ACTUATORS.ppt; ROBOT POWER SOURES

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ACTUATOR:

ROBOT POWER SOURCE ACTUATOR

PowerPoint Presentation:

PREPARED BY: MILDRIEZA NALA NYL NOBLE JERIKA HANNA NAVARRO FRENEI ORTIGA GOOD EVEz CLASSM8s 

CONTENT:

CONTENT ROBOT JOINTS ACTUATOR CONTROL TYPES ELECTRIC MOTORS STEPPER MOTORS ELECTRIC MOTORS LINEAR MOVEMENT ARTIFICIAL MUSCLE PNEUMATIC & HYDRUALIC ACTUATORS

OBJECTIVES:

OBJECTIVES Defined what is an actuators Understand the application of actuator Indentify the types of robots joint Enumerated the types of actuators and each function Differentiate the electrical motor & stepper motor Differentiate the pneumatics & hydraulics actuators

PowerPoint Presentation:

ACTUATOR- is a type of motor for moving or controlling a mechanism or system . It is operated by a source of energy, usually in the form of an electric current, hydraulic fluid pressure or pneumatic pressure, and converts that energy into some kind of motion.

ROBOT JOINTS:

TYPES Hinge Joint Revolute Joint Ball and Socket Joint Prismatic Joint ROBOT JOINTS

PowerPoint Presentation:

Hinge Joint is a joint in which the articular surfaces are molded to each other in such a manner as to permit motion only in one place.

Example of Hinge Joints:

Example of Hinge Joints

PowerPoint Presentation:

Revolute Joint is a one degree of freedom kinematic pair used in mechanisms. provide single-axis rotation function unction used in many places such as door hinges, folding mechanisms, and other uni-axial rotation devices.

Example of Revolute Joints:

Example of Revolute Joints

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Ball and Socket Joints is a joint in which the distal bone is capable of motion around an indefinite number of axes, which have one common center. it enables the bone to move in many planes(almost all directions).

Example of Ball and Socket Joints:

Example of Ball and Socket Joints

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Prismatic Joints provides a linear sliding movement between two bodies, and is often called a slider, as in the slider-crank linkage. A prismatic joint can be formed with a polygonal cross-section to resist rotation.

Example of Prismatic Joints:

Example of Prismatic Joints

Types of Actuators:

Types of Actuators ELECTRIC PNEUMATIC HYDRAULIC MECHANICAL PIEZOELECTRIC

ELECTRIC:

ELECTRIC are devices powered by motor that converts electrical energy to mechanical torque. The electrical energy is used to actuate equipment that requires multi-turn valves like gate or globe valves. It is considered as one of the cleanest and readily available forms of actuator as it does not involve oil.

ELECTRIC:

ELECTRIC

HYDRAULIC:

HYDRAULIC (also called a linear hydraulic motor) is a mechanical actuator that is used to give a unidirectional force through a unidirectional stroke and a cylinder or fluid motor that use hydraulic power to facilitate mechanical operation.

HYDRAULIC:

HYDRAULIC

PNEUMATIC:

PNEUMATIC on the other hand, convert energy formed by compressed air at high pressure into ether linear or rotary motion. Pneumatic energy is more desirable for main engine controls because it can quickly respond in starting and stopping as the power source does not need to be stored in reserve for operation.

PNEUMATIC:

PNEUMATIC

MECHANICAL:

MECHANICAL happen when a rotary motion is converted into linear motion to execute a movement. It involves gears, rails, pulley, chain and other devices to operate. used as a mechanism to translate mechanical motion (often rotary) into linear motion or with the help of gearing into rotary motion at a different speed.

MECHANICAL:

MECHANICAL The robots ("RoboticMusic") are basically simple mechanical actuators There is a special sort of springs in the arm of the robot. At the end of this, it holds a mallet.

PIEZOELECTRIC:

PIEZOELECTRIC These actuators use piezoelectric effect to create motion. For those who are not aware of piezoelectric (piezo means press, or apply pressure) effect, it is a charge that accumulates in certain ceramic materials and crystals (like quartz, tourmaline etc.) when a mechanical stress is applied. This is known as piezoelectric effect where deformation of the material creates a voltage difference.

PIEZOELECTRIC:

PIEZOELECTRIC

ELECTRIC MOTORS:

is an electromechanical device that converts electrical energy into mechanical energy . ELECTRIC MOTORS

Main Types::

Main Types: DC Motors - is an electric motor that runs on direct current (DC) electricity. AC Motors - is an electric motor driven by an alternating current.

DC Motors:

DC Motors

AC Motor:

AC Motor

STEPPER MOTOR:

STEPPER MOTOR (or step motor) is a brushless DC electric motor that divides a full rotation into a number of equal steps.

Types :

Types Permanent magnet Hybrid synchronous stepper Variable reluctance stepper

PowerPoint Presentation:

Permanent magnet stepper PM stepper motors generally are thought of as low-torque, large step-angle devices. Torque developed by the stepper motors is far below that for equivalent-size hybrid stepper motors, and step angle generally is 90 or 45°.

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Hybrid synchronous stepper are named because they use a combination of PM and VR techniques to achieve maximum power in a small package size.

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Variable reluctance stepper have a plain iron rotor and operate based on the principle that minimum reluctance occurs with minimum gap, hence the rotor points are attracted toward the stator magnet poles.

ELECTRIC MOTOR LINEAR MOVEMENT:

ELECTRIC MOTOR LINEAR MOVEMENT

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The system converts rotary motion (in the form of an electric motor) to linear motion. When an electrical source is applied to the motor, the threaded shaft is driven and the nut rides up and down the shaft in the corresponding direction. This action provides an extension and retraction capability for tasks requiring a linear displacement. Note that in this example the nut and red tube do not rotate, merely "ride" the threads on the spinning shaft up and down.

Artificial muscles :

Artificial muscles are designed to serve as an electronic device capable of accommodating printed circuits yet, at the same time, capable of moving with human muscles.

PowerPoint Presentation:

Pneumatic artificial muscles (PAMs) are contractile or extensional devices operated by pressurized air filling a pneumatic bladder . Air muscle contracting and extending

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offer all the same advantages of pneumatic artificial muscles, such as compliance, light weight, low maintenance, and low cost, when compared to traditional fluidic cylinder actuators . Hydraulic artificial muscles

PNEUMATICS & HYDRAULICS ACTUATORS :

PNEUMATICS & HYDRAULICS ACTUATORS

PowerPoint Presentation:

Pneumatic actuator converts energy (typically in the form of compressed air) into mechanical motion. The motion can be rotary or linear, depending on the type of actuator.

Hydraulic actuator :

Hydraulic actuator A cylinder or fluid motor that converts hydraulic power into useful mechanical work. The mechanical motion produced may be linear, rotary, or oscillatory. Operation exhibits high force capability, high power per unit weight and volume, good mechanical stiffness, and high dynamic response. These features lead to wide use in precision control systems and in heavy-duty machine tool, mobile, marine, and aerospace applications.

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THE END THANK YOU GOODBYE GOD BLESS 

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