Apparatus for honing cycloidal surfaces
AssigneeEx-Cell-O Corporation
InventorAlbin S. Czubak
Life of this patent
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Abstract
An apparatus for abrading and finishing the inner surface of an unusual shape, for example the inner ring of a gerotor device, with a tool holder adapted to carry honing stones for movement along the part surface and driven by a mating part engaging a stationary ring mounted inside the assembly and affixed to the drive spindle housing. The stationary ring has an identical shape to the workpiece being machined to guide and synchronize the tool holder in an eccentric path during the abrading operation and the workpiece and stationary ring are orientated to maintain the synchronous relationship. The apparatus while being rotated is also reciprocated transversely to the workpiece surface causing the stones to move in a helical path.
Claims10
A honing machine useful for honing a gerotor ring workpiece having a cycloidal shape, comprising housing means movable in reciprocating fashion, spindle means disposed in said housing means for rotation about a spindle axis and reciprocable with said housing means, outer body means affixedly held to said housing means and having a cycloidal shaped outer gear means, and an inner body means coupled to said spindle means and having inner gear means eccentrically rotatable in said outer gear means, said inner body means having a bearing means interacting between said inner body means and outer body means to allow transverse motion of said inner body means perpendicular to the spindle axis during honing, a tool holder assembly means affixedly held to said inner body means having a plurality of tool holder means pivotally held to said assembly means and having an actuating means for urging said tool holder means on an arc toward the workpiece during machining, a retracting means for disengaging said tool holder means from the workpiece.
A honing machine useful for honing a gerotor ring workpiece having a cycloidal shape with a plurality of lobes, comprising housing means movable in reciprocating fashion, spindle means disposed in said housing for eccentric rotation about a spindle axis and reciprocable with said housing means, outer body means affixedly held to said housing means and carrying a gerotor ring gear with a lobed, cycloidal shape corresponding to that of the workpiece and aligned therewith and an inner body means coupled to said spindle means and carrying a star-shaped driving gear rotated eccentrically in said gerotor ring gear, said inner body means having a bearing means interacting between said inner body means and said outer body means to allow transverse motion of said inner body means perpendicular to the spindle axis during honing, a tool holder assembly means affixedly held to said inner body means having a plurality of tool holder means pivotally held to said assembly means and having an actuating means for urging said tool holder means on an arc toward the workpiece during machining, a retracting means for disengaging said tool holder means from the workpiece.
Dependencies are inferred from the claim text.