Motion Control Application- A wasp shows the way!

Maxon motion control application - Wasp Stinger

What do wasps have to do with brain surgery?  At first glance, not a whole lot. However, one species serves as the model for an innovative brain surgery needle that is being developed by a team of researchers from England.

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Maxon motion control application - Brain

Fall River, MA — Motion Control Components Application – In tumor treatment, neurosurgeons today use a thin, rigid needle to inject medication into the affected brain tissue. This carries a relatively high risk of injuring healthy tissue, because a rigid needle only allows the surgeon to enter a certain region of the brain, following a straight path. The ideal solution would be a flexible operating tool.

Maxon motion control application - Brain

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

This is where the London Imperial College comes in. In recent years, a team led by Prof. Rodriguez y Baena worked on developing a flexible robotic needle capable of reaching the deeper regions of the brain, while simultaneously avoiding especially sensitive areas. The young researchers sought to imitate the special mechanism employed by female wood wasps that use their thin but very strong drill-like stings to lay eggs inside the wood of trees.

Under the project name STING (Soft Tissue Intervention and Neurosurgical Guide), the scientists developed a prototype consisting of four segments with an overall diameter of 2.5 millimeters, held together by a puzzle-like interlocking mechanism. maxon drives provide the back-and-forth motion of the segments.

“The whole range”

Dr. Secoli is a member of the Mechatronics in Medicine Lab at the Imperial College. He selected the brushless maxon EC20 flat motor with a GP22 planetary gearhead for the application. An EPOS 24/2 positioning controller provides exact positioning. “Easy access to the API (Application Programming Interface) was the major key criterion of selection. On top of that, for fast-prototype system, maxon is the only manufacturer that offers the whole range of products: motor, gearhead, controller” says Dr. Secoli.

Maxon motion control application - Brain

Maxon motion control application - Brain

In early 2016, the team received a grant of 8.3 million euros from the European Union within the funding scheme Horizon2020. The new project codename EDEN2020 (Enhanced Delivery Ecosystem for Neurosurgery www.eden2020.eu), aims to set a new standard in the field of neurosurgical diagnostics and therapy by 2020.

For additional information on the components selected for this critically important project GO TO: https://www.maxonmotor.com/maxon/view/application/brain-surgery-needle-AB

Maxon motion control application - Brain

Comprehensive documentation and software are included with every delivery, and are also available for you to download from our website at www.maxonmotor.com.

Motion Control – Arc Segment and Large Diameter Motors Available from Electromate!

Applimotion Low-Profile DDR Motors for Arc Segment and Large Diameter Motion Available from Electromate!

Electromate Motion Control Motor Arc Segments and large diameter motors

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Vaughan, Ontario, Canada — Motion Control –The Infinity Series enables OEMs to move light payloads in smooth and accurate arc-shaped and full 360-degree rotary motion profiles. Ultra-thin arc-shaped motor segments can be used individually or interconnected to create exact partial arc segment motion or full 360-degree rotary motion. Modular construction allows for virtually unlimited diameter and large through holes. This level of flexibility is not possible with conventional motor designs.

The Infinity Series arc-shaped motors offer the right combination of torque, speed and smooth motion in flexible form factors and are ideal for low-profile, lightweight gimbals, broadband communication antennas, medical scanning, diagnostic imaging, inspection and metrology equipment.

Electromate Motion Control Motor Arc Segments

Ultra-thin arc-shaped motor segments can be used individually or interconnected to create exact partial arc segment motion or full 360-degree rotary motion. Modular construction allows for virtually unlimited diameter and large through holes. This level of flexibility is not possible with conventional motor designs.

 

Configuration Axial arc-segment forcers
Continuous Force 0.65 to 63 Nm
Peak Torque 1.95 to 190 Nm
Outer Diameter 112 to 765 mm
Height (Axial Length) 20 to 40 mm
Peak Current 3.4 to 6.6 amps

Direct drive technology eliminates the size, cost and positional errors associated with redundant bearings and gearing.

All models are compatible with a wide range of controllers and drives. Windings and form factors can be customized to meet application requirements.

CLICK HEREClick on the following link for more information on the Infinity arc-shaped motors from Applimotion.

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak atsales@electromate.com or visit Electromate at: www.electromate.com

 

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Motion Control – Miniature Voice Coil Motor With Large Air Gap Available from Moticont!

