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DIFFERENCE BETWEENCONVENTIONAL & CNC MACHINE
Spindlehead
Main
motor
Saddle
Hand- wheels
Controlshaft
Feedshaft
Leadscrew
HeadstockGearing
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DIFFERENCE BETWEENCONVENTIONAL & CNC
MACHINEAngular position
transducerSingle Axis
Drive X
Single Axis
Drive Z
Main Drive
Resolver Z Axis
Measuring system
Resolver X AxisMeasuring system
Spherical thread
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JENIS-JENIS CONTROLLER.
1. FANUC.
2. OKUMA.
3. MITSUBISHI.
4. SIMEN.
5. HASS.
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PRODUCT MAKE FROM CNC
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AUTOMOTIVE INDUSTRY
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PART-PART OF MACHINE.
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VARIOUS TYPES OF TURNING
TOOLS
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TYPICAL TURNING TOOL.
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TURNING CENTER CUTTER.
Types of cutters used on CNC turning centers:-
1. Carbides (and other hard materials) insert turning
and boring tools2. Ceramics
3. High Speed Steel (HSS) drills and taps
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STANDARD INSERT SHAPE. V used for profiling, weakest
insert, 2 edges per side. D somewhat stronger, used for
profiling when the angle allowsit, 2 edges per side.
T commonly used for turningbecause it has 3 edges per side.
C popular insert because thesame holder can be used forturning
and facing. 2 edges perside.
W newest shape. Can turn andface like the C, but 3 edges per
side. S Very strong, but mostly usedfor chamfering because it
wontcut a square shoulder. 4 edgesper side.
R strongest insert but leastcommonly used.
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CHUCK The unit to set/dismount a
workpiece is called the chuck,and in general, the chuck
withthree soft jaws is used. Thejaws work together with thechuck
unit and can beautomatically opened/closedby the foot switch.
Chuck jaw foot switch
This switch is to open andclose the jaws of the
chuckhydraulically.
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TAILSTOCK
This is the table to hold the workpiece with longprojection with
the tailstock spindle at its center.The tailstock spindle is
hydraulically driven and is
moved front and rear by the foot switch
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BED & TOOL SLIDE/TURRET
the tableis to supportthe spindle head,carriage, and tool
slide.
the tool slideis to which
tools are set Fig. shows the drum
type tool slide. Twelvetools can be set to thistool slide, and
any tool
can be indexed by thetool slide indexingmechanism.
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ON/OFF SWITCH Power source ON/OFF
switch This pushbutton
switch is to put on andoff the power sourcefor the lathe and
NCunit.
CRT control panel This control panelconsists of the CRTdisplay,
functionselection keys,numeric value keys,
etc. and is used toperform control suchas the selection
offunctions of the NCunit andregistration/edition ofprograms.
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CRT CONTROL PANEL & MACHINE
CONTROL PANEL CRT controlpanel consists ofthe CRT display,
function
selection keys, numeric valuekeys, etc. and is used toperform
control such as theselection of functions of theNC unit and
registration/edition ofprograms.Machine control panel This
control panel consists of
various function selectionswitches of machineoperations, the
manual dials,
etc. and is used to selectmachine functions inprogrammed
operation andto perform manualoperation.
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HYDRAULIC POWER UNIT
This unit is a hydraulic power source for indexingtools in the
tool slide, opening/closing the chuckautomatically, moving the
tailstock spindle, etc.
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COOLANT.
Penentuan penggunaan coolant:-
1. Kelajuan mesin.
2. Jenis mata alat.
3. Jenis mesin.
4. Jenis benda kerja.
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COOLANT.
Kesan tidak menggunakan coolant:-
1. Tatal (cip) melekat pada mata alat(insert).
2. Mata alat(insert) mudah tumpul.3. Geseran bertambah.
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STATION NUMBERS
