Analysis of the combination of the slider-crank and cam mechanism to drive the automatic bandsaw blade grinder

Abstract

A slide crank and cam mechanism can be combined and used to drive a bandsaw blade grinder. The movement of these mechanisms must ensure a harmonious combination to avoid the impacts of a collision and dynamic load that appears on the cam and roller surfaces. The technical parameters can be determined by methods of geometry, or 3D simulation, or analytical methods. In order to flexibly design the cam and slide crank mechanism, this study uses the analytic method. By setting up mathematical formulas and applying Mathcad software, it allows to quickly determine and change the initial parameters of the mechanisms, evaluates their changes to the stroke and structural profile. Simultaneously, the graphs of the stroke, velocity, and acceleration of the cam mechanism allow the designer to evaluate and select suitable parameters.