Tool Path Planning of Double-Sided Collaborative Machining for Propeller Blades
Double-sided symmetrical machining can solve problems such as machining vibration and de-formation in single-sided machining of propeller blades through auxiliary support on both sides.However,the complex surface shape of the blades makes it impossible to fully achieve double sided symmetrical ma-chining.Therefore,a double-sided collaborative machining method is proposed in this paper,and its tool path planning algorithm is investigated.The algorithm divides the blade surface into four regions by introdu-cing two partition parameters:tip region,internal region,variable region,and edge region.Four machining methods are used for different regions:single-sided machining,symmetrical machining,variable misplace-ment machining,and non-variable misplacement machining.Six key processing points are used to plan and design the double-sided collaborative processing process.In the variable region,the S-type speed change of single-sided tool is achieved through Sigmoid speed change curve,then the conversion between the symmet-rical machining and the misplacement machining is accomplished.Finally,comparative data was obtained through machining experiments,which showed that double-sided collaborative machining had significant improvements in vibration and deformation issues,verifying the feasibility and effectiveness of this method.
NETL
NSTL
万方数据
维普
