DESIGN AND FABRICATION OF SLITHERING RAM BY USING QUICK ARRIVAL MECHANISM

Abstract

Quick Return Mechanisms (QRMs) are one of the essential accessories used in
machine tools which involve reciprocating cutting action with a quick return stroke and a
constant angular velocity of driving crank. The aim of this work was to simulate, design and
construct a prototype of a QRM that can be used for demonstration and instrumentation. The
QRM was simulated using Solidworks and a prototype was developed from the simulated results.
The experiment was conducted using the prototype. The kinematic simulation of the Solidworks
model was compared with the kinematics of motion of the prototype. The result showed that the
Percentage Stroke Length error was 0.36%. It was observed that, there was no significant
difference in the simulated and experimental results, hence, the prototype can be used for
demonstration and experimentation to assist students in understanding basic principles of the
machine operation. Keywords: quick return mechanism, solid-work model, prototype, kinematic
simulation, stroke length, machine operation.