THE ANALYSIS OF STRUCTURES AND CHOICE OF ASSEMBLY-WELDING DEVICES FOR THE MANUFACTURE OF SMALL-SIZED MACHINES FOR THE BUILDING MATERIALS AND STRUCTURES PRODUCTION

Abstract

The results of investigations on the analysis of the design and choice of assembly-welding devices for the manufacture of small-sized machines for the building materials and various purposes production structures are presented. Simultaneously, the ever-increasing requirements to reduce the time needed for the development of new equipment and improve their quality with minimal labour and material costs led to sufficient progress in the development of the design of technological assembly equipment during assembly and welding.

As the analysis and practice have showen in multi-unit production conditions with discrete-unstable production programs for the technical equipment of welding and assembly operations, it is advisable to use universal reusable assembly and welding re-adjustable fixtures instead of one-piece welding device. These devices consist of a set of structurally standardized elements from which various special devices for assembling a variety of welded structures are created by appropriate reusable composing or re-arranging.

The possibility of such linking and re-arranging of the elements of UAD is provided by the high interchangeability and universality of their design. Moreover, the norms and accuracy established by the standards and the relative position of the surfaces of the UAD elements ensure their assembly without tightness and further adjustment.

Assembly and welding devices UAD have significant advantages in accuracy and reliability of manufacture of welding and assembly products of various dimensions and configurations.

It is advisable for the production of machines for the manufacture of building materials and structures to use universal collapsible re-adjustable devices.