CN103736812A - Mold housing and high precision manufacturing method thereof - Google Patents
Mold housing and high precision manufacturing method thereof Download PDFInfo
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- CN103736812A CN103736812A CN201410009290.6A CN201410009290A CN103736812A CN 103736812 A CN103736812 A CN 103736812A CN 201410009290 A CN201410009290 A CN 201410009290A CN 103736812 A CN103736812 A CN 103736812A
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Abstract
The invention provides a mold housing and a high precision manufacturing method thereof. The mold housing and the high precision manufacturing method thereof solve the problems that an R angle of an existing mold housing, which is generated due to integrated forming technology, can not achieve a clamping function in the manufacturing process of the existing mold housing, rough selvedges of an incision influence assembly accuracy and quality and the like. The mold housing comprises a body in sheet shape, wherein a plurality of insertion feet are formed by bending the body, bending side walls are disposed on two sides of the body, and the bending side walls are provided with square button holes. The high precision manufacturing method of the mold housing includes the following steps: (1) punching a location hole; (2) forming a clamping angle in sharp corner shape according to an intersection cutting mode; (3) punching the square button holes; 4) performing burring engineering, wherein the step (2) includes: a) firstly cutting straight line incisions in synchronization mode, and b) then cutting arc line incisions. According to the mold housing and the high precision manufacturing method thereof, the insertion feet of a finished product are enabled to form sharp corners and then form fastening clamp positions after a molding piece is inserted into the finished product by improving a stamping die and then using the improved stamping die with added step-by-step intersection cutting stamping technology in matching mode. Simultaneously, the burring engineering is added, and therefore assembly quality is optimized, and the product accuracy grade is upgraded.
Description
Technical field
The invention belongs to electronic component processing technique field, relate to the product of a kind of mold shell and its production method, particularly a kind of mold shell and method for high-precision manufacturing thereof.
Background technology
Along with Chinese society economy and scientific and technological fast development, the also more and more technicalization of the technology of electronic product aspect, first evolve, people are more prone to multi-functional, demand direction is easily concentrated and carried to performance.The body development trend of electronic product is more and more less thus, more and more precise treatment and integrated.Therefore its inner each important electronic component is also towards thin, little, light, requires high-precision future development simultaneously.
Industrially in the manufacturing technology of this series products of production mold shell, there are two technological difficulties at present: be at first, when producing this series products, on product, need to insert the rear insertion pin that forms clamping of assembling with plastic molding piece, engineering design is originally for to cut out product shape by the one group of edge of a knife one step, the insertion pin summit of gained is R angle, i.e. fillet thus.This R angle cannot effectively clamp plastic molding piece, and its to insert width tolerance of pin be +/-0.02mm, therefore accurate not.Second point is, has two square holes on product side, its effect be after plastic molding piece is inserted on it raised points at corresponding position can be fastened by square hole.But the burr producing when the punching production because of product, with plastic molding piece assembling process in easily scrape plastic filament and cause completed knocked down products bad, require in addition this square hole edge of a knife dimensional tolerance to only have +/-0.01mm, because of the generation of burr, therefore this tolerance grade requires to be difficult for management and control, also unfavorable a large amount of production on producing.
Summary of the invention
The object of the invention is to have the problems referred to above for existing technology, proposed a kind of in mold shell product production routine, by improving diel and setting up the Sheet Metal Forming Technology effect of matching, make finished product form wedge angle to fix plastic molding piece, optimize mold shell and the method for high-precision manufacturing thereof of precision and smoothness simultaneously.
Object of the present invention can realize by following technical proposal: the method for high-precision manufacturing of mold shell, comprises following production stage:
(1), material strip enters after mould, punching press locating hole;
(2), in meet mode, carry out substep cutting, the Ka Jiao of formation insertion pin and tip-angled shape thereof:
A, first synchronous cutting are inserted the linear incision of foot bottom;
B, the camber line otch of pin top external form profile is inserted in cutting again;
C, in conjunction with above-mentioned two step otch, the intersection point of linear incision and camber line otch is the Ka Jiao of tip-angled shape;
(3), the square button hole of stamping products side;
(4), square shaped button hole inner rim along and square button hole under product edge, synchronously carry out burr removing engineering.
The method for high-precision manufacturing of this mold shell, in first step, subsequent handling immediately penetrates locating hole by pilot pin, forms the precisely really position guarantee of follow-up feeding program and every procedure.In second step, the meet angle of carrying out meet formation take substep must be as wedge angle, and then avoids occurring R angle by explained hereafter, to guarantee the plastic molding piece that clamping inserts.And in meet order, especially note first carrying out the cutting of linear incision, then carry out the cutting of camber line otch, the burr direction producing after meet is upright state, can not have influence on thus the width dimensions precision of product; If reverse sequence cutting, the burr direction producing after meet is transverse state, and then causes the width measure size of product bigger than normal, even out-of-size claimed range, and then affect Product Precision.In third step, product two sides all have square button hole, and this direction button hole is for fastening the plastic film part of insertion.In the 4th step, the square button hole of punching press can produce burr, by burr removing engineering, just can guarantee that its allowance control is in +/-0.01mm.Square shaped button hole and under product edge all carry out burr removing engineering, except guaranteeing its dimensional accuracy, in the time of also can avoiding assembling product to buckle into plastic molding piece, scrape plastic filament and cause assembling part bad.
In the method for high-precision manufacturing of above-mentioned mold shell, after punching press locating hole step, the pilot pin being positioned on stripper plate immediately penetrates locating hole.
In the method for high-precision manufacturing of above-mentioned mold shell, in meet mode cutting step, linear incision is divided into two the symmetrical square edges of a knife in left and right.Could form thus the symmetrical structure of inserting pin.
In the method for high-precision manufacturing of above-mentioned mold shell, in first step, material strip support supports on son in punching, by pressing down pierce punch, at the place, location of material strip, goes out locating hole.
In the method for high-precision manufacturing of above-mentioned mold shell, in second step first material strip support in straight line lead position enter on son, by pressing down straight cuts drift, on material strip, go out linear incision; Then material strip support is led position in camber line to enter son upper, by pressing down camber line cutting punch, goes out camber line otch on material strip.
In the method for high-precision manufacturing of above-mentioned mold shell, in third step material strip support in shearing lead position enter on son, by pressing down cutting punch, on material strip, go out square button hole.
In the method for high-precision manufacturing of above-mentioned mold shell, in the 4th step, material strip support is led position in burr removing and is entered on son, by press down burr removing drift remove square button hole and under the burr at product edge.
A kind of mold shell, comprises body in the form of sheets, bends out some insertion pin on described body, and the both sides of described body have bending sidewall, on described bending sidewall, offer square button hole.
Some insertion pin on this mold shell are all 90 ° of vertical setting up with body, and the desired location of some insertion pin according to mold insert after anchor point and determine.The bending sidewall that is positioned at both sides is 90 ° of vertical setting up with body.
In above-mentioned mold shell, described insertion pin is symmetrical structure, and the both sides of insertion pin have the Ka Jiao that top is tip-angled shape.
In above-mentioned mold shell, described body is stainless steel lamellar body.
Compared with prior art, this mold shell and method for high-precision manufacturing thereof, by improving diel, with the meet Sheet Metal Forming Technology effect of matching of setting up substep, make the insertion pin of finished product form wedge angle, and then form fastening screens after plastic molding piece insert; Increase burr removing engineering simultaneously, scrape plastic filament and cause assembling part bad when avoiding assembling product to buckle into plastic molding piece, and then optimizing product smooth surface quality; The also precision grade of Synchronous lifting product.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of this mold shell.
Fig. 2 is the side-looking structural representation of this mold shell.
Fig. 3 is the schematic diagram of meet engineering in this mold shell method for high-precision manufacturing.
In figure, 1, body; 2, insert pin; 3, Ka Jiao; 4, bending sidewall; 5, square button hole; 6, linear incision; 7, camber line otch.
