Flexible Manufacturing system(FMS)

Advanced Communications
• • • • Electronic data interchange (EDI) Internet Wireless communications Teleconferencing & telecommuting • Virtual reality
Manufacturing Technology
–recommend decision based on expert knowledge
Decision Support System
Decision Support System
Management
Personnel
Management Information System Information: reports model results what if? analysis Accounting
AGV 2 Raw material storage (roller conveyor) L/U L/U
Temporary storage areas (33 pallet spaces)
Load/unload stations
Automated guided vehicle
4.The Important Technology of Flexible Manufacturing
Tools
Machine 1
Tools
X
X
Machine 2 Computer
Tools
Pallet with Work piece X attached
Machine 3
Load Parts
History of FMS
• FMS first proposed in England in 1960‟s, it been termed “System 24”. Because it could operates 24 hours a day. • In 1967 the United States, White Parsons Portland Company built flexible automatic line . • 1976, Japan FANUCS display FMC. • In 1982, Japan FANUCS built automation motor company for processing workshop.
Comparison of Organizational Characteristics Associated with Mass Production and Flexible Manufacturing Systems
Characteristic
Interactions
Training Expertise Tasks Customer Demand Suppliers
Span of Control Hierarchical levels Tasks Specialization Decision making Overall Wide Many Routine, repetitive High Centralized Bureaucratic, mechanistic Narrow Few Adaptive, Low Decentralized Self-regulating, organic craft-like
Data
Computer system: data processing
Production
Decisions Marketing Distribution Other areas
Quantitative techniques
What -if? analysis
Artificial Intelligence
Flexible Manufacturing
1. Flexible Manufacturing Defined 2.The Function of FMS 3.FMS Components 4. The Important Technology of Flexible Manufacturing
1. Flexible Manufacturing Defined
3.FMS Components
FMS Components
• Numerical Control (NC) machine tools • Automated material handling system (AMHS) – Automated guided vehicles (AGV) – Conveyors – Automated storage and retrieval systems (AS/RS) • Industrial Robots • Control Software • Automated Inspection
Information Technology
• Management information system (MIS)
–move large amounts of data
• Decision support system (DSS)
–add decision making support
• Expert system
Flexible Manufacturing Systems (FMS)
• Programmable machine tools • Controlled by common computer network • Combines flexibility with efficiency
FMS
Pallet Transfer System X Work piece in queue X X X X X X Worker Unload X X X
2.The Function of FMS
How You Can Use FMS
• • • • • • • • To reduce set up and queue times（准备等待） Improve efficiency Reduce time for product completion Utilize human workers better Improve product routing Improve product quality Serve a variety of vendors simultaneously Produce more product more quickly
Comparison of Organizational Characteristics Associated with Mass Production and Flexible Manufacturing Systems
Characteristic Mass Production FMS
Structure:
Flexible Manufacturing Systems
Tool changer Indexing tables
Tool changer
Tool changer
AS/RS Computer control CNC 3
Out In
AGV 1Βιβλιοθήκη CNC 1Out In
CNC 2
Out In
Raw material storage (floor space)
Mass Production
Standalone
Narrow, one time Manual, technical Routine, repetitive Stable Many, arm‟s length
FMS
Teamwork
Broad, frequent Cognitive, social Solve problems Adaptive, Changing Few, close relations craft-like
• „Neural networks(神经网络)
–emulate interconnections in brain
• Genetic „algorithms(基因算法)
–based on adaptive capabilities in nature
• Fuzzy logic
–simulate human ability to deal with ambi‟guity(歧义)
Flexible Automation
• The so-called "soft", mainly in: • ① production equipment, parts, components, products can be processed according to the needs of transformation; • ② volume of processed products can be quickly adjusted as needed; • ③ performance parameters of the processed products can be quickly change and promptly put into production; • ④ can be applied quickly and effectively integrate new technologies; • ⑤ users, trading partners and suppliers to changes in demand and can respond quickly to special requests. The use of flexible manufacturing technology companies, usually to meet the ever-changing varieties and small batch production needs, the rapid expansion of wartime production capacity, and product quality and cheap.