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close this bookOperations on Smooth Miller and Thicknessing Miller - Course: Mechanical woodworking techniques. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 10 p.)
View the document(introduction...)
View the document1. Purpose of Milling at the Smooth Miller
View the document2. Construction of the Smooth Miller
View the document3. Setting of the Smooth Miller
View the document4. Milling of the Workpieces
View the document5. Purpose of Milling on the Thicknessing Miller
View the document6. Construction of the Thicknessing Miller
View the document7. Setting of the Thicknessing Miller
View the document8. Milling of the Workpieces
View the document9. Tasks

2. Construction of the Smooth Miller


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.