Page 145 - Modular design for machine tools
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Engineering Guides and Future Perspectives of Modular  Design    105

               TABLE 2-4 Classification of Machining Complexes between 1995 and  2000
                                                     Products on market &
                 Work branch  Tool branch
                                                         remarks
                                            Type MT-250S of Mori Seiki (8-axis controlled type):
                                           Tool spindle with curvic coupling for fixing turning tool,
                           Rotary tool spindle
                                          roller linear guide of German-make, 7.5 kW built-in-motor
                              head with
                                        (8000 rpm.) and maximum allowable diameter of work 570 mm
                             swiveling type
                                          Type Integrex 100 II of Yamazaki Mazak:Main motor 7.5 kW
                                           (6000 rpm.), tool spindle motor 5.5 kW (10,000 rpm.)
                Opposite-located  Upwards: Tool   in max., and minimum swiveling angle 0.001 deg.
                 twin-spindle  spindle head of
                (second spindle:   swiveling type   Type TM25YS of Ikegai (8-axis controlled type):  Swing
                traveling type)  Underneath: Turret   over bed 660 mm, primary spindle with 10 in chuck (438 N-m
                               head      in max. allowable torque), secondary spindle with 8 in chuck
                                         (105 N-m in max. allowable torque), tool spindle (45 N-m in
                             Twin-turret of   max. allowable torque) and bore diameter of inner ring of main
                           opposite-located type       bearing 120 mm
                             (Upwards and
                             underneath)     Type B56 of Biglia: Turret head allows to attach
                                                        milling cutter
                                             Type NST-40M of Shin Nippon Koki: 520 mm in
                 Single spindle
                              Twin-turret    max. allowable diameter of work, and turret allows
                 with tailstock
                                                     to attach milling cutter
                           Single turret column
                 Single spindle  (with octagonal turret   Type MT-25A/500 of Mori Seiki
                          head and milling head)
                  Twin-head
                                              Type PPC of Pittler: To minimize idle time,
                (each head has   Four-turret head
                 twin-spindle)                 simultaneous machining for the same work


               basic necessity is to intermediate between the preferable role of human
               beings with multiple nationalities and the fully automatized production
               facilities. In short, the machining complex can, at present, be defined
               as the system machine of multifarious machining  function-integrated
               type having the configuration of combining the TC and MC with  twin-
               spindle allocated oppositely.
                 In due course, the processing complex can be regarded as an advanced
               variant of the machining complex, because it has more processing
               functions than machining. In the mid-1980s, the Oerlikon tried to pro-
               duce a portal machine of  multiple-processing-integrated type called
               Multitechnologie-Zentrum (spindle tapered hole: ISO 50), which can deal
               with drilling, milling, jig boring, jig grinding, and coordinate measurement,
               although the machine was designed not using the modular principle. In
               addition, the TC of trommel type was on the market, where the trommel
               with twin-spindle has a function of work holding and transportation.
                 Another example is, as shown in Fig. 2-28, a CNC vertical turning
               machine with  twin-spindle of Hüller Hille make (type DVT) in 2002,
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