Concepts in Machine Guarding and Safeguarding

Abstract

This paper explores general concepts of machine guarding with emphasis on practical examples. Power transmission motions and their associated hazards are discussed, as is the safeguarding of hazards during machine operation and servicing. The mechanical power press is used as an example of a hazardous machine for which various methods of guarding have been developed. This paper examines current safeguards and safeguarding requirements for the power press. A survey of some common safeguarding devices is presented, with explanations on their application in various situations. Guarding methods for robotic equipment are reviewed. Finally, a risk assessment model is presented with an example of its application in ameliorating the hazards of industrial robots.