MAHENDRA ENGINEERING COLLEGE FOR (3) ROBOTICS finall (1).pptx

PPT

1. MAHENDRA ENGINEERING COLLEGE FOR  WOMEN Department of Information Technology   Presented by AARTHI C II IT DEEPIKA V II IT VINOTHA K II IT

2. robotics drives and motors

3. ABSTRACT ROBOTICS DRIVE AND MOTORS PLAY A FUNDAMENTAL ROLE IN THE FIELD OF ROBOTICS ,ENABLING THE MOVEMENT AND FUNCTIONALITY OF ROBOTS . THIS ABSTRACT EXPLORES THE KEY CINCEPTS RELATED TO ROBOTICS DRIVE SYSTEMS AND MOTORS . IT DISCUSSES THE DIFFERENT TYPES OF MOTORS COMMENLY USED IN ROBOTICS ,INCLUDING DC MOTORS ,STEPPER MOTORS ,SERVER MOTORS AND THEIR RESPECTIVE ADVANTAGES AND APPLICATIONS .

4. ROBOT DRIVE SYSTEMS DRIVE SYSTEM - PROVIDES POWER TO THE LINKS OF THE ROBOT. THEY ARE ALSO KNOWN AS ACTUATORS. FORCE OR TORQUE – LINK MOVEMENT WRIST MOTION.

5. actuators

6. Actuators Device used for converting hydraulic, pneumatic and electrical energy into mechanical energy. Produce linear, rotary or oscillation motion. Applications Lifting Tilting Clamping Opening Closing metering mixing turning

7. HYDRAULIC ACTUATORS Hydraulic energy stored – mechanical energy Fluid power device- utilizes high pressure fluid(oil). Power packs

8. HYDRAULIC CIRCUIT

9. Types Linear hydraulic actuators Single acting cylinder Double acting cylinder Double acting double rod cylinder Hydraulic rotary actuators Gear motor Vane motor Piston motor

10. Features of hydraulic actuators Provide high power in small light components. Provide step less variation in speed Longer life and reliability Unclean work area Power loss Less deflection

11. PNEUMATIC ACTUATORS Working fluid – compressed air Pressure – 6 to 10 MPa. Drifts under loads. Converted into mechanical energy – pistons or turbines. Movement – Potential energy. Pneumo mechanical device – automate industrial task in iterative nature.

12. A PNEUMATIC ACTUATOR

13. Inaccurate response Lowest power to weight ratio Low pressure compressed air is used Reliable and components are easily available. FEATURES

14. MORE NOISE AND VIBRATION NOT SUITABLE FOR HEAVY ADVANTAGES THE SYSTEMS ARE COMPACT CONTROL IS SIMPLE CHEAPEST FORM OF ALL ACTUATORS DISADVANTAGES

15. ELECTRIC ACTUATORS An actuator obtaining electrical energy from mechanical system is called electric actuator. Types DC Servo motors AC servo motors Stepper motors

16. DC servo motors Higher power to weight ratio. High acceleration Uniform torque Good response for better control. Reliable, sturdy and powerful. Produces sparks in operation, not suitable for certain environments.

17. AC Servo motors Rotor is a permanent magnet and stator is housing the winding. No commutators and brushes. Switch is due to AC but not by commutation. Fixed nominal speed. More powerful. Reversibility of rotation possible

18. Stepper motors Moves in known angle of rotation. Position feed back is not necessary. Rotation of the shaft by rotation of the magnetic field. Needs microprocessor circuit to start. Used in table top robots. Finds less use in industrial robots. Extensive use is robotic devices

19. CONCLUSION ROBOTICS DRIVE SYSTEMS TYPICALLY CONSISTS OF MOTORS AND ASSOCIATED COMPONENTS TO CONTROLL MOVEMENT . MOTORS ,SUCH AS DC ,STEPPER OR SERVO MOTORS ,PLAY A CRUCIAL ROLE IN PROVIDING MOTION TO ROBOTICS SYSTEMS . THE CHOICE OF MOTOR DEPENDS ON THE SPECIFIC REQUIREMENTS OF THE ROBOT’S TASK. ADDITIONALLY ,DRIVE SYSTEMS MAY INCLUDE GEARS ,BELTS OR OTHER MECHANISMS TO TRANSMIT MOTION EFFICIENTLY . IT’S ESSENTIAL TO CAREFULLY SELECT THE RIGHT MOTOR AND DRIVE SYSTEM FOR YOUR ROBOTIC APPLICATION TO ACHIEVE THE DESIRED PERFORMANCE .