Cutting – Rotatable disc tool pair or tool and carrier – Tool pair comprises rotatable tools
Patent
1989-09-05
1991-02-05
Phan, Hien H.
Cutting
Rotatable disc tool pair or tool and carrier
Tool pair comprises rotatable tools
83504, 83508003, 83701, 83859, 59 78001, B26D 122, B26D 312, B26D 726
Patent
active
049894862
ABSTRACT:
A system for automatically positioning a plurality of tool-holding carriages along an elongate guide member utilizes a single drive member to move all of the carriages simultaneously. The carriages each have clutches for selectively engaging or disengaging the drive member so that the carriages can be moved relative to each other by the drive member, and can be moved simultaneously in opposite directions along the guide member if desired. The drive member is capable of moving each carriage throughout its respective maximum range of movement with a continuous motion, without any reversal of the drive member or any disengagement of the respective carriage from the drive member. Each carriage has an electrically-powered position sensor capable of transmitting different discrete signals for different positions of the carriage so that it provides absolute indications of position rather than indications which are relative to some reference position. A sealing enclosure surrounds both the drive member and the carriages, so as to prevent the entry into the enclosure of airborne particles, and likewise surrounds all fluid and electrical power conduits to the carriages. Automatic positioning of the various carriages is simplified by precisely positioning them sequentially, in an order corresponding to progressively larger distances of movement required for each carriage to reach its desired position.
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Miller William R.
Sexton, Jr. Earl A.
Phan Hien H.
Tidland Corporation
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