Patent · US Expired

Method of clamping a workpiece

US6241231A · kind A · utility

17Cited by
13References
57Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 17, 2000
Grant dateJun 5, 2001
Priority date
Expiry dateMar 17, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB25B5/06
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A clamping device for frictional clamping of a workpiece which includes a clamp element adapted to frictionally clamp a workpiece and a mechanism for moving the clamp element which includes a shape memory alloy adapted to move the clamp element when the shape memory alloy is heated. The shape memory alloy moves the clamp element into a clamped state and/or unclamped state upon heating the shape memory alloy. The clamped element is preferably a super elastic alloy which is naturally oriented in a clamped position for a positive clamp and in an unclamped position for a non-positive clamp.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.