CN104084474A - Cold stamping trimming die - Google Patents

Cold stamping trimming die Download PDF

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Publication number
CN104084474A
CN104084474A CN201410275872.9A CN201410275872A CN104084474A CN 104084474 A CN104084474 A CN 104084474A CN 201410275872 A CN201410275872 A CN 201410275872A CN 104084474 A CN104084474 A CN 104084474A
Authority
CN
China
Prior art keywords
waste
patrix
cutting edge
knife
trimming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410275872.9A
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Chinese (zh)
Inventor
潘建新
申林
葛勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Honda Automobile Co Ltd
Original Assignee
Dongfeng Honda Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Honda Automobile Co Ltd filed Critical Dongfeng Honda Automobile Co Ltd
Priority to CN201410275872.9A priority Critical patent/CN104084474A/en
Publication of CN104084474A publication Critical patent/CN104084474A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a cold stamping trimming die, and belongs to the technical field of cold stamping machining of dies in the automobile industry. The cold stamping trimming die comprises an upper die cutter block, a male die cutter block and a lower die waste cutter block, wherein the lower die waste cutter block is arranged on the part, lower than the male die cutter block, of the side edge of the male die cutter block; the upper die cutter block is arranged above the lower die waste cutter block; an upper die trimming cutting edge and an upper die waste cutting edge are arranged on the upper die cutter block, and are not positioned on the same straight line; the upper die trimming cutting edge and the upper die waste cutting edge are provided with an inclined trimming blade raised from the upper die trimming cutting edge and an inclined waste blade raised from the upper die waste cutting edge at a joint respectively; the inclined trimming blade and the inclined waste blade form a tapered point raised from the upper die trimming cutting edge and the upper die waste cutting edge. According to the cold stamping trimming die, the problem of cutting powder produced by secondary shearing in the prior art is solved, part surface quality problems caused by the cutting powder are solved, and the production efficiency of an automatic line is further improved.

