CN112795968A - High efficiency lead frame silver-plating tool - Google Patents
High efficiency lead frame silver-plating tool Download PDFInfo
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- CN112795968A CN112795968A CN202011549631.0A CN202011549631A CN112795968A CN 112795968 A CN112795968 A CN 112795968A CN 202011549631 A CN202011549631 A CN 202011549631A CN 112795968 A CN112795968 A CN 112795968A
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- lead frame
- seat
- fixedly connected
- frame
- jig
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- 238000007747 plating Methods 0.000 title claims abstract description 59
- 238000009713 electroplating Methods 0.000 claims abstract description 52
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052709 silver Inorganic materials 0.000 claims abstract description 38
- 239000004332 silver Substances 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 239000007787 solid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 2
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 1
- ZUPBPXNOBDEWQT-UHFFFAOYSA-N [Si].[Ni].[Cu] Chemical compound [Si].[Ni].[Cu] ZUPBPXNOBDEWQT-UHFFFAOYSA-N 0.000 description 1
- VRUVRQYVUDCDMT-UHFFFAOYSA-N [Sn].[Ni].[Cu] Chemical class [Sn].[Ni].[Cu] VRUVRQYVUDCDMT-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/004—Sealing devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
- C25D17/08—Supporting racks, i.e. not for suspending
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/10—Agitating of electrolytes; Moving of racks
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4821—Flat leads, e.g. lead frames with or without insulating supports
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a high-efficiency silver plating jig for a lead frame, which comprises a fixed base, wherein the top of the fixed base is respectively and fixedly connected with a feeding conveyer belt, a jig seat and a discharging conveyer belt, an electroplating bath is arranged in an inner cavity of the jig seat, the right side of the feeding conveyer belt is communicated with the left side of the jig seat, the top of the jig seat is respectively and fixedly connected with a fixed frame and a supporting frame, the top of the fixed frame is fixedly connected with a top frame, and the top frame is fixedly connected with a connecting frame. This silver-plated tool of high efficiency lead frame carries out the pay-off through the feeding conveyer belt, and processing finishes the back, moves the drive push pedal right through removing the seat and moves, and the push pedal promotes the lead frame and makes its surface slide along the tool seat, slides the ejection of compact conveyer belt on right side, is seen off by ejection of compact conveyer belt, can carry out ejection of compact operation, easy operation, convenient to use to the lead frame automatically.
Description
Technical Field
The invention relates to the technical field of lead frame silver plating, in particular to a high-efficiency lead frame silver plating jig.
Background
The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between the leading-out end of an internal circuit of a chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to use the lead frame in most semiconductor integrated blocks, is an important basic material in the electronic information industry, is roughly divided into a copper-iron system, a copper-nickel-silicon system and a copper-chromium system by copper alloy, the copper-nickel-tin series (JK-2 alloy) and other ternary and quaternary multi-element copper alloys can obtain better performance and lower cost than the traditional binary alloys, and the copper-iron series alloy has the most brands, better mechanical strength, stress relaxation resistance and low creep property, thereby being a good lead frame material. Due to the requirements of lead frame manufacturing and packaging application, besides high strength and high heat conductivity, the material is required to have good brazing performance, processing performance, etching performance, oxide film bonding performance and the like. The material is developed towards high strength, high conductivity and low cost, a small amount of various elements are added into copper, and the alloy strength (leading a lead frame not to be easily deformed) and the comprehensive performance are improved under the principle of not obviously reducing the conductivity.
According to a lead frame correction tool and lead frame of patent No. CN207489809U, when using, the shortcoming is as follows:
(1) when the lead frame is processed, the feeding and the blanking are very inconvenient, a large amount of processing time is wasted, and the processing speed is reduced.
(2) When electroplating is performed, a large amount of waste is generated due to overflow of the electroplating solution.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-efficiency lead frame silver plating jig, which solves the problems that when a lead frame is processed, the feeding and the blanking are very inconvenient, a large amount of processing time is wasted, and the processing speed is reduced.
In order to achieve the purpose, the invention is realized by the following technical scheme: a high-efficiency silver plating jig for a lead frame comprises a fixed base, wherein the top of the fixed base is respectively and fixedly connected with a feeding conveyer belt, a jig seat and a discharging conveyer belt, an electroplating bath is arranged in an inner cavity of the jig seat, the right side of the feeding conveyer belt is communicated with the left side of the jig seat, the top of the jig seat is respectively and fixedly connected with a fixed frame and a supporting frame, the top of the fixed frame is fixedly connected with an upper frame, the surface of the upper frame is respectively and fixedly connected with a guide rod and a driving motor, the right end of an output shaft of the driving motor is fixedly connected with a driving shaft through a coupler, the right end of the driving shaft penetrates through one side of the connecting frame and extends to the other side of the connecting frame, the surface of the driving shaft is rotatably connected with the inner cavity of the connecting frame, the surface of the driving shaft is in threaded connection with a movable seat, one, the surface of guide bar and the inner chamber sliding connection who removes the seat, the first cylinder of bottom fixedly connected with of removal seat, the bottom fixedly connected with push pedal of first cylinder piston rod, the fixed surface of removal seat is connected with the connecting plate, the bottom fixedly connected with solid fixed cylinder of connecting plate, the top fixedly connected with slide bar of push pedal, the top of slide bar runs through the bottom of solid fixed cylinder and extends to the inner chamber of solid fixed cylinder, carries out the pay-off through the feeding conveyer belt, and the back of finishing is moved right through removing the seat and is driven the push pedal and remove, and the push pedal promotes the lead frame and makes its surface slip along the tool seat, slides the ejection of compact conveyer belt on right side, is seen off by ejection of compact conveyer belt, can carry out ejection of compact operation to the lead frame automatically, easy.
As a further scheme of the invention: the top fixedly connected with electric push rod of support frame, the bottom of electric push rod runs through the top of support frame and extends to the below of support frame, the bottom fixedly connected with cope match-plate pattern of electric push rod piston rod.
As a further scheme of the invention: the fixture seat is characterized in that the top of the fixture seat is movably connected with a lead frame and a limiting plate, the top of the limiting plate is movably connected with a fastening bolt through a locking groove, the bottom end of the fastening bolt penetrates through the top of the fixture seat and extends to the inner cavity of the fixture seat, and the surface of the fastening bolt is in threaded connection with the inner cavity of the fixture seat.
As a further scheme of the invention: the bottom fixedly connected with spacing needle of cope match-plate pattern, the bottom from the top down of spacing needle runs through lead frame and tool seat in proper order and extends to the inner chamber of tool seat, the movable groove with the surperficial swing joint of spacing needle is seted up to the inner chamber of tool seat.
As a further scheme of the invention: the dead slot has been seted up to the inner chamber of tool seat, the inner chamber fixedly connected with second promotion cylinder of dead slot, the sliding surface of tool seat is connected with the shielding plate, the top fixed connection of connecting block and second promotion cylinder piston rod is passed through to the bottom of shielding plate, the fixed surface of shielding plate is connected with sealed the pad, starts second promotion cylinder, and second promotion cylinder drives the shielding plate and upwards slides on the surface of tool seat, drives sealed the pad and slides into the plating bath, and sealed the pad loses the extrusion on tool seat surface, expands in the plating bath, seals up the plating bath, adds the plating solution in to the plating bath through the plating solution storage box this moment, to lead frame silvering, silver-plating finishes the back, emits the plating solution, can be quick seals up the plating solution, prevents that the plating solution from leaking.
As a further scheme of the invention: the surface of the sealing gasket is abutted to the inner cavity of the electroplating bath in an interference fit manner, the surface of the sealing gasket is provided with two guide inclined planes, and the two sealing gaskets are symmetrically distributed on the surface of the shielding plate.
As a further scheme of the invention: the limiting plates are arranged in two numbers and are symmetrically distributed at the top of the jig seat, the surfaces of the limiting plates are abutted to the surface of the lead frame, the limiting plates are right-angle trapezoidal plates with gradually increasing widths from left to right, and the surfaces of the limiting plates, which are in contact with the lead frame, are inclined planes.
As a further scheme of the invention: the both sides of tool seat equal fixedly connected with plating solution storage box, the inner chamber of plating solution storage box passes through the inner chamber intercommunication of liquid outlet pipe and plating bath.
