Cutting anvil and method
AssigneeThe Boeing Company
InventorRichard B. Evans
Life of this patent
Estimating the term…
Abstract
A cutting system includes a cutting assembly and an anvil. The cutting assembly includes an ultrasonic cutting tool having a stylus with a tip and an actuator to move the tip along a path. The path is oriented in a transverse manner relative to movement of a backed ply material. The anvil includes a rigid base for securing the anvil to the cutting assembly and a surface coinciding with the path. The system is configured to drive the tip into the surface and draw the tip along the path to generate a groove disposed upon the surface. The groove being in cooperative alignment with the tip.
Claims19
A system comprising:
- a backed ply material comprising at least one ply and a backed ply, wherein the backed ply is relatively more flexible than the at least one ply;
- a cutting assembly comprising an ultrasonic cutting tool including a stylus having an edge with a tip, the stylus being rotatable between a first orientation and a second orientation, and an actuator to move the stylus along a path, the path being oriented in a transverse manner relative to movement of the backed ply material;
- and
- an anvil comprising a rigid base securing the anvil to the cutting assembly, and a deformable insert secured to the base along the path, the insert having groove formed into a surface of the insert along the path, and wherein the groove has a cross-sectional shape corresponding to a cross-sectional shape of the edge, and wherein the groove is in cooperative alignment with the tip;
- wherein the cutting assembly is configured:
- while the stylus is in the first orientation, to drive the tip into the surface of the insert and scrape the edge along the path to generate the groove in the surface;
- and
- while the stylus is in the second orientation, to cut the at least one ply without cutting the backed ply by deflecting the backed ply into a gap maintained between the tip and the groove.
A ply cutting system comprising:
- a backed ply material comprising at least one ply and a backed ply, wherein the backed ply is relatively more flexible than the at least one ply;
- a cutting assembly comprising an ultrasonic cutting tool including a stylus having an edge with a tip, the stylus being rotatable between a first orientation and a second orientation, and an actuator to move the stylus along a path, the path being oriented in a transverse manner relative to movement of the backed ply material;
- and
- an anvil blank secured to the cutting assembly;
- wherein the ply cutting system is configured to generate a groove in a surface of the anvil blank coinciding with the path prior to ply cutting operations by driving the tip into the anvil blank to a predetermined depth while the stylus is in the first orientation, and scraping the edge across the anvil blank along the path, wherein the groove has a cross-section shape corresponding to a cross-sectional shape of the edge;
- and
- to cut the at least one ply without cutting the backed ply by deflecting the backed ply into a gap maintained between the tip and the groove while the stylus is in the second orientation.
Dependencies are inferred from the claim text.