CN202779469U - Pit notching and cutting compound mould for integrated chip lead frame - Google Patents
Pit notching and cutting compound mould for integrated chip lead frame Download PDFInfo
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- CN202779469U CN202779469U CN 201220480597 CN201220480597U CN202779469U CN 202779469 U CN202779469 U CN 202779469U CN 201220480597 CN201220480597 CN 201220480597 CN 201220480597 U CN201220480597 U CN 201220480597U CN 202779469 U CN202779469 U CN 202779469U
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- lead frame
- integrated chip
- chip lead
- mould
- die
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Abstract
The utility model discloses a pit notching and cutting compound mould for an integrated chip lead frame, overcomes the defect of single notching of the conventional notching mould, and provides the compound mould which is precise in notching, system positioning, and cutting. The pit notching and cutting compound mould comprises an upper mould seat, a lower mould seat and a controller, wherein the upper mould seat and the lower mould seat are in sliding connection through four guide mechanisms; movable sliding blocks are arranged on guide rods; a concave mould is arranged on the lower mould seat; a square pit is formed in the center of the concave mould; positioning pins are symmetrically arranged on front and rear sides of the square pit; square through holes are formed in the corresponding parts of the movable sliding blocks and the square pit; positioning pin holes are formed in the corresponding parts of the movable sliding blocks and the positioning pins; a convex mould is formed in the central position of the upper mould seat; the heat of the convex mould can slidably penetrate through the square through holes; and a height adjusting device is arranged on the upper end of the convex mould; and the left side of the lower mould seat is provided with a fixed-length delivery device of the integrated chip lead frame, and the right side of the lower mould seat is provided with a cutting device of the integrated chip lead frame. According the pit notching and cutting compound mould, the notching, the system positioning and the fixed-length cutting can be processed precisely, and the punching machine guide rail error can be avoided.
Description
Technical field
The utility model belongs to integrated chip lead frame Stamping Die Technology field, is specifically related to a kind of integrated chip lead frame Ji Dao and plays mould recessed and that cut.
Background technology
The integrated chip lead frame comprises chip island and the peripheral a collection of pin at center, place, position, the bottom of chip island is provided with the pit of certain recessed degree, be called Ji Dao, Ji Dao is set so that chip embeds, this Ji Dao need to finish through Sheet Metal Forming Technology, this Sheet Metal Forming Technology is generally carried out continuously, be about to the indexing transfer of integrated chip lead frame coiled material to beating in the negative mold, under pinpoint condition, the Ji Dao position is beaten recessedly, broken after recessed the finishing integrated chip lead frame coiled material and carry out precision through cutting mould and cut; Described dimensional accuracy of beating the recess position, positional precision and form accuracy require all very high, if Design of Dies is unreasonable or the Mould Machining precision does not reach requirement, and products waste very easily; Moreover the positioning requirements of integrated chip lead frame coiled material is also extremely harsh, and the diel of prior art is the single-piece punching press mostly, so only single-piece is proposed positioning requirements; Mould is also arranged with coiled material blanking stamped workpieces, but two workpiece are separate before and after it, first positioning datum is not related with second positioning datum, only need separately location, therefore its positioning requirements and coiled material transmit precision and just need not strict restriction, and the punching precision of general workpiece also can not show a candle to the height that the punching precision of integrated chip lead frame requires; Integrated chip lead frame coiled material is in cutting, and the positioning datum that cuts first must be related with second positioning datum, belongs to the system location.
China Patent No. ZL200820119367.5 for example, name is called the utility model patent of " electrical heating butt screw concave point punching mold ", discloses a kind of electrical heating butt screw concave point punching mold, includes upper trimming die, positioning module, lower punch die, power transformer; The top electrode of upper trimming die is provided with upper mold core, and the bottom electrode of lower punch die is provided with lower mold core; During use, to rush negative mold is installed on punch press or the press, the top electrode of mould, bottom electrode are connected with the secondary coil of power transformer, to put on the location core rod of positioning module the silk blank, start punch press or press and drive punching press under the upper trimming die, the work of controller control power transformer, the contact point heat that has a resistance under contact point and lower mold core and blank on upper mold core and the blank, make upper contact point and the lower contact point intensification deliquescing of positioning module blank, and go out up and down two concave points.
