About Linear Guides Installation

Posted on Apr 2, 2019

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About Linear Guides Installation

In automatic production lines, linear guides are also called linear slides. This is a bearing structure that provides free movement in one direction. In the market, there are different types of linear guides. Motorized linear guides, such as machine guides, roller tables and other dovetail slides, are bearings that move through the drive mechanism.

About Linear Guide

In automatic production lines, linear guides are also called linear slides. This is a bearing structure that provides free movement in one direction. In the market, there are different types of linear guides. Motorized linear guides, such as machine guides, roller tables and other dovetail slides, are bearings that move through the drive mechanism.


Non-motorized linear guide

Not all linear guides are motorized. Some non-motorized dovetail slides, ball bearing guides and roller slides can provide low friction linear motion for inertia driven equipment. All linear slides provide linear motion based on their bearing design. The design can be ball bearings, dovetail bearings, linear roller bearings, magnetic bearings or fluid bearings.


Applications

Many guides are used to guide the load to support external strength, torque and bending effects. At the same time, they are also used as anti-rotation devices. These linear guides provide high-precision guidance and allow the load to be accurately positioned in accuracy.

Usually, the load is installed on the front plate of the linear guide, and the mechanical scale and mounting options are compatible with other devices. Many linear motors consist of linear guides/ slider and stator. Therefore, the direct and indirect application of linear guides is quite extensive in the industry.


Linear motor introduction

In the manufacturing and consumer industries, linear motors are motors that unroll the stator and rotor. In addition to rotational torque, linear motors can also emit linear forces along their length. Although the force is linear, linear motors are not always linear.

The development of linear motors can be traced back to the 1840s in Britain. But in practical applications, after this there is a viable linear induction motor in the United States, which is used to drive trains or elevators. A German engineer built a working model in the 1930s. Then in the late 1940s, the first full-scale working model was designed and implemented.

In about a century, the development of linear motors began with a concept, then promoted by many inventors and engineers, and finally applied in industry. The above mentioned is a low acceleration linear motor. On the other hand, a BLDC motor is a synchronous motor that is driven by direct current through an inverter that emits alternating current to excite each phase of the motor through a closed-loop controller. At the same time, the controller provides current pulses to the motor windings to control the torque and speed of the motor equipment. Generally speaking, the structure of a brushless motor is the same as or similar to a permanent magnet synchronous motor (PMSM for short), and the former can be regarded as a switched reluctance motor.

:: Read more : What is a Linear Motor?

 

The BLDC characteristics play important role in automation

If compare a brushless motor with a brushed motor, it is clear that the former design has a higher power-to-weight ratio, higher speed, better electronic control, and lower maintenance costs. Based on these advantages, brushless DC motors are widely used in various fields. For example, ordinary servo motors (DC and AC) are commonly used in robotics. In recent years, AC servo motors have been widely used, because control of them has become easier than before, and can withstand better torque.

The price of the servo motor is generally high, so the standard sensor installed is usually an optical sensor with a selected resolution. With the introduction of BLDC motors, industrial robotic arms can now move heavy objects with high precision, but at a lower cost than other alternative solutions. Many robotic arms used in industry are equipped with brushless DC motors, which provide the best output quality for manufacturers.
 

BLDC motor & linear motors

BLDC motors can be used in a wide range of industrial fields, and robotic arms are just one example. Another popular usage is linear motors. Linear motors are devices that can produce linear motion without a transmission system. The conventional transmission system needs to include many components, such as rack and pinion, ball-and-lead screw, cam, etc. All rotary motors need to be composed of these components.

:: Read more : BLDC Motors & Automation

 

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