The heavy duty TV-80 CNC Lathes incorporate design features based upon the most recent
achievements in machine tool design and heavy duty machining techniques.
The lathe in standard execution is intended for:
MAIN FEATURES TV80 CNC
MACHINE EXECUTION
The machine will be generally manufactured in accordance with applicable
ISO INTERNATIONAL STANDARDS.
Paint – color as per Customer request.
LASER TEST
The cross slide in axis X (CNC controlled) total bidirectional positioning variation (error band)
according to NMTBA evaluation method and CNC bidirectional repeatability anywhere on the
axis X according to the NMTBA evaluation method are as follows:
TV 80 CNC (DISTACE BC, 40” TO 157”) |
|||||||
X |
Z |
||||||
X(+/-) (in) |
X(+/-) (mm) |
Z(+/-) (in) |
Z(+/-) (mm) |
||||
ARROR BAND(bidirectional +/-3d) |
0.00054 |
0.01366 |
0.00221 |
0.05609 |
|||
NON REPEAT (bidirectional) |
0.00038 |
0.00961 |
0.00175 |
0.04454 |
|||
Lathe accuracy requirements for laser tests:
MACHINE SPECFICATION TV 80 CNC
machine specification-tv 80 cnc |
|||
CAPACITY |
Swing over bed with covers |
inch |
35.00 |
Swing over cross slide |
inch |
32 |
|
Distance between centers |
inch |
120 |
|
Workpiece weight BC |
|||
without steadies |
lbs |
15000 |
|
with two steadies |
lbs |
20000 |
|
HEADSTOCK |
Spindle speed range |
rpm |
1 ÷500 |
Front bearing |
inch |
10.2 |
|
Spindle bore |
inch |
4.13 |
|
Spindle nose |
A2-15 |
||
Max. torque |
Nm |
30 000 |
|
Spindle speed |
RPM |
1÷500 |
|
Main drive AC motor |
HP |
100 |
|
CARRIAGE & APRON |
Turning cross slide travel axis X |
inch |
25 – 1/2 |
Width of carriage |
inch |
59 |
|
Turning length axis Z |
inch |
120 |
|
Width of cross slides |
inch |
20 |
|
SAUTER DISK TYPE TOOL TUREET |
Sauter 4-position heavy duty turret |
0.5.300.032 |
|
FEEDS |
Range of feed per revolution (G95) Longitudinal & Cross |
ipm |
.0002 – 9.8 |
Range of feed per minute (G94) Longitudinal & Cross |
ipm |
.01 – 200 |
|
Thread cutting feed (G33) |
ipr |
.0002 – 9.8 |
|
Rapid Travel Longitudinal & Cross |
ipm |
200 |
|
TAILSTOCK NC-POSITIONED TAILSTOCK AND AUTO CLAMPED |
Quill cross section |
inch |
11 x 11 |
Quill travel (W-axis) |
IPM |
.01 to 27 |
|
Quill travel-workload cap. 20,000 lbs |
inch |
12 |
|
Size of center |
Flange/Metric |
||
Quill rapid travel |
inch |
14 |
|
Spindle noise |
A1-8 |
||
Tailstock rapid travel |
IPM |
70 |
|
MISCELLANEOUS |
Main drive AC motor-100 HP continuous |
hp |
100 |
Width of bed |
inch |
57 |
|
Net weight for 120” between centers |
lbs |
60000 |
|
BED
The bed made of four guideways is a box-type design produced from high-grade pearlite cast iron. The guideways are induction hardened up to 60 ± 2 HRc – 2 ways for the tailstock are slide and 2 ways for the carriage are roller. The bed is provided with special openings and chutes facilitating the removal of chips at the rear of the lathe. The bottom part of the bed is machined and adapted to set up the machine on leveling wedges. The bed width is 57”. The Y-axis ball screw is located between the two front ways of the bed . The use of hardened ways, high rigidity of bed castings stress reliving treatment and precision machining ensure long-life and accurate operation of all assemblies set on the bed.HEADSTOCK
The headstock of a compact design is fixed to the bed of the lathe. The spindle runs in high accuracy, large diameter Timken roller bearings. The shafts and gears are made of heat treated alloy steel. By the application of closely supported shafts and ground gears the headstock runs very smoothly at all speeds. The main spindle is powered by a 100 HP Siemens AC Drive (infinitely variable). The change of transmission ratio in this gearbox is performed by means of sliding gears, electromechanical operated. The main motor is also used to brake the headstock; additional brake release provides emergency protection in case of power breakdown.