It is this that what rush that negative mold considers emphatically is the problem that makes the lower hardness of material when punching press, as for transmitting precision, positioning accuracy and punching precision not under its words, this and the application's integrated chip lead frame coiled material transmits, Ji Dao plays the requirement recessed, that precision cuts and differs greatly, so its technical scheme can't be quoted by the application at all.
Summary of the invention
The utility model technical issues that need to address are, overcome the single defective of rushing recessed and independent location that negative mold lacks accurate conveyer and accurate cutting means of rushing of prior art, provide a kind of and have length conveying device and accurate cutting means concurrently, have that system locates and precision is rushed recessed integrated chip lead frame Ji Dao and beaten the recessed composite die that cuts.
The purpose of this utility model is achieved by following technical proposals: a kind of integrated chip lead frame Ji Dao beats the recessed composite die that cuts, comprise upper bolster, die shoe and be provided with microprocessor-based control device, upper bolster and die shoe being slidingly connected by four guiding mechanisms that consisted of by the guide pin bushing guide pillar that guide pillar is provided with movable slider; Die shoe is provided with die, and the central part of die is provided with square pit, and the both sides, front and back of square pit are arranged with some alignment pins according to certain rules; Movable slider is connected with patrix by four stop screws, and movable slider and four guide pillar cunnings are joined, and the movable slider position corresponding with square pit is provided with square through hole, and the movable slider position corresponding with alignment pin is provided with dowel hole; The upper bolster middle part is provided with punch, and the head of punch sees through the square through hole of movable slider slidably, and the punch upper end is provided with arrangement for adjusting height; The left side of die shoe is provided with integrated chip lead frame length conveying device, and the right side of die shoe is provided with integrated chip lead frame cutting means.
Integrated chip lead frame coiled material is sent to the top of die shoe by length conveying device, the dowel hole of integrated chip lead frame coiled material both sides is accurately aimed at alignment pin, then patrix presses down, compressing movable slider presses down together, the integrated chip lead frame coiled material that movable slider at first will have been aimed at alignment pin is pressed on the die shoe, patrix continues to press down, the punch head is cooperated with the square pit of die shoe exactly by the square through hole guiding of movable slider, extrudes Ji Dao at the integrated chip lead frame; Patrix is to up, movable slider doubles as stripper plate, the integrated chip lead frame is kept off above die shoe, length conveying device continues action, be pushed into cutting means with beating recessed integrated chip lead frame, simultaneously second section integrated chip lead frame is sent to and beats the recess position and by the alignment pin location, continue subsequent processing; The recessed degree of depth of beating of punch is regulated by the arrangement for adjusting height that is located at the punch upper end; Four guiding mechanisms that are made of the guide pin bushing guide pillar guarantee that upper and lower die holder accurately cooperates, and can guarantee to eliminate the stamping machine guiding error to the harmful effect of mould quality of fit; The action of all devices and mechanism is by the unified control of controller.
As preferably, the centre distance of all adjacent positioned pins is different.The not alignment pin setting of identical distance can prevent mould matched moulds when accidental step-out occurs length conveying device.
As preferably, the front side of square pit and rear side respectively are provided with 3 alignment pins, and the centre distance of adjacent positioned pin is respectively 4mm and 3mm.
As preferably, the edge of nose of punch is provided with rounding, and the R value of rounding is 0.1mm.
As preferably, the counterdie cutting edge of cutting means is the linearity structure, is provided with distance adjusting mechanism between counterdie cutting edge and the alignment pin.
As preferably, the counterdie cutting edge is flat sword, and the patrix cutting edge that matches with it is oblique sword.It is that cutting edge strength is high that the counterdie cutting edge adopts the advantage of flat sword structure, and the cutting edge size does not change with reconditioning cutting edge plane, and the cutting edge position does not change with reconditioning to guarantee to have adjusted accurately; The patrix cutting edge is oblique sword, make cut sharp, dimensionally stable accurately, prevent burr.
