The present invention discloses an easily detachable dust-proof scribing wheel, which comprises a tool post and a scribing wheel support, wherein: the tool post comprises a locating slot rack, a flange bearing, a spacing ring and a bearing in turn from top to bottom; the scribing wheel support comprises a scribing wheel, an axle and a holder, wherein the scribing wheel is connected with the holder via the axle, and the scribing wheel support is set in a locating slot of the locating slot rack; the lateral side of the locating slot rack is provided with a stopping part, which comprises a lateral chucking unit and an axial chucking unit. By employing a scribing wheel support that can only be mounted and detached integrally, the time required for replacing a scribing wheel can be reduced apparently, the blocking of the tool post by the dust during a cutting process may be avoided by employing a inserted dust cap; moreover, by employing a design of lateral chucking and axial stopping, the mounting stability of the scribing wheel support in the tool post can be improved apparently, and the operational reliability of the scribing wheel can be optimized. Figure of Abstract : Fig. 1
展开▼
