CN101024232A - Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts - Google Patents
Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts Download PDFInfo
- Publication number
- CN101024232A CN101024232A CN 200710078358 CN200710078358A CN101024232A CN 101024232 A CN101024232 A CN 101024232A CN 200710078358 CN200710078358 CN 200710078358 CN 200710078358 A CN200710078358 A CN 200710078358A CN 101024232 A CN101024232 A CN 101024232A
- Authority
- CN
- China
- Prior art keywords
- die
- pressing plate
- blank
- punch
- plate
- 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
Images
Landscapes
- Punching Or Piercing (AREA)
Abstract
The invention relates to composite squeezing fine punching forming method used in processing low plasticity or heavy plate parts. The adopted forming device includes pressure plate, male die, cavity die, and inverse top plate etc. The pressure plate is set V shape ring. The cavity die is set the corresponding V shape slot. While beginning fine punching, the pressure plate is processed combined extrusion for the blank to a certain extent to make the waste have rigidity cylinder effect together with the cavity die. Then the parts are processed fine punching by the male die. The method not only can be used to process low plasticity heavy plate, but also can gain the parts with good consistency section.
Description
Technical field
The invention belongs to the sheet forming technology, be specifically related to a kind of fine-punching formation technology.
Background technology
Existing fine-punching formation technology has powerful flanging fine blanking technology, subtend die fine blanking technology etc., and they each have its pluses and minuses and accommodation:
1. powerful flanging fine blanking technology is a separation circuit from see in form, but in fact workpiece with remain before billot in the end separates as a whole.Essence is broken through the process that journey is a plastic deformation, and the part of processing has that dimensional uniformity is good, and the shear surface roughness can reach Ra3.6～0.2, and collapse angle and burr are all than advantages such as common stamping part are little.Its shortcoming is to process cut deal inductile part.
2. smart the dashing of subtend die grows up on the basis in powerful flanging essence, towards unmanageable part, can adopt subtend die essence to dash for the powerful flanging essence of the thicker employing of the relatively poor thickness of material plasticity.Its shortcoming is because on protruding die and the die size or install, or the reason of kinematic error, essence towards the time as easy as rolling off a logly on section, leave a trace, cause cross section quality poor.
Summary of the invention
The objective of the invention is to the deficiency that exists at prior art, a kind of composite extruding fine-punching formation method and mould of processing low-plasticity thick-plate parts is provided, not only can the processing low-plasticity slab, and can obtain the good part of section uniformity.
Technical scheme of the present invention is as follows:
The shaped device that this composite extruding fine-punching formation method adopted comprises pressing plate, punch, die and anti-top board etc., and v shaped ring E is arranged on the pressing plate, has corresponding V-shaped groove F on the die, and method comprises step:
The first step: stripper plate is relative with punch to be locked and moves downward, and v shaped ring enters blank fully, and a part of blank flows into the die V-shaped groove.
Second step: stripper plate and punch continue descending, the blank waste part is extruded fully, material flows in the die cavity of die in a large number simultaneously, and anti-top board is forced to back off, and wherein the sub-fraction material is gone in the shallow die cavity of stripper plate by backward extrusion, shallow depth of cavity is the angle thickness that collapses of workpiece, in this process, waste material is under the Compound Extrusion effect, and major part radially outwards flows, a part enters V-shaped groove, and sub-fraction is radially to center flow.When outer blank by ironed to about thickness 2/3 the time (concrete size is determined according to material character and part thickness) pressing plate stop descending.
The 3rd step: stripper plate keep-ups pressure, invariant position, and punch is downward, and blank enters die under the forward extrusion effect.
The 4th step: the mould die sinking, with anti-top board part to be released, the composite extruding fine-punching process finishes.
Advantage of the present invention shows following several aspect:
1. the good product quality of Huo Deing: dimensional tolerance is IT8～7 grade, and the shear surface roughness can reach 0.8um～0.4um, and the essence of being produced can be directly used in the assembling of machinery towards part, saves subsequent handling.
2. can process inductile, thick-plate parts that existing fine blanking technology is difficult to processing.In the composite extruding fine-punching process, plastic deformation does not occur over just the place that separates of part and waste material, and bigger plastic deformation has also taken place in the waste material zone.One of main feature of composite extruding fine-punching is exactly that its pressing plate is broken through in the journey in essence waste material has been carried out Compound Extrusion, impel waste material to produce plasticity depletion, to around waste material almost can't redeformation, at this moment, when punch moves downward again just as forward extrusion workpiece in rigid cylinder, thereby the essence of high-carbon steel part 3mm that has substantially exceeded fine blanking technology processing is towards the limit, and can obtain high surface quality.
3. workpiece section uniformity is fine, can not produce burr.In composite extruding fine-punching technology, pressing plate indent (the being shallow die cavity) degree of depth is the angle thickness that collapses of workpiece, and the two-sided angle of collapsing has appearred in the extruding at two, has removed the chamfer machining of two part end faces from, has saved man-hour.
