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ANON-CONTACTCOMPENSATIONMETHODOFANALIGNMENTANDARADIUSOFAGRINDINGWHEELINULTRA-PRECISIO...
A NON-CONTACT COMPENSATION METHOD
OF AN ALIGNMENT AND A RADIUS OF A GRINDING WHEEL
IN ULTRA-PRECISION GRINDER
FUKUTA Masahiko1, YAMANE Yasuo2, SEKIYA Katsuhiko2 and SUGINO Tadanori2
1Toshiba Machine Co.,Ltd
2Dept. of Mechanical Engineering, Hiroshima University,
1-4-1 Kagamiyama, Higashi-hirosshima, 739-8527, Japan
Abstract The study proposes a non-contact adjustment method of grinding wheel alignment in ultra-precision grinder by using electric capacitance between a grinding wheel and a reference ball. Cemented carbide with almost no binder is used for die material as molding glass lens. The carbide is one of the most difficult-to-cut materials because of its high hardness. Diamond wheel therefore is generally used for grinding the material under quite light grinding conditions such as less than 1 micrometer of depth of cut. In such ultra-precision grinding, an alignment and a radius of a grinding wheel must be settled precisely to achieve high efficient grinding. In ultra-precision grinding, grinding and measuring are repeated several times, that is, after grinding the work form is measured, and the result is used to correct a grinding program for next grinding. The method proposed in this study is based on an electric capacitance between grinding wheel having conductivity and the reference ball, this means that the method is carried out without any contact between the wheel and the reference. The capacitance is in inverse proportion to the gap, and that can be measured precisely. Using the method, the alignment and the radius of the wheel can be adjusted within short time.
Key words ultra-precision grinding, grinding wheel alignment, compensation method,electric capacitance, reference ball
1 INTRODUCTION
Recently, high precise mold glass lenses are widely used as aspheric lens because of its high optical performance. Cemented carbide with almost no binder therefore must be used as the mold material, because the glass needs high molding temperature and the cemented carbide has high temperature resistance. The carbide however is one of the most difficult-to-cut materials, and the mold should have quite high form accuracy and high surface finish. Ultra-precision grinding with diamond wheel is only the way to get such good quality.
请大家不要用google翻译,翻译出的语句根本不通 展开
OF AN ALIGNMENT AND A RADIUS OF A GRINDING WHEEL
IN ULTRA-PRECISION GRINDER
FUKUTA Masahiko1, YAMANE Yasuo2, SEKIYA Katsuhiko2 and SUGINO Tadanori2
1Toshiba Machine Co.,Ltd
2Dept. of Mechanical Engineering, Hiroshima University,
1-4-1 Kagamiyama, Higashi-hirosshima, 739-8527, Japan
Abstract The study proposes a non-contact adjustment method of grinding wheel alignment in ultra-precision grinder by using electric capacitance between a grinding wheel and a reference ball. Cemented carbide with almost no binder is used for die material as molding glass lens. The carbide is one of the most difficult-to-cut materials because of its high hardness. Diamond wheel therefore is generally used for grinding the material under quite light grinding conditions such as less than 1 micrometer of depth of cut. In such ultra-precision grinding, an alignment and a radius of a grinding wheel must be settled precisely to achieve high efficient grinding. In ultra-precision grinding, grinding and measuring are repeated several times, that is, after grinding the work form is measured, and the result is used to correct a grinding program for next grinding. The method proposed in this study is based on an electric capacitance between grinding wheel having conductivity and the reference ball, this means that the method is carried out without any contact between the wheel and the reference. The capacitance is in inverse proportion to the gap, and that can be measured precisely. Using the method, the alignment and the radius of the wheel can be adjusted within short time.
Key words ultra-precision grinding, grinding wheel alignment, compensation method,electric capacitance, reference ball
1 INTRODUCTION
Recently, high precise mold glass lenses are widely used as aspheric lens because of its high optical performance. Cemented carbide with almost no binder therefore must be used as the mold material, because the glass needs high molding temperature and the cemented carbide has high temperature resistance. The carbide however is one of the most difficult-to-cut materials, and the mold should have quite high form accuracy and high surface finish. Ultra-precision grinding with diamond wheel is only the way to get such good quality.
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阿非接触式补偿方法
作者:校准与阿砂轮一个RADIUS
在超精密磨床
福太Masahiko1,山根Yasuo2,关谷Katsuhiko2和苏吉诺Tadanori2
1Toshiba机械有限公司
2Dept。机械工程,广岛大学,
1-4-1镜山,东hirosshima,739-8527,日本
摘要本研究提出了磨削超精密磨床用砂轮之间和参考电容电动四轮定位球非接触式的调整方法。几乎没有硬质合金粘结剂用于玻璃镜片的成型模具材料。碳化物是最难以切割,因为其高硬度材料之一。因此,金刚石砂轮磨削一般用于磨削条件下很轻,如小于1微米的切削深度的物质。在这种超精密磨削,校准和1砂轮半径必须解决正是为了实现高效率的研磨。在超精密磨削,磨削和测量重复几次,即磨后测量的工作方式,结果是用来纠正下磨削磨削方案。该方法在本研究是一间电容量的磨削砂轮具有导电性和参考球,这意味着,该方法无需进行车轮之间的任何接触和参考了。电容是成反比的差距,并能精确地测量。使用该方法,路线和车轮的半径,可在短时间内调整。
关键词超精密磨削,砂轮对齐,补偿法,电容量,参考球
1引言
最近,高精密模具玻璃镜片被广泛用作因为其高非球面镜片的光学性能。几乎没有任何粘合剂,因此必须使用硬质合金作为模具材料,因为需要高的玻璃成型温度和硬质合金具有很高的耐温性。碳化物但是是最难以切削材料之一,模具应具有相当高的形状精度和表面光洁度高。超精密金刚石砂轮磨削,只是方式获得这样的好品质。
作者:校准与阿砂轮一个RADIUS
在超精密磨床
福太Masahiko1,山根Yasuo2,关谷Katsuhiko2和苏吉诺Tadanori2
1Toshiba机械有限公司
2Dept。机械工程,广岛大学,
1-4-1镜山,东hirosshima,739-8527,日本
摘要本研究提出了磨削超精密磨床用砂轮之间和参考电容电动四轮定位球非接触式的调整方法。几乎没有硬质合金粘结剂用于玻璃镜片的成型模具材料。碳化物是最难以切割,因为其高硬度材料之一。因此,金刚石砂轮磨削一般用于磨削条件下很轻,如小于1微米的切削深度的物质。在这种超精密磨削,校准和1砂轮半径必须解决正是为了实现高效率的研磨。在超精密磨削,磨削和测量重复几次,即磨后测量的工作方式,结果是用来纠正下磨削磨削方案。该方法在本研究是一间电容量的磨削砂轮具有导电性和参考球,这意味着,该方法无需进行车轮之间的任何接触和参考了。电容是成反比的差距,并能精确地测量。使用该方法,路线和车轮的半径,可在短时间内调整。
关键词超精密磨削,砂轮对齐,补偿法,电容量,参考球
1引言
最近,高精密模具玻璃镜片被广泛用作因为其高非球面镜片的光学性能。几乎没有任何粘合剂,因此必须使用硬质合金作为模具材料,因为需要高的玻璃成型温度和硬质合金具有很高的耐温性。碳化物但是是最难以切削材料之一,模具应具有相当高的形状精度和表面光洁度高。超精密金刚石砂轮磨削,只是方式获得这样的好品质。
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