precision n. 精密,精确性;严格;精密度;【修辞学】精确。 arms of precision 装有瞄准仪的枪炮。 adj. 精确的,精密的。 precision apparatus 精密仪器。 a precision balance 精密天平。 a precision fire 准确射击。
index n. (pl. -es, -dices ) 1.索引。 2.指标,标准,标志。 3.示[食]指 (=index finger)。 4.指数。 5.【印刷】指标,标记,参见号。 6.(刻度盘上的)指针;【机械工程】(铣床)分度(头)。 7.〔the I-〕【天主教】禁书目录。 card indexes 卡片索引。 Style is an index of the mind. 风格是心灵的反映。 the cost of living index 生活费指数。 a price index 物价。 an index pin [plate] 指度针[盘]。 a fixed index 固定瞄准器。 vt. 1.为…加索引;把…编入索引,指明,指出。 2.〔美口〕按生活指数调整(价格)。 vi. 加索引。 index arbitrage 【经济学】指数套利〔指几乎在同一时间购买和出售股票及相应的期货,利用其差价赚钱〕。 n. -er 编索引的人。 adj. -ical ,-less adj. 无索引的。
2 . gear change feeding device equipped with precision indexing samensures an accuracy of 0 . 05mm at the feeding speed of 60 由极精密之indexing cam所组成之gear change式送料
The quality of mechanical drive decides the performance of the servo system , the driving error and hysterisis error are the most important precision index 摘要传动误差和回程误差是精密传动装置中两个最重要的精度指标。
Precision indexing : taking seiki special design of the cam rollers for segmentation , can maintain a higher degree of precision segmentation and high torque , to ensure the re - load capability 高精度的分度:潭子精机特殊设计的凸轮滚子在分割器内,能保持较高的分割精确度和高扭矩时,确保重负载的能力。
In order to realize the conversion and unification of the data in different datum frames , converting parameters through robust estimation is put forward when the precision index of the two different coordinates cannot be obtained 针对在无法获知两个坐标系下公共点成果精度指标的情况下,提出了利用稳健估计理论合理求解转换参数的一种方法。
Transmission error and the return difference are the most important precision index in the precision gearing system and their influence on servo system is also the most important , so their accurate calculation is a necessary work 传动误差和传动回差是精密齿轮传动装置中最重要的精度指标,对伺服系统的影响也是诸因素中最大的,所以对其进行较准确的计算是一项必不可少的任务。
In this paper , the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software , structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype , such as transmission accuracy , least step , stability of the least step , load capacity is measured by the absolute rotary encoder . by analyzing the measurement data and research content , it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors , facilitate size precision adjustments , input moment can be achieved in the form of a pure force couple importing ; through this study , " the large ratio friction transmission prototype " could apply in practical engineering basically 本文研究了大速比摩擦传动的传动理论;设计了新型椭圆凸轮波发生器,设计制作了大速比摩擦传动样机;用软件ansys对所设计的椭圆凸轮结构进行了有限元分析;用19位绝对式编码器测试了大速比摩擦传动机构的传动精度、最小步距、最小步距的稳定性以及带负载能力等各项精度指标;对测量数据和研究内容进行了归纳和整理,认为新型椭圆凸轮波发生器克服了加工误差带来的诸多问题,新型椭圆凸轮波发生器可以进行尺寸精度调整,能够达到输入力矩以纯力偶的形式输入;通过本项研究,基本可以使“大速比摩擦传动机构”在工程中得以应用。
The dimensional globoidal indexing cam mechanism , as a result of the steady movement , accurate , the transmission ceaseless and is suitable for high speed indexing and precise indexing . now it is the most ideal high speed precision indexing mechanism in the world , and it is being widely applied on each kind of automaton and the production line , this mechanisms prospect of application is broad , arouses the people enormous interest . but the examination of the globoidal indexing cam mechanism is a quite weak link , the manufacturers don ’ t give the examination because of the difficulty of the geometry shape error examination of the cam contour 空间弧面分度凸轮机构,由于运动平稳、准确、传动无间隙而适用于高速分度和精密分度,是当今世界上最理想的高速精密分度机构,正被广泛应用于各种自动机和生产线上,该机构应用前景广阔,引起人们极大的兴趣,而弧面分度凸轮机构的检测是一个比较薄弱的环节,一般生产厂家由于凸轮轮廓几何形状误差检测困难而不予检测,因此本试验台的研制具有极其重要的意义。
Our products are widely used for metallurgical , petroleum - chemical , light - textile , architectural , wood working , mineral - dressing equipment and food machinery as well as aerospace industry , etc . they can be used in architectural hoists , tower cranes , elevators , escalators , passenger conveyors , wood working machines , mineral - dressing for gold , continuous casting machinery , tube welding machinery , bottling machines , weaving machinery , universal machines , precision indexing and radar equipment , etc . as transmission devices for power transmitting or precision position driving 本公司产品广泛地应用于冶金石化轻纺建筑木工选矿食品等机械设备以及航空航天等工业部门,比如可用在建筑升降机塔吊电梯扶梯自动人行道木工机械黄金选矿连铸机械焊管机械罐装机械编织机械通用机械精密分度以及雷达等设备上作为传递动力或精确位置用的传动装置。