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Method for finishing resin binding agent diamond abrasive wheel by combining laser and machinery

A technology of diamond grinding wheel and bonding agent, which is applied to the parts of grinding machine tools, metal processing equipment, grinding/polishing equipment, etc., which can solve the problems of difficult dressing of resin bonded diamond grinding wheel, achieve good topography and improve dressing efficiency , good surface appearance

Inactive Publication Date: 2008-06-04
HUNAN UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The problem to be solved by the present invention is, aiming at the extremely difficult problem of dressing resin bonded diamond grinding wheels in the prior art, a method for laser and mechanical composite dressing of resin bonded diamond grinding wheels is proposed. Precise shaping and sharpening at the same time, so as to obtain good topography; meet the requirements of efficient and precise grinding

Method used

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  • Method for finishing resin binding agent diamond abrasive wheel by combining laser and machinery
  • Method for finishing resin binding agent diamond abrasive wheel by combining laser and machinery
  • Method for finishing resin binding agent diamond abrasive wheel by combining laser and machinery

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Embodiment Construction

[0025] Figure 4 It is an embodiment of the laser and mechanical compound dressing method for resin bond diamond grinding wheel of the present invention. in:

[0026] High power density pulsed laser 1 adopts a power density threshold that can reach 3×10 8 W / cm 2 Acousto-optic Q-switched YAG pulse laser, continuous output average power 0-60W, repetition frequency 0.5kHz-10kHz, pulse width 160ns-500ns;

[0027] The focal length of the focusing lens 2 is 30 mm, and the spot diameter of the focused pulse laser is 0.22 mm.

[0028] Resin bond diamond grinding wheel 3 speed is 1-2m / s;

[0029] Use a dial gauge to measure the circular runout of the grinding wheel, and write down the highest runout. If it is a new grinding wheel, the circular runout is often greater than 0.1mm; turn on the laser to output a low-power pulse laser, adjust the grinding machine 5, turn the grinding wheel 3, and use a thin piece of metal for trial adjustment. Make the focus fall on the highest beating...

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Abstract

The invention provides a laser and mechanical composition finishing resin binder diamond grinding wheel method, comprising: adopting high power density pulse laser, focusing a laser beam by focusing lens and irradiating vertically to the grinding surface of the grinding wheel, rotating a grinding wheel, measuring the fluctuation of the grinding wheel round, adjusting the focus position of the laser to lead the focus to be dropped at the maximum position of the fluctuation of the round, adjusting the parameter of the laser in order to lead the maximum position of the fluctuation of the grinding wheel round to reach the value, axially and repeatedly feeding and rotating the grinding wheel till diamond grinding grain part close to the maximum position of the fluctuation round is wholly removed or partly and slightly removed or partly lost with holding force owning to the removal of the bonder through a plurality of finishing, shaping the grinding wheel by using a single-crystal diamond pen or a carborundum idler wheel with definite tip, removing the grinding grain which loses the holding force and the grinding grain metamorphosing layer burned by laser, and repeatedly carrying out the composition processes till required round fluctuation and topography and geomorphology are reached. The invention obviously improves the finishing efficiency of the grinding wheel and leads the cutting surface of the grinding wheel to obtain excellent topography and geomorphology.

Description

technical field [0001] The invention relates to a dressing method for a resin bonded diamond grinding wheel, and further refers to a method for realizing precise shaping and sharpening of a resin bonded diamond grinding wheel by using laser and mechanical compound dressing. Background technique [0002] Resin bonded diamond grinding wheel has exceptionally good grinding performance, and has broad application prospects in grinding of difficult-to-machine materials, precision ultra-precision grinding, profile grinding, high-efficiency grinding and grinding automation. In recent years, due to breakthroughs in related technologies such as grinding wheel manufacturing and CNC precision grinding machines, the application of such grinding wheels has increased dramatically. Due to the characteristics of this grinding wheel itself, it is very difficult to dress, and the dressing accuracy is difficult to guarantee, which greatly affects the grinding efficiency, precision, and quality,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B53/053B24B53/12
Inventor 陈根余
Owner HUNAN UNIV
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