Description

A kind of cold stamping Trimming Die
Technical field
The invention belongs to the technical field of automobile industry mold cold punch process, be specifically related to a kind of cold stamping Trimming Die.
Background technology
Existing punching press Trimming Die mainly comprises patrix cutter piece, punch cutter piece, holding pad and counterdie waste knife piece.As shown in Figure 1 and Figure 2, existing patrix cutter lump waste materials edge direction and trimming edge 90 ° of angles in horizontal direction, the cutting edge on angle both sides and pressing direction angle are 90 °, form two 90 ° of points of a knife.As shown in Figure 3, counterdie waste knife piece cutting edge height is lower than punch cutter piece cutting edge height 5mm, and counterdie waste knife piece installation site is that point of a knife and punch cutter piece gapless are installed.
Due to the unreasonable structure of existing punching press Trimming Die, cause patrix cutter piece, in shear history, there is the phenomenon of secondary shearing in counterdie waste knife piece, cut powder phenomenon thereby produce, cut powder and can be brought into mould inside with the motion of patrix cutter piece, cause the quality problem such as weighing wounded appears in accessory appearance surface, projection.On the automatic production line of automation high concentration, in order to clear up iron filings, tend to cause the shutdown of whole production line, have a strong impact on rhythm of production, bring great obstruction to the lifting of production capacity.
Summary of the invention
Object of the present invention is exactly the defect for prior art, and a kind of cold stamping Trimming Die is provided, and eliminates existing punching press Trimming Die secondary shearing and produces and cut the piece surface quality problem that powder causes and the usefulness that improves production line.
The technical solution used in the present invention is: comprise patrix cutter piece, punch cutter piece and counterdie waste knife piece, described counterdie waste knife piece is arranged on described punch cutter piece side lower than punch cutter piece place, described patrix cutter piece is arranged on described counterdie waste knife piece top, described patrix cutter piece is provided with not the patrix trimming edge on same straight line and patrix waste material cutting edge, described patrix trimming edge and patrix waste material cutting edge have respectively the oblique sword of deburring that protrudes from patrix trimming edge and the oblique sword of waste material that protrudes from patrix waste material cutting edge in junction, the oblique sword of the oblique sword of described deburring and waste material forms the taper point of a knife that protrudes from patrix trimming edge and patrix waste material cutting edge.
Further preferred structure, the oblique sword of deburring of described taper point of a knife and the angle of pressing direction are β, the span of described β is 65 °-75 °.
Further preferred structure, the value of described β is 70 °.
Further preferred structure, the oblique sword of waste material of described taper point of a knife and the angle of pressing direction are α, the span of described α is 65 °-75 °.
Further preferred structure, the value of described α is 70 °.
In such scheme, the angle β of the oblique sword of the deburring of point of a knife and pressing direction is 70 °, has both ensured the intensity of point of a knife, has reduced again the oblique shearing force of cutting edge, guarantees that point of a knife sheet material does not occur in the time piercing through sheet material and tears; The oblique sword of waste material of described point of a knife and the angle α of pressing direction are 70 °, and point of a knife is made up of jointly α angle and β angle, make point of a knife form two 70 ° of forms, and in the time that patrix cutter piece moves downward, first point of a knife pierces through sheet material, form an otch in advance uniformly.
Further preferred structure, is provided with gap a between described counterdie waste knife piece and punch cutter piece in the horizontal direction.
In such scheme, the otch in advance producing while effectively avoiding patrix cutter piece spine threading material, has eliminated traditional waste knife and has sheared the secondary shearing producing in part process.
Further preferred structure, the span of described gap a is 3mm-6mm.
Further preferred structure, the value of described gap a is 5mm.
Further preferred structure, the oblique sword of waste material of described taper point of a knife in the horizontal direction be projected as b, the span of described b is 3mm-6mm.
Further preferred structure, the value of described b is 5mm.
The invention solves in prior art and to cut powder because of what secondary shearing produced.Not only eliminate and cut the piece surface quality problem that powder causes, more improved the production efficiency of transfer matic.The present invention is simple in structure, stable performance, and improvement cost is low, safeguards simply, and can effectively reduce production cycle and the manufacturing cost of mould.
Brief description of the drawings
Fig. 1 is patrix cutter piece and counterdie waste knife piece relative position schematic diagram figure in prior art;
Fig. 2 is patrix cutter block structure schematic diagram in prior art;
Fig. 3 is counterdie waste knife piece and punch cutter piece installation site schematic diagram in prior art;
Fig. 4 is patrix cutter piece of the present invention and counterdie waste knife piece relative position schematic diagram;
Fig. 5 is patrix cutter block structure schematic diagram of the present invention;
Fig. 6 is counterdie waste knife piece of the present invention and punch cutter piece installation site schematic diagram;
Fig. 7 is working state schematic representation before punching press of the present invention;
Fig. 8 is working state schematic representation after punching press of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, be convenient to be well understood to the present invention, but they do not form restriction to the present invention.
As shown in Fig. 4-Fig. 6, the present invention includes patrix cutter piece 1, punch cutter piece 2 and counterdie waste knife piece 3, described counterdie waste knife piece 3 is arranged on punch cutter piece 2 sides lower than punch cutter piece 2 places, described patrix cutter piece 1 is arranged on counterdie waste knife piece 3 tops, described patrix cutter piece 1 is provided with not the patrix trimming edge 1.1 on same straight line and patrix waste material cutting edge 1.2, described patrix trimming edge 1.1 has respectively the oblique sword 1.11 of deburring that protrudes from patrix trimming edge 1.1 and the oblique sword 1.21 of waste material that protrudes from patrix waste material cutting edge 1.2 with patrix waste material cutting edge 1.2 in junction, the oblique sword 1.11 of described deburring forms with the oblique sword 1.21 of waste material the taper point of a knife that protrudes from patrix trimming edge 1.1 and patrix waste material cutting edge 1.2, the oblique sword 1.11 of deburring of described taper point of a knife is 70 ° with the angle β of pressing direction (in Fig. 5, direction shown in arrow is pressing direction), the oblique sword 1.21 of waste material of described taper point of a knife is 70 ° with the angle α of pressing direction.Two 70 ° of taper points of a knife that the point of a knife of patrix cutter piece is become by the oblique blade shape of two 70 °, guarantee the intensity of point of a knife and the oblique shearing force of the minimizing point of a knife incision sheet material 4 of trying one's best, and that avoids that sheet material occurs tears.As shown in Figure 4, the oblique sword of waste material projection b is in the horizontal direction 5mm, is for ensureing that the breach in advance forming after point of a knife incision sheet material is 5mm.
As shown in Figure 6, in such scheme, between described counterdie waste knife piece 3 and punch cutter piece 2, be provided with in the horizontal direction gap a, the value of a is 5mm.The installation site of counterdie waste knife piece and punch cutter piece is changed into empty avoiding punch cutter piece cutting edge 5mm by the gapless installation of existing counterdie waste knife piece and punch cutter piece cutting edge and is installed; Empty avoiding 5mm cuts off the functional of waste material in order both to reach just herein, and the empty part of opening of guarantee is avoided the otch that part produces in advance again, eliminates secondary cutting.
As shown in Figure 7, when punching press, when patrix cutter piece is in the time moving downward, first taper point of a knife pierces through sheet material, form otch in advance, the taper point of a knife of two 70 ° not only makes point of a knife intensity be guaranteed, and oblique shearing force while having reduced point of a knife incision, sheet material is torn state variation for piercing through and produce oblique shearing sheet material during by existing 90 ° of points of a knife incision, has eliminated deburring direction sheet material and has torn phenomenon.
As shown in Figure 8, along with patrix cutter piece moves downward in figure when position, both before counterdie waste knife piece generation shearing time, sheet material has produced an otch in advance, because patrix cutter lump waste materials direction point of a knife is designed to 70 ° of oblique angles, and the oblique sword length of waste material b is 5mm, Gu now in advance the length of otch be 5mm.
When patrix cutter piece continues operation downwards, patrix cutter piece and counterdie waste knife piece are sheared, because sheet material has now formed 5mm otch in advance in waste material direction, and existing counterdie waste knife piece mounting structure is to install with punch cutter piece trimming line gapless, now otch will be sheared again in advance, produces and cuts powder.And counterdie waste knife piece empty avoiding punch cutter piece trimming line 5mm of the present invention installs, avoid cleverly the otch in advance of this 5mm, eliminate secondary shearing, effectively solve the powder problem of cutting that secondary shearing causes.
The content that this description is not described in detail belongs to the known prior art of professional and technical personnel in the field.

Claims (10)

1. a cold stamping Trimming Die, comprise patrix cutter piece, punch cutter piece and counterdie waste knife piece, described counterdie waste knife piece is arranged on described punch cutter piece side lower than punch cutter piece place, described patrix cutter piece is arranged on described counterdie waste knife piece top, described patrix cutter piece is provided with not the patrix trimming edge on same straight line and patrix waste material cutting edge, it is characterized in that: described patrix trimming edge and patrix waste material cutting edge have respectively the oblique sword of deburring that protrudes from patrix trimming edge and the oblique sword of waste material that protrudes from patrix waste material cutting edge in junction, the oblique sword of the oblique sword of described deburring and waste material forms the taper point of a knife that protrudes from patrix trimming edge and patrix waste material cutting edge.
2. a kind of cold stamping Trimming Die according to claim 1, is characterized in that: the oblique sword of deburring of described taper point of a knife and the angle of pressing direction are β, and the span of described β is 65 °-75 °.
3. a kind of cold stamping Trimming Die according to claim 2, is characterized in that: the value of described β is 70 °.
4. a kind of cold stamping Trimming Die according to claim 1, is characterized in that: the oblique sword of waste material of described taper point of a knife and the angle of pressing direction are α, and the span of described α is 65 °-75 °.
5. a kind of cold stamping Trimming Die according to claim 4, is characterized in that: the value of described α is 70 °.
6. a kind of cold stamping Trimming Die according to claim 1, is characterized in that: between described counterdie waste knife piece and punch cutter piece, be provided with in the horizontal direction gap a.
7. a kind of cold stamping Trimming Die according to claim 6, is characterized in that: the span of described gap a is 3mm-6mm.
8. a kind of cold stamping Trimming Die according to claim 7, is characterized in that: the value of described gap a is 5mm.
9. a kind of cold stamping Trimming Die according to claim 1, is characterized in that: the oblique sword of waste material of described taper point of a knife in the horizontal direction be projected as b, the span of described b is 3mm-6mm.
10. a kind of cold stamping Trimming Die according to claim 9, is characterized in that: the value of described b is 5mm.
CN201410275872.9A 2014-06-19 2014-06-19 Cold stamping trimming die Pending CN104084474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410275872.9A CN104084474A (en) 2014-06-19 2014-06-19 Cold stamping trimming die

