| 摘要 |
The system, for numerical control work, effects automatic compensation for variation in tool dia. in profiling work with a tapered tool along a varying width surface. The tool radius (r) at a given height (h) from the tool tip is determined and the radius (r') at any other height (Z) from the tool tip is defined by a formula contg. the given radius and height, the new height and the tool taper angle (a) as follows, r'/r + (Z+h) tan a. When the tool is machining e.g. a surface (CS1) that is normal to a top surface (CSe) and is of varying width (Z1, Z2....), the tool radius formula and previously stored data on the required finished profile are used to cauculate requisite tool offset at defferent points on along the machined surface. |