Motion Control Components - Moticont Large Air Gap Miniature Voice Coil Motor

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Van Nuys, CA – Motion Control Components – The miniature Linear Voice Coil Motor, LVCM-022-013-02, from Moticont features 5.9 oz. (1.6 N) continuous force and 18.7 oz. (5.2 N) peak force in a compact 0.875 in. (22.2 mm) diameter by 0.50 in. (12.7 mm) long. These clean, quiet, efficient, low inertia, high acceleration, high speed motors have zero cogging and feature high accuracy and high repeatability to less than1 μm (0.00004 in.) when operated in a closed loop configuration as a DC servo motor.

This motor is designed with a larger air gap of 0.059 in (1.5 mm). The larger air gap allows the motor to be used for: vibration, noise cancelation, photonics, gimbals, medical devices, semiconductor handling, SMT machines, assembly, wafer handling, optical focusing, dynamic vibration absorption, scanners and laser beam steering and filtering where excessive side play or tilt is required.

The miniature LVCM-022-013-02 linear voice coil motor has a stroke length of 0.25 in (6.4 mm) and can be easily incorporated in to new or existing applications using 4-40 UNC-2B mounting holes on each end of the motor. Other smaller and larger models as well as custom designs are available. The LVCM-022-013-02 linear voice coil motor can be ordered as a complete plug-and-play system including an encoder and controller.

About Moticont – Moticont is a manufacturer of motion control products. Their product line includes voice coil motors, three phase brushless motors and positioning stages and slides.

Moticont is committed to exceeding their customers’ quality expectations and industry standards throughout the design, manufacturing, service and technical support phases. Our modern manufacturing facility, highly controlled processes, committed staff, and extensive testing complement our product design strengths. This enables us to supply our clients with specialized small orders to high volume just-in-time deliveries.

We offer an extensive line of standard products ready to be shipped immediately from stock, and when standard products are not quite right for an application, highly trained design engineers are always available to develop custom motion control products to fit the specific needs or our customers.

For additional information contact Moticont, “A Motion Company” at 6901 Woodley Avenue, Van Nuys, CA 91406, USA; Tel: (888) 785-1804, Fax: (818) 785-5713, E-Mail: moticont@moticont.com or visit the website at http://www.moticont.com

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Motion Control Components – Ultra Thrust Ball Screws from Steinmeyer!

Motion Control Components - Steinmeyer Ultra Thrust Ball Screws

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BURLINGTON, MA –Motion Control Components – In recent years, ball screws have been looked at more and more favorably as replacements for hydraulics. They offer higher efficiency and speed, and can be controlled more precisely with servo loops. And who wants to deal with the unavoidable maintenance and disposal hassle of hydraulics?

Steinmeyer has been supporting this market shift with its line of Ultra Thrust ball screws. These screws utilize larger balls to support much greater load capacities. More recently, we have introduced innovations in through-the-nut return systems to push performance even higher.

The Ultra Thrust line began with our 50×20 mm nut using 15 mm balls. Our standard nut of that size, with 9.5 mm balls, was rated at a dynamic capacity of about 120 kN (12 tons). But the Ultra Thrust version exceeded twice the capacity, reaching 262 kN. We then expanded the line to include larger nuts. Most of our Ultra Thrust screws in the field are sized at 80×20 or 63×20.

More recently we extended the line with a 100×25 mm nut, using 19 mm balls. These screws have proved themselves in the most demanding applications of injection molding.

Beyond increasing the ball diameter, Steinmeyer has designed new return systems to optimize the load capacity. Our latest innovation uses multiple through-the-nut return paths, shown in the schematic below. With this system, the screw exceeds 1,400 kN of dynamic capacity!

Learn more: https://drive.steinmeyer.com/products/ultra-thrust-ball-screws/

About Steinmeyer

Steinmeyer is the world’s longest continuously-operating manufacturer of commercial ball screws. In the realm of linear motion control, our company has become synonymous with precision, innovation, and exacting standards of quality.

Steinmeyer’s extensive product line is used widely in drive systems for industrial machines as well as precision positioning in optical instruments, medical devices, and other mechatronic applications. www.steinmeyer.com

For further information on Steinmeyer our extensive product portfolio, call 1-781-273-6220 or e-mail Rosmary Belt at rosmary.belt@steinmeyer.com or visit the Steinmeyer FMD group at: www.steinmeyer.com

 

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Motion Control – Maxon Motor Introduces The First Sterilizable Drive System!

Brushless DC motor, gearhead, and encoder from one single source

Maxon motion control Sterilizable Brushless Drive System

With the ENX EASY, maxon motor’s NEW ENX EASY is a sterilizable encoder for use with maxon’s brushless DC motors. This opens up a range of new possibilities in medical technology.

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Fall River, MA — Motion Control Components – This is the world’s first steam sterilizable encoder ENX EASY. It is available in an incremental (1024 counts) and absolute version (4096 steps), both designed for 1,000 autoclave cycles.

As of now, the ENX EASY can be combined with matching BLDC motors and planetary gearheads. The encoder can be integrated into the brushless drives ECX 13 and ECX 16 SPEED (up to 120,000 rpm and 104 W) without any increase in length. When the gearheads GPX 13 and GPX 16 SPEED (0.2 Nm max. continuous torque) are added to the combination, customers receive a fully sterilizable positioning system. This opens up an entire new range of possibilities in medical technology. The compact and robust design is ideal especially for power tools

Comprehensive documentation and software are included with every delivery, and are also available for you to download from our website at www.maxonmotor.com.

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Motion Control Application – Wearable Pumps for Medical Devices Count on Ball Screws from Steinmeyer!

Motion Control Application - Steinmeyer Ball Screws used in Medical Pumps

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BURLINGTON, MA –Motion Control Applications – Motion Control Components – There has been a tremendous amount of innovation lately in the design of medical devices and lab instruments. One of the critical aspects of the new products being developed is linear motion. And Steinmeyer is proud to be directly involved in providing drive solutions to our cutting-edge customers. We currently have several on-going applications involving wearable pumps driven by ball screws, and I wanted to share some of the specifics.

Implantable medical devices naturally place extreme requirements on size, materials, lifetime, and reliability. These constraints drive up cost and complexity. Incorporating all of this function into a single implantable is extremely challenging. Not only that, but servicing the pump requires major surgery!

One solution is to break down the system into two components—one implantable and one wearable. The implantable component handles minimal functionality and consists simply of a balloon. The wearable component enjoys much looser design requirements. In the projects we are working with, a wearable pump is used to drive compressed air through a catheter that passes into the body.

A wearable pump offers the advantages of being small, quiet, and very reliable. That is where precision ball screws come into play. Steinmeyer offers standard miniature screws in diameters 3 to 16 mm. The diameter typically required for this application ranges from 8 to 12 mm. Custom products can be developed as well for applications that need it. Steinmeyer ball screws also feature our proprietary super finishing process, called optiSLITE. This improves the surface quality of the shaft threads for reduced friction torque, quieter operation, and longer life.

About Steinmeyer

Steinmeyer is the world’s longest continuously-operating manufacturer of commercial ball screws. In the realm of linear motion control, our company has become synonymous with precision, innovation, and exacting standards of quality.

Steinmeyer’s extensive product line is used widely in drive systems for industrial machines as well as precision positioning in optical instruments, medical devices, and other mechatronic applications. www.steinmeyer.com

For further information on Steinmeyer our extensive product portfolio, call 1-781-273-6220 or e-mail Rosmary Belt at rosmary.belt@steinmeyer.com or visit the Steinmeyer FMD group at: www.steinmeyer.com

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Linear Motion Control – Voice Coil Actuators vs. Solenoids: What is the difference?

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The question of whether to use voice coil actuators or solenoids for small displacement motion control applications comes up often.  This article explains the key differences between each product and why you might choose one over the other for your applicationA non-commutated DC linear actuator, typically referred to as a voice coil, is capable of a displacement in excess of 5 inches.  In addition, voice coil actuators, can move bi-directionally, and has a constant force over the stroke and can be used for closed loop position and force applications.

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A solenoid can generate high forces at very short strokes, however it requires a spring return because they are operated unidirectional and the force output declines rapidly through the total displacement, and therefore are normally used only for short strokes, not typically longer than 0.5 in.  The typical application for a solenoid is the simple opening or closing of a switch or valve, and are not typically used for force or position control applications.

