THE REGIME CHOICE WITH EFFECTIVE GRINDING BY THE WAY CONTROL INTER-AXIS DISTANCE MACHINE TOOLS

Abstract

The problem of effective grinding of rotating surfaces is to improve the quality and increase productivity, while reducing costs. The problem can be solved by controlling the distance H between of the rotation tool axes with the part on CNC machines and rational choosing of a shape tool. The purpose of the article is to increase the grinding efficiency of the rotation surfaces with the end face of the conical abrasive tool by rational choice of mode parameters when controlling the inter-axis distance machine tools. To achieve this goal, the following research objectives should be solved. Determine the modes of grinding by limiting the kinematic factors. To find the influence of the dependence of the angular spatial orientation of the contact line of the tool and the part on the angle of small taper of its formed fragment by choosing the dimensions of the machine adjustment. To analyze the influence of the relative position and size of the contact area depending on the kinematics and technical requirements for processing. For the first time, the kinematic constraints of the limit value of the projection of the speed of relative motion in the normal direction, which is used as the grinding intensity, taking into account the rotational and translational motions of the feed. The spatial angular position of the contact line of the tool with the part is determined taking into account the dimensions of the machine adjustment, namely, the wheelbase and the angle of the circle profile. The algorithm of definition of modes of deep grinding is established. The graphical dependences of the angles of orientation of the contact line on the angle of editing of the circle and the wheelbase of the machine are obtained. The dependences of the reduction of the radial dimensions of the conical surface of the part during grinding in the direction opposite to the axial feed of the wheel are described. The dimensions of the contact area determine the quality: the length along the axis of the part, the number of passes, and the width - the conditions of heat release and cooling