巻号一覧
後続誌
51 巻, 11 号
選択された号の論文の23件中1～23を表示しています
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小特集企画にあたって新井 民夫1985 年 51 巻 11 号 p. 1977-2000
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (816K) -
高精密ロボットをいかに実現するか牧野 洋1985 年 51 巻 11 号 p. 2001-2007
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (1200K) -
高野 政晴1985 年 51 巻 11 号 p. 2008-2013
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリー精密鐸ポットは一つの自動機械であると狭義に定義して機構上のいくつかの注意事項を述べた.ロボット固有の機構上の難しさと言えば, 多関節ロボットの場合制御点に対し作業点が数倍～数十倍に拡大されるので, 分解能, 剛性, ガタのなさがそれだけ更に厳しく要求されることであろう.はじめに戻って知能と外界センサを持つ広義の「精密癖ポット」には人間のアームハソドの例をみればわかるように必ずしも高剛性や低摩擦を要求されない.機構の不十分さは知能とセンサでカバーしてくれるからである.いわゆるメカトロニクスは機械と電子情報の結合であり, それは後者が機能を高め前者の働きの一部を代行することによって発展してきた.今後も電子情報技術の進歩が続く限りメカトロニクスにおける電子情報の比重が高まり知能的になるという傾向は変わらないであろう.精密ロボットも究極的には知能の活用を大いに図るべきであり, この観点から考えた基礎技術の研究開発が重要である.抄録全体を表示PDF形式でダウンロード (1066K) -
神谷 好承1985 年 51 巻 11 号 p. 2014-2019
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (1157K) -
三好 俊郎1985 年 51 巻 11 号 p. 2020-2027
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (1056K) -
竹下 光夫1985 年 51 巻 11 号 p. 2028-2033
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (10281K) -
浅川 和雄1985 年 51 巻 11 号 p. 2034-2039
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (4758K) -
中村 仁彦1985 年 51 巻 11 号 p. 2040-2046
発行日: 1985/11/05
公開日: 2010/02/16
ジャーナル フリーPDF形式でダウンロード (7980K) -
安部 和夫, 山崎 保範1985 年 51 巻 11 号 p. 2047-2052
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (13462K) -
鳥居 信利1985 年 51 巻 11 号 p. 2053-2058
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (1091K) -
津谷 裕子, 山中 一司, 水原 和行1985 年 51 巻 11 号 p. 2059-2063
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (954K) -
VIII.積分特性と微分特性田口 玄一1985 年 51 巻 11 号 p. 2064-2067
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPDF形式でダウンロード (794K) -
穴のない立体の場合古川 進1985 年 51 巻 11 号 p. 2071-2076
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーVarious Problems of constructing and processing polyhedra represented by the hierarchical tree structure of convex components have been approached by the authors for several years. An algorithm of generating the tree structures of polyhedra is discussed in this paper. To decompose a polyhedron into the smaller components may be necessary in the processes of constructing the structure. A new method for this type of problem, which is based on the idea of utilizing the boundary edge line loops between used and unused faces for making the convex hull of the original one, is presented for the case of a polyhedron without holes. The main feature of this method is (1) the polyhedron can always be decomposed uniquely, (2) no vertex is newly produced, and (3) the number of newly created components may not become so large.抄録全体を表示PDF形式でダウンロード (1307K) -
機械構造の知識表現岸 義樹1985 年 51 巻 11 号 p. 2077-2083
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーThis paper presents basic methods for making a conceptual design system based on knowl-edges of machines. Knowledges are classified to 5 classes such as MODEL, FORMULA, SAPCE, RULE, and GENERIC. MODEL, FORMULA, SPACE, RULE, and GENERIC represent knowl-edges about organized structure, mathematical form, spatial structure, logic procedure, and general principal respectively. Especially the knowledge representation of MODEL is argued. The organization of a machine is expressed hierarchically in 4 levels, from the top level FUNCTION, DEVICE, ELEMENT, and DETAIL. The FUNCTION is the work of a machine. The DEVICE is a name of the machine. The ELEMENT has parts, relations among parts, works of parts and relations, and evaluations of the machine. To convert the organization of a machine to knowledges, the core of the organization expressed in Japanese is picked up into a depth-first data format by experts. The depth is according to the hierarchy. The implemented software programed in PROLOG on LISP 1.5 translates the data into knowledges based on Minsky's frame ideas. Basic methods for utilization of knowledges are implemented in a Q & A software. The software programed in PROLOG on LISP 1.5 is equipped with a Japanese-like language interface for users.抄録全体を表示PDF形式でダウンロード (1570K) -
運動の性質と最適衝撃条件小泉 邦雄, 横山 恭男1985 年 51 巻 11 号 p. 2084-2089
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーThe study deals with repetitive impact motion of the two-degrees-of-freedom hammering system consisting of an exciter, an impacter and a rigid stop for improvement of a vibrating hammer. This paper presents properties of the impact velocity of the hammer, the amplitude of both bodies, many resonant frequencies of the vibration and the impact activity. The activity is estimated by impulse and amplitude ratio of the impacter to the exciter. The value depends on excitation frequency, setting gap of the stop, mass of bodies and stiffness of springs. It is resonant condition that two ratios of the natural frequency to the excitation one equal to the multitude of integer. The limited gap range and the colliding velocity fail nearby these resonances. Solutions of the optimum impact problem give us combinations of mass and stiffness at the peak activity. There are three peaks in the case of adjustable gap and the only one peak in fixed gap. Two peaks exist on estimation of the product of impulse and amplitude ratio. This system surpasses the one-degree-of-freedom hammering system about the activity.抄録全体を表示PDF形式でダウンロード (1372K) -
