Page 182 - Modular design for machine tools

142 Modular Design Guide and Machine Tools Description

In short, the concept and layout design can be performed by even imma-
ture designers using the functional description, data file to convert the
machining method symbol to FGF, and logic operation, although the dimen-
sional specifications cannot be given. In this context, it is worth consider-
ing the research of Saljé and Redeker [8], which can deal with the
generation of a group of the machine tools available for the manufactur-
ing system design. Figure 4-10 reproduces a design flow of a manufacturing
system, and as can be seen, Saljé and Redeker proposed a forerunning idea
similar to that of Saito and Ito [7]. In addition, the above-mentioned idea
is very convenient for people in the sales department, because they can dis-
play the image of the machine promptly in front of the client.
Importantly, as a result of information exchange through private letters
together with leapfroglike competition to research work conducted by
Ito and Saito, Redeker developed a computer- aided methodology of
structural configuration in the concept design stage [9]. In the developed
methodology, the following design specifications can be considered.
1. Shapes, dimensions, and tolerances of both the blank and the finished
part
2. Shapes and dimensions of the tool
3. Clamping methods and concerns
4. Form-generating movement of the machine

Work description Analyses of machining Choice of desirable
to be machined sequences possible order of guideway

Choice of desirable Allocation analyses of
Disintegration of work machining sequence guideway to floor
into machining entities
Determination of work Choice of desirable
Analyses of machining holding methods allocation of guideway
methods for entities necessary
possible
Analyses of form-generat- Analyses of structural
Choice of desirable ing movements possible body configurations
machining method as per holding method
for entity
Choice of desirable
Choice of desirable structural configuration
movement
Combination of
machining methods Order of guideways to
possible movements Concept generation of
machine tools
Analyses of order
Choice of desirable
machining methods combinations in Concept generation of
for work guideways possible manufacturing systems
Figure 4-10 Concept design processes for manufacturing systems.