| Summary: | 碩士 === 國立成功大學 === 機械工程研究所 === 83 === The purpose of this thesis is to develop a computer aided
contouring testing system which includes the designing and
manufacturing of the hardware and the editing of the software.
Some different points from the previous systems can be listed
as followed : 1.The hardware : (1) LVDTs with large stroke
are employed in this developing system. The types of the LVDTs
are the TESA GT-62 with ±5 mm stroke and novotechnik F220
g with ± 10 mm stroke individually. (2) The link is
composed of 4 shafts. Two of these rods are removable during
the setting. The purpose of this simple arrangement of the
link is to reduce the uncertainty and the cost. (3) The
setting block provides 7 different lengths for absolute various
contouring length. (4) The elements of the hardware mostly are
the standard units. (5) For the different contouring radii,
which can be obtained conveniently, the LVDT can be set
outward or inward in the link to provide different contouring
radii. 2.The software : (1) The determination of the
contouring starting and ending points from all sampling data.
(2) The cost of the manufacturing work is reduced. (3) This
system can provide non-circular contouring path such as an
ellipse. (4) It can be analyzed the sampling data with the
different camping types of the LVDTs. In the thesis, the errors
of CNC machine tools is introduced, the developing system is
compared with the previous systems. Then the hardware and
software of the configure is described. The uncertainty of
the system will be studied and given. Finally, the system
will be employed to verify the performance of the CNC machine
center.
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