森 勇蔵, 本郷 俊夫, 東 保男, 杉山 和久, 山内 和人, 西川 和仁, 酒井 啓至1985 年 51 巻 11 号 p. 2090-2095
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーPhoton Factory needs a focusing mirror with high form accuracy of 0.01 μm/100 mm for utilizing SOR (Synchrotron Orbital Radiation). In order to finish a focusing mirror with such a high accuracy by NC EEM (Numerically Controlled Elastic Emission Machining), the measurement of the surface profile of preworked mirror should be made with enough accuracy. However, the measuring method or the measuring instrument with such a high accuracy of 0.01 μm/100 mm has not been developed yet. In the present study, the normal vectors at each points on the mirror surface are determined by making the incident light beam on the mirror surface and the reflected beam at that point coincident, the surface gradients at each points are calculated from the normal vector and the surface profile is obtained by integrating the gradients. The measuring instrument was constructed according to the above principle of measuring method. The surface profile of the mirror with the size of 100 mm square and with the radius of curvature of 5 550 mm was measured by the present instrument with the accuracy of 0.01 μm/100 mm.抄録全体を表示PDF形式でダウンロード (4063K) -
ピストンスラップの実験と検討松田 孝, 佐藤 元宥1985 年 51 巻 11 号 p. 2096-2101
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーEffect of inclined ring piston on piston slap reduction are studied and discussed experimentally in this paper. Inclined ring piston and experimental system on piston slap are designed and manufactured. Then, piston slap measurements are carried out in six kinds of piston crank devices equipped with known piston and five kinds of inclined ring pistons respectively. Their experimental results are compared with computation results of piston side thrust force and discussed. These results are summarized as follows. (1) The occurrence of severe piston slap is due to large magnitude and abrupt direction-variation of piston side thrust force. (2) Abrupt direction-variation of piston side thrust force can be removed by utilizing inclined ring piston instead of known piston, whose inclined direction angle is larger than 45° and smaller than 135°. (3) It is ascertained experimentally that the piston crank device, which is equipped with the above inclined ring piston, has no severe piston slap phenomena.抄録全体を表示PDF形式でダウンロード (1531K) -
測定誤差とその対策西川 喜八郎1985 年 51 巻 11 号 p. 2102-2108
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーThis paper describes measuring errors especially caused by displacement of the sample item which causes variation in the lens magnification ratiq and out-focus. The image shape of the video signal following defocus varies according to the nature of the projected back light. In some cases, if the light is diffused by the project lens, the measured dimension of the sample becomes larger than that of the focus point, regardless of the distance of the sample from the camera. Thus, the controlling of the light and the slice level are critical for good measurement. As a countermeasure, a telecentric optical system is very useful when the slice level is set midway between dark and light. The diameter of a telecentric stop can be made as small as 1.5 mm to 3 mm. By using this technique, it is possible to keep the measuring error within ± 1 pm when measuring φ 0.7 mm wire even in the case of a displacement 10 mm from the focus point. In another analysis of measuring moving sample, it has been reported that measuring errors are caused by image size variation which occurs because of the time needed for scanning the image. The total exposure time limits moving velocity of the sample affecting the defocus.抄録全体を表示PDF形式でダウンロード (3572K) -
最高工作精度試験の指標安井 武司, 加藤 辰朗, 折田 三弥彦, 吉田 博幸, 大浦 利夫, 丸山 久男1985 年 51 巻 11 号 p. 2109-2114
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーThis paper deals with a practical accuracy test procedure for NC lathes. Ratios of feed pitch component and the maximum component having longer pitch than the feed one of surface roughnesses are used for finding the highest practical accuracy of the lathes. Free cutting brass and diamond are used for the test workpieces and cutting tools respectively. 32 NC lathes are tested with the test procedure proposed and the test result showed that at first the accuracy is slightly deteriorated with used years but is sharply deteriorated and scattered when over 5 years. It is verified that the 95% confidence limits of the test results are less than 0.02 mm/rev.抄録全体を表示PDF形式でダウンロード (1142K) -
解析的方法による摩耗判定基準の設定樫村 幸辰1985 年 51 巻 11 号 p. 2115-2121
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーIn-process detection of tool wear have been attempted for adaptive control or unmanned operation of machine tools. This paper proposes a model based on the cutting data by the tool with flank wear land. In the model, stresses on flank wear land are related to the shear stress on the shear plane. The model and an energy method enabled to predict the cutting forces and the cutting force ratios (axial force to tangential force, radial force to tangential force) with the increase of tool flank wear land in turning. It is clarified that a resolution of the increase of tool flank wear land by cutting force ratios is 0.025-0.035 mm/%. The analytical method is applied to set a criterion for sensing of tool wear by means of the cutting force ratios.
