5042 at the front end of the workbench 301 are connected on the same second screw 5044 in a threaded manner, the end parts of the guide rod 5043 and the second screw 5044 are respectively connected on the corresponding corner blocks 5041 on the workbench 301 in a rotating manner, the second screw 5044 is driven by a stretching motor 5045 to rotate, the central axes of the guide rod 5043 and the second screw 5044 are both in the transverse direction, and the stretching motor 5045 and the second screw 5044 are matched with each other to drive the two longitudinal limiting seats 501 to synchronously and reversely move symmetrically relative to the base 302.
It is worth noting that: the plane of the upper end of the longitudinal limiting seat 501 is equal to the plane of the upper end of the base 302, and a base band between the two sheet feeders 303 also passes through a space between the longitudinal limiting seat 501 and the longitudinal lower pressing plate 503.
Therefore, the control cabinet 100 can drive the longitudinal pressing plate 503 to move the base 302 downwards through the limiting electric push rod, so as to be matched with the longitudinal limiting seat 501 to fix the base bands at the left end and the right end, and then instruct the stretching motor 5045 to drive the second screw 5044 to rotate so as to enable the two longitudinal limiting seats 501 to slowly move towards opposite directions, so that the base bands at the position of the base 302 are straightened.
(VII)
The left end of the workbench 301 is further provided with a recovery assembly 700 controlled by the control cabinet 100, the recovery assembly 700 comprises a recovery machine 701 arranged on the ground and a recovery roller 702 arranged at the front end of the recovery machine 701, and the output base band of the sheet feeder 303 at the left end of the workbench 301 is wound on the recovery roller 702.
Therefore, the control cabinet 100 can collect the waste baseband through the recovery assembly 700, thereby being beneficial to saving the cost.
(eight)
The specific working process of the utility model is as follows:
in the first step, the user first pulls the base tape from the discharging roller 203, passes through the leveler 304, the sheet feeder 303, the restricting assembly 500, the base 302, the restricting assembly 500, and the sheet feeder 303 in this order, and finally winds the protective paper on the take-up roller 702 while winding the protective paper on the base tape on the take-up roller 202.
Second, the user sets a designated operating mode for the control cabinet 100
Third, the control cabinet 100 instructs the recovery roller 702, the sheet feeder 303, the discharging roller 203, and the take-up roller 202 to start, thereby moving the base tape.
Fourthly, the control cabinet 100 detects the discharged length of the base band through the photoelectric sensor 609, and once the moving length of the base band reaches a specified value (at the moment, a complete lead frame is just arranged on the base band right above the base 302), the control cabinet 100 immediately instructs the recovery roller 702, the sheet feeder 303, the discharging roller 203 and the paper collecting roller 202 to be closed.
Fifthly, the control cabinet 100 instructs the limit electric push rod to contract, so that the base bands at the two ends of the base 302 are clamped, and then instructs the stretching motor 5045 to start to drive the two limit assemblies 500 to synchronously and reversely move (the two move back to back), so that the base band at the position of the base 302 is stretched to be straight, and at the moment, the upper end surface of the base 302 is completely attached to the base band.
Sixthly, the control cabinet 100 instructs the first motor 604 to start so as to move the detection plate 606 to be right above the base 302, and then the control cabinet 100 calculates the deflection amplitude of the lead frame on the horizontal plane relative to the base 302 through the positioning sensor 607 and the camera module 608, and determines the specific position of the lead frame on the upper end surface of the base 302; the control cabinet 100 then instructs the first motor 604 to be activated to move the detector plate 606 out of the table 301.
Seventhly, the control cabinet 100 instructs the transverse motor 3054, the longitudinal motor 3064 and the first electromagnetic rotary base 308 according to the detection data in the sixth step, so that the projection of the cutting edge of the cutting knife 310 on the base 302 completely coincides with the projection of the edge of the lead frame on the base 302, then the control cabinet 100 instructs the stamping device 309 to drive the cutting knife 310 to move downwards, so that the lead frame is cut off from the base band, and then the control cabinet 100 instructs the transverse motor 3054, the longitudinal motor 3064 and the first electromagnetic rotary base 308 to reset (at this time, the stamping device 309 meets the outer end of the workbench 301).
In an eighth step, the control cabinet 100 instructs the longitudinal electric pushing rod 402, the electric driving block and the second electromagnetic rotary base 406 to start according to the detection data in the sixth step, so that the projection of the horizontal plate 407 on the base 302 completely covers the projection of the lead frame on the base 302, and the lead frame cut from the base 302 is taken out by the cooperation of the lifting telescopic rod and the vacuum chuck 408, and is transported to the conveyor 409, and then the conveyor 409 transports the lead frame to a designated collection point.
Ninth, the control cabinet 100 instructs the first motor 604 to start, so that the two stop assemblies 500 move in opposite directions (i.e., in opposite directions) to release the base tape at the base 302 to a natural slack.
Tenth, the control cabinet 100 instructs the limit electric push rod to extend, so that the base bands at the two ends of the base 302 are completely released.
And a tenth step of repeating the third to tenth steps in sequence.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. The utility model provides a shearing mechanism is used in lead frame production which characterized in that: comprises a feeding component, a shearing component and a transferring component which are arranged in sequence;
the shearing assembly is also provided with a positioning assembly for collecting the space position of the lead frame and a limiting assembly for fixing the space position of the lead frame;
the feeding assembly, the shearing assembly, the transferring assembly, the positioning assembly and the limiting assembly are controlled by a control cabinet.
2. The shearing device for lead frame production according to claim 1, wherein the feeding assembly comprises a feeding machine, a receiving roller and a discharging roller, the feeding machine is arranged on the ground, the receiving roller and the feeding roller are both arranged at the front end of the feeding machine, a base belt etched with lead frames is wound on the discharging roller, and protective paper attached to the base belt wound on the discharging roller is torn and then wound on the receiving roller;
the shearing assembly comprises a workbench, a base, a sheet feeder, a leveler, a transverse stroke unit, a longitudinal stroke unit, a supporting arm, a first electromagnetic rotary seat, a stamping device and a cutting knife, the workbench is arranged on the bottom surface of the transverse left end of the feeder, the base is fixed on the table surface in the middle of the workbench, the sheet feeders are arranged on the table surfaces at the top of the workbench and at the left and right ends of the base, the leveler is arranged on the top of the side wall at the right end of the workbench, the transverse stroke unit is arranged on the ground at the rear end of the workbench, the longitudinal stroke unit is arranged on the transverse stroke unit and is driven to displace by the transverse stroke unit, the supporting arm is arranged on the longitudinal stroke unit and is driven to displace by the longitudinal stroke unit, the first electromagnetic rotary seat is arranged at the bottom of the supporting arm close to one end of the workbench, the stamping device is arranged at the bottom of the first electromagnetic rotary seat, the cutting knife is arranged at the bottom of the stamping device;
the transfer assembly is including setting up vertical bank, vertical electric putter, diaphragm, electric drive slider, lift electric putter, second electromagnetism roating seat, horizontal plate, vacuum chuck and conveyer, vertical bank is installed subaerial at the workstation rear end, the diaphragm slips on vertical bank and by the vertical electric putter drive displacement of setting on vertical bank, be equipped with horizontal guide rail on the diaphragm, electric drive slider slips on the guide rail on the diaphragm, lift electric putter sets up the bottom at the electric drive slider, second electromagnetism roating seat sets up the bottom at lift electric putter, the horizontal plate sets up the bottom at second electromagnetism roating seat, the face of horizontal plate bottom has the vacuum chuck of gathering, the conveyer sets up the rear end of workstation and is in subaerial under vertical bank.
3. The shearing device for lead frame production as recited in claim 2, wherein the base strip on the feeding roller sequentially passes through the flattener and the two sheet feeders and is suspended right above the base.
4. The shearing device for lead frame production as recited in claim 2, wherein said leveler comprises a rotating base installed on the work table and a leveling roller rotatably connected to the rotating base;
the sheet feeder comprises a driving seat, sheet feeding rollers, gears and a sheet feeding motor, wherein the driving seat is arranged on a workbench, the driving seat is rotatably connected with the two sheet feeding rollers which are in up-down symmetrical relation, the end parts of the sheet feeding rollers extending out of the driving seat are coaxially fixed with the gears, the two gears on the same driving seat are meshed, and any one of the gears is coaxially connected with a motor shaft of the sheet feeding motor;
the transverse stroke unit comprises transverse track plates, transverse sliding blocks, transverse screws and transverse motors, wherein at least two transverse track plates are arranged in parallel, the transverse track plates are connected with the transverse sliding blocks in a sliding mode, and the transverse sliding blocks drive the transverse sliding blocks to move under the matching of the transverse screws and the transverse motors;
the longitudinal stroke unit comprises a longitudinal track plate, a longitudinal sliding block, a longitudinal screw and a longitudinal motor, the top ends of the transverse sliding blocks are fixed at the bottom of the longitudinal track plate, the longitudinal sliding block is connected to the longitudinal track plate in a sliding mode, the longitudinal sliding block drives the longitudinal sliding block to move under the matching of the longitudinal screw and the longitudinal motor, and the supporting arm is fixed on the longitudinal sliding block.
5. The shearing device for lead frame production as recited in claim 2, wherein the size of said base is larger than the size of the lead frame on the base tape.
6. The shearing device for lead frame production according to claim 1, wherein the first electromagnetic rotating seat and the second electromagnetic rotating shaft are vertical to the ground, the stamping device adopts any one of a pneumatic driving mode or a hydraulic driving mode, and a pressure balance hole is further formed in the area, surrounded by the cutting knife, of the stamping device.
7. The shearing device for lead frame production as recited in claim 2, wherein each of said vacuum chucks is powered by an external air pump.
