CN103316998B - Exceeding-type shearing die structure - Google Patents
Exceeding-type shearing die structure Download PDFInfo
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- CN103316998B CN103316998B CN201310272388.6A CN201310272388A CN103316998B CN 103316998 B CN103316998 B CN 103316998B CN 201310272388 A CN201310272388 A CN 201310272388A CN 103316998 B CN103316998 B CN 103316998B
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- trimming
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Abstract
The invention relates to an exceeding-type shearing die structure which comprises an upper shearing die sleeve and a lower alloy die. A shearing die is arranged inside the upper shearing die sleeve, and a hole is formed at the center of the shearing die. An alloy insert is embedded in the end portion of the lower alloy die. A material returning bar is arranged in the middles of the lower alloy die and the alloy insert. A shearing boss is formed at the head of the alloy insert. The outer diameter of the shearing boss is smaller than the diameter of the internal hole of the shearing die. Through the structure, edges can be cut off by one step during shearing, and tearing caused by pulling is avoided, so that products are prevented from being pulled and bent, cuts are burr-free, product qualification rate is increased, product quality is improved, and product cost is reduced.
Description
Technical field
The present invention relates to a kind of mould structure in five metals manufacturing, especially relate to a kind of override type shaving die structure.
Background technology
At present, in five metals manufacturing, difference needs the shape of the head of screw to be also of all kinds according to demand, with regard to needing, trimming processing is carried out to the head of semi-finished product screw like this, traditional trimming shape technique edger 2 and alloy counterdie 6 die orifice end face maintain the spacing of about 0.5mm as shown in Figure 1, edger 2 die orifice does not allow to encounter on alloy counterdie 6, easily edger 2 is damaged as collided, and the part of spacing is torn when realizing the material returned by material returned rod 7 and is exited realization and cut haircut type, but it is partially thin for head dummy, capitiform thickness only has 1.5mm, capitiform broadside reaches 20mm, thickness reaches more than 13 times with length ratio, use above explained hereafter, cut rear product 5 head and break power meeting stretch bending head needed for spacing owing to tearing, particularly long limit, bend and can reach more than 1.5mm.Can not reach drawing requirement, only have and increase operation smoothing, increase cost like this, product quality is unsecured again, and the ratio of scrapping reaches about 15% at all.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of structure simple operations override type shaving die structure easily, and not needing during use increases operation, can reduce product cost, and can ensure the quality of product.
The present invention solves the technical scheme that its technical problem takes: a kind of override type shaving die structure, comprise trimming Upper Die-sleeve and alloy counterdie, described trimming Upper Die-sleeve inside is provided with the porose edger of center band, described alloy counterdie end is embedded with alloy insert, material returned rod is provided with in the centre position of alloy counterdie and alloy insert, described alloy insert head is provided with trimming boss, and the external diameter of trimming boss is less than the diameter of edger internal holes.
Concrete further, the gap between described trimming boss and edger is 0.05 ~ 0.08mm.
Concrete further, the height of described trimming boss is 10mm.
Concrete further, described trimming boss and edger endoporus are rectangle.
The invention has the beneficial effects as follows: after adopting said structure, can cut away disposable for limit when cutting, there will not be to pull and tear phenomenon, so product can not be pullled bending, otch impulse-free robustness, improves the qualification rate of product and the quality of product, reduces the cost of product.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the structural representation of alloy insert of the present invention.
In figure: 1, trimming Upper Die-sleeve; 2, edger; 3, screw; 4, chip; 5, product; 6, alloy counterdie; 7, material returned rod; 8, alloy insert; 9, trimming boss.
Detailed description of the invention
A kind of override type shaving die structure as shown in Figure 2, comprise trimming Upper Die-sleeve 1 and alloy counterdie 6, the porose edger 2 of screw 3 fixed center band is passed through in described trimming Upper Die-sleeve 1 inside, described alloy counterdie 6 end is embedded with alloy insert 8, material returned rod 7 is provided with in the centre position of alloy counterdie 6 and alloy insert 8, shown described alloy insert 8 head is provided with sharp trimming boss 9, and the external diameter of trimming boss 9 is less than the diameter of edger 2 internal holes.
