Design of skotch yoke with detailed sketch

Increasing the productivity is one of the main requirements of production engineering in any kind of manufacturing industry. Either by reducing the operation time or by improving the capability of the machine to produce the components in an increased number at the same time is very essential for an industry to achieve the same. This project employs the Scotch yoke mechanism in power hacksaw machine which enables it to cut two components at a time thereby improving the productivity. In todays world time a machine should be less time consuming. Power hacksaw cut one piece at one time so there was a loss in production rate. Double acting power hacksaw overcome this time consuming problem. Power hacksaw is a fine tooth power saw with blade held under tension in the frame. Double acting power hacksaw cuts two material simantaneously by its scotch yoke mechanism, so the production rate increase twice then that of power hacksaw. Double acting power hacksaw works under by the scotch yoke mechanism. The scotch yoke mechanism convert the rotary motion into the reciprocating motion. The machine
Rpm of the motor: Generally it 960 rpm or 1440 rpm. You have to specify to the manufacturers.

The Scotch yoke (also known as slotted page link mechanism[1]) is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa. The piston or other reciprocating part is directly coupled to a sliding yoke with a slot that engages a pin on the rotating part. The location of the piston versus time is a sine wave of constant amplitude, and constant frequency given a constant rotational speed.

This setup is most commonly used in control valve actuators in high-pressure oil and gas pipelines.Although not a common metalworking machine nowadays, crude shapers can use Scotch yokes. Almost all those use a Whitworth linkage, which gives a slow speed forward cutting stroke and a faster return.It has been used in various internal combustion engines, such as the Bourke engine, SyTech engine,and many hot air engines and steam engines