在我们修配工厂里,经常要车制园弧面的工件,如凡而、连杆等。过去加工这些工件时,我们是用手工拨园,再用锉刀或括刀修正,这样不但工件表面粗糙,而且园弧也不够规矩。经谢政之同志和徐瑞庆同志的改进,制作了一个车制凹园弧的刀杆。使用这种刀杆,准确可靠,加工出来的工件弧面匀整,光洁度良好。这刀杆如附图所示:刀杆体1中装有蝸杆轴2,用带有支头螺钉4的紧 In our repair factory, often car park arc of the workpiece, as Fanfan, connecting rod and so on. In the past, when we worked on these workpieces, we manually set aside the park and reworked it with a file or a knife, so that not only the surface of the work piece was rough but also the arc of the park was not good enough. Through the improvement of Comrade Xie Zhengzhi and Comrade Xu Ruiqing, a carpenter’s arbor has been made. Use this arbor, accurate and reliable, processed out of the workpiece arc uniform, good finish. This knife as shown in the drawings: knife rod body 1 is equipped with a worm shaft 2, with a tight head screw 4