| 摘要 |
A pipe cutting apparatus (10), especially for cutting or machining a plastics, resin or soft-metallic pipe (20), comprises a frame (30a, 30b; 32a, 32b) for receiving the pipe (20) to be cut, and cutting means (102) rotatable by externally powered drive means (60) with respect to the pipe (20) to perform a cut, wherein the cutting means (102) comprises a cutting tool (102) carried on a pivotally mounted tool holder (100) and biased into cutting relationship with the outer surface of the pipe (20) by biasing means such as a coil spring (104). The tool holder (100) on which the cutting tool (102) is mounted preferably further comprises means (106) for limiting the maximum depth of a single given cut able to be performed in a single pass by the cutting tool (102) as it is rotated with respect to the pipe (20) held in the frame, as well as limiting means (108) for defining the maximum depth of a plurality of cuts able to be performed by that plurality of cuts of the cutting tool (102) as it is rotated through that plurality of cutting revolutions with respect to the pipe (20) held in the frame. |
