DefinePK

Abstract

Load capacity of the spindle connection with a tool holder is one of the indicators limiting productivity of the machine tools. Common shortcomings of works devoted to the connection of the spindle tool holder by standard HSK consist in the absence of a systematic description of processes in these connections when the load changes and considerable variation in estimates of the load limit beyond which the connection fails. Experimental observation these effects is difficult, therefore, the study of load capacity and rigidity was carried out by FEM simulation for sizes HSK-A40, HSK-A63 and HSK-A100. The causes and the scheme of the failure are studied in detail. For each testing standard size tool holder was defined value of critical load. A relationship was established between the force and displacement.