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Application Number Priority Date Filing Date Title
CN201410275872.9A CN104084474A (en) 2014-06-19 2014-06-19 Cold stamping trimming die

Publications (1)

Publication Number Publication Date
CN104084474A true CN104084474A (en) 2014-10-08

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109834154A (en) * 2019-03-14 2019-06-04 武汉宝钢华中贸易有限公司 A kind of blanking die waste knife assembly
CN110666028A (en) * 2019-08-22 2020-01-10 南京乔丰汽车工装技术开发有限公司 Noise-reducing and shock-absorbing knife block for trimming die of automobile covering part
CN111451358A (en) * 2019-11-26 2020-07-28 柳州宝钢汽车零部件有限公司 Novel blanking die waste material cutting off cutter structure
CN112317595A (en) * 2020-09-30 2021-02-05 中国第一汽车股份有限公司 Stamping and trimming process for preventing waste cuttings from being generated

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07256355A (en) * 1994-03-23 1995-10-09 Honda Motor Co Ltd Scrap cutter device
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CN202683729U (en) * 2012-05-31 2013-01-23 浙江吉利汽车研究院有限公司杭州分公司 Trimming die
CN202934002U (en) * 2012-10-19 2013-05-15 宁波远景汽车零部件有限公司 Waste separation device
CN103521598A (en) * 2012-07-05 2014-01-22 北汽福田汽车股份有限公司 Trimming scrap cutter and trimming mold
CN203955840U (en) * 2014-06-19 2014-11-26 东风本田汽车有限公司 A kind of cold stamping Trimming Die

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07256355A (en) * 1994-03-23 1995-10-09 Honda Motor Co Ltd Scrap cutter device
CN201768800U (en) * 2010-08-10 2011-03-23 浙江吉利汽车研究院有限公司 Trimming die
CN202683729U (en) * 2012-05-31 2013-01-23 浙江吉利汽车研究院有限公司杭州分公司 Trimming die
CN103521598A (en) * 2012-07-05 2014-01-22 北汽福田汽车股份有限公司 Trimming scrap cutter and trimming mold
CN202934002U (en) * 2012-10-19 2013-05-15 宁波远景汽车零部件有限公司 Waste separation device
CN203955840U (en) * 2014-06-19 2014-11-26 东风本田汽车有限公司 A kind of cold stamping Trimming Die

Non-Patent Citations (1)

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Title
夏德帅等: "冲压模修边产生铁屑问题实例解析", 《模具制造》, no. 6, 30 June 2013 (2013-06-30), pages 40 - 42 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109834154A (en) * 2019-03-14 2019-06-04 武汉宝钢华中贸易有限公司 A kind of blanking die waste knife assembly
CN110666028A (en) * 2019-08-22 2020-01-10 南京乔丰汽车工装技术开发有限公司 Noise-reducing and shock-absorbing knife block for trimming die of automobile covering part
CN111451358A (en) * 2019-11-26 2020-07-28 柳州宝钢汽车零部件有限公司 Novel blanking die waste material cutting off cutter structure
CN112317595A (en) * 2020-09-30 2021-02-05 中国第一汽车股份有限公司 Stamping and trimming process for preventing waste cuttings from being generated

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Application publication date: 20141008