Typical Application of Linear Actuators Stepper Motor

A linear stepper motor actuator is an actuator that creates motion in a straight line, in contrast to the circular motion of a conventional electric motor. Linear actuators are used in machine tools and industrial machinery, in computer peripherals such as disk drives and printers, in valves and dampers, and in many other places where linear motion is required. Hydraulic or pneumatic cylinders inherently produce linear motion. Many other mechanisms are used to generate linear motion from a rotating motor.

Linear actuator falls into two basic categories: belts type and ball screws type.

Belt type linear module mainly consists of: belt, linear guide, aluminum alloy profile, coupling, motor, photoelectric switch, etc.

Ball screw linear module mainly consists of: ball screw, linear guide rail, aluminum alloy profile, ball screw support seat, coupling, motor, photoelectric switch, etc.

Industry application field

Linear modules are widely used in dispensing; precision positioning and inspection of semiconductor liquid crystal devices; medical precision analyzer platform; machine tool industry (laser, EMD EDM); wafer inspection, three-coordinate inspection machine; large-scale printing, scanning, 3D printing Manufacturing, processing, experimental equipment; semiconductor manufacturing equipment; flat panel display (FPD) precision testing equipment; laser equipment, machine vision testing equipment; electronic components, PCB testing equipment; logistics equipment and other industries.

MCB series linear sliding table typical application case

Automated stepper motor assembly line X-axis Y-axis Z-axis linear slide

X axis:

1, effective stroke: 500mm

2, Repeat positioning accuracy: ±0.01mm

3, Speed: 100-200mm/s

4, ball screw: C7φ12

5, encoder resolution: 20000 pulses / circle

6, X-axis load 15KG

Y axis:

1, effective stroke: 500mm

2, Repeat positioning accuracy: ±0.01mm

3, Speed: 100-200mm/s

4, ball screw: C7φ12

5, encoder resolution: 20000 pulses / circle

6, X-axis load 15KG

Z axis:

1, effective stroke: 200mm

2, repeated positioning accuracy: ± 0.01mm

3, Speed: 50-100mm/s

4, ball screw: C7φ12

5, encoder resolution: 20000 pulses / circle

6, X-axis load 10KG2

Other stepper motor:external linear actuator，non captive linear actuator

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The Advantage of Using Encoders to Improve Stepper Motor

Step motors for sale are widely used in automation due to their high resolution, precision positioning, minimal control electronics, and low cost. As an open loop system, traditional step motors are driven without the need for sensors to feed information back to a controller; however, the open loop configuration of step motors has challenges.

Position Verification — When pushed beyond its limits, a step motor will stall before reaching the endpoint. This event typically occurs when motors are not adequately specified for high-cycle applications. An encoder can provide position feedback at the end of the motion profile, indicating if the step motor stopped before reaching the end position. The controller compares the encoder counts that define the actual motor position to the target motor position at the end of a move to determine if there is a difference. If the encoder counts don't match to the actual motor position, a corrective move or motion profile is calculated and executed.

Stall Detection — Stall detection notifies the user/system/machine as soon as a motor stall occurs, eliminating the uncertainty of whether or not the motor reached its target position. A more advanced function than position verification, stall detection (Figure 2) enables the controller to compare the registers of the encoder counts and target motor position on a continuous basis instead of just at the end of the move. The comparison runs continuously in the background. As a result, the stall condition is detected immediately without waiting for the motor to complete an empty cycle so corrective moves are executable sooner.

Stall Prevention— While greatly increasing system functionality, stall detection does not inherently improve step motor performance; it still requires the operator to perform a corrective move and re-reference the axis to the home position. Stall prevention, on the other hand, dynamically and automatically adjusts the move profile to prevent a stall, enabling the motor to operate with constant torque to get into an accurate end position without stalling.

Servo Control and Increased Motor Torque — Using stepper motor encoder feedback to servo-control, a step motor increases motor torque for greater dynamic performance. With peak torques up to 50% higher than the rated holding torque of the motor, the servo-controlled step motor system can operate at higher acceleration rates and with higher throughput for faster machine cycles.

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https://activerain.com/blogsview/5449561/what-s-the-use-of-brakes-on-stepper-motors-you-should-pay-attention

What are Brushless DC Motors Used For?

Brushless DC motors typically have an efficiency of 85-90%, while brushed motors are usually only 75-80% efficient. Brushes eventually wear out, sometimes causing dangerous sparking, limiting the lifespan of a brushed motor. Brushless DC motors are quiet, lighter and have much longer lifespans. Because computers control the electrical current, brushless DC motors can achieve much more precise motion control.

Because of all these advantages, brushless DC motors are often used in modern devices where low noise and low heat are required, especially in devices that run continuously. This may include washing machines, air conditioners and other consumer electronics. They may even be the main power source for service robots, which will require very careful control of force for safety reasons.

Brushless DC motors provide several distinct advantages over other types of electric motors, which is why they’ve made their way into so many household items and may be a major factor in the growth of service robots inside and outside of the industrial sector.

If you think your application could benefit from this technology, browse a list of brushless DC motor here:https://www.oyostepper.com

Source:

https://www.oyostepper.com/article-1105-What-are-Brushless-DC-Motors-Used-For.html