WFT 13 CNC
Horizontal Milling Machine
Presentation
machine
WFT 13 CNC
WFT 13 CNC
Manufacturer:
CTPark Brno
Tuřanka 104
627 00 Brno - Slatina
Horizontal Milling Machine
2
WFT 13 CNC
Horizontal Milling Machine
Basic concepts
Linear guiding
Electro-optic linear
3
WFT 13 CNC
Horizontal Milling Machine
Basic concepts
Ball screw
4
WFT 13 CNC
Horizontal Milling Machine
Basic characteristics of the machine
The WFT 13 CNC is a new machine of its modern
design. It is designed with standardized components
of world renowned manufacturers mostly (Bosch,
Siemens, Heidenhain, SKF,…). Thanks to such design,
a high variability has reached together with a
favourable rate price/output and with the advantageous
worldwide service assistance.
The Horizontal Milling and Boring Machine WFT 13
CNC is a continuously controlled table-type milling and
boring machine of its up-to-date design, which is ideal
for a powerful complete machining of work pieces up to
15 tons.
5
WFT 13 CNC
Horizontal Milling Machine
Basic characteristics of the machine
•
•
•
•
•
•
•
continuously controlled Horizontal Milling and
Boring Machine WFT 13 CNC
T arrangement of beds
4 linear axes + rotary table
out-travel working spindle
the machine is designed for its universal
employment in the engineering production
it is suitable as for rough operations, as for a
precise machining of moulds
optionally, it can be equipped with a tool magazine
with manipulator (ATC), cooling of tools through the
spindle axis, conveyer of chips
6
WFT 13 CNC
Horizontal Milling Machine
Basic characteristics of the machine
The machine is equipped with the CNC control system
HEIDENHAIN iTNC 530 (SIEMENS Sinumeric 840D),
which enables control of four axes X, Y, Z, W in the
positional confinement (the spindle out-travel axis as
an auxiliary one) and axis C in the speed confinement.
The positional measurement at the coordinates X, Y, Z
and W is carried out by an encoder (optionally by linear
measurement of X,Y,Z). The spindle angle positioning
in the axis C is controlled by a rotary sensor and the
mutual positional coupling of the spindle and the
feeding screw enables cutting of threads.
7
WFT 13 CNC
Horizontal Milling Machine
To make understanding of the machine separate functions
easy and to help your orientation in the Instruction Manual
itself, we have parted the machine to following groups:
A.
B.
C.
D.
E.
F.
G.
H.
Headstock
Frame
Headstock slide
Frame slide
Crosswise bed (axis Z)
Rotary table
Slide of the rotary table
Longitudinal bed (axis X)
B
A
H
C
D
E
G
F
H
8
WFT 13 CNC
Horizontal Milling Machine
Headstock
The headstock is a cast part of nodular cast iron, in which
the working spindle and two-stage gear-box are
assembled. Gears are shifted automatically acc. to the
preset speed of the spindle. For the drive the spindle
asynchronous motor is applied, enabling steeples speed
regulation.
The headstock is designed for machine tools, where
material is cut by turning tools (milling cutter, drill,…),
clamped in the rotating spindle, or in special technological
accessories approved by the machine manufacturer.
9
WFT 13 CNC
Horizontal Milling Machine
Headstock
The headstock can be used for drilling, boring, milling,
thread cutting and grinding. It is designed namely for its
assembly on horizontal boring and milling machines.
These machine tools serve for machining of case, or plate
shaped work pieces, as well as for complicated parts of
grey and nodular cast iron, cast steel, steel and nonferrous materials.
10
WFT 13 CNC
Horizontal Milling Machine
The headstock consists of following main parts:
•
•
•
•
•
•
Slide:
Spindle drive:
Main seating:
Out-travel drive:
Working spindle:
Hollow spindle:
11
WFT 13 CNC
Horizontal Milling Machine
Headstock scheme
Drive of spindle
out-travel
Ball screw
Main motor
Gear-box ZF
Belt
transmission
Working
spindle
Clamp
House of
out-travel
house
Slide
Hollow
spindle
Inlet of
cooling
Main seating
12
WFT 13 CNC
Horizontal Milling Machine
Headstock slide
This is the cast. Sleigh
provides vertical movement in
the Y, Z using linear lines,
which is located on the stand.
While ensuring the movement
of the strip axis using linear
lines, which is located on the
strip.
Headstock
Headstock
slide
13
WFT 13 CNC
Horizontal Milling Machine
Stiffening flange
It serves for the out-travelled spindle stiffening, by which a higher rigidity and
steadiness at machining can be reached.
