Tool-checking device in a workpiece processing machine
A technology of cutting tools and rotating tools, applied in metal processing mechanical parts, manufacturing tools, metal processing equipment, etc., can solve problems such as affecting the accuracy of measurement results
Active Publication Date: 2021-06-04
BLUM NOVOTEST
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- Description
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- Application Information
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Problems solved by technology
[0012]Interference caused by coolant or chips can affect the accuracy of the measurement results
Previous measurement methods could not reliably filter or remove such interference from the measurement results
Method used
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Embodiment Construction
[0063] attached figure 1 A device for measuring a tool WZG having at least one cutting edge or cutting edge K, which is accommodated in a workpiece processing machine, is schematically shown. The device has a measuring device MV with a laser transmitter LS designed to emit a measuring beam MS and a laser beam receiver LE precisely aligned with said laser transmitter LS. When there is a corresponding control signal on the laser transmitter LS for controlling the laser output PLS, the laser transmitter LS is designed to send the measuring beam MS to the laser beam receiver LE for the tool WZG non-contact scanning. The laser beam receiver LE is designed to output a signal S1 which represents the degree of obscuration of the measuring beam MS during the scanning of the tool WZG with the measuring beam MS. The representative signal S1 has a continuous value range WB with an upper limit OG and a lower limit UG. For reliable evaluation of representative signal S1 in control and e...
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The invention relates to a method for checking a tool using a device with a light emitter for emitting a beam in order to scan the tool and with a beam receiver for receiving the beam and for outputting a shadow signal and using an analysis device for processing the shadow signal. The method has the steps of rotating the tool; moving the tool until a starting position is reached in which the blade is immersed into the beam and produces a shadow such that a threshold of a range of the analysis device is reached or undershot; moving the tool out of the beam starting from the starting position and detecting the shadow signal; and ascertaining that the shadow signal does not fall short of the lower switching threshold or exceed the upper switching threshold for a blade such that a shadow signal lies above the lower switching threshold and below the upper switching threshold; wherein the feed is determined in proportion to a measurement range depending on a transverse measurement such that a blade produces a shadow signal at different positions during a rotation, and during each rotation, the shadow signals are offset to one another in a manner corresponding to the delay and spatial change of the tool and are superimposed in order to form one shadow signal.
Description
Background technique [0001] A method and device for inspecting / measuring tools is described herein. The details are defined in the claims; however, the description and drawings also contain relevant information about the structure and mode of operation, as well as about the variants of the method and about the elements of the device. [0002] To realize the apparatus aspects and to implement the method aspects, a tool may be accommodated in a workpiece processing machine for rotation and translation relative to the workpiece. The workpiece processing machine may be a (numerically controlled) machine tool (NC machine tool), a (multi-axis) machining center, a (multi-axis) milling machine or the like. The term "machine tool" is also used below for all these machines or such machines. Such machines have a spindle on which a tool or workpiece is mounted. For example, the spindle can be fixedly positioned within the workspace of the machine or moved in three orthogonal directions...
Claims
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IPC IPC(8): B23Q17/24
CPCB23Q17/2466B23Q17/2461B23Q17/2485G05B19/402G05B19/401G05B19/404G05B2219/37415G05B19/4065B23Q17/22B23Q17/24G05B19/18B23Q17/00G01B11/08G01B11/02G01B11/2433
Inventor S·斯托伯B·里德
Owner BLUM NOVOTEST