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1. 发明专利

JPH09300120A JIG FOR MACHINING GROOVE AT INNER SURFACE OF HOLE 失效
公开(公告)号：JPH09300120A
公开(公告)日：1997-11-25
申请号：JP14984696
申请日：1996-05-21
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： USUI MOTOKI , MATSUDA TETSUYA
IPC分类号： B23D5/02 , B23B29/02 , B23B41/12 , B23C3/28 , B23D13/00 , F16C33/10
摘要： PROBLEM TO BE SOLVED: To enable a jig for machining a groove at an inner surface of a hole capable of performing a machining of the groove in a high precision manner to be efficiently obtained by a relative simple means. SOLUTION: A machining section 14 is provided with an axial machining surface 14a and a circumferential machining surface formed by a simple axial machining and a simple circumferential machining, thereby the machining section 14 can be formed easily and in a high precision manner, a machining accuracy of a tool itself is increased and at the same time, a dynamic pressure generating groove 21 formed by the tool can be formed in a high precision manner.

2. 发明专利

JPH09253907A MACHINING TOOL HOLDER 失效
公开(公告)号：JPH09253907A
公开(公告)日：1997-09-30
申请号：JP7158196
申请日：1996-03-27
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： MATSUDA TETSUYA
IPC分类号： B23B21/00 , B23B29/04
摘要： PROBLEM TO BE SOLVED: To improve the reproducibility of a mounting position of a machining tool while simply carrying out the fine adjustment of the mounting position in a working tool holder for mounting the machining tool to a machining tool or the like to be adjustably turned horizontally and vertically. SOLUTION: A machining tool holder 1 supporting the machining tool to be adjustably turned horizontally and vertically has a manual swivel stage mechanism 4 supporting the working tool 7 capable of being turned, a manual θstage mechanism 3 supporting the swivel stage mechanism 4 capable of being horizontally turned and a base stand 2 supporting the θ stage mechanism 3. The base stand 2 is fixedly mounted to a machine tool like a lathe. Since the mounting angular position of the machining tool 7 (horizontal turning angular position, upward and downward inclination angular position) is adjusted by utilizing these manual precision stages, the reproductiveness of the mounting position is improved and the fine adjustment of the mounting position can be simply carried out.

3. 发明专利

JPH10141358A DYNAMIC PRESSURE BEARING DEVICE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH10141358A
公开(公告)日：1998-05-26
申请号：JP31295496
申请日：1996-11-08
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： USUI MOTOKI , MATSUDA TETSUYA
IPC分类号： B23Q15/00 , F16C17/02
摘要： PROBLEM TO BE SOLVED: To obtain the groove length of a dynamic pressure generating groove correctly and easily using a normal NC lathe. SOLUTION: Annular groove parts 15 are provided to communicate bent juction parts of first inclined groove parts 13a and second inclined groove parts 13b extended bending in open angle shape, over the whole periphery. The end positions on the bent juction part side of the respective inclined groove parts 13a, 13b are thereby specified by the edges of the annular groove parts 15, and even with the generation of slight dislocation of each dynamic pressure generating groove 13 or dispersion in the formed length of the inclined groove parts 13a, 13b, the formed length of the inclined groove parts 13a, 13b can be obtained with accuracy by forming the annular grooves 15.

4. 发明专利

JPH10141359A DYNAMIC PRESSURE BEARING AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH10141359A
公开(公告)日：1998-05-26
申请号：JP31295596
申请日：1996-11-08
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： USUI MOTOKI , MATSUDA TETSUYA
IPC分类号： B23Q15/00 , F16C17/02
摘要： PROBLEM TO BE SOLVED: To manufacture a dynamic pressure generating groove easily with a numerically controlled lathe by forming this dynamic pressure generating groove with an inclined groove part obliquely extending at the specified angle with the circumferential direction, and a circumferential groove part extending in the circumferential direction from one end of the inclined groove part. SOLUTION: A dynamic pressure generating groove 13 has a pair of first and second inclined groove parts 13a and 13b with almost symmetrical groove form, and it is also provided with a central part circumferential groove 13c where these paired inclined groove parts 13a and 13b are joined together. In this circumferential groove 13c, these first and second inclined groove parts 13a and 13b, extending as far as the specified length in the circumference, and obliquely extend to a groove center line X. These first and second inclined groove parts 13a and 13b make into the specified angle θ with the circumferential direction, and their ends at the downstream side in the rotational direction C of each turning shaft of these inclined groove parts 13a and 13b are joined together via the circumferential groove part 13c and interconnected with each other. With this constitution, this dynamic pressure generating groove 13 is easily formable by a numerically controlled lathe.

