Method and device for testing a cutting-edge geometry of a rotatably drivable tool
AssigneeBlum-Novotest GmbH
InventorsHeribert Bucher, Bruno Riedter
Life of this patent
Estimating the term…
Abstract
The testing of a cutting-edge geometry of a tool takes place during time intervals that comprise time instants at which it is to be expected that a region, to be tested, of the tool enters a measuring beam. At time instants at which the tool does not enter the measuring beam, no measurements are performed, which increases the reliability of the test and avoids spurious measurements. For this purpose, a measuring system is used that preferably comprises programmable units in order to use the invention flexibly for various machine tools and tools without changing the construction of the measuring system.
Claims45
A method of testing a cutting-edge geometry of a rotatably drivable tool with a measuring system, comprising the following steps:
- definition of a region, to be tested, on the tool,
- rotation of the tool at a chosen constant rotational speed,
- emission of a measuring beam that defines the measuring range,
- positioning of the tool so that an envelope surface, produced by the rotation, of its region to be tested enters the measuring range, and
- detection of signals that indicate interactions of the measuring beam with obstacles in its propagation path,
- synchronization of the measuring system with the rotation of the tool on the basis of the sequence of detected signals, and
- subsequently performing the detection only during chosen detection time intervals that each comprise a standard time instant, each standard time instant being a time instant at which it is to be expected that the region to be tested enters the measuring range during rotation.
A measuring system for testing a cutting-edge geometry of a tool that is adapted to be rotatably driven at a chosen rotational speed, comprising:
- a transmitter for emitting a measuring beam,
- a receiver for receiving the measuring beam and for outputting signals that indicate a received measuring beam,
- an evaluation unit connected to the receiver for receiving signals outputted by the receiver and for generating signals that indicate interactions of the measuring beam with obstacles in its propagation path as a function of the received signals, and
- a control unit for controlling the measuring system,
- wherein
- the evaluation unit evaluates the signals of the receiver only during chosen evaluation time intervals that each comprise a standard time instant, each standard time instant being a time instant at which it is to be expected that the region to be tested enters the measuring range during rotation.
A measuring system for testing a cutting-edge geometry of a tool that is adapted to be rotatably driven at a chosen rotational speed, comprising:
- a transmitter for emitting a measuring beam,
- a receiver for receiving the measuring beam and for outputting signals that indicate a received measuring beam,
- an evaluation unit connected to the receiver for receiving signals outputted by the receiver and for generating signals that indicate interactions of the measuring beam with obstacles in its propagation path as a function of the received signals and
- a control unit for controlling the measuring system,
- wherein
- the receiver receives the measuring beam only during chosen receiving time intervals that each comprise a standard time instant, each standard time instant being a time instant at which it is to be expected that the region to be tested enters the measuring range during rotation.
A measuring system for testing a cutting-edge geometry of a tool that is adapted to be rotatably driven at a chosen rotational speed, comprising
- a transmitter for emitting a measuring beam,
- a receiver for receiving the measuring beam and for outputting signals that indicate a received measuring beam,
- an evaluation unit connected to the receiver for receiving the signals outputted by the receiver and for generating signals that indicate interactions of the measuring beam with obstacles in its propagation path as a function of the received signals and
- a control unit for controlling the measuring system,
- wherein
- the transmitter emits the optical measuring beam only during chosen transmission time intervals that each comprise a standard time instant, each standard time instant being a time instant at which it is to be expected that the region to be tested enters the measuring range during rotation.
The measuring system according to claims, 26, 31, 28, characterized in that the measuring beam is a laser light beam.
Dependencies are inferred from the claim text.