Machine tool with tool changing device

Details Machine tool with tool changing device Machine tool with tool changing device

1984-12-17

1987-10-13

Weidenfeld, Gil

Metal working

Plural diverse manufacturing apparatus including means for...

Common reciprocating support for spaced tools

82 36R, B23Q 3157

Patent

active

046988980

ABSTRACT:
A numerically controlled machine tool includes a rotating tool in the form of a changeable tool block and an associated tool changing device. The tool-changing device includes a double-sided changing arm pivotable about an axis parallel to the spindle axis and includes a tool gripper for the transfer of tools between the spindle head and a tool magazine at each end. The tool block is clampable by the clamping device in radially differing positions on the spindle head. For this purpose, the tool block and the spindle head are provided with pointed teeth serving as clamping surfaces. The changing arm is longitudinally displaceable for the radial setting of the tool block. The clamping device further includes a spring device supported at the spindle head for applying the clamping force and an actuating device mounted on a separate carriage for applying the releasing force. The clamping device is so designed that, during the release procedure, it simultaneously lifts the tool block from the spindle head, and the actuating device of the clamping device is so connected to the changing arm that it moves the changing arm synchronously with the tool block during the raising of the tool block.

REFERENCES:
patent: 3587164 (1971-06-01), Davern
patent: 3762271 (1973-10-01), Poincenot
patent: 3765291 (1973-10-01), Stenfeldt
patent: 4119213 (1978-10-01), Sato et al.
patent: 4141133 (1979-02-01), Grinage
patent: 4206665 (1980-06-01), Schurfeld et al.
patent: 4510829 (1985-04-01), Kintzel et al.

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