Motion Control

Precision Ball Screws

Thomson Industries (Radford, VA) has introduced miniature metric precision ball screws in three interface styles: flanged, threaded, and rounded. The FSI metric ball screws are flanged, and the RSI style is rounded. Both feature a multi-liner ball return system that provides smooth operation and increased load capacity. The miniature ball screws are available in a range of standardized diameters from Ø6 mm – Ø14 mm. Flexible ball nut mounting configurations and rapid prototyping are options for the ball screws.

Posted in: Products, Manufacturing & Prototyping, Motion Control

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Servo Drives

The MR-J4-TM multi-network servo drives from Mitsubishi Electric Automation (Vernon Hills, IL) are available with Ether Net/IP™ and EtherCAT® interfaces. The drives feature dual 100BASE-TX Ethernet ports in line, tree, and star topologies; One-Touch Auto-Tuning; 2.5 kHz speed frequency response for short settling time; high-resolution 4,194,304 pulse/revolution absolute encoders; and Advanced Vibration Suppression Control II for vibration suppression on both the load and the machine base. The drives also come with add-on instructions for EtherNet/IP networks using ControlLogix® or Compact - Logix® controllers.

Posted in: Products, Manufacturing & Prototyping, Motors & Drives

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Rotary Valve

RotaVal Ltd. (Wiltshire, UK) introduced a heavy-duty rotary valve for use where solids handled and operating conditions combine to cause abrasive erosion within the valve. It has on-site component replacement. The valves are used in discharging materials such as cement, PFA, granite dust, silica sand, and mineral powders under adverse pressure conditions. Standard valves are manufactured in cast iron, SG iron, Ni-hard, and carbon steel. The replaceable body liner can be hard chromed or ceramic coated. Rotor shaft sealing options include various types of gland packing, mechanical seals, and air or grease purge.

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Voice Coil Actuator

The LAH15-19-000A linear voice coil actuator from BEI Kimco (Vista, CA) provides low hysteresis/ low friction with bi-directional position control. It is suited for applications where low friction and high force accuracy are needed. The low-friction design features a patent-pending symmetrical flex circuit that prevents friction caused by movement. A solid brass ball cage with captured steel balls also reduces friction. The actuator offers a hysteresis of 10 mN. Other features include a peak force of 4.7 N, a total stroke of 7.4 mm, and a compact size of 38 mm in diameter by 48.3 mm in length.

Posted in: Products, Motion Control

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Compact Robot

ABB Robotics (Auburn Hills, MI) introduced the IRB 1660ID compact robot for arc welding and machine tending applications. It features a DressPack design that allows users to program and simulate predictable cable movements, a rigid upper arm with a reach of 1.55 m, and a payload of 6 kg. It is able to accommodate heavier weld torches, and provides wire feeding control near the arc. TrueMove™ technology provides 0.05-mm path repeatability. The integrated DressPack allows the robot to move at maximum acceleration and speed for machine tending applications. The risk of collision in confined spaces is also eliminated, and the 1,390° working range of axes 4, 5, and 6 enables agility in CNC machines.

Posted in: Products, Manufacturing & Prototyping, Motion Control

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Block Spindle

Suhner Industrial Products Corp. Automation Division (Rome, GA) introduced the BEX8 high-speed machining block spindle capable of maintaining rigidity and precision at operations up to 25,000 rpm. The spindle weighs 33 lbs. and can be mounted directly onto robotic arms for fully automated machining operations in automotive, appliance, off-highway, and other industries. The standard motor supplied is either 0.37kW or 0.75kW, and the standard toolholder supplied is ER20.

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Rotary Tables

Koma Precision (East Windsor, CT) offers Tsudakoma RDS Series direct drive rotary tables that use a proprietary direct drive motor system that enables the tables to achieve high speed and acceleration with no backlash. The compact, single-axis, 150-rpm tables feature indexing accuracy of ±10 arc seconds and a pneumatic braking system. Various options such as rotary joints, chucks, tailstocks, support spindles, and faceplates are available. The tables can be integrated with machine tools that have Fanuc or Mitsubishi controls. The tables also feature a low-profile build for mass production and high-speed indexing operations in the automotive, medical, and computer/electronic manufacturing industries.

Posted in: Products, Manufacturing & Prototyping, Motion Control

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