VascuLathe ACS/ASR 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 coupled to Aerotech’s advanced A3200 control system. The A3200 is a 100% digital system with high performance FireWire® networked drives. With this fully digital architecture, it is possible to 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 HALAR(1): ±24 μrad (±5 arc sec)
Standard: ±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 Ordering Information

Rotary Axis

OptionDescription
-NC-ER16 Normally-closed ER16 collet closer; support tube sizes from 0.5 mm to 10 mm
-NC-ER16-WCRU Normally-closed ER16 collet closer with wet cutting option; support tube sizes from 0.5 mm to 5.8 mm; rated for 100 psig fluid pressure with fluid delivery through the tube; includes internal seal and water jacket/pressure vessel
-HS-NC-ER16 High-speed rotary option; normally-closed ER16 collet closer; support tube sizes from 0.5 mm to 10 mm
-HS-NC-ER16-WCRU High-speed rotary option; normally-closed ER16 collet closer with wet cutting option; support tube sizes from 0.5 mm to 5.8 mm; rated for 100 psig fluid pressure with fluid delivery through the tube; includes internal seal and water jacket/pressure vessel

Linear Axis Options

OptionDescription
-200S 200 mm linear axis travel
-200C 200 mm linear axis travel; protective CMS cover
-300S 300 mm linear axis travel
-300C 300 mm linear axis travel; protective CMS cover

Tooling Options

OptionDescription
-AG Steady rest bushing alignment assembly with manual Y/Z adjustment and pneumatically-activated tube clamp/advance mechanism
-G Pneumatically-activated tube clamp/advance mechanism

Gripper Jaw Options

OptionDescription
-J0-10 Gripper jaws with offsets to grip from 0-10 mm tube diameter (used with -AG and -G options)

Air Filtering/Pneumatic Options

OptionDescription
-PNG Pneumatics assembly for Vasculathe-ASR with gripper (-AG); includes filter, dryer, pneumatic hosing, solenoid valve and solid-state relay to actuate collet chuck and gripper
-PN Pneumatics assembly for Vasculathe-ASR without gripper; includes filter, dryer, pneumatic hosing, solenoid valve and solid-state relay to actuate collet chuck
-FD Pneumatics assembly for conditioning incoming air; includes filter and dryer assembly

Water Jacket Seal

Option
Consult factory for range of supported tube diameters for water jacket seal assemblies

ER Collets(1)

Option
Consult factory for range of available ER collets

Note: Requires Rego-Fix electropolished collets for proper operation

Controller Options

OptionDescription
-Ndrive HPe Two-axis A3200 control system with Nview MMI and Ndrive HPe-IOPSO-DUALPSO-AUXPWR-MXH panel-mount digital networked drives; includes all motor power and feedback cabling
-Ndrive HLe Two-axis A3200 control system with Nview MMI and Ndrive HLe-IOPSO-DUALPSO-AUXPWR-MXH panel-mount digital networked drives; includes all motor power and feedback cabling
-Npaq Two-axis A3200 control system with Nview MMI and Npaq-DL4010-MXR2-DUALPSO-ESTOP1 19 inch rack-mount digital networked drive chassis; includes all motor power and feedback cabling

Note: See A3200 product documentation for additional information on controller and drives.

VascuLathe® ACS Ordering Information

Rotary Axis

OptionDescription
-ER25 Rotary axis with ER25 collet chuck; supports tube sizes from 0.5 mm to 16 mm
-ER40 Rotary axis with ER40 collet chuck; supports tube sizes from 16 mm to 30 mm

Fluid Configuration

OptionDescription
-WC Wet cutting option; rated for 100 psig fluid pressure with fluid delivery through the tube, includes internal seal and water jacket/pressure vessel (-ER25 option only); max tube size is 12 mm
-DC Dry cutting option; no internal sealing for fluid delivery (-ER25 and -ER40 options)

Linear Axis Options

OptionDescription
-200S 200 mm linear axis travel
-200C 200 mm linear axis travel; protective CMS cover
-300S 300 mm linear axis travel
-300C 300 mm linear axis travel; protective CMS cover

Tooling Options

OptionDescription
-AG Steady rest bushing alignment assembly with manual Y/Z adjustment and pneumatically-activated tube clamp/advance mechanism
-G Pneumatically-activated tube clamp/advance mechanism

Gripper Jaw Options

OptionDescription
-J0-10 Gripper jaws with offsets to grip from 0-10 mm tube diameter (used with -AG and -G options)
-J8-18 Gripper jaws with offsets to grip from 8-18 mm tube diameter (used with -AG and -G options)
-J16-26 Gripper jaws with offsets to grip from 16-26 mm tube diameter (used with -AG and -G options)
-J24-34 Gripper jaws with offsets to grip from 24-34 mm tube diameter (used with -AG and -G options)

Air Filtering/Pneumatic Options

OptionDescription
-PNG Pneumatics assembly for Vasculathe-ASR with gripper (-AG); includes filter, dryer, pneumatic hosing, solenoid valve and solid-state relay to actuate collet chuck and gripper
-PN Pneumatics assembly for Vasculathe-ASR without gripper; includes filter, dryer, pneumatic hosing, solenoid valve and solid-state relay to actuate collet chuck
-FD Pneumatics assembly for conditioning incoming air; includes filter and dryer assembly

Water Jacket Seal

Option
Consult factory for range of supported tube diameters for water jacket seal assemblies

ER Collets(1)

Option
Consult factory for range of available ER collets

Note: Requires Rego-Fix electropolished collets for proper operation

Controller Options

OptionDescription
-Ndrive HPe Two-axis A3200 control system with Nview MMI and Ndrive HPe-IOPSO-DUALPSO-AUXPWR-MXH panel-mount digital networked drives; includes all motor power and feedback cabling
-Ndrive HLe Two-axis A3200 control system with Nview MMI and Ndrive HLe-IOPSO-DUALPSO-AUXPWR-MXH panel-mount digital networked drives; includes all motor power and feedback cabling
-Npaq Two-axis A3200 control system with Nview MMI and Npaq-DL4010-MXR2-DUALPSO-ESTOP1 19 inch rack-mount digital networked drive chassis; includes all motor power and feedback cabling

Note: See A3200 product documentation for additional information on controller and drives.