As preferably, the oblique angle of described oblique sword is 6-10 °.
As preferably, distance adjusting mechanism is made of differential thread.
As preferably, the left side that length conveying device is included in die shoe is provided with the support that is connected with die shoe, and support is provided with straightening mechanism, material guide mechanism, transmission mechanism, feeding clip mechanism and testing agency; Straightening mechanism is parallel to each other and consist of by the upper and lower straightener roll that arranges that mutually staggers by at least three, and the straightener roll that is positioned at the upper strata is provided with the Height Adjustment unit; The material guide mechanism that is positioned at the straightening mechanism rear end is by parallel and can regulate two stock guides of mutual distance and be connected institute with guide rail on being fixed on support and consist of; Transmission mechanism is made of the straight line cylinder that is fixed on the support, step distance adjustment piece and rear step distance adjustment piece before the position, rear and front end that the slide rail of straight line cylinder is positioned at the straight line cylinder cylinder body is connected with respectively; Feeding clip mechanism is made of the clamp on the cylinder body that is hinged on straight line cylinder and the folding cylinder that is fixed on the cylinder body, the upper jaw of clamp and lower jaw respectively are provided with the material folding piece, the upper claw beam middle part of clamp is hinged with the piston rod of folding cylinder, and lower claw beam is fixedly connected with cylinder body; Testing agency comprises the pedestal that is fixed on the support, the front position inductor that is located at the adjustable position on the pedestal and rear position sensor, and front position inductor and rear position sensor are electrically connected with microprocessor.Fixed length transmits automatically control.
As preferably, be located at the material folding piece of clamp lower jaw, its upper level equals or a little more than the upper surface of die.
The beneficial effects of the utility model are:
1, be provided with length conveying device, automatically control is produced continuously;
2, the not alignment pin setting of identical distance prevents mould matched moulds when accidental step-out occurs length conveying device;
3, the punch height is adjustable, accurately beats recessed;
4, system location, the front and back adjacent workpieces accurately cuts separation, stops to transmit the error products waste;
5, establish accurate cutting means, the flat sword of counterdie cutting edge, accurately fixed length cuts;
6, the guiding mechanism of four guide pillar guide pin bushings isolation stamping machine guiding error.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the length conveying device structure schematic top plan view of a kind of embodiment;
Fig. 3 is the straightening mechanism schematic perspective view.
Among the figure, upper bolster 1; Die shoe 2; Guide pillar 3; Movable slider 4; Punch 5; Length conveying device 6; Cutting means 7; Counterdie cutting edge 71; Cushion block 72; Basis cushion block 721; Adjust cushion block 722;
Patrix cutting edge 73; Support 8; Straightening mechanism 81; Straightener roll 811; Material guide mechanism 82; Stock guide 821; Guide rail 822; Transmission mechanism 83; Straight line cylinder 831; Slide rail 832; Front step distance adjustment piece 833; Rear step distance adjustment piece 834; Feeding clip mechanism 84; Material folding piece 841; Testing agency 85; Pedestal 851; Front position inductor 852; Rear position sensor 853.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment 1: as shown in Figure 1, a kind of integrated chip lead frame Ji Dao beats the recessed composite die that cuts, and comprises upper bolster 1, die shoe 2 and is provided with the microprocessor-based control device; Upper bolster 1 and die shoe 2 are slidingly connected by four guiding mechanisms that are made of the guide pin bushing guide pillar, and guide pillar 3 is provided with movable slider 4; Die shoe 2 is provided with die, the central part of die is provided with square pit, the both sides, front and back of square pit are arranged with 3 alignment pins according to certain rules, the centre distance of all adjacent positioned pins is different, the not identical distance of alignment pin arranges pattern, can prevent the mould matched moulds when accidental step-out occurs length conveying device, the centre distance of concrete is adjacent positioned pin is respectively 4mm and 3mm; The below of patrix is connected with movable slider by four stop screws and patrix, cover has back-moving spring on the screw, movable slider 4 and four 3 sliding joining of guide pillar, movable slider 4 position corresponding with square pit is provided with square through hole, the movable slider position corresponding with alignment pin is provided with dowel hole, and the mismatch error of alignment pin and dowel hole is less than 0.005mm; Upper bolster 1 middle part is provided with punch 5, and the head of punch 5 sees through the square through hole of movable slider 4 slidably, and punch 5 upper ends are provided with arrangement for adjusting height, and the edge of nose of punch is provided with rounding, and the R value of rounding is 0.1mm; The left side of die shoe 2 is provided with integrated chip lead frame length conveying device 6, and the right side of die shoe 2 is provided with integrated chip lead frame cutting means 7.
