COMPRO: Compensation for stochastic deviations in process monitoring for flexible production systems

• Research unit: EU RFP
• Project number: 96.0326

Key words (English)

Sensors; electronics; microelectronics; information processing; information systems; flexible manufacturing systems(FMS); process control; machine tools; numerical control (NC); spindle integrated force sensor

Alternative project number (English)

EU project number: BRPR-CT96-0327

Research programs (English)

EU-programme: 4. Frame Research Programme - 2.1 Industrial and materials technologies

Short description (English)

See abstract

Partners and International Organizations (English)

Robert Bosch GmbH (D), ideko (E), UCD (IRL), Comau (I), Scania (S), Hüller Hille (D)

Abstract (English)

The aim of this project is to develop a multifunctional monitoring system for reliable process monitoring during machining with rotary tools in single spindle flexible production units. The system will be easily used and applied to the machine tool with low cost and effort. In comparison with conventional systems on the market at present, this system will include the following innovative features:

· improved reliability due to detection of and compensation for stochastic variations in production.

· significantiy less cost and effort in installation, commissioning and use, due to self adjustment of the system through signal monitoring.
· considerably reduced learning and optimisation of the monitoring parameters by the operator.
· extension of capabilities with regard to machine diagnosis and process optimisation.
The main benefits for the user are:
· reduction of production costs by guaranteeing stable, robust production processes.
· effective safeguarding of product quality.
· tighter process control
· improved environmental and worker safety
This project targets the improvement of reliability and quality control in the component supply
industry and so will contribute towards the objectives of the Targeted Research Action task forces
for:
New generation aircraft
Car of tomorrow
Trains and railway systems of the future
Maritime systems of the future
The system developed will also contribute towards realising competitive products for the
European materials (e.g. metalworking) industry.
Work on the project is divided into three phases:
· elaboration and detailed specification of the basic principles for describing the process(system state on the basis of sensor signals, analysis and description of stochastic influencing variables.
· development and optimisation of the system prototype, including capacity for integration into a CNC control system.
· trials in production and cost benefit analysis.

References in databases (English)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 96.0326