In this volume, we will look at an automation clever mechanisms that converts rotary motion into oscillating motion in the horizontal direction.

[Fig.1] is a typical diagram of this mechanism. The basic mechanism design is explained by using this mechanism.

When a crank (1) is connected rotating around the 0 axis (drive shaft) to another crank (3) that will swing around the other rotation shaft called the 0' axis using a connecting link (2) in the link mechanism, the crank (3) starts swinging from side to side as the crank rotates around the 0 axis by one turn. At this time, the swinging range of the crank (3) (from point A to B) is determined by the position where the crank (1) and the connecting link (2) are arranged in a straight line.

In [Fig.1], the two components are arranged in a straight line at point a. The swinging crank (3) inverses its motion after reaching point A located on the right edge. Again, they are arranged in a straight line at the point b, which determines the swinging range point B.

[Fig.2] is the conversion mechanism with an adjusting screw, allowing quick adjustment of the swing angle. This mechanism is useful for performing position control during operation or designing a simple structure compatible with various models.

Tips on selecting appropriate standard components

The parts (1) through (3) shown in [Fig.1] can be assembled by the MISUMI FA mechanical parts. For parts listed in [Fig.2], the MISUMI FA mechanical parts for (3) connecting link can be used if an alteration to the slotted hole is made.

Next time, we will be studying the mechanisms of converting uniform rotary motion into intermittent rotary motion (at irregular intervals).