The criterion set by analytical method is available to detect and control tool flank wear land.抄録全体を表示PDF形式でダウンロード (1602K) -
岡田 勝蔵, 吉田 誠1985 年 51 巻 11 号 p. 2122-2126
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリーThe aim of this paper is to develop new graphite-dispersed tin-base composite materials made by melting for dry bearing and to investigate the friction and wear on the sliding contact between new bearings and steels. The main results are as follows : (1) Hardness of new graphite-dispersed tin-base composite materials is larger than that of solid-state sintered ones. (2) Coefficient of friction and specific wear rate of the former composites are smaller than those of the latter ones.抄録全体を表示PDF形式でダウンロード (10459K) -
振動子傾斜角の影響財満 鎮雄, 鈴木 康夫, 加茂 進, 宇野 正美1985 年 51 巻 11 号 p. 2127-2132
発行日: 1985/11/05
公開日: 2010/02/16
ジャーナル フリーIn the screw vibration, vibration direction at the small end of the horn varies with the transducer inclination angle φ, in short, the ratio of torsional velocity component to vertical one changes. So, it is necessary to clear effects of φ. Vibration behavior, velocity and stress distribution were calculated and some exponential taper horns were made on the theory in the previous paper, and then effects of φ were examined by measuring the velocity or the displacement. In addition, glass drilling experiments were carried out by utilizing the base face of the small end of the horn, and usefulness of the ultrasonic drilling by screw vibration was examined. Following results are obtained : (1) As φ increases, the taper constant of the horn decreases, then the total length of the horn should be long. The vibration direction at the small end of the horn is equal to φ at the outside part of the horn, and gradually approaches to the vertical direction near the center of the horn. The suitable value of φ to generate perfect screw vibration is about 20-30°. (2) The machining rate shows the maximum value when the ratio of amplitude to mean diameter of abrasive grain is about 0.3, that is, the mean grain diameter is about 3-4 times amplitude. Suitable machining pressure in screw vibration is higher than that in longitudinal vibration, and surface roughness becomes somewhat finer. B4C abrasive grain was recognized somewhat good effect on both machining rate and surface roughness.抄録全体を表示PDF形式でダウンロード (3789K) -
友田 進, 菅原 章, 稲垣 耕司1985 年 51 巻 11 号 p. 2133-2138
発行日: 1985/11/05
公開日: 2009/06/30
ジャーナル フリー黄銅のいわゆるラップ焼けは単なる加工面の酸化ではないと推測し, これを証明するためにいくつかの実験を行った結果, 次のことが明らかになった.
(1) 蛍光X線分析によってラッピングに用いたラップと砥粒の元素が加工面に検出された.
(2) ラップ焼けを生じた試料は水素で還元しても加工面が変色したままで素地色を取り戻さない.
(3) ラップ焼けを生じた加工面の断面観察によって, 工作物表面にラップや砥粒からの破砕粉および加工粉からなる微小粉の層が確認された.
(4) 酸化しにくい一つの方法として油中ラヅピソグを行ったがラップ焼けは発生した.
これらのことから, 本実験において黄銅のいわゆるラヅプ焼けは工作物表面に生じる酸化膜が主な原因ではなく, ラップや砥粒からの破砕粉および加工粉の一御部がラッピソグ過程で工作物表面に粘着あるいは埋め込まれて微小粉の層をつくる現象であると推論した.抄録全体を表示PDF形式でダウンロード (9208K)
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