发明名称 |
Self-centering end effector |
摘要 |
An end effector (30) adap ttachment to and accurate positioning by a robot is provided for positioning a channel-shaped workpiece (10) at a desired position and drilling an accurately located positioning hole in the work piece, even if the workpiece is curved or has a compound contour. The end effector (30) includes a conventional speeder assembly (68) with a taper that can be grasped by the robot and rotated for transfer of torque to the speeder assembly. A flange base (54) is attached to the speeder assembly (68) and has a central opening to accommodate a drill bit (67). A housing assembly (50) is slidably mounted around the flange base (54) through a linear bearing (109). An index shaft (32) is slidably mounted partially within the housing assembly (50) through a second linear bearing (110). A collet (36) is concentrically mounted slidably about the index shaft (32). The collet (36) is adapted to expand radially when it is forced over a wider portion (34) of the index shaft (32). The radial expansion of the collet (36) provides the necessary force to position the channel-shaped workpiece (10).
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申请公布号 |
US6012877(A) |
申请公布日期 |
2000.01.11 |
申请号 |
US19960768169 |
申请日期 |
1996.12.13 |
申请人 |
THE BOEING COMPANY |
发明人 |
MCCOWIN, PETER D.;CORDY, DENNIS M.;SMITH, RONALD J.;WAGNER, DAVID L. |
分类号 |
B23B49/02;B23Q3/06;(IPC1-7):B23B35/00 |
主分类号 |
B23B49/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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