Metal working – Convertible metal working machine
Patent
1996-05-10
1998-09-22
Briggs, William R.
Metal working
Convertible metal working machine
144 351, 1442861, 409190, 409203, B23Q 2300, B27F 500, B27C 500
Patent
active
058096310
ABSTRACT:
A multi-axis machining apparatus including structure for positioning a workpiece in a precise and repeatable manner in relation to a tool bit. The multi-axis machining apparatus includes a main table forming a horizontally disposed upper surface and having an opening for mounting a first tool in an inverted position therein and for projecting a first bit upward through the opening and above said upper surface. The horizontal upper surface has coplanar first and second axes intersecting each other in perpendicular relationship and the opening is centered on a vertical third axis, intersecting the first and second axes in perpendicular relationship therewith. A fence structure may be attached or formed integral to the carriage assembly for guiding movements of a workpiece along the upper surface of the main table. A second table assembly is attachable to the underside of the first table. A carriage assembly may be operatively engaged to the main table for moving the carriage assembly in a direction parallel to the second axis. The carriage assembly may include a carriage operatively engaged therein. A second tool having a second bit oriented in a downward position parallel to the third axis may be mounted to the carriage. A positioner assembly permits variable movement of the carriage assembly and fence structure in a direction parallel to the second axis in a precise and repeatable manner. For use in conjunction with the first tool, other table assemblies may be attached to the carriage assembly for performing machining operations on a workpiece.
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