New nano-positioning, high precision, linear, single axis stages

New nano-positioning, high precision, linear, single axis stages

The SCR Nano-positioning Series from Micromech offers the accuracy of piezo driven stages with the speed and performance of servo stages. Through the use of complex motion profiles, the SCR series produces extremely accurate results with no loss in stability.

Nippon SCRAs in all Linear Shaft Motor applications, a non-critical air gap produces an environment that is void of any variations in force. With a simple, lightweight, compact shaft-type linear motor comprised of only a magnet and a coil, large drive force is gained with an efficient and short coil length, allowing for high speed and high precision applications. Because there is no friction, there is no sound or dust, making the motor maintenance-free. These stages also include an integrated cross-roller guide. All the SCR stages can be supplied as an X-Y stage to insure true orthogonal orientation between the two axes.

The SCR-050 stage utilises a linear shaft motor making it a compact, precise solution for small-scale stage applications. The stage itself contains the cables within a stationary base and like all SCR stages uses a moving magnet design. With a built-in optical linear encoder that provides sub-micron resolution, the SCR-050 is a complete compact stage solution for small-scale precision movement. Each SCR stage requires a servo driver to operate the stage. Any two SCR stages will bolt directly together forming a very stiff, compact X-Y assembly standard, without the need for adapter plates.

There are two models with travel/strokes of 20 or 40mm, accuracy 2mm, maximum acceleration 20 or 8m/s2, maximum velocity  0.6 or 0.5m/s and a load capacity of 10kg.

The SCR-075 stage is a complete single axis stage which integrates a slide guide, encoder and linear shaft motor. It offers a wide range of advantages for applications requiring high performance and accuracy. The linear motor allows for higher resolution, speed, and continuous force than the standard stepper or piezo servomotor.
The SCR-075 also uses a linear shaft motor however the coil windings can be customised to a double, triple, or quadruple winding.

There are three models in this range with a travel/strokes of, 50, 100 or 150mm, accuracy of 3, 5 or 7mm, maximum acceleration of 25, 20 or 15m/s2   , maximum velocity of 1.1, 1.4 or 1.5 m/s and a load capacity of 45.5kg.

With six different travel/stroke lengths and three different motor windings the SCR-100 stage is probably the most versatile of the SCR line up. Like its relatives, the SCR-100 integrates a slide guide, encoder, and a linear shaft motor. A wide range of options
allows for a better match for stage applications needing sub-micron resolution that is free from motion errors.

The travel/strokes range from 50, 100, 150, 200, 250 up to 300mm, accuracy 3, 5, 7, 9, 11, and 12 mm, a maximum acceleration of 2, 17, 12, 10, 8, 7 and 6m/s2 maximum velocity of 0.9, 1, 1.2, 1.2, 1.3 and 1.3m/s and a load capacity of 45.5kg.

The largest of the SCR stages, the SCR-150 stage has stroke lengths up to 300 mm while maintaining the high performance and accuracy of the smaller SCR stages. Like the other three stages, the SCR 150 is a complete single axis stage which integrates a slide guide, encoder, and a Linear Shaft Motor. It offers a wide range of advantages for applications requiring high performance and accuracy.

The travel/strokes are 100, 150, 200, 250 and 300mm, accuracy 5, 7, 9, 11 and 12mm, maximum acceleration 17, 13, 11, 9 and 8 m/s2 maximum velocity 1.3, 1.3, 1.4, 1.5 and1.5 m/s and a load capacity of 45.5kg.

If you want more information about these exciting products then contact Stirling Morley on 01376 333333 or stirling@micromech.co.uk

Special offer – CNC Machine MiniMod

Special offer – CNC Machine MiniMod

This is a CNC Desk-Top machine with a fixed portal and uses a stepper controller

There are four models with traverse paths of:

X = 300 mm,
Y = 200 / 400 / 600 / 800 mm
Z = 150 mm

These machines have a great cost/performance ratio for the following applications:

  • Imprinting and engraving
  • De-burring and polishing
  • Soldering and welding
  • Assembling and  mounting
  • Metering and fastening
  • Bonding and casting
  • Measuring and testing
  • Scanning and scaling 
    Minimod

MinimodThe MiniMod is especially suitable for the following applications:

  • Optics
  • Jewellery  
  • Engraving
  • Goldsmiths

 

Yaskawa sets up shop in Milton Keynes

Yaskawa sets up shop in Milton Keynes

Yaskawa Electric has set up a sales office in Milton Keynes to strengthen its activities in the UK and Irish markets, following the ending of its joint venture with Omron. A seven-strong team will support local OEMs and other users, providing a technical advisory service.

Yaskawa is also establishing a network of distribution partners to handle its products in the UK. There will probably be four (including Crompton Controls) for its drives products, and two more for its motion portfolio.

The Milton Keynes team will work with customers to take industrial projects from planning and scheduling, to implementing and commissioning.

Eye Spyraflo, a look at bearing applications…Episode 25: Special bearings for bikes for children with special needs

Eye Spyraflo, a look at bearing applications
Episode 25: Special bearings for bikes for children with special needs

Eye Spyraflo, a look at bearing applications
Episode 25: Special bearings for bikes for children with special needs

For children who cannot pedal a conventional bicycle a US company decided to develop a cycle they named the ‘Step’n Go’ but to do this had to overcome some engineering problems. Unlike a traditional bicycle this innovative three-wheeled bike had to eliminate the difficult circular pedalling motion, replacing it with a more natural up and down stepping action.

