Spindle supporting box structure, a damping structure, a gas sup

Details Spindle supporting box structure, a damping structure, a gas sup Spindle supporting box structure, a damping structure, a gas sup

1997-10-15

1999-11-23

Pitts, Andrea L.

Gear cutting, milling, or planing

Milling

With means to dampen vibration

408143, 408235, 409191, 409237, B23C 130

Patent

active

059889594

ABSTRACT:
A spindle supporting box structure, wherein longitudinal parts forming both ends of lateral parts at each of right and left longitudinal side faces facing, with a spindle therebetween, in a direction almost perpendicular to longitudinal side faces facing in a front-back direction are formed by longitudinal tubular members having suitable flexural rigidity. A damping structure wherein required frameworks of structures are formed by tubular members and wherein concrete is filled in the tubular members and then solidified. As an alternative, a powdery damping material or a jelly damping material is airtightly sealed in the tubular members. An inner space of one or more of the tubular members is made into a gas pressurized tank wherein a balance cylinder is connected to the gas pressurized tank and wherein the gas in the gas pressurized tank directly acts on a cylinder chamber of the balance cylinder.

REFERENCES:
patent: 3580133 (1971-05-01), Berthiez
patent: 3684395 (1972-08-01), Nurakami
patent: 3707333 (1972-12-01), Kitamura et al.
patent: 4657455 (1987-04-01), Rogers et al.
patent: 5259710 (1993-11-01), Charles
patent: 5388935 (1995-02-01), Sheldon
patent: 5538373 (1996-07-01), Kirkham
patent: 5556242 (1996-09-01), Sheldon et al.
patent: 5662568 (1997-09-01), Lindem

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