Method and apparatus for detecting pallet full load state in sheet metal machining line and method and apparatus for controlling sheet metal machining line and work identifying apparatus
US6052627A · kind A · utility
Inventor
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/116
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for detecting a pallet full load state determines a pallet full load state while switching the upper limit value of the mounting height of workpieces according to workpiece size. The cell controller of an apparatus for controlling a sheet metal machining line estimates an occurrence or non-occurrence of a pallet full load state defined as a function of the overall height or the total weight of the workpieces loaded on the carrier pallet by analyzing the machining schedule when a machined workpiece is loaded on the carrier pallet and has a replacing carrier pallet good for the next workpiece to be loaded stand-by whenever appropriate. A workpiece identifying apparatus determines the XY dimensions of a batch of workpieces on a pallet by arranging a number of absolute reference points arranged on the pallet and a number of relative reference points arranged on the workpieces and calculating the differentials between the absolute reference points and the corresponding relative reference points and the XY dimensions of a square defined on the pallet. The workpiece identifying apparatus additionally determines the material of the workpieces from the surface images of the wor…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.