The specific embodiment
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As illustrated in fig. 1 and 2, this mold shell comprises body 1 in the form of sheets, and this body 1 is stainless steel lamellar body.
On body 1, bend out some insertion pin 2, some insertion pin 2 are all 90 ° of vertical setting up with body 1, and the desired location of some insertion pin 2 according to mold insert after anchor point and determine.Insert pin 2 and be specifically symmetrical structure, and the both sides of insertion pin 2 have the card angle 3 that top is tip-angled shape.
The both sides of body 1 have bending sidewall 4, on bending sidewall 4, offer square button hole 5.The bending sidewall 4 that is positioned at both sides is 90 ° of vertical setting up with body 1.
The method for high-precision manufacturing of mold shell comprises following production stage:
(1), material strip enters after mould, punching press locating hole;
In first step, material strip support supports on son in punching, by pressing down pierce punch, at the place, location of material strip, goes out locating hole.
In first step, after punching press locating hole step, the pilot pin being positioned on stripper plate immediately penetrates locating hole, forms the precisely really position guarantee of follow-up feeding program and every procedure.
(2), in meet mode, carry out substep cutting, the card angle 3 of formation insertion pin 2 and tip-angled shape thereof:
A, first synchronous cutting are inserted the linear incision 6 of pin 2 bottoms;
B, the camber line otch 7 of pin 2 top external form profiles is inserted in cutting again;
C, in conjunction with above-mentioned two step otch, linear incision 6 and the intersection point of camber line otch 7 are the card angle 3 of tip-angled shape;
In second step first material strip support in straight line lead position enter on son, by pressing down straight cuts drift, on material strip, go out linear incision 6; Then material strip support is led position in camber line to enter son upper, by pressing down camber line cutting punch, goes out camber line otch 7 on material strip.In meet mode cutting step, linear incision 6 is divided into two the symmetrical square edges of a knife in left and right.Could form thus the symmetrical structure of inserting pin 2.
In second step, the meet angle of carrying out meet formation take substep must be as wedge angle, and then avoids occurring R angle by explained hereafter, to guarantee the plastic molding piece that clamping inserts.And in meet order, especially note first carrying out the cutting of linear incision 6, then carry out the cutting of camber line otch 7, the burr direction producing after meet is upright state, can not have influence on thus the width dimensions precision of product; If reverse sequence cutting, the burr direction producing after meet is transverse state, and then causes the width measure size of product bigger than normal, even out-of-size claimed range, and then affect Product Precision.
(3), the square button hole 5 of stamping products side;
In third step material strip support in shearing lead position enter on son, by pressing down cutting punch, on material strip, go out square button hole 5.
In third step, product two sides all have square button hole 5, and this direction button hole is for fastening the plastic film part of insertion.
(4), square shaped button hole 5 inner rims along and square button hole 5 under product edge, synchronously carry out burr removing engineering.
In the 4th step, material strip support is led position in burr removing and is entered on son, by press down burr removing drift remove square button hole 5 and under the burr at product edge.
In the 4th step, the square button hole 5 of punching press can produce burr, by burr removing engineering, just can guarantee that its allowance control is in +/-0.01mm.Square shaped button hole 5 and under product edge all carry out burr removing engineering, except guaranteeing its dimensional accuracy, in the time of also can avoiding assembling product to buckle into plastic molding piece, scrape plastic filament and cause assembling part bad.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used body 1 herein; Insert pin 2; Card angle 3; Bending sidewall 4; Square button hole 5; Linear incision 6; Camber line otch 7 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (10)
1. the method for high-precision manufacturing of mold shell, is characterized in that, comprises following production stage:
(1), material strip enters after mould, punching press locating hole;
(2), in meet mode, carry out substep cutting, the Ka Jiao of formation insertion pin and tip-angled shape thereof:
A, first synchronous cutting are inserted the linear incision of foot bottom;
B, the camber line otch of pin top external form profile is inserted in cutting again;
C, in conjunction with above-mentioned two step otch, the intersection point of linear incision and camber line otch is the Ka Jiao of tip-angled shape;
(3), the square button hole of stamping products side;
(4), square shaped button hole inner rim along and square button hole under product edge, synchronously carry out burr removing engineering.
2. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, after punching press locating hole step, the pilot pin being positioned on stripper plate immediately penetrates locating hole.
3. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, in meet mode cutting step, linear incision is divided into two the symmetrical square edges of a knife in left and right.
4. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, in first step, material strip support supports on son in punching, by pressing down pierce punch, at the place, location of material strip, goes out locating hole.
5. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, in second step first material strip support in straight line lead position enter on son, by pressing down straight cuts drift, on material strip, go out linear incision; Then material strip support is led position in camber line to enter son upper, by pressing down camber line cutting punch, goes out camber line otch on material strip.
6. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, in third step material strip support in shearing lead position enter on son, by pressing down cutting punch, on material strip, go out square button hole.
7. the method for high-precision manufacturing of mold shell according to claim 1, is characterized in that, in the 4th step, material strip support is led position in burr removing and entered on son, by press down burr removing drift remove square button hole and under the burr at product edge.
8. the mold shell that method for high-precision manufacturing manufactures according to claim 1, it is characterized in that, comprise body in the form of sheets, on described body, bend out some insertion pin, the both sides of described body have bending sidewall, on described bending sidewall, offer square button hole.
9. mold shell according to claim 8, is characterized in that, described insertion pin is symmetrical structure, and the both sides of insertion pin have the Ka Jiao that top is tip-angled shape.
10. mold shell according to claim 8, is characterized in that, described body is stainless steel lamellar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410009290.6A CN103736812B (en) | 2014-01-09 | 2014-01-09 | Mold shell and method for high-precision manufacturing thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009290.6A CN103736812B (en) | 2014-01-09 | 2014-01-09 | Mold shell and method for high-precision manufacturing thereof |
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| CN103736812A true CN103736812A (en) | 2014-04-23 |
| CN103736812B CN103736812B (en) | 2015-09-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05144988A (en) * | 1991-11-20 | 1993-06-11 | Fujitsu Miyagi Electron:Kk | Production of semiconductor device, semiconductor producing equipment and lead frame |
| JPH07297336A (en) * | 1994-04-21 | 1995-11-10 | Hitachi Cable Ltd | Manufacture of lead frame |
| JP2008105069A (en) * | 2006-10-27 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Progressive die and punching method |
| CN101954424A (en) * | 2010-06-17 | 2011-01-26 | 无锡曙光模具有限公司 | Processing method of refrigerator temperature controller spring and special die for processing |
| CN201860023U (en) * | 2010-06-16 | 2011-06-08 | 无锡曙光模具有限公司 | Pin processing special die for sockets |
-
2014
- 2014-01-09 CN CN201410009290.6A patent/CN103736812B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05144988A (en) * | 1991-11-20 | 1993-06-11 | Fujitsu Miyagi Electron:Kk | Production of semiconductor device, semiconductor producing equipment and lead frame |
| JPH07297336A (en) * | 1994-04-21 | 1995-11-10 | Hitachi Cable Ltd | Manufacture of lead frame |
| JP2008105069A (en) * | 2006-10-27 | 2008-05-08 | Matsushita Electric Ind Co Ltd | Progressive die and punching method |
| CN201860023U (en) * | 2010-06-16 | 2011-06-08 | 无锡曙光模具有限公司 | Pin processing special die for sockets |
| CN101954424A (en) * | 2010-06-17 | 2011-01-26 | 无锡曙光模具有限公司 | Processing method of refrigerator temperature controller spring and special die for processing |
Non-Patent Citations (1)
| Title |
|---|
| 郑发金等: "形状近似的多件引线插脚级进模具设计", 《福建工程学院学报》, vol. 6, no. 6, 31 December 2008 (2008-12-31), pages 657 - 659 * |
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| CN103736812B (en) | 2015-09-16 |
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