Industrial robot
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United States of America Patent
Stats
-
Jan 28, 1986
Grant Date -
N/A
app pub date -
Feb 28, 1983
filing date -
Mar 1, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A positioning apparatus for positioning an arm of an industrial robot comprises a frame member connected to the robot arm and being movably supported by a frame-supporting member. The frame-supporting member is movably mounted within an upstanding hollow sleeve of a stationary base, and a bearing is formed between an outer peripheral surface portion of the frame-supporting member and an inner peripheral surface portion of the base hollow sleeve portion for slidably mounting the frame-supporting member to undergo linear and angular sliding movements relative to the base hollow sleeve portion. A rotary motor effects angular driving movement of the frame-supporting member, and a linear motor effects linear movement of the frame-supporting member to thereby accurately position the robot arm. By such a construction, the frame-supporting member is mounted for angular and linear sliding movements relative to the base hollow sleeve portion by a single bearing.
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