Reverse Engineering of Z-Axis Slideways of CNC Lathe Machine Okuma-Howa ACT 3
The z-axis of lathe machine is the direction of carriage’s motion along the bed on lathe which is parallel to the spindle axis and the positive direction is away from the headstock. The ideal movement of components on z-axis only gives one degree of freedom. Thus, there is no deviation either in...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/43726 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The z-axis of lathe machine is the direction of carriage’s motion along the bed on
lathe which is parallel to the spindle axis and the positive direction is away from the
headstock. The ideal movement of components on z-axis only gives one degree of freedom.
Thus, there is no deviation either in position, linear, or angular orientation in straight motion
of z-axis. Geometric characteristics are specification that should be maintained in order to
get accurate z-axis lathe direction movement.
Stackup tolerance method is used to determine the best of variation of geometric
tolerance. Therefore, performance requirement of lathe can be achieved. Based on ISO
13041-1:2004, there are two requirements for carriage movement in z-axis direction. These
are parallelism between movement in z-axis direction toward the spindle rotation axis and
angular deviation of the z-axis movement. Each of these requirements has tolerance limit
value that should be achieved.
In this research, the stackup tolerance analysis model used is worst-case model. The
result of stackup tolerance calculation are optimized to get the best tolerance variation. The
optimized tolerances are applied to technical drawings. This model can be used as a reference
in designing CNC lathes made in Indonsesia.
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