4. can enhance productivity, save production equipment.Dash can only working plastic material because existing gear ring pressing plate is smart, thickness can not be too big (domestic can only arrive 12mm), China adopts mechanical processing technique mostly for the inductile thick-plate parts at present, if adopt composite extruding fine-punching technology, production efficiency can greatly improve, and, therefore can save equipment such as milling machine, grinding machine because part just has Grinding Machining Quality after essence has been dashed.
This method has extraordinary application prospect aspect the inductile thick-plate parts processing such as high-carbon steel.
Description of drawings
Fig. 1 is the shaped device state diagram that realizes each step of this manufacturing process;
Wherein: a of Fig. 2, b, c, d are the shaped device state diagram in first, second, third and fourth step of method successively.
The specific embodiment
Shaped device such as Fig. 1 that this method adopts show that it is made up of pressing plate 1, die 3, punch 4 and anti-top board 5.V shaped ring E is arranged on the pressing plate 1, has corresponding V-shaped groove F on the die 3,
As seen a, b, c, d in conjunction with Fig. 2 scheme, and the implementation process of this method is as follows:
1, Fig. 2 a: stripper plate 1 and punch 4 are relative to be locked and moves downward, and v shaped ring enters blank fully, and a part of blank flows into the die V-shaped groove.
2, Fig. 2 b: stripper plate 1 and punch 2 continue descending, the blank waste part is extruded, and simultaneously, material is clamp-oned in the die cavity of die 3 in a large number, anti-top board 5 is forced to back off, wherein a part of material is gone into by backward extrusion in the shallow die cavity of stripper plate 1, and shallow depth of cavity is controlled to be the angle thickness that collapses of workpiece, in this process, waste material is under the Compound Extrusion effect, major part radially outwards flows, and a part enters V-shaped groove, and sub-fraction is radially to center flow.When outer blank by ironed to about thickness 2/3 the time (concrete size is determined according to material character and part thickness) pressing plate stop.
3, Fig. 2 c: stripper plate keep-ups pressure, invariant position, and punch is downward, and blank enters die under the forward extrusion effect.
4, Fig. 2 d: the mould die sinking, anti-top board 5 is released part, and the composite extruding fine-punching process finishes.
Claims (2)
1, a kind of composite extruding fine-punching formation method of processing low-plasticity thick-plate parts is characterized in that the building mortion that this method adopts includes pressing plate (1), punch (4), die (3) and anti-top board (5); Pressing plate has v shaped ring E on (1), has corresponding V-shaped groove F on the die (3), comprises following forming step:
The first step: lock and move downward pressing plate (1) is relative with punch (4), make the v shaped ring E on the pressing plate (1) enter blank fully, a part of blank flows in the V-shaped groove F of die (3);
Second step: it is descending to allow stripper plate (1) and punch (2) continue, the blank waste part is extruded fully, material is flowed in the die cavity of die (3) in a large number, anti-top board (5) is forced to back off, allow wherein the sub-fraction material be gone in the shallow die cavity of stripper plate (1) by backward extrusion, shallow depth of cavity is the angle height that collapses of workpiece, waste material is under the Compound Extrusion effect, major part radially outwards flows, a part enters V-shaped groove F, sub-fraction is radially to center flow, when outer blank by ironed to about thickness 2/3 the time to stop pressing plate descending;
The 3rd step: keep stripper plate (1) pressure, invariant position, make punch (2) downward, allow blank under the forward extrusion effect, enter die;
The 4th step: the mould die sinking, with anti-top board (5) part to be released, the composite extruding fine-punching process finishes.
2, realize the mould of the described method of claim 1, it is characterized in that: it is made up of pressing plate (1), die (3), punch (4) and anti-top board (5), and pressing plate has v shaped ring E on (1), has corresponding V-shaped groove F on the die (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100783586A CN101024232B (en) | 2007-03-31 | 2007-03-31 | Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100783586A CN101024232B (en) | 2007-03-31 | 2007-03-31 | Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101024232A true CN101024232A (en) | 2007-08-29 |
| CN101024232B CN101024232B (en) | 2011-11-09 |
Family
ID=38743048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100783586A Expired - Fee Related CN101024232B (en) | 2007-03-31 | 2007-03-31 | Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101024232B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526613C (en) * | 2007-09-04 | 2009-08-12 | 南京金城机械有限公司 | Fixing method for air valve seat and special mould therefor |
| CN101259509B (en) * | 2008-04-23 | 2010-06-09 | 武汉理工大学 | Forming technique for sheet metal stamping cold forging and fine blanking composite boss part |
| CN102672050A (en) * | 2012-05-25 | 2012-09-19 | 武汉理工大学 | Precision stamping mold and rotary precision stamping forming method using same to process helical gears |
| CN103480738A (en) * | 2013-09-25 | 2014-01-01 | 常熟市金马模具有限公司 | Novel die |
| CN103567305A (en) * | 2013-11-22 | 2014-02-12 | 武汉理工大学 | Lubricating device of precisely-stamped die |
| CN107405672A (en) * | 2015-03-06 | 2017-11-28 | Ｊｘ金属株式会社 | Punch press process method, the manufacture method of punch forming part and punch forming part |
| CN111842524A (en) * | 2020-08-05 | 2020-10-30 | 南昌航空大学 | Extrusion forming die and method for parts with grooves |
| CN112893644A (en) * | 2021-01-29 | 2021-06-04 | 无锡鹏德汽车配件有限公司 | Punch structure for fine punching and extruding composite forming of metal plate |
-
2007
- 2007-03-31 CN CN2007100783586A patent/CN101024232B/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526613C (en) * | 2007-09-04 | 2009-08-12 | 南京金城机械有限公司 | Fixing method for air valve seat and special mould therefor |
| CN101259509B (en) * | 2008-04-23 | 2010-06-09 | 武汉理工大学 | Forming technique for sheet metal stamping cold forging and fine blanking composite boss part |
| CN102672050A (en) * | 2012-05-25 | 2012-09-19 | 武汉理工大学 | Precision stamping mold and rotary precision stamping forming method using same to process helical gears |
| CN103480738A (en) * | 2013-09-25 | 2014-01-01 | 常熟市金马模具有限公司 | Novel die |
| CN103567305A (en) * | 2013-11-22 | 2014-02-12 | 武汉理工大学 | Lubricating device of precisely-stamped die |
| CN103567305B (en) * | 2013-11-22 | 2016-02-03 | 武汉理工大学 | A kind of fine blanking die lubricating arrangement |
| CN107405672A (en) * | 2015-03-06 | 2017-11-28 | Ｊｘ金属株式会社 | Punch press process method, the manufacture method of punch forming part and punch forming part |
| CN107405672B (en) * | 2015-03-06 | 2019-07-12 | Ｊｘ金属株式会社 | Punch press process method, the manufacturing method of punch forming part and punch forming part |
| CN111842524A (en) * | 2020-08-05 | 2020-10-30 | 南昌航空大学 | Extrusion forming die and method for parts with grooves |
| CN111842524B (en) * | 2020-08-05 | 2021-09-17 | 南昌航空大学 | Extrusion forming die and method for parts with grooves |
| CN112893644A (en) * | 2021-01-29 | 2021-06-04 | 无锡鹏德汽车配件有限公司 | Punch structure for fine punching and extruding composite forming of metal plate |
| CN112893644B (en) * | 2021-01-29 | 2024-04-09 | 江苏鹏德工业科技有限公司 | Punch structure for metal plate fine punching extrusion composite forming |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101024232B (en) | 2011-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101024232B (en) | Composite extruding fine-punching formation method and mould for processing low-plasticity or thick-plate parts | |
| CN100491007C (en) | Projective table type composite extruding precision punching forming mould | |
| CN101386045B (en) | Method and device for manufacturing stamping parts with a larger functional area | |
| CN103212620B (en) | Impulse-free robustness blanking method and stamping-out system | |
| CN110586845B (en) | Manufacturing method of large square nut for automobile chassis connecting system | |
| CN102120236B (en) | Machining method for precision punching forming of fine toothed parts | |
| CN100512994C (en) | Enclosed extruding precision punching forming method | |
| CN103357782A (en) | Machining method for rear wheel cover of automobile | |
| CN202701098U (en) | Two-way fine blanking die | |
| CN113926917B (en) | Drawing and trimming composite die for automobile front floor and processing method thereof | |
| CN101693272A (en) | Technology for processing U-shaped connecting boards of heavy-duty trucks | |
| CN202278062U (en) | Fine blanking extruding device | |
| CN207508073U (en) | Without the angle entire bright punching fine blanking die that collapses | |
| CN104384322B (en) | A kind of forming technology of Used for Sheet Stamping extrusion cladding boss part | |
| CN101293315A (en) | Hot extrusion production method for pre-stress anchor clipper | |
| CN114523031B (en) | Processing technology for cutting part without burr and product thereof | |
| CN102248062A (en) | Die for trimming casing of MP3 | |
| CN201536300U (en) | Stator pieces notching and inner bore trimming compound die for electromotor | |
| CN201195411Y (en) | Thin material blanking mould with prepressurization stress | |
| CN1298454C (en) | Process for fabricating blind holes | |
| CN110052533A (en) | Stamping die | |
| CN102689149A (en) | Continuous press forging precise forming process of automobile retaining frame part | |
| CN103551439B (en) | Non-pollution cold extruding molding method and cold extruding mould for packaging container flange | |
| CN204974994U (en) | Novel chamfer of punching a hole fine blanking mould | |
| CN1280038C (en) | Fine blanking method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING UNIVERSITY OF TECHNOLOGY Free format text: FORMER NAME: CHONGQING ENGINEERING COLLEGE |
|
| CP03 | Change of name, title or address |
Address after: No. 69 lijiatuo Chongqing District of Banan City Road 400054 red Patentee after: Chongqing University of Technology Address before: 400050 Chongqing Jiulongpo Yangjiaping Xingsheng Road No. 4 Patentee before: Chongqing Engineering College |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20130331 |