Patent ID: 9440328
Filing Date: 2016-09-13
CPC Classification: B23F,B24B

Claim Text:
1. A method for ascertaining topography deviations of a dressing tool, which is mounted so it is rotationally drivable about a dressing axis in a CNC-controlled machine, which comprises a dressable grinding tool, which is chucked on a tool rotational axis, wherein the dressing tool has a target geometry, and wherein the dressing tool has an actual geometry, which deviates from the target geometry, after a dressing of the grinding tool in the machine, comprising: (a) executing a predefined relative movement of the dressing tool in relation to the grinding tool, wherein during the execution of the relative movement, at least one contour region of the dressing tool is transferred into a transfer region of the grinding tool; (b) providing a plunging body made of material which can be ground in the machine; (c) executing a relative infeed movement, to move the transfer region of the grinding tool into the vicinity of the plunging body; (d) executing a rotational movement of the grinding tool about the tool rotational axis; (e) executing a predefined, relative plunging movement, to plunge the transfer region of the grinding tool into the material of the plunging body, wherein during the execution of the plunging movement, a transfer of a topography of the transfer region into an imaging region of the plunging body in the form of a negative topography is performed; (f) carrying out an automated scanning movement of the negative topography of the plunging body in the imaging region using a coordinate scanning sensor; (g) transmitting scanning signals from the coordinate scanning sensor to a computer; and (h) computationally ascertaining, by means of the computer, at least one item of coordinate information, and determining a statement about the actual geometry of the dressing tool.