The answer was to change this to more like walking than cycling to give the forward motion, but of course a bike is not just pedals, it is also handlebars, steering, and control. The engineers realised they had to change their thinking and let the riders design the cycles. The designers also involved physical therapists and one suggested tilting the steering column back towards the rider so that one of her little girls with spina bifida, would be able to fit the cycle.

Spyraflo Bearings

But the original nylon bearing was not up to the job. The design of the steering column used a flange nylon bearing, located on a pin welded to the front axle. This caused problems for the nylon bearing, which had no self-aligning feature and would just fracture when the steering column was tilted.

The engineers searched for suitable bearings and Spyraflo provided the answer. They requested samples of the oil-impregnated bronze self-clinching, self-aligning bearing that offers a ±5° self-alignment capability. The oil-impregnated bronze bearing was chosen for its rugged construction, as well as the self-lubricating feature as this would also keep the carbon steel alignment pin from corroding.

With the Spyraflo bearing in place, the steering column can be positioned where the rider needs the handlebars, without inhibiting rotation of the column. Most children probably will not use the full 5° self-aligning feature but in tests it was used to its maximum and the steering column still worked flawlessly.

The engineers also had the added benefit in terms of cost saving and simplicity of assembly due to the patented self-clinching feature of the Spyraflo bearing. As the bearing is pressed into the bore, the tapered sides force material up into an undercut below the flange. The serration’s act as multiple cutting edges that increase the flow of material into the undercut. When finished, the flange of the bearing is flush with the surface, and becomes an integral part of the assembly.

Micromech is the UK and Eire distributor of these clever bearings, if you would like more information about them, then contact Stirling Morley on 01376 333333 or stirling@micromech.co.uk

‘Affordable Automation’

Yaskawa and Micromech, a moving partnership

Yaskawa and Micromech, a moving partnership

For the latest in technology of speed control and positioning products, Yaskawa are probably the best in the world

Yaskawa F20-F35Just released by YASKAWA is the F20-F35 high-speed pick and place solution providing a real alternative to mechanical cam-controlled handling systems. The new linear drive based handling system combines absolute precision with maximum dynamics and long service life. The system picks up, moves and precisely deposits weights of up to 1.5kg at cyberspeed.

The new F20-F35 twin axis module requires no mechanical elements for load transmission. Its linear bearings are designed for an extremely long service life, ensuring high availability and reliability, and the system’s linear motors feature excellent energy efficiency and extremely low ongoing energy costs. The system is free of backlash permitting highly precise positioning. Its warp resistant structure allows for extremely dynamic moves with shortest positioning times, with high positioning stability and outstanding machine performance.

The systems range is 300mm horizontal and 100mm vertical, the vertical axis has a
pneumatic brake. The payload is 100N for the horizontal and 15N for the vertical axis. Cycle time is < 0.90s and the repeatability ± 0.02mm.

The new handling system is supplied as an integrated, ready-to-install solution. All contained linear motors, servo amplifiers and machine controllers with IEC 61131 programming are designed and manufactured by YASKAWA. All components are carefully matched, allowing for the creation of highly compact solutions resulting in a maximum performance.

The twin axis module is particularly suitable for highly dynamic applications that also require good repeatability. Typical applications are industrial handling and assembly, measurement and testing, medical engineering pick-and-place systems in electronics and applications in the packaging and food industries.

Micromech is the UK distributor and systems integrator for Yaskawa motion products, for more information contact Stirling on 01376 333333 or stirling@micromech.co.uk

‘Affordable Automation’

New high precision single axis stages with built in linear motor

New high precision single axis stages with built in linear motor

Nippon SLPThe SLP series from Micromech is a high performance, linear, single axis stage that is high thrust, high speed, high responsiveness and high precision. The stages have long strokes, are of simple design, easy to install and because they are a non-contact drive means low noise, a long life span and maintenance free.

A high-precision stage for industrial applications, the SLP series of stages offer superior technology that is unmatched in the industry. As an all-inclusive stage, the SLP stage provides integrated shaft support within the housing and simplifies the transition from conventional ball-screw systems. Because this stage system features a lightweight, compact linear shaft drive, the SLP is therefore a low profile, high-precision product. The built-in shaft motor is a maintenance free device and also eliminates sound and dust production. The stages feature the smallest dead zone of any similar stage system available on the market today. In addition, there are no stages on the current market that match the SLP series’ force-to-volume ratio making it an outstanding solution for those with space limitations.

The first in the series is the SL P15 which has a HEIDENHAIN LIDA279 1μm encoder, the continuous force is 17N and peak force 90N. The maximum acceleration is 3.5G and maximum velocity 3m/s with a repeatability of 0.0005mm, the max load is 5kg horizontal and 3kg wall. The strokes are for the single forcer 100 to 1300 mm in 100 lengths and 100 to 1200 for the double forcer.

Next in the series with the same encoder is the SLP25 but this has a continuous force of 80N and peak force of 340N.  Acceleration, velocity and repeatability are also the same but the horizontal load is up to a max of 30kg and wall 15kg. The
single and the double forcer strokes go from 200 to1200mm in 100mm lengths.

The third in the series is the SLP35, which also has the Heidenhain encoder, same acceleration, velocity and repeatability as the other stages. The continuous force of this range is 185N and peak force 970N, the horizontal load is a max of60kg and wall load 30kg. The single forcer strokes are 300 to1200mm and the double 300 t0 900mm both again in 100mm lengths.

If you would like more information about these excellent stages contact Stirling on 01376 333333 or stirling@micromech.co.uk

‘Affordable Automation’