EP 2603341 A1 20130619 - LOAD CELL FOR CHUCK WITH JAW FOR WORKPIECE HAVING CONSTANT HOLDING FORCE
Title (en)
LOAD CELL FOR CHUCK WITH JAW FOR WORKPIECE HAVING CONSTANT HOLDING FORCE
Title (de)
WÄGEZELLE FÜR EIN SANNFUTTER MIT KLEMMBACKE FÜR EIN WERKSTÜCK MIT KONSTANTER HALTEKRAFT
Title (fr)
CELLULE DE CHARGE POUR MANDRIN COMPRENANT UNE MÂCHOIRE POUR PIÈCE PRÉSENTANT UNE FORCE DE MAINTIEN CONSTANTE
Publication
Application
Priority
- US 37240510 P 20100810
- US 2011046890 W 20110808
Abstract (en)
[origin: WO2012021429A1] A chuck for securing a workpiece in a machine provides a variable clamping force on the workpiece. The chuck includes a base element having a longitudinal center, and a plurality of jaw elements movable to clamp the workpiece. The jaw elements exert a measurable clamping force on the workpiece. One or more load cells are operably connected to the jaw elements to measure the clamping force exerted on the workpiece. The load cells are positioned within the jaw. A drive moves the jaw elements to vary the clamping force exerted on the workpiece and a control system includes a comparator to compare the measured clamping force to a predetermined clamping force. The jaw elements are movable, as the chuck is rotating, to adjust the clamping force on the workpiece relative to the predetermined clamping force. A jaw element includes an integrated load cell.
IPC 8 full level
B23B 31/14 (2006.01); B23B 31/16 (2006.01); B23B 31/30 (2006.01); B23Q 17/00 (2006.01)
CPC (source: EP)
B23Q 17/005 (2013.01)
Citation (search report)
See references of WO 2012021429A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DOCDB simple family (application)
US 2011046890 W 20110808; EP 11743939 A 20110808