Setting-up of milling machines means the preparation of the
milling machines for milling. The selection of the clamping
tools for the cutters, of the clamping tools for the
workpieces and setting of the cutting values, speed rate,
feed rate and depth of cut, are necessary prior to milling.
Proper setting-up and operation of the milling machine are
prerequisites for carrying out the milling operation
successfully. Errors, such as the selection of an
unfavourable way of clamping or sequence of the individual
steps, will result in defects in quality of the workpieces
machines. The amount of work will be considerably increased.
Setting-up and operation of horizontal or vertical milling
machines involves the following steps:
- Planning the work cycle.
- Making available the cutting tools, measuring and
testing tools as well as clamping tools.
- Checking the cutting tools, measuring and testing
tools and clamping tools for serviceability.
- Checking the milling machine for proper working
order:
- existence and state of controls (switches,
push-buttons, crank handles),
- oil level (bubble glasses and sight glasses) as well
as identified lubrication points,
- existence of safety facilities on the milling machine
(covers, hoods, cutter guards).
- Making available sufficient and adequate coolant.
- Checking for existence and serviceability of end
stops on the milling table, knee and saddle. Any defects
found with the milling machine are to be reported
immediately to the serviceman in charge to arrange for
immediate repair. If any additional or special
attachments are to be used, such as vertical milling
heads, universal milling heads, slotting attachments or
power driven rotary indexing tables, they are also to be
checked for serviceability and safety in operation prior
to putting them into operation.
Defective additional attachments are to be replaced. The
defective attachment is to be reported for repair.
- The cutting values (cutter speed and feed rates,
number of cuts and the relevant depth of cut) are either
to be read from the attached documents or to be
calculated. They can also be read from the nomogram of
the milling machine.
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