EP1189745A2 - VORRICHTUNG ZUM FEINSCHNEIDEN VON WERKSTüCKEN AUS EINEM WERKSTOFF - Google Patents
VORRICHTUNG ZUM FEINSCHNEIDEN VON WERKSTüCKEN AUS EINEM WERKSTOFFInfo
- Publication number
- EP1189745A2 EP1189745A2 EP00947859A EP00947859A EP1189745A2 EP 1189745 A2 EP1189745 A2 EP 1189745A2 EP 00947859 A EP00947859 A EP 00947859A EP 00947859 A EP00947859 A EP 00947859A EP 1189745 A2 EP1189745 A2 EP 1189745A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- compensation
- piston
- cutting
- ring
- 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
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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
- Y10T83/5669—Work clamp
- Y10T83/5787—Clamp driven by yieldable means
- Y10T83/5805—Fluid pressure yieldable drive means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8858—Fluid pressure actuated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
- Y10T83/9425—Tool pair
Definitions
- the invention relates to a device for fine cutting workpieces made of a material with a press plate under the pressure of a ring prong cylinder with a ring prong and a cutting die guided in the press plate, to which a cutting plate with a counterholder (ejector) is assigned on a ram.
- a fineblanking tool essentially consists of a press plate with a ring spike in which a cutting punch is guided. Opposite the cutting punch is assigned a counterholder or ejector in a cutting plate. A workpiece, for example a metal sheet, is inserted between the press plate and the cutting punch or the cutting plate and counter-holder. The upper and lower parts of the tool are closed and the material is clamped inside and outside the cutting line by means of a ring spike and counterforce. Pressing plate and cutting plate are guided relative to the cutting punch and counterholder, thus cutting out the workpiece from the material. After cutting out, the tool is opened and the workpiece is usually ejected from the cutting plate using the counterholder.
- the force of the ring-toothed cylinder which is usually arranged in the upper crosshead of the machine stand, counteracts the cutting force.
- the counterholder cylinder which is integrated in the ram or in the working piston, also presses the workpiece against the upper part of the tool, the counterholder support force also counteracts the cutting force.
- the counter force of the ring prong cylinder can be up to 50% and that of the counter holder up to 25% of the work force. But this significantly reduces the performance of the entire device.
- DE 196 42 635 AI proposes that ring-toothed and counter-holder cylinders be arranged in a modified manner, the ring-toothed cylinder being integrated in a separate crossbar above the stand and connected to the plunger via columns, so that it is synchronous with the plunger moved up.
- the counter-holder cylinder is in turn arranged between the plunger and a lower crosshead of the stand, no relative movement taking place between the counter-holder cylinder and the stand during the working stroke, so that the Counterholder cylinder support forces are absorbed by the machine stand.
- the present invention has for its object to provide a device of the type mentioned above, in which the ring tooth cylinder force is compensated in a simple manner and the structure of which is considerably simplified.
- the plunger is supported against at least one compensation cylinder which is hydraulically connected to the ring-toothed cylinder.
- the compensation cylinder is designed so that it is in hydraulic equilibrium with the ring-toothed cylinder. This means that the compensating cylinder absorbs and compensates the ring-toothed cylinder force with each key stroke, so that it has no influence on the actual key stroke.
- the counterforce generated by the compensation cylinders should be appropriate distribute several compensation cylinders.
- four compensation cylinders are envisaged, however, depending on the press and embodiment, more or fewer compensation cylinders are possible.
- the compensation cylinder is firmly connected to the plunger via a piston rod on a piston. It is exposed to the same pressure as a piston in the ring-toothed cylinder, the easiest way to establish this pressure equilibrium is that an effective cross-sectional area of the compensation piston corresponds to the effective cross-sectional area of the rag-toothed cylinder. As a result, no additional pressure supply elements are required to maintain the same pressures on both pistons. It is sufficient if the two working spaces of the ring-point cylinder and the compensation cylinder are hydraulically connected to one another via a line. The equal-sized cross-sectional areas of the pistons then exert an equal-sized pressure on the press plate or the cutting plate or the plunger.
