Parallel mechanism for multi-machining type machining center

Details Parallel mechanism for multi-machining type machining center Parallel mechanism for multi-machining type machining center

1998-10-30

2000-10-24

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Process

7479003, 409201, 409216, 409235, 408236, B23C 112

Patent

active

061356832

ABSTRACT:
A six-degree-of-freedom parallel mechanism is provided for expanding a grade of a spindle. The parallel mechanism has a spindle that turns round a workpiece at a tilting angle of 90.degree. in a workspace, to thereby allow a machining for both vertical and horizontal planes of the workpiece, and a vertical turning process, by a single machining center. A six-axis multi-machining type machining center embodying the parallel mechanism of the present invention is also disclosed. An over-actuated multi-machining type machining center further including over-actuated actuators is presented to solve a problem of driving joints' singularity caused by the parallel mechanism.

REFERENCES:
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patent: 5267818 (1993-12-01), Marantette
patent: 5401128 (1995-03-01), Lindem et al.
patent: 5466085 (1995-11-01), Sheldon et al.
patent: 5575597 (1996-11-01), Bailey et al.
patent: 5715729 (1998-02-01), Toyama et al.
patent: 5941128 (1999-08-01), Toyama et al.
patent: 5960672 (1999-10-01), Pritschow et al.

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