8. The shearing device for lead frame production according to claim 1, the positioning component comprises a first track plate, a first slide block, a first screw rod, a first motor, a suspension arm, a detection plate, a positioning sensor, a camera module, a photoelectric sensor and a pressure sensor, the first track plate is longitudinally arranged on the ground at the front end of the workbench along the installation stroke direction, the first sliding block is connected on the first track plate in a sliding way, the first sliding block drives the first sliding block to move under the matching of the first screw rod and the first motor, the suspension arm is arranged on the first slide block, the detection plate is horizontally arranged at the lower end of one end of the suspension arm close to the workbench, the positioning sensor and the camera module are arranged on the plate surface at the lower end of the detection plate, the photoelectric sensor is arranged on the bottom surface between the discharging roller and the leveling roller, and the pressure sensor is arranged in the middle of the upper end surface of the base.
9. The shearing device for lead frame production according to claim 1, wherein the limiting assembly comprises two longitudinal limiting seats, two limiting electric rods, two longitudinal pressing plates and a transverse stretching unit, each longitudinal limiting seat is arranged between the base and the corresponding sheet feeder, two ends of each longitudinal limiting seat are respectively provided with a vertical limiting electric push rod, the top ends of the two limiting electric push rods on the same longitudinal limiting seat are respectively fixed at two ends of the same longitudinal pressing plate, the transverse stretching unit comprises a corner block, a guide rod, a second screw rod and a stretching motor, two ends of each longitudinal limiting block are respectively provided with a corner block, the two corner blocks at the rear end of the worktable are in sliding connection on the same guide rod, the two corner blocks at the front end of the worktable are in threaded connection on the same second screw rod, the guide rod and the end of the second screw rod are both rotatably connected on the corresponding corner blocks on the worktable, the second screw rod is driven to rotate by a stretching motor, the guide rod and the central axis of the second screw rod are transverse, and the stretching motor and the second screw rod are matched to drive the two longitudinal limiting seats to synchronously and reversely move symmetrically relative to the base.
10. The shearing device for lead frame production according to claim 1, wherein a touch display screen, an interface area and a key area are arranged at the front end of the control cabinet;
the plane of the upper end of the longitudinal limiting seat is not higher than the plane of the upper end of the base, and a base band between the two film feeders also penetrates through a space between the longitudinal limiting seat and the longitudinal lower pressing plate;
the workstation left end still is equipped with the recovery subassembly that receives the control of switch board, retrieve the subassembly including setting up at subaerial recovery machine and setting up the recovery roller at recovery machine front end, the piece ware output baseband winding that send of workstation left end is on retrieving the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249893.8A CN114589252A (en) | 2022-03-15 | 2022-03-15 | Shearing mechanism is used in lead frame production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249893.8A CN114589252A (en) | 2022-03-15 | 2022-03-15 | Shearing mechanism is used in lead frame production |
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| Publication Number | Publication Date |
|---|---|
| CN114589252A true CN114589252A (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210249893.8A Pending CN114589252A (en) | 2022-03-15 | 2022-03-15 | Shearing mechanism is used in lead frame production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502277A (en) * | 2022-09-20 | 2022-12-23 | 崇辉半导体(江门)有限公司 | Stamping die for manufacturing semiconductor lead frame |
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| JPH01252432A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Metal Corp | Lead frame conveyer |
| US5272800A (en) * | 1991-07-01 | 1993-12-28 | Olin Corporation | Method and apparatus for forming and positioning a preform on a workpiece |
| US5410804A (en) * | 1991-03-15 | 1995-05-02 | Asm-Fico Tooling B.V. | Method for manufacturing a single product from integrated circuits received on a lead frame |
| CN201900173U (en) * | 2010-12-14 | 2011-07-20 | 中山品高电子材料有限公司 | Automatic slicing machine of lead frame |
| CN103624142A (en) * | 2013-11-17 | 2014-03-12 | 保定金阳光能源装备科技有限公司 | Manufacturing technology and equipment of lead-acid battery continuous curved plate grid |
| JP2022011772A (en) * | 2020-06-30 | 2022-01-17 | 日本電産シンポ株式会社 | Press control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01252432A (en) * | 1988-03-31 | 1989-10-09 | Mitsubishi Metal Corp | Lead frame conveyer |
| US5410804A (en) * | 1991-03-15 | 1995-05-02 | Asm-Fico Tooling B.V. | Method for manufacturing a single product from integrated circuits received on a lead frame |
| US5272800A (en) * | 1991-07-01 | 1993-12-28 | Olin Corporation | Method and apparatus for forming and positioning a preform on a workpiece |
| CN201900173U (en) * | 2010-12-14 | 2011-07-20 | 中山品高电子材料有限公司 | Automatic slicing machine of lead frame |
| CN103624142A (en) * | 2013-11-17 | 2014-03-12 | 保定金阳光能源装备科技有限公司 | Manufacturing technology and equipment of lead-acid battery continuous curved plate grid |
| JP2022011772A (en) * | 2020-06-30 | 2022-01-17 | 日本電産シンポ株式会社 | Press control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502277A (en) * | 2022-09-20 | 2022-12-23 | 崇辉半导体(江门)有限公司 | Stamping die for manufacturing semiconductor lead frame |
| CN115502277B (en) * | 2022-09-20 | 2023-06-20 | 崇辉半导体(江门)有限公司 | Stamping die for manufacturing semiconductor lead frame |
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