Positioning apparatus for bending machine
US6422055B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Mar 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D5/002
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A positioning apparatus (30) for a workpiece includes a base (310) with a shoulder (312), a positioning block (330) and a circuit. The positioning block includes an upper block (332) secured on the shoulder, and a lower block (334) having a front surface (336). A lay of insulator (320) is compressed between the base and the positioning block. The circuit includes a power source (50) and a relay (60). The power source provides direct current voltage. The relay comprises a coil (601) electrically connected between the power source and the positioning block, and a normal-open switch (603) electrically connected between the power source and a manipulator which acts on the workpiece. When the workpiece contacts the front surface of the positioning block, the coil is electrified and the normal-open switch closes. The interface of the manipulator turns to high level, and the manipulator starts its next programmed motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.