Adaptive tool holder for robotic arm
AssigneeNational Chung Cheng University
InventorsPai-Chen Lin, Zhen-Wei Zhuang
Life of this patent
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Abstract
An adaptive tool holder of a robotic arm includes: a tool shank; a hollow barrel seat, connected below the tool shank; a ball spline with an upper section, an outer convex ring and a lower section; a spring seat, disposed within the barrel seat and located on the upper section of the ball spline; an elastic element, disposed within the barrel seat, where both ends of the elastic element abut against a bottom of the tool shank and the spring seat respectively; a spring guide pin, disposed through the spring seat; a connecting post, disposed within the lower section of the ball spline, where a top of the connecting post is connected and fixed to the spring guide pin; and a friction stir welding tool inserted and fixed detachably at a bottom end of the connecting post.
Claims10
An adaptive tool holder for-friction stir welding of a robotic arm, comprising:
- a tool shank;
- a hollow barrel seat, connected below the tool shank;
- a ball spline with an upper section, an outer convex ring and a lower section, wherein the outer convex ring is detachably fixed at a bottom of the barrel seat, so that the upper section is inside the barrel seat and the lower section is outside the barrel seat;
- a spring seat, disposed within the barrel seat and located on the upper section of the ball spline;
- an elastic element, disposed within the barrel seat, wherein both ends of the elastic element abut against a bottom of the tool shank and the spring seat respectively;
- a spring guide pin, disposed through the spring seat;
- a connecting post, disposed within the lower section of the ball spline, wherein a top of the connecting post is connected and fixed to the spring guide pin;
- and
- a friction stir welding tool, inserted and fixed detachably at a bottom end of the connecting post.
Dependencies are inferred from the claim text.