High speed attachment for milling machines and method of use

Details High speed attachment for milling machines and method of use High speed attachment for milling machines and method of use

1998-09-09

1999-03-09

Briggs, William

Metal working

Method of mechanical manufacture

Assembling or joining

409131, 409230, B23P 1700, B23C 900

Patent

active

058784764

ABSTRACT:
A variable speed milling machine attachment, and a method for its use, that is efficiently configured for minimal reduction of the spindle-to-table distance of a milling machine, such as the well-known Bridgeport miller, and which when attached to a milling machine having a maximum spindle speed of approximately 5,000 rpm, allows an operator to perform high speed milling, grinding, drilling, and engraving functions at selected sustained spindle speeds greater than 5,000 rpm, up to and including sustained spindle speeds in excess of 20,000 rpm. The attachment also has a visual display that provides an operator with indications of actual spindle speed for precise initial selection of the proper spindle speed for an intended machining task.

REFERENCES:
patent: 3641873 (1972-02-01), Jacques
patent: 4077736 (1978-03-01), Hutchens
patent: 4679970 (1987-07-01), Lohneis et al.
patent: 4716657 (1988-01-01), Collingwood
patent: 5562373 (1996-10-01), Williangham et al.

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