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As will be clear from Chap. 2, the leading structural body components are the headstock, tailstock and turret head in the turning centre (TC), and the spindle head and table in the machining centre (MC), when discussing the machining space. More specifically, the function and performance specifications of the machining space can be determined by the (1) spindle nose and tapered hole at the face-end of spindle, (2) barrel and its tapered hole in the tailstock, and also (3) tool seat in the turret head, where the attachment and tool are mounted on through the tapered hole, bay-type flange, tenon-slot joint and so on. In addition, we must understand the (4) allowable maximum cutting torque for the main spindle and table, and if possible, the (5) on-site calculation method of the cutting force.
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It appears that the grinding spindle shown in Fig. 4.2 is old-fashioned; however, the spindle nose is the same as that being in practice. In many respects, this grinding spindle is worth reproducing because of its outstanding main bearing of non-circular type, which is to be in reality by using the elastic deformation of the bearing metal (pad).
In the flange mount tooling system, the two surfaces-in-contact can be realised by using the “Short taper of 20 deg” and “Front face” in the spindle nose like the placement of the four-jaw independent chuck to the main spindle of the engine lathe. This system can guarantee the reproducibility of positioning accuracy better than 3 μm when using ATC.
The wheel flange appears as to be the milling chuck and tool holder in MC and TC, and thus should be discussed in Chap. 5. In consideration of a less umber of families as compared with the jaw chuck, however, we discuss it herein. Of note, we will discuss also the tool holder including the tool bracket and tool block in Sect. 4.3, because of the same reason.
In the conventional structural configuration, the turret head is allocated far from the main spindle, and thus we observe the considerable temperature difference between the turret head and the main spindle. In general, the main spindle is in higher temperature than the turret head, i.e., a pair of hot spindle-to-cold turret head. In the case of the vertical twin allocation, such a temperature difference appears not to be significant.
Zurück zum Zitat Hazem S et al (1986) A new modular tooling system of curvic coupling type. In: Davis BJ (ed) Proceedings of 26th MTDR conference, pp 261–267 Hazem S et al (1986) A new modular tooling system of curvic coupling type. In: Davis BJ (ed) Proceedings of 26th MTDR conference, pp 261–267
Zurück zum Zitat Ito Y (2008) Modular design for machine tools. McGraw-Hill, New York Ito Y (2008) Modular design for machine tools. McGraw-Hill, New York
Zurück zum Zitat Rall K, Findeklee J (1998) Kompensation axialer Spindelverlagerungen beim Hochgeschwindigkeitsfräsen. ZwF 93–11:558–561 Rall K, Findeklee J (1998) Kompensation axialer Spindelverlagerungen beim Hochgeschwindigkeitsfräsen. ZwF 93–11:558–561
Zurück zum Zitat Weck M (1993) Trends of manufacturing technology looking towards the 21st century. Industrial Technical Seminar, Kobe Weck M (1993) Trends of manufacturing technology looking towards the 21st century. Industrial Technical Seminar, Kobe
- Structural Body Components Closely Allocated Around Machining Space—Core for User-oriented Platform System
- Chapter 4
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