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Figure 3 - Construction of the
smooth miller
1 column, 2 feeding table, 3 unloading table, 4 cutter spindle, 5 stop bar, 6 handwheel for adjustment of table
Column
The column carries both, machine tables and the cutter spindle with the bearing housings. The column accomodates the electromotor.
Machine tables
The machine tables are vertically adjustable.
The depth of
cut is set at the feeding table.
The feeding table is set to the flying
circular height of the cutter.
Stop bar
The stop bar is horizontally and angularly adjustable. It serves for guidance when milling narrow faces.
Cutter spindle
In the cutter spindle the cutters are mounted. Their number of revolutions is between 4,000 and 6,000 revolutions per minute. The drive is done by the electromotor with the help of a belt drive.
Mode of operation of the smooth miller
The cutter spindle is set turning by the electromotor. It planes and finishes the material to be worked by chip removal.
Safety devices
The part of the cutter spindle which is not necessary for milling is covered by a stationary safety device.
The moveable left part of the safety device releases the necessary working width of the cutter spindle.
Smooth millers may cause heavy accidents. Therefore, pay special attention to the following:
- do not switch on the machine without safety devices
- do not operate the machine without instruction
- make use of the feeding device when machining short workpieces (see Figure 5)
- pay attention to the order on the working place.
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