| 摘要 |
FIELD: machine engineering, working articles with complex surface profile. ^ SUBSTANCE: method is realized after three-dimensional orientation of tool in the form of cutter and setting its front surface by preset initial angle relative to worked surface before starting planing process. Mutual motion of article and tool is realized during working process according to predetermined program at least along two orthogonal coordinate axes X, Y. When direction of projection of speed vector of relative motion of tool onto plane including coordinate axes changes, spatial position of front surface of tool is varied relative to its previous position in such a way that to keep initial inclination angle of front surface relative to plane that crosses plane including X,Y coordinates and is oriented in parallel to projection of vector of instantaneous speed of tool onto plane including said coordinate axes. In order to realize it, worked article and(or) tool is turned according to angular coordinate C around respective axes oriented normally to plane including coordinate axes and passing through one apex of tool. In order to enhance efficiency and to increase useful life period of tool, at end of each pass tool is turned out by 180°. Simultaneously respective cutting edge of tool is shifted to zone of removed allowance by feed value without contact of cutting edges of tool and its back face with material of article. Then allowance is removed in reverse direction by means of other lateral cutting edge of tool. Planing process is performed in desired range of technological parameters such as tool motion speed, tool acceleration till time moment of achieving target cutting speed of tool, effort acting upon tool in direction of cutting speed vector. ^ EFFECT: enhanced efficiency of planing, increased period of tool useful life. ^ 3 cl, 5 dwg |
