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US 5,967,008 AGranted
Screw machine stock stop
AssigneeThe Shane Group, Inc.
InventorMark Daniels
Life of this patent
Estimating the term…
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AssigneeThe Shane Group, Inc.
InventorMark Daniels
Estimating the term…
A stock stop for screw machines and the like for determining bar stock positioning and which is capable of sensing short stock. The stock stop includes a housing affixed to the machine tool having a slidable sleeve in which a threaded stop is adjustably positioned. A spring biases the sleeve and stop toward the advancing bar and the sleeve is displaced to a stop position by the advancing bar stock. Motion multiplying means multiply the sleeve movement upon engagement by the bar stock to actuate a proximity switch indicating proper advancement of the bar stock and permitting continued machine tool operation. As the components of the stock stop are encased and protected against contamination, a high degree of reliability is attained while providing accurate machine tool control with respect to the presence of adequate bar stock for machining.
A stock stop for turning machine tools for determining the axial position of advancing bar stock comprising, in combination, a base, means defined on said base for attaching said base to a turning machine tool, a housing defined on said base, a bore defined in said housing, a hollow sleeve slidably mounted in said housing axially movable between extended and bar stop positions, said sleeve having a threaded bore, a threaded stop screw threaded into said sleeve bore having an exterior head adapted to be engaged by the end of advancing bar stock, stops associated with said sleeve axially retaining said sleeve at said extended and bar stop positions, an electrical proximity switch mounted on said base, and motion multiplying switch operating means mounted on said base operatively associated with said sleeve and said switch operating said switch in accordance with the position of said sleeve.
A stock stop for turning machine tools for determining the axial position of advancing bar stock comprising, in combination, a base, means defined on said base for attaching said base to a turning machine tool, a housing defined on said base, a bore defined in said housing, a hollow sleeve slidably mounted in said housing axially movable between extended and bar stop positions, said sleeve having a threaded bore, a threaded stop screw threaded into said sleeve bore having an exterior head adapted to be engaged by the end of advancing bar stock, stops associated with said sleeve axially retaining said sleeve at said extended and bar stop positions, an electrical proximity switch mounted on said base, switch operating means mounted on said base operatively associated with said sleeve and said switch operating said switch in accordance with the position of said sleeve, and a spring located in said housing interposed between said housing and said sleeve axially biasing said sleeve toward said extended position.
Dependencies are inferred from the claim text.