Hydraulic driven press
US4116122A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Oct 11, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/8858
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hydraulic driven press for embossing, bending, stamping, especially fine or precision blanking, comprising a plunger or ram guided in an upright or stand. The plunger or ram is supported at the stand by means of pressure chambers and a piston, the pressure chambers comprising at least one actuation pressure compartment and a counter pressure compartment which are supplied by a pump or the like with a pressurized medium. Devices measure and determine the displacement path of the plunger or ram and the plunger or ram speed as well as the delivered quantity of pressurized medium. There is also provided a regulation device for regulating plunger or ram movement as a function of the aforementioned measurement values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.