Apparatus for actuating tooling
AssigneeGeneral Electro Mechanical Corporation
InventorsTHOMAS H. SPELLER JR., BERNHARD KITTELBERGER, ROBERT J. KELLNER, MARK J. ANDREWS, BRADLEY M. ROBERTS
Life of this patent
Estimating the term…
Abstract
Riveting apparatus wherein a planetary roller screw delivers the high forces required for actuating the fastener upset tooling. In order that precise control of the entire upset operation me by obtained, a servo-controlled electric motor operates the actuator. In order that different machining operations may be performed on a workpiece without having to provide an actuator for each tool, the tools are engaged in turn by the actuator for performing riveting and other machining in succession.
Claims30
Riveting apparatus comprising tooling means for upsetting fasteners, a shaft, a nut, means for converting rotary motion of one of said shaft and said nut to linear movement of the other of said shaft and said nut for actuating said tooling means for upsetting fasteners, said converting means comprising a plurality of rollers assembled between said shaft and said nut in a planetary arrangement around said shaft, and motor means for rotating said one of said shaft and said nut.
Riveting apparatus comprising tooling means for upsetting fasteners, a shaft, a nut, means for converting rotary motion of one of said shaft and said nut to linear movement of the other of said shaft and said nut for actuating said tooling means for upsetting fasteners, and servo-controlled electric motor means for effecting rotary motion of said one of said shaft and said nut.
Machining apparatus comprising at least two tools, a shaft, a nut, means for converting rotary motion of one of said shaft and said nut to linear movement of the other of said shaft and said nut for actuating said tools, a motor means for effecting rotary movement of said one of said shaft and said nut, and means for engaging said tools by said other of said shaft and said nut in turn for performing machining by said tools in succession.
A method of riveting comprising inserting a fastener in position for riveting, positioning tooling for upsetting the fastener, providing a planetary arrangement of rollers around a shaft and engaged between a nut and the shaft for converting rotary motion of one of the nut and shaft to linear motion of the other of the nut and shaft, rotating said one of the nut and shaft to thereby effect linear movement of the other of said nut and shaft to thereby actuate said tooling to upset the fastener.
A method of riveting comprising inserting a fastener in position for riveting, positioning tooling for upsetting the fastener, coupling an electric motor to one of a nut and a shaft for rotating thereof, converting the rotation of said one of the nut and the shaft to linear motion of the other of the nut and the shaft to thereby actuate the tooling for upsetting the fastener, and servo-controlling the motor.
A method of machining comprising providing at least two tools, rotating one of a nut and shaft, aligning the tools in succession with the other of the nut and the shaft, converting the rotational movement of said one of the nut and shaft to linear movement of the other of the nut and shaft to actuate the aligned tool for performing machining.
Dependencies are inferred from the claim text.