Automatic warning device for numerical control cutting tool wear

Abstract

The invention discloses an automatic warning device for numerical control cutting tool wear. The automatic warning device comprises a temperature sensor (2), a resistance-voltage conversion circuit (3), an NC processor (4) and a warner (1). The temperature sensor (2) is used for collecting a temperature value of a cutting area, the temperature value is compared with a warning temperature threshold value set for the NC processor (4) in advance and a machining stopping temperature threshold value so that automatic warning of tool wear can be achieved, when operating personnel do not stop the device in time to replace a tool after automatic warning and the temperature value of the cutting area exceeds the machining stopping temperature threshold value, a numerically-controlled machine tool is required to be shut down by the NC processor (4), an alarm is continuously given to notify the operating personnel of subsequent processing, and thus the situation that due to labor misjudgments, production efficiency is reduced or surfaces of machined materials are burnt or strained is avoided and even the scrap problem is avoided; the automatic warning device can also be shut down automatically when the operating personnel do not stop the device in time to replace the tool, and the tool is to be replaced by the operating personnel.

Description

technical field [0001] The invention relates to an automatic alarm device for cutting tool wear in numerical control cutting. Background technique [0002] To replace worn tools in the process of CNC cutting, operators usually rely on the operator to observe the shape of chips during machining, judge the wear degree of the tool, and judge whether to stop the machine to replace the tool based on experience. Since the experience of the operator is uncontrollable, misjudgment is prone to occur, making Premature shutdown to replace the still usable tools reduces production efficiency; or failure to stop in time to replace worn and unusable tools will cause burns or strains on the surface of the processed material, or even be scrapped. Contents of the invention [0003] In order to solve the problems existing in the prior art that it is necessary to manually judge whether the cutting tool is worn or not during the cutting process, it is easy to make a wrong judgment when the ma...

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Problems solved by technology

[0003] In order to solve the problems existing in the prior art that it is necessary to manually judge whether the cutting tool is worn or not during the cutting process, it is easy to make a wrong judgment when the machine is stopped for replacement, resulting in a decrease in production efficiency or causing burns or strains on the surface of the processed material, or even scrapped. Provided CNC cutting tool wear automatic alarm device

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