FUYU Technology company News and Trends items

linear motion design Linear motion is an area of motion control encompassing several technologies including linear motors, linear actuators, and linear rolling guides and bearings, among others. Linear motors — an accurate option Traditional linear motors are basically a permanent magnet rotary motor rolled out and laid flat. It’s as if the stator and rotor were cut...

We offer motorized stages that can be assembled into many different configurations; for example, XY stages, XYZ stages . We list top 5 the most popular stage combinations here, but you can select your own combination of family, travel and lead screw pitch in each axis to build the stage you need. We ship multiple stages un-assembled to avoid damage to the moving parts. ...

Motors produce torque and rotation through the interaction of magnetic fields in the rotor and the stator. In an ideal motor — with mechanical components that are perfectly machined and assembled and electrical fields that build and decay instantaneously — torque output would be perfectly smooth, with no variations. But in the real world, there are a variety of factors t...

Backlash: The enemy of linear systems Backlash is caused by clearance, or play, between mating parts, which introduces a dead band when the direction of travel is reversed. In the dead band, no movement occurs until the clearance between mating parts is eliminated. Components that typically experience backlash include ball screws, lead screws, belt and pulley systems, ...

When evaluating the accuracy of a linear motion system, the area of focus is often the positioning accuracy and repeatability of the drive mechanism. But there are many factors that contribute to the accuracy (or inaccuracy) of a linear system, including linear errors, angular errors, and Abbé errors. Of these three types, Abbé errors are probably the most difficult to m...

First, a Cartesian system is one that moves in three, orthogonal axes — X, Y, and Z — according to the Cartesian coordinates. (Although it should be noted that a rotary axis — in the form of an end effector or end of arm tooling — is sometimes included on the outermost axis of a Cartesian robot.) What makes a Cartesian robot a robot is that the axes perform coordinated ...

Who could know better than you exactly what your electric linear actuator needs are? And today you can buy so many ready-made subcomponents you can just assemble “modules” — little parts fabrication required. Engineering your own linear actuator system is often the most cost and time-efficient, wisest route to an automated motion solution. Yet, when you consider the time...

MAJOR COMPONENTS This particular actuator is powered by a 12VDC brushed motor. It comes with the built-in end of travel limit switches to prevent overextension and retraction, a standard feature for our products. Other main components will be the gearbox, lead-screw and acme drive nut which also engages the limit switches once it reaches a certain position. The above pi...

Drones and crawling robots outfitted with special scanners could help wind blades stay in service longer, which could lower the cost of wind energy at a time when blades are getting bigger, pricier, and harder to transport. To that end researchers at DoE’s Blade Reliability Collaborative and Sandia National Laboratory have been working on ways to noninvasively inspect wi...

The servo and stepper motors that drive linear motion systems often include a braking function, or, in the case of stepper motors, detent torque that helps prevent the motor (and, therefore, the load) from moving when powered off. But in some applications, a secondary brake is required — either to provide redundancy and meet safety requirements or to hold the load accura...

Linear guides and systems are typically subjected to both linear forces due to downward, upward, and side loads and rotational forces due to overhung loads. Rotational forces — also referred to as moment forces — are typically defined as roll, pitch, and yaw, based on the axis around which the system tries to rotate. To define roll, pitch, and yaw in linear systems, w...

There are many ways to build linear systems for motion in the X, Y, and/or Z directions – also known as Cartesian coordinates. The terms we generally use to refer to these systems depend on how the axes are assembled, where the load is positioned, and to some extent, what type of use the system was designed for. In many industrial applications, Cartesian and gantry-style...

To determine the position of a linear axis, an encoder read head travels along a scale and “reads” changes in light (for optical encoders) or magnetic field (for magnetic types). As the read head registers these changes, it produces sine and cosine signals that are shifted 90 degrees from each other (referred to as “quadrature signals”). These analog sine and cosine sign...

Many automated machines rely on linear guidance components, such as profiled rail, round rail or other rolling or sliding bearing structures, to guide and support the moving elements of equipment. Additionally, many times these moving elements are driven by some type of linear actuator device. One of the most common issues in linear systems of any kind is misalignment...

One of the differences between radial ball bearings and recirculating ball linear guides has historically been that radial bearings typically use a cage to separate the balls and control their movement, whereas profiled rail guides did not. But in the early 2000’s, manufacturers of profiled rail bearings began introducing versions with ball cages (also referred to as “ba...

Cartesian handling systems as serial kinematics have main axes for straight-line motion and auxiliary axes for rotation. The system acts simultaneously as guide, support and drive and must be integrated into the application’s complete system regardless of the handling system structure. Standard mounting positions All Cartesian handling systems can be installed in any...

There are numerous ways to classify the performance of linear positioning devices such as ball screws, belts, and rack and pinion systems, but the terminology can be confusing. The two most common terms, accuracy and repeatability, and are often used interchangeably. When someone says that a ball screw is very accurate, they may really mean that it’s repeatable. In fact,...

The linear bearing is a very important part of the Linear Guide. It is a linear motion system that is produced at a low cost and is used for infinite strokes in conjunction with cylindrical shafts. Because the bearing ball is in point contact with the shaft, the use load is small. The steel ball rotates with a small frictional resistance so that a high-precision smooth m...