Slide
Stiffening
flange
Inlet of
cooling
Working
spindle
14
WFT 13 CNC
Horizontal Milling Machine
Frame
The frame is a column-type casting of steel cast GG
30+0,2 Cr+0,6 Cu. It is richly ribbed. By the lower flange it
is screwed to the frame slide. The frame comprises a
feeding mechanism with a motion screw for the headstock
travel.
One end of the feeding screw is assembled in the console
body with the motor on the frame upper flange and the
other end id seated in the bearing body on the frame slide.
15
WFT 13 CNC
Horizontal Milling Machine
Frame
The measurement of the Y-axis is carried out by means of
scanning from the motor by means of the “Encoder “
(optionally a linear optic measurement by a ruler is
available).
The ball screw nut, all sliding surface for the headstock
travel are lubricated centrally by an oil lubrication system.
The ZARN bearing of the ball screw is greased by a
grease filling acc. to the lubrication plan of this Instruction
manual.
16
WFT 13 CNC
Horizontal Milling Machine
Frame of the machine
17
WFT 13 CNC
Horizontal Milling Machine
Longitudinal bed (axis X)
The group table and table slide creates one assembly unit.
These parts are castings of grey iron GG 30. From below the
table slide is guided along the crosswise bed by a sliding way.
This machine is equipped with the rotary table of our own
design and production. The rotary table with its longitudinal
adjustment consists of the firm bed, on which the table slide
with the rotationally seated table is moving. The table
positional measurement in the axis B is performed by an
angle sensor, which is fixed to the firm pin in the table centre.
18
WFT 13 CNC
Horizontal Milling Machine
Longitudinal bed (axis X)
19
WFT 13 CNC
Horizontal Milling Machine
Platform for operators (Screen)
The platform for operators is fastened to the
foundation. Inside the cabinet the main control
panel of the control system is installed and there
are also storage compartments for tools prepared
here. By large loopholes a sufficient lookout is
guaranteed. Safety elements on the cabinet door
and a hardened safety glass provide the safety of
operators.
20
WFT 13 CNC
Horizontal Milling Machine
Screen (operators cabinet)
with the control panel
21
WFT 13 CNC
Horizontal Milling Machine
Control system – Heidenhain, iTNC 530
The machine is equipped with the CNC control system
HEIDENHAIN iTNC 530 (SIEMENS Sinumeric 840D), which
enables control of four axes X, Y, Z, W in the positional
confinement (the spindle out-travel axis as an auxiliary
one) and axis C in the speed confinement. The positional
measurement at the coordinates X, Y, Z and W is carried
out by an encoder (optionally by linear measurement of
X,Y,Z).
22
WFT 13 CNC
Horizontal Milling Machine
Main control panel and hand controllers
HR 410
HR 420
23
WFT 13 CNC
Horizontal Milling Machine
Conveyer of chips
For obtaining chips from the work area can use the
machine screw or belt conveyors chips.
The conveyer of chips serves, at the same time, as a
cooling liquid downlead and the first stage of its
filtration. By this conveyer rough impurities are
transported into the vessel, prepared at the conveyer
outlet.
24
WFT 13 CNC
Horizontal Milling Machine
Conveyer of chips
25
WFT 13 CNC
Horizontal Milling Machine
Outer rinsing cooling
• The outer rinsing cooling creates an integral part of
the machine WFT 13, until otherwise required by the
customer.
• From the conveyer of chips cooling emulsion is
pumped-over to the main sludge reservoir of its 550 l
capacity. From this reservoir emulsion is pumped by
a pump of its outlet 55 l/min and displacement 4
bars through the headstock up to the tool by hoses.
26
WFT 13 CNC
Horizontal Milling Machine
Pump and sludge reservoir of the rinsing cooling
27
WFT 13 CNC
Horizontal Milling Machine
Hydraulic aggregate – HYTEK
• The hydraulic aggregate serves for the tool
unclamping (8 - 10 MPa). Furthermore, it
serves also for the rotary table stiffening (axis
B), where pressure is decreased by a reduction
valve to 0,6 MPa.
28
WFT 13 CNC
Horizontal Milling Machine
Hydraulic aggregate – HYTEK
29
WFT 13 CNC
Horizontal Milling Machine
Other clamping elements
Clamping angle
Clamping block
30
WFT 13 CNC
Horizontal Milling Machine
Table
• This machine is equipped with the rotary table of our own
design and production. The rotary table with its longitudinal
adjustment consists of the firm bed, on which the table slide
with the rotationally seated table is moving. The table
positional measurement in the axis B is performed by an angle
sensor, which is fixed to the firm pin in the table centre. The
machine is currently equipped with one motor Harmonic
Drive and two mechanically pre-tensioned pinions for the play
elimination in the toothed rim (optionally, the machine can be
delivered with its two-motors version and the play is then
eliminated by the electronic system MASTER – SLAVE).
