WO1999025507A2 - Vorrichtung zum herstellen eines werkstückes durch stanzen - Google Patents
Vorrichtung zum herstellen eines werkstückes durch stanzen Download PDFInfo
- Publication number
- WO1999025507A2 WO1999025507A2 PCT/EP1998/007304 EP9807304W WO9925507A2 WO 1999025507 A2 WO1999025507 A2 WO 1999025507A2 EP 9807304 W EP9807304 W EP 9807304W WO 9925507 A2 WO9925507 A2 WO 9925507A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- stamp
- plate
- stamp unit
- tool part
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
Definitions
- the invention relates to a device for producing a workpiece by punching from a punched strip, in particular by fine cutting, with an upper tool part and a lower tool part, at least one part having at least one punch, and a method therefor.
- Punching devices are known in many forms and designs and are on the market. Especially with fineblanking devices, such as those are shown in EP-A-0 183 648, excellent stamped parts with improved cutting surfaces can be produced.
- stamp and guides can be moved relative to each other so that they represent wear parts. Guides tend to leak and can no longer guide, which is why they are coated today, for example, which in turn is expensive.
- the present invention has for its object to provide a device of the above. To create a type which is simple in construction and construction, in which the retention of a punched strip during punching or cutting is improved and in which an exchange of working elements which are susceptible to wear and tear is made considerably easier.
- the stamp is part of an independently removable stamp unit in the upper and / or lower part of the tool.
- the aim is to arrange as many of the work elements that are to be exchanged as possible in a stamp unit and to arrange them easily in the tool.
- the stamp unit consists only of a stamp centering plate and a stamp holding plate and contains all stamps or replacement elements that are susceptible to wear.
- the stamp unit is arranged in such a way that it can only be detached from the corresponding tool part and removed from the machine by loosening a few fastening elements. If, for example, the stamp unit is located on the upper part of the tool, the corresponding screw can be loosened are, provided a locking bolt is also provided, which holds the stamp unit on the upper part of the tool. The upper part of the tool is then lowered until the stamp unit rests on the lower part of the tool or a spacer plate. Now the locking bolt can also be released from the upper tool part, so that the stamp unit is released. It is now possible to replace an entire stamp unit or only stamps or working elements or only corresponding inserts that are prone to wear. The time required for this is only minimal compared to the previous time required.
- the upper part of the tool and the lower part of the tool are connected to an upper or lower interchangeable plate via corresponding insert rings, which together form a tool frame for insertion into a punching device.
- a tool frame is preferably fixed using quick-release devices, as shown in EP-A-0 201 456.
- the upper part of the tool can be connected directly to a machine pressure stamp via the upper insert ring and the upper removable plate, which carries out the necessary lifting movement for the working elements of the upper part of the tool.
- guides of the working elements can be dispensed with, since in the actual working elements there is no relative movement between, for example, the punch and the punch bore.
- Another idea of the invention relates to the holding of the lead frame during the fine blanking process. According to the invention, this retention is now taken over by one or more pressure bolts, the number and design of which is determined by the workpiece contour.
- These pressure bolts have their own hydraulics, because they must remain in this position when lowering the machine stamp and after hitting the lead frame, although only then does the stamping or fine blanking process for the workpiece begin.
- these pressure bolts since these pressure bolts only have to exert holding forces, they or your guides are also not prone to wear. Furthermore, their guide length has been increased so that, for example, the punches or bolts cannot tilt, which could cause wear.
- FIG. 1 shows a cross section through a tool frame for insertion in a fine blanking device, for example
- FIG. 2 shows a plan view of a punched strip with a workpiece to be punched out and elements of tool parts
- FIG. 3 shows a cross section through a tool, in particular a fineblanking device
- Figure 4 to Figure 6 cross sections through the tool acc. Figure 3 in different positions of use;
- FIG. 7 shows a cross section through a tool frame in, for example, a fine blanking device shown only partially in the open position
- Figures 8 to 11 cross sections through the tool frame acc. Figure 7 in different positions of use;
- FIG. 12 sections through a stamp unit in different exchange levels
- Figure 13 top views of the cuts acc. Figure 12.
