Machine tool

Details Machine tool Machine tool

2005-06-07

2005-06-07

Banks, Derris H. (Department: 3722)

Gear cutting, milling, or planing

Milling

Machine frame

C409S235000, C408S234000

Reexamination Certificate

active

06902362

ABSTRACT:
In an automatic machine tool (1) comprising a spindle mounting slide (4) which is driven by a linear electric motor (9) in a vertical direction (V) in a slideway (8), the slide (4) is equipped with a counterweight device (13) comprising a cylinder (19) within which there slides a piston17. The cylinder (19) and the piston (17) form a first balancing chamber (31) and a second counterbalancing chamber (32), the second counterbalancing chamber (32) being connected to a circuit (33) for feeding a fluid (34) under pressure.

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European Search Report Sep. 25, 2003.

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