Page 132 - rise 2017

III. Planetary DC Geared Pleanetary geared motor was chosen because of higher
Motor (45mm) 32.5:1 efficiency and less backlash. The function of the motor
is to lifting the weight of hammer. The features of the
motor is using 24VDC, no load current (A) : < 0.45, no
load speed (r.p.m): 185 ± 10%, rated load torque (kgf.cm)
: 18, rated current (A) : < 3.5, rated load speed (r.p.m) :
148 ± 10% and the of motor is weight 680g.

IV. M12 Inductive Proximity Cylindrical inductive sensor is sensing range up to 4mm.
Sensor Inductive proximity sensors are noncontact proximity
devices that applied to detect metal objects which is in our
project it is as safety element during operating this
machine. The machine only can be running when the
sensor detected metal slider and producing warning
alarm. Advantages of inductive proximity sensors include
insensitivity to water, oil, dirt, non-metallic particles,

target color, or target surface finish, and the ability to
withstand high shock and vibration environments.

The precision of mechanical component fabrication is to ensure the imprint of the puncher on
the metal plate is clear and uniform. The importance of the mechanical parts is explained in the table
II below:

Table II
Mechanical Components
Mechanical Part Description
I. Main Body The fabrication of the main body is consisting of solid
round carbon steel bar and solid square carbon steel bar. In
the main body of the prototype also attached a weight as a
hammer to produce enough stress on punchers. The weight
of the hammer is approximately 8kg.

II. Metal Slider Metal slider is making by using stainless steel plate
because it more esthetic, tough, ductile with cryogenic and
high temperature strength properties. The function of metal
slider is to lock punchers and workpiece (metal plate) when
the hammer hit the punchers.