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我厂生产的涂胶机中有两个橡胶涂胶辊,胶辊外径为300mm;长度为2700mm;齿形角40°的左、右旋螺纹,各占全长的一半。最初采用大前角螺纹车刀车削,经常出现撕裂掉口等现象,严重地影响了产品质量,虽经多次改进刀具角度,但效果都不理想。后经多次试验研究设计制造了如附图所示的螺纹车刀。通过实践证明,效果较好,螺纹表面粗糙度也达到了图纸要求。刀具结构:为了便于磨削,把刀具制成由两体组成的,分别焊有YG3硬质合金刀片,具体角度见附图。使用前,首先把内侧平面及45°前刃面磨好,然
I plant the glue machine has two rubber coating roller, rubber roller outer diameter of 300mm; length of 2700mm; profile angle of 40 ° left and right hand thread, each of the full length of the half. The first large-angle thread turning lathe turning, often torn off the mouth and other phenomena, seriously affecting the quality of products, though after many improvements to the tool angle, but the effect is not satisfactory. After several experimental studies designed and manufactured as shown in the figure screwdriver. Proved through practice, the effect is better, the thread surface roughness also reached the drawing requirements. Tool structure: In order to facilitate grinding, the tool made of two bodies, were welded with YG3 carbide blade, the specific perspective, see photos. Before use, the inner plane and the first 45 ° front blade surface grinding good, however