As a further scheme of the invention: the using method of the silver plating jig comprises the following steps:
firstly, conveying the lead frame by a feeding conveying belt during silver plating, conveying the lead frame into a jig seat, sliding the lead frame into the top of the jig seat along the inclined plane of the surface of a limiting plate under the pushing of the feeding conveying belt, and supporting two sides of the lead frame by the limiting plate for limiting;
step two, starting an electric push rod to drive an upper template to press downwards, pressing the upper template downwards to extrude the top of the lead frame, enabling a limiting needle to penetrate through the lead frame and a jig seat in sequence at the moment, inserting the bottom end of the limiting needle into a movable groove to fix the lead frame, then starting a second pushing cylinder, driving a shielding plate to slide upwards on the surface of the jig seat by the second pushing cylinder, driving a sealing gasket to slide into an electroplating groove, losing the extrusion on the surface of the jig seat, expanding in the electroplating groove, sealing the electroplating groove, adding electroplating solution into the electroplating groove through an electroplating solution storage box at the moment, plating silver on the lead frame, and discharging the electroplating solution after the silver plating is finished;
step three, after the electroplating solution is discharged, a second pushing cylinder is withdrawn, the second pushing cylinder drives a piston rod to withdraw, the piston rod drives a shielding plate to slide downwards, a sealing gasket is withdrawn, an electric push rod is withdrawn at the moment, the electric push rod drives an upper template to ascend, an upper limiting needle sequentially ascends from a lead frame and a jig seat, the bottom end of the limiting needle is pulled out of a movable groove, the lead frame is not fixed, a first cylinder is started at the moment, a push plate is driven to move downwards, when the push plate moves downwards, a sliding rod is driven to slide downwards in a fixed cylinder, the push plate moves downwards at the moment, the same horizontal plane with the lead frame is kept, then a driving motor is started, the driving motor drives a driving shaft to rotate, the driving shaft rotates to drive a moving seat to slide rightwards along a guide rod, the moving seat drives the push plate to move right, the discharging conveyer belt slides to the right side and is sent out by the discharging conveyer belt;
and step four, after the lead frame is output, reversely driving the driving motor to drive the movable seat to retract, then retracting the first air cylinder to lift the push plate, and inputting a new lead frame through the feeding conveyer belt to repeat the above operations for processing.
Advantageous effects
The invention provides a high-efficiency silver plating jig for a lead frame. Compared with the prior art, the method has the following beneficial effects:
1. a high-efficiency silver plating jig for a lead frame is characterized in that a feeding conveyer belt, a jig seat and a discharging conveyer belt are respectively and fixedly connected to the top of a fixed base, an electroplating bath is arranged in an inner cavity of the jig seat, the right side of the feeding conveyer belt is communicated with the left side of the jig seat, the top of the jig seat is respectively and fixedly connected with a fixed frame and a supporting frame, the top of the fixed frame is fixedly connected with a top frame, the surface of the top frame is respectively and fixedly connected with a guide rod and a driving motor, the right end of an output shaft of the driving motor is fixedly connected with a driving shaft through a coupler, the right end of the driving shaft penetrates through one side of the connected frame and extends to the other side of the connected frame, the surface of the driving shaft is rotatably connected with the inner cavity of the connected frame, the surface of, the surface of guide bar and the inner chamber sliding connection who removes the seat, remove the first cylinder of bottom fixedly connected with of seat, the bottom fixedly connected with push pedal of first cylinder piston rod, the fixed surface connection who removes the seat is connected with the connecting plate, the bottom fixedly connected with solid fixed cylinder of connecting plate, the top fixedly connected with slide bar of push pedal, the bottom of solid fixed cylinder is run through on the top of slide bar and is extended to the inner chamber of solid fixed cylinder, carry out the pay-off through the feeding conveyer belt, the back finishes processing, move the right side through removing the seat and drive the push pedal and remove, the push pedal promotes the lead frame and makes its surperficial slip along the tool seat, slide the ejection of compact conveyer belt on right side, see off by ejection of compact conveyer belt, can.
