LINEAR MOTION MECHANISM AND SCARA ROBOT
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United States of America
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Issued Date -
Mar 13, 2025
app pub date -
Feb 18, 2022
filing date -
Feb 18, 2022
priority date (Note) -
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Abstract
A linear motion mechanism includes: a shaft extending along a prescribed axis; a structural member provided with a cavity through which the shaft extends; and a spline nut and a ball screw nut that support the shaft so as to be rotatable about the axis and so as to be movable in a direction of the axis, respectively, with respect to the structural member. The spline nut and the ball screw nut are detachably attached to the structural member from both sides sandwiching the structural member via attachment flanges provided thereon. At least one of the spline nut and the ball screw nut is fixed to, inside the cavity, a power transmission member having an outer diameter larger than an outer diameter of one of the attachment flanges provided thereon and is attached to the structural member via an adapter having a larger outer diameter than the power transmission member.
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