- an upper exchangeable plate 1 and a lower exchangeable plate 2 are connected to one another via guide columns 3.1 and 3.2.
- T-shaped rails 4.1, 4.2 and 4.3 are attached to the upper interchangeable plate 1 and to the lower interchangeable plate 2, which allow the tool frame G to be quickly fastened in a manner not shown here Serve punching device.
- This quick release device is shown in EP-A-0 201 456.
- a tool R which has an upper tool part 5 and a lower tool part 6, is inserted between the upper exchangeable plate 1 and the lower exchangeable plate 2.
- the upper tool part is connected via an upper insert ring 7 and the lower tool part 6 via a lower insert ring 8 to the upper exchangeable plate 1 or the lower exchangeable plate 2.
- the connection is made via corresponding bolts 9.1 or 9.2 or the like.
- the lower tool part 6 has a cutting insert 10 with a shrink ring 11.
- the cutting plate 10 is placed on a punch holder plate 12. Inside the cutting plate 10 there is a cutting insert 13 or a die, which is fixed by screws 14. Furthermore, there is an ejector 15 in the cutting plate 10, which is supported via an intermediate plate 16 against a rod 17, which in turn strikes a plate 18 in the lower insert ring 8 in the assembled position. In the ejector 15 there is also a bore 19 and a punch 20, which cooperates with corresponding working elements of the upper tool part 5. Furthermore, the evaluator 15 is held in the lower insert ring 8 via a shoulder screw 21.
- the lower tool part 6 is connected to the lower insert ring 8 by screws 24.
- the upper tool part 5 has a stamp unit 25 which has a stamp centering plate 26 and a stamp holding plate 27. Both are together via screws 28 connected to a base plate 29. This is in turn attached to the upper insert ring 7 by screws 30.
- stamp unit 25 Various working elements are located in the stamp unit 25, namely a cutting stamp 31, various further stamps 32, only partially shown, and in particular a main stamp 33, in which the stamps 31 and 32 are also guided.
- This main stamp 33 lies opposite the ejector 15. It is also penetrated by a counter-punch 34 which interacts with the punch 20.
- the upper tool part 5 is further penetrated by pressure bolts 35 which, when assembled, also pass through the upper insert ring 7 and hit a counter plate 36 there.
- the counter-punch 34 also strikes this counter-plate 36.
- the base plate 29 is penetrated by a push-off bolt 37 which, when assembled, is under the pressure of a helical spring 38 in the upper insert ring 7.
- the push-off bolt 37 strikes the surface of the stamp unit 27 or the surface of the stamp-holding plate 27.
- the upper tool part 5 is penetrated by locking bolts 23. These are in the punch centering plate 26 by a grub screw 40 or the like. fixed, while a fixing in the base plate 29 is done releasably by a knurled screw 41.
- the upper insert ring 7 has corresponding bores for receiving the locking bolt 23, the helical spring 38 and the push-off bolt 37, the counter-punch 34 and the pressure bolt 35, which are not identified in any more detail.
- a brake pad carrier 42 is to be punched out of a punched strip 43.
- This brake pad carrier has various cut or cut holes that are not identified in detail.
- the punched strip is clamped between the upper tool part 5 and the lower tool part 6 by means of pressure bolts 35 and further pressure bolts (not shown in more detail), the number and shape of the pressure bolts being determined by the workpiece to be punched out. Otherwise, the pressure bolts 35 can also be provided with ring serrations and adjusted differently.
- the position of the main stamp 33 is otherwise predetermined by the stamp centering plate 26. There is no movement between the punch 33 and the punch centering plate 26, so that the punch centering plate 26 is also not subject to wear.
- the lowering of the upper tool part 5 together with the upper insert ring 7 takes place via the upper interchangeable plate 1 and directly via a machine stamp 44, which is only schematically indicated in FIG. 7 the punched strip 33 is slightly cut in the area of the workpiece to be punched out.
- the corresponding cutting force is marked with F s .
- the pressure pin 35 exerts a compressive force or annular jagged force F R on the stamping strip 43, which is held between the upper tool part 5 and the lower tool part 6.
- the ejector 15 produces a counterforce F G.
- the main punch 33 cuts out the desired workpiece from the punching strip 43, the holes 42 being simultaneously cut out from this workpiece 42 by punch 20. This gives way opposite the main stamp 33 of the ejector 15 and opposite the punch 20 of the counter stamp 34. Likewise, the pressure pin 35 also withdraws, with the counter plate 36 giving way under the influence of a hydraulic system (not shown here) for this purpose.
- the ejector 15 ejects the workpiece 42 and the counter-punch 34 ejects a round blank 45.
- this tool R manages without guide elements, in particular without a guide plate, guide column and guides. Furthermore, previously used block lower parts, block upper parts and a base can be dispensed with.
- An essential part of the present invention also relates to the replacement of important components, be it for the purpose of replacement, for the purpose of repair or even just for the purpose of cleaning. This process is described with reference to FIGS. 7 to 13.
- the essential work elements to be replaced are located. that is, the active elements in the tool head.
- FIGS. 12 and 13 indicate that, on the one hand, there is the possibility of exchanging the entire stamp unit 25. However, it is also contemplated to replace only the working elements, various stamps 32.1 to 32.3 and the cutting stamp 31 being mentioned here. This also includes the main stamp 33 or lateral, additional inserts 47.1 and 47.2.
- the installation of the stamp unit 25 in the tool R is done in reverse ways.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997151238 DE19751238A1 (de) | 1997-11-19 | 1997-11-19 | Vorrichtung zum Herstellen eines Werkstückes durch Stanzen |
DE19751238.0 | 1997-11-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO1999025507A2 true WO1999025507A2 (de) | 1999-05-27 |
WO1999025507A8 WO1999025507A8 (de) | 1999-10-28 |
WO1999025507A3 WO1999025507A3 (de) | 1999-12-09 |
Family
ID=7849193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/007304 WO1999025507A2 (de) | 1997-11-19 | 1998-11-16 | Vorrichtung zum herstellen eines werkstückes durch stanzen |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19751238A1 (de) |
WO (1) | WO1999025507A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104096765A (zh) * | 2014-06-24 | 2014-10-15 | 宁波鸿达电机模具有限公司 | 复合落料模中间模芯的互换方法及其设备 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10300818B4 (de) | 2003-01-10 | 2014-05-15 | Groz-Beckert Kg | Stanzwerkzeug, insbesondere für Green Sheets |
DE102004032826B4 (de) | 2004-07-06 | 2010-07-29 | Feintool International Management Ag | Verfahren zum Herstellen von Stanzteilen |
DE102004049149A1 (de) | 2004-10-07 | 2006-04-13 | Feintool International Management Ag | Verfahren und Vorrichtung zum Herstellen und/oder Bearbeitung von Teilen |
DE102006004552B4 (de) * | 2006-01-27 | 2016-06-02 | Michael Hörauf Maschinenfabrik GmbH & Co. KG | Reinigbare Stanzvorrichtung |
DE202014100876U1 (de) * | 2014-02-26 | 2015-05-28 | Smp Deutschland Gmbh | Bearbeitungsvorrichtung zum Stanzen eines Werkstücks |
DE102014205249B4 (de) * | 2014-03-20 | 2017-11-16 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Werkzeug für eine Universalstanzmaschine, Universalstanzmaschine mit einem solchen Werkzeug sowie Verfahren zum Betreiben einer Universalstanzmaschine mit einem solchen Werkzeug |
DE102014007732B4 (de) * | 2014-05-28 | 2017-10-05 | Fritz Stepper Gmbh & Co. Kg | Bearbeitungseinheit für eine Presse und Zentrieradapter für eine Bearbeitungseinheit sowie Verfahren zur Ausrichtung eines Gestelloberteils und eines Gestellunterteils einer Bearbeitungseinheit einer Presse und eine Bearbeitungseinheit verwendende Presse |
