curling machine is a semi-automatic machine designed for carry out the
curling operation of metal rings. This machine is compact with self contained
pneumatic and control panels. An acrylic safety guard closes the fixture
area while the curling operation is in progress. Error free sequential
operation is ensured with the help of positive feedback interlocks interfaced
to the programmable logic controller.
mechanical subsystem consists of a rotating spindle driven by a motor
coupled through clutch-brake unit. The transmission of motor drive is
through ‘V’ groove pulley belt arrangement. The spindle houses
a spring loaded three jaw chuck to hold the component firmly in place
while the curling operation. All these sub assemblies are mounted on a
rigid table structure. The clutch-brake unit, motor are mounted on the
bottom side of the table. Two numbers of hydraulic cylinders actuating
respective curling rollers are mounted on a bridge beam supported by two
legs. The fixtures and the curling rollers are of quick change type.
control system is based on PLC. It takes care of sequencing of all the
operating elements in correlation with the feedback inputs. The control
sub system is suitably supported by the associated basic electrical control
& safety circuits.