HIGH SPEED HACKSAW USING QUICK RETURN MECHANISM

Abstract

A quick return mechanism is an apparatus that converts circular motion (rotating motion following a circular path) into reciprocating motion. (repetitive back-and-forth linear motion) in presses, hacksaw machines and shaping machines, which are utilized to shape stocks of metal into flat surfaces, throughout mechanical engineering. The quick return mechanism is the foundation behind the energy of these machines. The mechanism consists of an arm attached to a rotating disc that moves at a controlled uniform speed. The design of this mechanism specializes in vector calculus and the physical aspects of kinematics. The link rod is connected with the hacksaw frame. When the fly wheel is rotated, the link rod moves back and forth. During the forward movement, the rod goes slow and during the backward movement, the rod returns fast. Thus the hacksaw moves back and forth with the link rod.

Existing System

Proposed System

Architecture

Block Diagram

Line Diagram