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1. 发明专利

JPH02185366A POLISHING METHOD 失效
公开(公告)号：JPH02185366A
公开(公告)日：1990-07-19
申请号：JP684989
申请日：1989-01-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： HARA SEIICHI , NAKASUJI TOMOAKI , DASAI YUKIHISA , MATSUNAGA HIROYUKI
IPC分类号： B24B37/00 , B24B37/30 , B24B41/06
摘要： PURPOSE:To improve productivity by sticking the back part of each body to be polished to a holding member via an adhesive in the state of holding plural pieces by arranging on the same plane respectively the back part of the body to be polished and each recessed groove bottom face to the vacuum chuck sucking and holding the face to be polished side of the body to be polished. CONSTITUTION:Dimensions 40, 41, 43 are measured on each body 1 to be polished, these select about the same body 1 to be polished and are sucked by a vacuum chuck 51. At this time, the body 1 to be polished faces the polishing face 2 to the vacuum chuck main body 51 side and is fitted by facing an apex point 2a into the recessed part of a suction part 55. At this time, due to the body 1 to be polished being about the same in its dimensions 40, 41, 43, the reference face 56 and planes 33, 57, 58 of the chuck 51 are all in a parallel state. In this state, a polishing body holding plate 4 is sticked to the back face 57 of the body 1 to be polished via a heat hardening adhesive 5 and the suction of the chuck 51 is continued until the body 1 to be polished and holding plate 4 are surely cladded. Consequently the inclination of the body 1 to be polished by the contraction phenomenon caused in case of the adhesive 5 being solidified is prevented.

2. 发明专利

JPH01121107A CURVED SURFACE MACHINING DEVICE 失效
公开(公告)号：JPH01121107A
公开(公告)日：1989-05-12
申请号：JP27732287
申请日：1987-11-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKASUJI TOMOAKI , KODERA SUNAO , HARA MOICHI , MATSUNAGA HIROYUKI
IPC分类号： B23B5/36
摘要： PURPOSE:To enable the machining device to perform machining operations regardless of the length of the focal distance of a paraboloidal shape by installing an inching rotary table rotating at a specified angle of rotation to a Y axis control table, and providing a sample holder fixing its one end on the inching rotary table and holding a work on the other end. CONSTITUTION:An inching rotary table rotating around its central axis at a specified angle is installed on a Y axis control table 6b of a two-axes control table 6, and one end of a sample holder 8 is fixed on the table 7 and the other end of it holds a work 2. A spindle 1 to which a cutting tool is attached is arranged near the two-axes control table so that the rotary shaft is at right angles to X direction of a X axis control table 6a and Y direction of the Y axis control table 6b, thus a paraboloidal shape is formed by the rotation of the table 7. Thus, the focal distance of the paraboloidal shape formed on the work 2 can be set in accordance with the distance from the center of rotation of the table 7 to the position of the work 2 simply by changing the length of the end side of the sample holder 8 holding the work 2.

3. 发明专利

JPS6487135A HIGH-PRECISE LATHE MACHINING METHOD 失效
公开(公告)号：JPS6487135A
公开(公告)日：1989-03-31
申请号：JP24271987
申请日：1987-09-29
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODERA SUNAO , NAKASUJI TOMOAKI , HARA MOICHI , MATSUNAGA HIROYUKI
IPC分类号： B23Q15/013
摘要： PURPOSE:To form a high-precise shape without needing primary reference surface, by a method wherein a premaching surface shape is measured, and a cutting amount is corrected according to a surface shape serving as an absolute precision reference. CONSTITUTION:A non-contact displacement gauge 3 is situated ahead, in an advancing direction, of a tool 1, and a distance between a premachining surface 5a right before machining and a tool rest 4 is determined. In which case, the tool rest 4 is moved in a direction X at a specified speed V, and the tool 1 is situated in a position of X=Vt at a time (t). In machining, a premachining surface is previously determined by a shape measuring device, and by controlling a fine cut device 2 so as to satisfy a formula of U(t)=S(t)+f(Vt+d)-Z0(x), wherein f(x) is a premachining surface, U(t) is a cutting amount, S(t) is an output of the displacement gauge 3, and Z0(x) is a desired machining shape, a desired finish surface can be formed even if an error is produced in a cutting direction. Since an absolute reference is set according to a premachining surface, this method eliminates the need for a primary reference surface and enables formation of a high-precise shape.

