CN204093950U - A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation - Google Patents
A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation Download PDFInfo
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- CN204093950U CN204093950U CN201420468863.7U CN201420468863U CN204093950U CN 204093950 U CN204093950 U CN 204093950U CN 201420468863 U CN201420468863 U CN 201420468863U CN 204093950 U CN204093950 U CN 204093950U
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- punching pin
- arc chamfering
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- 238000004080 punching Methods 0.000 title claims abstract description 114
- 230000009466 transformation Effects 0.000 title claims abstract description 35
- 239000002184 metal Substances 0.000 title claims abstract description 32
- 239000011159 matrix material Substances 0.000 claims abstract description 32
- 230000008030 elimination Effects 0.000 claims description 12
- 238000003379 elimination reaction Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000750 progressive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses a kind of continuous mould eliminating many row punchings sheet metal generation wave transformation, comprise die shoe and upper bolster, described upper bolster is provided with outer guiding post, described die shoe is provided with the outer pilot hole for described outer guiding post within it slide-and-guide, die backboard is provided with on the upside of described die shoe, punching pin backboard is provided with on the downside of described upper bolster, punching pin holding plate is provided with on the downside of punching pin backboard, described die backboard top is provided with die, described punching pin holding plate is provided with punching pin, the main points of its technical scheme are, maximal clearance Dmax between the punching pin cross section circular arc chamfering section of described punching pin and the matrix cavity cross section circular arc chamfering section of described die arranges the clearance D be greater than between punching pin cross section flat segments and matrix cavity cross section flat segments.
Description
[technical field]
The present invention relates to a kind of sheet metal punch machining equipment for automotive, is more particularly a kind of continuous mould eliminating many row punchings sheet metal generation wave transformation.
[background technology]
Each producer that is growing more intense with market competition develops the sheet metal continuous punching product that sheet is widened one after another, to improve the production efficiency of product, lowers the manufacturing cost of product.
The sheet metal continuous punching product that sheet is widened, in punching production process, easily produce wave transformation problem, wave transformation problem can have a strong impact on carrying out smoothly of follow-up production process.Wave problem is a technical barrier of puzzlement industry.
Wave producing cause is analyzed, and new die or the initial a period of time after grinding mould clip, clip is in sharper state stamping products can not produce wave transformation.After punching press a period of time mould clip rust, stamping products starts to produce wave transformation.The stamping-out face whole section of circular arc chamfering section is rendered as euphotic belt, obvious difference is had with the normal stamping-out section of near zone flat side section, the reason producing this phenomenon produces caused by violent friction after punching pin rust and between stamped metal thin plate, creates very large compression in stamped metal thin plate inside simultaneously.
When product produces wave transformation, observe punching pin and find that wearing and tearing rust has all appearred in the flat side of punching pin and fillet position, the edge of a knife is radiussed, and fillet position can be larger than flat side wearing and tearing, it is approximately the twice of flat side between worn area, punching pin cutting edge rust, the tension causing punching press each stage to produce in the stamped metal thin plate inside that is stamped and compression all can be multiplied, and especially compression increase is more obvious.
When a punching press release, the reaction force of the compression of the external constraint power Bei Xie Chu ﹐ material internal of product can make product produce deformation tendency, and when reaction force to a certain extent time, will unstability, thus formed locally to arch upward and be wave transformation.
In sum, stamped metal light sheet products produces the reason of wave transformation is that especially the compression in product chamfered section region causes due to the compression in interiors of products generation after the wearing and tearing of punching pin cutting edge.
How slowing down punching pin wearing and tearing is that the You solving stamped metal light sheet products wave transformation problem imitates the wearing and tearing that Tu Jing ﹐ especially slows down punching pin chamfered section region, and the applicant attempts adopting the following technique Shi proved recipe An ﹐ of design to wish to solve stamped metal light sheet products wave transformation problem.
1. change the engineer testing of punching production punching oil: from Product Process angle, wish that punching oil volatility is good, product easy to clean and mould, viscosity is low.From increase punching pin lubrication, slow down punching pin Wear angle, require that punching oil viscosity wants high.Trial is used high viscosity punching oil instead and is found: wave problem is slightly improved, but does not reach re-set target, and the frequency of mould plug bits increases more, and this scheme is infeasible.
2. punching pin material is replaced by the engineer testing of more wear-resisting ceramic material: conventional Hardmetal materials is replaced by ceramic material and attempts, because ceramic material is monocrystalline material, 3 times of it the is wear-resistant life-span is approximately carbide alloy, but the fracture resistence force of ceramic material is all very low with destruction toughness value, pottery punching pin is easy to occur tipping, and the punching pin non-abrasive such as to fracture is destroyed.Therefore, if use ceramic punching pin Yin Qiyi collapse easy to break and cause this scheme of the too large ﹐ of risk also infeasible in mould.
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, there is provided a kind of and eliminate the continuous mould that many row punchings sheet metal produces wave transformation, when ensureing product quality and punching pin intensity, adopting the gap increased between progressive die punching pin cross section circular arc chamfering section and matrix cavity cross section circular arc chamfering section effectively to eliminate continuous mould stamped metal thin plate and producing wave transformation.