2. A high-efficiency silver plating jig for a lead frame is characterized in that an empty groove is formed in an inner cavity of a jig seat, a second pushing cylinder is fixedly connected to the inner cavity of the empty groove, a shielding plate is slidably connected to the surface of the jig seat, the bottom of the shielding plate is fixedly connected with the top end of a piston rod of the second pushing cylinder through a connecting block, a sealing gasket is fixedly connected to the surface of the shielding plate, the surface of the sealing gasket is abutted to the inner cavity of a plating bath in an interference fit manner, two guiding inclined planes are formed in the surface of the sealing gasket, the two sealing gaskets are symmetrically distributed on the surface of the shielding plate, the second pushing cylinder is started, the shielding plate is driven to slide upwards on the surface of the jig seat by the second pushing cylinder, the sealing gasket is driven to slide into the plating bath, the sealing gasket loses the extrusion on the surface of the jig, the lead frame is plated with silver, and after the silver plating is finished, the electroplating solution is discharged, so that the electroplating solution can be quickly sealed, and the leakage of the electroplating solution is prevented.
3. A high-efficiency silver plating jig for a lead frame is characterized in that an electric push rod is fixedly connected to the top of a support frame, the bottom end of the electric push rod penetrates through the top of the support frame and extends to the lower portion of the support frame, an upper template is fixedly connected to the bottom end of a piston rod of the electric push rod, a lead frame and a limiting plate are movably connected to the top of a jig seat, a fastening bolt is movably connected to the top of the limiting plate through a locking groove, the bottom end of the fastening bolt penetrates through the top of the jig seat and extends to an inner cavity of the jig seat, the surface of the fastening bolt is in threaded connection with the inner cavity of the jig seat, a limiting needle is fixedly connected to the bottom of the upper template, the bottom end of the limiting needle sequentially penetrates through the lead frame and the jig seat from top to bottom and extends to the inner cavity of the jig seat, a movable groove movably connected with the surface, spacing needle runs through lead frame and tool seat in proper order this moment, and the bottom of spacing needle is pegged graft at the movable groove, fixes the lead frame, can be quick fix the lead frame, under the spacing of limiting plate, it is more convenient to fix.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a side view of a jig base structure according to the present invention;
FIG. 3 is a top view of the fixing frame structure of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 2;
FIG. 6 is a side view of the shutter structure of the present invention.
In the figure: 1. a fixed base; 2. a feed conveyor belt; 3. a jig base; 4. a discharge conveyer belt; 5. an electroplating bath; 6. a fixed mount; 7. a support frame; 8. a top frame; 9. a connecting frame; 10. a guide bar; 11. a drive motor; 12. a drive shaft; 13. a movable seat; 14. a first cylinder; 15. pushing the plate; 16. a connecting plate; 17. a slide bar; 18. an electric push rod; 19. mounting a template; 20. a lead frame; 21. a limiting plate; 22. fastening a bolt; 23. a limit needle; 24. a movable groove; 25. a second push cylinder; 26. a shielding plate; 27. and a gasket.
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.
Referring to fig. 1-6, the present invention provides a technical solution: a high-efficiency silver plating jig for a lead frame comprises a fixed base 1, wherein the top of the fixed base 1 is respectively and fixedly connected with a feeding conveyer belt 2, a jig seat 3 and a discharging conveyer belt 4, the feeding is carried out through the feeding conveyer belt 2, after the processing is finished, a moving seat 13 moves rightwards to drive a push plate 15 to move rightwards, the push plate 15 pushes the lead frame 20 to slide along the surface of the jig seat 3, the discharging conveyer belt 4 sliding to the right side is sent out by the discharging conveyer belt 4, the discharging operation of the lead frame 20 can be automatically carried out, the operation is simple and convenient to use, an electroplating bath 5 is arranged in an inner cavity of the jig seat 3, the right side of the feeding conveyer belt 2 is communicated with the left side of the jig seat 3, the top of the jig seat 3 is respectively and fixedly connected with a fixed frame 6 and a supporting, the surface of the connecting frame 9 is fixedly connected with a guide rod 10 and a driving motor 11 respectively, the right end of an output shaft of the driving motor 11 is fixedly connected with a driving shaft 12 through a coupler, the right end of the driving shaft 12 penetrates through one side of the connecting frame 9 and extends to the other side of the connecting frame 9, the surface of the driving shaft 12 is rotatably connected with an inner cavity of the connecting frame 9, the surface of the driving shaft 12 is in threaded connection with a movable seat 13, one end of the guide rod 10 penetrates through one side of the movable seat 13 and extends to the other side of the movable seat 13, the surface of the guide rod 10 is in sliding connection with the inner cavity of the movable seat 13, the bottom of the movable seat 13 is fixedly connected with a first air cylinder 14, the bottom end of a piston rod of the first air cylinder 14 is fixedly connected with a push plate 15, the surface of the movable seat 13 is fixedly connected with a connecting plate 16, the bottom of the connecting plate 16 is fixedly connected with, the top of the supporting frame 7 is fixedly connected with an electric push rod 18, the bottom end of the electric push rod 18 penetrates through the top of the supporting frame 7 and extends to the lower part of the supporting frame 7, the bottom end of a piston rod of the electric push rod 18 is fixedly connected with an upper template 19, the top of the jig seat 3 is movably connected with a lead frame 20 and a limiting plate 21, the electric push rod 18 is started to drive the upper template 19 to press downwards, the upper template 19 presses downwards and presses the top of the lead frame 20, at the moment, a limiting needle 23 sequentially penetrates through the lead frame 20 and the jig seat 3, the bottom end of the limiting needle 23 is inserted into a movable groove 24 to fix the lead frame 20, the lead frame 20 can be rapidly fixed, under the limiting of the limiting plate 21, the fixing is more convenient, the top of the limiting plate 21 is movably connected with a fastening bolt 22 through a locking groove, the bottom end of the fastening bolt 22 penetrates through the top of the jig, the bottom of the upper template 19 is fixedly connected with a limiting needle 23, the bottom end of the limiting needle 23 sequentially penetrates through the lead frame 20 and the jig seat 3 from top to bottom and extends to the inner cavity of the jig seat 3, the inner cavity of the jig seat 3 is provided with a movable groove 24 movably connected with the surface of the limiting needle 23, the inner cavity of the jig seat 3 is provided with an empty groove, the inner cavity of the empty groove is fixedly connected with a second pushing cylinder 25, the second pushing cylinder 25 is started, the second pushing cylinder 25 drives the shielding plate 26 to slide upwards on the surface of the jig seat 3 and drives the sealing gasket 27 to slide into the electroplating groove 5, the sealing gasket 27 loses the extrusion on the surface of the jig seat 3, the electroplating groove 5 is expanded and sealed, at the moment, electroplating solution is added into the electroplating groove 5 through an electroplating solution storage box, the lead frame 20 is plated with silver, after the silver plating is finished, the electroplating solution is discharged, the, the surface of the jig base 3 is connected with a baffle plate 26 in a sliding way, the bottom of the baffle plate 26 is fixedly connected with the top end of a piston rod of the second pushing cylinder 25 through a connecting block, the surface of the baffle plate 26 is fixedly connected with a sealing gasket 27, the surface of the sealing gasket 27 is abutted against the inner cavity of the electroplating bath 5 through interference fit, the surface of the sealing gasket 27 is provided with two guiding inclined planes, the number of the sealing gaskets 27 is two, and at the surperficial symmetric distribution of shielding plate 26, limiting plate 21 is provided with two, and at the top symmetric distribution of tool seat 3, the surface of limiting plate 21 and lead frame 20's surface butt, limiting plate 21 is the right angle trapezoidal plate of width crescent from left to right, and the surface of limiting plate 21 and lead frame 20 contact is the inclined plane, the equal fixedly connected with plating solution storage box in both sides of tool seat 3, and the inner chamber of plating solution storage box is through the inner chamber intercommunication of liquid outlet pipe with plating bath 5.
The using method of the silver plating jig comprises the following steps:
firstly, during silver plating, conveying is carried out through a feeding conveying belt 2, a lead frame 20 is conveyed into a jig seat 3, the lead frame 20 slides into the top of the jig seat 3 along an inclined plane on the surface of a limiting plate 21 under the pushing of the feeding conveying belt 2, and the limiting plate 21 supports two sides of the lead frame 20 for limiting;
step two, starting the electric push rod 18 to drive the upper template 19 to press downwards, pressing and extruding the upper template 19 to the top of the lead frame 20, enabling the limiting needle 23 to sequentially penetrate through the lead frame 20 and the jig seat 3 at the moment, inserting the bottom end of the limiting needle 23 into the movable groove 24 to fix the lead frame 20, then starting the second pushing cylinder 25, enabling the second pushing cylinder 25 to drive the shielding plate 26 to slide upwards on the surface of the jig seat 3, driving the sealing gasket 27 to slide into the electroplating groove 5, enabling the sealing gasket 27 to lose the extrusion on the surface of the jig seat 3, expanding in the electroplating groove 5, sealing the electroplating groove 5, adding electroplating solution into the electroplating groove 5 through the electroplating solution storage box at the moment, plating the lead frame 20 with silver, and discharging the electroplating solution after the silver plating is;
step three, after the electroplating solution is discharged, the second pushing cylinder 25 is withdrawn, the second pushing cylinder 25 drives the piston rod to withdraw, the piston rod drives the shielding plate 26 to slide downwards, the sealing gasket 27 is withdrawn, the electric push rod 18 is withdrawn at the moment, the electric push rod 18 drives the upper template 19 to ascend, the upper limiting needle 23 sequentially rises from the lead frame 20 and the jig seat 3, the bottom end of the limiting needle 23 is pulled out of the movable groove 24, the lead frame 20 is not fixed, the first cylinder 14 is started at the moment, the push plate 15 is driven to move downwards, the sliding rod 17 is driven to slide downwards in the fixed cylinder when the push plate 15 moves downwards, the push plate 15 moves downwards at the moment, the same horizontal plane with the lead frame 20 is kept, then the driving motor 11 is started, the driving shaft 11 drives the driving shaft 12 to rotate, the driving shaft 12 drives the guide rod 10 of the moving seat 13 to slide rightwards, the moving seat, the push plate 15 pushes the lead frame 20 to slide along the surface of the jig base 3, slides to the discharging conveyer belt 4 on the right side, and is sent out by the discharging conveyer belt 4;
and step four, after the lead frame 20 is output, reversely driving the driving motor 11 to drive the movable seat 13 to retract, then retracting the first air cylinder 14 to lift the push plate 15, and inputting a new lead frame 20 through the feeding conveyer belt 2 to repeat the above operations for processing.
When the silver plating device is used, during silver plating, the feeding conveyer belt 2 is used for conveying, the lead frame 20 is conveyed into the jig base 3, the lead frame 20 slides into the top of the jig base 3 along the inclined plane of the surface of the limiting plate 21 under the pushing of the feeding conveyer belt 2, and the limiting plate 21 supports the two sides of the lead frame 20 for limiting; starting an electric push rod 18 to drive an upper template 19 to press downwards, pressing the upper template 19 downwards to extrude the top of a lead frame 20, enabling a limiting needle 23 to sequentially penetrate through the lead frame 20 and a jig seat 3 at the moment, inserting the bottom end of the limiting needle 23 into a movable groove 24 to fix the lead frame 20, then starting a second pushing cylinder 25, enabling the second pushing cylinder 25 to drive a shielding plate 26 to slide upwards on the surface of the jig seat 3, driving a sealing gasket 27 to slide into an electroplating groove 5, enabling the sealing gasket 27 to lose the extrusion on the surface of the jig seat 3, expanding in the electroplating groove 5, sealing the electroplating groove 5, adding electroplating solution into the electroplating groove 5 through an electroplating solution storage box at the moment, plating silver on the lead frame 20, and discharging the electroplating solution after the silver plating is; after the electroplating solution is discharged, the second pushing cylinder 25 is withdrawn, the second pushing cylinder 25 drives the piston rod to withdraw, the piston rod drives the shielding plate 26 to slide downwards, the sealing gasket 27 is withdrawn, the electric push rod 18 is withdrawn at the moment, the electric