1. Planning in production systems
Slovak University of Technology
Faculty of Material Science and Technology in Trnava
Planning in production systems

2. Development of automation engineering manufacture
conventional machines
conventional machines - NC machines - CNC a DNC control - flexible production systems PPS - CIM computer integrated manufacturing
CNC (Computer Numerical Control)
control system of production device, which is connected direct to the local control microcomputer, where is the own program saved
DNC (Distributed Numerical Control)
is characteristic by flexible distributed control of several production machines from one center.

3. Figure 1: Development of production systems
Device production
Mechanization
Computer control
Data
networks
Computer integration
Program
control
Term
1950
1970
1960
1980
1990
Figure 1: Development of production systems

4. Main components of production system – subsystems
technological – geometric and physical – chemical attributes change of the component
transportation and handling – set of transportation and handling tools to material, semi finished products and components movement between single workplaces of production process
store system – input, interoperated and output stores
check - input, interoperated and output control
control and information – set of control and informational tools

5. Figure 2: Components of the production system
Technological subsystem
Transportation
and handling subsystem
Store subsystem
Control subsystem
Managing and information subsystem
Figure 2: Components of the production system

6. Flexible Manufacturing Systems
has open character, manufacturing orders can be awarded continuously during planning period
mutually interchangeable workplaces
manufacturing orders can be splitted up into parallel workplaces
during planning period occur to failures
possible alternative technical procedure
minimally manual strikes
minimal time to conversion

7. Main parts of the PVS processing NC a CNC
devices to interoperating transport and manipulation
devices to operating transport – purpose devices, manipulators, industrial robots
components and tools carriers – Setting and positioning problem is solved, establishment and fixing components

8. PVS tasks - provide especially
production
control
harmonization main and helping activities
control manufacturing quality
monitoring a scan
transport and storing - resolution store spoil, transport roads
PVS disadvantages
high capital costs
complex control system
risk haywire of individual devices and thereby too entire system

9. Elastic production system (PVS)
mono or various technological devices with system to ensure his functions in mechanical regime
automated production system, wherein oneself change production schedule solve by changing dating base
is possible to divide him into following parties:
elastic production complex
elastic Computer Integrated Manufacturing
automated cartage - store system

10. PVS by organizational structure
elastic production cell
plicate from technological machinery with code control with resources of the automation technological process, which works autonomous
elastic automated line
includes several production cells arrange in order of sequence technological operations and controlled by one direction system
elastic automated working
to product certain assortment parts
elastic automated plant

11. Production planning in PVS
working-out monthly operational plan products for PVS
designation basic terms and advances for preparation production, safety and preparation of material, tools, documentation, subdelivery and co-operation
operational plan
his part -> orientation terms commencement and ending production
at his base and real state in PVS oneself work out short-time operational plan

12. short-time operational plan
designates commencement and ending production individual productional batches
establishes priority of individual operations
worked out weekly on fortnightly period