Integrated chip lead frame semi-finished product are that the state with coiled material provides, so before importing Mould Machining into, need coiled material is broadcasted with discharge mechanism, be sent to again the top of die shoe 2 by length conveying device 6, the dowel hole of integrated chip lead frame coiled material both sides is accurately aimed at alignment pin, then upper bolster presses down, compressing movable slider 4 also presses down together, the integrated chip lead frame coiled material that movable slider 4 at first will have been aimed at alignment pin is pressed on the die shoe 2, upper bolster continues to press down, the punch head is cooperated with the square pit of die shoe 2 exactly by the square through hole guiding of movable slider 4, extrude Ji Dao at the integrated chip lead frame, the position degree of Ji Dao is less than 0.16mm, and the recessed precision in basic island is less than 0.05mm; Beat recessed later on patrix to up, movable slider 4 doubles as stripper plate, the integrated chip lead frame is kept off above die shoe 2, length conveying device 6 continues action, be pushed into cutting means 7 with beating recessed integrated chip lead frame, simultaneously second section integrated chip lead frame is sent to and beats the recess position and by the alignment pin location, continue subsequent processing; The recessed degree of depth of beating of punch is regulated by the arrangement for adjusting height that is located at the punch upper end, and adjusting device is made of screw rod; Four guiding mechanisms that are made of the guide pin bushing guide pillar guarantee that upper and lower die holder accurately cooperates, and can guarantee to eliminate the stamping machine guiding error to the harmful effect of mould quality of fit; The action of all devices and mechanism is all by the unified control of controller.
The counterdie cutting edge 71 of cutting means 7 is the linearity structure, be provided with distance adjusting mechanism between counterdie cutting edge 71 and the alignment pin, distance adjusting mechanism is made of cushion block 72, and use screw fastening, cushion block comprises basic cushion block 721 and adjusts cushion block 722, reconditioning adjust the thickness of cushion block can intense adjustment counterdie cutting edge 71 and alignment pin between distance.
Counterdie cutting edge 71 is flat sword, the patrix cutting edge 73 that matches with it is oblique sword, it is that cutting edge strength is high that counterdie cutting edge 71 adopts the advantage of flat sword structure, and the cutting edge size does not change with reconditioning cutting edge plane, and the cutting edge position does not change with reconditioning to guarantee to have adjusted accurately; Patrix cutting edge 73 is oblique sword, and tiltedly the oblique angle of sword is 6-10 °, make cut sharp, dimensionally stable accurately, prevent burr.
The left side that length conveying device 6 is included in die shoe 2 is provided with the support 8 that is connected with die shoe 2, and support is provided with straightening mechanism 81, material guide mechanism 82, transmission mechanism 83, feeding clip mechanism 84 and testing agency 85, as shown in Figure 2.
