Machine Drawing and its machine component drawing.pdf
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Mar 08, 2025
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About This Presentation
MACHINE DRAWING
Size: 3.95 MB
Language: en
Added: Mar 08, 2025
Slides: 80 pages
Slide Content
DEPARTMENT OF MECHANICAL ENGINEERING
I I B . TE C H I S E M
MACHINE DRAWING
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COURSE OBJETIVES
Introduction
CO1: Students learn about the conventional representation of materials, machine elements, and
sizes of drawing sheets.
UNIT - 1
CO2: Explain the concept of how to draw Selection of Views, additional views for machine elements
and parts like Screwed fasteners, Keys, Cotters and Pin joints.
CO3: Explain the concept of how to draw Selection of Views, additional views for machine elements
and parts like Riveted joints, Shaft couplings and Bearings.
UNIT - 2
CO4: students learn about the drawings of assembled views for the part drawings of the following
using conventions like Engine parts.
CO5: students learn about the drawings of assembled views for the part drawings of the following
using conventions like machine parts, Valves.
DEPARTMENT OF MECHANICAL ENGINEERING
I N TR O D U C TI O N
CONVENTIONAL
REPRESENTATIONS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
MAPPING OF COURSE OBJETIVES
LECTURE LECTURE TOPIC KEY ELEMENTS LEARNING OBJECTIVES
1 Introduction to IS conventions. Materials, machine
component
Understanding the representation of
materials machine components (B2)
INTRODUCTION
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
INTRODUCTION SYLLABUS
MACHINE DRAWING CONVENTIONS
•Need for drawing conventions –Introduction to IS conventions.
•Conventional representation of materials, common machine
elements and parts such as screws, nuts, bolts, keys, gears.
•Methods of dimensioning, general rules for sizes and placement of
dimensions for holes, canters curved and tapered features.
•Title boxes, their size, location and details -common abbreviations
& their liberal usage
•Types of Drawings –working drawings for machine parts.
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONVENTIONAL REPRESENTATION OF
MATERIALS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONVENTIONAL REPRESENTATION OF
MACHINE ELEMENTS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONVENTIONAL REPRESENTATION OF
MACHINE ELEMENTS
DEPARTMENT OF MECHANICAL ENGINEERING
S C R E W E S FA S T E N E R S , K E Y S , C O T T E R S , P I N J O I N T S ,
R I V E T E D J O I N T S , S H A F T C O U P L I N S A N D B E A R I N G S
UNIT-1
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COURSE OUTLINE UNIT -1
LECTURE LECTURE TOPIC KEY ELEMENTS LEARNING OBJECTIVES
Screwed fasteners Forms of Screw threads, bolts, nuts,
stud bolts, tap bolts, set screws.
1. Remember the standard formulas of
component (B1).
2. Understand the how to draw a
components (B2).
3.Apply the design formulas for
components(B3)
Keys, Cotters and Pin
joints
i)Saddle keys, sunk keys
ii)Cotter joint with sleeve, cotter
joint with socket &spigot ends,
cotter joint with a gib.
iii)knuckle joint
1. Remember the standard formulas of
component (B1).
2. Understand the how to draw a
components (B2).
3.Apply the design formulas for
components(B3)
Riveted joints plates 1. Remember the standard formulas of
component (B1).
2. Understand the how to draw a
components (B2).
3.Apply the design formulas for
components(B3)
Shaft
couplings:
Draw the different types of shaft couplings 1. Remember the standard formulas of
component (B1).
2. Understand the how to draw a
components (B2).
3.Apply the design formulas for
components(B3)
Bearings Journal, pivot and collar and foot step bearings 1. Remember the standard formulas of
component (B1).
2. Understand the how to draw a
components (B2).
3.Apply the design
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SYLLABUS-UNIT 1
DRAWING OF MACHINE ELEMENTS AND SIMPLE PARTS
Selection of Views, additional views for the following machine elements and parts
with every drawing proportion.
•Screwed fasteners: Popular forms of Screw threads, bolts, nuts, stud bolts, tap
bolts, set screws.
•Keys, Cotters and Pin joints:
Saddle keys, sunk keys
Cotter joint with sleeve, cotter joint with socket &spigot ends, cotter joint with a gib.
iii)knuckle joint
•Riveted joints for plates
•Shaft couplings:
Rigid couplings-sleeve or muff couplings, Flanged couplings
Flexible couplings-Bushed pin type flanged coupling, compression coupling
iii)Dis-engaging couplings-claw coupling, cone coupling
iv)Non-Aligned couplings-Universal coupling(Hooke’s Joint),Oldham coupling,
cushion coupling & spigot and socket pipe joint.
•Bearings: Journal, pivot and collar and foot step bearings.
