Machine tool main shaft balancer

Details Machine tool main shaft balancer Machine tool main shaft balancer

2005-04-26

2005-04-26

Nguyen, Xuan Lan (Department: 3683)

Spring devices

Resilient shock or vibration absorber

Tool movement dampening

C267S064110

Reexamination Certificate

active

06883789

ABSTRACT:
A machine tool main spindle balancer wherein the annular sealing members of a gas spring that supports the main spindle unit to reduce the load of an elevating mechanism are easily replaceable.A gas spring of a machine tool main spindle balancer comprises a cylinder body, which is filled with a compressed gas, a rod that extends downward from the inside of cylinder body, a head-side end wall member of cylinder body having a filling valve, a sleeve member forming a circumferential wall around a rod insertion hole mounted hermetically and detachably on a rod-side end wall member, and annular sealing members and mounted on said sleeve member, so that annular sealing members can be replaced easily by discharging the compressed gas, and removing only sleeve member while holding rod on head-side end wall member.

REFERENCES:
patent: 4741518 (1988-05-01), Wallis
patent: 4749013 (1988-06-01), Ducate, Sr.
patent: 4792128 (1988-12-01), Holley
patent: 5098071 (1992-03-01), Umetsu
patent: 5265852 (1993-11-01), Taylor
patent: 2000-153418 (2000-06-01), None
patent: 2001-105256 (2001-04-01), None

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