A separate lubrication unit driven by its own motor lubricates the headstock’s gears and bearings.
A pressure switch ensures that headstock does not operate without proper lubrication.
CARRIAGE
The carriage slides along the bed on rollerways. The cross slideways are flat made of hardened steel ways. The longitudinal and cross slideways are lubricated by a separate hydraulic unit. Longitudinal and cross movements are power driven.. Cross slide is driven in cross direction by AC motor via cross ball screw. Heidenhain scale linear provide accurate measurement in X, Z, axes.
The apron allows the saddle to obtain longitudinal feeds and rapid traverses. Longitudinal travel is obtained be means of a by digital AC Servo Drives via ball screw. Both the carriage & the headstock are controlled from the control station & permit full range of 2-axis turning, threading & contouring. The saddle & cross slide ways are lubricated by a separate lubrication unit.
TURRET
The Sauter tool heavy duty turret consists essentially of a housing containing the functional components. The front of the housing is provided with a disk. Tool holders can be fastened to this disk, witch has a centering features and fastening threads. By using a three-part Hirth radial teething , no axial offset of the location disk acquire during locking and unlocking. The rotation movement and the locking are performed by three-phase motor located on the back of the housing. A coolant connection enables direct feed of the coolant into the tool holder. The electrical components are under protective cover on the back of the turret.
SAUTER TURRET |
Sauter 4 position heavy duty turret |
Model 0.5.300.032 |
TAILSTOCK
The tailstock travels along inner flat steel hardened and ground bedways. The tailstock body slideways have bronze lining strips.. The tailstock quill of cross section 11”x11” has mechanical travel up to max-12,0”. The tailstock spindle with is arranged in the quill on precision roller bearings. Constant pressure of the tailstock to the workpiece is ensured by the application of disk springs compensating the temperature influence. The pressure rate is shown on the indicator gauge located on the tailstock body electronic. The tailstock travel along the bed is effected mechanically by means of special gearbox. Tailstock movement and its clamping is controlled from the tailstock control panel.
CONTROL PANEL
The control panel conveniently groups the 12.1” Color LCD monitor and all controls. Unique design allows the complete control to be easily positioned to operators desired location.
CHIP CONVEYOR
The chip conveyor is strongly recommended to complete this remarkably efficient machine. With
a chip conveyor, hot chips are quickly transferred beyond working area thus preventing possible thermal deformation of the bed.
LEVELLING JACKS
As mentioned in BED chapter, leveling the lathes requires jacks to be placed between bed lower surface and foundation. These jacks consist of base plate and leveling bushings.
CNC CONTROL
The lathe will be equipped with CNC numerical control system of SIEMENS type
SINUMERIK 810D .
Machining of the workpiece is automatically, according the technological programme, which is stored in the CNC system.
Simple machining operations can be performed manually from the CNC desk.
To facilitate programming of the simple operations, there can be supplied as Special Equipment a special software . Motions of ravel units of the machine are limited by limit switches and additional switches of emergency limits. The machine has electrical interlockings that increase safety of its operating. Elements of electrical and electronic apparatuses are situated in a separate control cabinet.
The lathe will be adapted for the following electric parameters:
STANDARD EQUIPMENT TV 80 CNC
No: 1708 1989 (E) /tools and test workpieces will be provided by Customer/
will be provided by Customer/
(programming excluded)
CNC Manual
Machine guard
ALL SPECIFICATIONS ARE APPROXIMATE & NOT BINDING
Call: (718) 492-7400
Fax: (718) 439-3930
E-mail: info@sandsmachinery.com