A voice coil generates a force based on an interaction of a current carrying conductor in a permanent magnetic field.

H2W-Voice Coil Illustration

A solenoid generates force based on an electromagnetic field that is created by a current carrying conductor.

H2W-Solenoid-Illustration

What is a Voice Coil Actuator?

Voice coil actuators or non-commutated DC linear actuators consist of a permanent magnetic field assembly (permanent magnets and ferrous steel) and a coil assembly.  The current flowing through the coil assembly interacts with the permanent magnetic field and generates a force vector perpendicular to the direction of the current.  The force vector can be reversed by changing the polarity of current flowing through the coil.

The force generated by the voice coil is proportional to the cross product of the current flowing through the coil and the magnetic flux in the permanent magnetic field, as dictated by Lorentz’ force equation.  Either the coil assembly or permanent magnetic field assembly can be used as the moving member in a voice coil actuator.

The force generated is relatively constant throughout the stroke of the actuator, with minor dips at the beginning and end of the travel length.

Voice coil actuators are typically used in focusing applications, oscillatory systems, mirror tilting, and miniature position control.

What is a Solenoid?

Solenoids consist of a coil that is contained in a ferrous steel housing and a movable steel slug or washer.  An electromagnetic field is generated by current being applied to the coil.  The magnetic field intensity determines the amount of force that can be generated by the solenoid.  When the power is turned off, the force drops to zero and the spring returns it to its extended position.

The forces are initially high, but as the stroke increases the force decreases.

Solenoids are typically used to open latches or open or close valves, and are either used to apply a holding or latching force.

Comparison

  Voice Coil Actuator Solenoid
Force Low to medium High
Stroke 5 inches maximum ¼ inch maximum
Constant Force Yes No
Reversible Yes No
Position/Force Control Yes No
Cost Moderate Low

Should I select a Voice Coil Actuator or a Solenoid?

If your application simply requires opening or closing a valve a solenoid might be an option, however they have limitations when it comes to force linearity and stroke length.

Due to the fact that voice coil actuators typically cost more than an off-the-shelf solenoid, many customers try and use a solenoid when a voice coil actuator is the more appropriate solution.  Some applications require a constant force throughout the travel length, and in these situations a solenoid is insufficient due to the diminished force through the travel, while a voice coil actuator provides constant force.  This is particularly important in oscillatory systems.  Another advantage that the voice coil provides is force control, without a feedback device, because the force output (at any position in the stroke) is directly proportional to the current input.

This type of actuation lends itself to generally a higher force density, thus achieving higher strokes and forces in a smaller package size to the solenoid counterparts.

H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail:info@h2wtech.com or visit the website at http://www.h2wtech.com

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Motion Control Component Catalogs – Search for a Specific Component by a Manufacturer or a Distributor

Linear Motion Control Components

– General Catalog from LM76

linear motion control components

To view the catalog Click Here

To go directly to the LM76 WebsiteClick Here

To return to your previous please use the back arrow

Go to http://catalogs-motioncontrol.com

Motion Control – Yaw, Tilt, Rotary Stages from Intellidrives!

Intellidrives Motion Control Component - Rotary Table

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Philadelphia, PA, — Motion Control Components and Systems – The integrated two-axes rotary assembly provides high-speed micro-machining capabilities for complex 3D part geometries and for general testing, purpose pointing, scanning and tracking applications for small optics, antennae and other sensors. The precision-aligned system allows accurate positioning on a hemispherical surface.

System is equipped with high performance rotary stages and offer excellent stiffness and load capacity making them suitable for a wide variety of applications and motorized with high torque NEMA 17 stepper motors.

Optionally, can be equipped with rotary encoders mounted to the back of the stepper motor to provide closed loop servo performance with IntelLiDrives ServoStep controllers.

