Loading patent…
AssigneeFesto AG & Co.
InventorsSimon Markowski, Andreas Weiss, Thomas Beyerlein, Artem Beger, Bernd Bellingrodt, Manuel Rausch, Daniel Bren, Nicole Skrok, Michael Winkler
Estimating the term…
A rotary drive device has a fluid-actuated rotary drive with a drive housing and a drive unit which is rotative relative thereto. The drive unit includes a drive shaft and a pivot piston, non-rotatably arranged thereon, separating two drive chambers from one another. For controlling the fluid-actuated rotary drive, a control valve arrangement including at least one electrically actuatable control valve is provided, which is attached to the drive housing and in this way is combined with the rotary drive to form a drive assembly that can be handled as a single unit. Furthermore, a robot arm is proposed, which has the rotary drive device as an arm joint connecting two arm members.
A rotary drive device comprising a fluid-actuated rotary drive, which has a drive housing and a drive unit rotatable relative thereto about a main axis of the rotary drive by a controlled fluid application of at least one pivot piston arranged in the drive housing, wherein a drive shaft of the drive unit connected to the pivot piston projects from the drive housing at an axial front side of the drive housing with a drive section enabling a force output, and with a control valve arrangement comprising at least one electrically actuatable control valve, which is fluidically connected via a control fluid channel system to two drive chambers of the rotary drive separated from one another by the pivot piston in the drive housing, and which is designed to control the fluid pressurization of the two drive chambers for rotation and rotative positioning of the drive unit relative to the drive housing, wherein the control valve arrangement is mounted on the drive housing and in this way is combined with the rotary drive to form a drive assembly that can be handled as a single unit.
A robot arm of a robot, comprising at least two arm members connected to one another by means of an arm joint in a relatively pivotable manner, wherein the arm joint is formed by a rotary drive device, wherein the rotary drive device comprises a fluid-actuated rotary drive, which has a drive housing and a drive unit rotatable relative thereto about a main axis of the rotary drive by a controlled fluid application of at least one pivot piston arranged in the drive housing, wherein a drive shaft of the drive unit connected to the pivot piston projects from the drive housing at an axial front side of the drive housing with a drive section enabling a force output, and with a control valve arrangement comprising at least one electrically actuatable control valve, which is fluidically connected via a control fluid channel system to two drive chambers of the rotary drive separated from one another by the pivot piston in the drive housing, and which is designed to control the fluid pressurization of the two drive chambers for rotation and rotative positioning of the drive unit relative to the drive housing, wherein the control valve arrangement is mounted on the drive housing and in this way is combined with the rotary drive to form a drive assembly that can be handled as a single unit, wherein the drive section of the drive shaft and the drive housing of the fluid-operated rotary drive each have a mounting interface to which one of the arm members of the robot arm is mounted.
Dependencies are inferred from the claim text.