Tool magazine having grips capable of maintaining tool gripping

Details Tool magazine having grips capable of maintaining tool gripping Tool magazine having grips capable of maintaining tool gripping

1996-06-07

1997-12-30

Howell, Daniel W.

Tool changing

Including machine tool or component

Rotary spindle machine tool

483 30, 483 54, 483 59, 483 67, 483902, 294 8722, 294106, 294115, B23Q 3157

Patent

active

057023360

ABSTRACT:
A tool magazine having a plurality of grips for gripping tool holders for use in a machine tool. The tool holder gripped at the grip is transferred to a holder portion of a spindle of a machine tool, or the tool holder held in the holder portion is transferred to the grip. The magazine has a magazine disk rotatable about a horizontal axis for tool indexing operation. The tool holder extends in the horizontal direction when it is gripped by the grip, and the spindle also extends in the horizontal direction. Each grip includes a pair of first and second arm members pivotally supported on the magazine disk and extending in a radial direction of the magazine disk. The first and second arm members has tool gripping portions movable toward and away from each other for gripping and releasing the tool holder. A compression spring is provided between the pair of first and second arm members for normally urging the first and second arm members to their tool gripping positions. First and second gear portions are provided in meshing relation to the first and second arm members, respectively. If lower side arm member is moved by the weight of the tool holder, the upper side arm member is moved interlockingly and symmetrically to compress the compression spring.

REFERENCES:
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patent: 4117586 (1978-10-01), Uchida et al.
patent: 4377305 (1983-03-01), Horvath
patent: 4457659 (1984-07-01), Watanabe
patent: 4845834 (1989-07-01), Watson
patent: 4914803 (1990-04-01), Kitamura et al.
patent: 5081762 (1992-01-01), Kin
patent: 5102177 (1992-04-01), Dreisig et al.
patent: 5267766 (1993-12-01), Geissler
patent: 5372568 (1994-12-01), Matsuoka

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