Mounting Of Scale - Sony SJ700-015 Handbuch

3-4-1. Mounting of scale

〈1〉 When the mounting surface already meets
parallelism and flatness requirements
When the scale mounting surface is finished and meets the
parallelism and flatness specifications below, just mount
the scale. (For scales of L<1250 mm (49"), use two M4×10
hex socket head cap screws and two plain washers (M); for
scales of L≧1250 mm (49"), use three M4×10 hex socket
head cap screws and three plain washers (M). Tightening
torque: 350 N·cm/35 kgf·cm)
Flatness of A, B surfaces
Parallelism of A, B surfaces to
machine table movement
Provide the range shown in Fig. 3-5 for surface A.
The above tolerances suppose no quick change in the
surfaces and no obstacle in the way between the right and
left mounting surfaces.
10
within 0.15 mm (0.006")
〈2〉 When the scale mounting surface is a casting
surface
Mount the scale using mounting brackets
(1) When the scale mounting surface is a casting
surface and parallelism is not satisfied
Use mounting brackets and adjust so that the
parallelism specified in 〈1〉 may be satisfied.
Mounting brackets are only necessary at the left and
right foot areas of the scale. They do not need to
extend the entire length of the scale. However, if it is
not possible to measure the parallelism of the left and
right feet due to the movable length of the mounted
unit, it will be necessary to make longer mounting
brackets.
Shorter than the machine table stroke
Fig. 3-6 Length of mounting brackets and measurement
of their parallelism
Mounting bracket