The present invention is achieved by the following technical solutions:
A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation, comprise die shoe 10 and upper bolster 20, described upper bolster 20 is provided with outer guiding post 60, described die shoe 10 is provided with the outer pilot hole 101 for described outer guiding post 60 within it slide-and-guide, die backboard 30 is provided with on the upside of described die shoe 10, punching pin backboard 40 is provided with on the downside of described upper bolster 20, punching pin holding plate 50 is provided with on the downside of punching pin backboard 40, described die backboard 30 top is provided with die 2, described punching pin holding plate 50 is provided with punching pin 1, it is characterized in that: the maximal clearance Dmax between the punching pin cross section circular arc chamfering section 101 of described punching pin 1 and the matrix cavity cross section circular arc chamfering section 201 of described die 2 arranges the clearance D be greater than between punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202.
Elimination many row punchings sheet metal as above produces the continuous mould of wave transformation, it is characterized in that: the circular arc chamfering radius R p of described punching pin cross section circular arc chamfering section 101 is greater than the circular arc chamfering radius R d of described matrix cavity cross section circular arc chamfering section 201.
Elimination many row punchings sheet metal as above produces the continuous mould structure of wave transformation, it is characterized in that: the clearance D=0.0075mm ~ 0.0085mm between described punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202, the circular arc chamfering radius R p=0.09mm ~ 0.105mm of described punching pin cross section circular arc chamfering section 101, the circular arc chamfering radius R d=0.075mm ~ 0.08mm of described matrix cavity cross section circular arc chamfering section 201.
Elimination many row punchings sheet metal as above produces the continuous mould structure of wave transformation, it is characterized in that: the clearance D=0.008mm between described punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202, the circular arc chamfering radius R p=0.09mm of described punching pin cross section circular arc chamfering section 101, the circular arc chamfering radius R d=0.08mm of described matrix cavity cross section circular arc chamfering section 201.
Elimination many row punchings sheet metal as above produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.095mm of described punching pin cross section circular arc chamfering section 101.
Elimination many row punchings sheet metal as above produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.1mm of described punching pin cross section circular arc chamfering section 101.
Elimination many row punchings sheet metal as above produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.105mm of described punching pin cross section circular arc chamfering section 101.
Compared with prior art, the present invention has the following advantages:
1, the present invention adopts the gap increased between progressive die punching pin cross section circular arc chamfering section and matrix cavity cross section circular arc chamfering section to wear and tear to reduce punching pin, and abatement stamped metal thin plate produces internal stress in punching course.Effectively eliminate continuous mould stamped metal thin plate when ensureing product quality and punching pin intensity and produce wave transformation.
2, the circular arc chamfering radius that the present invention adopts the circular arc chamfering radius of punching pin cross section circular arc chamfering section to be greater than matrix cavity cross section circular arc chamfering section arranges to the maximal clearance realized between progressive die punching pin cross section circular arc chamfering section and matrix cavity cross section circular arc chamfering section the gap be greater than between punching pin cross section flat segments and matrix cavity cross section flat segments, internal diameter is greater than external diameter, mould is easily processed, and easily realizes.
[accompanying drawing explanation]
Fig. 1 is structure cut-away illustration of the present invention;
Fig. 2 is that punching pin of the present invention coordinates schematic diagram with die.
[detailed description of the invention]
A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation, comprise die shoe 10 and upper bolster 20, described upper bolster 20 is provided with outer guiding post 60, described die shoe 10 is provided with the outer pilot hole 101 for described outer guiding post 60 within it slide-and-guide, die backboard 30 is provided with on the upside of described die shoe 10, punching pin backboard 40 is provided with on the downside of described upper bolster 20, punching pin holding plate 50 is provided with on the downside of punching pin backboard 40, described die backboard 30 top is provided with die 2, described punching pin holding plate 50 is provided with punching pin 1, maximal clearance Dmax between the punching pin cross section circular arc chamfering section 101 of described punching pin 1 and the matrix cavity cross section circular arc chamfering section 201 of described die 2 arranges the clearance D be greater than between punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202.
Gap must control in certain limit, and the too small easy generation internal stress in gap, excesssive gap easily produces burr.
The circular arc chamfering radius R p of described punching pin cross section circular arc chamfering section 101 is greater than the circular arc chamfering radius R d of described matrix cavity cross section circular arc chamfering section 201.
Clearance D=0.0075mm ~ 0.0085mm between described punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202, the circular arc chamfering radius R p=0.09mm ~ 0.105mm of described punching pin cross section circular arc chamfering section, the circular arc chamfering radius R d=0.075mm ~ 0.08mm of described matrix cavity cross section circular arc chamfering section.In above-mentioned number range, all can ensure product quality, eliminate wave transformation.