Use override type trimming structure as shown in Figure 3, the square size design of alloy counterdie 6 head length is less by 0.12 ~ 0.15 than product capitiform size, high 10mm (reserves 1 ~ 3 millimeter that surmounts, also having the thickness of 2 ~ 3 products, also have some gaps) trimming boss 9 is 0.05 ~ 0.08mm with the gap of edger 2.1 ~ 3mm on the trimming boss 9 allowing edger 2 nib surmount to be inserted in alloy counterdie 6, product 5 head is cut entirely cut, produce to tear again and break when fundamentally there is not the material returned, just product 5 is released edger 2 completes production to material returned rod 7, product is smooth and perpendicular to bar portion, otch impulse-free robustness.
When work, trimming Upper Die-sleeve 1 does mould assembling action with edger 2 and alloy counterdie 6, product 5 is placed in alloy insert 8 interstitial hole, edger 2 is combined product 5 cutting rectangularity with trimming boss 9, and chip 4 is pushed on trimming boss 9 neck, by material returned rod 7, product 5 is ejected afterwards, namely complete whole operating process.
It is emphasized that: be only preferred embodiment of the present invention above, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (4)
1. an override type shaving die structure, comprise trimming Upper Die-sleeve (1) and alloy counterdie (6), described trimming Upper Die-sleeve (1) inside is provided with the porose edger of center band (2), described alloy counterdie (6) end is embedded with alloy insert (8), material returned rod (7) is provided with in the centre position of alloy counterdie (6) and alloy insert (8), it is characterized in that: described alloy insert (8) head is provided with trimming boss (9), the external diameter of trimming boss (9) is less than the diameter of edger (2) internal holes.
2. override type shaving die structure according to claim 1, is characterized in that: the gap between described trimming boss (9) and edger (2) is 0.05 ~ 0.08mm.
3. override type shaving die structure according to claim 1, is characterized in that: the height of described trimming boss (9) is 10mm.
4. override type shaving die structure according to claim 1, is characterized in that: described trimming boss (9) and edger (2) endoporus are rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272388.6A CN103316998B (en) | 2013-07-01 | 2013-07-01 | Exceeding-type shearing die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310272388.6A CN103316998B (en) | 2013-07-01 | 2013-07-01 | Exceeding-type shearing die structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103316998A CN103316998A (en) | 2013-09-25 |
| CN103316998B true CN103316998B (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310272388.6A Active CN103316998B (en) | 2013-07-01 | 2013-07-01 | Exceeding-type shearing die structure |
Country Status (1)
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| CN (1) | CN103316998B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494053A (en) * | 2014-12-03 | 2015-04-08 | 柳州通为机械有限公司 | Surpassing type trimming mold structure |
| CN112676434A (en) * | 2021-01-26 | 2021-04-20 | 东风汽车紧固件有限公司 | Burr mould is cut to bolt no burr |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724871B2 (en) * | 1988-03-31 | 1995-03-22 | 松下電器産業株式会社 | Heat exchanger fin color forming method and mold |
| JP3127732B2 (en) * | 1994-10-18 | 2001-01-29 | トヨタ自動車株式会社 | Trimming method and apparatus |
| CN201618781U (en) * | 2009-12-14 | 2010-11-03 | 江西江铃底盘股份有限公司 | Finishing and trimming die |
| CN201823814U (en) * | 2010-09-10 | 2011-05-11 | 浙江七丰五金标准件有限公司 | Rail spike edge-cutting device |
| CN202105898U (en) * | 2011-05-04 | 2012-01-11 | 亿和精密金属制品(深圳)有限公司 | Progressive die scrapbridge blanking structure without burr |
| CN102814386B (en) * | 2012-09-06 | 2015-08-12 | 苏州工业园区新凯精密五金有限公司 | One inlays combined dies structure |
| CN203330223U (en) * | 2013-07-01 | 2013-12-11 | 苏州工业园区新凯精密五金有限公司 | Overrunning type trimming die structure |
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2013
- 2013-07-01 CN CN201310272388.6A patent/CN103316998B/en active Active
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| Publication number | Publication date |
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| CN103316998A (en) | 2013-09-25 |
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Address after: No. 36, Jiasheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu 215126 Patentee after: Suzhou Xinkai fastening system Co.,Ltd. Address before: No. 36, Jiasheng Road, Shengpu Town, Suzhou Industrial Park, Jiangsu 215126 Patentee before: SUZHOU INDUSTRIAL PARK XINKAI PRECISION FASTENER Co.,Ltd. |
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