VascuLathe®-ASR and VascuLathe®-ACS Linear/Rotary Motion Platform

Description

Design Features

  • High integration linear/rotary motion platform
  • ER collet system for automated material clamping
  • Optional gripper assembly for tube advance
  • Advanced control architecture
  • Single or dual spindle configurations
  • Optional wet cutting
  • High-speed rotary option for rotational speeds up to 2000 rpm
VascuLathe® represents a revolutionary approach to satisfying the demanding requirements of stent manufacturing applications. The fully integrated motion system couples automated material handling functionality and wet cutting operation with high performance direct-drive linear and rotary motion capability.

Integral Linear/Rotary

The integral linear-rotary design has much greater stiffness and lower moving mass resulting in an overall higher dynamic stiffness when compared to component-based systems. The resulting increased bandwidth provides throughput improvements on the order of two to five times when compared to traditional component-level manufacturing approaches, while still maintaining submicron tolerances on tight part geometries. The higher throughput of the VascuLathe® implies that fewer machines are required to produce an equivalent number of stents, resulting in lower total labor costs and reduced floor space requirements. Alternatively, the VascuLathe® can be used to meet increased product demand within the existing manufacturing space, saving the costs associated with facilities expansion.

Automated Material Handling

The VascuLathe® is a complete motion and material handling subsystem. The system includes an automated, pneumatically activated ER collet assembly as well as an optional combined bushing/tube advance mechanism that enables the sequential, unattended manufacture of multiple stents from a single length of tubing material. A wet cutting configuration is also available for applications that require fluid delivery through the stent material during the manufacturing process.

Advanced Control Architecture

The VascuLathe® is available with a powerful, yet intuitive Aerotech control system, with which a user can conveniently optimize the current, velocity, and position servo loops for maximum performance. Advanced trajectory generation capabilities such as multi-block look ahead minimize geometry errors in tight profiles by transparently regulating cutting speed. While our Position Synchronized Laser Firing Output (PSO) functionality automatically adjusts the laser pulse frequency to match the current cutting speed to maintain optimal laser power coupling.

VascuLathe ACS/ASR

Normalized Parts Per Hour (With Equivalent Tolerance)

For a given part manufacturing tolerance the VascuLathe produces three times as many parts per hour when compared to the entry-level LaserTurn 2.

VascuLathe ACS/ASR Normalized Parts Per Hour

Part Accuracy Versus Cycle Time Comparison

When cutting speeds and cycle times are fixed by process variables, the VascuLathe and LaserTurn 1 can provide a 3X improvement in contour accuracy.

VascuLathe ACS/ASR Part Accuracy

Specifications

VascuLathe-ASR Specifications

Mechanical SpecificationsLinear AxisRotary Axis
Travel 200 mm 300 mm ±360º continuous
Accuracy ±1 μm ±73 μrad (±15 arc sec)
Bidirectional Repeatability ±0.5 μm ±15 μrad (±3 arc sec)
Straightness ±2 μm ±3 μm N/A
Flatness ±2 μm ±3 μm N/A
Pitch 39 μrad (8 arc sec) 49 μrad (10 arc sec) N/A
Yaw 39 μrad (8 arc sec) 49 μrad (10 arc sec) N/A
Maximum Speed(1) 2 m/s 800 rpm
2000 rpm (-HS option)
Tube Capacity N/A 10 mm (ER16, Dry Cut)
5.8 mm (ER16, Wet Cut)
Maximum Force (Continous) 306.6 N N/A
Maximum Torque (Continuous) N/A 2.3 N·m (Dry Cut)
1.6 N·m (Wet Cut)
Load Capacity(2) Axial 3.0 kg
Radial 2.0 kg
Moment 3 N·m
Moving Mass (Unloaded) 19 kg N/A
Rotor Inertia (Unloaded) N/A 0.0006 kg·m2
Stage Mass with Tooling Platforms 95 kg 100 kg N/A
Collet Type(3) N/A ER16
Collet Runout(4) N/A <25 μm
Minimum System Air Pressure(5) 100 psig
Material Hardcoated Aluminum Stage Body, Hardened Stainless Steel Way Covers, Stainless Steel Collet Chuck
MTBF (Mean Time Between Failure) 10,000 Hours

