Nakamura NTJ 100 multitasking lathe

Nakamura multitasking lathe 

NTJ 100 Leading the industry in
With milling-tools and Y axis offered as standard equipment

Up to 54 tool stations for Turning, 24 tool stations for milling tools
Míllíng-tool motor 7.1 / 2.2kW x 2
Y-axís stroke Upper / 80mm, Lower / 65mm

Dodecagonal / 24-statíon
Number of milling stations:12
Servo-driven turre
Turret Servo Grípper type
Part catcher is a device to unload the workpiece and bring it out of the machine.
Swing-in Bucket 
15-65mm 
20 - 150mm
3kg
Stocker type
Outlet chute type
Part catcher G/ Gripper type

Optíon
Hand
12-65mm
15 - 200mm
1.5kg
Conveyor + Chute type

Machíníng tíme
Materíal
8min.2sec.
SUS303 (J1S)
Blank Bar / φ 50mm

C-axìs
C-axis indexing speed : 600min-1
180° indexing : 0.3sec.
360° indexing : 0.38sec.
Left and right C-axis synchronization for parts clamped by the left and right side chucks simultaneously

Pícture 1 shows 1 mm-thick rectangular segment ín the middle.
Pícture 2 shows segment-fracture due to no C-axis synchronízatíon

Comparíson of C-axís índexíng tíme
Wíth C-axis synchronization

Wíthout C-axis synchronization

NT thermal compensatíon
Every machíne compensates for thermal growth by using a CNC software compensation technique for automatícally correcting thermal errors. Deflections caused by thermal growth can be predicted, based on input from sensors placed on various components in the machine.

Ambient temperature
Upper Lower Unit
Spindle
Machine base

NTJ-100
By íntroducíng faster motor acceleration / deceleratíon, machiníng efficíency was improved.

Maín functíon
• NT Manual Guíde i
• NT Work Navigator
• Airbag (Overload detection)
• Advanced NT Nurse
• Status Display Function
• Setup Display
• Trouble Guidance
• Productivity Function N TJ-100
• Operation Level Control Function
• Warm up Function
• Built-in Loading Device Setting Screen
• Parts Catcher G Operatíon Function
• NT Machine Simulation
• NT Collision Guard
• NT Multitaskíng Office
• Net Monítor

Cut-ín Check
The machine can be stopped immediately while in automatic cycle. After reading G00
command in the machining program, the Spindle, Tool spindle, Axis Feeding and
Coolant  will stop. It is faster than M01 optional stop. After checking the machine internal
status, the machining can be restarted by pressing "Program restart" button.

This cycle is used during part transfer from left to right side spindle. Once part corıtact wìth the jaws or stopper of the right side spindle has been confirmed, the right side spindle servo axis stops.
• Contact force can be changed in the program.
•It is possible to set OK/ NG range as well.
• An additíonal work pusher for the right síde ís not requíred and cycle tíme
can be reduced.

Thrust force of center support can be set in the program by using servo motor
technology, which helps keeping a constant pushing thrust during cutting.
• It ís available for Z axís and В2 axís.
• Quíll thrust force can be changed in the program.
• It is possible to set OK/ NG range as well.

Double safety features for maximum protectíon NT collísion Guard to avoíd machíne collísíon and Aír bag functíon (Abnormal load detectíon) to mínímíze damage even ín case of collísíon.

Simulation is performed to check the programs without
running the machine. This helps prevent machine collisions due to programming or setup errors.

Simulation of part machining.
There are several view screen display settings, such as machine display, turret display and tooling display.

It is possible to choose between "with" or "wìthout" program
display. The color of the program block being simulated can be set to be displayed in a different color.

Preventíve safety technology - Machine collisions are avoidable!
This function is available in automatic mode and manual mode. Collisions can be prevented,
especially after modifying the program, or changing the tool geometry offset. Registered
machine data, chucks, tools, holders, and parts are used to monitor the machine during
automatic, manual or jog movement, and recognize in advance collisions before they
happen. Even turret indexing is monitored to avoid collisions, drastically reducing machine collision risks, especially during set up.

• Model setup was simplífíed.
Type of tool beíng índexed ís automatícally sorted out from the program, and the tool
model can be selected from a dísplayed líst.

Nakamura-Tome machínes will not break for the slightest collísion, as other machínes do. The function minimize damage in case of collision.
Even wíth barrier functíon, machíne collísíons may occur
Soft barrier function is not perfect.
If wrong data is ínput, a collision will occur.

When unavoídable human error results in machine collision,
there ís no reason to paníc.
All Nakamura-Tome machines are equipped with a safety feature called
"airbag" (overload detection), which will greatly reduce the impact force and prevent heavy damage to the machine.

•Advanced NT Work Navigator!
The navigation function is expanded to also ínclude the X and Y-axis. Coordinate
Recognítion can made the part's outer surface in the X or Y-Axis direction.
•No fíxtures requíred
Machining parts with non-round shapes, such as forgíngs or castings requires that the
raw part coordinates be recognized by the
CNC control. In order to achieve this without requiring extra cost or additional options, the NT Navigator is used. It works just by touching the part with a simple inexpensive probe (mostly round bar mounted on a tool holder) and using the torque control feature of
the servo-motor, which is to record required coordinates in the CNC. The NT Navigator is a cost cutting feature in multitasking machines, eliminating the need for positioning fixtures and special clamping devices.