Cam followers are power-transmission devices with a rotary bearing core that bears load while serving as the interface between independently moving machine sections. Applications include those on rotary indexing tables and turntable conveyors, long-stroke robot transfer units (RTUs), and an array of highly customized machinery. The outer diameter (OD) of the cam-follower bearing assembly is […]
Linear “lineup” impressive for Robotic Summit in June: Attend for technology insights
Robots aren’t all humanoid and SCARA; some take the form of linear-motion arrangements. In fact, we’ve covered how Cartesian arrangements in particular offer better energy efficiency and price points than more stereotypical robotic arrangements. You’ll get copious amount of information on such linear designs and technologies at the 2019 Robotics Summit (on commercial-robotics design, development, […]
Electric cylinders with programmable MDrive integrated motors
Captive shaft electric cylinders are now available for Lexium MDrive (LMD) integrated motor products. Quiet, clean and compact, these LMD products from Schneider Electric Motion USA integrate motor, controls, and electric cylinder to deliver linear motion. Unlike pneumatics, there’s no need for compressed air … eliminating that expense, maintenance, and noise. Lexium MDrive products integrate […]
Gallery: Hexapod robots – design variations and applications
Hexapod robots, also referred to as simply “hexapods” or “Stewart platforms,” are a type of parallel kinematic device with six degrees of freedom. You might recognize hexapod robots as the technology behind motion simulators and vibration isolation mechanisms, where their six degrees of freedom (X, Y, Z, roll, pitch, and yaw) allow them to accurately […]
Miniature linear translation stages in X, XY, and XYZ configurations
The new L-505 linear translation stage family from PI (Physik Instrumente) is available with integrated linear encoders providing 0.05 microns and 0.005 microns resolution, respectively. The new design allows for compact multi-axis assemblies, at affordable prices. Many motor and drive variations are available, from fast dc-servo motors with linear encoders and low-friction ball-screws to simple […]
Motion Trends: Linear bearings help some CNC machine builders trim cost
Axes on CNC machines to allow spindle movements are mission critical — requiring high accuracy. But doors and other linear axes have different design requirements — with forgiveness and ruggedness being priority instead. Now, linear bearings from Rollon Corp. help some CNC machine builders trim cost and improve reliability by satisfying these unique design requirements. […]
Linear motor stage offers long travel, nanometer resolution
The new V-417.336025E1 long travel linear motor stage from PI (Physik Instrumente) features travel length of 32 in. (813 mm). The direct-drive stage achieves high velocities to 79 in./sec (2 m/sec) based on a direct drive ironless linear servo motor. High accuracy, repeatability, and functionality are guaranteed by an integrated absolute-measuring linear position encoder featuring […]
Update on roller-screw actuator design and applications (with video and image galleries)
Roller screws are also called planetary roller screws or sometimes satellite roller screws for how their nut-encased rollers orbit the drive-shaft axis during operation. These mechanical rotary-to-linear devices work in an increasing number of electromechanical actuators. Satellite roller-screw geometry includes far more internal contact between load-bearing subcomponents than their ballscrew cousins, and that boosts rigidity […]
Cannabis cultivation leverages modular automation stations
By Michael G. Giunta • National sales manager | Macron Dynamics Uninitiated laymen might assume today’s cannabis is grown through traditional farming — over horizontal outdoor spaces in natural environments managed by Mother Nature. But large-scale cannabis farming is typically indoors and highly automated. That’s for a couple reasons: • Security is a major concern […]
New 20-mm linear stepper motor now available from Nippon Pulse
Nippon Pulse now sells the the PFL20 Linearstep — its smallest linear stepper motor yet. The PFL20 is a highly efficient, high thrust tin-can linear actuator with a 20-mm diameter and a bipolar winding. PFL20 is RoHS-compliant, has a 30/60-mm effective stroke, and can reach 6 N of force at 200 pps. With 24 steps […]
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