Schedule for Training for
MACHINE TOOL DESIGN (SPM)
Total Duration – 42 Hours Lecturer – Vijay Kakade
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Design of Machine Tool Drives
1) Selection of Electric Motor
2)Stepped Regulation of Speed,
3)Design of Stepped Drives:
a) Speed Gear box : Limiting Transmission
Ratio of Speed Gear Box,
Design Case Study of Speed Gear Box
for Lathe, Classification of Speed Gear
Boxes
b) Feed Gear box: Limiting Transmission
Ratio of Feed Gear Box,
Design Case Study of Feed Gear Box
(with Gear Cone & Sliding Key) for Drilling
Machine, Classification of Feed Gear Boxes,
Study of Application of Norton’s &
Meander’s Mechanism for Thread Cutting
4) Step less Drives
Duration – 7 Hours
Signature of Student with Date & Time
Design of Machine Tool Structure
Function & Requirement of Machine Tool
Structure, Design Criteria from Strength
& Stiffness considerations, Concept of
Unit Rigidity, Unit Strength under
Tension, Unit Strength under Torsion &
Unit Strength under Bending for
Material of Machine Tool Structures,
Compare Steel & Cast Iron on the basis
of Material Properties, Manufacturing
Problems and Economy, Role of Static &
Dynamic Stiffness in the design of
elements of machine tools.
Duration – 7 Hours
Signature of Student with Date & Time
Objectives:
1.
To makes the students understand the concepts & broad principles of contents of the course
2. Develop conceptual framework of the course
3.
Aim is to provide insight of the subject
4.
Sensitizes the students of the importance of course in real life environment
Design of Guide ways
Function & Types of Guideways, Types
of Slideways & Antifriction Ways,
Functional features of Slideways, its
Shapes & Materials, Methods of
adjusting Clearance, Design Criteria
(Wear Resistance & Stiffness) and
Calculations for Slideways operating
under semi liquid friction condition,
‘Stick Slip’ phenomena affects accuracy
of setting & working motions.
Comparison of Design & stiffness of
Hydrodynamic, Hydrostatic & Aerostatic
Slideways,
Design of Antifriction Guideway,
Concept of Combination Guideways
Duration – 7 Hours
Signature of Student with Date & Time
Design of Power Screws
Design of Sliding friction Power Screw
for Wear Resistance, Strength,
Stiffness, & Buckling Stability.
Design of Rolling friction Power Screw
for Strength under static loading,
Strength under cyclic loading, &
Stiffness
Duration – 7 Hours
Signature of Student with Date & Time
Design of Spindle
Function & Requirements of Spindle
Units, their Materials,
Effect of Machine Tool Compliance on
Machining accuracy
Design of Spindle for Bending Stiffness :
Deflection of Spindle Axis due to
a)Bending, b) - due to Compliance
of Spindle Supports, c) - due to
Compliance of the Tapered Joint
Optimum Spacing between Spindle
Supports
Permissible Deflection & Design for
stiffness: Additional Check for Strength
like Additional Supports, Location of
Bearings and Drive elements, Balancing
Duration – 7 Hours
Signature of Student with Date & Time
Design of Spindle Supports
Requirements of Spindle Supports
Features of Anti-friction Bearings, Load
bearing abilities of Ball & Roller
Bearings. Parameters which asses the
viability of combination of roller & Ball &
Roller Bearings in Spindle Units.
Preloading of Anti Friction Bearing & its
method
Duration – 7 Hours
Signature of Student with Date & Time
Design of Sliding Bearings: Sleeve,
Hydrodynamic Journal, Hydrostatic
Journal,
Air-Lubricated (Aerodynamic,
Aerostatic)
Outcomes:
At the end of the course student will be in a position to
1. List down the factors that influence the application of the course content in
the industrial environment
2. Undertake final year project work based upon the application of the course
content
3. Identify areas for research oriented work based on the course content
4. Apply the knowledge of the course in solving real life problems