EP1321234A2 - Elément de serrage centrant - Google Patents

Elément de serrage centrant Download PDF

Info

Publication number
EP1321234A2
EP1321234A2 EP02102519A EP02102519A EP1321234A2 EP 1321234 A2 EP1321234 A2 EP 1321234A2 EP 02102519 A EP02102519 A EP 02102519A EP 02102519 A EP02102519 A EP 02102519A EP 1321234 A2 EP1321234 A2 EP 1321234A2
Authority
EP
European Patent Office
Prior art keywords
bolts
centering
deflecting
centering clamping
slide
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
Application number
EP02102519A
Other languages
German (de)
English (en)
Other versions
EP1321234A3 (fr
EP1321234B1 (fr
Inventor
Rudolf Kohlert
David Fischer
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.)
Ludwig Ehrhardt GmbH
Original Assignee
Ludwig Ehrhardt GmbH
A Roemheld 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 Ludwig Ehrhardt GmbH, A Roemheld GmbH and Co KG filed Critical Ludwig Ehrhardt GmbH
Publication of EP1321234A2 publication Critical patent/EP1321234A2/fr
Publication of EP1321234A3 publication Critical patent/EP1321234A3/fr
Application granted granted Critical
Publication of EP1321234B1 publication Critical patent/EP1321234B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/08—Arrangements for positively actuating jaws using cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S409/00—Gear cutting, milling, or planing
    • Y10S409/903—Work holder
    • 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
    • Y10T279/1274—Radially reciprocating jaws
    • 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
    • Y10T279/1274—Radially reciprocating jaws
    • Y10T279/1291—Fluid pressure moves jaws via mechanical connection
    • 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
    • Y10T279/19—Radially reciprocating jaws
    • Y10T279/1973—Wedge actuated
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30868—Work support
    • Y10T409/309016—Work support with work holder or guide

Definitions

  • the invention relates to a centering clamping element for clamping Workpieces between clamping jaws that are assigned to centering clamping slides and which are moved over deflecting bolts arranged in pairs.
  • Centering clamping elements have the task of centering workpieces. It is important that the jaws that hold the workpiece and are guided precisely and approach each other without play. It is known to move the jaws using a rack and pinion, resulting in The consequence is that the retention force is only as great as the tension force itself. This means that everyone has an effect on the workpiece during machining Forces have a negative effect on the holding effect.
  • the well-known spindle drives with right-left thread have the disadvantage that they are not free of play. It depends on, that the workpiece is held securely and no machining force in it Position is affected.
  • the deflection bolts are, however, perpendicular to the footprint of the Element and thus determine the overall height, which in turn determines how far that clamped workpiece is removed from the machine table. In order to the lever action of the clamping jaws is added to the longitudinal and transverse forces above the machine table, which can lead to tension.
  • the centering clamping element according to the invention is through characterized the features of claim 1.
  • the centering clamping element consists of a housing 1 in which the entire Mechanics is integrated.
  • the housing 1 In the housing 1 are horizontal Recesses 2a, b and 3a, b embedded.
  • Each deflecting pin 4; 5 is on Provide the head end with a wedge bevel 6 that extends across the cross section.
  • a recess 7 is embedded in the deflecting bolt, which leads to the lower end has a straight boundary surface 9 and with a Inclined surface 8 is limited on the other side.
  • the deflection pin is on the Bottom with a flat 10 and on the opposite side in Provide a head area with a flat 11.
  • the deflection bolts are in pairs assigned to the recesses and their wedges 6 and their inclined surfaces 8 matched to each other.
  • the housing 1 is transverse to the recesses 2; 3 a cylinder bore 12 introduced in which the recesses 2; 3 ends so that a connection exists between the recesses and the cylinder bore.
  • the Cylinder bore 12 In the Cylinder bore 12 are two pistons 13; 14 let in. These pistons are over a partial area towards the center of the cylinder bore with wedge surfaces 15; 17 provided.
  • the wedge surfaces 15 run towards the recesses 2a, b, so that they are directed at an angle to the recesses.
  • the wedge surfaces 17 In the piston 14 are the wedge surfaces 17 so that they are at an angle from the Recesses 3a, b are directed away, where they end in a recess 16.
  • a tight fitting connection is made in which the Deflection bolts are inserted into the recesses 2a, b and 3a, b so that the Wedge slopes 6 of the deflecting bolts sliding on the wedge surfaces 15; 17 the piston issue.
  • the deflection bolts 4; 5 are in pairs in the recesses 3; 4 used that their recesses 7 are directed to the clamping side of the element.
  • the housing 1 is over the recesses 7 of each pair of deflection bolts provided with a recess 23 so that an opening is formed upwards.
  • a driving prism 18; 19 is inserted.
  • Each driving prism 18; 19 is with inclined surfaces 26; 27 provided the are matched to the inclined surfaces 8 of the deflection bolts so that they are on are slidingly guided.
  • the recess 7 in the deflection bolt is so large chosen that a space 20 between driving prism 18; 19 and the Boundary surface 9 remains.
  • Each driving prism 18; 19 is associated with a centering slide valve 21, so that Driving prism and centering slide slide form one unit.
  • the Centering slide 21 are slidably guided on the housing 1 and laterally Guide rails 22 limited.
  • the driving prisms 18; 19 perform a side Movement, accordingly the recesses 23 in the housing 1 designed that there is a sufficiently large free space. This freedom corresponds in a ratio to the stroke of the pistons 13; 14 and the like dependent movements of the other parts.
  • the pistons 13; 14 become hydraulic via the hydraulic connections 24; 25 operated.
  • On the centering slide slide 21 are jaws 28; 29 placed, and in a detachable connection, so that the Clamping jaws can be adapted to any application.
  • Sensors can be introduced into the housing, by means of which the position of the Piston and or the position of the deflection bolt and thus also the position of the Centering slide can be monitored and displayed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Aerials With Secondary Devices (AREA)
  • Road Signs Or Road Markings (AREA)
EP02102519A 2001-12-20 2002-10-31 Elément de serrage centrant Expired - Lifetime EP1321234B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10163104 2001-12-20
DE10163104A DE10163104A1 (de) 2001-12-20 2001-12-20 Zentrierspannelement

Publications (3)

Publication Number Publication Date
EP1321234A2 true EP1321234A2 (fr) 2003-06-25
EP1321234A3 EP1321234A3 (fr) 2006-10-04
EP1321234B1 EP1321234B1 (fr) 2009-10-14

Family

ID=7710261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02102519A Expired - Lifetime EP1321234B1 (fr) 2001-12-20 2002-10-31 Elément de serrage centrant

Country Status (4)

Country Link
US (1) US6783310B2 (fr)
EP (1) EP1321234B1 (fr)
AT (1) ATE445482T1 (fr)
DE (2) DE10163104A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965317A2 (fr) 1998-06-17 1999-12-22 SCA Hygiene Products AB Couche culotte jetable avec des moyens de fixation pour jeter cet article

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201504860D0 (en) 2015-03-23 2015-05-06 Rolls Royce Controls & Data Services Ltd Electrical coupling unit
WO2022032178A1 (fr) 2020-08-06 2022-02-10 Mate Precision Technologies Inc. Ensemble étau
WO2022032148A1 (fr) 2020-08-06 2022-02-10 Mate Precision Technologies Inc. Ensemble base d'usinage
CN114309690B (zh) * 2022-01-31 2023-03-14 浙江海德曼智能装备股份有限公司 一种卡盘

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507031A (en) * 1981-07-11 1985-03-26 Smw Schneider & Weisshaupt Gmbh Power chuck for turning machines
EP0386294A1 (fr) * 1989-03-09 1990-09-12 David Fischer Dispositif de centrage et serrage motorisé
EP0386295B1 (fr) * 1989-03-09 1993-07-28 David Fischer Dispositif de centrage et serrage
DE19845576A1 (de) * 1998-06-30 2000-01-05 Hico Himmel & Co Kg Vorrichtung zum zentrierten Spannen von Werkstücken oder dergleichen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619145C1 (de) * 1986-06-06 1987-07-02 Forkardt Paul Gmbh Spannfutter mit zwei gegenueberliegenden Spannbacken
DE3725714C1 (fr) * 1987-08-04 1988-06-23 Guenter Horst 7927 Sontheim De Roehm
DE3930690C1 (fr) * 1989-09-14 1990-10-04 Paul Forkardt Gmbh & Co Kg, 4000 Duesseldorf, De
US5060958A (en) * 1990-04-09 1991-10-29 Roemheld Gmbh Power drive and transmission unit for self centering clamps and chucks
EP1101554B1 (fr) * 1999-06-12 2001-07-25 FORKARDT Deutschland GmbH Mandrin pour machines-outils

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507031A (en) * 1981-07-11 1985-03-26 Smw Schneider & Weisshaupt Gmbh Power chuck for turning machines
EP0386294A1 (fr) * 1989-03-09 1990-09-12 David Fischer Dispositif de centrage et serrage motorisé
EP0386295B1 (fr) * 1989-03-09 1993-07-28 David Fischer Dispositif de centrage et serrage
DE19845576A1 (de) * 1998-06-30 2000-01-05 Hico Himmel & Co Kg Vorrichtung zum zentrierten Spannen von Werkstücken oder dergleichen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0965317A2 (fr) 1998-06-17 1999-12-22 SCA Hygiene Products AB Couche culotte jetable avec des moyens de fixation pour jeter cet article

Also Published As

Publication number Publication date
ATE445482T1 (de) 2009-10-15
US20030118417A1 (en) 2003-06-26
DE50213916D1 (de) 2009-11-26
EP1321234A3 (fr) 2006-10-04
DE10163104A1 (de) 2003-07-03
EP1321234B1 (fr) 2009-10-14
US6783310B2 (en) 2004-08-31

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