Laser processing device and laser processing method using tool of the laser processing device

Abstract

The invention provides a laser processing device and a laser processing method using a tool of the laser processing device, the laser processing device obtains high size precision via laser processing according to moving and rotating states of tools, etc. A device performing processing via irradiating laser light (L) to a waiting-to-be-processed image (I) is provided with: a laser illuminating mechanism (2) performing illuminating upon the waiting-to-be-processed image (I) via oscillating the laser light according to input trigger signals; a moving mechanism (4) capable of keeping the waiting-to-be-processed image at a rotary shaft (6a) to make the rotary shaft move or rotate, when a moving displacement amount of a moving objective table or a rotating displacement amount of the rotary shaft (6a) is outputted as coder signals; and a trigger signal generation circuit part (5) outputting trigger signals to the laser illuminating mechanism according to set counting amount while counting encoder signals.

Description

Technical field [0001] The present invention relates to a laser processing device suitable for processing cBN tools and the like and a laser processing method of a tool using the laser processing device. Background technique [0002] Generally, cBN tools using cBN (cubic boron nitride) sintered bodies as ultra-high pressure sintered bodies are processed into a sheet shape by electric discharge machining of the cBN sintered body, and then brazed to the tool base material by a precision grinding device Further shape it as a cutting blade tool. When a very small blade tool is fixed to a precision grinding device and polished, since the tool itself is small, there are problems such as a drop in dimensional accuracy due to peeling from the brazed part, chipping, or looseness when contacting the grinding wheel. [0003] Conventionally, as a method of processing tools other than a precision polishing device, for example, Patent Document 1 proposes a method of forming recesses in the shap...

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Problems solved by technology

[0006] That is, in the laser processing technology of the above-mentioned conventional tools, since the usual general laser processing machine is used, not only the device itself, such as a large-scale motor capable of high-speed rotation, is large and the cost is high due to difficulty in control, etc., but also the processing machine When the stage or each axis starts to accelerate after operation or decelerates when stopped, the laser light is excessively irradiated, and the processed surface becomes rough, and sufficient dimensional accuracy cannot be obtained.

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