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SCREW FASTENERS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
TYPES OF FORM OF THREADS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Drawing Hexagonal (Bolt Head ) Nut
Major or nominal diameter of bolt = D
Thickness of nut, T = D
Width of nut across flat surfaces, W = 1.5D + 3 mm
Radius of chamfer, R = 1.5D
https://www.youtube.com/watch?v=ly
Z3vlLiWLY
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Drawing Hexagonal (Bolt Head ) Nut
https://www.youtube.com/watch?v=lyZ3vlLiWLY
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Drawing of square Nut
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Hexagonal and Square Headed Bolts
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Hexagonal and Square Headed Bolts
https://www.youtube.com/watch?v=FbvBgc9Sq2Y
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BOLTED JOINT
Other Forms of Bolts
Square Headed Bolt with Square Neck
Fig.Square headed bolt with
square neck
T-Headed Bolt with Square Neck
and Hook Bolt:
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
EYE BOLT
f 0.8 D
2 D
https://www.youtube.com/watch?v=Hrjs3G-HEms
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
EYE AND BENT FOUNDATION BOLT
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
LEWIS FOUNDATION BOLT
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KEYS
Hollow Saddle Key
https://www.youtube.com/watch?v=cgZW-dulrJk
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KEYS
Flat Saddle Key
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KEYS
Key with gib
Thickness of key, T = 0.67 W
(at the thicker end) Standard taper =
1:100
Height of head, H = 1.75 T
Width of head, B = 1.5 T
If D is the diameter of the shaft, then,
Width of key, W= 0.25 D + 2 mm
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KEYS
(i) peg feather key, (ii) single headed feather key and
(iii) double headed feather key.
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KEYS
(i) peg feather key, (ii) single headed feather key and
(iii) double headed feather key.
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
WOODRUFF KEY
Key If D is the diameter of the shaft,
Thickness of key, W = 0.25 D
Diameter of key, d = 3 W
Height of key, T = 1.35 W
Depth of the keyway in the hub, T1 = 0.5 W + 0.1 mm
Depth of keyway in shaft, T2 = 0.85 W
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COTTER JOINTS
Cotter Joint with Sleeve
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COTTER JOINTS
Cotter Joint with Sleeve
https://www.youtube.com/watch?v=_2h0N-b2Lm4
https://www.youtube.com/watch?v=Nu0PKhTz7JU
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COTTER JOINTS
Cotter Joint with Socket and Spigot Ends
Fig. Cotter joint with socket and spigot ends
D D D
5
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COTTER JOINTS
Cotter Joint with Socket and Spigot Ends
https://www.youtube.com/watch?v=esfr74WhbYg
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COTTER JOINTS
Cotter Joint with a Gib
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KNUCKLE JOINT
https://www.youtube.com/watch?v=PUgZt2
w_tUM
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
KNUCKLE JOINT
https://www.youtube.com/watch?v=PUgZt2w_tUM
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Butt-muff coupling
Half-lap muff coupling
Split-muff coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Butt-muff coupling
Half-lap muff coupling
Split-muff coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Butt-muff coupling & Half-lap muff coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Flanged coupling
Protected flanged coupling
Solid flanged coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Flanged coupling
Protected flanged coupling
Solid flanged coupling
https://www.youtube.com/watch?v=TNE0E0YS6qk
https://www.youtube.com/watch?v=9idc0CzMjCo
https://www.youtube.com/watch?v=lwYIw0C9RTk
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Compression Coupling
Claw coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Cone Coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SHAFT COUPLINGS
Universal Coupling (Hooke’s Joint)
Oldham Coupling
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
RIVETTED JOINTS
Types of rivet heads
Rivet
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
RIVETTED JOINTS
Lap Joints
Single riveted lap joint
Double riveted chain lap joint
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
RIVETTED JOINTS
Lap Joints
Double riveted zig-zag lap joint
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BUTT JOINTS
Single riveted, single strap butt joint Single riveted, double strap butt joint
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
BUTT JOINTS
Double riveted, double strap
chain butt joint
Double riveted, double strap zig-zag
butt joint
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
RIVETED JOINTS ANIMATION
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
PIVOT OR FOOT-STEP BEARING
https://www.youtube.com/watch?v=l4HM1R5dNHo
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COURSE OUTLINE UNIT -2
UNIT-2
NO OF LECTURE HOURS:
LECTURE LECTURE
TOPIC
KEY ELEMENTS LEARNING OBJECTIVES
1. Engine parts stuffing box, cross head, Eccentric,
Petrol Engine connecting rod
1. Understand the PART drawing
of assembly components (B2).
2.Apply the assembly procedure
(B3)
2. machine parts Screws jack, Machine Vice, Plummer
block, Tailstock
1. Understand the PART drawing
of assembly components (B2).
2.Apply the assembly procedure
(B3)
3. Valves spring loaded safety valve, feed check
valve
1. Understand the PART drawing
of assembly components (B2).
