Reaction force transfer system
View Patent ↗Reaction force transfer system includes a frame and a machine base supported by the frame through passive isolation structure. A carriage is supported for motion with respect to the machine base and a motor is provided having a stator coupled to the frame and a forcer coupled to the carriage to move the carriage with respect to the machine base.
1. Reaction force transfer system comprising:
a frame;
a machine base supported by the frame through passive isolation structure;
a carriage supported for motion with respect to the machine base; and
a motor having a stator coupled to the frame and a forcer coupled to the carriage to move the carriage with respect to the machine base wherein the carriage is constrained to a single degree-of-freedom of motion with respect to the machine base, wherein the motor stator is constrained to a single degree-of-freedom by a linear bearing on the machine base.
2. The system of claim 1 wherein the linear bearing set is selected from the group consisting of ball, roller, aerostatic, hydrostatic, or plain.
3. Reaction force transfer system comprising:
a frame;
a machine base supported by the frame through passive isolation structure;
a carriage supported for motion with respect to the machine base; and
a motor having a stator coupled to the frame and a forcer coupled to the carriage to move the carriage with respect to the machine base, wherein the stator is coupled to the frame so as to constrain the stator to only a single degree-of-freedom of motion with respect to the frame, while allowing free movement in the other 5 degrees-of-freedom.
4. The system of claim 3 wherein the stator is coupled to the frame by one or more elements selected from the group consisting of spherical bearings, universal joints, rotational bearings, linear bearings, planar bearings, and flexural elements.
5. The system of claim 3 wherein the stator is coupled to the frame by a series combination of a 2-degree-of-freedom coupling and a 3-degree-of-freedom coupling.
6. The system of claim 5 wherein the 2-degree-of-freedom coupling is a universal joint and the 3-degree-of-freedom coupling is a planar bearing.
7. The system of claim 4 wherein the flexural element is a notch hinge flexure having high stiffness on-axis and high compliance in the other 5 degrees-of-freedom.
8. Reaction force transfer system comprising;
a frame;
a machine base supported by the frame through passive isolation structure;
a carriage supported for motion with respect to the machine base; and
a motor having a stator coupled to the frame and a forcer coupled to the carriage to move the carriage with respect to the machine base wherein the carriage is constrained to a single degree-of-freedom of motion with respect to the machine base, wherein the carriage is constrained to a single degree-of-freedom of motion with respect to the machine base by a linear bearing set.
9. The system of claim 8 wherein the linear bearing set is selected from the group consisting of ball, roller, aerostatic, or hydrostatic.