CNC Technology

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ABOUT BHEL

BHEL is the largest engineering and manufacturing enterprise in India in the energy-related / infrastructure sector, today. BHEL was established more than 40 years ago, ushering in the indigenous Heavy Electrical Equipment industry in India – a dream that has been more than realized with a well – recognized track record of performance. The company has been earning profits continuously since 1971-72.and paying dividends


PRESENT POSITION OF B.H.E.L.

At present B.H.E.L. have 14 manufacturing units. The major units are B.H.E.L. – Bhopal, B.H.E.L.–Hyderabad, B.H.E.L. – Triuchy, and B.H.E.L. –Hardwar. The corporate office is situated in New–Delhi and provides necessary top management
Leadership, direction, strategic-planning and operational and management support services. It also coordinates the activities, function of various manufacturing, service divisions and numerous other functional and product groups. It also looks after the
long – term planning in regards to resource and marketing and also planning for marshaling of human, physical and financial resources.



Manufacturing Facilities:-
HEEP Haridwar plant is equipped with most modern and sophisticated machines tools, facilities and test equipment to manufacture and test generators upto 1000 MW rating, which include.
1) Most modern micalastic insulation plant for stator bars.
2) Over speed and vacuum balancing tunnel.
3) Kollmann rotor slot milling machine upto maximum barrel length of 7000 mm, barrel diameter of 1800 mm and rotor weight of 225 tones.
4) Two computerized test beds to test large size generators upto 1000 MW.
5) Wotan CNC horizontal boring maching.
6) Center lathe machine upto maximum length of 16 m and diameter of 3.15 m.
7) Insulation life endurance test assessment facility.
Beside these, HEEP has also set up a Generator Research Institute with an objective to develop basis know-how and know-why through experimental studies for reliable, efficient and optimum design of generators and improve their performance in service.


ADVANTAGES OF CNC MACHINES

Higher flexibility
Increased productivity
Consistent quality
Reduced scrap rate
Reliable operation
Reduced non productive time
Reduced manpower
Shorter cycle time
High accuracy
Reduced lead time
Just in time (JIT) manufacture
Automatic material handling
Lesser floor space
Increased operation safety
Machining of advanced material

Speed Control Unit

This unit acts in unison with the CPU for the movement of the machine axes. The CPU sends the control signals generated for the movement of the axis to the servo control unit and the servo control unit convert these signals into the suitable digital or analog signal to be fed to the machine tool axis movement. This also checks whether machine tool axis movement is at the same speed as directed by the CPU. In case any safety conditions related to the axis are overruled during movement or otherwise they are reported to the CPU for corrective action.