Features:

  • Precision worm gear technology
  • Positioning accuracy 30 arc-sec
  • Repeatability 10 arc-sec
  • Max speed 60 rpm
  • Yaw rotation 360 deg
  • Tilt rotation +/- 95 deg
  • Load 5 Kg

tilt

(A axis)

yaw

(B axis)

mechanism

geared rotary stage

geared rotary srage

max speed

30rpm

60 rpm

rotation

320°

n*360°

accuracy

 30 arc-sec

 30 arc-sec

repeatability

 10 arc-sec

run-outs

20 microns

load weight

 3 Kg

Intellidrives Motion Control Component - Rotary Table

 

FOR ADDITIONAL INFORMATION – CLICK HERE

About IntelLiDrives —

IntelLiDrives, Inc. manufactures linear actuators, XY tables and rotary tables for the industry, government, science and research institutions around the world. Our precision rotary actuators, XY stages and linear actuators are used in the applications in medical devices, life sciences, semiconductor and electronic assembly manufacturing, data storage, laser processing, military/aerospace, photonics, automotive and test assembly, research and development and other industries requiring high precision and throughput motion control solutions.

For further information on this new product or others in our extensive product portfolio, call 1-215-728-6804 or e-mail Intellidrives at sales@intellidrives.com.com or go Intellidrive – Contact Us at: www.intellidrives.com/contact-us

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Integrated 400Watt Servo Motor with 12-48VDC Battery Supply Voltage Available from Electromate!

Integrated 400Watt Servo Motor with 12-48VDC Battery Supply Voltage Available from Electromate!

Electromate offers JVL's MAC402 Motor

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Vaughan, Ontario, Canada — Motion Control Components — Designed for battery powered and low voltage applications the MAC402 is now available from Electromate The MAC402 is the VDC version of the popular MAC400 400W integrated servo motor. The supply range for the MAC402 is from 12VDC up to 48VDC, and full power of 400W (RMS) up to 1200W (peak) can be reached with 24 to 48VDC. This powerful, compact motor measures just 191mm (7.52 in.) x 60mm (2.36 in) x 114mm (4.49 in.) Applications include but are not limited to: Remotely operated robots, robotic vehicles, portable equipment, tracking devices, antenna mounts, and positioning devices.

MAC402 – The complete 400W solution for medium power ratings with battery supply 12-48VDC.

Peak power up to 1200W.

Choose between models with or without brakes.

IP55 standard. IP66 optional.

Wireless, Industrial Ethernet Connectivity or PLC build in.

JVL offers a 400W continuous (1200W peak) integrated servo motor in the supply range of 24 – 48VDC operating at 0 to 3000 RPM. In many applications it is not necessary to choose a 750W or larger motor as the 400W (1200W peak) motor will be sufficient, thereby reducing cost and saving space. MAC402 options include: Brake, absolute multi turn encoder, and planetary & cycloidal gearheads.

Electromate offers JVL's MAC402 Battery Powered Motor

A wide selection of communication modules is available for MAC402 motors including: Basic modules for Pulse-Direction (or analog input) or fieldbus modules including Profibus, Devicenet and CANopen, or programmable modules with easy connections to local sensors make integration into new and existing applications easy. Moreover, a wide variety of industrial Ethernet options are available: EtherCAT, EtherNet/IP, Profinet, Powerlink, Modbus TCP and Sercos III. With the VDC supply option the advantages of the MAC400 VAC servos have been expanded to include applications for battery and low voltage operation, from 12 to 48 VDC. With wireless options like WLAN/Wifi, Zigbee or Bluetooth, the MAC402 MAC motor® can run completely wireless.

New features:

  • Absolute multiturn encoder without battery
  • Real-time industrial Ethernet: Profinet, Ethernet/IP, MODBUS TCP, EtherCAT, Powerlink and SercosIII2 RS422 channels for encoder in/output and SSI encoder etc.6 I/O for capture of position, interrupt, counters, enable, timer and PLC functions

Expansion module you can choose between:

  • Basic Modules
  • Programmable Modules
  • Field Bus Modules
  • High Speed Multi-Axis Modules
  • Wireless Modules

A big advantage of using an integrated MAC motor® is that there is no need for a separate servo driver/controller. The advantages are: Space savings in the control cabinet, eliminating expensive motor and encoder cables, RFI/EFI noise is minimized due to internal cabling, and connection errors between driver and motor are eliminated. Additionally, service is much easier as the motor and controller are replaced as a single integrated unit minimizing downtime and maximizing production.

CLICK HERE to view more information on the Integrated Servo Motors from JVL Industri Elektronik.

For further information on this new product or others in our extensive product portfolio, call 1-877-SERVO99 (737-8699) or e-mail Warren Osak at sales@electromate.com or visit Electromate at: www.electromate.com

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