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US 4,288,182 AGranted
Machining apparatus tool feed and retract system
AssigneeLaSalle Machine Tool, Inc.
InventorsJohn Vandenkieboom, Douglas Myers
Life of this patent
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AssigneeLaSalle Machine Tool, Inc.
InventorsJohn Vandenkieboom, Douglas Myers
Estimating the term…
Machining apparatus for machining a workpiece with a work-performing tool comprising a frame on which a tool carrier is mounted for reciprocal movement toward and away from the workpiece and a feed unit for moving the tool carrier between a partially retracted position and a fully retracted tool change position and for moving the tool carrier from the partially retracted position reciprocally through a machining stroke to machine a workpiece. The feed unit includes a drive transmitting assembly which is reciprocally mounted on the frame and which comprises extensible and contractible means connected to the tool carrier. A first drive means reciprocates the drive assembly while the extensible and contractible means remains fixed so as to move the tool carrier reciprocally through a machining stroke and a second drive means actuates extensible and contractible means to move the tool carrier between its partially and fully retracted positions.
Machining apparatus for machining a workpiece with a work-performing tool comprising a frame, a tool carrier movably mounted on said frame for reciprocal movement relative to a workpiece, feed means for reciprocating said tool carrier between a fully retracted tool change position and a partially retracted position in a clearance relation with the workpiece and for moving said tool carrier from said partially retracted position toward and away from the workpiece through a reciprocal machining stroke, said feed means including a drive transmitting assembly having extensible and contractible means thereon connected to said tool carrier, means mounting said drive assembly on said frame for reciprocal movement substantially in the direction said tool carrier is reciprocally moved, first drive means for moving said drive assembly so as to move said tool carrier through a machining stroke, and second drive means operatively associated with said extensible and contractible means for moving said tool carrier between said fully and partially retracted positions.
In a machining apparatus for machining a workpiece with a work-performing tool wherein said apparatus includes a frame and a tool carrier mounted on said frame for reciprocal movement relative to a workpiece, a drive transmitting assembly connected to said tool carrier for reciprocally moving said tool carrier relative to a workpiece, said drive transmitting assembly being movably mounted on said frame for reciprocal movement substantially in the direction said tool carrier moves to reciprocate said tool carrier, said drive transmitting assembly comprising extensible and contractible means including relatively movable members wherein relative movement of said members in one direction moves said tool carrier toward a workpiece and relative movement of said members in the opposite direction retracts said tool carrier from the workpiece.
In a machining apparatus for machining a workpiece with a work-performing tool wherein said apparatus includes a frame on which said work-performing tool is mounted for movement through a defined path and drive means for moving said work-performing tool through said path, characterized in that said drive means comprises a first and second drive member mounted for rotation about a common axis of rotation, means acting between said second drive member and said work-performing tool to cause said work-performing tool to move through said defined path in response to rotation of said second drive member, interference means acting between said drive members for transmitting the rotation of said first drive member to said second drive member, said interference means including lost motion means enabling relative rotational movement of said drive members through a selected angle of rotation when said first drive member is rotated so that said interference means imparts a hammer action against said second drive member to initiate its rotation.
Dependencies are inferred from the claim text.