CN104588490A - Cold stamping method - Google Patents
Cold stamping method Download PDFInfo
- Publication number
- CN104588490A CN104588490A CN201410842947.7A CN201410842947A CN104588490A CN 104588490 A CN104588490 A CN 104588490A CN 201410842947 A CN201410842947 A CN 201410842947A CN 104588490 A CN104588490 A CN 104588490A
- Authority
- CN
- China
- Prior art keywords
- finished product
- aperture
- blank
- sample
- difference
- 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.)
- Granted
Links
Landscapes
- Punching Or Piercing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
The invention discloses a cold stamping method, which is used for manufacturing a finished product with a diameter. A through hole is formed in the center of the finished product; an annular groove is also formed in the finished product. According to the cold stamping method, a discharging chart is designed according to the determined workblank diameter and the determined pore diameter, a workblank is manufactured by a punching and blanking compound die according to the discharging chart, the workblank is punched to form the through hole, the workblank is placed in the annular groove which is formed by punching a drawing die, the finished product can be formed, no deburring is needed, and the technical problems that a pair of deburring dies needs to be added in the prior art, so that the cost of the produced product is increased, and a place is needed for placing the pair of deburring dies are solved.
Description
Technical field
The present invention relates to punch forming technical field, particularly relate to a kind of cold stamping method.
Background technology
The general way mainly blanking die blanking of current employing, mould of extending are compressing, surplus stamping-out gets off by trimming die, and (or machined removal) this three roads conventional processes completes production.
Determine " blank area equals part area of extending " by the principle that part of extending (or drip molding) is not thinning when determining blank dimension.In fact, the area of part (or drip molding) blank of extending is not constant, it is by material property, mould structure and geometric parameter, the impact of the factors such as lubricating condition and part of extending (or drip molding) geometry, some meetings produce appreciable change (such as, when spherical parts is extended, blank area may increase 3-8%), again due to the difference of each enterprise mechanized equipment of different field, the manufacturing industry division of labor is more and more specialized, therefore in practical operation, usually need the secondary trimming die of increase by, thus cause converted products cost increase, and also need place to place this secondary trimming die.
Summary of the invention
The application provides a kind of cold stamping method, solves or part solves in prior art and needs the secondary trimming die of increase by, thus cause converted products cost increase, and also need place to place the technical problem of this secondary trimming die.
The application provides a kind of cold stamping method, and for making the finished product that has diameter, described finished product center offers through hole, and described finished product also has annular groove, and described cold stamping method comprises:
According to the blank diameter determined and the aperture design marker map determined, described blank diameter and described aperture determine according to the diameter of described finished product and the aperture of described through hole;
Punching and blanking compound die is adopted to make blank according to described marker map, and simultaneously on blank, punching is to form described through hole, the punch-die of described punching and blanking compound die, die, piercing punch Blade dimensions are determined by the described blank diameter determined and the described aperture determined;
Described blank is placed in mould upper punch swaging of extending and becomes described annular groove, to form described finished product, described in mould of extending determine according to the size of described finished product.
Preferably, before the described blank diameter design marker map according to determining, described method also comprises:
Cutting machine is adopted to cut the sample blank in a specimen finish and sample aperture;
Mould upper punch swaging of extending described in being placed in by described sample blank becomes described annular groove, to form a sample finished product;
Aperture difference between more described sample finished product and described finished product and difference in height;
When described aperture difference and described difference in height are greater than a preset value, revise described specimen finish, again make sample finished product;
When described aperture difference and described difference in height are less than or equal to described preset value, described specimen finish and described sample aperture are defined as the described blank diameter determined and the described aperture determined.
Preferably, described specimen finish equals the twice of described radius of specimen, and described radius of specimen equals the area of described finished product divided by π, then opens radical sign.
Preferably, before the described blank diameter design marker map according to determining, described method also comprises:
Adopt cutting machine to cut the different sample blank different with sample aperture of N number of specimen finish, described N be more than or equal to 2 integer;
Mould upper punch swaging of extending described in being placed in by described N number of sample blank becomes described annular groove, to form N number of sample finished product;
The aperture difference of more described N number of sample finished product respectively and between described finished product and diameter difference, be defined as the described blank diameter determined and the described aperture determined by the specimen finish of the sample blank corresponding with the aperture difference between described finished product and the minimum sample finished product of diameter difference and sample aperture.