31
WFT 13 CNC
Horizontal Milling Machine
Table
• Travel in the axis X is delivered in standard lengths 1500, 2000,
2500, 3000, 3500, 4000 mm.
Following rotary table sizes can be delivered:
• Rotary table 1 600 x 1 800 mm
• Rotary table 1 800 x 2 200 mm
32
WFT 13 CNC
Horizontal Milling Machine
Table
33
WFT 13 CNC
Horizontal Milling Machine
Manual universal milling head UHM 30
• It is a universal manual milling head, serving for
machining of upper, side and oblique surfaces.
• If a linear interpolation is used, also drilling and
boring of oblique holes is available by means of this
milling head.
34
WFT 13 CNC
Horizontal Milling Machine
Basic technical data
•
•
•
•
•
•
•
•
•
•
•
Clamping taper ISO 50
(or BT 50)
Tool DIN 69871 – clamping stem DIN 69872
ISO 7388, type A
(or MAS P50T-1 (45°))
Hydraulic releasing of tools
Axial compensator on the main headstock;
on the released tool
Maximal speed:
3000 r.p.m. – with the standard version
Maximal output: 26 kW
Milling head turning 180°
Maximal torque 1600 Nm
35
WFT 13 CNC
Horizontal Milling Machine
Basic machine motions WFT 13 CNC
Description of the separate machine motion axes:
X – Longitudinal motion of the table
Y – Vertical motion of the headstock
Z – Crosswise motion of the frame
W – Out-travel of the working spindle
B – Rotation of the table
C – Rotation of the working spindle
36
WFT 13 CNC
Horizontal Milling Machine
Basic technical data of the machine
Headstock GB 3000
Spindle taper hole
Tool taper
Tool stem taper
Working spindle diameter
Spindle speed
Max. spindle torque
Slide dimensions
Main motor output
ISO 50, BT 50
DIN 69871, MAS P50T-1 (45°)
DIN 69872, MAS P50T-1 (45°)
ø130
mm
10-3 000
r.p.m.
1384, 1628, 1791, 2008
Nm
400 x 400
mm
17, 22, 30, 37
kW
37
WFT 13 CNC
Horizontal Milling Machine
Basic technical data of the machine
Frame incl. travels
Table longitudinal travel – X
Headstock vertical travel – Y
Frame crosswise travel - Z
Spindle out-travel W
Working feed in all axes
Travel speeds X, Y
Travel speeds Z, W
Max. traversable forces in axes X and Y
Max. traversable forces in axes Z and W
Positioning accuracy X, Y, Z, W
Positioning repeatability X, Y, Z, W
1500, 2000, 2500,
3000, 3500
1700, 2000, 2500
1200, 1700
730
1 – 8 000
12 000
10 000
20
30
0.008
0.005
mm
mm
mm
mm
mm/min
mm/min
mm/min
kN
kN
mm
mm
38
WFT 13 CNC
Horizontal Milling Machine
Basic technical data of the machine
Hydraulic and pneumatic systems
Tool unclamping pressure
10 - 15
Auxiliary circuit pressure
8
Tool clamping force
25
Tool clamping
hydro-mechanical
Pressure of inlet air for the tool cooling case
0,6
Supplied air quantity for the tool cooling case
400
Automatic tool exchange AVN (optionally)
Number of tools
20, 32, 40
Time for the tool exchange
14
Max. tool weight
20
Max. tool diameter at the full occupation
125
Max. tool diameter (every second position)
250
Max. tool length
400
Hydraulic and pneumatic systems
MPa
MPa
kN
MPa
l/min
pc
sec
kg
mm
mm
mm
39
WFT 13 CNC
Horizontal Milling Machine
Basic technical data of the machine
Cooling
Low-pressure – max. delivered quantity
Low-pressure – cooling liquid pressure
Low-pressure – tank capacity
High-pressure – max. delivered quantity (optional)
High-pressure – pressure of cooling liquid, cooling
through the spindle centre (optional)
High-pressure – tank capacity (optional)
50
4
1 600
37
l/min
bar
l
l/min
10 - 40
bar
180
l
80
3 x 400
±5
24
50
kVA
V
%
V
Hz
Electric data
Total installed input
Operational voltage
Operational voltage tolerance
Managing and control voltage
Operational voltage frequency
40
WFT 13 CNC
Horizontal Milling Machine
Thank you for your attention
JH
41