System for counterbalancing tool mount loads in a machine tool
US4696197A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1986 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/92
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention is a system to counterbalance the static torque produced by a weight mounted to a beam member which in turn is rotatably mounted to a frame member, the beam member rotatable about the axis of rotation which is substantially aligned with the longitudinal axis of the frame member. The system comprises a support member rotatively mounted to the frame member and coupled to the beam member for simultaneously rotation about the axis of rotation. A pressurizable power actuator having a first end pivotally mounted to the frame member and a second end having an output shaft for producing an output force proportional to the pressure level within the actuator. A coupling device is included connecting the output shaft to the support member. A pressure level control system is provided for maintaining the pressure level within the actuator to produce a torque sufficient to counterbalance the torque produced by the weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.