Title:
NON-CONTACT TOOL SENSOR
Document Type and Number:
WIPO Patent Application WO1999000674
Kind Code:
A3
Abstract:
A non-contact detector means (3) is mounted on a movable wand (4) whose movement is controlled between a non-detecting home position and a sensing position where the detector is in proximity with one position of a tool (2) in the path of movement of the tool (2). The detector (3) includes a magnetic field generator which may be a magnet carried by the wand (4). A magnetic field sensor is also carried by the wand (4) and detects a change in the magnetic field generated by the magnet when the wand (4) is in the detecting position in proximity to the one position of the tool (2). The wand (4) is moved in either a rotary or linear path by a rotary or linear actuator (5) or drive. A linear actuator may be used to linearly advance the sensor (3) between a plurality of successive positions, each associated with a separate one of a plurality of linearly arranged tools (2) to detect a change in the magnetic field at each position if a complete tool (2) is present at each tool position.
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Inventors:
KIM NAM H (US)
Application Number:
PCT/US1998/013756
Publication Date:
March 25, 1999
Filing Date:
June 30, 1998
Export Citation:
Assignee:
KIM NAM H (US)
International Classes:
B23Q17/00; B23Q17/09; (IPC1-7): G01V1/00
Foreign References:
| US4748563A | 1988-05-31 |
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