Cutting – With means to convey work relative to tool station – Rectilinear movement only
Patent
1997-07-29
2000-10-03
Rada, Rinaldi I.
Cutting
With means to convey work relative to tool station
Rectilinear movement only
83552, 74 8915, B26D 701
Patent
active
061257311
ABSTRACT:
A ball screw spline shaft 41 is driven for rotation by a drive motor 53 provided at least on one end thereof. When a feeder ball nut 61 moves in response to the rotation of the ball screw spline shaft 41 from one end of the ball screw spline shaft 41 toward the other end, intermediate supports 65 on both sides thereof travel in the same direction at a lower speed on a support guide 67 and the ball screw spline shaft 41. As a result, the intermediate supports 65 on both sides are located in positions around the middle of the distances between the feeder ball nut and both of the ends and moves while supporting the ball screw spline shaft 41. This increases the critical speed of the ball screw spline shaft 41 to increase the speed of rotation of the ball screw spline shaft 41.
REFERENCES:
patent: 4939946 (1990-07-01), Teramachi
patent: 5012687 (1991-05-01), Hoshide
patent: 5094118 (1992-03-01), Morita
patent: 5121647 (1992-06-01), Teramachi
patent: 5193409 (1993-03-01), Babinski
patent: 5228353 (1993-07-01), Katahira et al.
patent: 5291647 (1994-03-01), Fukasawa et al.
patent: 5531557 (1996-07-01), Springer
Hirose Shunzo
Seto Yoshiharu
Amada MFG America Inc.
Rada Rinaldi I.
Tran Kim Ngoc
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