ASD-Cx Ultra Precision Air Bearing Wheel Heads (Tool Spindles) from Levicron
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Aug 26,2015
The ASD-Cx ultra precision air bearing wheel heads (tool spindles) are built specifically for the ultra-precision machining market to manufacture high precision optical parts possessing a surface roughness of <10 nm.
Levicron’s design goal is to achieve outstanding precision and dynamic behaviour than any other spindle available in the market.
The ASD-Cx ultra precision air bearing wheel heads are based on Levicron’s patented static air bearing technology, which allows only very small errors in motion and enables a higher load capacity, reliability and stiffness at the same time.
Coupled with the installed iron-less permanent magnet motor, this spindle design offers a high level precision, robustness and dynamics.
The modified, in-house developed and manufactured automatic tool changing (ATC) system assures a tool change within 0.5 µm tool run-out and in a few seconds, whereas in other spindles a number of hours are required to alter and set a tool. Balancing after a tool modification is also not needed in the case of basic milling and grinding tools.
The ASD-C is also provided with a giant magnetoresistive effect rotary encoder for motor commutations and shaft angular positioning within 0.05° and up to 120 krpm. If a smoother operation at higher speeds is required, a sensorless option with either a 200 V max or 400 V max motor is available.
The ASD-Cx ultra precision air bearing wheel heads are offered in three versions:
ASD060Cx – 60,000 rpm, quick tool change collet system (3 mm, 4 mm, 6 mm, 1/8" or 1/4")
ASD080Cx – 80,000 rpm, quick tool change collet system (3 mm, 4 mm, 6 mm, 1/8" or 1/4")
ASD100Cx – 100,000 rpm, quick tool change collet system (3 mm, 4 mm, 6 mm, 1/8" or 1/4")
Retro-Fit Kit
Based on high demand, Levicron has designed a ready-to-use and retro-fit kit for ultra-precision machining centers which enables users to improve their machine tool or substitute existing spindles with Levicron ultra-precision spindles.
Re-programming is not required as the existing control lines of the machine control can be used. As an alternative, a stand-alone kit can be used on several machines in conjunction with a handheld device or a PC/laptop.
Key Features
The features of the retro-fit kit include:
Motor spindle ASD-H25/U, ASD-Cx/U or ASD-Px are available for customized applications
Spindle mount can be made from steel or Invar, for T-slot table and with matched bore pattern and center height
Drive fully configured and matching your motor choice (iron-less or high-torque option), your mains (1x220V, 3x210V, 3x400V) and machine control in and outputs
Motor filter
Brake resistor
Precision chiller with +/- 0.1°C coolant inlet temperature stability
Wiring and pipework are complete and tested
Optional pressure switch for bearing air and coolant supply
Optional precision height adjuster for spindle mount
CNC Machining Kit
For CNC machine tools, drive units are mostly combined with the machine control and so the motor and encoder features will have to be modified, programmed and tested separately. A custom spindle flange is mostly required due to the complex and frequently closed Z-stock designs.
Levicron has designed several spindle integration kits with tailored flange designs and encoder adjustments to suit all major machine control types, thereby ensuring a secure and fast integration of Levicron’s spindles with the user’s machine.
Key Features
The features of the CNC machining kit include:
Tooling spindle ASD-H25/K or ASD-Cx/K can be chosen to meet individual application and machine needs
Spindle flange is made from steel, as shrink-fit or clamping design
Customized spindle housing design is available for higher quantities
Motor filter
Wiring and pipework are complete and tested
Commissioning - Mechanical connection; pipework; wiring; motor parameters, encoder and reference pulse adjustment and testing
Typical Applications and Recommendations
The basic applications and recommendations for the ASD-Cx ultra precision air bearing wheel heads include:
Micro-machining and HSC-milling with tools of a diameter <2 mm for hardened steel and <4 mm for aluminum
Applications/operations with more than 50% at >60 krpm
Coordinate and form grinding of work piece made from hardened steel, ceramics, carbide metal and other brittle materials with tools of a diameter <10 mm and speeds >60 krpm
(AZOM)
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1.The news above mentioned with detailed source are from internet.We are trying our best to assure they are accurate ,timely and safe so as to let bearing users and sellers read more related info.However, it doesn't mean we agree with any point of view referred in above contents and we are not responsible for the authenticity. If you want to publish the news,please note the source and you will be legally responsible for the news published.
2.All news edited and translated by us are specially noted the source"CBCC".
3.For investors,please be cautious for all news.We don't bear any damage brought by late and inaccurate news.
4.If the news we published involves copyright of yours,just let us know.
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