push rod 18 drives the upper template 19 to ascend, the upper limiting needle 23 sequentially ascends from the lead frame 20 and the jig seat 3, the bottom end of the limiting needle 23 is pulled out of the movable groove 24 to cancel the fixation of the lead frame 20, the first cylinder 14 is started at the moment to drive the push plate 15 to move downwards, the push plate 15 drives the sliding rod 17 to slide downwards in the fixed cylinder when moving downwards, the push plate 15 moves downwards at the moment, keeps the same horizontal plane with the lead frame 20, then the driving motor 11 is started, the driving shaft 11 drives the driving shaft 12 to rotate, the driving shaft 12 rotates to drive the moving seat 13 to slide rightwards along the guide rod 10, the moving, the push plate 15 pushes the lead frame 20 to slide along the surface of the jig base 3, slides to the discharging conveyer belt 4 on the right side, and is sent out by the discharging conveyer belt 4; after the lead frame 20 is output, the driving motor 11 is driven reversely to drive the movable seat 13 to retract, then the first air cylinder 14 is retracted, the push plate 15 is lifted, and at the moment, a new lead frame 20 is input through the feeding conveyer belt 2 to repeat the above operations for processing.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (9)
1. The utility model provides a silver-plated tool of high efficiency lead frame, includes unable adjustment base (1), its characterized in that: the top of the fixed base (1) is respectively and fixedly connected with a feeding conveyer belt (2), a jig seat (3) and a discharging conveyer belt (4), an electroplating bath (5) is arranged in an inner cavity of the jig seat (3), the right side of the feeding conveyer belt (2) is communicated with the left side of the jig seat (3), the top of the jig seat (3) is respectively and fixedly connected with a fixed frame (6) and a supporting frame (7), the top of the fixed frame (6) is fixedly connected with a top frame (8), the top frame (8) is fixedly connected with a connecting frame (9), the surface of the connecting frame (9) is respectively and fixedly connected with a guide rod (10) and a driving motor (11), the right end of an output shaft of the driving motor (11) is fixedly connected with a driving shaft (12) through a coupler, the right end of the driving shaft (12) penetrates through one side of the connecting frame (9) and extends to, the surface of the driving shaft (12) is rotationally connected with the inner cavity of the connecting frame (9), the surface of the driving shaft (12) is in threaded connection with a movable seat (13), one end of the guide rod (10) penetrates through one side of the moving seat (13) and extends to the other side of the moving seat (13), the surface of the guide rod (10) is connected with the inner cavity of the movable seat (13) in a sliding way, the bottom of the movable seat (13) is fixedly connected with a first air cylinder (14), the bottom end of the piston rod of the first cylinder (14) is fixedly connected with a push plate (15), the surface of the movable seat (13) is fixedly connected with a connecting plate (16), the bottom of the connecting plate (16) is fixedly connected with a fixed cylinder, the top of push pedal (15) fixedly connected with slide bar (17), the top of slide bar (17) runs through the bottom of a fixed section of thick bamboo and extends to the inner chamber of a fixed section of thick bamboo.
2. The high-efficiency lead frame silver plating jig according to claim 1, characterized in that: the top fixedly connected with electric push rod (18) of support frame (7), the bottom of electric push rod (18) runs through the top of support frame (7) and extends to the below of support frame (7), the bottom fixedly connected with cope match-plate pattern (19) of electric push rod (18) piston rod.
3. The high-efficiency lead frame silver plating jig according to claim 2, characterized in that: the top swing joint of tool seat (3) has lead frame (20) and limiting plate (21), there are fastening bolt (22) at the top of limiting plate (21) through locking groove swing joint, the bottom of fastening bolt (22) runs through the top of tool seat (3) and extends to the inner chamber of tool seat (3), the surface of fastening bolt (22) and the inner chamber threaded connection of tool seat (3).
4. The high-efficiency lead frame silver plating jig according to claim 3, characterized in that: the bottom fixedly connected with spacing needle (23) of cope match-plate pattern (19), the bottom from the top down of spacing needle (23) runs through lead frame (20) and tool seat (3) in proper order and extends to the inner chamber of tool seat (3), movable groove (24) with the surperficial swing joint of spacing needle (23) are seted up to the inner chamber of tool seat (3).
