The invention discloses a method for generating interference-free flat-
end milling cutter process path along the
ridge direction of transitional surfaces. The method comprises the following steps: (1) initial
machining tool path is set, a tool is
processing along the ridges of transitional surfaces, a current tool contact is calculated to obtain effective curvature of the
machining tool at the tool contact; (2) curvature interference analysis of transitional surface
machining is carried out according to the effective curvature of the machining tool at the tool contact, tool bottom interference is analyzed, and the angle of the tool is deflected at the tool contact to obtain interference-free tool posture; (3) parameter calculation is carried out on the adjusted
tool path so as to obtain step-length and
cut row distance; and (4) adjacent
tool path lines are calculated, including calculation of adjacent tool contacts and calculation of tool
location data, and interference-free tool path is finally obtained. By the method, automatic planning of interference-free tool path can be realized; large
cut row distance is obtained;
cutting efficiency is high; machining
surface roughness is low; surface fairness is good; and problems of low
cutting efficiency, poor machining surface quality and the like by machining of a ball-
end milling cutter are solved.