Search Results

Technical Paper

CNC Fastening of Large Aircraft Structures

1993-11-01

931772

The use of CNC automatic fastening on large aircraft structures requires a process-oriented approach. Included in that process are factors related to the parts and assemblies, tooling, machine control data, as well as the automated fastening machine itself. ...This paper summarizes some challenges and solutions that occurred during the production implementation of such a CNC assembly process for very large aircraft structures.

Journal Article

High Accuracy Articulated Robots with CNC Control Systems

2013-09-17

2013-01-2292

Previous work has greatly reduced this error through the use of secondary scales and a mathematical model of the robot deflection running on a CNC controller. Further research improved upon this model by accounting for linear deformation of each robot link regardless of position.

Technical Paper

Rivet Gripper and Offset Collar Gripper for Wing Panel Riveting

1999-10-06

1999-01-3430

Robotic gripper technology has been integrated into CNC riveting machines. Handling fasteners efficiently is critical in automated wing panel riveting.

Technical Paper

High Path Accuracy, High Process Force Articulated Robot

2013-09-17

2013-01-2291

Each of the 7 axes is enhanced with secondary position encoders and the entire system is controlled by a Siemens 840Dsl CNC. The CNC handles all process functions, robot motion, and executes software technologies developed for superior dynamic positional accuracy, including enhanced kinematics.

Technical Paper

Automated Wing Panel Assembly for the A340-600

2000-09-19

2000-01-3015

Each line consists of three fully automated CNC controlled flexible fixtures placed end to end serviced by two E4100 CNC assemble machines.

Technical Paper

A Complete Approach to Automated Assembly

1993-09-01

931768

Improvements in CNC controlled machines, called Positioners, and tooling, called End Effectors, have enabled the assembly process to pass from, two people, to robots working on opposite sides of a panel. ...Working in a cell where a Cell Controller interfaces with the Positioner’s CNC and the Rivet Feed System’s PLC, and a Host computer interfaces with design computers containing CADICAM data, the APAC System, Automated Panel Assembly Cell, becomes a flexible, low cost solution for the assembly of virtually all components for assembly.

Magazine

Aerospace Engineering & Manufacturing 2008-03-01

2008-03-01

Machining and turning centers take center stage Makers of CNC machining equipment are incorporating more and better functionality into their products so users cope better with processing challenges such as those posed by tough new grades of aerospace materials.

Technical Paper

A Flexible Lateral Seam Riveting System for Circular Aircraft Structures

1990-10-01

902040

The Flexible Lateral Seam Riveting system (FLSR) proposed by Gemcor will be able to automatically, under CNC and tracer control, rivet both lateral and radial joints without the use of dedicated and fixed machine track systems.

Technical Paper

Specification and Implementation of an Automated Rivet/Domenut Installation System

1990-10-01

902037

This equipment is considered new technology for it's combination of features which include: CNC positioning, sealant installation, drilling of multiple hole diameters in a single cycle, domenut installation, as well as the capability of varying hole spacing for alternate domenut needs.

Technical Paper

Retrofitting to Achieve Automated Assembly and Burr-Less Drilling

1998-09-15

982155

There have been attempts to automatically move the panels, skins and bulkheads using CNC equipment. There have been other attempts to move the riveting head itself; however the basic premise has been a two sided fastener.

Technical Paper

Statistical Process Control: Real-Time Data Acquisition and Response

1994-10-01

941840

The system has been installed on four production CNC riveters and provides enhanced, in-process control of automated fastening machine performance.

Technical Paper

High Accuracy Assembly of Large Aircraft Components Using Coordinated Arm Robots

2016-09-27

2016-01-2133

The predominantly auto-generated programs are executed on a single Siemens CNC that controls two Electroimpact-enhanced Kuka 6 axis robots. This paper documents the system design including the specification, applicable technologies, descriptions of system components, and the comprehensive system integration.

Journal Article

Expanding the Use of Robotics in Airframe Assembly Via Accurate Robot Technology

2010-09-28

2010-01-1846

With the addition of secondary feedback, high-order kinematic model, and a fully integrated conventional CNC control, robotic technology can now compete on a performance level with customized high precision motion platforms.

Technical Paper

Magnetic Safety Base for Automated Riveting and Bolting

2016-09-27

2016-01-2087

To accomplish this a CNC controlled electromagnetic interface was developed, capable of pulling with 0-3400 pounds. This electromagnetic safety base releases when impact occurs from the sides or during downward motion (5 sided crash protection), and it retains all riveting and bolting functionality.

Technical Paper

Flexible All Electric Riveter

2019-03-19

2019-01-1333

In larger machines larger robots or CNC positioners can be used to scale up the use of the machine.

Journal Article

High-Accuracy Robotic Drilling/Milling of 737 Inboard Flaps

2011-10-18

2011-01-2733

The system is controlled by a Siemens 840Dsl CNC which handles all process functions, robot motion, and executes software technologies developed for superior positional accuracy including enhanced kinematics, automated normality correction, and anti-skid correction.

Technical Paper

Robotic Normalizing Force Feedback

2005-10-03

2005-01-3291

Industrial robots are not as stiff and rigid as conventional CNC machinery, but are far more operationally flexible and cost effective. Drilling with an industrial robot, as one component for the strive towards light-weight automation, has not yet been fully utilized in aerospace manufacturing.

Technical Paper

Robotic Drilling: A Review of Present Challenges

2024-03-05

2024-01-1921

Traditionally, this required the use of Computerised Numerical Control (CNC) systems to achieve such tight tolerances. However, with the increasing popularity of robotic arms in machining applications, as well as their relatively lower cost compared to CNC systems, it becomes necessary to assess the ability of robotic arms to achieve such tolerances. ...However, with the increasing popularity of robotic arms in machining applications, as well as their relatively lower cost compared to CNC systems, it becomes necessary to assess the ability of robotic arms to achieve such tolerances.

Journal Article

Enhanced Robotic Automated Fiber Placement with Accurate Robot Technology and Modular Fiber Placement Head

2013-09-17

2013-01-2290

The system is controlled by a Siemens 840Dsl CNC which handles all process functions, robot motion, and executes software technologies developed by Electroimpact for superior positional accuracy including enhanced kinematics utilizing a high-order kinematic model.

Journal Article

Real Time Pose Control of an Industrial Robotic System for Machining of Large Scale Components in Aerospace Industry Using Laser Tracker System

2017-09-19

2017-01-2165

The implementation of an additional controller in the manufacturers CNC allows the correction of the programmed trajectory so that the machining path will match its specifications.