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US 4,406,190 AGranted
Bar stock feed apparatus for a machine tool
AssigneeWhite-BSA Tools Ltd.
InventorPeter A. Mason
Life of this patent
Estimating the term…
Abstract
A bar stock feed apparatus for a machine tool has a bar stock support tube for alignment, in use with a workpiece carrier of the machine tool. A fluid pressure-actuated feed means in the form of a pusher tube slides within the tube and is driven by a piston to feed the bar when desired. Fluid is introduced into the support tube forwardly of the piston, and independently of the fluid supplied to the piston, to cushion the bar stock within the tube 15 and thereby minimize undesirable noise during operation.
Claims15
A bar stock feed apparatus comprising:
- (a) a bar stock support tube mounted on support means, said tube defining a space for containing bar stock;
- (b) a workpiece carrier deposited at one end of the support tube to receive bar stock;
- (c) fluid pressure actuated feed means which when actuated urge the bar stock along the support tube toward the workpiece carrier;
- (d) a conduit for introducing hydraulic fluid into the support tube at a location forwardly of the feed means in the direction of bar feed;
- and
- (e) a hydraulic fluid supply system comprising a pump and driving means therefore, and also comprising control means which alternately either permit hydraulic fluid to actuate said fluid pressure actuated feed means, or permit hydraulic fluid to flow into said conduit and hence into said support tube forwardly of said feed means.
3 more elements
Dependencies are inferred from the claim text.