THE MODEL OF THERMAL DEFORMATIONS SPINDLE ASSEMBLY DRILLING MACHINE
Background. Thermal deformation of the spindle units that occur in the process of cutting machines, can have a significant influence on the machining accuracy. This is especially important for precision machine tools. Estimated values of thermal deformation at the design stage of the machine equipment is a complex task and its solution is possible only with the use of specialized software. The objective was to evaluate the use of the software package, Solid Works and applications Simulation for calculating the thermal deformation of the spindle nodes mills in the course of their work. Materials and methods. Developed a method of creating three-dimensional solid model spindle units and the sequence of calculations of thermal strains in the transition and steady-state periods of operation of the machine equipment. Methods of calculation of heat transfer by convection and radiation. Results. Calculation of temperature deformations spindle assembly boring machine. It was found that after working for 1.5 min dependence of the change of temperature deformations from time becomes linear, which can be used for automatic correction during processing. Conclusions. The possibility of the application of the software package, Solid Works and application Simulation to calculate the temperature deformations spindles of machine tools in their work. Modeling the thermal deformation allows to determine the degree of their influence on the error handling and assign activities to reduce their impact on its accuracy.