The application's beneficial effect is as follows:
Above-mentioned cold stamping method is according to the blank diameter determined and the aperture design marker map determined, punching and blanking compound die is adopted to make blank according to described marker map, and simultaneously on blank punching to form described through hole, described blank is placed in mould upper punch swaging of extending and becomes described annular groove, described finished product can be formed, and without the need to carrying out deburring, solve or partly solve in prior art and need the secondary trimming die of increase by, thus cause converted products cost increase, and also need place to place the technical problem of this secondary trimming die.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described by the accompanying drawing used required in describing embodiment below, apparently, the accompanying drawing in the following describes is only some embodiments of the present invention.
Fig. 1 is the method flow diagram of the application one better embodiment cold stamping method;
Fig. 2 adopts cold stamping method in Fig. 1 to make the Pareto diagram of finished product;
Fig. 3 is the generalized section adopting the blank that cold stamping method makes in Fig. 1;
Fig. 4 is the top view adopting the finished product that cold stamping method makes in Fig. 1;
Fig. 5 is the generalized section of finished product in Fig. 4;
Fig. 6 is the generalized section of punching and blanking compound die;
Fig. 7 is the generalized section of the other direction of punching and blanking compound die in Fig. 6;
Fig. 8 is the top view of mould of extending;
Fig. 9 is the generalized section of mould of extending.
Detailed description of the invention
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail.
Fig. 1 is the method flow diagram of the application one better embodiment cold stamping method.Described cold stamping method is for making the finished product that has diameter.As shown in Figure 4 and Figure 5, described finished product center offers through hole, and described finished product also has annular groove.As shown in Figure 1, described cold stamping method comprises the following steps:
Step 110, according to the blank diameter determined and the aperture design marker map determined, described blank diameter and described aperture determine according to the diameter of described finished product and the aperture of described through hole.Refer to Fig. 2, the described blank diameter determined and the aperture determined by the orifice size calculation of the diameter of described finished product and described through hole out, can refer to subsequent descriptions in detail.
Step 120, adopts punching and blanking compound die to make blank according to described marker map, and simultaneously on blank punching to form described through hole, as shown in Figure 3.Please simultaneously see Fig. 6 and Fig. 7, described punching and blanking compound die comprises guide pin bushing 1, guide pillar 2, die shoe 3, cushion 4, unloading bolt 5, stripper 6, punch-die 7, holder 8, alignment pin 9, spring 10, cover plate 11, piercing punch 12, punch retainer 13, pusher screw 14, scraping wings 15, die 16, upper bolster 17, straight pin 21, screw 22, straight pin 23, screw 24, screw 25, slotted countersunk flat head screw 26.The punch-die 7 of described punching and blanking compound die, die 16, piercing punch 12 Blade dimensions are determined by the described blank diameter determined and the described aperture determined.
Step 130, is placed in mould upper punch swaging of extending and becomes described annular groove by described blank, to form described finished product, described in mould of extending determine according to the size of described finished product.
As shown in Figure 8 and Figure 9, mould of extending described in comprises unloading bolt 1, binder block 2, unloading bolt 3, cushion 4, pad 5, holder 6, upper bolster 7, die shoe 8, unloading bolt 9, cushion 10, pad 11, shaping top board 12, molding concave die 13, range line pin 14, alignment pin 15, blank holder 16, forming convax mould 17, guide pin bushing 18, guide pillar 19, screw 21, straight pin 22, screw 23, straight pin 24.
Above-mentioned cold stamping method is according to the blank diameter determined and the aperture design marker map determined, punching and blanking compound die is adopted to make blank according to described marker map, and simultaneously on blank punching to form described through hole, described blank is placed in mould upper punch swaging of extending and becomes described annular groove, described finished product can be formed, and without the need to carrying out deburring, solve or partly solve in prior art and need the secondary trimming die of increase by, thus cause converted products cost increase, and also need place to place the technical problem of this secondary trimming die.
Particularly, in step 110, before the described blank diameter design marker map according to determining, described method also comprises:
Adopt cutting machine to cut the sample blank in a specimen finish and sample aperture, particularly, described specimen finish equals the twice of described radius of specimen, and described radius of specimen equals the area of described finished product divided by π, then opens radical sign;
Mould upper punch swaging of extending described in being placed in by described sample blank becomes described annular groove, to form a sample finished product;
Aperture difference between more described sample finished product and described finished product and difference in height;
When described aperture difference and described difference in height are greater than a preset value, revise described specimen finish, again make sample finished product, described preset value can be the maximum magnitude of tolerance;
When described aperture difference and described difference in height are less than or equal to described preset value, described specimen finish and described sample aperture are defined as the described blank diameter determined and the described aperture determined.
Said method implementation is introduced below by way of specific implementation:
1, specimen finish and sample aperture is determined.
Blank area is calculated by " blank area equals part area (i.e. finished product area) of extending " according to foundary weight size, then determine blank dimension, area F=π d1h+ π (2 π r1d2+8r1r1)/4+ π (π r1d2 α/180-2r1h1)+π (π r2d3 α/180+2r2h2)+π d3d3/4 of finished product
＝3.14x103x9+3.14(2x3.14x10.5x82+8x10.5x10.5)/4+3.14(3.14x10.5x82x71.45/180-2x10.5x7.16)+3.14(3.14x11.5x40.3x71.45/180+2x11.5x7.84)+3.14x40.3x40.3/4＝14400.24
Calculate d=135.44 according to F=π rr=π dd/4, wherein d is sample blank diameter, and r is sample blank radius.
Sample aperture is set as 9.
2,4 blanks are made according to sample blank diameter d=135.44 and sample aperture 9 laser cutting machine (or wire cutting machine) blanking.
3, mould die trial swaging of extending is adopted to make 4 sample finished products (part of extending).Described mould of extending determines according to the size of described finished product.
4, measure sample finished product (part of extending) each size by cubing, the height dimension actual measurement of sample finished product is 7.1mm, and the height 3mm size of finished product, therefore, produce 4.1mm increment of altitude, difference in height is 4.1mm; The aperture of actual measurement sample finished product is 12.4mm, aperture difference 0.6mm.
5, setting described preset value is 0.3mm, therefore, aperture difference and difference in height are greater than described setting value, therefore, according to 4.1mm difference in height and 0.6mm aperture difference correction specimen finish and sample aperture, according to revised size laser cutting machine again blanking make 4 blanks, and then die trial, until be less than or equal to described preset value at described aperture difference and described difference in height, the blank diameter finally determined is d=φ 129.1, and aperture is d=φ 9.5.
6, determine to press punch-die, die, piercing punch Blade dimensions and stripper in punching and blanking compound die and scraping wings relative dimensions according to diameter d=129.1mm and aperture d=9.5mm and revise its marker map, complete punching and blanking compound die, for subsequent use.
8, to extend mould according to finished figure design, the pointing device design of locating blank in mould become adjustable can (title adjustable positioning device), manufacture mould of extending, for subsequent use.
9, adopt punching and blanking compound die to make the blank of diameter d=129.1mm according to described marker map, and simultaneously on blank punching to form the through hole of aperture d=9.5mm;
10, described blank is placed in mould upper punch swaging of extending and becomes described annular groove, to form described finished product.
In other embodiments, before the described blank diameter design marker map according to determining, described method also comprises:
Adopt cutting machine to cut the different sample blank different with sample aperture of N number of specimen finish, described N be more than or equal to 2 integer;
Mould upper punch swaging of extending described in being placed in by described N number of sample blank becomes described annular groove, to form N number of sample finished product;
The aperture difference of more described N number of sample finished product respectively and between described finished product and diameter difference, be defined as the described blank diameter determined and the described aperture determined by the specimen finish of the sample blank corresponding with the aperture difference between described finished product and the minimum sample finished product of diameter difference and sample aperture.
