Electrode tool holder assembly for electrical machining apparatus
AssigneeAteliers des Charmilles S.A.
InventorBenno Ibo Bonga
Life of this patent
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Abstract
A tool holder assembly, particularly for holding an electrode tool on the end of the quill or ram of an electro-erosion machining apparatus, comprising a tapered bore disposed at the end of the quill or ram and a taper-shank electrode tool fitting the tapered bore, combined with manually releasable spring biased means for exerting on the electrode tool taper-shank a force urging it into engagement with the tapered bore, and with manually operable means for exerting on the electrode tool taper-shank a force in an opposite direction for disconnecting the taper-shank from the tapered bore. Angular positioning abutment means are also provided for angularly locating the electrode tool in the holder assembly.
Claims6
An electrode tool holder assembly for removably mounting an electrode tool on the ram of an electro-erosion machine, said holder assembly comprising an electrode supporting mandrel having a taper-shank portion, a tapered bore disposed in the end of said ram and adapted for coaxial engagement with said mandrel taper-shank portion, a projecting integral prong at the end of said mandrel taper-shank portion, a longitudinally displaceable sleeve disposed about the end of said ram, a peg element disposed transversely relative to the longitudinal axis of said mandrel taper-shank portion and displaceable along said londitudinal axis, means on said peg element for locking engagement with said projecting prong by rotation of said mandrel taper-shank portion relative to said peg element, biasing means for normally urging said peg element in a direction pulling said mandrel taper-shank portion in engagement with said tapered bore, abutment means on said sleeve engageable with said peg element for displacing said peg element and said mandrel taper-shank portion in a direction separating said mandrel taper-shank portion from said tapered bore when said sleeve is displaced in a predetermined direction relative to said ram, and means for angularly locating said mandrel taper-shank portion relative to said tapered bore about said longitudinal axis.
Dependencies are inferred from the claim text.