Abrading – Machine – Rotary tool
Reexamination Certificate
1999-12-30
2001-01-23
Banks, Derris H. (Department: 3723)
Abrading
Machine
Rotary tool
C451S259000, C451S268000, C451S269000
Reexamination Certificate
active
06176767
ABSTRACT:
The present invention relates to a double face abrading machine, i.e. a machine tool designed for simultaneously removing material from two plane-parallel surfaces of a work piece, and particularly a double face grinding machine for grinding the opposed side surfaces of bearing rings and of the type defined in the preamble of the accompanying claim
1
.
Double face abraders, such as grinding machines, lapping machines, honing machines and also milling machines, etcetera, which are intended simultaneosuly to machine two plane-parallel side surfaces of a work piece are often designed with two tools mounted on slides on two shafts extending in opposite directions away from the machining gap and which are equipped with separate driving motors. Furthermore there are feeding equipment and driving means for the slides, feeding-in device for the work pieces to be machined and dressing tools e.g. for grinding wheels or the like, etcetera
Taken together this means that the earlier machines have been bulky and space-requiring.
The purpose of the present invention is to provide a machine of the type specified hereabove which is very compact, thereby also improving the rigidity and exactness of the machine, and this has been obtained by giving the machine the features defined in the accompanying claim
1
.
REFERENCES:
patent: 2045488 (1936-06-01), Oubridge
patent: 4361988 (1982-12-01), Gramlich
patent: 5123218 (1992-06-01), Karlsrud
patent: 381 111 (1964-09-01), None
patent: 1218853 (1960-05-01), None
Banks Derris H.
Burns Doane Swecker & Mathis L.L.P.
Lidkoping Machine Tools AB
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