Method and apparatus for automatically positioning a press machine slide
US6654661B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | May 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B15/142
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A control system enables a press operator to selectively position the slide at a specific resting location corresponding to an absolute dimension of the slide travel path, such as an angular measure relative to the top dead center position of the press machine crankshaft. A programmable limit switch module manages the operation of a brake-clutch combination by commanding a clutch control circuit to actuate disengagement of the clutch at the proper moment so that the slide will subsequently come to rest at the selected resting location. The module includes a programmable limit switch connected to a press speed resolver and a dedicated on-board processor configured to receive the speed data. The processor collects the speed data using a polling operation having very low scan time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.