2.Apply the assembly procedure
(B3)
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
COURSE OBJECTIVES
UNIT - 2 CO4: students learn about the drawings of assembled views for the part drawings of the following
using conventions like Engine parts.
CO5: students learn about the drawings of assembled views for the part drawings of the following
using conventions like machine parts, Valves.
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
STUFFING BOX
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
STUFFING BOX
https://www.youtube.com/watch?v=rLDC1L1WFW8
Assembly Drawing Link
https://www.youtube.com/watch?v=8ar0oYyF5a8
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
STEAM ENGINE CROSSHEAD
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
STEAM ENGINE CROSSHEAD
https://www.youtube.com/watch?v=iESHDRW1Rks
https://www.youtube.com/watch?v=z9Sudq0vUSE
Assembly Drawing Link
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CROSSHEAD
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CROSSHEAD
https://www.youtube.com/watch?v=Ept1ztQsXsM
https://www.youtube.com/watch?v=jm5sOOhNo6c
Assembly Drawing Link
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
ECCENTRIC
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
ECCENTRIC
Assembly Drawing Link
Assembly Drawing animation Link
https://www.youtube.com/watch?v=-Lts0axaeis
https://www.youtube.com/watch?v=xbzWbB-pLL4
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONNECTING ROD
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONNECTING ROD
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
CONNECTING ROD
Assembly Drawing Link
Assembly Drawing animation Link
https://www.youtube.com/watch?v=ZoCn4Pb6rLU
https://www.youtube.com/watch?v=6emnuUPytLo
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SCREW JACK
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SCREW JACK
Assembly Drawing Link
Assembly Drawing animation Link
https://www.youtube.com/watch?v=H_nOMxAoI84
https://www.youtube.com/watch?v=r7ajkX1DrYw
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
MACHINE VICE
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
MACHINE VICE
https://www.youtube.com/watch?v=Ss5nBSIr5MY
https://www.youtube.com/watch?v=sghEwiN2tkE
Assembly Drawing Link
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
PLUMMER BLOCK
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
MACHINE VICE
Assembly Drawing Link
https://www.youtube.com/watch?v=Y-_LjEjyLhA
https://www.youtube.com/watch?v=igsyruvtIWg
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
LATHE TAIL-STOCK
21
3 9 3 8
$1
3
$
1
4 HOLES, M6
DEEP 9
PCD
$1
R2
M1
2
5
7
15
R9
R1 R1
R2
26
M12×
18
$2
18 120
1
7
2
R1
8 30 12
30
72
$
R
$21
R
R 2
2
R
9
$15
6 3
21 12
18
1
2
36
6
9
6
1
4 16
1:2 SQ Thd Dia 21×3
M1
KEYWA
Y
,
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
LATHE TAIL-STOCK
https://www.youtube.com/watch?v=16SufCt10WY
Assembly Drawing Link
Assembly Drawing animation Link
https://www.youtube.com/watch?v=rrnbS10iYDA
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
SPRING LOADED SAFETY VALVE
2 HOLES, DIA
$6
R3
10 $1 6
76 3
13
$6
10
27
8
126
11
$1
80 6
$2 R20
12
24
20
60
5
82
32
40
8
8
$6
$2
$2
R6
6
66
7
12 14
Part
No.
Nam
e
Ma
tl
Qt
y
Part
No.
Nam
e
Mat
l
Qt
y
1 Body Cl 1 8 Toggle-pin MS 1
2 Valve seat GM 1 9 Lever guide MS 1
3 Valve GM 1 10 Lever FS 1
4 Cover Cl 1 11 Fulcrum pin MS 1
5 Cover bush
Bra
s
s
1 12 Weight Cl 1
6 Spindle MS 1 13 Lever pin MS 1
7 Toggle MS 1 14 Stud with
nut
M20
— 6
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
FEED CHECK VALVE
20
6
10
2
4
12
R3
0
10
8
RIB
,
12 12
8
12
R
1
0
12
5
26
75
2 HES,
M
1
6
6
76
4
74 20
6
N
o.
Na
me
Mat
l.
Qt
y
1 Body Cl 1
2 Cover Cl 1
3 Spindle MS 1
4 Valve GM 1
5 Valve seat GM 1
6 Gland GM 1
7 Hand wheel Cl 1
8 Stud MS 6
9 Stud MS 2
10 Nut MS 6
11 Nut MS 3
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
FEED CHECK VALVE
https://www.youtube.com/watch?v=KCIy0n4tAUo
Assembly Drawing Link
Assembly Drawing animation Link
https://www.youtube.com/watch?v=unMZIAiuzwY
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
AIR COCK
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
AIR COCK
https://www.youtube.com/watch?v=CmNWh_wRDKo
Assembly Drawing animation Link
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
INDUSTRIAL APPLICATIONS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
INDUSTRIAL APPLICATIONS
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
QUESTION PAPER
D E PAR TME NT O F M E C HANICAL E NG INE E R ING
QUESTION PAPER