NPTEL Automation in Manufacturing Course PDF

NPTEL online certification course on Automation in Manufacturing Dr. Shrikrishna N. Joshi Associate Professor Department of Mechanical Engineering Indian Institute of Technology Guwahati Guwahati PIN 781 039 Assam, India W...

NPTEL online certification course on Automation in Manufacturing Dr. Shrikrishna N. Joshi Associate Professor Department of Mechanical Engineering Indian Institute of Technology Guwahati Guwahati PIN 781 039 Assam, India Week 1: Introduction Lecture 2 Mechatronics 2 Outline ❖ Mechatronics ❖ Disciplines of mechatronics ❖ Mechatronics for replacement of mechanics: wrist watch ❖ Mechatronics based systems 3  Definition of Mechatronics ❖ Mechatronics is a concept of Japanese origin (1969) ❖ Application of electronics and computer technology to control the motions of mechanical systems. ❖ Greater flexibility, easier redesign, reprogramming, and ability to carry out automatic data collection and reporting ❖ Now, we use regularly various mechatronics based systems such as washing machines, food processing units, air-conditioners etc. at home. ❖ At workplaces, various utilities viz. computers, printers, automatic beverage vending machines, etc. are helping us to enhance our work efficiency. 4 Multiple disciplines of Mechatronics ❖ Multidisciplinary approach to product and manufacturing system design ❖ Involves application of electrical, mechanical, control and computer engineering to develop products, processes and systems with greater flexibility, ease in redesign and ability of reprogramming. ❖ It concurrently includes all these disciplines. 5 Disciplines of Mechatronics ❖ Mechanical Engineering: machines and mechanisms ❖ Electrical engineering: electric prime movers viz. AC/DC, servo motors ❖ Electronics engineering: micro processors sensors, actuators and control systems control engineering helps in the development of various electronics based control systems to enhance or replace the mechanics of the mechanical systems. 6 Contribution from computer engineering ❖ Development of software to control the hardware of a machine / mechanism ❖ Provide “user friendly” interaction and control of machines and mechanisms to the human being. ❖ Manufacturing of a product to create newer product designs – computer aided design (2D / 3D) Computer aided manufacturing simulations to plan the manufacturing activities which include materials and manufacturing resource planning, record keeping, market survey, and other sales related activities. 7 Mechatronics for replacement of mechanics with electronics Quartz Technology Mechanical watch/clock Replacement of mechanics SMART Devices 8 Mechanical watch/clock 9 Quartz Technology 10 SMART Devices 11 Mechatronics based systems ❖ Modern CNC based production machine tool The work table of a can now move in a step of few microns with high level of precision ❖ Domestic washing machines are now “intelligent” ❖ Four-wheel passenger automobiles: safety and comfort Air-bags, parking (proximity) sensors, antitheft electronic keys, comfort, entertainment, communication etc. 12 Summary ❖Mechatronics: definition ❖Disciplines of mechatronics ❖Mechatronics for replacement of mechanics: wrist watch ❖Mechatronics based systems 13 What we will learn in week 2: lecture 1? ❖ Definition of a system ❖ Building blocks of a mechatronics based system ❖ Development of an equivalent mechatronics based system 14