Servo hydraulic press
US11318697B2 · kind B2 · utility
0Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2017 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Apr 6, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a servo hydraulic press for sheet metal forming. The press comprises a hydraulic cylinder, at least two servo motors and at least two pumps for supplying pressurized fluid to the hydraulic cylinder, where each servo motor drives at least one pump. The servo motors are operable at variable speed, and the first servo motor and first pump are operable in an opposite direction to the second servo motor and the second pump. With this arrangement, the servo hydraulic press may be operated at low speed without causing damage to the pumps or motors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.