Adapter table apparatus having sensor function
AssigneeKatayama Denki Ltd.
InventorNoriaki Katayama
Life of this patent
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Abstract
Electrical contact between a probe and a holder and/or a workpiece is detected by a detection circuit in a machine tool having a spindle located above a movable table. The probe is mounted on a chuck which is, in turn, mounted on the spindle. An arm is also mounted on the spindle. The probe, chuck and arm all form an electrically conductive assembly. A magnetic electrode or a clip electrode is mounted on the assembly, each electrode being electrically connected to the detection circuit.
Claims12
A sensing apparatus in a machine tool having a spindle above a movable table, the apparatus comprising:
- a) an electrically conductive holder for holding an electrically conductive workpiece, the holder being electrically insulated from and mounted on the movable table;
- b) an electrically conductive assembly, including a chuck mounted on the spindle, a probe mounted on the chuck, and an arm mounted on the spindle and extending away from the probe;
- c) a magnetic electrode magnetically attracted to, and mounted on, the electrically conductive assembly;
- and
- d) means electrically connected to the magnetic electrode, and operative for detecting electrical contact between the probe and one of the holder and the workpiece.
A sensing apparatus in a machine tool having a spindle above a movable table, the apparatus comprising:
- a) an electrically conductive holder for holding an electrically conductive workpiece, the holder being electrically insulated from and mounted on the movable table;
- b) an electrically conductive assembly, including a chuck mounted on the spindle, a probe mounted on the chuck, and an arm mounted on the spindle and extending away from the probe;
- c) a clip electrode clipped on the electrically conductive assembly;
- and
- d) means electrically connected to the clip electrode, and operative for detecting electrical contact between the probe and one of the holder and the workpiece.
Dependencies are inferred from the claim text.