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 (12EE45)

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

PLATEFORM-1

SIR WAS UNDERSTANDING US ABOUT BASIC MECHANISM & WORKING OF CNC MACHINE

PLATEFORM - 2

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

JUNCTION-1

MOTOR WINDING (ELECRTOMAGNET)

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.

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

MAIN ASSEMBLY UNIT

CRAINS (INDUCTION MOTOR WERE USED)

IT WAS USED FOR ENGAGE & DISENGAGE JOB PIECE

•Electromagnetic clutch JUNCTION-2

Electromagnetic clutches operate electrically, but transmit torque mechanically

The electromagnetic clutch is most suitable for remote operation since no linkages are required to control its engagement.

 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.

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

•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.

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.

JUNCTION-3SERVO MOTOR

IT WAS USED IN CNC MACHINE FOR POSITION CONTROL OF JOB AND ARMS IN CLOSED LOOP FEEDBACK SYSTEM

•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.

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.

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.

END OF JOURNEY FOR THIS SEASON

•THANK YOU FOR WATCHING THIS

VIDEO