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Mechanical Designs and Motors. RoboticsMechanical aspectsActuators Motors (DC Motors, Servo, Stepper, Encoder) HydraulicsPneumaticsBasic structureMechanismsElectronic.

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Presentation on theme: "Mechanical Designs and Motors. RoboticsMechanical aspectsActuators Motors (DC Motors, Servo, Stepper, Encoder) HydraulicsPneumaticsBasic structureMechanismsElectronic."— Presentation transcript:

1 Mechanical Designs and Motors

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3 RoboticsMechanical aspectsActuators Motors (DC Motors, Servo, Stepper, Encoder) HydraulicsPneumaticsBasic structureMechanismsElectronic aspects Micro- controller(Arduino) Motor drivers(L293, L298, MOSFET) Remote control (PS2, DPDT switches)

4 An actuator is a type of motor for moving or controlling a mechanism or system. It is operated by a source of energy. Types of actuators:  Electric motors DC motor, Servos, Stepper, Encoder  Pneumatics  Hydraulics

5  These are simple motors used for simple purpose.  Speed can be reduced by reducing the voltage supplied, however that’s not an efficient way of doing things.  Torque and speed are inversely proportional. Generally a 100rpm – 300rpm motor is used as the wheels of a robot.  Never apply voltage more than applied voltage.  Rated voltage is generally 6V, 12V or 24 V

6 Rigid bodies connected by joints in order to accomplish a desired force and/or motion transmission constitute a mechanism.  Gripping mechanism, Hands of a robot is referred to gripper.  Lifting mechanism Will be used to lift the gripper.

7  Rotation to linear motion ◦ Rack and pinion ◦ Power screw ◦ Conveyer belt  Rotation to rotation motion ◦ Gears(spur, bevel, worm etc.)

8 Rack and pinion Power screw Conveyer belt

9 Spur gear Bevel gear Worm gear

10  4-Bar mechanism: ◦ Ends stay Parallel. ◦ Good ◦ Universal

11  Roller gripper: ◦ Slow, ◦ Simple, ◦ Misalignment problem

12  Slow  Self Locking.

13  Pulleys  Sliders  4-Bar linkage mechanism  Scissor mechanism

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15  They move linear  Combine pulley and sliders for lifting

16  Parallelogram mechanism.  Object moves parallel.

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18 Omni wheel ATV wheel Wheels for plastic shaft motor Mecannum wheel

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