可编程分体式火炮混合膛线阴极及其独立工作齿控制方法

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可编程分体式火炮混合膛线阴极及其独立工作齿控制方法

本发明提出可编程分体式火炮混合膛线阴极及其独立工作齿控制方法。主要特征是将工作齿作为分立元件与阴极体做成两套独立的既联系又存在相对运动的分体式阴极，阴极前锥体尾部与独立工作齿底面为同心球面，后锥体内置编程器和微电机。加工时独立工作齿在随阴极体作X、Y合成运动的同时，接受由拨轮传递的内置编程器的控制和微电机的驱动，叠加随膛线缠角变化的转动，使工作齿齿长方向始终保持与膛线一致。本发明基于工作齿相对于阴极体的转动，解决了加工变缠角膛线时因刚性工作齿不可能始终与变化的膛线角度一致而造成膛线侧壁过蚀的问题，保证了加工线型精度，开创了从0度起变的变螺旋角螺旋线的数控电解加工方法。

Programmable split-type gun mixed rifling cathode and independent working tooth control method thereof

The invention provides a programmable split-type gun mixed rifling cathode and an independent working tooth control method thereof. The programmable split-type gun mixed rifling cathode is mainly characterized in that a working tooth serving as a discrete component and a cathode body form two sets of independent split-type cathodes which are in relationship and have relative movement, the tail of a cathode front cone and the bottom surface of the independent working tooth are a concentric spherical surface, and a programming unit and a micromotor are arranged in a rear cone; and during machining, the independent working tooth does X and Y resultant movement along with the cathode body, meanwhile, control of the built-in programming unit and driving of the micromotor which are transmitted by a thumb wheel are received, rotation changing along with the rifling angle is superposed, and thus the tooth length direction of the working tooth is always maintained to be consistent with a rifling. According to the programmable split-type gun mixed rifling cathode and the independent working tooth control method thereof, based on rotation of the working tooth relative to the cathode body, the problem that the side wall of the rifling is over-corroded due to the fact that the rigid working tooth cannot always be consistent with the changed rifling in angle when the rifling with the changed rifling angle is machined is solved, the machine linetype precision is ensured, and a numerical control electrolytic machining method for a helical line with the changed helical angle changed from zero degree is created.