Page 132 - Modular design for machine tools

92 Modular Design Guide and Machine Tools Description

Importantly, the system function-integrated machine was contrived
with the prevailing trend of using the modular design of the production
system. In fact, the FMC was, in general, to play the role of the module
within both the FTL and FMS, provided that the FMC was of compact
type and modified to the machinelike configuration.
Nowadays, the system machine can be classified into (1) the advanced
system machine, (2) the machining complex (machining function-
integrated type for conventional use), and (3) the processing complex.
Table 2-3 displays the system machine sublimated to that for practical
use between the 1980s and 1990s. The machining complex can be char-
acterized by its greater flexibility, or rather agility, which is achieved in
reality by combining the turning function and the milling function, so as
to endow the machine with time- and space-dependent flexibility. As a
result, there is no need to use modular design in the case of the system
machine, even when the machining requirements are very versatile and
ramified. As will be clear from the above, there is a two-pronged design
concept for the system machine and its successor, depending upon whether
the modular design principle is employed or not. Intuitively, the present
modular design becomes very complicated with the advent of the system
machine and machining complex, simultaneously approaching a new

TABLE 2-3 Representative System Machines in Late 1980s and 1990s
Manufacturers Kinds/Types Functionalities Remarks

System function- Spindle speed: 30–
Bernhard
integrated 12,000 rpm.
Steinel
(type: EFZ 200) Main motor: 20 kW
MC of head changing type
Kearney & For FTL to machine
(type: Fleximatic CNC
Trecker Marwin service parts of motor car
Multi-headchanger)
Cylindrical grinding, non- Main spindle speed:
Kopp Kurvenbearbeitungs- circular grinding, surface 5000 rpm in maximum
Werkzeug- zentrum grinding, 5-axis machining & Main motor: 11 kW
maschinen (type: FSK25G) high-speed machining Displayed at EMO Show '97

Nippon Multiple-purpose MC Synergy of MC and NC User-oriented modular
Kokan (type: MMC-30) turning machine design
NC planetary grinding
Contour milling & Drilling, countersinking,
SIG Swiss grinding machine unit attachment facilitating
Industrial reaming, threading & direct mount to milling
(type: CF) grinding
spindle
Oppositely allocated
Yamazaki TC of twin-headstock type Combination of turning twin-headstock
Mazak (type: Multiplex) & milling Twin-turret of drum type