Rotational cutting tool state multiple parameter overall assessment method based on image identification

A technology for comprehensive evaluation of rotating tools, applied in manufacturing tools, measuring/indicating equipment, instruments, etc., which can solve the problem that the dynamic measurement of tools cannot be achieved, the depth of tool surface wear cannot be obtained, and the multi-parameter comprehensive evaluation method of the state of rotating tools has not yet been found. And other issues

Inactive Publication Date: 2010-06-30
上海诚测电子科技发展有限公司
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Problems solved by technology

According to the measurement method provided by this invention, it can be seen that it uses digital image processing methods to locate the precise coordinate position of the edge of the tool image, and calculates the precise geometric parameters of the tool, so that the envelope of the edge of the tool to be measured can be obtained. The purpose of accurate measuremen

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  • Rotational cutting tool state multiple parameter overall assessment method based on image identification
  • Rotational cutting tool state multiple parameter overall assessment method based on image identification
  • Rotational cutting tool state multiple parameter overall assessment method based on image identification

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[0016] The following embodiments are provided in conjunction with the accompanying drawings and the content of the method of the present invention:

[0017] This example is carried out on a domestic VMC850 vertical machining center, and the tool to be tested is a special boring tool for machining centers produced in Germany. The hardware configuration of the image measurement system is shown in Table 1, and the basic structure is shown in Figure 1. It mainly includes optical imaging system: CCD camera, focusing lens, laser light source, etc.; mechanical motion system: tool, workpiece and its spindle drive control device ; Image acquisition system: image acquisition card, angle sensor, synchronization control card and computer, etc. According to the composition principle in Figure 1, in the gap between workpiece loading and unloading or tool retraction (the spindle is still rotating at high speed), the transient image of the boring tool at a certain fixed angle position is phot...

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Abstract

The invention discloses a rotational cutting tool state multiple parameter overall assessment method based on image identification, belonging to the technical field of electronic measurement. The concrete steps are as follows: a reliable and clear cutting tool surface image is obtained by high speed rotational cutting tool transient image capture based on CCD; calculating the abrasion area of the surface of cutting tool by utilizing cutting tool image abrasion zone partition of a support vector machine to assess abrasion degree of cutting tool; performing three-dimensional image reconstruction to cutting points of the cutting tool to obtain most of parameter values reflecting abrasion degree of cutting tool; and extracting textual features of the image on surface of a workpiece to indirectly obtain abrasion degree of cutting tool. The invention aims to realize exact and quantitative digital characterization of abrasion state of the rotational cutting tool by fusing and comparing a plurality of parameters.

Description

technical field [0001] The invention relates to an intermittent on-line detection method based on image recognition, in particular to a multi-parameter comprehensive evaluation method for the state of a rotating tool based on image recognition. Used in the field of electronic measurement technology. Background technique [0002] In the process of modern machining, the wear or damage state of the tool directly affects the final machining quality of the part to a large extent. There are two main failure forms of cutting tools in the process of machining: breakage and wear. For brittle tools, breakage is prone to occur during intermittent cutting or cutting difficult-to-machine materials; tool wear is a gradual process. The change is relatively slow. In the conventional cutting process, the worker can estimate the degree of tool wear or damage according to the vibration or noise of the machine tool and the cutting state; but in the automatic processing process, the system need...

Claims

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Application Information

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IPC IPC(8): B23Q17/09B23Q17/24G01B11/24G01B11/26
Inventor 张永宏
Owner 上海诚测电子科技发展有限公司
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