5. The high-efficiency lead frame silver plating jig according to claim 1, characterized in that: the inner chamber of tool seat (3) has seted up the dead slot, the inner chamber fixedly connected with second push cylinder (25) of dead slot, the surperficial sliding connection of tool seat (3) has shielding plate (26), the top fixed connection of connecting block and second push cylinder (25) piston rod is passed through to the bottom of shielding plate (26), the surperficial fixedly connected with of shielding plate (26) seals up pad (27).
6. The high-efficiency lead frame silver plating jig according to claim 5, characterized in that: the surface of the sealing gasket (27) is abutted to the inner cavity of the electroplating bath (5) in an interference fit manner, the surface of the sealing gasket (27) is provided with two guide inclined planes, and the two sealing gaskets (27) are symmetrically distributed on the surface of the shielding plate (26).
7. The high-efficiency lead frame silver plating jig according to claim 3, characterized in that: limiting plate (21) are provided with two, and at the top symmetric distribution of tool seat (3), the surface of limiting plate (21) and the surface butt of lead frame (20), limiting plate (21) are the right angle trapezoidal plate that the width progressively increases from left to right, the surface of limiting plate (21) and lead frame (20) contact is the inclined plane.
8. The high-efficiency lead frame silver plating jig according to claim 1, characterized in that: the both sides of tool seat (3) are equal fixedly connected with plating solution storage box, the inner chamber of plating solution storage box passes through the inner chamber intercommunication of liquid outlet pipe and plating bath (5).
9. The high-efficiency lead frame silver plating jig according to claim 1, characterized in that: the using method of the silver plating jig comprises the following steps:
firstly, conveying the lead frame (20) into a jig seat (3) through a feeding conveying belt (2) during silver plating, sliding the lead frame (20) into the top of the jig seat (3) along an inclined plane on the surface of a limiting plate (21) under the pushing of the feeding conveying belt (2), and propping two sides of the lead frame (20) by the limiting plate (21) for limiting;
step two, the electric push rod (18) is started to drive the upper template (19) to press downwards, the upper template (19) presses downwards and extrudes on the top of the lead frame (20), at the moment, the limiting needle (23) sequentially penetrates through the lead frame (20) and the jig base (3), the bottom end of the limiting needle (23) is inserted in the movable groove (24), fixing the lead frame (20), starting a second pushing cylinder (25), driving a shielding plate (26) to slide upwards on the surface of the jig seat (3) by the second pushing cylinder (25), driving a sealing gasket (27) to slide into the electroplating tank (5), losing the extrusion of the surface of the jig seat (3) by the sealing gasket (27), expanding in the electroplating bath (5), sealing the electroplating bath (5), adding electroplating solution into the electroplating bath (5) through an electroplating solution storage box, plating silver on the lead frame (20), and discharging the electroplating solution after the plating silver is finished;
step three, after the electroplating solution is discharged, a second pushing cylinder (25) is withdrawn, the second pushing cylinder (25) drives a piston rod to withdraw, the piston rod drives a baffle plate (26) to slide downwards, a sealing gasket (27) is withdrawn, an electric push rod (18) is withdrawn at the moment, the electric push rod (18) drives an upper template (19) to ascend, an upper limiting pin (23) sequentially rises from a lead frame (20) and a jig seat (3), the bottom end of the limiting pin (23) is pulled out from a movable groove (24), the lead frame (20) is not fixed, a first cylinder (14) is started at the moment to drive a push plate (15) to move downwards, the push plate (15) is driven to slide downwards in a fixed cylinder when moving downwards, the push plate (15) moves downwards and keeps the same horizontal plane with the lead frame (20), then a driving motor (11) is started, and the driving motor (11) drives a driving shaft (12) to rotate, the driving shaft (12) rotates to drive the moving seat (13) to slide rightwards along the guide rod (10), the moving seat (13) moves rightwards to drive the push plate (15) to move rightwards, the push plate (15) pushes the lead frame (20) to slide along the surface of the jig seat (3), the lead frame slides to the discharging conveyer belt (4) on the right side, and the lead frame is sent out by the discharging conveyer belt (4);
and step four, after the lead frame (20) is output, reversely driving the driving motor (11) to drive the movable seat (13) to retract, then retracting the first air cylinder (14), lifting the push plate (15), and inputting a new lead frame (20) through the feeding conveyer belt (2) to repeat the above operations for processing.
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