Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent
1994-12-28
1996-07-02
Briggs, William
Metal working
Plural diverse manufacturing apparatus including means for...
Binding or covering and cutting
29DIG56, 29DIG59, 409134, 74608, B23Q 700
Patent
active
055310044
ABSTRACT:
A machining center adapted for use in cutting a workpiece into a desired shape, comprising: a bed having a table for changeably holding a first pallet; a support die disposed in front of the bed to support a second pallet to be changed with the first pallet; a machine housing extending upwardly from the bed to define a cutting compartment enclosing the first pallet, the machine housing having a frontal access opening; a rotary door mounted on the machine housing to openably close the access opening; pivot pins for pivotally supporting the rotary door at central top and bottom edges of the door; a pallet changer disposed beneath the rotary door for exchanging the first and second pallets with each other, the pallet changer including a rotary arm, a vertical cylinder for causing the arm to vertically move from a lower position to an upper position and first and second horizontal cylinders for causing the arm to rotate between a first angular position where the arm remains parallel to the door and a second angular position where the arm becomes perpendicular to the door; and locator pins and locator holes for allowing the rotary arm to engage with the rotary door as the rotary arm moves into the upper position at the second angular position.
REFERENCES:
patent: 4863319 (1989-09-01), Winkler et al.
patent: 4999895 (1991-03-01), Hirose et al.
patent: 5181898 (1993-01-01), Piotrowski
patent: 5265497 (1993-11-01), Curless
patent: 5487414 (1996-01-01), Hayashi
Briggs William
Daewoo Heavy Industries Ltd.
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