Vertical multiple-spindle machine

Details Vertical multiple-spindle machine Vertical multiple-spindle machine

1976-04-29

1977-04-19

Whitehead, Harold D.

Work holders

With fluid means

269 57, B23Q 308

Patent

active

040184293

ABSTRACT:
A vertical multiple-spindle machine relating to metal cutting machines. This machine comprises a stationary column on which is installed a rotary worktable mounting hydraulic clamping devices and provided with fluid inlet ducts. The stationary column is provided with passages for feeding fluid medium to he hydraulic clamping devices through said ducts, with the worktable in a fixed position. The column is also provided with a circular groove which is arranged to communicate with the fluid source and is formed so that it has portions curved about the outlets from the passages whereby said groove connects the worktable fluid ducts with the fluid source during the rotation of the worktable. This constructional arrangement makes it possible to materially reduce fluid leakage, thereby providing stability of the required fluid pressure in the clamping devices, improving the accuracy of the machine and decreasing waste of power.

REFERENCES:
patent: 3658315 (1972-04-01), Boucherie

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