Gap between described punching pin cross section flat segments 102 and matrix cavity cross section flat segments 202 is preferably D=0.008mm, the circular arc chamfering radius of described punching pin cross section circular arc chamfering section 101 is preferably Rp=0.09mm, and the circular arc chamfering radius of described matrix cavity cross section circular arc chamfering section 201 is preferably Rd=0.08mm.Now, maximal clearance Dmax=0.015mm between punching pin cross section circular arc chamfering section 101 and matrix cavity cross section circular arc chamfering section 201, product fillet position is compared flat side position and is collapsed angle band relatively, and euphotic belt is wider, wave transformation is eliminated substantially, and burr is in management and control specification limit.
The circular arc chamfering radius R p=0.095mm of described punching pin cross section circular arc chamfering section 101.Now, maximal clearance Dmax=0.018mm between punching pin cross section circular arc chamfering section 101 and matrix cavity cross section circular arc chamfering 201, product fillet position is compared flat side position and is collapsed angle band relatively, euphotic belt also relatively, wave transformation is eliminated, burr in management and control specification limit, this value best results.
The circular arc chamfering radius R p=0.1mm of described punching pin cross section circular arc chamfering section 101.Now, maximal clearance Dmax=0.02mm between punching pin cross section circular arc chamfering section 101 and matrix cavity cross section circular arc chamfering section 201, product fillet position is compared flat side position and is collapsed angle band relatively, and euphotic belt is also relatively, burr is in management and control specification limit, but burr is slightly large.
The circular arc chamfering radius R p=0.105mm of described punching pin cross section circular arc chamfering section 101.Now, maximal clearance Dmax=0.022mm between punching pin cross section circular arc chamfering section 101 and matrix cavity cross section circular arc chamfering section 201, product fillet position is compared flat side position and is collapsed angle band relatively, euphotic belt also relatively, wave transformation is eliminated, burr is in management and control specification limit, but burr is slightly large.
Claims (7)
1. eliminate the continuous mould that many row punchings sheet metal produces wave transformation for one kind, comprise die shoe (10) and upper bolster (20), described upper bolster (20) is provided with outer guiding post (60), described die shoe (10) is provided with the outer pilot hole (101) for described outer guiding post (60) within it slide-and-guide, described die shoe (10) upside is provided with die backboard (30), described upper bolster (20) downside is provided with punching pin backboard (40), punching pin backboard (40) downside is provided with punching pin holding plate (50), described die backboard (30) top is provided with die (2), described punching pin holding plate (50) is provided with punching pin (1), it is characterized in that: the maximal clearance Dmax between punching pin cross section circular arc chamfering section (101) of described punching pin (1) and matrix cavity cross section circular arc chamfering section (201) of described die (2) arranges the clearance D be greater than between punching pin cross section flat segments (102) and matrix cavity cross section flat segments (202).
2. elimination many row punchings sheet metal according to claim 1 produces the continuous mould of wave transformation, it is characterized in that: the circular arc chamfering radius R p of described punching pin cross section circular arc chamfering section (101) is greater than the circular arc chamfering radius R d of described matrix cavity cross section circular arc chamfering section (201).
3. elimination many row punchings sheet metal according to claim 2 produces the continuous mould structure of wave transformation, it is characterized in that: the clearance D=0.0075mm ~ 0.0085mm between described punching pin cross section flat segments (102) and matrix cavity cross section flat segments (202), the circular arc chamfering radius R p=0.09mm ~ 0.105mm of described punching pin cross section circular arc chamfering section (101), the circular arc chamfering radius R d=0.075mm ~ 0.08mm of described matrix cavity cross section circular arc chamfering section (201).
4. elimination many row punchings sheet metal according to claim 3 produces the continuous mould structure of wave transformation, it is characterized in that: the clearance D=0.008mm between described punching pin cross section flat segments (102) and matrix cavity cross section flat segments (202), the circular arc chamfering radius R p=0.09mm of described punching pin cross section circular arc chamfering section (101), the circular arc chamfering radius R d=0.08mm of described matrix cavity cross section circular arc chamfering section (201).
5. elimination many row punchings sheet metal according to claim 3 produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.095mm of described punching pin cross section circular arc chamfering section (101).
6. elimination many row punchings sheet metal according to claim 3 produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.1mm of described punching pin cross section circular arc chamfering section (101).
7. elimination many row punchings sheet metal according to claim 3 produces the continuous mould structure of wave transformation, it is characterized in that: the circular arc chamfering radius R p=0.105mm of described punching pin cross section circular arc chamfering section (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468863.7U CN204093950U (en) | 2014-08-19 | 2014-08-19 | A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468863.7U CN204093950U (en) | 2014-08-19 | 2014-08-19 | A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation |
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| Publication Number | Publication Date |
|---|---|
| CN204093950U true CN204093950U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420468863.7U Expired - Lifetime CN204093950U (en) | 2014-08-19 | 2014-08-19 | A kind of continuous mould eliminating many row punchings sheet metal generation wave transformation |
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| Country | Link |
|---|---|
| CN (1) | CN204093950U (en) |
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2014
- 2014-08-19 CN CN201420468863.7U patent/CN204093950U/en not_active Expired - Lifetime
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150114 |