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Router contours aerospace parts.

Router contours aerospace parts

An advanced system for light routing/milling of very large aerospace parts combines a gantry approach with an articulated robot machining head. It offers the ability to attack large, complex parts without expensive fixturing, and it eliminates the need for a variety of expensive custom machine tools. It is used to contour bonded-metal parts, and nonmetallic wing panels and jet-engine struts.

Developed by CIMCORP Precision Systems Inc, St Paul, MN, and called XR 225, the five-axis gantry robot router covers a standard work envelope of 33 ft x 16 ft x 6 ft, and reaches speeds of 400 ipm. A special wrist uses a compact zero-backlash machine-tool construction to hold head sweep and tram run-out to less than 0.001" at the tool point.

The system probes the part for location and performs a six-degree-of-freedom transformation on the part program, aligning it to the actual part orientation. Then, the CNC machining program takes over and executes all machining operations. Spindle-motor choices range to 20 hp and 75,000 rpm.

End-effector options include automatic cutter/bit replacement, drilling, waterjet cutting, and QC inspection probing. Robot dynamics, part probing, and end-effector changing are done automatically. This means that multiple processing of a workpiece can be accomplished in a single setup. Whenever operator intervention is required, such as when a tool called for in the program is not available, an alarm is triggered to notify personnel.
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Copyright 1991 Gale, Cengage Learning. All rights reserved.

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Title Annotation:Technology Update
Publication:Tooling & Production
Article Type:Product Announcement
Date:Nov 1, 1991
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