The material guide mechanism 82 that is positioned at the straightening mechanism rear end is by parallel and can regulate two stock guides 821 of mutual distance and be connected institute with guide rail 822 on being fixed on support and consist of; Transmission mechanism 83 is made of the straight line cylinder 831 that is fixed on the support, step distance adjustment piece 833 and rear step distance adjustment piece 834 before the position, rear and front end that the slide rail 832 of straight line cylinder 831 is positioned at the straight line cylinder cylinder body is connected with respectively; Feeding clip mechanism 84 is made of the clamp on the cylinder body that is hinged on straight line cylinder and the folding cylinder that is fixed on the cylinder body, the upper jaw of clamp and lower jaw respectively are provided with material folding piece 841, the upper claw beam middle part of clamp is hinged with the piston rod of folding cylinder, and lower claw beam is fixedly connected with cylinder body; Testing agency 85 comprises the pedestal 851 that is fixed on the support, the front position inductor 852 that is located at the adjustable position on the pedestal and rear position sensor 853, and front position inductor and rear position sensor are electrically connected with microprocessor; Be located at the material folding piece 841 of clamp lower jaw, its upper level equals or a little more than the upper surface of die.
Integrated chip lead frame coiled material is through straightening mechanism 81 meticulous smoothings, reach material guide mechanism 82, parallel two stock guides 821 guiding coiled materials of material guide mechanism 82 accurately move forward, by the upper clamp of the feeding clip mechanism 84 of controller control around hinge axis, the integrated chip lead frame is clamped in 841 of the material foldings of upper jaw and lower jaw, then the cylinder body of straight line cylinder 831 drive clamp moves forward along slide rail, simultaneously also driving coiled material moves forward, here the place ahead of indication refers to the direction that coiled material moves, when cylinder body moves forward to when running into front step distance adjustment piece 833,852 actions of front position inductor, straight line cylinder stops, this moment, coiled material arrived the position of cutting mould, followed clamp on the folding cylinder releases, and coiled material is cut by cutting mould; Then straight line cylinder retreats when running into rear step distance adjustment piece to the cylinder body rear side again, rear position sensor action, and straight line cylinder stops to retreat, and system enters next process; The trapezium structure of upper and lower claw beam is walked around respectively stock guide, makes upper and lower jaw face the middle part of stock guide; This employing contact type measurement measurement of length value is reliable, avoids converting and the error accumulation of intermediate link, carefully adjusts the position of front step distance adjustment piece and rear step distance adjustment piece, just can accurately determine the cutoff length of integrated chip lead frame.
The utility model can be beaten recessed cutting in the production in enormous quantities at integrated chip lead frame Ji Dao and use, have length conveying device, automatically the advantage that recessed, accurate fixed length cut, isolated the stamping machine guiding error is accurately located, accurately beaten in control, system, if those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, and all will be included within the scope of claim of the present utility model the apparent modification of those skilled in the art like this.
Claims (10)
1. an integrated chip lead frame Ji Dao beats the recessed composite die that cuts, comprise upper bolster, die shoe and be provided with the microprocessor-based control device, it is characterized in that, upper bolster and die shoe are slidingly connected by four guiding mechanisms that are made of the guide pin bushing guide pillar, and guide pillar is provided with movable slider; Die shoe is provided with die, and the central part of die is provided with square pit, and the both sides, front and back of square pit are arranged with some alignment pins according to certain rules; The below of patrix is connected with movable slider by four stop screws and patrix, and movable slider and four guide pillar cunnings are joined, and the movable slider position corresponding with square pit is provided with square through hole, and the movable slider position corresponding with alignment pin is provided with dowel hole; The upper bolster middle part is provided with punch, and the head of punch sees through the square through hole of movable slider slidably, and the punch upper end is provided with arrangement for adjusting height; The left side of die shoe is provided with integrated chip lead frame length conveying device, and the right side of die shoe is provided with integrated chip lead frame cutting means.
2. integrated chip lead frame Ji Dao according to claim 1 beats the recessed composite die that cuts, and it is characterized in that the centre distance of all adjacent positioned pins is different.
3. integrated chip lead frame Ji Dao according to claim 2 beats the recessed composite die that cuts, and it is characterized in that, the front side of square pit and rear side respectively are provided with 3 alignment pins, and the centre distance of adjacent positioned pin is respectively 4mm and 3mm.
According to claim 1 and 2 or 3 described integrated chip lead frame Ji Dao beat the recessed composite die that cuts, it is characterized in that the edge of nose of punch is provided with rounding, the R value of rounding is 0.1mm.