Notes:

  1. Maximum speed based on stage capability. Requires selection of appropriate amplifi er with suffi cient voltage and current.
  2. Maximum loads are mutually exclusive. Loading limits are due to the collet chuck mechanism. Contact Aerotech if part load requirements exceed specifi cations.
  3. Collect chuck accepts Rego-fi x ER collets manufactured to DIN6499 specifi cations only.
  4. Measured TIR of precision gage pin chucked with an ultra-precision ER collet (DIN6499) 10 mm away from collet face.
  5. Collet chuck mechanism is normally-closed. Collet mechanism required air to open collet chuck. Air supply much be dry and oil-less OR 99.99% pure
    nitrogen. Air or nitrogen must be fi ltered to 1 microns particle size or better.

VascuLathe-ACS Specifications

Mechanical SpecificationsLinear AxisRotary Axis
Travel 200 mm 300 mm ±360º continuous
Accuracy ±1 μm Calibrated(1): ±24 μrad (±5 arc sec)
Uncalibrated: ±146 μrad (±30 arc sec)
Bidirectional Repeatability ±0.5 μm ±15 μrad (±3 arc sec)
Straightness ±2 μm ±3 μm N/A
Flatness ±2 μm ±3 μm N/A
Pitch 39 μrad (8 arc sec) 49 μrad (10 arc sec) N/A
Yaw 39 μrad (8 arc sec) 49 μrad (10 arc sec) N/A
Maximum Speed(2) 2 m/s 600 rpm
Tube Capacity N/A 0.5-16 mm (ER25, Dry Cut)
1-12 mm (ER25, Wet Cut)
16-30 mm (ER40)
Maximum Force (Continous) 306.6 N N/A
Maximum Torque (Continuous) N/A 5.06 N·m
Load Capacity(3) Axial 10 kg (ER25), 15 kg (ER40)
Radial 5 kg (ER25), 10 kg (ER40)
Moment 6 N·m (ER25), 12 N·m (ER40)
Moving Mass (Unloaded) 23 kg N/A
Rotor Inertia (Unloaded) N/A 0.006 kg·m2
Stage Mass with Tooling Platforms 95 kg 100 kg N/A
Collet Type(4) N/A ER25, ER40
Collet Runout(5) N/A <25 μm
Minimum System Air Pressure(6) 100 psig
Material Hardcoated Aluminum Stage Body, Hardened Stainless Steel Way Covers, Stainless Steel Collet Chuck
MTBF (Mean Time Between Failure) 10,000 Hours

Notes:

  1. Requires Aerotech controller and part programming as a rotary axis
  2. Maximum speed based on stage capability. Requires selection of appropriate amplifi er with suffi cient voltage and current.
  3. Maximum loads are mutually exclusive. Loading limits are due to the collet chuck mechanism. Contact Aerotech if part load requirements exceed specifi cations.
  4. Collect chuck accepts Rego-fi x ER collets manufactured to DIN6499 specifi cations only.
  5. Measured TIR of precision gage pin chucked with an ultra-precision ER collet (DIN6499) 10 mm away from collet face.
  6. Collet chuck mechanism is normally-closed. Collet mechanism required air to open collet chuck. Air supply much be dry and oil-less OR 99.99% pure
    nitrogen. Air or nitrogen must be fi ltered to 1 microns particle size or better.

