1. MECHANICAL FINAL YEAR Multipurpose machine PRESENTTED BY
ASHISH KUMAR BARANWAL
JYOTI PAL
VIVEK SINGH CHAUHAN
ADIL KHAN
SOHRAB
MECHANICAL FINAL YEAR

2. CONTENTS- INTRODUCTION OBJECTIVE PLANNING AND PROJECT IDEA
MATERIAL LIST
COSTING OF PROJECT
DESIGN OF MACHINE
CALCULATION AND ANALYSIS
POWER TRANSMISSION THROUGH GEARS
PARTS OF MACHINE
ADVANTAGES
LIMITATIONS
APPLICATIONS
FUTURE IMPLEMENTATION
CONCLUSION

3. INTRODUCTION-
It is the compact unit capable of doing many machining operations that normally require expensive single purpose machine.
With the different attachments that are available with the unit drilling, cutting and grinding can be performed quickly and inexpensively.
A single motor worked as a prime mover in all operations, for controlling all the motor mechanism a switch box is also provided with the machine.

4. OBJECTIVES-
In the industries small job preparation can be done without using heavy machines.
It performs multiple operations simultaneously, giving the workers more opportunity to perform their work quickly and efficiently.
The main purpose of developing and designing, multipurpose machine is to make aware the students about the basic operations at very minimum cost in the institute, they can learn the basic mechanism behind the operations.

5. PLANNING AND PROJECT IDEA
After deciding this topic titled “Multi Purpose Machine”, Ashish had given to each member to work on a particular portion of project like the designing will be done by Jyoti, Report and synopsis will be accomplished by Sohrab, parts manufacturing will be done by Vivek, Material procurement will be done by Adil and the assembly will be done by our whole team.
Ashish said to all that he will help to each member of our group at each and every step of portion to complete their work, like he had helped to Jyoti ,Sohrab, Vivek and Adil to perform the designing, report completion, parts manufacturing and material procurement.

6. MATERIAL LIST
S.NO. Part Material Quantity 1 Set of bevel gears Hardened steel 3 2 Shaft Hardened steel 2 3 Pulley Cast Iron 2 4 Ball Bearing Cast alloy steel 4 5 Grinder Abrasive (composite) 1 6 Cutter High speed steel 1 7 Bar for base Cast Iron 23 8 Drill bit High speed steel 1 9 Work table Wood 1 10 Motor

7. COSTING OF PROJECT 1 Motor 1 5000 5000 2 Bearing 4 150 600
Sr. No. Particulars. Total quantity Cost Rs./Unit TotalCost
Motor
Bearing
Bevel gear
Pulley
Drill arrangement
Drill belt Drill chuck
Nut & Bolt
Grinding wheel
Cutter
Washer
Operational cost

8. Sr. No. Particulars. Total quantity Cost Rs
Sr. No. Particulars. Total quantity Cost Rs./Unit TotalCost 13 Transportation cost Shaft Work table Cable Welding Paint Total 11384

9. DESIGN OF MACHINE-

11. ACTUAL MULTI PURPOSE MACHINE

12. CALCULATIONS & ANALYSIS
Motor Power= 746 watt = 1 hp RPM= 1400 Power (P)= 2πNT/60 (746*60)/(2 π1400) = T Torque (T)= N-m FOR CUTTING AND GRINDING Speed of motor (Nm)=1400 rpm= Speed of big gear (Nb) Teeth of big gear (Tb)= 18 Teeth of small gear (Ts)=10 We know that Nb/Ns = Tb/Ts and the gear ratio =1.8 (Speed of small gear) Ns= 2520 rpm

13. Grinding and cutting velocity
For grinding
Velocity of grinding (Vg) = (πDn)/(60*1000) mm/sec
Where D= Diameter of grinding wheel
Vg= (π*150*2520)/(60*1000)
Vg = mm/sec = m/sec
For cutting
Velocity of cutting (Vc) = (πdn)/(60*1000) mm/sec
Where d= Diameter of cutter
Vc= (π*95*2520)/(60*1000)
Vc= mm/sec= m/sec

14. For drilling Speed on Pulley1 mounted on motor (Np1)= 1400 rpm Speed on Pulley2 mounted on drill (Np2)= ? Dia of pulley mounted on drill (Dp2) = 7.3cm Dia of pulley mounted on motor (Dp1)= 9.4cm We know that Np1/Np2 = Dp2/Dp1 Np2= 1802 rpm Hence the drilling speed (Np2) = 1802 rpm.

15. POWER TRANSMISSION THROUGH GEARS
Bevel gears are gears where the axes of the two shafts intersect and the tooth bearing faces of the gears themselves are conically shaped.
Bevel gears are most often mounted on the shafts that are 90 degrees
apart, but can be designed to work
at other angles as well.
By increasing or decreasing the ratio
of teeth between the drive and driven
wheels the rotational drive and torque
of second wheel can be changed in
relation to the first.

16. PARTS OF MACHINE- The main parts of the multipurpose machine are:-
MOTOR:-
It is the main prime mover of the
machine which provide motion to
all equipment used in this machine.
In this machine we are using the
motor with following specifications:-
1.0 HP
1400 RPM
220/230 V
50 Hz
5.5 A

17. GRINDING WHEEL:-
A grinding wheel is a wheel composed of an abrasive compound and used for various grinding and abrasive machining operations.
The wheels are generally made from a composite material consisting of coarse-particle pressed and bonded together by a cementing matrix to form a solid, circular shape.

18. CIRCULAR SAW:- A circular saw is a power-saw
using a toothed or abrasive disc
or blade to cut different materials
using a rotary motion spinning
around an arbor.
A circular saw is a tool for cutting
many materials such as wood,
plastic or metal and may be hand-
held or mounted to a machine.

19. DRILL BIT:- Drill bits are cutting tools used
to remove material to create
holes, almost always of circular
cross-section.
Drill bits come in many sizes
and shape and can create
different kinds of hole in many
different materials.

20. BALL BEARING
“Ball bearings” use balls that roll on conformal raceways on the inner and outer rings’ (races) outer and inner surfaces respectively.
By having the raceway closely conform to the ball, rather than rolling on a pure cylinder, orders of magnitude greater load capacity are obtained.
A number of balls or rollers are used and these are held at proper distances by retainers so that they do not touch each other.

21. ADVANTAGES- It can be used for more than one operation.
It is highly efficient machine.
It is most reliable machine.
It required less maintenance.
Low power consumption.
It is cheaper than other machine.
Less man power is required.
Less time consuming.
Size is compact therefore it required less space.

22. LIMITATIONS- It can be used for small work only.
It is a manual machine.
All the machining operations are operated by a single motor so if it will not function properly, all operations get affected.

23. APPLICATIONS-
In The Garage
In Small Industries

24. In Institutes Workshop
For Domestic Purposes

25. FUTURE IMPLEMENTATION
We can perform various operations like cutting, drilling and grinding individually by introducing coupling (engagement and disengagement) between them.
We can perform shaping operation by introducing a shaping tool at the counter shaft.
We can perform boring operation by introducing a boring tool by replacing drilling.
We can change the speed of motor by regulator.
It can be used as a standby unit in industrial field.

26. CONCLUSION-
All the production based industries wanted low production cost and high work rate which is possible through the utilization of multipurpose machine which will less power as well as less time consuming.
In an industry a considerable portion of investment is being made for machinery installation. So by the help of this machine we can perform operations like drilling, grinding and cutting at different working centers simultaneously.
The industrialist have not to pay for machine performing above operations individually which reduces the overall cost of the product produced.

27. THANK YOU