EP0467493A1 - Appareil de forgeage oscillant - Google Patents

Appareil de forgeage oscillant Download PDF

Info

Publication number: EP0467493A1
Authority: EP; European Patent Office
Prior art keywords: piston; jaws; forging; vibratory; cylinder units
Prior art date: 1990-07-12
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

Application number

EP91250177A

Other languages

German (de)

English (en)

Other versions

EP0467493B1 (fr

Inventor

Ewald Feuerstacke

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.)

Vodafone GmbH

Original Assignee

Mannesmann AG

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.)

1990-07-12

Filing date

1991-07-03

Publication date

1992-01-22

1991-07-03 Application filed by Mannesmann AG filed Critical Mannesmann AG

1991-07-03 Priority to AT91250177T priority Critical patent/ATE102515T1/de

1992-01-22 Publication of EP0467493A1 publication Critical patent/EP0467493A1/fr

1994-03-09 Application granted granted Critical

1994-03-09 Publication of EP0467493B1 publication Critical patent/EP0467493B1/fr

2011-07-03 Anticipated expiration legal-status Critical

Status 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
- B21J7/18—Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging

Definitions

the invention relates to a device for vibratory forging acc. the preamble of claim 1.
DE-PS 1 171 245 discloses a stretch forging machine with oscillating jaws acting in opposite directions on a workpiece.
the vibrating jaws can be driven symmetrically by crank or eccentric drives.
the drive takes place via two drive links per oscillating jaw, which form a four-bar linkage, so that the oscillating jaws roll on the workpiece in the feed direction during their effective moving part.
a third drive link for each vibrating jaw causes the vibrating jaw and the workpiece to be advanced as well as the return stroke movement of the vibrating jaw. By shifting the suspension of the third link, the extent of the feed and return movements can be changed.
the movement of the vibrating jaws can be adjusted by changing the angular position, the eccentricity and the effective length of the eccentrics or cranks.
crank or eccentric drive proves to be disadvantageous, since the change in the movement path of the oscillating jaws is limited by the adjustment options of the cranks or eccentric.
the crank or eccentric drives with their drive links significantly increase the size of the forging device.
the play of the large number of joints negatively affects the forming result.
the invention has for its object to provide a device for vibratory forging with a high degree of reduction and small size, which allows a freely selectable adjustment of the path of movement of the vibrating jaws.
the arrangement of the piston-cylinder units designed as hydraulic cylinders between the oscillating jaws and in addition to the passage gap achieves a particularly space-saving design of the oscillating forging device.
the use of hydraulic cylinders in connection with a computer-aided control enables a freely selectable setting of the movement paths of the vibrating jaws that form the passage gap for the forged material.
the arrangement of the piston-cylinder unit with a clamping function between the other piston-cylinder units results in a minimum stroke with oscillating jaws rolling away. This results in a low power requirement for the cylinder.
the design of the vibratory forging device with a travel drive mounted on a guide rail enables direct hot forming (forging material temperature approx. 1000 ° C-1200 ° C) of the emerging flat product without applying disruptive forces in the direction of the resulting strand or spray material, especially in continuous casting plants or in devices for spray compacting.
the vibratory forging device is particularly suitable for slowly emerging flat products at speeds of around 2-6 m / min and achieves degrees of reduction of at least 60%.
the drive of the vibrating jaws in connection with the control enables the forming tools to be rolled in and against the direction of the forging in one work cycle. This is particularly advantageous when the forming tools are designed with circular contours.
the rolling motion of the oscillating jaws is particularly advantageously supported by the rolling plates arranged laterally on the oscillating jaws and engaging with one another via a bolt and an elongated hole.
FIG. 1 shows a side view of the oscillating forging device with two oscillating jaws 1, 1 'which are arranged in a mirror image of the direction of passage d.
the vibrating jaws 1, 1 'each consist of a tool carrier 2, 2' and a forming tool 3, 3 'attached to them.
two piston-cylinder units 5, 6 are provided on both sides for guiding the movement sequence of the oscillating jaws 1, 1 '. and a piston-cylinder unit 7 with a clamping function.
FIG. 1 shows a side view of the oscillating forging device with two oscillating jaws 1, 1 'which are arranged in a mirror image of the direction of passage d.
the vibrating jaws 1, 1 'each consist of a tool carrier 2, 2' and a forming tool 3, 3 'attached to them.
cylinders 5 to 7 arranged at the front in the drawing plane are shown.
the piston-cylinder units 5, 6 are articulated at the ends of their piston rods 8, 9 to the tool carrier 2 and via their cylinder housings 10, 11 to the tool carrier 3 '.
the articulation points of the piston-cylinder units 5, 6, viewed in the direction of passage d, are at the front and rear of the tool carriers 2, 2 '.
the piston cylinder 7 with clamping function is with its piston rod 12 on the tool carrier 2 and with its cylinder the housing 13 is articulated on the tool carrier 3 '.
Rolling plates 14, 14 ' are arranged on the side of the tool carriers 2, 2' next to and parallel to the forming tools 3, 3 '.
the rolling plates 14, 14 ' have the shape of right-angled triangles, the right-angled corners 15, 15' pointing to the passage gap 4 and overlapping. In the overlap area, the rolling plates 14, 14 'are connected in the area of their corners 15, 15' via a bolt 16.
the bolt 16 arranged on the sheet 14 engages in an elongated hole 17 running perpendicular to the tool carrier 2 in the sheet 14 '.
the clamping direction k of the piston-cylinder unit 7 with the clamping function cuts the passage gap 4 in the region of the bolt 16.
FIG. 2 shows a side view of the vibratory forging device with the driving device.
the piston-cylinder units 5, 6, 7 and the rolling plates 14, 14 ' are not shown.
the driving device essentially consists of a holding element 18 arranged laterally on the tool carriers 2, 2 'and designed as a sheet metal.
the holding element 18 is connected in the articulation points 22 of the piston-cylinder unit 7 with a clamping function to tool carriers 2, 2'.
the connection to the tool carrier 2 ' is again made via a bolt / slot connection as described in FIG. 1.
the holding element 18 is provided with rollers 19 between the tool carriers 2, 2 '.
the vibratory forging device can be moved on a guide rail 20 via the rollers 19. In the middle, the holding element 18 is connected to a reset cylinder 21 which is fixedly arranged on the guide rail 20.
the mode of operation of the vibratory forging device according to the invention is described below.
the forged product which is forcibly driven by driving rollers, enters the vibratory forging device when the forging jaws have moved apart and are opened at an angle to the incoming forging material. From this starting position, the subsequent sequence of movements can be broken down into the following steps.
the cycle time of the movement sequence just described is about 1-2 s. Since the guide cylinders are connected to a computer control via a path control and the clamping cylinders via a pressure control, the sequence of movements can also be changed as follows. Swinging back into the starting position without forging contact can be replaced by moving the vibrating jaws together again and then rolling them in the direction of travel. This is particularly advantageous if the contours of the oscillating jaws are in the form of a circular arc.
the computer control via the cylinders allows the gap-forming movement sequence of the vibrating jaws to be adapted to a wide variety of rolling conditions (rolling temperature, material type, degree of reduction, etc.).

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Forging (AREA)
General Preparation And Processing Of Foods (AREA)

EP91250177A 1990-07-12 1991-07-03 Appareil de forgeage oscillant Expired - Lifetime EP0467493B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT91250177T ATE102515T1 (de)	1990-07-12	1991-07-03	Einrichtung zum schwingschmieden.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4022261A DE4022261C1 (fr)	1990-07-12	1990-07-12
DE4022261		1990-07-12

Publications (2)

Publication Number	Publication Date
EP0467493A1 true EP0467493A1 (fr)	1992-01-22
EP0467493B1 EP0467493B1 (fr)	1994-03-09

Family

ID=6410186

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91250177A Expired - Lifetime EP0467493B1 (fr)	1990-07-12	1991-07-03	Appareil de forgeage oscillant

Country Status (3)

Country	Link
EP (1)	EP0467493B1 (fr)
AT (1)	ATE102515T1 (fr)
DE (2)	DE4022261C1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1928741A (en) *	1930-05-20	1933-10-03	Tschulenk Leopold	Rolling mill of the pilgrim-step type for the manufacture of metallic tubes
DE1007601B (de) *	1954-04-03	1957-05-02	Beche & Grohs Ges Mit Beschrae	Gesenkschmiedepresse
DE1014824B (de) *	1954-11-20	1957-08-29	Beche & Grohs Ges Mit Beschrae	Gesenkschmiedepresse
GB2009648A (en) *	1977-11-01	1979-06-20	Ch Polt I	Roll-forging mill
EP0344117A2 (fr) *	1988-05-25	1989-11-29	HILTI Aktiengesellschaft	Procédé et dispositif pour laminer des rainures dans des queues d'outils

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2081297B2 (fr) *	1970-03-20	1974-05-03	Cuq Pierre

1990
- 1990-07-12 DE DE4022261A patent/DE4022261C1/de not_active Expired - Fee Related
1991
- 1991-07-03 DE DE91250177T patent/DE59101144D1/de not_active Expired - Fee Related
- 1991-07-03 EP EP91250177A patent/EP0467493B1/fr not_active Expired - Lifetime
- 1991-07-03 AT AT91250177T patent/ATE102515T1/de not_active IP Right Cessation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1928741A (en) *	1930-05-20	1933-10-03	Tschulenk Leopold	Rolling mill of the pilgrim-step type for the manufacture of metallic tubes
DE1007601B (de) *	1954-04-03	1957-05-02	Beche & Grohs Ges Mit Beschrae	Gesenkschmiedepresse
DE1014824B (de) *	1954-11-20	1957-08-29	Beche & Grohs Ges Mit Beschrae	Gesenkschmiedepresse
GB2009648A (en) *	1977-11-01	1979-06-20	Ch Polt I	Roll-forging mill
EP0344117A2 (fr) *	1988-05-25	1989-11-29	HILTI Aktiengesellschaft	Procédé et dispositif pour laminer des rainures dans des queues d'outils

Also Published As

Publication number	Publication date
EP0467493B1 (fr)	1994-03-09
ATE102515T1 (de)	1994-03-15
DE59101144D1 (de)	1994-04-14
DE4022261C1 (fr)	1991-11-21

Legal Events

Date	Code	Title	Description
1991-12-07	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1992-01-22	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT DE FR GB IT SE
1992-04-01	17P	Request for examination filed	Effective date: 19920121
1993-09-01	17Q	First examination report despatched	Effective date: 19930714
1994-01-21	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-02-11	ITF	It: translation for a ep patent filed
1994-03-09	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT DE FR GB IT SE
1994-03-09	REF	Corresponds to:	Ref document number: 102515 Country of ref document: AT Date of ref document: 19940315 Kind code of ref document: T
1994-04-01	ET	Fr: translation filed
1994-04-14	REF	Corresponds to:	Ref document number: 59101144 Country of ref document: DE Date of ref document: 19940414
1994-06-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19940616 Year of fee payment: 4
1994-06-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19940623 Year of fee payment: 4
1994-07-06	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19940608
1994-08-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19940823 Year of fee payment: 4
1995-01-12	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-01-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 91250177.2
1995-03-01	26N	No opposition filed
1995-06-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19950620 Year of fee payment: 5
1995-07-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19950703
1995-07-04	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19950704
1996-02-28	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19950703
1996-04-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19960402
1996-04-15	EUG	Se: european patent has lapsed	Ref document number: 91250177.2
1996-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19960430
1996-05-03	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
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1996-07-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19960703
2005-07-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050703

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