Off-line electrolytic dressing device and dressing method of diamond grinding wheel for optical element grinding
A technology for diamond grinding wheels and optical components, which is applied to abrasive surface adjustment devices, special circuits for processing, and parts of grinding machine tools, etc. Excellent performance, saving man-hours, and good abrasive protruding properties
Active Publication Date: 2018-08-31
成都精密光学工程研究中心
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Problems solved by technology
Therefore, the use of ultra-precision grinding machine tools to achieve in-situ dressing of diamond grinding wheels will increase the manufacturing cost of components, prolong the processing hours, and reduce the overall production efficiency
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[0029] Such as figure 1 with 2 As shown, the trimming device of the present invention includes a main shaft 1 , an electrolyte tank 3 provided with a trimming head, a trimming distance fine-tuning system 4 , a protective cover 5 , a controller and a support base 7 . The diamond grinding wheel 2 is installed on the spindle 1. Under the control of the controller, the spindle 1 rotates to drive the diamond grinding wheel 2 to rotate at a low speed; the electrolyte tank 3 is used to accommodate the electrolyte dressing fluid, and the dressing head installed in the electrolyte tank 3 It is connected with the cathode of the electrolytic DC power supply for trimming electrolysis reaction. The trimming head uses the cylindrical hole with interference fit to achieve good electrical conduction with the cathode of the DC power supply; the trimming distance fine-tuning system 4 supports the electrolyte tank 3, which can adjust the electrolyte tank 3 The height is finely adjusted to adjus...
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The invention provides a diamond grinding wheel offline electrolytic dressing device for low-cost aspheric-surface optical element grinding. The diamond grinding wheel offline electrolytic dressing device for the optical element grinding comprises a main shaft, an electrolytic tank provided with a dressing head, a dressing-distance fine-adjustment system and a controller; a diamond grinding wheel is installed on the main shaft, and the main shaft rotates under the control of the controller to drive the diamond grinding wheel to conduct rotational movement; the dressing-distance fine-adjustment system supports the electrolytic tank and conducts precise fine-adjustment on the height of the electrolytic tank, so that the distance between the dressing head in the electrolytic tank and the surface of the diamond grinding wheel is adjusted. According to the diamond grinding wheel offline electrolytic dressing device for the optical element grinding, the dressing efficiency is high, and the protruding performance of grinding particles on the surface of the grinding wheel is good; rapid dressing and precise dressing of the grinding wheel can be achieved by adjusting the rotating speed of the grinding wheel, an electrolytic voltage or current and the distance between the dressing head and the surface of the grinding wheel, it is guaranteed that the grinding particles have good protruding performance, and it is also guaranteed that a bonding agent has strong maneuverability over the grinding particles.
Description
technical field [0001] The invention relates to the field of ultra-precision machining of optical elements, in particular to an off-line electrolytic dressing device and a dressing method for diamond grinding wheels in the forming grinding process of large-diameter aspheric optical elements. Background technique [0002] With the continuous development of laser technology, large-aperture high-power laser drivers, as an important branch of laser technology, have important applications in inertial confinement nuclear fusion, such as the NIF device in the United States. As the largest optical project in the world, the requirements of high-power laser drivers are much higher than those of any optical system so far in terms of the quantity and quality of large-aperture optical components. The ultra-precision machining of optical components is an important means to obtain high-volume, high-performance optical components. [0003] Grinding is an important forming process for the u...
Claims
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IPC IPC(8): B24B53/06B24B53/12B23H3/00B23H3/02B23H9/02
CPCB23H3/00B23H3/02B23H9/02B24B53/06B24B53/12
Inventor 周炼田亮雷向阳谢瑞清陈贤华
Owner 成都精密光学工程研究中心