According to claim 1 and 2 or 3 described integrated chip lead frame Ji Dao beat the recessed composite die that cuts, it is characterized in that the counterdie cutting edge of cutting means is the linearity structure, is provided with distance adjusting mechanism between counterdie cutting edge and the alignment pin.
6. integrated chip lead frame Ji Dao according to claim 5 beats the recessed composite die that cuts, and it is characterized in that, the counterdie cutting edge is flat sword, and the patrix cutting edge that matches with it is oblique sword.
7. integrated chip lead frame Ji Dao according to claim 6 beats the recessed composite die that cuts, and it is characterized in that, the oblique angle of described oblique sword is 6-10 °.
8. integrated chip lead frame Ji Dao according to claim 5 beats the recessed composite die that cuts, and it is characterized in that distance adjusting mechanism is made of differential thread.
According to claim 1 and 2 or 3 described integrated chip lead frame Ji Dao beat the recessed composite die that cuts, it is characterized in that, the left side that length conveying device is included in die shoe is provided with the support that is connected with die shoe, and support is provided with straightening mechanism, material guide mechanism, transmission mechanism, feeding clip mechanism and testing agency; Straightening mechanism is parallel to each other and consist of by the upper and lower straightener roll that arranges that mutually staggers by at least three, and the straightener roll that is positioned at the upper strata is provided with the Height Adjustment unit; The material guide mechanism that is positioned at the straightening mechanism rear end is by parallel and can regulate two stock guides of mutual distance and be connected institute with guide rail on being fixed on support and consist of; Transmission mechanism is made of the straight line cylinder that is fixed on the support, step distance adjustment piece and rear step distance adjustment piece before the position, rear and front end that the slide rail of straight line cylinder is positioned at the straight line cylinder cylinder body is connected with respectively; Feeding clip mechanism is made of the clamp on the cylinder body that is hinged on straight line cylinder and the folding cylinder that is fixed on the cylinder body, the upper jaw of clamp and lower jaw respectively are provided with the material folding piece, the upper claw beam middle part of clamp is hinged with the piston rod of folding cylinder, and lower claw beam is fixedly connected with cylinder body; Testing agency comprises the pedestal that is fixed on the support, the front position inductor that is located at the adjustable position on the pedestal and rear position sensor, and front position inductor and rear position sensor are electrically connected with microprocessor.
10. integrated chip lead frame Ji Dao according to claim 9 beats the recessed composite die that cuts, and it is characterized in that, is located at the material folding piece of clamp lower jaw, and its upper level equals or a little more than the upper surface of die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220480597 CN202779469U (en) | 2012-09-20 | 2012-09-20 | Pit notching and cutting compound mould for integrated chip lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220480597 CN202779469U (en) | 2012-09-20 | 2012-09-20 | Pit notching and cutting compound mould for integrated chip lead frame |
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| Publication Number | Publication Date |
|---|---|
| CN202779469U true CN202779469U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220480597 Expired - Fee Related CN202779469U (en) | 2012-09-20 | 2012-09-20 | Pit notching and cutting compound mould for integrated chip lead frame |
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| Country | Link |
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| CN (1) | CN202779469U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909268A (en) * | 2012-09-20 | 2013-02-06 | 浙江捷华电子有限公司 | Concave pit notching and cutting composite mould for integrated chip lead frame |
| CN108889846A (en) * | 2018-07-12 | 2018-11-27 | 南京迈森精密模具有限公司 | A kind of preforming and end face leveling die of spoke stretching |
-
2012
- 2012-09-20 CN CN 201220480597 patent/CN202779469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909268A (en) * | 2012-09-20 | 2013-02-06 | 浙江捷华电子有限公司 | Concave pit notching and cutting composite mould for integrated chip lead frame |
| CN102909268B (en) * | 2012-09-20 | 2015-07-15 | 浙江捷华电子有限公司 | Concave pit notching and cutting composite mould for integrated chip lead frame |
| CN108889846A (en) * | 2018-07-12 | 2018-11-27 | 南京迈森精密模具有限公司 | A kind of preforming and end face leveling die of spoke stretching |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |