SE8100208L - SELF-CENTERING CHUCK - Google Patents

SELF-CENTERING CHUCK

Info

Publication number
SE8100208L
SE8100208L SE8100208A SE8100208A SE8100208L SE 8100208 L SE8100208 L SE 8100208L SE 8100208 A SE8100208 A SE 8100208A SE 8100208 A SE8100208 A SE 8100208A SE 8100208 L SE8100208 L SE 8100208L
Authority
SE
Sweden
Prior art keywords
torque
clamping
self
jaws
centering chuck
Prior art date
Application number
SE8100208A
Other languages
Swedish (sv)
Inventor
P C Boffelli
Original Assignee
Baruffaldi Frizioni Spa
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 Baruffaldi Frizioni Spa filed Critical Baruffaldi Frizioni Spa
Publication of SE8100208L publication Critical patent/SE8100208L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16233—Jaws movement actuated by oblique surfaces of a coaxial control rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/28—Chucks characterised by features relating primarily to remote control of the gripping means using electric or magnetic means in the chuck
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/062—Electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

A self-centering chuck for machine tools such as lathes includes jaw members (3) opened and closed by an electric motor (10-11) associated with an epicyclical reducing unit (19-20-21) which acts via a rotating nut (22) and rotationally fixed but axially moving screwsleeve (25) to operate wedge means (6a, 33) and radially move the jaws (3). The clamping force or torque on the workpiece, or bar, is obtained from the torque provided by the locked-rotor motor and is transmitted to the clamping jaws (3) by means of elastic means (27-28-29) disposed between the nut (25) and cylindrical wedge member 32, the value of the clamping force being held constant by means of an electromagnetic brake (14-15-16) acting on the rotor as this latter has achieved the desired clamping torque or by means of mechanical torque limiting means. <IMAGE>
SE8100208A 1980-01-16 1981-01-15 SELF-CENTERING CHUCK SE8100208L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19227/80A IT1129520B (en) 1980-01-16 1980-01-16 SELF-CENTERING WITH ELECTRIC CONTROL AND CONTROLLED TIGHTENING FOR MACHINE TOOLS

Publications (1)

Publication Number Publication Date
SE8100208L true SE8100208L (en) 1981-07-17

Family

ID=11155948

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100208A SE8100208L (en) 1980-01-16 1981-01-15 SELF-CENTERING CHUCK

Country Status (9)

Country Link
JP (1) JPS56139810A (en)
AR (1) AR224291A1 (en)
BR (1) BR8100083A (en)
DE (1) DE3101301A1 (en)
ES (1) ES8202500A1 (en)
FR (1) FR2473372A1 (en)
GB (1) GB2067931A (en)
IT (1) IT1129520B (en)
SE (1) SE8100208L (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3218083C2 (en) * 1982-05-13 1986-11-27 Hubert Dipl.-Ing. 5920 Bad Berleburg Bald Device for generating a setting torque, in particular for adjusting the position of the jaws of a chuck or the clamping force exerted by them
DE3218084C3 (en) * 1982-05-13 1990-07-12 Bald Hubert DEVICE FOR GENERATING A POSITION ROTATIONAL MOVEMENT
EP0228007B1 (en) * 1985-12-28 1992-04-15 Paul Forkardt GmbH &amp; Co. KG Machine tool and its method of operation
DE3630441A1 (en) * 1985-12-28 1987-07-02 Forkardt Paul Gmbh Machine tool
DE3642309A1 (en) * 1986-02-25 1987-08-27 Smw Spanneinrichtungen DEVICE FOR ACTUATING THE CLAMPING JAWS OF A POWER CHUCK
DE3629453A1 (en) * 1986-08-29 1988-03-10 Forkardt Paul Gmbh ELECTROMECHANICAL DEVICE FOR GENERATING AN AXIAL FORCE FOR THE OPERATION OF TENSIONERS
JP4344442B2 (en) * 1999-12-17 2009-10-14 富士機械製造株式会社 Chuck device
CN1937370A (en) * 2006-10-10 2007-03-28 任海 Electromechanical integrated machine tool chuck directly constituted of external rotor rotating electric machine
EP2103368A1 (en) * 2008-03-20 2009-09-23 Karl Hiestand Clamping device for machine tools
DE102013204876A1 (en) * 2013-03-20 2014-09-25 Schaeffler Technologies Gmbh & Co. Kg Jaw drive
EP3028804B1 (en) * 2014-12-04 2017-02-22 SMW-AUTOBLOK Spannsysteme GmbH Transmission device, in particular for energy and/or signal transmission
MX2018012044A (en) * 2016-04-07 2019-02-20 The Gleason Works Workholding arbor for gears.
DE102020126006A1 (en) * 2020-10-05 2022-04-07 Sterman Technische Systeme Gmbh Clamping device, spindle arrangement and machine tool
CN112775483A (en) * 2020-12-29 2021-05-11 浙江锐程机械制造有限公司 Power cutter head and pipe cutting machine thereof

Also Published As

Publication number Publication date
BR8100083A (en) 1981-07-21
ES498355A0 (en) 1982-02-16
IT1129520B (en) 1986-06-04
JPS56139810A (en) 1981-10-31
IT8019227A0 (en) 1980-01-16
ES8202500A1 (en) 1982-02-16
FR2473372A1 (en) 1981-07-17
DE3101301A1 (en) 1982-01-07
GB2067931A (en) 1981-08-05
AR224291A1 (en) 1981-11-13

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