Above-mentioned cold stamping method is according to the blank diameter determined and the aperture design marker map determined, punching and blanking compound die is adopted to make blank according to described marker map, and simultaneously on blank punching to form described through hole, described blank is placed in mould upper punch swaging of extending and becomes described annular groove, described finished product can be formed, and without the need to carrying out deburring, solve or partly solve in prior art and need the secondary trimming die of increase by, thus cause converted products cost increase, and also need place to place the technical problem of this secondary trimming die.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. a cold stamping method, for making the finished product that has diameter, described finished product center offers through hole, and described finished product also has annular groove, and it is characterized in that, described cold stamping method comprises:
According to the blank diameter determined and the aperture design marker map determined, described blank diameter and described aperture determine according to the diameter of described finished product and the aperture of described through hole;
Punching and blanking compound die is adopted to make blank according to described marker map, and simultaneously on blank, punching is to form described through hole, the punch-die of described punching and blanking compound die, die, piercing punch Blade dimensions are determined by the described blank diameter determined and the described aperture determined;
Described blank is placed in mould upper punch swaging of extending and becomes described annular groove, to form described finished product, described in mould of extending determine according to the size of described finished product.
2. cold stamping method as claimed in claim 1, is characterized in that, before the described blank diameter design marker map according to determining, described method also comprises:
Cutting machine is adopted to cut the sample blank in a specimen finish and sample aperture;
Mould upper punch swaging of extending described in being placed in by described sample blank becomes described annular groove, to form a sample finished product;
Aperture difference between more described sample finished product and described finished product and difference in height;
When described aperture difference and described difference in height are greater than a preset value, revise described specimen finish, again make sample finished product;
When described aperture difference and described difference in height are less than or equal to described preset value, described specimen finish and described sample aperture are defined as the described blank diameter determined and the described aperture determined.
3. cold stamping method as claimed in claim 2, it is characterized in that, described specimen finish equals the twice of described radius of specimen, and described radius of specimen equals the area of described finished product divided by π, then opens radical sign.
4. cold stamping method as claimed in claim 1, is characterized in that, before the described blank diameter design marker map according to determining, described method also comprises:
Adopt cutting machine to cut the different sample blank different with sample aperture of N number of specimen finish, described N be more than or equal to 2 integer;
Mould upper punch swaging of extending described in being placed in by described N number of sample blank becomes described annular groove, to form N number of sample finished product;
The aperture difference of more described N number of sample finished product respectively and between described finished product and diameter difference, be defined as the described blank diameter determined and the described aperture determined by the specimen finish of the sample blank corresponding with the aperture difference between described finished product and the minimum sample finished product of diameter difference and sample aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410842947.7A CN104588490B (en) | 2014-12-30 | 2014-12-30 | Cold stamping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410842947.7A CN104588490B (en) | 2014-12-30 | 2014-12-30 | Cold stamping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588490A true CN104588490A (en) | 2015-05-06 |
| CN104588490B CN104588490B (en) | 2017-01-18 |
Family
