EP0064263A2 - Apparatus for forming chamfered holes in sheet material - Google Patents
Apparatus for forming chamfered holes in sheet material Download PDFInfo
- Publication number
- EP0064263A2 EP0064263A2 EP82103583A EP82103583A EP0064263A2 EP 0064263 A2 EP0064263 A2 EP 0064263A2 EP 82103583 A EP82103583 A EP 82103583A EP 82103583 A EP82103583 A EP 82103583A EP 0064263 A2 EP0064263 A2 EP 0064263A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hole
- sheet
- countersunk
- tool
- die
- 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
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/04—Stamping using rigid devices or tools for dimpling
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
- B24B39/023—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution the working tool being composed of a plurality of working rolls or balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
- 1. Verfahren zum Herstellen von Senklöchern in einem - Blech, dadurch gekennzeichnet, dass in dem Blech zunächst ein Loch ausgestanzt wird, dessen Innendurchmesser etwas grösser ist als der gewünschte Innendurchmesser des mit der Senkung versehenen Loches, und dass dann mit einem der Form des gewünschten Senkloches entsprechenden Prägestempel in diesem Stanzloch durch Materialverdrängung das gewünschte Senkloch geprägt wird.1. A process for producing countersunk holes in a - sheet, characterized in that a hole is first punched out in the sheet, the inside diameter of which is somewhat larger than the desired inside diameter of the hole provided with the countersink, and then with one of the shape of the desired one Countersunk hole corresponding embossing stamp is stamped in this punch hole by material displacement, the desired countersunk hole.
- 2. Verfahren zum Herstellen von Passlöchern in einem Blech, dadurch gekennzeichnet, dass in dem Blech zunächst ein Loch ausgestanzt wird, dessen Innendurchmesser etwas kleiner als der gewünschte Innendurchmesser des Passloches gewählt ist, und dann mit einem dem Durchmesser des gewünschten Passloches entsprechenden Prägestempels in diesem Stanzloch durch Materialverdrängung das gewünschte Passloch geprägt wird.2. Method for producing pass holes in a sheet, characterized in that a hole is first punched out in the sheet, the inside diameter of which is selected to be somewhat smaller than the desired inside diameter of the pass hole, and then with an embossing stamp in it corresponding to the diameter of the desired pass hole Punch hole is stamped by material displacement the desired pass hole.
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3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Blech während des Prägevorganges zwischen einer auf der Blechrückseite anliegenden Matrize und einem 'auf der Blechoberseite aufgedrückten Niederhalter so eingeklemmt gehalten ist, dass das Material bei seiner Verdrängung nicht über die Ober- oder Unterseite des Bleches gedrückt wird.3. The method according to
1 or 2, characterized in that the sheet during the embossing process between a die on the back of the sheet and a ' on the B pressed down hold-down is held so that the material is not pressed over the top or bottom of the sheet when displaced.claim -
4. Verfahren nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass der Innendurchmesser des Stanzloches etwa 10 bis 40% grösser als der gewünschte Innendurchmesser des Senkloches gewählt ist.4. The method according to
1 or 3, characterized in that the inner diameter of the punched hole is chosen to be about 10 to 40% larger than the desired inner diameter of the countersunk hole.claim -
5. Verfahren nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Innendurchmesser des Stanzloches etwa 5 bis 10% kleiner als der gewünschte Innendurchmesser des Passloches gewählt ist.5. The method according to
2 or 3, characterized in that the inside diameter of the punched hole is chosen to be about 5 to 10% smaller than the desired inside diameter of the fitting hole.claim - 6. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass während des Prägevorganges dem Prägestempel Schmiermittel zugeführt wird.6. The method according to one or more of the preceding claims, characterized in that lubricant is supplied to the stamping die during the stamping process.
- 7. Werkzeug zum Ausführen eines Verfahrens nach Anspruch 1 bis 6 mittels einer zur Aufnahme von Stanzwerkzeugen geeigneten Presse, insbesondere einer NC-Stanzmaschine, gekennzeichnet durch einen wie bei Stanzmaschinen in einem Niederhalter (5) geführten Stempelhalter (2), an dem ein in seiner Umrissform dem gewünschten Senk- oder Passloch (18,19,20,22) entsprechender und in der Öffnung (12) des Niederhalters (5) geführter Prägestempel (6,23) angebracht ist.7. Tool for carrying out a method according to claim 1 to 6 by means of a press suitable for receiving punching tools, in particular an NC punching machine, characterized by a punch holder (2) guided as in punching machines in a hold-down device (5), on which one in its Contouring die (6,2 3 ) corresponding to the desired countersunk or fitting hole (18, 19, 20, 22) and in the opening (12) of the hold-down device (5) is attached.
-
8. Werkzeug nach Anspruch 7, dadurch gekennzeichnet, dass der Senkloch-Prägestempel (6) mit seinem oberen an den die Senkung prägenden Formabschnitt .(13) anschliessenden Schaft mit engem Spiel in der entsprechend diesem Schaftquerschnitt geformten Niederhalteröffnung (12) geführt ist.8. Tool according to
claim 7, characterized in that the countersunk hole embossing die (6) is guided with its upper shaft, which adjoins the countersinking shaping section (13), with tight play in the hold-down opening (12) shaped according to this shaft cross section. -
9. Werkzeug nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Öffnung (15) der auf der Unterseite vorgesehenen Matrize (7) einen solchen Querschnitt aufweist, dass in ihr der das Loch prägende Formabschnitt .(14) des Senkloch-Prägestempels (6) mit geringem Spiel geführt ist.9. Tool according to
7 or 8, characterized in that the opening (15) of the die (7) provided on the underside has a cross section such that the shaped section (14) of the countersunk hole embossing die (6 ) is performed with little play.claim -
10. Werkzeug nach Anspruch 7 bis 9, dadurch gekennzeichnet, dass der Passloch-Prägestempel (23) mit engem Spiel in der Niederhalteröffnung.(12) geführt ist.10. Tool according to
claim 7 to 9, characterized in that the pass hole embossing stamp (23) is guided with tight play in the hold-down opening (12). -
11. Werkzeug nach Anspruch 10, dadurch gekennzeichnet, dass der Rand des Passloch-Prägestempels (23) abgerundet ist.11. Tool according to
claim 10, characterized in that the edge of the pass hole punch (23) is rounded. - 12. Werkzeug zum Ausführen eines Verfahrens nach Anspruch 1 bis 6 mittels einer zur Aufnahme eines oberen Stanzwerkzeuges und eines unteren Gegenwerkzeuges geeigneten Presse, insbesondere einer NC-Stanzmaschine, dadurch gekennzeichnet, dass das Gegenwerkzeug einen feststehenden und in seiner Umrissform dem gewünschten Senk- oder Passloch (18,19,20,22) entsprechenden Prägestempel mit zugehörigem nachgiebigen Abstreifer aufweist und der Niederhalter des oberen Stanzwerkzeuges als Matrize ausgebildet ist.12. Tool for carrying out a method according to claim 1 to 6 by means of a press suitable for receiving an upper punching tool and a lower counter-tool, in particular an NC punching machine, characterized in that the counter-tool has a fixed and in its outline shape the desired countersunk or fitting hole (18, 19, 20, 22) has the corresponding stamp with associated flexible stripper and the hold-down device of the upper punching tool is designed as a die.
-
13. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 6 bis 12, dadurch gekennzeichnet, dass zum beidseitigen Ausformen einer Senkung sowohl am oberen Stanzwerk-, zeug als auch am unteren Gegenwerkzeug ein in seiner Umrissform dem gewünschten Senkloch entsprechender Prägestempel vorgesehen ist. 1 3. A tool according to one or more of the preceding
claims 6 to 12, characterized in that for double-sided molding a reduction in both the upper Stanzwerk-, imaging as well as in its U mrissform the desired corresponding countersunk hole die provided at the lower counter tool a. -
14. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 13, dadurch gekennzeichnet, dass die Oberseite der Matrize (7) bzw. des als Matrize wirkenden Stempelhalters in Richtung Prägestempel (6,23) leicht gewölbt ist.14. Tool according to one or more of the preceding
claims 7 to 13, characterized in that the upper side of the die (7) or of the die holder acting as die is slightly curved in the direction of the die (6, 23). -
15. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 14, dadurch gekennzeichnet, dass der Niederhalter (5)wie bei Stanzwerkzeugen über ein Federelement (3) derart mit dem Stempelhalter (2) zusammenwirkt, dass der Niederhalter (5) während des Prägevorganges mit einer durch das Federelement (3) bestimmten Kraft auf der Blechoberseite angepresst gehalten ist.15. Tool according to one or more of the preceding
claims 7 to 14, characterized in that the hold-down device (5) cooperates with the punch holder (2) in such a way as with punching tools via a spring element (3) that the hold-down device (5) during the stamping process is held pressed with a force determined by the spring element (3) on the upper side of the sheet. -
16. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 15, dadurch gekennzeichnet, dass der Rand der Niederhalteröffnung (12) und/oder der Matrizenöffnung (15) scharfkantig ausgebildet ist.16. Tool according to one or more of the preceding
claims 7 to 15, characterized in that the edge of the hold-down opening (12) and / or the die opening (15) is formed with sharp edges. -
17. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 16, dadurch gekennzeichnet, dass die Absenktiefe des Stempelhalters (2) einstellbar ist.17. Tool according to one or more of the preceding
claims 7 to 16, characterized in that the lowering depth of the punch holder (2) is adjustable. -
18. Prägewerkzeug zur Verwendung bei NC-Stanzmaschinen insbesondere nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 17, dadurch . gekennzeichnet, dass an dem mit dem Pressenstössel (10) zusammenwirkenden Ende des Stempelhalters (2) eine Einstellschraube- (1) mit zugehöriger Einstellskala angebracht ist.18. embossing tool for use in NC punching machines in particular according to one or more of the preceding
claims 7 to 17, characterized. characterized in that an adjusting screw (1) with an associated adjusting scale is attached to the end of the punch holder (2) which interacts with the press ram (10). -
19. Werkzeug nach einem oder mehreren der vorhergehenden Ansprüche 7 bis 18, dadurch gekennzeichnet, dass im Stempelhalter (2) und/oder Abstreifer (5) ein Kanal (24,25) zum Zuführen von Schmieröl zum Prägestempel (6,23) ausgebildet ist.19. Tool according to one or more of the preceding
claims 7 to 18, characterized in that a channel (24, 25) for supplying lubricating oil to the stamping die (6, 23) is formed in the punch holder (2) and / or wiper (5) .
Claims (21)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3116765 | 1981-04-28 | ||
DE19813116765 DE3116765C1 (en) | 1981-04-28 | 1981-04-28 | Tool for making countersunk holes or pass holes in a sheet on a punching machine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0064263A2 true EP0064263A2 (en) | 1982-11-10 |
EP0064263A3 EP0064263A3 (en) | 1983-06-22 |
EP0064263B1 EP0064263B1 (en) | 1986-07-23 |
Family
ID=6130965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19820103583 Expired EP0064263B1 (en) | 1981-04-28 | 1982-04-27 | Apparatus for forming chamfered holes in sheet material |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0064263B1 (en) |
CH (1) | CH655873A5 (en) |
DE (1) | DE3116765C1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0610925A1 (en) * | 1993-02-10 | 1994-08-17 | ITT Automotive Europe GmbH | Frustroconical hole shaped without cutting |
DE19602360A1 (en) * | 1996-01-24 | 1997-07-31 | Teves Gmbh Alfred | Orifice for motor vehicle brake circuit pressure regulator |
FR2870145A1 (en) * | 2004-05-11 | 2005-11-18 | Ferco Int Usine Ferrures | Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides |
DE102006018847A1 (en) * | 2006-04-22 | 2007-10-31 | E. Winkemann Gmbh & Co. Kg | Stamping apparatus for forming hole with small diameter-length ratio in strip-like sheet metal, by forming through-hole using punch followed by forming die with recessing profile |
US8191452B2 (en) * | 2003-01-10 | 2012-06-05 | Groz-Beckert Kg | Device for punching green sheets |
US8327765B2 (en) | 2003-03-03 | 2012-12-11 | Schott Ag | Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing |
US8733250B2 (en) | 2006-01-27 | 2014-05-27 | Schott Ag | Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device |
US9423218B2 (en) | 2010-09-17 | 2016-08-23 | Schott Ag | Method for producing a ring-shaped or plate-like element |
US10684102B2 (en) | 2010-09-17 | 2020-06-16 | Schott Ag | Method for producing a ring-shaped or plate-like element |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009037845A1 (en) | 2009-08-18 | 2011-04-14 | Fresenius Medical Care Deutschland Gmbh | Disposable element, system for pumping and method for pumping a liquid |
DE102014103975B4 (en) * | 2014-03-24 | 2018-12-20 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Method, punching tool and leveling tool for the production of countersunk holes in a plate-shaped material |
CN111729967A (en) * | 2020-06-16 | 2020-10-02 | 深圳市亿和精密科技集团有限公司 | Stamping die-based salad hole punching method and device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB151183A (en) * | 1919-11-28 | 1920-09-23 | Gunnar Mattsson | Improvements in or relating to a process of producing cylindrical holes having an exact diameter |
DE360252C (en) * | 1922-09-30 | Schiess Akt Ges Maschf | Lubricating device for punching machines u. like | |
GB511106A (en) * | 1938-09-21 | 1939-08-14 | Blackburn Aircraft Ltd | Improvements in or relating to the riveting of metal plates |
US2483799A (en) * | 1945-06-26 | 1949-10-04 | Glenn L Martin Co | Dimpling tool |
FR998229A (en) * | 1949-08-26 | 1952-01-16 | Hurcal Engineering Company Ltd | Method and device for forming holes in metal having a housing for a flooded head |
US3442110A (en) * | 1965-08-12 | 1969-05-06 | Budd Co | Method and apparatus for making holes with cold-worked margins and the product |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE474353C (en) * | 1928-03-23 | 1929-03-30 | Simonswerk Gmbh | Device for pressing over the entire thickness of the plate-shaped work piece continuous sloping walls on the outside or in openings |
FR2308440A1 (en) * | 1975-04-21 | 1976-11-19 | Ferco Int Usine Ferrures | Countersink for sheet metal circular holes - has oversize pilot hole drilled or punched and countersink produced by deforming hole edges |
JPS52132490A (en) * | 1976-04-30 | 1977-11-07 | Yoshitaka Nakanishi | Method of sinking counter sink in plate blank |
-
1981
- 1981-04-28 DE DE19813116765 patent/DE3116765C1/en not_active Expired - Lifetime
-
1982
- 1982-04-27 CH CH255982A patent/CH655873A5/en not_active IP Right Cessation
- 1982-04-27 EP EP19820103583 patent/EP0064263B1/en not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE360252C (en) * | 1922-09-30 | Schiess Akt Ges Maschf | Lubricating device for punching machines u. like | |
GB151183A (en) * | 1919-11-28 | 1920-09-23 | Gunnar Mattsson | Improvements in or relating to a process of producing cylindrical holes having an exact diameter |
GB511106A (en) * | 1938-09-21 | 1939-08-14 | Blackburn Aircraft Ltd | Improvements in or relating to the riveting of metal plates |
US2483799A (en) * | 1945-06-26 | 1949-10-04 | Glenn L Martin Co | Dimpling tool |
FR998229A (en) * | 1949-08-26 | 1952-01-16 | Hurcal Engineering Company Ltd | Method and device for forming holes in metal having a housing for a flooded head |
US3442110A (en) * | 1965-08-12 | 1969-05-06 | Budd Co | Method and apparatus for making holes with cold-worked margins and the product |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0610925A1 (en) * | 1993-02-10 | 1994-08-17 | ITT Automotive Europe GmbH | Frustroconical hole shaped without cutting |
DE19602360A1 (en) * | 1996-01-24 | 1997-07-31 | Teves Gmbh Alfred | Orifice for motor vehicle brake circuit pressure regulator |
US8191452B2 (en) * | 2003-01-10 | 2012-06-05 | Groz-Beckert Kg | Device for punching green sheets |
US8327765B2 (en) | 2003-03-03 | 2012-12-11 | Schott Ag | Metal fixing material bushing and method for producing a base plate of a metal fixing material bushing |
FR2870145A1 (en) * | 2004-05-11 | 2005-11-18 | Ferco Int Usine Ferrures | Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides |
US8733250B2 (en) | 2006-01-27 | 2014-05-27 | Schott Ag | Metal-sealing material-feedthrough and utilization of the metal-sealing material feedthrough with an airbag, a belt tensioning device, and an ignition device |
DE102006018847A1 (en) * | 2006-04-22 | 2007-10-31 | E. Winkemann Gmbh & Co. Kg | Stamping apparatus for forming hole with small diameter-length ratio in strip-like sheet metal, by forming through-hole using punch followed by forming die with recessing profile |
DE102006018847B4 (en) * | 2006-04-22 | 2010-04-01 | E. Winkemann Gmbh & Co. Kg | Method and apparatus for punching a hole of small diameter to length ratio |
US9423218B2 (en) | 2010-09-17 | 2016-08-23 | Schott Ag | Method for producing a ring-shaped or plate-like element |
US9651345B2 (en) | 2010-09-17 | 2017-05-16 | Schott Ag | Method for producing a ring-shaped or plate-like element |
US10684102B2 (en) | 2010-09-17 | 2020-06-16 | Schott Ag | Method for producing a ring-shaped or plate-like element |
Also Published As
Publication number | Publication date |
---|---|
CH655873A5 (en) | 1986-05-30 |
DE3116765C1 (en) | 1990-10-04 |
EP0064263B1 (en) | 1986-07-23 |
EP0064263A3 (en) | 1983-06-22 |
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