4. 发明专利

JPS63256354A HIGH ACCURACY POLISHING METHOD FOR COMPOSITE MATERIAL 失效
公开(公告)号：JPS63256354A
公开(公告)日：1988-10-24
申请号：JP9272087
申请日：1987-04-14
申请人： MITSUBISHI ELECTRIC CORP
发明人： YAMASHITA MIKIO , HARA SEIICHI , MATSUNAGA HIROYUKI
IPC分类号： B23Q3/08 , B24B37/04 , B24B37/30
摘要： PURPOSE:To provide high accuracy in finished configuration by heating the surface of a workpiece while gradually cooling and bonding the workpiece and thereafter polishing when the workpiece consisting of a plurality of materials having different coefficients linear expansion is bonded to an attached surface plate through thermoplastic adhesives. CONSTITUTION:Thermoplastic adhesives 3 like electrowax are thinly uniformly applied on an attached surface plate 2 and a workpiece 1 formed of a plurality of materials having different coefficients of linear expansion is mounted on said adhesives pressed and stretched by hands to provide uniform adhesion. Then, the surface of workpiece 1 is heated by an infrared ray heater 4 while being gradually cooled and bonded. Then, the warping of workpiece 1 caused by a difference between room temperature and bonding temperature is corrected by the infrared ray so that the workpiece 1 is bonded to the attached surface plate 2 while keeping the configuration under the room temperature. Thus, high accuracy adhesion can be provided and high accuracy configuration can be polished.

5. 发明专利

JPS63139601A SURFACE MACHINING FOR LINBO3 SINGLE CRYSTAL 失效
公开(公告)号：JPS63139601A
公开(公告)日：1988-06-11
申请号：JP28543086
申请日：1986-11-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODERA SUNAO , SAKAI SHIRO , HARA SEIICHI , MATSUNAGA HIROYUKI
IPC分类号： B23B1/00
摘要： PURPOSE:To improve flatness and surface roughness of a cut surface, by a method wherein surface cutting is effected so that a cutting direction can be specified in a direction in which machinability is most excellent. CONSTITUTION:When a workpiece 2 is secured to a work holder 4, provided the advancing direction of the workpiece 2 is B and a radial direction extending toward the rotation center of a main shaft 1 is A, a cutting direction C is extended in reverse direction to the advancing direction B, and an angle of the cutting direction with an axis Y is set to 60 deg.. The holder 4 is secured to the tip of the main shaft 1, clockwise rotation is exerted on the main shaft 1, and a feed from the outside of the workpiece 2 toward a center is exerted, as shown by an arrow mark, on a bite 3 having a diamond tip 3a. As noted above, by performing a cutting work in a way that the cutting direction c is specified, uniform and excellent flatness and surface roughness can be provided. An angle of the direction C with the axis Y may be set to 180 deg. or 300 deg..

6. 发明专利

JPS63118000A METHOD FOR WORKING SURFACE OF LINBO3 SINGLE CRYSTAL 失效
公开(公告)号：JPS63118000A
公开(公告)日：1988-05-21
申请号：JP26316786
申请日：1986-11-05
申请人： MITSUBISHI ELECTRIC CORP
发明人： NAKASUJI TOMOAKI , KODERA SUNAO , HARA SEIICHI , MATSUNAGA HIROYUKI
IPC分类号： C30B33/00 , C30B29/30
摘要： PURPOSE:To obtain a uniform worked surface having excellent flatness and face roughness by using the +Z direction as the standard, and determining the direction at a specified angle in the counterclockwise direction as the working direction at the time of working a Y cut face of an LiNbO3 single crystal. CONSTITUTION:A work 2 of the LiNbO3 single crystal, the Y cut face of which is to be worked, is fixed to a work holder 4 with a wax in one of the directions at 40+ or -5 deg., 135+ or -5 deg., 225+ or -5 deg., and 320+ or -5 deg. in the counterclockwise direction with the +Z direction as the standard cutting direction. The work holder 4 is then fixed to a tip of a main spindle 1 of a lathe by a vacuum chuck utilizing negative pressure. The spindle 1 is then rotated clockwise, a bite 3 provided with a diamond chip 3a on its tip is moved in the direction as shown by the arrow 5 from the outside of the work 2 to the center, a face 2a to be worked is successively turned from the outer periphery of the work 2, and a turned face 2b is formed.