ID=53114740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410842947.7A Active CN104588490B (en) | 2014-12-30 | 2014-12-30 | Cold stamping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104588490B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081075A (en) * | 2015-09-01 | 2015-11-25 | 无锡贺邦金属制品有限公司 | Method for stamping finished products with diameters |
| CN109048218A (en) * | 2018-08-21 | 2018-12-21 | 内蒙古第机械集团股份有限公司 | The cold stamping method of armour steel revolution bodily form shell conical part |
| CN110434226A (en) * | 2019-08-13 | 2019-11-12 | 武汉市尚佳盛汽车配件有限公司 | A kind of processing method and processing mold of tail light support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115334A (en) * | 1983-11-25 | 1985-06-21 | Toshiba Corp | Press forming die device |
| CN101537454A (en) * | 2009-04-09 | 2009-09-23 | 蚌埠市瑞泰汽配制造有限公司 | Technology for processing rotatable filter sealing ring fixed plate |
| CN101695727A (en) * | 2009-10-27 | 2010-04-21 | 中国重汽集团济南动力有限公司 | Stamping technology for integral door frame of heavy truck |
| CN101700549A (en) * | 2009-08-27 | 2010-05-05 | 四川宁江山川机械有限责任公司 | Molding process of spring plate of shock absorber and anti-drawing molding die |
| CN102284608A (en) * | 2011-08-30 | 2011-12-21 | 扬州捷迈锻压机械有限公司 | Spoke stamping formation process |
-
2014
- 2014-12-30 CN CN201410842947.7A patent/CN104588490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60115334A (en) * | 1983-11-25 | 1985-06-21 | Toshiba Corp | Press forming die device |
| CN101537454A (en) * | 2009-04-09 | 2009-09-23 | 蚌埠市瑞泰汽配制造有限公司 | Technology for processing rotatable filter sealing ring fixed plate |
| CN101700549A (en) * | 2009-08-27 | 2010-05-05 | 四川宁江山川机械有限责任公司 | Molding process of spring plate of shock absorber and anti-drawing molding die |
| CN101695727A (en) * | 2009-10-27 | 2010-04-21 | 中国重汽集团济南动力有限公司 | Stamping technology for integral door frame of heavy truck |
| CN102284608A (en) * | 2011-08-30 | 2011-12-21 | 扬州捷迈锻压机械有限公司 | Spoke stamping formation process |
Non-Patent Citations (1)
| Title |
|---|
| 罗亚军等: "板料成形过程中合理毛坯形状的确定", 《塑性工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081075A (en) * | 2015-09-01 | 2015-11-25 | 无锡贺邦金属制品有限公司 | Method for stamping finished products with diameters |
| CN109048218A (en) * | 2018-08-21 | 2018-12-21 | 内蒙古第机械集团股份有限公司 | The cold stamping method of armour steel revolution bodily form shell conical part |
| CN110434226A (en) * | 2019-08-13 | 2019-11-12 | 武汉市尚佳盛汽车配件有限公司 | A kind of processing method and processing mold of tail light support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588490B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202411236U (en) | Automatic deburring progressive die | |
| CN104588490B (en) | Cold stamping method | |
| CN204974977U (en) | Take discharge mold utensil under movable blank holder deep -drawing | |
| CN206509400U (en) | A kind of top cover stiffener plate progressive die | |
| CN103611805A (en) | Punching stretching tool | |
| CN205056832U (en) | Car pipe support multistation upgrades mould | |
| CN109676027A (en) | Electric car start stop apparatus shell stamping die and technique | |
| CN105073296B (en) | The improved method of the end surface cut off | |
| CN108856619A (en) | A kind of spur gear finish forge mould | |
| CN105033048A (en) | Vehicle connecting plate part forming mold and forming method | |
| CN108080472A (en) | A kind of self-balancing hardware stamping device | |
| CN105098422A (en) | Integral connector end structure and fabrication method thereof | |
| CN205309081U (en) | Gasket blanking die | |
| CN205436820U (en) | Cell -phone is with high -accuracy screw precision forming drift | |
| CN103746208A (en) | Contact elastic piece and high-precision manufacturing method thereof | |
| CN102699641A (en) | Method for processing bush of curve step | |
| CN103736841B (en) | Auto parts machinery method for high-precision manufacturing | |
| CN208437514U (en) | A kind of mold suitable for producing movable contact spring | |
| CN106825238A (en) | A kind of punching chamfers mould of clutch diaphragm spring | |
| CN206981515U (en) | A kind of more die cavity accurate punching moulds | |
| CN104384341B (en) | Continuous punching die for oil pipe fixing vertical plate | |
| KR102145844B1 (en) | Drawing forming apparatus for cap | |
| CN103406444A (en) | Continuous die capable of achieving intra-die riveting of laptop cooling fins | |
| CN202695952U (en) | D-SUB terminal model | |
| CN102327971A (en) | Double-puncture type terminal die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant after: CRRC YANGTZE CO., LTD. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant before: China South Locomotive & Rolling Stock Changjiang Vehicle Company |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |