巻号一覧
61 巻, 2 号
選択された号の論文の27件中1～27を表示しています
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岡田 勝蔵, 関口 勇1995 年 61 巻 2 号 p. 171-172
発行日: 1995/02/05
公開日: 2009/07/23
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大村 悦二1995 年 61 巻 2 号 p. 173-176
発行日: 1995/02/05
公開日: 2009/07/23
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中野 隆1995 年 61 巻 2 号 p. 177-180
発行日: 1995/02/05
公開日: 2009/07/23
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松川 宏1995 年 61 巻 2 号 p. 181-184
発行日: 1995/02/05
公開日: 2009/07/23
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新上 和正1995 年 61 巻 2 号 p. 185-186
発行日: 1995/02/05
公開日: 2009/07/23
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三宅 正二郎1995 年 61 巻 2 号 p. 187-192
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリー摩擦係数0.01程度の極低摩擦現象を得るための材料構成の指針について考察し,超硬質膜の有用性を述べた.さらにダイヤモンドの水による超液体潤滑の例,摩擦生成物,固体潤滑膜による超固体潤滑の例,ふっ素化などによる表面間の相互作用を低減することによる低摩擦化の例を述べた.読者のご参考になれば幸いである.抄録全体を表示PDF形式でダウンロード (1251K) -
欧陽 勤1995 年 61 巻 2 号 p. 193-194
発行日: 1995/02/05
公開日: 2009/07/23
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平塚 健一1995 年 61 巻 2 号 p. 195-198
発行日: 1995/02/05
公開日: 2009/07/23
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金子 礼三, 平野 元久1995 年 61 巻 2 号 p. 199-202
発行日: 1995/02/05
公開日: 2009/07/23
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山田 敦, 松村 潔, 山口 富士夫1995 年 61 巻 2 号 p. 203-207
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリー従来通常曲線,曲面に対して利用されている幾何的ニュートン法を,有理曲線,曲面の干渉処理に適用してみた結果,通常曲線,曲面の処理では見られない,有理曲線,曲面特有の問題が発生することが明らかになった.まず初期点の与え方によっては,反復過程で発散してしまう場合が非常に多く発生する.また解を求めるために必要のない多くの除算が必要となり,零割りの危険性を多く含む.本論文では,有理曲線,曲面の射影前の曲線,曲面を対象として処理する幾何的ニュートン法を新たに提案した.本処理方法を用いると,従来の処理方法の問題点を持たない安定した処理が可能となる.また通常曲線,曲面を対象とした場合には,本処理方法は従来の方法と全く同じ処理となる.このことから本処理方法は,通常曲線,曲面を対象とした幾何的ニュートン法の,有理曲線,曲面への自然な拡張であるといえる.抄録全体を表示PDF形式でダウンロード (1165K) -
トロコイド歯車の圧力角と歯形の補正本多 浩1995 年 61 巻 2 号 p. 208-212
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーCam gear is an element of trochoidal gear pair. Generally the tooth pyofile of the cam gear is lead from epicycloid curves, but the accurate profile can not be lead on the flank of tooth without a shift of roller cutter. The value of shift coefficient is varied by gear ratio of roller and cam gear. In this paper, it is proved that a minimum shift coefficient of the trochoidal gear pair is obtained by loci of contact point. In consequence, limits of pressure angle, extents of gear height are shown. And a method of modifying tooth profile is derived.抄録全体を表示PDF形式でダウンロード (980K) -
戸井 武司, 青山 和正, 大久保 信行1995 年 61 巻 2 号 p. 213-217
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーComplex structure assembled by many components need to reduce vibration and noise caused by the vibration considering not one part but all part of components. This paper pays attention to structural modification for the noise and the vibration reduction based on transmitted force between components under operating condition. First, frequency response functions of main component, which includes vibration source, and sub-components, which do not include vibration source are measured by modal analysis. Each component is connected at a few points and some sub-components are assumed to cause problem of the noise and the vibration. Second, a location where the transmitted force from the main component to the sub-component decreases is investigated by using mass struc-tural modification, furthermore it is confirmed that this method can reduce not only the vibration but also the noise caused by the vibration.抄録全体を表示PDF形式でダウンロード (1045K) -
ニューラルネットワークによる探索の効率化宅間 正則, 柴坂 敏郎, 河合 正樹, 豊嶋 敏雄1995 年 61 巻 2 号 p. 218-222
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーThe skilled machinist can continuously adjust operations in terms of machining efficiency, machinability and cost. This adjustment is done by means of cutting conditions. In the previous paper, the system was proposed to simulate the machinist's thinking process which set the appropriate cutting conditions based on evaluation of cutting state. The process was constructed by fuzzy integral and hill-climbing. But it had become a serious problem that the try counts on searching of the appropriate cutting conditions using the previous system were nearly four times as many as the skilled machinist's. In this parer, it proposed that the skilled machinist's know-how for improvement of searching efficiency is systematized by neural network. This system which is constructed by introducing the neural network into the previous system is superior to the previous system. By using this system, the cutting conditions which can get the high evaluation is obtained, and the try counts was half as many as the counts using the previous system. The accuracy of the system's output and the improvement of searching efficiency were examined by the experiments under various cutting conditions in turning, and the validity of this system was confirmed.抄録全体を表示PDF形式でダウンロード (1369K) -
古沢 利明, 日野 裕, 野呂瀬 進, 中村 示, 山田 国男, 貴志 浩三1995 年 61 巻 2 号 p. 223-227
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーThe purpose of this study is to obtain a high-precision surface in aluminum alloy reinforced with fibers of carbon. The affections toward formation of surface by the variation of the kind of carbon fiber and the fiber orientation were clarified, and cutting performance of diamond tool were investigated. The results obtained from this study are as follows: In the case of pitch based carbon fiber, the pores were generated by falling-off of fibers and the projections of fibers were formed on finished surface. In the case of mesophase pitch based carbon fiber, the pores were tended to be generated by fracture and falling-off of fibers. The change from the projection to the formation of pore was depended on the angle between the fiber orientation and finished surface. There was a tendency for the projecting rate of fiber to increase at large angle. From X-ray diffraction analysis it may be inferred that tool wear of diamond is mainly abrasive.抄録全体を表示PDF形式でダウンロード (11985K) -
清水 茂夫, 岡本 健一, 大関 浩1995 年 61 巻 2 号 p. 228-232
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリークロスローラガイドを組み込んだxテーブルに外部荷重とモーメントの合成荷重が作用する場合のガイド内負荷分布式をたて,最大分布負荷,負荷分布の変動状態およびxテーブルの姿勢変化を理論解析して検討を加えた.また,種々の荷重偏心率でテーブル走行中の姿勢変化状態を実測し,予圧が零の理論値と比較した.結果を要約すると以下のようになる.
(1)テーブル中心に荷重が作用する見掛け上偏心荷重でない条件下でも,テーブル両端のストロークエンドでは偏心荷重状態になるので,各ころに働く分布負荷はかなりの片当たり状態となり,最大分布負荷も偏心零の場合に比べ2倍程度まで増大する.
(2)偏心荷重が作用すると,各ころに働く分布負荷は極端な片当たり状態となり,最大分布負荷も偏心零の場合に比べ3~7倍程度まで増大する.
(3)予圧の付与効果は大きく,負の予圧,すなわちがたつきを付与した場合には剛性や案内精度は著しく損なわれる。最大分布負荷を最小にする最適予圧付近から剛性や案内精度は著しく向上する.ただ,案内精度向Lのために過剰な予圧を付与することは寿命の点から問題になるため,目安としては最適予圧からその2倍程度までであろう.
(4)種々の荷重偏心率に対して理論値は定性的に実験値によく合致したが,定量的には変位5成分の内いずれかの1つまたは2つが実験値に合致しなかった.抄録全体を表示PDF形式でダウンロード (1322K) -
引上げ照射法の提案楢原 弘之, 斎藤 勝政1995 年 61 巻 2 号 p. 233-237
発行日: 1995/02/05
公開日: 2010/01/20
ジャーナル フリーA new building process of three dimensional photofabrication is described which reduces surface roughness of parts. As CAD model is sliced into many thin layers in the three dimensional photofabrication process, smooth surface is converted into steps. Furthermore laser beam faithfully creates models not only their details but also steps. The influence of steps is dominant to the bad impression of the model's surface smoothness compared to its original design, if a gradient or an angle of inclination of surface is low. The proposed new process showed an improvement of surface roughness, especially on the gentler slope.抄録全体を表示PDF形式でダウンロード (5568K) -
鳴瀧 則彦, 山根 八洲男, 臼杵 年, 島田 兼成, 武田 義信1995 年 61 巻 2 号 p. 238-242
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーThe machinability of high strength sintered alloy steel from different powder, partially alloyed and fully alloyed powder, was studied, and improvements of the machinability of the steel with free-machining additives, complex oxide (2CaO-Al2O3-SiO2) and MnS, were tried. The steel tested had a chemical composition of Fe-4Ni-0.5Mo1.5Cu-0.5C and a density of 7.2 g/cm3. Carbide tool P 10 was used for the tests. The machinability of the steel depended on the powder to be sintered. The steel sintered from partially alloyed powder had a better machinability than that from fully alloyed powder. Chipping, however, was often observed on the cutting edge of the tool in machining the former. Since the chipping, the tool life was very unstable. Furthermore large crater wear and flank wear at the depth of cut were also observed under high cutting speeds. Addition of a complex oxide to the steel made the crater wear smaller, but as for the chipping, the oxide had no effect. While MnS in the steel suppressed the chipping, the flank wear became larger on the contrary. Only simultaneous addition of the oxide and MnS into the steel made chipping, flank wear and crater wear smaller.抄録全体を表示PDF形式でダウンロード (1704K) -
突起頂上近傍の形状評価小林 直規, 柳 和久1995 年 61 巻 2 号 p. 243-247
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーA compensation method of measuring probe diameter was presented for discrete points of surface profile data. To evaluate the local asperity tip geometry on surface topography data, the segmental area and volume in a certain assessment area were proposed in contrast to the radius of curvature obtained by a best-fit circle near an asperity summit. It can be seen that these new parameters are sensitive to subtle change in asperity tip geometry in the case of extremely small radius of curvature. Consideration was also given to the correlation between asperity tip geometry and summit height.抄録全体を表示PDF形式でダウンロード (1218K) -
光学的解析,基礎実験,試作および性能試験鬼鞍 宏猷, 桑原 義治, 中村 泰三, 佐島 隆生, 今関 義朗, 甲木 昭雄, 山田 靖二1995 年 61 巻 2 号 p. 248-252
発行日: 1995/02/05
公開日: 2010/01/20
ジャーナル フリーAn optical hole-diameter measuring instrument has been developed. The instrument, which consists of two laser diodes, one photo sensitive detector, two condenser lenses and some mirrors, is intended to measure, based on trigonometry, the distances to the hole wall on two sides alternately. The optical, fundamental analysis and experiment showed that it was possible to measure the distances to the object having not only a mirror-like plane surface but also a rough, cylindrical surface such as a drilled one. Using the instrument, which was manufactured on trial, it was found that the width between block gages and the hole diameter of a ring gage could be measured within the accuracy of 10μm and that it was influenced by the position of the measuring probe and the inclination of the measured object. The deviation from the desired values may be attributed to the impropriety of calibration, the misalignment of irradiation of two laser beams and the nonlinearity of optical and electrical elements.抄録全体を表示PDF形式でダウンロード (1128K) -
中藪 俊博, 森 基, 滝田 敦夫, 岡路 正博, 今井 秀孝1995 年 61 巻 2 号 p. 253-257
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーAn accurate and practical system for the measurement of rolling that occurs with the movement of a machine tool unit has been developed. The system consists of a bi-prism, two plane mirrors, and a double-path optical heterodyne laser interferometer. The measurement of rolling with this system is not affected by pitching, yawing, heaving, and swaying. The measurement system was confirmed to have a sensitivity of 0.032μm/arcsec (variation of path length/unit angle of rolling), a resolution of 0.31 arcsec (used in λ/64 measurement system), and 800 mm travel length. In order to investigate the rolling that occurs in a machining centre (680 × 500 × 630 mm), the measurement was carried out in full stroke of each unit in the machining centre. The results show the reliable agreements in replication measurement.抄録全体を表示PDF形式でダウンロード (6451K) -
光リング式3-D形状計測センサ三好 隆志, 高谷 裕浩, 滝澤 暢, 福沢 亮太1995 年 61 巻 2 号 p. 258-262
発行日: 1995/02/05
公開日: 2010/01/20
ジャーナル フリーThis paper describes development of a new non-contact 3-D profile sensor which is not influenced very much by inclination angles and edge profiles of 3-D free form surfaces. The proposed 3-D profile sensor called “optical ring image sensor” has two major advantages. First, reflection light from a target surface in optical axis can be detected in all directions using a ring slit. Second, the radius of optical ring image is linearly proportional to the displacement of the surface in optical axis. In this paper, a prototype of optical ring image 3-D profile sensor with unique properties mentioned above is designed and produced. From onmachine measurement using NC machine tool as well as fundamental experiments, this sensor makes it possible to measure the displacement within an accuracy of about ±7μm for the steeply inclined diffuse reflection surface up to ±80° and also about ±10μm even for a nearly specular reflection surface inclined up to ±70°. Therefore, it will be a very useful sensor for 3-D profile measurements of delicated shaped surfaces.抄録全体を表示PDF形式でダウンロード (1614K) -
木村 誠, 橋本 哲幸, 北原 時雄, 安藤 泰久, 中田 毅1995 年 61 巻 2 号 p. 263-267
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーIn the small gripper studied by the authors, a piezoelectric stack actuator is employed because of its suitable size, high resolution and high rigidity, and controlled by electric charge feedback which can make the hysteresis very small. The gripper has an enlargement mechanism consisting of hinges and arms against the small displacement of the actuator. A strain gauge is stuck on the finger as a sensor of the holding force. Thus, a simple and fine force control of the gripper is made possible in the range of 0-40 mN, where a good linearity between the input and the output of the system is obtained and the settling time of the step response is less than 0.19s with a very small overshoot.抄録全体を表示PDF形式でダウンロード (1078K) -
1軸のサーボパラメータチューニング垣野 義昭, 松原 厚, 黎 子椰, 上田 大介, 中川 秀夫, 竹下 虎男, 丸山 寿一1995 年 61 巻 2 号 p. 268-272
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーThis paper presents one tuning method of servo parameters of single axis servo drive system in NC machine tools. In this method, using computer simulation on mathematical model of feed drive system, servo parameters are tuned as maximizing servo stiffness. As a result, high servo stiffness was achieved than that can be given using standard servo parameters. In experiment, servo stiffness of existing feed drive system of machining center was measured and closely reflected the results of the computer simulation. It was also shown that droops of each axis was reduced in boring.抄録全体を表示PDF形式でダウンロード (1197K) -
発信器の開発と距離計測における誤差要因の検討青柳 誠司, 神谷 好承, 岡部 佐規一, 佐々木 健, 高野 政晴1995 年 61 巻 2 号 p. 273-277
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーNowadays precise estimation of performance characteristics of a robot is being necessary. An ultrasonic measuring system of 3-D position and orientation of a robot for this purpose has been already proposed, of which principie is a triangulation using distances between transmitters attached to a robot arm and receivers placed around the work space of the robot. An electric spark which works as a non-directional point source of ultrasound is used as a transmitter. In this paper the development of this transmitter is dealt with. By inserting a condenser of a few hundred picofarads to the secondary side of an ignition coil in the electric circuit of the transmitter, the sound pressure of the radiated ultrasonic pulse becomes about ten times as stron3 as the case in which the condenser is not inserted. The directivity of this transmitter was investigated experimentally. An ultrasonic ranging system which uses this transmitter was also developed and causes of the ranging error were discussed.抄録全体を表示PDF形式でダウンロード (1436K) -
光カプラ型2色温度計の適用上田 隆司, 入山 孝宏, 杉田 忠彰1995 年 61 巻 2 号 p. 278-282
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーA new type of Infrared Radiation Pyrometer using a fused fiber coupler is made, and its characteristics are investigated theoretically and experimentally. This pyrometer can be applied to measure the flush temperature of a small area on ceramics (PSZ) when it is irradiated with CO2 laser. In this pyrometer, the infrared rays radiated from the object are accepted by an optical fiber, and divided into two parts and transmitted to the two types of infrared detectors by a fused fiber coupler. The temperature is obtained by calculating the ratio of the output voltages from these two detectors. The characteristics of this pyrometer are as follows. It is possible to measure the temperature with controlling the disturbance of the emissivity. When the object has a surface of uniform temperature, the measuring temperature does not depend on the size of the object. In the case when the object has the distribution in temperature, it is possible to estimate the maximum temperature correctly from the experimental results抄録全体を表示PDF形式でダウンロード (3996K) -
真下 寛治, 北林 秀也, 谷村 吉久1995 年 61 巻 2 号 p. 283-286
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーTo measure the 3-dimensional profiles of objects with free-form surfaces such as in pattern making and die sinking, a new optical noncontact measuring sensor is proposed in this paper. The optical sensor is based on the triangulation method in order to obtain the signal which is proportional to the displacement of the object surface to be measured. In the optical sensor, a linearly polarized laser beam illuminates the surface. The depolarized component of the light scattered from the surface is detected, excepting the specularly reflected light, by using optical components. Therefore, the profiles of diffuse reflection surfaces and metal surfaces can be measured by using the optical sensor. Using the optical sensor, a spherical surface of 4 mm diameter, coated with white paint, can be measured over ±73° in inclination angle and with 3.3 μm in standard deviation from values measured by means of a contact coordinate measuring machine.抄録全体を表示PDF形式でダウンロード (1017K) -
-一体構造平行ばね,静圧空気軸受,極低線膨張材料製真直度測定機,滑車と糸車駆動すべり軸受について-尾坂 一, 津田 展宏1995 年 61 巻 2 号 p. 287-289
発行日: 1995/02/05
公開日: 2009/07/23
ジャーナル フリーPDF形式でダウンロード (3278K)
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