SAC T120, Инструкция по эксплуатации и обслуживанию

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T120C
46
4.8.1 Guide machining with cutting through all the piece length
Such a machining is made using a straight guide in most of the cases; the pieces have
a rectangular section through all their length.
The pieces can be guided by the angle formed by table and guide. The vertical and
horizontal pressing devices are arranged for forming a tunnel through which the piece
can be guided; follow the indications of § 4.7.2 and of § 4.7.3.
The next piece can be used for pushing the previous piece, and at the end the last piece
will be machined using a pusher (Fig. 23) passing under the side pressing device.
For machining thin panels the pressing device apex can be used, but its thickness must
be suitable.
Special slides must be used according to the piece dimensions.
If possible, use a dummy guide to close the clearance between the two guides, as
shown in Fig. 21.
Before starting the spindle select the correct speed for using the tool as indicated in
§ 4.6.6.
4.8.2 Interrupted machining
The machining is interrupted when:
a) the cutter penetrates in one side instead of starting from one end, and/or
b) the cutter stops the machining before the piece end.
It is absolutely necessary to use a template together with a protecting device shielding
the cutter as much as possible, and some retainers must be used at the ends.
The template must allow the piece to be quickly and accurately positioned, and to be
strongly held in position (examples in Fig. 32).
4.9 SHAFT MACHINING PROCEDURES
4.9.1 Milling with the curved guide
The sequence of the steps to be made refers to the number sequence inside the follow-
ing figures.