- Fast tool servo designed specifically for cutting toric lens profiles
- 4000 microns of total travel
- Compact drive technology
- Non-proprietary, open programming syntax
- High-performance in a cost-effective package
- Reaction mass design minimizes vibration-induced errors on lens turning platform
- Small size and low moving mass enable higher machine throughput
The TLG (Toric Lens Generator) is a single-axis, high-speed oscillating tool optimized for the production of toric lens profiles. Competitive oscillating tools are designed to manufacture multi-faceted lens profiles in metallic materials. As such they are over-designed for turning toric profiles in materials commonly used in the manufacturing of IOLs and contact lenses. This “excess” capability results in a system that is overpriced, oversized, and unnecessarily complex to program.
The Aerotech TLG was developed with the primary purpose of creating toric lens profiles in IOL and contact lens materials rotating at speeds of up to 6000 rpm. By limiting the application scope of the product, Aerotech is able to develop a smaller, less costly solution than competitive products. The TLG is equipped with an advanced reaction-mass design that virtually eliminates vibrational errors that would otherwise be introduced into the lens manufacturing platform, thus resulting in a high-quality lens surface finish. Furthermore, a tool micro-height adjuster allows for ±500 µm of adjustable range using a very-high-resolution adjusting mechanism that greatly reduces or eliminates tool centering errors resulting in reduced polishing time.
Open Programming Language
The TLG and its supporting drive technology are designed to work with Aerotech’s A3200 Automation platform, a scalable networked system capable of supporting up to 32 axes. The A3200 system is programmed directly in industry standard G-code or with AeroBasic™ commands that provide access to capabilities beyond standard machine-tool syntax. Tool paths are created using the standard toric “Z” height algorithm which is completely accessible to the user. The algorithm can be customized to support an aspheric base profile or non-orthogonal major and minor toric axes.
The TLG uses Aerotech’s Ndrive-FLS (Fast Linear Servo) drive technology. The linear power stage reduces following errors during the direction reversals of the tool resulting in submicron-level form errors. At 100 x 223 x 174 mm in size the Ndrive-FLS is significantly smaller than competitive drive products allowing it to be mounted inside the machine base, reducing the overall size of the machine.
|Maximum Speed||600 mm/s|
|Maximum Acceleration||20 g|
|Servo 0 dB Crossover Frequency(1)||>500 Hz|
|Maximum Pk-Valley Sinusoidal Motion||Continuous(2)||75 µm @ 200 Hz (6000 rpm)
305 µm @ 100 Hz (3000 rpm)
1200 µm @ 50 Hz (1500 rpm)
|Peak||90 µm @ 200 Hz (6000 rpm)
560 µm @ 100 Hz (3000 rpm)
3300 µm @ 50 Hz (1500 rpm)
|Stage Mass||3.3 kg|
|Material||Aluminum Body/Black Anodize Finish|
|Tool Height Adjustment||±500 µm|
|Tool Height Adjustment Resolution||25 µm/rev Differential Screw|
- Certified with each stage. Requires Aerotech controller.
- Requires 10 psi cooling air to be supplied to the stage.
|Series||Travel||Tool Holder||Cable Length||Adapter Plate Option|
TLG Series (Required)
|TLG||Toric Lens Generator|
|-4000||4000 µm travel direct-drive linear stage|
Tool Holder (Required)
|-T1||Diamond insert tool holder|
Cable Length (Required)
|-C0300||300 mm cable length|
|-C0800||800 mm cable length|
|-C1300||1300 mm cable length|
Adapter Plate (Optional)
|-F1||50 mm x 50 mm bolt pattern|