FR3077512B1 (fr) * | 2018-02-05 | 2022-05-20 | Psa Automobiles Sa | Installation de decoupe de flans multi-silhouettes |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673908A (en) * | 1971-01-22 | 1972-07-04 | Intern Fineblanking Corp | Quick-change tooling for fineblanking presses |
CH573281A5 (de) * | 1971-10-04 | 1976-03-15 | Gem City Eng Co | |
DE3614121A1 (de) * | 1985-04-30 | 1986-11-06 | Esswein S.A., La Roche-Sur-Yon | Pressvorrichtung mit auswechselbaren werkzeugteilen |
GB2179884A (en) * | 1985-08-07 | 1987-03-18 | Hitachi Ltd | Method of punching a laminate for electrical use |
-
1997
- 1997-11-19 DE DE1997151238 patent/DE19751238A1/de not_active Withdrawn
-
1998
- 1998-11-16 WO PCT/EP1998/007304 patent/WO1999025507A2/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673908A (en) * | 1971-01-22 | 1972-07-04 | Intern Fineblanking Corp | Quick-change tooling for fineblanking presses |
CH573281A5 (de) * | 1971-10-04 | 1976-03-15 | Gem City Eng Co | |
DE3614121A1 (de) * | 1985-04-30 | 1986-11-06 | Esswein S.A., La Roche-Sur-Yon | Pressvorrichtung mit auswechselbaren werkzeugteilen |
GB2179884A (en) * | 1985-08-07 | 1987-03-18 | Hitachi Ltd | Method of punching a laminate for electrical use |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104096765A (zh) * | 2014-06-24 | 2014-10-15 | 宁波鸿达电机模具有限公司 | 复合落料模中间模芯的互换方法及其设备 |
Also Published As
Publication number | Publication date |
---|---|
WO1999025507A8 (de) | 1999-10-28 |
WO1999025507A3 (de) | 1999-12-09 |
DE19751238A1 (de) | 1999-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2760355C2 (de) | ||
EP2036629A1 (de) | Verfahren und Vorrichtung zum Feinschneidern und Umformen eines Werkstücks | |
DE2537865C2 (de) | ||
CH657567A5 (de) | Revolver-stanze. | |
WO1999025507A2 (de) | Vorrichtung zum herstellen eines werkstückes durch stanzen | |
CH665367A5 (en) | Eliminating material burr at edges of press-cut component - by at least one corrective cutting step on step-wise moving metal strip | |
DE3339503A1 (de) | Stanzmaschine und werkzeugsatz fuer stanzmaschinen | |
DE4334417A1 (de) | Preßwerkzeug zum Lochstanzen | |
DE3423543A1 (de) | Presse und verfahren zur herstellung derselben | |
DE3721446A1 (de) | Stanzwerkzeug | |
DE2704246C2 (de) | Pressenkopf mit mehreren Stempeln und Abstreifern | |
CH627965A5 (en) | Punching machine | |
DE4316354C2 (de) | Verfahren und Vorrichtung zum Bruchtrennen von Pleueln | |
DE69910206T2 (de) | Vorrichtung und verfahren zum hochdruckformen von werkstücken | |
DE2556466C2 (de) | Vorrichtung für das Feinstanzen mit festem Stempel | |
EP2638985B1 (de) | Bearbeitungswerkzeug zum Bearbeiten von Blech | |
DE10049701B4 (de) | Verfahren und Vorrichtung zum Markieren von Werkstücken | |
DE2625033A1 (de) | Vorrichtung zum abtrennen eines werkstuecks | |
DE2528208A1 (de) | Stabeisenschere | |
DE1925224A1 (de) | Werkzeugtraeger fuer eine Werkzeugmaschine | |
DE3227696A1 (de) | Folge-verbund-werkzeug | |
EP4116001A1 (de) | Biegewerkzeug, biegepresse, biegeverfahren und werkstück | |
DE19612242A1 (de) | Presse | |
DE7306363U (de) | Stanzgestell | |
DE3614510A1 (de) | Stanzwerkzeughalter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): CA CZ JP PL RU SK US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: C1 Designated state(s): BR CA CN CZ JP KR PL RU SK US |
|
AL | Designated countries for regional patents |
Kind code of ref document: C1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
CFP | Corrected version of a pamphlet front page | ||
CR1 | Correction of entry in section i |
Free format text: PAT. BUL. 21/99 UNDER (81) ADD "BR, CN, KR"; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE |
|
AK | Designated states |
Kind code of ref document: A3 Designated state(s): BR CA CN CZ JP KR PL RU SK US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09554729 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: CA |