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Diamond tool in-situ detection and positioning method

A technology of diamond tool and positioning method, which is applied in the field of mechanical processing, and can solve problems such as inability to perform on-site detection of tool working parameters, difficulty in ensuring accuracy, time-consuming and labor-intensive problems, etc.

Active Publication Date: 2015-06-03
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The domestic self-developed ultra-precision machine tools basically use the trial cutting method for tool positioning, which is not only time-consuming and labor-intensive, it is difficult to guarantee the accuracy, and it is impossible to perform on-site detection of tool working parameters

Method used

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  • Diamond tool in-situ detection and positioning method
  • Diamond tool in-situ detection and positioning method
  • Diamond tool in-situ detection and positioning method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This example figure 1 shown.

[0017] figure 1 Shown is the basic flowchart of the diamond cutter in-situ detection and positioning method of the present invention, figure 2 Shown is a schematic diagram of the optical on-site detection imaging principle of the diamond tool of the present invention. The diamond tool in-position detection and positioning method of the present invention, its basic work flow is: a) fix the imaging system on the machine tool spindle, the relative position of the machine tool spindle and the machine tool X motion axis is fixed; b) utilize the depth of field of the imaging system to realize Positioning of the diamond tool in the height direction; c) After the height direction positioning is completed, adjust the brightness of the light source and the horizontal position of the diamond tool to obtain a clear and complete tool image; d) According to the different types of tools, use the above optical images to measure different geometric para...

Embodiment 2

[0019] This example figure 2 shown.

[0020] figure 2 Shown is a schematic diagram of the optical on-site detection imaging principle of the diamond tool of the present invention. The basic principle of the diamond cutter in-situ detection and positioning method of the present invention is that when the cutter is placed within a certain range near the focal plane 12 of the imaging system 11, a clear optical image can be obtained, and the imaging range 21 is the range of the optical system. depth of field. Using this feature, the imaging system 11 is fixedly installed on the machine tool spindle, and its focal plane 12 is coincident with the axis of the machine tool spindle, and the height of the diamond tool is adjusted to obtain a clear optical image. positioning. The positioning error in the height direction of the diamond tool determined by this method is the depth of field of the imaging system.

Embodiment 3

[0022] This example image 3 , Figure 4 shown.

[0023] image 3 Shown is the schematic diagram of extracting the reference point of the sharp-edged diamond tool of the present invention; Figure 4 Shown is a schematic diagram of extracting reference points for the positioning of the arc-edged diamond tool of the present invention. In the diamond tool in-position detection and positioning method of the present invention, the diamond tool positioning reference point is selected as its positioning reference in the horizontal plane of the ultra-precision machine tool; for the sharp edge diamond tool 22 and the arc edge diamond tool 31, different methods are used to extract Locate the reference point.

[0024] For the sharp-edged diamond cutter 22, the most front-end point of the blade is extracted as the positioning reference point of the diamond cutter. The specific method is to obtain the main cutting edge 23, the minor cutting edge 24 and the intersection point A of the ...

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Abstract

The invention provides a diamond tool in-situ detection and positioning method. The method includes the steps of a, fixedly mounting an imaging system on a machine tool spindle, wherein the relative positions of the machine tool spindle and a machine tool X motion shaft are fixed; b, using the field depth of the imaging system to position the height direction of a diamond tool; c, adjusting the brightness of a light source and the horizontal position of the diamond tool after the height-direction positioning to obtain a clear and complete tool image; d, using the optical image to respectively measuring the different geometric parameters of tools according to different tool types; e, acquiring the coordinates, of a tool positioning reference point, in an optical image coordinate system; f, converting the coordinates of the tool positioning reference point into the coordinates in a machine tool coordinate system so as to position the diamond tool in a machine tool horizontal plane. By the method, in-situ detection of the geometric parameters of the diamond tool on a super-precise machine tool can be achieved, and positioning of the diamond tool in the X, Y and Z directions in the machine tool coordinate system can be achieved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to an in-situ detection and positioning method of a diamond tool on an ultra-precision machine tool. Background technique [0002] The precise determination of the working parameters of the diamond tool is one of the important means to optimize the process parameters and improve the machining accuracy. Different from its design parameters, the working parameters of diamond tools must be obtained by in-situ detection on ultra-precision machine tools. On the other hand, the diamond tool must be accurately installed at the height coincident with the machine tool spindle, and the precise positioning in the horizontal plane can ensure the relative position control of the diamond tool and the machine tool spindle during the machining process, thereby improving the machining accuracy and surface quality. At present, the LVDT tool setting system and the optical tool settin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/24B23Q17/22
CPCB23Q17/2428B23Q17/2457
Inventor 李国宋成伟黄燕华童维超谢军张海军杜凯
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS