EP0257449A2 - Dispositif de serrage des pièces sur manipulateurs de forgeage - Google Patents

Dispositif de serrage des pièces sur manipulateurs de forgeage Download PDF

Info

Publication number: EP0257449A2
Authority: EP; European Patent Office
Prior art keywords: piston; bearing head; pliers; arms; piston rod
Prior art date: 1986-08-21
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

EP87111664A

Other languages

German (de)

English (en)

Other versions

EP0257449B1 (fr

EP0257449A3 (en

Inventor

Peter Schubert

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.)

SMS Hasenclever GmbH

Original Assignee

SMS Hasenclever GmbH

SMS Hasenclever Maschinenfabrik GmbH

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.)

1986-08-21

Filing date

1987-08-12

Publication date

1988-03-02

1987-08-12 Application filed by SMS Hasenclever GmbH, SMS Hasenclever Maschinenfabrik GmbH filed Critical SMS Hasenclever GmbH

1987-08-12 Priority to AT87111664T priority Critical patent/ATE73026T1/de

1988-03-02 Publication of EP0257449A2 publication Critical patent/EP0257449A2/fr

1989-12-06 Publication of EP0257449A3 publication Critical patent/EP0257449A3/de

1992-03-04 Application granted granted Critical

1992-03-04 Publication of EP0257449B1 publication Critical patent/EP0257449B1/fr

2007-08-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
- 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
- Y10T279/00—Chucks or sockets
- Y10T279/12—Chucks or sockets with fluid-pressure actuator
- Y10T279/1241—Socket type

Definitions

the clamping devices for forgings on forging manipulators are formed with two or also four, then in pairs crossing planes in a bearing head pivotable pliers arms which at one end carry pivoting jaws about axes parallel to the pivot axis of the respective pliers arm.
adjusting means such as piston-cylinder units acting directly or via wedges, tabs or stilts act on the tong arms, by means of which the tong closing is effected.
only two tong arms are provided, which are provided with V-shaped grooved jaws.
the invention relates to clamping devices which are provided with four pliers arms and four clamping jaws.
the clamping devices provided with four pliers arms with clamping jaws like the clamping devices provided with only two pliers arms with clamping jaws, only have a single adjusting means, by means of which the pliers arms with their clamping jaws are moved uniformly and in the same direction.
these clamping devices are only suitable for clamping forgings, the clamping surfaces of which, in the planes crossing at right angles, have the same distance from the axis of the forging in the clamping area, for example a circular or square cross section.
each pair of pliers having its own actuating means consisting of a piston with stilts associated with the pliers arms of the pair, is assigned and the pistons are arranged coaxially to the adjusting means as pistons and ring pistons in a common cylinder connected to the bearing head of the pliers arms and rotatably mounted in the frame supporting the clamping device.
Pistons and ring pistons as are provided for the pair-independent, independent movement of the gun arms according to the prior art, do not permit the feeding of tools or workpieces from the rear or their discharge through the clamping device, as is desirable, however, in particular on forging manipulators which interact with so-called forging machines, whose x-shaped rams and tools are moved radially to the workpiece.
the space requirement for the two nested pistons is a disadvantage.
the object of the invention is to overcome the aforementioned disadvantages by a compact, space-saving design of the clamping device.
the pistons are arranged according to the invention as annular pistons in the cylinder bore of the pliers carrier in opposite directions axially one behind the other and the piston, which is more distant from the bearing head, passes through with its piston rod the piston closer to the bearing head together with the associated hollow one Piston rod and the head piece acting on the tong arms of the associated pair.
the piston rod of the piston which is more distant from the bearing head is made hollow here, in addition to the compact design, there is at the same time the possibility of feeding and removing material and tools, such as in particular mandrel rods when forging hollow bodies, through this hollow piston rod.
the pistons are designed with the same inside and outside diameters of the effective piston surfaces.
the compact, space-saving design of the clamping device which is aimed at by the invention, is also achieved in that, according to a further feature of the invention, the head pieces of the piston rods are designed as wedge arms spreading wedge arms, the wedges of one pair of tong arms and the other have increasing active surfaces and the piston rod of the distant from the bearing head Piston acts as a pull rod and the other piston rod acts as a push rod.
guiding the pistons arranged in opposite directions one behind the other is achieved in that the bearing head is provided with a central bore in which the free end of the piston rod connected to the piston located at a distance from the bearing head is guided axially movable, while the hollow piston rod connected to the piston located closer to the bearing head is guided axially movable by the piston rod guided in the central bore of the bearing head.
a pliers carrier 2 rotatable in a pliers bearing 1 with a bearing head 3 and pliers arms 5 pivotably mounted therein with clamping jaws 4 form a clamping device which is suspended in the manipulator frame 6 in the exemplary embodiment shown in FIG.
Angle levers 7 are pivotally mounted in the manipulator frame 6 for suspension.
the angle lever 7 serving the front and rear suspension are connected to one another by coupling 8 and are doubled Piston-cylinder units 9 on the one hand adjustable and on the other hand held resiliently.
the angle levers 7 carry the pliers bearing 1, which on the one hand is axially adjustable in the horizontal direction by double piston-cylinder units 11 and on the other hand is resiliently supported.
the manipulator frame 6 is provided with wheels 12 and can be moved on rails 13 by the travel drive 14, the gearwheel 15 of which engages in a drive rod 17 anchored to the rails 16 on the foundation 16.
the forging manipulator is assigned to a forging machine with forging tools moving in opposite directions, a suspension with vertical adjustment of the clamping device is unnecessary.
the pliers bearing 1 of the clamping device is therefore firmly connected to the manipulator frame 20, which is provided with strips 21 in sliding guides 22.
drive sticks 23 are fastened in the foundation frame 24, into which gear wheels 25 of drive drives 26 engage.
FIGS. 3 and 4 The details of the clamping device are shown in FIGS. 3 and 4 on a larger scale.
pliers arms 5 are provided, which can be moved separately in pairs, so that the pliers arms 5x opposing one plane and the crossing pliers arms 5y crossing one another in the other plane have different workpiece dimensions in the planes, for example for clamping a cross section with in can set different dimensions on the x and y axes.
the tong arms 5x pivotable in the bearing head 3 by bolts 30 from a double wedge 31 shown in only one half and the tong arms 5y pivotable in the bearing head 3 by bolts 30 by a double wedge 32 likewise shown in only one half, and the double wedges 31 and 32 in themselves separately movable.
the gun arms 5x and 5y are provided at one end with fork slots 33, which offer space for the wedges 31 and 32. Swiveling bolts sit in the holes at the fork ends 34, which rest with partially cylindrical thrust pieces 35 on the active surfaces of the double wedges 31 and 32, which are occupied by closing strips 36.
Each of the tong arms 5 is associated with a cylinder 37 articulated in the bearing head 3, which guides pistons 38, which are connected to the tong arms 5 and act on them in the opening direction and via the bolts 34 and pressure pieces 35 in constant contact with the active surfaces of the double wedges 31 and Hold 32.
the double wedge 31 assigned to the tong arms 5x is connected to a hollow cylindrical push rod 39, while the double wedge 32 assigned to the tong arms 5y is connected to a hollow cylindrical pull rod 40.
the double wedges 31 form a head piece for the push rod 39, while the double wedges 32 form a head piece for the pull rod 40.
the push rod 39 is guided by a bush 41 which is inserted into the pliers carrier 2. Furthermore, the push rod 39 is provided with slots 42 for the passage of the double wedge 32.
the pull rod 40 is guided, which is guided with its neck 43 in a central bore of the bearing head 3 and with its neck 44 in a bush 45 in the pliers carrier 2.
the push rod 39 is connected to a piston 46 at its end facing away from the double wedge 31 and the pull rod 40 is connected to a piston 47 at its end facing away from the double wedge 32.
the pliers carrier 2 connected to the bearing head 3 is drilled through holes 48 to the cylinder, in which the pistons 46 and 47 are guided and acted upon.
a collar 49 in the cylinder bore 48 is provided to limit the strokes of the pistons 46 and 47.
the connected to the pliers carrier 2, rotatable with it socket 45 is provided with an attached, non-rotatable socket 50, via which the pressure medium supply to the lines 51, 52 and 53 takes place, with the pistons 46 and 47 in the closing direction and can be acted upon in the opening direction via line 52, while the pistons 38 in cylinders 37 can be acted upon via line 53.
the pliers carrier 2 is rotatable in the pliers bearing 1 in the bearings 54 and 55. The rotation takes place from a motor 56, via the pinion 57 seated on the motor shaft, the idler gear 58 and the ring gear 59 connected to the pliers carrier 2.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Forging (AREA)
Manipulator (AREA)
Clamps And Clips (AREA)

EP87111664A 1986-08-21 1987-08-12 Dispositif de serrage des pièces sur manipulateurs de forgeage Expired - Lifetime EP0257449B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT87111664T ATE73026T1 (de)	1986-08-21	1987-08-12	Einspannvorrichtung fuer schmiedestuecke an schmiedemanipulatoren.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3628407		1986-08-21
DE3628407		1986-08-21

Publications (3)

Publication Number	Publication Date
EP0257449A2 true EP0257449A2 (fr)	1988-03-02
EP0257449A3 EP0257449A3 (en)	1989-12-06
EP0257449B1 EP0257449B1 (fr)	1992-03-04

Family

ID=6307876

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP87111664A Expired - Lifetime EP0257449B1 (fr)	1986-08-21	1987-08-12	Dispositif de serrage des pièces sur manipulateurs de forgeage

Country Status (6)

Country	Link
US (1)	US4776199A (fr)
EP (1)	EP0257449B1 (fr)
JP (1)	JPH0734965B2 (fr)
AT (1)	ATE73026T1 (fr)
DE (1)	DE3777012D1 (fr)
ES (1)	ES2030685T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104308063A (zh) *	2014-09-26	2015-01-28	浙江中集铸锻有限公司	离合器轴承凹槽挡边机械手
CN113560478A (zh) *	2021-08-10	2021-10-29	山东工业职业学院	一种轧钢冶炼用钢料雏形捶打稳定性夹持机构

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8704931D0 (en) *	1987-03-03	1987-04-08	Davy Mckee Sheffield	Peel assembly for ingot manipulator
US6176532B1 (en) *	1999-06-14	2001-01-23	Mark L. Degener	Fluid powered gripper assembly having central cavity
KR200449202Y1 (ko)	2008-02-28	2010-06-24	황득상	에어 햄머용 단조 작업 장치
DE102009052141A1 (de) *	2009-04-23	2010-10-28	Sms Meer Gmbh	Manipulator für Schmiedemaschinen
US8511136B2 (en)	2012-01-09	2013-08-20	Firth Rixson Limited	Gripper assembly for a manipulator and method of use
AT516507B1 (de) *	2014-12-02	2016-06-15	Gfm-Gmbh	Schmiedemaschine
CN115921749A (zh) *	2022-12-22	2023-04-07	湖北钟意机电科技有限公司	一种高速冷镦机精密夹钳

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE880419C (de) *	1941-11-23	1953-06-22	Hoerder Huettenunion Ag	Zange zum Halten und Fuehren schwerer Schmiedestuecke
US3456536A (en) *	1967-02-28	1969-07-22	Houdaille Industries Inc	Workpiece clamp assembly
DE2411112C3 (de) *	1974-03-08	1982-02-18	Dango & Dienenthal, 5900 Siegen	Hydraulischer Spannzylinderantrieb für Blockzangen
JPS56144839A (en) *	1980-04-14	1981-11-11	Japan Steel Works Ltd:The	Forging manipulator
WO1985003404A1 (fr) *	1984-01-23	1985-08-01	Dyna/Pert - Precima Limited	Tete de prehension pour la manipulation de composants electriques
US4599037A (en) *	1984-07-02	1986-07-08	United Technologies Corporation	Method and apparatus for manipulating miniature parts
JPS6149738A (ja) *	1984-08-15	1986-03-11	Ishikawajima Harima Heavy Ind Co Ltd	マニプレ−タのトング
JPH0247288B2 (ja) *	1985-01-25	1990-10-19	Daiichi Koshuha Kogyo Kk	Kanmagesochinokuranpusochi

1987
- 1987-08-12 DE DE8787111664T patent/DE3777012D1/de not_active Expired - Lifetime
- 1987-08-12 AT AT87111664T patent/ATE73026T1/de not_active IP Right Cessation
- 1987-08-12 ES ES198787111664T patent/ES2030685T3/es not_active Expired - Lifetime
- 1987-08-12 EP EP87111664A patent/EP0257449B1/fr not_active Expired - Lifetime
- 1987-08-18 JP JP62203599A patent/JPH0734965B2/ja not_active Expired - Lifetime
- 1987-08-19 US US07/087,041 patent/US4776199A/en not_active Expired - Lifetime

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104308063A (zh) *	2014-09-26	2015-01-28	浙江中集铸锻有限公司	离合器轴承凹槽挡边机械手
CN104308063B (zh) *	2014-09-26	2017-01-18	浙江中集铸锻有限公司	离合器轴承凹槽挡边机械手
CN113560478A (zh) *	2021-08-10	2021-10-29	山东工业职业学院	一种轧钢冶炼用钢料雏形捶打稳定性夹持机构

Also Published As

Publication number	Publication date
EP0257449B1 (fr)	1992-03-04
JPS6352731A (ja)	1988-03-05
JPH0734965B2 (ja)	1995-04-19
ATE73026T1 (de)	1992-03-15
ES2030685T3 (es)	1992-11-16
US4776199A (en)	1988-10-11
EP0257449A3 (en)	1989-12-06
DE3777012D1 (de)	1992-04-09

Legal Events

Date	Code	Title	Description
1988-01-16	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
1988-03-02	17P	Request for examination filed	Effective date: 19870812
1988-03-02	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT DE ES FR GB IT SE
1989-10-20	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1989-12-06	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT DE ES FR GB IT SE
1990-05-30	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: SMS HASENCLEVER GMBH
1991-08-21	17Q	First examination report despatched	Effective date: 19910705
1991-10-23	ITF	It: translation for a ep patent filed
1992-01-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1992-03-04	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT DE ES FR GB IT SE
1992-03-04	REF	Corresponds to:	Ref document number: 73026 Country of ref document: AT Date of ref document: 19920315 Kind code of ref document: T
1992-04-09	REF	Corresponds to:	Ref document number: 3777012 Country of ref document: DE Date of ref document: 19920409
1992-05-13	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1992-05-15	ET	Fr: translation filed
1992-08-13	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19920813 Ref country code: ES Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES Effective date: 19920813
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1993-01-07	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1993-01-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1993-02-24	26N	No opposition filed
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 87111664.6 Effective date: 19930307
1998-07-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19980724 Year of fee payment: 12
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1999-12-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 19991007
2000-04-05	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19990812
2000-04-28	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000428
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