Electrical Specifications

Drive System Direct-drive servomotor
Feedback System Non-contact optical encoder, 1 Vpp Sinusoidal output
Maximum Bus Voltage 340 VDC

Recommended Controller

A3200 Npaq
Ndrive HLe
Ndrive HPe

Dimensions

  • VascuLathe ACS
  • VascuLathe ASR

Ordering Information

VascuLathe-ASR Linear/Rotary Motion Platform

Travel (Required)

OptionDescription
-200 200 mm linear axis travel
-300 300 mm linear axis travel

Rotary Speed (Required)

OptionDescription
-SS Standard speed rotary axis
-HS High speed rotary axis

Cutting Configuration (Required)

OptionDescription
-DCUT Dry cutting configuration
-WCUT Wet cutting configuration with fluid rotary union

Cover (Optional)

OptionDescription
-CV Protective cable cover for linear axis

Front Tooling (Optional)

OptionDescription
-FT1 Front tooling platform with gripper
-FT2 Front tooling platform with alignment gripper

Gripper Jaws (Optional)

OptionDescription
-J1 Gripper jaws for 0-10 mm tube diameters

Integration (Required)

Aerotech offers both standard and custom integration services to help you get your system fully operational as quickly as possible. The following standard integration options are available for this system. Please consult Aerotech if you are unsure what level of integration is required, or if you desire custom integration support with your system.
-TAS Integration - Test as system
Testing, integration, and documentation of a group of components as a complete system that will be used together (ex: drive, controller, and stage). This includes parameter file generation, system tuning, and documentation of the system configuration.
-TAC Integration - Test as components
Testing and integration of individual items as discrete components. This is typically used for spare parts, replacement parts, or items that will not be used or shipped together (ex: stage only). These components may or may not be part of a larger system

Accessories (ordered as separate items)

OptionDescription
Collet-ER16-CLTxxx ER16 collet - consult with Aerotech for available sizes
RingSeal-ER16-RSxx Ring seal for wet cutting - consult with aerotech for available sizes
CGF Collet and Gripper Filtration Kit

VascuLathe® ACS Linear/Rotary Motion Platform

Travel (Required)

OptionDescription
-200 200 mm linear axis travel
-300 300 mm linear axis travel

Collet Style (Required)

OptionDescription
-ER25 ER25 ultra-precision collet chuck
-ER40 ER40 ultra-precision collet chuck

Cutting Configuration (Required)

OptionDescription
-DCUT Dry cutting configuration
-WCUT Wet cutting configuration with fluid rotary union

Cover (Optional)

OptionDescription
-CV Protective cable cover for linear axis

Front Tooling (Optional)

OptionDescription
-FT1 Front tooling platform with gripper
-FT2 Front tooling platform with alignment gripper

Gripper Jaws (Optional)

OptionDescription
-J1 Gripper jaws for 0-10 mm tube diameters
-J2 Gripper jaws for 8-18 mm tube diameters
-J3 Gripper jaws for 16-26 mm tube diameters
-J4 Gripper jaws for 24-34 mm tube diameters

Metrology - Rotary (Required)

OptionDescription
-PL1 Metrology, Uncalibrated with Performance Plots
-PL2 Metrology, Calibrated (HALAR) with Performance Plotss
    Metrology option applies to rotary axis only.

Integration (Required)

Aerotech offers both standard and custom integration services to help you get your system fully operational as quickly as possible. The following standard integration options are available for this system. Please consult Aerotech if you are unsure what level of integration is required, or if you desire custom integration support with your system.
-TAS Integration - Test as system
Testing, integration, and documentation of a group of components as a complete system that will be used together (ex: drive, controller, and stage). This includes parameter file generation, system tuning, and documentation of the system configuration.
-TAC Integration - Test as components
Testing and integration of individual items as discrete components. This is typically used for spare parts, replacement parts, or items that will not be used or shipped together (ex: stage only). These components may or may not be part of a larger system

Accessories (ordered as separate items)

OptionDescription
Collet-ER25-CLTxxx ER25 collet - consult with Aerotech for available sizes
Collet-ER40-CLTxxx ER40 collet - consult with Aerotech for available sizes
RingSeal-ER25-RSxx Ring seal for wet cutting, ER25 collet - consult with Aerotech for available sizes
RingSeal-ER40-RSxx Ring seal for wet cutting, ER40 collet - consult with Aerotech for available sizes
CGF Collet and Gripper Filtration Kit