Method for monitoring a machine tool, monitoring apparatus, machine tool and computer program product
A technology for controlling computers and machine tools, applied in the field of monitoring machine tool devices and computer program products, and can solve the problem of not finding threads, etc.
Pending Publication Date: 2021-04-02
M 茨威格
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Problems solved by technology
However, no method has been found that can reliably monitor the quality of the tool and thus the quality of the thread cut
Method used
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[0045] figure 1 A numerically controlled machine tool 1 is shown. A workpiece 2 is machined by means of a machine tool 1 . For this purpose, the machine tool 1 has a tool 3 which can be, for example, a tool for cutting threads in the workpiece 2 . The tool 3 is driven by a tool motor 4 which rotates the tool 3 . It should be noted that the tool 3 could also be a drill or a milling head.
[0046] exist figure 1In the exemplary embodiment shown, the tool motor 4 is mounted on a spindle block 5 , which is attached to a spindle 7 , for example via a recirculating ball bearing 6 , and is movable in the direction of the axis of the tool 3 . The spindle 7 is driven via a gear 8 by a spindle motor 9 which rotates the spindle 7 and in this way translates the spindle block 5 along the spindle 7 .
[0047] Both the tool motor 4 and the spindle motor 9 are connected to a control computer 10 . Control computer 10 is a computer that generally includes at least one processor, various s...
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A method for monitoring a machine tool is described, in which the movement of a tool is numerically controlled with the aid of a control computer. The method comprises the following method steps: a reference measurement curve (38) of a monitoring measurement variable, which is related to the movement of the tool, is recorded during a reference movement of the tool controlled by a reference desiredvalue curve (37), a machining measurement curve (32) of the monitoring measurement variable is recorded during a machining movement of the tool (3) controlled by a machining desired value curve (22),wherein a workpiece is machined by the tool with the machining movement, the reference measurement curve (38) and the machining measurement curve (32) are temporally related on the basis of the reference desired value curve (37) and the machining desired value curve (22), and a differential curve (39) of the reference measurement curve (38) and the machining measurement curve (32) is formed and the differential curve (39) is monitored for the exceeding of predetermined limit values. The method can be carried out with the aid of an accordingly configured monitoring apparatus or a machine tooland can be implemented in the form of a computer program product.
Description
technical field [0001] The invention relates to a method for monitoring machine tools in which the movement of the tool is numerically controlled by means of a control computer. [0002] The invention also relates to a device for monitoring a machine tool, a machine tool and a computer program product for carrying out the method. Background technique [0003] A method for producing threads in components is known from DE 10 2016 114 631 A1. In a known method, a thread-forming tool is used which has at its end facing the component a groove-creating area which, when the tool is introduced into the core bore, helps At least one helical groove is formed in the wall of the hole. Behind the groove-creating region, a plurality of thread-creating regions twisted about the tool axis are formed on the tool, into which the thread-creating regions are introduced when forming the groove, that is to say during the groove-creating movement. After inserting the tool into the core hole, th...
Claims
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IPC IPC(8): G05B19/4065G05B19/4062B23Q17/09
CPCG05B19/4062G05B2219/37214G05B2219/37234G05B2219/37391G05B2219/42311G05B2219/50197
Inventor M·茨威格
Owner M 茨威格