Cutter with function of decoupling temperature of turning area

Abstract

The invention discloses a cutter with a function of decoupling the temperature of a turning area. The cutter comprises a turning cutter bar and a blade arranged on the turning cutter bar, wherein two test micro blind holes are formed in the blade and used for accommodating high temperature fiber gratings; one blind hole is positioned under the front surface of the cutter; the other blind hole is positioned in the blade, and the bottom of the blind hole tightly leans against a cutter point; the axis of one blind hole is perpendicular to a cutting edge, the distance between the bottom of the blind hole and the cutting edge is 0.2 to 0.8mm, the distance between the blind hole and the front surface is 0.5 to 1.2mm, and the blind hole deviates from the cutter point by 1 to 1.5mm and is used for testing the temperature distribution of a cutter scrap contact surface; and the distance between the other blind hole and the external surface of the cutter point is 0.2 to 0.5mm, an included angle between the axis of the blind hole and the front surface is 20 to 30 degrees, and the blind hole points to the inside of the blade. The cutter can realize multi-point measurement in the turning micro area, is high in dynamic property, micro area test property, dynamic temperature display property and test accuracy, and can well decouple heat generated in a cutting micro area.

Description

technical field [0001] The invention belongs to the precision machining technology, and in particular relates to a cutting tool with a temperature decoupling function in a turning area. The cutting tool uses a high-temperature optical fiber grating to realize multi-point testing in the micro-area of ​​the turning area. Background technique [0002] There are two main heat source areas in the turning process, namely the first heat source and the second heat source, also known as the shear band heat source and the chip contact heat source. According to theoretical analysis, the first heat source has little influence on the temperature distribution of the tool rake face, but has a greater influence on the position of the tool tip. The second heat source has a greater impact on the chip contact surface, but less on other areas of the tool. Therefore, if the first and second heat sources can be tested in real time and accurately, it will have a great impact on the design of key p...

AI Technical Summary

Problems solved by technology

These methods have their own advantages and disadvantages. The galvanic couple method is direct, simple, and reliable in data, but it has the problems of high difficulty in arranging the galvanic couple and poor measurement dynamic response. Infrared and other non-contact test methods have short response time and large measurement range but have environmental requirements. Higher, difficult to select the measurement position and poor accuracy

In addition, summarizing the above test methods, the common disadvantage is that the cutting temperature of the test is the average temperature, and the decoupling test of the temperature in the turning area cannot be performed.

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