5. 发明专利

JPH08281339A MANUFACTURING DEVICE FOR FLUID BEARING 失效
公开(公告)号：JPH08281339A
公开(公告)日：1996-10-29
申请号：JP11015295
申请日：1995-04-11
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： GOMYO MASATO , MATSUDA TETSUYA
IPC分类号： F16C33/14 , B21D17/00
摘要： PURPOSE: To prolong a tool life, and to improve quality of a groove depth of a bearing sleeve. CONSTITUTION: The abutting surface of balls 3A and 3B arranged on the outer peripheral surface of a shaft 1 for groove forming and a fixing pin 6 regulating a projecting position in the outside direction of these balls 3A and 3B, is formed on a plane. Consequently, the contact area of the balls 3A, 3B and the fixing pin 6 is remarkably increased. Also, the rotations of the balls 3A and 3B are blocked, the contact surface pressure of the contact surface of the balls and the fixing pin 6 is remarkably reduced, the effect of a plastic deformation in the contact part of the balls 3A, 3B and the fixing pin 6 is eliminated, and the wear of the balls 3A, 3B and fixing pin 6 is reduced.

6. 发明专利

JPH10151515A GROOVE FORMING TOOL FOR BEARING 失效
公开(公告)号：JPH10151515A
公开(公告)日：1998-06-09
申请号：JP32343396
申请日：1996-11-19
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： USUI MOTOKI , MATSUDA TETSUYA
IPC分类号： B23D5/02
摘要： PROBLEM TO BE SOLVED: To form a groove for a bearing in a desired shape and high precision and to reduce the cost of a tool. SOLUTION: A cutting blade 8 is machined in a desired shape, easily and in high precision by separately machining the cutting blade 8 before fitting a groove forming member 7 in an insertion part 2 by making the insertion part 2 to be inserted into a bearing hole and the groove forming member 7 having the cutting blade 8 separate bodies, and when the cutting blade 8 is abrased or broken, only the groove forming member 7 is exchanged. When groove width is changed, onlt the groove forming member 7 is exchanged with the groove forming member 7 having the cutting blade 8 in accordance with the groove width, when the groove width is the same and a groove angle is changed, only the groove forming part 7 is reinstalled at an installing angle in accordance with the groove angle, when groove depth is changed, the groove forming member 7 is reinstalled by exchanging it with a fixing pin 6 an outer peripheral surface with which one end part 7a of the groove forming member 7 makes contact of which becomes an outside diameter in accordance with the groove depth, etc., when it is abrased or broken, only the cutting blade 8 is exchanged, and it is not necessary to prepare various kinds of too main bodies in accordance with the groove width, the groove depth and the groove angle.

7. 发明专利

JPH08294733A DEVICE AND METHOD FOR MANUFACTURING FLUID BEARING 失效
公开(公告)号：JPH08294733A
公开(公告)日：1996-11-12
申请号：JP12048595
申请日：1995-04-21
申请人： SANKYO SEIKI SEISAKUSHO KK
发明人： GOMYO MASATO , MATSUDA TETSUYA
IPC分类号： F16C33/14 , B21D17/00
摘要： PURPOSE: To improve the service life of a tool, and to arbitrarily set the depth and shape of a groove of a bearing sleeve by reducing the wear and the plastic deformation of a groove forming part and a fixing pin or the like of a manufacturing device of a fluid bearing. CONSTITUTION: The shape of a groove forming part is freely set by making a tip part of a columnar worked member 4 arranged so as to be projected on the outer circumferential surface of a shaft 1 in which the groove is formed of the shape corresponding to the sectional shape of the groove forming part, and the wear is reduced by employing the columnar worked member 4 to prevent the movement of the rotation, etc.

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