共查询到18条相似文献,搜索用时 125 毫秒
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针对阿基米德滚刀加工渐开线圆柱齿轮,用阿基米德造型的滚刀在刃磨滚刀齿形时,为了提高齿形精度,改变加工工艺和检测工艺,使用先进的"砂轮修正器"和"齿轮测量中心",缩短了设计和加工时间,提高了齿轮滚刀齿形磨制的效率,保证了滚刀加工渐开线圆柱齿轮齿形精度,使大于4模数的阿基米德滚刀齿形(A级﹑AA级)易于保证被加工渐开线圆柱齿轮的齿形精度。 相似文献
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在磨制渐开线齿轮刀具时,渐开线凸轮起着重要作用。没有合适的渐开线凸轮,就无法磨制出合格的渐开线齿轮刀具。我厂在Y7125齿轮磨床上磨制G1515002、G1515005斜齿插齿刀时,由于插齿刀的压力角较小(分别为14°和17°30′),且为非标压力角,现有的渐开线凸轮无法满足加工要求。在缺乏资料的情况下,我们通过反复试磨,加工出了合格的渐开线凸轮,为新产品开发赢得了时间。 1 渐开线凸轮磨削原理渐开线凸轮的磨削原理如图1所示。根据渐开线的形成原理,通过基圆盘在导轨上作纯滚动,砂轮即可磨削出凸轮廓形。(a)(b)图1 2 渐开线凸轮磨削… 相似文献
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本文绘制展示了瑞士、日本、中国部分手表齿轮采用渐开线齿形的实例,并叙述了渐开线齿形可改善手表走时性能且刀具制造简单的优点. 相似文献
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张言懿 《机械工人(冷加工)》2004,(2):42-43,50
齿轮运转时,齿形加工精度对传动的平稳性起着举足轻重的作用。而评价齿轮工作平稳性的主要因素之一,是齿轮渐开线齿形误差。渐开线齿形误差若超差就会影响齿轮传动时一对牙齿从开始啮合到脱开过程中速比的变化,即转角误差。这种转角误差在齿轮每一转中是多次重复出现的。它会引起 相似文献
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在机械修配和零件测绘中,常遇到对未知参数的渐开线齿形进行精确测量,并由此得出渐开线的齿形数据,测量方法有多种,但采用量棒测量与参数预设核算法则是一种快速、经济、精确的测量方法。1.测量方法渐开线齿轮或花键的齿数 z 可直接测得,齿顶圆直径 相似文献
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WANG Liding LING Siying MA Yong WANG Xiaodong LOU Zhifeng Key Laboratory for Precision & Non-traditional Micro System Machining of Ministry of Education Dalian University of Technology Dalian China Key Laboratory for Micro/Nano Technology System of Liaoning Province China 《机械工程学报(英文版)》2011,(3)
The manufacturing accuracy of ultra-precision master gears signifies the technological capability of the ultra-precision gear.Currently,there is little report about the manufacturing technologies of ultra-precision master gears at home and aboard.In order to meet the requirement of grinding ultra precision master gear,the gear grinder with flat-faced wheel Y7125 is chosen as the object machine tool and the geometric model of its precision generating part,the involute cam,is established.According to the stru... 相似文献
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由于几何误差的影响,现有研究主要考虑末端机构或关键运动轴几何误差补偿,尚缺逐次补偿运动轴几何误差。为了避免形成在机检测机构几何误差链而产生误差累积效应,有效提升在机检测精度。根据自主研发卧式磨齿机在机检测原理,基于多刚体系统运动学和齐次坐标变换理论,建立在机检测机构几何误差链模型。逐次识别并补偿几何误差链中运动轴几何误差后,进行了磨齿机标准样板齿轮检测实验。结果表明:误差补偿前后,齿向精度均为4级;误差补偿后,齿形精度提高4个等级,为4级精度,与格里森检测实验结果相吻合。结果验证了模型的正确性,有望在磨齿机高精度在机检测系统中推广使用。 相似文献
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This paper presents surface-profiling based gear pitch deviation measurement for an involute spur gear. A rotary profiling system, which consists of an air-bearing spindle and a displacement sensor with a diamond stylus, is employed to measure gear pitch deviation. In measurement of gear pitch deviation, an eccentric error between a gear axis and a motion axis of the rotary stage in the profiling system would affect accuracy of gear profile measurement. In this paper, at first, the influence of the eccentric error on measurement of gear pitch deviation is estimated in computer simulation based on a geometric model of the profiling system. After that, a new scanning method named “opposite-direction dual scanning method” is proposed so that a steep profile of gear flank surface with a local slope of up to 90° can be measured by the developed rotary profiling system. For compensating distortions in the measured gear tooth profile, which are induced not only by the eccentric error but also by a probe offset introduced by the proposed scanning method, a self-calibration and compensation method is applied. To verify the feasibility of the proposed method, measurement of gear pitch deviation of a master involute spur gear with a certificate data is carried out. Measurement uncertainty of the proposed method is also analyzed. 相似文献
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凸轮廓形变转速磨削方法的研讨 总被引:1,自引:1,他引:0
根据凸轮轴仿形磨床的工作原理,探讨了变转速磨削凸轮廓形的机理,推导了凸轮磨削点移动速度和工件变转速的计算式,为凸轮变转速磨削设备的研究提供了有益的参考。 相似文献