7. 发明专利

JPS63109901A CUTTING METHOD OF LINBO3 MONOCRYSTAL 失效
公开(公告)号：JPS63109901A
公开(公告)日：1988-05-14
申请号：JP25736386
申请日：1986-10-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： KODERA SUNAO , HARA SEIICHI , SUZUKI HIROFUMI , MATSUNAGA HIROYUKI
IPC分类号： B23B1/00
摘要： PURPOSE:To uniform all the cutting surfaces and make the surface roughness excellent by cutting monocrystal Y cutting surfaces keeping the cutting feed rate constant in the specified range. CONSTITUTION:An LiNbO3 monocrystal Y cutting surface shall be cut keeping the cutting feed rate constant in the range of 0.1mum/rev. or more to 0.5mum/rev. or less to reduce cutting stress and equalize the relation to cleavage planes in all directions. This leads to the equalization of all the cutting surface and the securement of excellent surface roughness and form accuracy and enables the load of polishing after machining, when required, to be reduced.

8. 发明专利

JPS55164436A AUTOMATIC WIRE FEEDING DEVICE FOR WIRE CUT ELECTRIC SPARK EROSION MACHINE 失效
公开(公告)号：JPS55164436A
公开(公告)日：1980-12-22
申请号：JP6965779
申请日：1979-06-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： HARA SEIICHI , OZAKI HIROCHIKA , MATSUNAGA HIROYUKI , KURAHASHI YASUNORI
IPC分类号： B23H7/10
摘要： PURPOSE:To enable to feed a wire automatically by a method wherein the wire is clamped and a work is retreated to an initial working position when the wire is disconnected or cut, subsequently, the wire is sent out through the work and a wire guiding device. CONSTITUTION:When a wire electrode 7 is disconnected or cut, the electrode 7 is clamped by rollers 13, 14 and a work 1 is retreated to an initial working position thereof by motors 18, 19. Subsequently, a guide hole of an upper wire guiding device 3 is opened by driving cylinders 5, 6. Under this condition, the rollers 13, 14 are rotated by driving a motor 15 and the wire electrode 7 is sent out to pass through the work 1 and the opened portion of the wire guiding device 3. Thereafter, a chuck 20 is lowered by driving a cylinder 21 and grasp the wire electrode 7 protruding above the upper wire guiding device 3, then, the wire electrode 7 is lifted up by driving the cylinder 21. Successively, the electrode 7 is forcibly fit and secured to a reel 9 and thus a refeeding of the electrode 7 is completed.

9. 发明专利

JPS5217230A GLOWWDISCHARGE HEATING DEVICE 失效
公开(公告)号：JPS5217230A
公开(公告)日：1977-02-09
申请号：JP9355675
申请日：1975-07-31
申请人： MITSUBISHI ELECTRIC CORP
发明人： KOMURA KOUJI , MATSUNAGA HIROYUKI , ITOU KOUJI
IPC分类号： F24H1/10 , F24H1/22 , H05B7/00 , H05B7/16
摘要： PURPOSE:Too protect the heated portions of the electrodes from thermal strain, by supporting them at their one end.

10. 发明专利

JPS5169254A Hiitopaipu 失效
公开(公告)号：JPS5169254A
公开(公告)日：1976-06-15
申请号：JP14269874
申请日：1974-12-12
申请人： Mitsubishi Electric Corp
发明人： TANAKA TOSHIJI , KAMIMURA KAZUHIRO , MATSUNAGA HIROYUKI
IPC分类号： F28D15/02 , F28D15/00

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