高速CD磨削砂轮修整方法及装置研究
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摘要
本文从高速、超高速加工技术飞速发展的背景出发,分析研究了高速磨削技术的总体构成以及高速磨削机理、磨削工艺和砂轮修整技术。深入研究了基于高速CD磨削技术的砂轮在线修整方法。并提出了以铣削方式进行砂轮修整的在线连续修整新方法。该修整方法修整效率高,能在很短时间内完成砂轮的整形和修锐,避免了在CD磨削中的磨削烧伤;且修整时修整力小、修具本身磨损小、修整精度高。在此基础上本文创新研制了HD-3碗式金刚石滚轮砂轮修整器。该装置具有修整精度和修整效率高、寿命长、便于冷却、结构简单、体积小、安装方便等优点。应用在CD磨削中,提高了加工效率,加工精度,提高了零件质量的稳定性。既满足了制造业提高加工精度的要求,又满足了提高加工效率的要求,使高速、超高速磨削的技术经济优势得以充分发挥。该新方法和装置在大批量生产和高速磨削中有着广泛的应用前景。
On the background of rapidly developed HSM(High Speed Machining) and UHSM (Ultra High Speed Machining) technologies, system construction of high speed grinding technology, high speed grinding mechanism and process and technology of grinding wheels dressing are studied. On-line dressing technology of grinding wheels and equipments are researched in depth. We put forward a new way who dress the grinding wheel using milling mode instead of the tradition on-line dressing method based on existing on-line dressing method. It has high efficiency and can complete face trimming and truing of grinding wheels in very short time. Besides, it has several strongpoints: no grinding burn in CD grinding, low dressing force, little amount of wear, increasing dressing precision.
    HD-3 bell diamond idler wheel dresser using this method has high dressing precision and efficiency, long life, simple structrue, little volume, and it is easy to cooling and mounting. By using it in CD grinding, we can boost maching efficiency, precision and stability of the parts quality. It meet not only the appeal of improving machining precision in manufacturing but also the desire of heightening machining efficiency in produce. It fully exert the technical economy of high speed and ultra high speed grinding, and has far-ranging application foreground in huge batch produce and no profile grinding.
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