EP0893178A2 - Stanz-Prägewerkzeug - Google Patents
Stanz-Prägewerkzeug Download PDFInfo
- Publication number
- EP0893178A2 EP0893178A2 EP98112948A EP98112948A EP0893178A2 EP 0893178 A2 EP0893178 A2 EP 0893178A2 EP 98112948 A EP98112948 A EP 98112948A EP 98112948 A EP98112948 A EP 98112948A EP 0893178 A2 EP0893178 A2 EP 0893178A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- pressure
- rivet
- cylinder
- stamping
- 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
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
- B21J15/025—Setting self-piercing rivets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/16—Drives for riveting machines; Transmission means therefor
- B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
-
- 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
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
- Y10T29/53061—Responsive to work or work-related machine element
- Y10T29/53065—Responsive to work or work-related machine element with means to fasten by deformation
-
- 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
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53709—Overedge assembling means
- Y10T29/5377—Riveter
Definitions
- the invention relates to a stamping and embossing tool according to the preamble of claim 1.
- Such stamping and embossing tools are used to connect two parts to be joined, preferably Sheets using a rivet.
- Such rivets have a rivet head and a groove on the shaft
- the two are placed on an anvil Joined parts are pressed together by a spring-loaded hold-down device, whereupon the rivet needle presses the rivet into the parts to be joined, and in the process punching slugs from the Parts to be punched out.
- the rivet head With the further downward movement of the rivet needle the rivet head is pressed into the punched-out part of the upper part.
- a stamp of the edge of the anvil's hole is printed in the lower part, the displaced material penetrating into the shaft groove.
- the pressure exerted by the spring-loaded hold-down device is often not sufficient to press the two joining parts against one another without a gap, which is particularly the case with hard and thick sheet metal is the case.
- the strength of the riveted joints is therefore differently.
- the same disadvantage occurs when the parts to be joined are different Show tolerances. Since the movement of the ram is controlled away, must Thickness tolerances can be compensated for by adjusting the height of the anvil.
- the task is to design the stamping and embossing tool so that it is flawless Rivet connection between the parts to be joined is achieved.
- the stamping and embossing tool has a hydraulic cylinder 1, in which two pistons 2, 3 are guided.
- the rivet needle 4 is connected to the upper piston 2, while with the lower piston 3, a press cylinder 5 is connected, which in Fig. 1st press ram, not shown.
- With the upper piston 2 is still connected a hollow piston rod 6.
- the piston 2 has bores 7, which the space 8th Connect between pistons 2, 3 to the inside of piston rod 6.
- the cylinder 1 has a connection 9 which opens into the cylinder space above the piston 2.
- the inside of the piston rod 6 is connected to a further connection 10, while the cylinder space below the piston 3 is connected to a third connection 11.
- a first pressure cylinder 12 Connected to port 9 is a first pressure cylinder 12 with which another Printing cylinder 13 can be connected, with which in turn a third printing cylinder 14 is connectable.
- the connection 10 is connected to an adjustable throttle 15, the is in turn connected to a variable-volume pressure chamber 16.
- the sequence of operations is as follows:
- the piston 17 of the pressure cylinder 14 is initially himself in his left position. Take the pistons 18 and 19 of the pressure cylinders 12, 13 their right position as shown. This creates a hydraulic connection from the impression cylinder 14 via the impression cylinder 13 and the impression cylinder 12 to Connection 9.
- the throttle 15 is open, so that a direct connection between the Space 8, the holes 7, the hollow piston rod 6, the connection 10, the throttle 15th to the left side of the piston 20 of the pressure chamber 16. To the right side of the Piston 20 acts at a constant pressure.
- the piston 2 has approached the piston 3 by a predetermined distance, which is greater than the length of the rivet, the pressure cylinder 12 is activated by Compressed air supply at port 23 of piston 18 is moved to the left. At this Movement, the connection between the cylinders 12, 13 is interrupted. From Pressure cylinder 12, oil is supplied to port 9 under high pressure. With Actuation of the pressure cylinder 12, the throttle 15 is activated, so that between the throttle resistor 10 and the pressure chamber 16 are built up. This throttle resistance is adjustable.
- the piston 3 thus has a high resistance, but due to the throttle resistance adjustable pressure, which causes the ram 25 attached to the press cylinder 5 exerts a high hold-down force on the joining parts 24A, 24B, which is thus gap-free lie against each other, see position according to Fig. 3.
- the rivet 29 of the Rivet needle 4 pressed through the joining parts 24A, 24B and the rivet head into the generated Bore of the upper joining part 24A, see position according to FIG. 4.
- the pistons 17, 18, 19 are returned to their starting position.
- the throttle 15 will be opened.
- the oil pressure in the pressure chamber 16 separates the two pistons 2, 3 from one another.
- a pressure is built up below the piston 3 via the connection 11, so that both pistons 2, 3 are returned to their starting position.
- the hydraulic cylinder 1 is connected to the tool frame via a C-bracket 23 is.
- the tool head comprises the rivet needle 4 and the ram 25, the one Has bore through which the rivet needle 4 is displaceable.
- the ram 25 is attached to the press cylinder 5.
- At the lower end of the rivet needle 4 is a Flanged valve body 30, the slide of the rivet 29 the lower end of the Rivet needle 4 feeds.
- the press ram 25 has the function of a hold-down device.
- the to each other connecting joining parts are designated with 24A and 24B. They are on anvil 26 on this anvil 26 is provided with a bore 27 which is formed by an embossing lip 28 is surrounded.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Ink Jet (AREA)
- Forging (AREA)
Abstract
Description
Claims (7)
- Stanz-Prägewerkzeug mit einer in einer Bohrung eines Preßstempels (25) verschiebbaren Nietnadel (4) zum Verbinden von Fügeteilen (24a, 24B) mittels eines Niets (29), bei dem bei der Abwärtsbewegung der Nietnadel (4) der Niet (29) in die Fügeteile (24A, 24B) gedruckt wird und sodann der Preßstempel (25) eine Prägekraft erzeugt, durch welche ein Amboß (26) eine Verformung des Materials des auf dem Amboß (26) aufliegenden Fügeteils (24B) bewirkt, wodurch Material in die Schaftnut des Niets (29) gedrückt wird, dadurch gekennzeichnet, daß ein Hydraulikzylinder (1) mit zwei Kolben (2, 3) vorgesehen ist, der eine Kolben (2) die Nietnadel (4) der andere Kolben (3) den Preßstempel (5, 25) trägt, der Raum (8) zwischen den Kolben (2, 3) mit einem volumenveränderlichen Druckraum (16) verbindbar ist, der zylinderraum, der dem einen Kolben (2) zugewandt ist, mit einem Druckzylinder (12) verbunden ist, und eine Steuerung vorgesehen ist, die, nachdem ein Niet (29) unter die Nietnadel (4) zugeführt wurde und bei auf dem oberen Fügeteil (24A) aufsitzenden Preßstempel (25) den einen Druckzylinder (12) aktiviert und eine Drossel (15) zwischen dem Raum (8) zwischen den Kolben (2, 3) und dem Druckraum (16) zwischenschaltet und hierbei zur Ausführung des Stanzvorgangs und zur Ausübung einer Niederhaltekraft durch den Preßstempel (25) der Druck des Druckzylinders (12) den einen Kolben (2) in Richtung des anderen Kolbens (3) druckt, bis, zur Ausführung des Prägevorgangs, der eine Kolben (2) auf dem anderen Kolben (3) aufliegt.
- Stanz-Prägewerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß der Drosselwiderstand der Drossel (15) einstellbar ist.
- Stanz-Prägewerkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der eine Kolben (2) eine hohle Kolbenstange (6) aufweist, die mit der Drossel (15) verbunden ist und in welcher Bohrungen (7) durch diesen einen Kolben (2) münden, die zum Raum (8) zwischen den Kolben (2, 3) führen.
- Stanz-Prägewerkzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß ein weiterer Druckzylinder (13) vorgesehen ist, der mit dem Zylinderraum verbindbar ist, der dem einen Kolben (2) zugewandt ist, der einen Druck erzeugt, der geringer ist als derjenige des einen Druckzylinders (12), jedoch größer ist als derjenige im Druckraum (16) und bei dessen Aktivierung der eine Kolben (2) in Richtung des anderen Kolbens (3) gedrückt wird, bis die Kolben (2, 3) einen vorgegebenen Abstand zueinander aufweisen, worauf dann der Zylinderraum mit dem einen Druckzylinder (12) verbunden wird.
- Stanz-Prägewerkzeug nach Anspruch 4, dadurch gekennzeichnet, daß ein dritter Druckzylinder (14) vorgesehen ist, der mit dem Zylinderraum verbindbar ist, der dem einen Kolben (2) zugewandt ist, der einen Druck erzeugt, der geringer ist als derjenige im Druckraum (16) und bei dessen Aktivierung beide Kolben (2, 3) in Richtung der Fügeteile (24A, 24B) gedrückt werden, bis der Preßstempel (25) das obere Fügeteil berührt, worauf dann der Zylinderraum mit dem weiteren Druckzylinder (13) verbunden wird.
- Stanz-Prägewerkzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die im Preßstempel (25) geführte Nietnadel (4) eine längs der Nietnadel (4) verlaufende und an eine Unterdruckquelle anschließbare Bohrung aufweist, die an der Spitze der Nietnadel (4) mündet.
- Stanz-Prägewerkzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß im Bereich der Spitze der Nietnadel (4) ein Schiebergehäuse (30) angeordnet ist, in dem ein Schieber quer zur Nietnadel (4) verschiebbar angeordnet ist, der den Niet (29) zu dieser Spitze verschiebt.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29713346U DE29713346U1 (de) | 1997-07-26 | 1997-07-26 | Stanz-Prägewerkzeug |
DE29713346U | 1997-07-26 | ||
DE29716441U | 1997-09-12 | ||
DE29716441U DE29716441U1 (de) | 1997-09-12 | 1997-09-12 | Stanz-Prägewerkzeug |
DE19808016 | 1998-02-26 | ||
DE19808016A DE19808016A1 (de) | 1997-09-12 | 1998-02-26 | Stanz-Prägewerkzeug |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0893178A2 true EP0893178A2 (de) | 1999-01-27 |
EP0893178A3 EP0893178A3 (de) | 2000-08-16 |
EP0893178B1 EP0893178B1 (de) | 2003-04-09 |
Family
ID=27218166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98112948A Expired - Lifetime EP0893178B1 (de) | 1997-07-26 | 1998-07-13 | Stanz-Prägewerkzeug |
Country Status (4)
Country | Link |
---|---|
US (1) | US6041493A (de) |
EP (1) | EP0893178B1 (de) |
CA (1) | CA2243922C (de) |
ES (1) | ES2193444T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055466A2 (de) * | 1999-05-27 | 2000-11-29 | Böllhoff GmbH | Hydraulische Antriebseinrichtung für ein Fügewerkzeug |
DE102006013651B4 (de) * | 2005-10-14 | 2008-09-25 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Werkzeugeinheit und Verfahren zum axialen Verschieben eines Werkzeugkopfes |
CN108099219A (zh) * | 2017-12-20 | 2018-06-01 | 吉林大学 | 一种碳纤维复合材料板与铝合金板之间的粘铆方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10031073B4 (de) * | 2000-06-30 | 2016-11-24 | Gustav Klauke Gmbh | Verfahren zum Vernieten |
US6405421B1 (en) * | 2001-01-03 | 2002-06-18 | Hon Hai Precisionind. Co., Ltd. | Die assembly for riveting |
US6975088B1 (en) * | 2002-11-15 | 2005-12-13 | Automation By Design, Inc. | Automatic dynamic joint tensioning system |
DE102005031917A1 (de) * | 2004-09-24 | 2006-04-13 | Böllhoff Verbindungstechnik GmbH | Verfahren zum Fügen und Vorrichtung zum Betätigen eines Fügewerkzeuges |
US7753230B2 (en) * | 2007-12-20 | 2010-07-13 | Mikio Kusano | Nut feeder |
DE102015000625A1 (de) * | 2014-02-03 | 2015-08-06 | Kiefel Gmbh | Verfahren zum Nieten, Nietwerkzeug, Nietanlage und Airbagbauteil |
CN109454194A (zh) * | 2018-07-27 | 2019-03-12 | 宾科精密部件(中国)有限公司 | 流体压力驱动的压铆装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067272A2 (de) * | 1981-06-13 | 1982-12-22 | MANNESMANN Aktiengesellschaft | Nietvorrichtung |
US4628722A (en) * | 1986-02-14 | 1986-12-16 | Usm Corporation | Setting tool for rivet with pull-headed mandrel |
WO1994014554A1 (en) * | 1992-12-19 | 1994-07-07 | Henrob Limited | Improvements in or relating to self-piercing riveting |
DE19752367A1 (de) * | 1997-11-26 | 1999-05-27 | Emhart Inc | Verfahren und Vorrichtung zur Herstellung einer Stanznietverbindung |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2540942A (en) * | 1948-01-27 | 1951-02-06 | Warren G Grimes | Variable friction gearing |
US3557442A (en) * | 1968-04-02 | 1971-01-26 | Gen Electro Mech Corp | Slug riveting method and apparatus |
US3562893A (en) * | 1968-05-28 | 1971-02-16 | Omark Winslow Co | Apparatus for driving rivets using explosive charge |
GB1287572A (en) * | 1968-09-16 | 1972-08-31 | Avdel Ltd | Blind riveting apparatus |
US3771480A (en) * | 1971-10-27 | 1973-11-13 | Johnson Die & Eng Co | Method and apparatus for extruding a rivet form in a layer of metallic material |
GB1471666A (en) * | 1973-07-19 | 1977-04-27 | Ocean Investments Ltd | Method and fastener for use in joining together an assembly of metal sheets |
US3874070A (en) * | 1973-08-03 | 1975-04-01 | Boeing Co | High fatigue squeeze riveting process and apparatus therefor |
US4126076A (en) * | 1974-06-19 | 1978-11-21 | Rosman Irwin E | Rivet fastener system |
US4091981A (en) * | 1975-08-21 | 1978-05-30 | Hitachi Koki Company, Limited | Power driven percussion tool |
US4515302A (en) * | 1981-12-21 | 1985-05-07 | Gemcor Engineering Corp. | Riveting machine |
DE3532932A1 (de) * | 1985-09-14 | 1987-03-19 | Schwab Maschbau | Nietsetzwerkzeug |
US4744238A (en) * | 1986-07-02 | 1988-05-17 | Senco Products, Inc. | Pneumatic rivet setting tool |
US4726504A (en) * | 1987-03-27 | 1988-02-23 | Senco Products, Inc. | Portable self-piercing riveting apparatus |
US4864713A (en) * | 1988-06-07 | 1989-09-12 | Gemcor Engineering Corp. | Method and apparatus for positioning tooling and riveting |
US5027490A (en) * | 1989-02-22 | 1991-07-02 | Gemcor Engineering Corporation | Apparatus for inserting fasteners |
US4978048A (en) * | 1989-09-18 | 1990-12-18 | Scovill Fasteners Inc. | Fastener setting machine having double-acting drive means |
CZ2272U1 (cs) * | 1993-06-11 | 1994-08-05 | Josef Wihan | Nýtovací nástroj |
-
1998
- 1998-07-13 ES ES98112948T patent/ES2193444T3/es not_active Expired - Lifetime
- 1998-07-13 EP EP98112948A patent/EP0893178B1/de not_active Expired - Lifetime
- 1998-07-27 US US09/123,373 patent/US6041493A/en not_active Expired - Lifetime
- 1998-07-27 CA CA002243922A patent/CA2243922C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0067272A2 (de) * | 1981-06-13 | 1982-12-22 | MANNESMANN Aktiengesellschaft | Nietvorrichtung |
US4628722A (en) * | 1986-02-14 | 1986-12-16 | Usm Corporation | Setting tool for rivet with pull-headed mandrel |
WO1994014554A1 (en) * | 1992-12-19 | 1994-07-07 | Henrob Limited | Improvements in or relating to self-piercing riveting |
DE19752367A1 (de) * | 1997-11-26 | 1999-05-27 | Emhart Inc | Verfahren und Vorrichtung zur Herstellung einer Stanznietverbindung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1055466A2 (de) * | 1999-05-27 | 2000-11-29 | Böllhoff GmbH | Hydraulische Antriebseinrichtung für ein Fügewerkzeug |
EP1055466A3 (de) * | 1999-05-27 | 2002-07-24 | Böllhoff GmbH | Hydraulische Antriebseinrichtung für ein Fügewerkzeug |
DE102006013651B4 (de) * | 2005-10-14 | 2008-09-25 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Werkzeugeinheit und Verfahren zum axialen Verschieben eines Werkzeugkopfes |
CN108099219A (zh) * | 2017-12-20 | 2018-06-01 | 吉林大学 | 一种碳纤维复合材料板与铝合金板之间的粘铆方法 |
CN108099219B (zh) * | 2017-12-20 | 2019-10-22 | 吉林大学 | 一种碳纤维复合材料板与铝合金板之间的粘铆方法 |
Also Published As
Publication number | Publication date |
---|---|
CA2243922C (en) | 2006-09-26 |
ES2193444T3 (es) | 2003-11-01 |
US6041493A (en) | 2000-03-28 |
EP0893178B1 (de) | 2003-04-09 |
CA2243922A1 (en) | 1999-01-26 |
EP0893178A3 (de) | 2000-08-16 |
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