Motion Control

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.

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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.

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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.

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Undermount Slide

Accuride (Santa Fe Springs, CA) announced the 3135EC Eclipse Undermount Easy- Close slide. The slide offers improved full extension movement with a 100-pound load rating and 4.8 pounds of pull force. The Easy-Close action brings drawers to a smooth close while reducing the total envelope of the product. Fluid dampeners resist slam without adding bounce-back. The slide can be configured with multiple drawer-front adjustment features, enabling horizontal, vertical, and front-to-back adjustment. A lower spacer clip with plastic ball bearings provides additional lateral support, reducing drawer sagging and side-to-side movement.

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Pneumatic Gripper

Fabco-Air (Gainesville, FL) announced the FKHS Series 3 Jaw parallel motion pneumatic gripper for handling small parts in tight spaces. They are available in bore sizes of 25, 32, 40, 50, 63, and 80 mm. A magnetic piston is standard on all grippers. Mounting is via direct body (top and bottom) mounting holes.

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Positioning System

Piezoconcept (Lyon, France) offers the Hybrid System, an integrated positioning system for use with any standard inverted optical microscope. It combines a manual micrometer-driven, two-axis, linear motion stage with high-resolution, ultra-low-profile nanopositioners providing up to 300 μm in every direction. A stable blocking force into each axis of the coarse positioning stage provides a secure base for nanopositioning. The system provides sub-nanometer resolution under closed loop control. Typical applications include high-resolution microscopy, particle tracking, and confocal microscopy. Upon request, an additional breadboard can be provided.

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Motor Drive

The RoadRunner SoftStep R213S microstepping motor drive from Testra Corp. (Tempe, AZ) features an onboard processor that treats the input steps as small vector moves, and chains them together with 250 or 256 microsteps per regular motor step with controlled accelerations. Dual chopper stabilized current comparators and auto-calibration eliminate communication discontinuities and maintain sine wave drive, reducing motor noise. The drives are equipped with jumpers installed with a divisor setting of 10 to make them Geckodrive compatible; jumpers can be reconfigured by the user. The drive microsteps in either 250 or 256 increments per step for DS (double-step) settings, 1 (full-step), 2 (half-step), 4, 8, 16, 32, 64, 128, and 256. The drive measures 2.5 × 2.5 × 0.825", input power is 20VDC – 80VDC, and current drive is 1 to 7 amps. Other features include resistor programmable current, opto-isolated inputs, and step frequency to 5 Mhz. Available options include custom waveforms to match individual motor characteristics, and user-programmable waveform.

For Free Info Visit http://info.hotims.com/61062-301

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Positioners

ALM Positioners (Rock Island, IL) released the Model MHL1P 10,000-pound-capacity single-column positioner that features 68.5" vertical travel in 35 seconds; a pendant-controlled, 4-HP, column-mounted hydraulic unit for lifting and lowering; solenoid- controlled safety pawls; 360-degree CW or CCW rotation; a rotator with 267,200 inch-pounds of torque; and a 48" base. It is offered as a dual-motor rotator and variable frequency drive (variable speed rotation of .75 to 2.3 RPM), as well as a single rotator.

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Linear Slide

Haydon Kerk Motion Solutions (Waterbury, CT) introduced the WGS Wide Guide Screw linear slide that utilizes a screw-driven carriage. Length and speed are not limited by critical screw speed, allowing high RPM, linear speed, and long stroke lengths. The slide offers stroke options of 6, 12, and 18" in three leads (0.1, 0.5, and 1.0"). Each slide comes with a size 17 and a size 23 motor mount. The slide utilizes sliding plane bearings on a low-profile aluminum guide rail. The lead-screw is made of stainless steel, and all moving surfaces include Kerkite® polymers running on a Kerkote® TFE coating. The slides come with wear-compensating, anti-backlash-driven carriages. Additional driven or passive carriages can be added, along with application-specific customization. Linear guides without the drive screw also are available.

For Free Info Visit http://info.hotims.com/61062-302

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