초록 ▼

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 may be obtained, a servo-controlled electric motor operates the actuator. In order that different machining oper

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 may be 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.

대표청구항 ▼

1. Apparatus for actuating tooling comprising at least two tools, said apparatus comprising 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 mov

1. Apparatus for actuating tooling comprising at least two tools, said apparatus comprising 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 enabling operations to be performed by said tools in succession.