System for counterbalancing tool mount loads in a machine tool
April 11, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1778258 Measuring apparatus Final servo control in NC systems Programmable air pressure counterbalance system for a manipulator Method and apparatus for controlling increment type position control apparatus Method and apparatus for boring a tapered, curved I.D. tubular casting mold Method for servicing a steam generator Method of operating a remotely controlled tool positioning table Robot with light-weight, inertia-free programming device Industrial robot system InventorAssigneeApplicationNo. 06/851041 filed on 04/11/1986US Classes:74/89.32, Carriage surrounding, guided by, and primarily supported by member other than screw (e.g., linear guide, etc.)248/654, Hydraulic or pneumatic384/519, Adjustment means384/583, With adjustment means408/235, With counterweight mechanism408/3, WITH MEANS TO REGULATE OPERATION BY USE OF TEMPLET, TAPE, CARD, OR OTHER REPLACEABLE INFORMATION SUPPLY408/88, Tool having shiftable tool-axis414/719, Return, buffer, or counterweight feature74/479.01, Multiple controlling elements for single controlled element901/48COUNTERBALANCEExaminersPrimary: Herrmann, Allan D.Attorney, Agent or FirmInternational ClassesB23Q 1/48 (20060101)B23B 39/00 (20060101) B23B 39/14 (20060101) B23Q 1/25 (20060101) B23Q 11/00 (20060101) AbstractThe 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. | |