- the ring-toothed cylinder is arranged on a crosshead of the machine frame, so that an additional traverse is not required. This means that the mass moved during a ram stroke is significantly lower, so that the energy consumption per stroke and the weight of the machine can be kept significantly lower. No additional connecting frame (crossbeam) is required, so that the construction is much simpler and cheaper.
- an oil tank can be connected to the connection via a corresponding logic valve, so that a briefly required high amount of oil can be sucked in from the oil tank via the logic valve can.
- a fem cutting tool 8 is provided, as is generally known.
- a fem cutting tool 8 is provided, as is generally known.
- Such a fineblanking tool 8 has a cutting die 9 which is guided in a press plate 10.
- This press plate 10 has a ring spike 11 for the sheet 1 hm.
- the press plate 10 is supported against an annular prong piston 12 in an Rmgzackenzylmder 13.
- the Rmgzackenzylmder 13 is located in a corresponding housing 14 on the crosshead 3, wherein the ring-point piston 12 is connected via a piston rod 15 and various pressure plates and plungers, not identified in more detail, through the crosshead 3 to the press plate 10.
- the die 9 is assigned a counterholder 16, which can also serve as an ejector.
- the hydraulics for pressurizing this counter-holder 16 will not be described in more detail here. A description can be found in the above manual.
- the counter holder 16 is guided in a cutting plate 17, the cutting punch 9 pushing the workpiece to be cut out into this cutting plate 17, the counter holder 16 evading.
- the stroke of the plunger 7 in the direction of the double arrow 18 is effected via two master cylinders 19.1 and 19.2, in each of which a piston 20.1 and 20.2 is guided. Each piston 20.1 and 20.2 is firmly connected to the plunger 7 via a piston rod 21.1 and 21.2.
- the tappet 7 is also supported against preferably four compensation cylinders 22, only one of which is described below.
- a compensation piston 23 is guided, which in turn is firmly connected to the plunger 7 via a piston rod 24.
- the compensation piston or pistons 23 has an effective cross-sectional area which corresponds to that of the ring-toothed piston 12.
- the Rmgzackenzylmder 13 and the Kompensationszylmder 22 are coupled to one another via a hydraulic connection 25.
- An oil tank, not shown, can be connected into this hydraulic connection 25 via a further connection 26 and a logic valve 27.
- the two master cylinders 19.1 and 19.2 are connected to one another and via an valve 28 to an oil tank (not shown in more detail).
- the plunger 7 is raised by means of the two master cylinders 19.1 and 19.2, the sheet metal 1 being clamped between the cutting plate 17 and the pressing plate 10.
- the ring prong 11 prints itself in the sheet 1 em.
- the forces emanating from the toothed cylinder 13 are neutralized by the compensating cylinder 22, since their pistons together have the same effective cross-sectional area as the ring-toothed cylinder piston 12.
- the cutting punch 9 prints the workpiece to be cut into the cutting plate 17, the counter-holder 16 giving way.
- the machine opens and the counter-holder 16 can eject the workpiece from the cutting plate 17.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Disintegrating Or Milling (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Punching Or Piercing (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19929163 | 1999-06-25 | ||
DE19929163A DE19929163C1 (de) | 1999-06-25 | 1999-06-25 | Vorrichtung zum Feinschneiden von Werkstücken aus einem Blech |
PCT/EP2000/005681 WO2001000396A2 (de) | 1999-06-25 | 2000-06-20 | VORRICHTUNG ZUM FEINSCHNEIDEN VON WERKSTüCKEN AUS EINEM WERKSTOFF |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1189745A2 true EP1189745A2 (de) | 2002-03-27 |
EP1189745B1 EP1189745B1 (de) | 2003-02-26 |
Family
ID=7912526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00947859A Expired - Lifetime EP1189745B1 (de) | 1999-06-25 | 2000-06-20 | Vorrichtung zum feinschneiden von werkstücken aus einem werkstoff |
Country Status (8)
Country | Link |
---|---|
US (1) | US7806031B1 (de) |
EP (1) | EP1189745B1 (de) |
JP (1) | JP2003503208A (de) |
CN (1) | CN1455712A (de) |
AT (1) | ATE233176T1 (de) |
AU (1) | AU6151000A (de) |
DE (2) | DE19929163C1 (de) |
WO (1) | WO2001000396A2 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10005023C2 (de) * | 2000-02-04 | 2002-11-21 | Feintool Internat Holding Ag L | Feinschneidpresse |
DE102004006126B4 (de) * | 2004-02-07 | 2006-12-28 | Horst Baltschun | Presse mit verriegeltem Stößel |
CN100382912C (zh) * | 2004-03-26 | 2008-04-23 | 鸿富锦精密工业(深圳)有限公司 | 板金冲裁工艺 |
JP4899864B2 (ja) | 2004-04-09 | 2012-03-21 | トヨタ紡織株式会社 | せん断加工装置 |
DE102004049149A1 (de) | 2004-10-07 | 2006-04-13 | Feintool International Management Ag | Verfahren und Vorrichtung zum Herstellen und/oder Bearbeitung von Teilen |
PT2042249E (pt) * | 2007-09-26 | 2010-06-07 | Feintool Ip Ag | Processo e dispositivo para fabrico de peças estampadas com grande superfície funcional e de corte bastante lisa |
JP2011045899A (ja) * | 2009-08-26 | 2011-03-10 | Showa Seiko Kk | 精密塑性加工方法及び精密塑性加工装置 |
ES2372377B2 (es) | 2010-06-25 | 2012-10-25 | Fineblanking Press Systems, S.L. | Prensa de estampación. |
CN101890450A (zh) * | 2010-06-30 | 2010-11-24 | 上海理工大学 | 数控充液拉深液压机 |
CN102107242A (zh) * | 2010-12-07 | 2011-06-29 | 苏州和林精密科技有限公司 | 一种物料防脱落式冲料设备 |
EP2608299B1 (de) * | 2011-12-22 | 2014-04-09 | Feintool Intellectual Property AG | Verfahren und Vorrichtung zum Herstellen von metallischen Bipolarplatten |
DE102013015180A1 (de) * | 2013-09-11 | 2015-03-12 | Webo Werkzeugbau Oberschwaben Gmbh | Verfahren und Vorrichtung zum Präzisionsschneiden von Werkstücken in einer Presse |
US10016803B2 (en) * | 2014-05-09 | 2018-07-10 | Honda Motor Co., Ltd. | Blanking die and method of blanking sheet metal therewith |
CN104722633B (zh) * | 2015-03-16 | 2017-05-31 | 天津太平洋超高压设备有限公司 | 浅波纹金属板片压冲式液压机 |
DE102015016102A1 (de) * | 2015-12-11 | 2017-06-14 | Schuler Pressen Gmbh | Feinschneidpresse |
CN107127821A (zh) * | 2017-05-26 | 2017-09-05 | 新昌县奇鹏自动化设备有限公司 | 一种液压控制的双模式打孔机 |
CN109366549A (zh) * | 2018-10-18 | 2019-02-22 | 湖州锐舰机械科技有限公司 | 一种汽车密封条加工装置 |
DE202019000468U1 (de) * | 2019-02-01 | 2019-02-22 | WISTA Werkzeugfertigungs-GmbH | Stanz-/Perforiermaschine |
EP3736061A1 (de) * | 2019-05-06 | 2020-11-11 | Lapmaster Wolters GmbH | Feinschneidesystem und verfahren zum betreiben desselben |
