刃磨大锯片齿部时,以锯片本身齿来分度定位,误差较大。因为锯齿定位时开始用未磨齿定位,而后用刃磨过的齿定位,所以,齿部同轴度误差大,使用寿命短。后改用分度盘定位(附图),效果较好。把分度盘和大锯片装在磨床轴上,压紧后,以分度盘齿槽定位,调整定位板朱控制锯片与砂轮相对位置。大锯片同轴度误差 Sharpening a large saw blade tooth, the blade itself to the indexing positioning teeth, greater error. Because the sawtooth positioning started with unslotted positioning, and then use sharpened tooth positioning, so the tooth coaxial error, short service life. Sub-dial after the switch to positioning (with photos), the effect is better. The indexing disc and a large saw blade mounted on the grinder shaft, pressed, the indexing cog positioning, adjust the positioning plate Zhu control saw blade and the relative position of the wheel. Large saw blade coaxial error