Title:
METHODS AND APPARATUS FOR SHAPING WORKPIECES
Document Type and Number:
WIPO Patent Application WO/2018/109501
Kind Code:
A3
Abstract:
Methods and apparatus for shaping workpieces are described in which data representing the surface form of the workpiece is analysed to determine characteristics of curvature of the surface, and these characteristics are used to determine the size and form required for a tool to apply shaping treatment to all parts of the workpiece surface. Measurements of the actual workpiece are then compared with data relating to the required workpiece form, to determine the amount and distribution of material to be removed from the workpiece. A tool path for moving the tool over the workpiece to achieve the required shaping operation is then determined, and the tool and tool path data are provided to a shaping machine to carry out the shaping operation. The shaping tool may comprise an elastomeric body covered in a flexible cloth on which rigid pellets containing abrasive material are fixed. The specification discloses methods of manufacturing such tools, and also discloses methods for conditioning the pelleted cloth. There is also described a method of determining permissible amounts of tool offset to ensure smooth cutting of the workpiece.
Inventors:
BEAUCAMP ANTHONY (GB)
Application Number:
PCT/GB2017/053773
Publication Date:
August 16, 2018
Filing Date:
December 15, 2017
Export Citation:
Assignee:
ZEEKO INNOVATIONS LTD (GB)
International Classes:
B24B53/06; B24B13/01; B24B49/02; B24B49/12; B24B49/18; B24B53/02; B24D13/14; B24D18/00
Domestic Patent References:
| WO2005068133A1 | 2005-07-28 | |||
| WO2016051121A1 | 2016-04-07 | |||
| WO2001074535A1 | 2001-10-11 |
Foreign References:
| EP0913229A1 | 1999-05-06 | |||
| CN103949970A | 2014-07-30 | |||
| DE202015001082U1 | 2015-02-24 | |||
| EP1886764A1 | 2008-02-13 | |||
| US20050202754A1 | 2005-09-15 | |||
| US5910471A | 1999-06-08 | |||
| EP0650803A1 | 1995-05-03 | |||
| US6471733B1 | 2002-10-29 | |||
| US20120289125A1 | 2012-11-15 | |||
| EP1369201A1 | 2003-12-10 | |||
| US6572463B1 | 2003-06-03 |
Attorney, Agent or Firm:
BERESFORD CRUMP LLP (GB)
Download PDF: