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Gear Reducer

The Able VRB Gear Reducer from Shimpo Drives is available from Servo2Go.com (Greenville, DE), and is suited for packaging machinery, medical equipment, and assembly cell automation. The standard mounting is a through-bolt style. The maximum output torque peaks at 2,300 in-lbs. It provides high-precision backlash rating of

Posted in: Products, Motion Control

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Robotic Accuracy Improves Aerospace Manufacturing

Where accuracy is concerned, robots have traditionally relied on repeatability. In the past, robotic accuracy has not been developed to a level of maturity acceptable to standard production processes. Critical aerospace manufacturing techniques such as fastening and drilling were historically not held to tight tolerances. Typical tolerances for airframe assembly fastening were in the +0.030" range. The standard is set by the positional requirement for drilling of fastener holes, which is a key target application for robotics in manufacturing.

Posted in: Features, Motion Control, Articles

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Linear Stage Brings Speed and Precision to Semiconductor Inspection

With some of the most demanding quality control regimens of any industry, semiconductor manufacturers use a variety of sophisticated metrology instruments to inspect wafers at each production step. All of these instruments have something in common: They simply will not function without precision motion stages.

Posted in: Semiconductors & ICs, Applications, Motion Control, Application Briefs

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Rotary Stroke Bearings

A line of rotary stroke bearings is available from Mahr Federal (Providence, RI). Suitable for applications where linear, rotary, and combined movements are required, MarMotion high-precision linear or rotary stroke bearings are frequently specified for high-precision applications such as machine tool spindles and pick-and-place assembly robots used in semiconductor manufacture. The bearings are used in measurement transducers, positioning units, centering and tilting tables, and in other modules that have an influence on the measuring result. They exhibit virtually no backlash, stick slip, or wear.

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Linear Rails

Haydon Kerk Motion Solutions, a brand of AMETEK Precision Motion Control (Waterbury, CT), has introduced the BGS06 BGS (Ball Guide Screw) linear rail system utilizing the popular size 17 single-stack or double-stack stepper motor linear actuator. Depending on static, dynamic, and moment load requirements, the user can choose among three BGS frame sizes: the BGS04, BGS06, and BGS08. All frame sizes are designed to position heavy loads and maintain repeatability and accuracy, while withstanding significant cantilevered loading.

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Motion Program Software

CADFusion software from Aerotech (Pittsburgh, PA) bridges the gap between part drawings and motion control. Users import a vector-based DXF drawing into the software environment to see the resulting tool path graphically on CADFusion’s canvas. Part optimization is performed with shape re-ordering, feature scaling, and rotational/translational features. Overall process management, including local and global feed-rate control and lead in/out moves, can be automatically configured in advance so that every import file produces a consistent motion control program.

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Linear Actuators

The MSR Series of five linear actuators from Techno-Omil (New Hyde Park, NY) includes configurations such as cross roller guides, adjustable position, shock absorbers, guide bushings, and external cylinder. The actuators feature operating pressures from 0.2 to 0.88 MPa. The housings are made of high-tensile hard-coated aluminum alloy, hard anodized, and are maintenance-free for the first 2 million cycles. Their speed is from 0.5 m/s to 0.7 m/s, and stroke ranges are from 10 mm to 50 mm for the smallest unit, to 30 to 125 mm for the largest.

Posted in: Products, Motion Control

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