High accuracy displacement device with bearing assembly

A device for adjusting a position of a tool, the device comprising:

• a threaded shaft having a first end and a second end and a shaft axis extending therebetween;
• a motor configured to actuate the threaded shaft to move in a direction of the shaft axis, the motor being operatively coupled to the threaded shaft;
• a carriage coupled to the tool;
• a linear bearing coupled to the carriage;
• and
• a bearing assembly coupled to the threaded shaft and the carriage, the bearing assembly attaching the threaded shaft to the linear bearing and permitting a movement of the carriage with respect to the threaded shaft,
• wherein the movement of the carriage allows an angular position of the tool to be adjusted, the angular position defined by an orientation of the tool relative to the shaft axis.

An automated system for adjusting a position of a tool, the automated system comprising:

• a device comprising:
• a threaded shaft having a first end and a second end and a shaft axis extending therebetween;
• a motor that actuates the threaded shaft to move in a direction of the shaft axis, the motor being operatively coupled to the threaded shaft;
• a carriage coupled to the tool;
• a linear bearing coupled to the carriage;
• and
• a bearing assembly coupled to the threaded shaft and the carriage, the bearing assembly attaching the threaded shaft to the linear bearing and permitting a movement of the carriage with respect to the threaded shaft, wherein the movement of the carriage allows the position of the tool to be adjusted;
• and
• a computing device comprising a processor operatively coupled to the device, and a non-transitory computer readable storage medium with a computer program including instructions executable by the processor causing the processor to:
• calculate a change in displacement of the threaded shaft that results in a desired position of the tool relative to the threaded shaft;
• and
• output the displacement of the threaded shaft to the motor.