EP0411300B1 - Tool changing device for swaging and kneading machines - Google Patents

Tool changing device for swaging and kneading machines Download PDF

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Publication number
EP0411300B1
EP0411300B1 EP90111835A EP90111835A EP0411300B1 EP 0411300 B1 EP0411300 B1 EP 0411300B1 EP 90111835 A EP90111835 A EP 90111835A EP 90111835 A EP90111835 A EP 90111835A EP 0411300 B1 EP0411300 B1 EP 0411300B1
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EP
European Patent Office
Prior art keywords
tool
dies
hammer
changing apparatus
front cover
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.)
Expired - Lifetime
Application number
EP90111835A
Other languages
German (de)
French (fr)
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EP0411300A3 (en
EP0411300A2 (en
Inventor
Fritz Binhack
Frank Dipl.-Ing. Grau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebr Felss GmbH and Co KG
Original Assignee
Gebr Felss GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gebr Felss GmbH and Co KG filed Critical Gebr Felss GmbH and Co KG
Publication of EP0411300A2 publication Critical patent/EP0411300A2/en
Publication of EP0411300A3 publication Critical patent/EP0411300A3/en
Application granted granted Critical
Publication of EP0411300B1 publication Critical patent/EP0411300B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/16—Forging machines working with several hammers in rotary arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/03—Die mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/085—Accessories for handling work or tools handling of tools

Definitions

  • the invention relates to a tool changing device in rotary hammers and kneaders according to the preamble of claim 1.
  • Rotary hammers and kneaders which operate according to the feed or plunge method, with two or more hammer plungers and jaws as forming tools in a tool guide with a front cover, in particular with jaw feed by wedge insertion.
  • the hammer jaws have so far been changed by hand, which is cumbersome and time-consuming and prevents efficient operation, especially when it comes to smaller series, which requires the tools to be repositioned more often, or for machining workpieces with several Gradations.
  • the tool changing device in rotary hammers and kneaders is characterized in that a swivel or lifting segment with juxtaposed receiving chambers with tool gripper and holder for the interchangeable tool sets - hammer jaws - swings into the workpiece feeder axis for tool change - Or is slidable, which swivel or lifting segment has a guideway in which the front cover, which is likewise pivoted or slidably engages, in such a way that it covers the hammer mechanism in the working position and releases it in the tool change position.
  • the tool grippers and holders of the receiving chambers in the swivel or lifting segment are assigned vertically pivotable actuating arms which insert or remove the selected tool sets - hammer jaws - from the tool guide into the corresponding receiving chamber after adjustment to the workpiece feeder axis.
  • a tool guide 2 is provided on the hammer head housing 1 in the hammer machine shown, which receives the hammer plunger 3 with hammer jaws 4 - here three each - with associated insertion wedges 5; the tool feeder axis is here at 6.
  • the structure and the mode of operation are described in detail in DE-PS 32 05 584.
  • the hammer mechanism on the hammer head housing 1 is preceded by a pivotable or displaceable front cover 9 and a pivoting or lifting segment; operable in the example as a swivel segment 10 by means of a rotary motor 10a.
  • the front cover 9 and the swivel segment 10 via a pin guide track 11, 12 in their swivel or. Sliding movement coupled together, such that the front cover 9 covers the hammer mechanism in the hammer head housing 1 in the working position and releases it in the tool change position.
  • the swivel or lifting segment 10 there are side by side along the guideway 12 on the lower edge receiving chambers 13 with tool grippers in Form of locking rockers 14 provided in associated tool holder housings 15.
  • An actuating arm 16 is assigned to each holder housing 15, which actuating arm 16 moves the selected tool sets in the form of hammer jaws 4 after adjustment to the tool feeder axis 6 from the tool guide 2 into the corresponding receiving chamber 13. spread.
  • the actuating arms 16 engage on the outside of the tool holder housing 15 by means of a pin slot guide 17 for retracting and extending at the receiving chambers 13, the actuating arm 16 engaging in the hook opening 20 from the piston tappet 18 of a cylinder drive 19 by means of a hook end 21 to pivot it.
  • the tool grippers in the form of latching rockers 14 are pivotably arranged in circumferential slots 22 of the respective tool holder housing 15 and engage via bevels 23 on the hammer jaws 4 with latching lugs 24 in blind holes 25 of the same (FIG. 4) for insertion and removal.
  • the latching rockers 14 engage at the end by means of pins 26 in oblique slots 27 of a driving piston 28 in the tool holder housing 15 and can be lifted out of their latching action with the hammer jaws 4 by means of an actuating plunger 29 that hits the end of a latching rocker 14.
  • the tool holder housing 15 also accommodate a counter-holder plunger 31 which is extended under spring action 30 and which is guided on the one hand at 32 in the housing 15 and on the other hand at 33 in the driver piston 28.
  • the actuating plunger 29 can be advanced via an end bevel 34 from a piston plunger 35 with a cylinder drive 36 arranged perpendicularly thereto with a counter bevel 37.
  • These insertion wedges 5 are movably suspended in their receptacles in accordance with the aforementioned DE-PS; these (5) here have side cams 38, which (38) each run in an inclined path 39 of the tool guide 2, so that they do not fall into the center when the hammer jaws 4 are removed and inserted, where they (5) otherwise introduce the would block changing hammer jaws 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Commercial Cooking Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A swaging machine for swaging a workpiece as it is axially fed or for recessing a workpiece when it is axially fixed and which comprises two or more dies and two or more stems for actuating said dies, die guiding means for guiding said dies, a front cover for covering said dies, and wedges extending between said stems and dies to vary the radial spacing of said dies and stems. The machine is provided with a die changing mechanism comprising a pivotally movable or displaceable die handling member, which is formed with juxtaposed chamber, which contain respective gripping means for gripping respective sets of dies, and said die handling member is pivotally movable or displaceable to a plurality of positions in which respective ones of said chambers are centered on a predetermined workpiece feeding axis. Said die handling member comprises a cam slot, which is engaged by the front cover and the front cover is pivotally movable or displaceable, like the die handling member, and is thus movable between an operating position, in which said front cover covers said dies, and a die changing position, in which said dies are exposed.

Description

Die Erfindung bezieht sich auf eine Werkzeugwechseleinrichtung bei Rundhämmer- und Knetmaschinen nach dem Oberbegriff des Anspruchs 1.The invention relates to a tool changing device in rotary hammers and kneaders according to the preamble of claim 1.

Es sind Rundhämmer- und Knetmaschinen bekannt, die nach dem Vorschub- oder Einstechverfahren arbeiten, mit zwei oder mehreren Hämmerstößeln und -backen als Umformwerkzeuge in einer Werkzeugführung mit Frontdeckel, insbesondere mit Backenzustellung durch Keileinschub. Bei diesen Maschinen erfolgt bisher der Wechsel der Hämmerbacken von Hand, was umständlich und zeitraubend ist und einer rationellen Arbeitsweise entgegensteht, insbesondere dann, wenn es sich um kleinere Serien handelt, was ein öfteres Umstecken der Werkzeuge erfordert, oder für die Bearbeitung von Werkstücken mit mehreren Abstufungen.Rotary hammers and kneaders are known which operate according to the feed or plunge method, with two or more hammer plungers and jaws as forming tools in a tool guide with a front cover, in particular with jaw feed by wedge insertion. With these machines, the hammer jaws have so far been changed by hand, which is cumbersome and time-consuming and prevents efficient operation, especially when it comes to smaller series, which requires the tools to be repositioned more often, or for machining workpieces with several Gradations.

Es ist Aufgabe der Erfindung, eine Werkzeugwechseleinrichtung speziell für Rundhämmer- und Knetmaschinen zu schaffen.It is an object of the invention to provide a tool changing device especially for rotary hammers and kneaders.

Zur Lösung dieser Aufgabe kennzeichnet sich erfindungsgemäß die Werkzeugwechseleinrichtung bei Rundhämmer- und Knetmaschinen nach dem Oberbegriff von Anspruch 1 dadurch, daß ein Schwenk- oder Hubsegment mit nebeneinander angeordneten Aufnahmekammern mit Werkzeuggreifer und -halter für die auswechselbaren Werkzeugsätze - Hämmerbacken - in die Werkstückzubringerachse zum Werkzeugwechsel schwenk- oder schiebbar ist, welches Schwenk- oder Hubsegment eine Führungsbahn aufweist, in welche der ebenfalls verschwenk- oder verschiebbar angeordnete Frontdeckel eingreift, derart, daß er in der Arbeitsstellung das Hämmerwerk abdeckt und in der Werkzeugwechselstellung freigibt.To solve this problem, the tool changing device in rotary hammers and kneaders according to the invention is characterized in that a swivel or lifting segment with juxtaposed receiving chambers with tool gripper and holder for the interchangeable tool sets - hammer jaws - swings into the workpiece feeder axis for tool change - Or is slidable, which swivel or lifting segment has a guideway in which the front cover, which is likewise pivoted or slidably engages, in such a way that it covers the hammer mechanism in the working position and releases it in the tool change position.

Im einzelnen sind hierzu den Werkzeuggreifern und -haltern der Aufnahmekammern im Schwenk- oder Hubsegment senkrecht hierzu verschwenkbare Betätigungsarme zugeordnet, welche die ausgewählten Werkzeugsätze - Hämmerbacken - nach Einstellung auf die Werkstückzubringerachse von der Werkzeugführung in die entsprechende Aufnahmekammer ein- bzw. ausbringen.In particular, the tool grippers and holders of the receiving chambers in the swivel or lifting segment are assigned vertically pivotable actuating arms which insert or remove the selected tool sets - hammer jaws - from the tool guide into the corresponding receiving chamber after adjustment to the workpiece feeder axis.

Weitere Einzelheiten der Werkzeugwechseleinrichtung bei Rundhämmer- und Knetmaschinen gemäß der Erfindung sind in der Zeichnung anhand eines bevorzugten Ausführungsbeispiels dargestellt und nachfolgend beschrieben.Further details of the tool changing device in rotary hammers and kneaders according to the invention are shown in the drawing using a preferred embodiment and described below.

Es zeigt:

Figur 1
die Vorderansicht der Werkzeugwechseleinrichtung bei Rundhämmer- und Knetmaschinen,
Figur 2
den Querschnitt nach Linie II-II der Figur 1,
Figur 3
den Querschnitt nach Linie III-III der Figur 1,
Figur 4
die Vergrößerung des Ausschnitts IV der Figur 3,
Figur 5
die Ansicht nach Linie V-V der Figur 4.
It shows:
Figure 1
the front view of the tool changing device in rotary hammers and kneaders,
Figure 2
2 shows the cross section along line II-II of FIG. 1,
Figure 3
the cross section along line III-III of Figure 1,
Figure 4
the enlargement of section IV of Figure 3,
Figure 5
the view along line VV of Figure 4.

Wie aus der Zeichnung, insbesondere Figur 1 und 5, zu ersehen ist, ist bei der dargestellten Hämmermaschine am Hämmerkopfgehäuse 1 eine Werkzeugführung 2 vorgesehen, welche die Hämmerstößel 3 mit Hämmerbacken 4 - hier jeweils drei - mit zugeordneten Einschubkeilen 5 aufnimmt; die Werkzeugzubringerachse ist hier bei 6. Die Druckrollen 7 im Haltering 8 bewirken bei Drehung des Hämmerwerks die Hämmerbewegung infolge der auflaufenden Hämmerstößel 3 über die Hämmerbacken 4 bei zwischenliegenden Keilen 5 auf das in der Zubringerachse 6 einzuführende Werkstück. Der Aufbau und die Wirkungsweise sind in einzelnen in der DE-PS 32 05 584 beschrieben.As can be seen from the drawing, in particular FIGS. 1 and 5, a tool guide 2 is provided on the hammer head housing 1 in the hammer machine shown, which receives the hammer plunger 3 with hammer jaws 4 - here three each - with associated insertion wedges 5; the tool feeder axis is here at 6. The pressure rollers 7 in the retaining ring 8, when the hammer mechanism rotates, cause the hammer movement as a result of the hitting hammer plunger 3 over the hammer jaws 4 with wedges 5 in between on the workpiece to be inserted in the feeder axis 6. The structure and the mode of operation are described in detail in DE-PS 32 05 584.

Hier ist dem Hämmerwerk am Hämmerkopfgehäuse 1 ein verschwenk- oder verschiebbarer Frontdeckel 9 und ein Schwenk-oder Hubsegment vorgelagert; im Beispiel als Schwenksegment 10 mittels Drehmotor 10a betätigbar. Hierbei sind der Frontdeckel 9 und das Schwenksegment 10 über eine Stift-Führungsbahn 11, 12 in ihrer Schwenk-bzw. Schiebebewegung miteinander gekuppelt, derart, daß der Frontdeckel 9 in Arbeitsstellung das Hämmerwerk im Hämmerkopfgehäuse 1 abdeckt und in der Werkzeugwechselstellung freigibt. Im Schwenk- oder Hubsegment 10 sind nebeneinander entlang der Führungsbahn 12 am Unterrand Aufnahmekammern 13 mit Werkzeuggreifern in Form von Rastwippen 14 in zugehörigen Werkzeughaltergehäusen 15 vorgesehen. Jedem Haltergehäuse 15 ist jeweils ein Betätigungsarm 16 zugeordnet, welcher Betätigungsarm 16 die ausgewählten Werkzeugsätze in Form von Hämmerbacken 4 nach Einstellung auf die Werkzeugzubringerachse 6 von der Werkzeugführung 2 in die entsprechende Aufnahmekammer 13 ein-bzw. ausbringen. Die Betätigungsarme 16 greifen hierbei außen am Werkzeughaltergehäuse 15 mittels Stift-Schlitzführung 17 zum Ein- und Ausfahren an den Aufnahmekammern 13 an, wobei andererseits vom Kolbenstößel 18 eines Zylinderantriebs 19 in eine Hakenöffnung 20 der Betätigungsarm 16 mittels Hakenende 21 zu dessen Verschwenkung eingreift.Here the hammer mechanism on the hammer head housing 1 is preceded by a pivotable or displaceable front cover 9 and a pivoting or lifting segment; operable in the example as a swivel segment 10 by means of a rotary motor 10a. Here, the front cover 9 and the swivel segment 10 via a pin guide track 11, 12 in their swivel or. Sliding movement coupled together, such that the front cover 9 covers the hammer mechanism in the hammer head housing 1 in the working position and releases it in the tool change position. In the swivel or lifting segment 10 there are side by side along the guideway 12 on the lower edge receiving chambers 13 with tool grippers in Form of locking rockers 14 provided in associated tool holder housings 15. An actuating arm 16 is assigned to each holder housing 15, which actuating arm 16 moves the selected tool sets in the form of hammer jaws 4 after adjustment to the tool feeder axis 6 from the tool guide 2 into the corresponding receiving chamber 13. spread. The actuating arms 16 engage on the outside of the tool holder housing 15 by means of a pin slot guide 17 for retracting and extending at the receiving chambers 13, the actuating arm 16 engaging in the hook opening 20 from the piston tappet 18 of a cylinder drive 19 by means of a hook end 21 to pivot it.

Die Werkzeuggreifer in Form von Rastwippen 14 sind in Umfangschlitzen 22 des jeweiligen Werkzeughaltergehäuses 15 schwenkbar angeordnet und greifen über Anschrägungen 23 an den Hämmerbacken 4 mit Rastnasen 24 in Sacklöcher 25 derselben (4) zum Ein- und Ausbringen ein. Die Rastwippen 14 greifen endseitig mittels Stiften 26 in Schrägschlitze 27 eines Mitnehmerkolbens 28 im Werkzeughaltergehäuse 15 und sind über einen am Ende einer Rastwippe 14 auftreffenden Betätigungsstößel 29 aus ihrer Verrastung mit dem Hämmerbacken 4 aushebbar. Die Werkzeughaltergehäuse 15 nehmen weiter einen unter Federwirkung 30 ausgefahrenen Gegenhalterstößel 31 auf, welcher einerseits bei 32 im Gehäuse 15 und andererseits bei 33 im Mitnehmerkolben 28 geführt ist. Der Betätigungsstößel 29 ist über eine Endschrägung 34 von einem senkrecht hierzu angeordneten Kolbenstößel 35 mit Zylinderantrieb 36 mit Gegenschrägung 37 vorbringbar.The tool grippers in the form of latching rockers 14 are pivotably arranged in circumferential slots 22 of the respective tool holder housing 15 and engage via bevels 23 on the hammer jaws 4 with latching lugs 24 in blind holes 25 of the same (FIG. 4) for insertion and removal. The latching rockers 14 engage at the end by means of pins 26 in oblique slots 27 of a driving piston 28 in the tool holder housing 15 and can be lifted out of their latching action with the hammer jaws 4 by means of an actuating plunger 29 that hits the end of a latching rocker 14. The tool holder housing 15 also accommodate a counter-holder plunger 31 which is extended under spring action 30 and which is guided on the one hand at 32 in the housing 15 and on the other hand at 33 in the driver piston 28. The actuating plunger 29 can be advanced via an end bevel 34 from a piston plunger 35 with a cylinder drive 36 arranged perpendicularly thereto with a counter bevel 37.

Die hier zwischen den Hämmerstößeln 3 und Hämmerbacken 4 vorgesehenen Einschubkeile 5, welche insbesondere beim Arbeiten im Einstechverfahren vorhanden sind, können auch zur Backenzustellung und Entlastung beim Werkzeugwechsel verwendet werden; sonst kann dieser auch in Zwischenrollenstellung der Hämmerbacken erfolgen. Diese Einschubkeile 5 sind entsprechend der eingangs genannten DE-PS beweglich in ihren Aufnahmen aufgehängt; diese (5) weisen hier Seitennocken 38 auf, welche (38) jeweils in eine schiefe Bahn 39 der Werkzeugführung 2 laufen, um beim Aus- und Einbringen der Hämmerbacken 4 nicht ins Zentrum zu fallen, wo sie (5) sonst das Einbringen der zu wechselnden Hämmerbacken 4 blockieren würden.The insertion wedges 5 provided here between the hammer plungers 3 and hammer jaws 4, which are present in particular when working in the plunge-in process, can also be used for jaw infeed and relief when changing tools; otherwise this can also be done in the intermediate roller position of the hammer jaws. These insertion wedges 5 are movably suspended in their receptacles in accordance with the aforementioned DE-PS; these (5) here have side cams 38, which (38) each run in an inclined path 39 of the tool guide 2, so that they do not fall into the center when the hammer jaws 4 are removed and inserted, where they (5) otherwise introduce the would block changing hammer jaws 4.

Claims (8)

  1. A tool-changing apparatus for swaging and kneading machines operating in accordance with the feeding or recessing process, comprising two or more hammer pushers (3) and hammer dies (4) as shaping tools, in a tool guide (2) with a front cover (9), wherein the dies are infed by wedge insertion, characterized in that a pivoted or lifting segment (10) is provided, which comprises juxtaposed receiving chambers (13) provided with a tool gripper and tool holder (detent rockers 14) for the replaceable tool sets - hammer dies (4) - and is adapted to be pivotally moved or displaced into the tool feed axis (6) for a tool change, and said pivoted or lifting segment has a guideway (12), into which the front cover (9) extends, which is also pivoted or displaceable, in such a manner that the front cover in its operative position covers the hammer mechanism and in its tool-changing position exposes the hammer mechanism, wherein
       actuating arms (16) are associated with the tool grippers and tool holders (detent rockers 14) in the receiving chambers (13) in the pivoted or lifting segment (10) and are pivotally movable at right angles thereto and after an adjustment of the selected tool sets - hammer jaws (4) - to the tool feed axis (6) insert the selected tool sets from the tool guide (2) to the corresponding receiving chamber (13) or extract them.
  2. A tool-changing apparatus according to claim 1, characterized in that the actuating arms (16) engage at one end on the outside of the tool holder housings (15) by means of a pin-slot guide (17) for inserting and extracting into and out of the receiving chambers (13) and at the other end a piston ram (18) extends by means of a hook end (21) into a hook opening (20) of the actuating arms (16) to impart a pivotal movement thereto.
  3. A tool-changing apparatus according to claim 1 or 2, characterized in that the tool grippers consisting of detent rockers (14) are pivoted in peripheral slots (22) of the tool holder housings (15) and have beveled surfaces (23), which at the ends of the hammer dies (4) extend with detent noses (24) into blind holes (25) thereof for inserting and extracting them.
  4. A tool-changing apparatus according to claim 3, characterized in that the detent rockers (14) are provided at their end with a pin (26), which extends into oblique slots (27) of coupling pistons (28) in the tool holder housings (15), and are adapted to be lifted out of their detent engagement with the hammer dies (4) by means of an actuating pusher (29), which engages a detent rocker (14) at its end.
  5. A tool-changing apparatus according to claim 4, characterized in that each tool holder housing (15) contains a holder-up pusher (31), which is held under spring action (30) so as to be extensible and is guided at one end in the holder housing (15) and at the other end in the coupling piston.
  6. A tool-changing apparatus according to claim 4 and 5, characterized in that the actuating pusher (29) is movable on a beveled end face (34) by means of a piston pusher (35), which has an oppositely inclined beveled surface (37) and extends at right angles to said actuating pusher (29).
  7. A tool-changing apparatus according to any of the preceding claims, characterized in that inserting wedges (5) for infeeding the dies and for a relief in case of a die change are provided between the hammer pusher (3) and the hammer die (4).
  8. A tool-changing apparatus according to claim 7, characterized in that the inserting wedges (5) are movably suspended at their end and on the insertion side are provided with lateral cams (38), each of which moves in an oblique guideway (39) of the tool guide (2) so that it will not fall into the centre as the hammer dies (4) are extracted and inserted.
EP90111835A 1989-08-01 1990-06-22 Tool changing device for swaging and kneading machines Expired - Lifetime EP0411300B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3925452 1989-08-01
DE3925452A DE3925452C1 (en) 1989-08-01 1989-08-01

Publications (3)

Publication Number Publication Date
EP0411300A2 EP0411300A2 (en) 1991-02-06
EP0411300A3 EP0411300A3 (en) 1991-03-27
EP0411300B1 true EP0411300B1 (en) 1994-08-31

Family

ID=6386294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111835A Expired - Lifetime EP0411300B1 (en) 1989-08-01 1990-06-22 Tool changing device for swaging and kneading machines

Country Status (6)

Country Link
US (1) US5036691A (en)
EP (1) EP0411300B1 (en)
JP (1) JPH0710410B2 (en)
AT (1) ATE110602T1 (en)
DE (1) DE3925452C1 (en)
ES (1) ES2063201T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225108A1 (en) * 1992-07-30 1994-02-03 Walter E Spaeth Pipe bending press for hollow profiles with varying bending radii and cross=sections - has automatically exchangeable clamp jaws and bending tools in revolving magazines and has tool change device
US6718814B2 (en) 2001-04-06 2004-04-13 Computer Age Engineering Swaging die assembly having compressible spacing element
DE10134956A1 (en) * 2001-07-23 2003-02-20 Beru Ag Glow plugs and process for their manufacture
DE102010014601A1 (en) * 2010-04-09 2011-10-13 Felss Gmbh Tool unit of a rotary swaging machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1507621A (en) * 1922-01-28 1924-09-09 Torrington Co Swager with wedge motion
DE1296481B (en) * 1965-03-16 1969-05-29 Alfred Dipl Ing Multi-punch punch with an additional nibbling device
AT312397B (en) * 1972-08-08 1973-12-27 Gfm Gesselschaft Fuer Fertigun Device for changing the tools in forging presses
DE2700502A1 (en) * 1977-01-07 1978-07-13 Peltzer & Ehlers MULTI-STAGE PRESS
FI772651A (en) * 1977-09-07 1979-03-08 Lillbackan Konepaja MASKIN FOER FASTPRESSNING AV KOPPLINGSSTYCKEN FOER SLANGAR
DE3205584C2 (en) * 1982-02-17 1985-06-13 Gebrüder Felss, 7535 Königsbach-Stein Rotary hammering machine
SE453578B (en) * 1986-10-02 1988-02-15 Pullmax Ab TOOL EXCHANGER FOR TOOLS IN CUTTING MACHINES

Also Published As

Publication number Publication date
EP0411300A3 (en) 1991-03-27
JPH03151137A (en) 1991-06-27
ATE110602T1 (en) 1994-09-15
JPH0710410B2 (en) 1995-02-08
EP0411300A2 (en) 1991-02-06
ES2063201T3 (en) 1995-01-01
US5036691A (en) 1991-08-06
DE3925452C1 (en) 1991-04-25

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