DE102019124366A1 (de) * | 2019-09-11 | 2021-03-11 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Rüstvorrichtung sowie Verfahren zum Rüsten eines Werkzeuges zum Stanzen oder Umformen von plattenförmigen Materialien |
US11506559B2 (en) * | 2020-12-28 | 2022-11-22 | Metal Industries Research&Development Centre | Service life testing device for pressure sensor and testing method using same |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2092092A (en) * | 1932-12-01 | 1937-09-07 | Sinclair Harold | Power press tool or the like |
US3570343A (en) * | 1968-10-18 | 1971-03-16 | Dro Systems Inc Di | Structure for fine blanking |
CH491695A (de) * | 1968-11-21 | 1970-06-15 | Aida Tekkosho Kk | Feinschnittpresse |
US3673908A (en) * | 1971-01-22 | 1972-07-04 | Intern Fineblanking Corp | Quick-change tooling for fineblanking presses |
CH551812A (de) * | 1972-03-03 | 1974-07-31 | Hydrel Ag | Feinstanzpresse. |
JPS5310309B2 (de) * | 1972-03-06 | 1978-04-12 | ||
US3827328A (en) * | 1972-12-26 | 1974-08-06 | Greenerd Press & Machine Co In | Control system for hydraulic presses |
AU467285B2 (en) * | 1973-05-10 | 1975-11-10 | Hydrel Ag | Precision stamping press |
DE2739340A1 (de) * | 1977-09-01 | 1979-03-15 | Smg Sueddeutsche Maschinenbau | Hydraulisch angetriebene presse |
JPS5945450B2 (ja) * | 1981-04-20 | 1984-11-06 | 猛 大島 | 汎用プレス機によるフアインブランキング加工装置 |
JPS60244500A (ja) * | 1984-05-18 | 1985-12-04 | Aida Eng Ltd | 騒音及び振動を抑制する液圧プレス |
CH669748A5 (de) * | 1984-11-28 | 1989-04-14 | Feintool Int Holding | |
NL8902274A (nl) * | 1989-09-12 | 1991-04-02 | Brouwer & Co Machine | Ponsmachine. |
JP3319786B2 (ja) * | 1992-09-02 | 2002-09-03 | 株式会社小松製作所 | プレスのブレークスルー緩衝装置およびその制御方法 |
DE4338197C1 (de) * | 1993-11-09 | 1995-01-19 | Schmidt Maschinenbau Gmbh | Schnittwerkzeug |
JP2548508B2 (ja) * | 1993-11-17 | 1996-10-30 | 日清紡績株式会社 | 液圧プレス装置 |
FI100648B (fi) * | 1995-12-14 | 1998-01-30 | Balaxman Oy | Levytyökeskus |
US5749279A (en) * | 1996-03-20 | 1998-05-12 | General Motors Corporation | Hydraulic punch actuator with centering apparatus |
DE19642635A1 (de) * | 1996-03-28 | 1997-10-02 | Horst Baltschun | Feinschneidpresse mit hydraulisch gekoppeltem Ringzacken- und Gegenhalterzylinder |
-
1999
- 1999-06-25 DE DE19929163A patent/DE19929163C1/de not_active Expired - Fee Related
-
2000
- 2000-06-20 AU AU61510/00A patent/AU6151000A/en not_active Withdrawn
- 2000-06-20 DE DE50001335T patent/DE50001335D1/de not_active Expired - Lifetime
- 2000-06-20 AT AT00947859T patent/ATE233176T1/de active
- 2000-06-20 US US10/018,609 patent/US7806031B1/en not_active Expired - Fee Related
- 2000-06-20 CN CN00809361A patent/CN1455712A/zh active Pending
- 2000-06-20 EP EP00947859A patent/EP1189745B1/de not_active Expired - Lifetime
- 2000-06-20 WO PCT/EP2000/005681 patent/WO2001000396A2/de active IP Right Grant
- 2000-06-20 JP JP2001506085A patent/JP2003503208A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO0100396A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN1455712A (zh) | 2003-11-12 |
WO2001000396A2 (de) | 2001-01-04 |
AU6151000A (en) | 2001-01-31 |
WO2001000396A3 (de) | 2001-05-31 |
EP1189745B1 (de) | 2003-02-26 |
ATE233176T1 (de) | 2003-03-15 |
JP2003503208A (ja) | 2003-01-28 |
DE50001335D1 (de) | 2003-04-03 |
DE19929163C1 (de) | 2001-01-18 |
US7806031B1 (en) | 2010-10-05 |
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