Motion Control

Automated Measurement Cell

Hexagon Manufacturing Intelligence (North Kingstown, RI) announced the 360 Flexible Measurement Cell, an automated measurement work cell suited for automotive and aerospace structure applications including powertrain and closure panel fabrication. The cell is built on commercial-off-the-shelf (COTS) work cell systems integrated with the company’s measurement solutions. The cell combines external devices, products, processes, and systems in a COTS format to enable them to be easily customized. The cell is scalable, portable, and modular, and is offered in three configurations: in-line, near-line, or off-line. Solutions are scalable as required by specific part size and measurement tasks.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Accelerometers

The Model 356A43, 356A44, and 356A45A miniature triaxial ICP® accelerometers were introduced by PCB Piezotronics (Depew, NY). They measure 0.4 × 0.4 × 0.75", weigh 4.2 grams, and are TEDS IEEE 1451.4 enabled. The TEDS feature self-identifies the accelerometer and describes type, operation, and attributes. Data contained in the TEDS programming includes manufacturer, model number, serial number, calibration date, sensitivity, frequency response, and measurement ID. Models are available with three sensitivities: 10 mV/g, 50 mV/g, or 100 mV/g. They are packaged in a hermetically sealed titanium cube. Common applications include modal and structural analysis, automotive NVH, and package testing.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Weldable Couplings and Collars

A line of weldable shaft collars, couplings, and mounts is available from Stafford Manufacturing Corp. (North Reading, MA). The components are made from ANSI 1018 steel and stainless steel to allow users to modify parts and create assemblies without fasteners. Typical modifications include brackets, cams, lever arms, mounts, pins, and rods. They are suited for the design and repair of special machinery, conveyors, packaging systems, and racks. The weldable shaft collars are available in one- and two-pieced, and hinged styles. Flange mounts are offered in ¼" to 6" bore sizes, and weldable shaft couplings are available in ¼" to 2" bore sizes. Smooth-, hex-, and square-bores for shafts, pipe, and tube can be supplied.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Linear Guide Kit

To simplify product selection of self-lubricating linear guides, igus (East Providence, RI) has developed a modular construction kit for belt-driven DryLin ZLW linear axes. The ZLW toolkit enables users to customize their solutions, including rail widths, system length, etc., even for small installation spaces. Cross beams, rails, and/or carriages are available in either aluminum or stainless steel to suit a wider range of application requirements. The ZLW system enables loads up to 165 lbf. to be lifted with stroke lengths of up to 3 meters (118"). Wide drive belts can also permit speeds of more than 5 m/s (16 ft./s), depending on the load. Underwater applications are possible via a special toothed belt.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Actuators

Curtiss-Wright Sensors & Controls Division (Gilbert, AZ) announced Exlar® brand FTX Series actuators. The high-force electric rod style actuators replace hydraulics in highforce, high-duty-cycle applications in harsh environments. Based on planetary roller screw technology, the actuators offer a compact form factor. With continuous force rating to 178 kN (40,000 lbf), speed to 875 mm/sec (34 in/sec), and stroke lengths from 150 mm (6 inches) to 900 mm (3 feet), the actuators can be applied across a range of linear motion applications.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

Automation Cables

Molex, LLC (Lisle, IL) offers Flamar industrial automation cables for signal and control equipment and servomotors. The cables are available in multiple jacket materials (PVC, WSOR, PUR, TPE). The standard cables range from 26 AWG to 10 AWG for applications in food and beverage, material handling, automotive lines, and other manufacturing operations. The cables are rated for temperature ranges down to -40 °C (-40 °F) and up to 105 °C (221 °F). They are compatible with all standard industrial connectors, including RJ45, the Brad® range of circular connectors (M8, M12, M23) for servomotors, and mPm® DIN valve and Molex Heavy Duty connectors.

Posted in: Products, Manufacturing & Prototyping, Motion Control
Read More >>

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
Read More >>

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
Read More >>

Advantages of Servo Motor and Direct Drive Technology

For many years, stepper motors have been the most popular type of electric motor designed into instrumentation for a wide variety of reasons. Stepper motors have become increasingly commoditized, and can be sourced easily. In addition, the growing “maker movement” has simultaneously made them more popular and reduced their cost. Unlike servo motors, stepper motors don’t require tuning to optimize their performance. What’s more, scaling and motion commands are typically quick and simple to execute using stepper motors. Servo motors often require a bit more expertise in executing complicated (torque, velocity, or position) loop closures. Finally, micro-stepping allows most modern drive electronics to step or increment a stepper motor to a resolution of 50,800 steps per revolution or higher.

Posted in: Articles, Motion Control, Motors & Drives, Optimization, Energy conservation, Electric drives, Electric motors
Read More >>

An Inside Look at Electromechanical Power-Off Braking Options

Making the right choice between spring set and permanent magnet brakes can impact safety, durability, maintenance, and performance.

Power-off brakes are designed to hold or stop motion in the absence of power. Adding an electrical current releases the brake, freeing the load for motion. Given the safety ramifications of keeping a system locked in place until it is powered up, motion control system designers tend to specify power-off brakes more often than power-on brakes. There are, however, two different failsafe brake technologies: one uses compression springs to hold its load in place, and the other uses permanent magnets. Each has specific strengths and weaknesses, and knowing the difference can impact safety, durability, cost, and performance.

Posted in: Articles, Motion Control, Electronic brake controls, Springs, Magnetic materials
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.