This document summarizes a student group's journey to learn about electromagnets in CNC machines at Jyoti Automation. They started by learning the basic mechanisms of CNC machines. They then learned about how the CNC panel is connected and the importance of components like connectors, relays, triacs, and servo motors. Induction motors were used for job works and rotating drilling arms, while electromagnetic clutches engaged and disengaged the job piece. Finally, servo motors were used for position control of jobs and arms in a closed-loop feedback system. The students' journey provided hands-on learning of key components in CNC machines like motors, clutches, and position control systems.

1. Journey of finding
electromagnet in jyoti
automation cnc pvt. Ltd.
GUIDED BY: –
PROF. NIRAV MEHTA
PREPARED BY
 KRUNAL MAKWANA
(12EE36)
NIMESH KATARIYA
(12EE40)
 HARSH SHIHORA

2. WE STARTED OUR JOURNEY AT UNIT-3
OF JYOTI CNC WHICH IS ASSEMBLY UNIT
OF CNC MACHINES

3. PLATEFORM-1

4. SIR WAS
UNDERSTANDIN
G US ABOUT
BASIC
MECHANISM &
WORKING OF
CNC MACHINE

5. PLATEFORM - 2

6. SIR WAS CLEARING OUR CONCEPT ABOUT CONNECTION OF CNC PANEL.ALSO
TELLS ABOUT IMPORTANCE OF CONNECTORS ,RELAY,TRIAC AND SERVO MOTOR

7. JUNCTION-1
MOTOR
WINDING
(ELECRTOMA
GNET)

8. PRINCIPAL OF OPERATION:-
• induction and synchronous motors, the AC
power supplied to the motor's stator creates a
magnetic field that rotates in time with the AC
oscillations. Whereas a synchronous motor's
rotor turns at the same rate as the stator field, an
induction motor's rotor rotates at a slower speed
than the stator field. The induction motor
stator's magnetic field is therefore changing or
rotating relative to the rotor. This induces an
opposing current in the induction motor's rotor,
in effect the motor's secondary winding.

9. INDUCTION
MOTORS
WERE USED
FOR JOB
WORKS IN CNC
MACHINE. IT
IS USED FOR
ROTATES THE
DRILING ARM
OF CNC
MACHINE

10. MAIN ASSEMBLY
UNIT
CRAINS
(INDUCTION
MOTOR
WERE USED)

11. IT WAS USED FOR
ENGAGE &
DISENGAGE JOB
PIECE
• Electromagnetic clutch
JUNCTION-2

12. Electromagnetic
clutches operate
electrically, but
transmit torque mecha
nically
The electromagnetic
clutch is most suitable
for remote
operation since no
linkages are required to
control its engagement.

14. It has fast, smooth operation.
However, because energy
dissipates as heat in the
electromagnetic actuator every
time the clutch is engaged,
there is a risk of overheating.
Consequently the
maximum operating
temperature of the clutch is
limited by the temperature
rating of the insulation of the
electromagnet. This is a major
limitation. Another
disadvantage is higher initial
cost.

15. How it works
Engagement
When the clutch is actuated,
current flows through the
electromagnet producing a
magnetic field. The rotor portion
of the clutch becomes magnetized
and sets up a magnetic loop that
attracts the armature. The
armature is pulled against the
rotor and a frictional force is
generated at contact. Within a
relatively short time, the load is
accelerated to match the speed of
the rotor, thereby engaging the
armature and the output hub of
the clutch. In most instances, the
rotor is constantly rotating with
the input all the time

16. • Disengagement
•
When current is removed from the clutch, the
armature is free to turn with the shaft. In most
designs, springs hold the armature away from
the rotor surface when power is released,
creating a small air gap.

17. Cycling
• Cycling is achieved by interrupting the current
through the electromagnet. Slippage normally
occurs only during acceleration. When the clutch
is fully engaged, there is no relative slip,
assuming the clutch is sized properly, and thus
torque transfer is 100% efficient.

18. JUNCTION-3
SERVO MOTOR
IT WAS USED IN
CNC MACHINE
FOR POSITION
CONTROL OF
JOB AND ARMS
IN CLOSED LOOP
FEEDBACK
SYSTEM

19. • A servomotor is
a rotary actuator that
allows for precise
control of angular
position, velocity and
acceleration. It
consists of a suitable
motor coupled to a
sensor for position
feedback.

20. Servomotors are not a
specific class of motor
although the
term servomotor is often
used to refer to a motor
suitable for use in a closed-
loop control system.

21. Mechanism
As the name suggests, a
servomotor is
a servomechanism. More
specifically, it is a closed-
loop servomechanism that
uses position feedback to
control its motion and
final position. The input to
its control is some signal,
either analogue or digital,
representing the position
commanded for the output
shaft.

22. END OF
JOURNEY
FOR THIS
SEASON

23. •THANKYOUFORWATCHING
THISVIDEO