专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH07150204A DIE FOR FORMING HERICAL GEAR 失效
公开(公告)号：JPH07150204A
公开(公告)日：1995-06-13
申请号：JP29798993
申请日：1993-11-29
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI
IPC分类号： B22F5/08 , B22F5/00
摘要： PURPOSE:To provide a die for forming a helical gear without developing galling and breakage of the die in the case of developing the deflection, etc., to a lower punch and an upper punch, at the time of forming the helical gear by compacting the powdery raw material, in the die with the lower punch and the upper punch. CONSTITUTION:The die for forming the helical gear is composed of the lower punch 1 fixed and held, the die 2 and the upper punch 3 rotatably held, a guide plate 4 shiftably held to the vertical direction, guide pins 5 vertically arranged to the guide plate 4, stoppers 6 for stopping the shifting of the guide plate 4 by abutting on the tip parts 51 of the guide pins 5 at the position matching with the leads (a), (b) of the die 2 and the upper punch 3, a strain sensor 7 arranged at least at the one side of the upper punch 3 and the lower punch 1 and detecting the detecting the developed strain and height adjusting mechanism 8 for adjusting the height of the stoppers 6 or the guide pins 5 based on a signal from the strain sensor 7.

2. 发明专利

JPH06128607A SIZING DIE 失效
公开(公告)号：JPH06128607A
公开(公告)日：1994-05-10
申请号：JP27433092
申请日：1992-10-13
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI
IPC分类号： B22F3/24 , B22F5/12
摘要： PURPOSE:To provide a die capable of perfectly sizing the outer and inner diameters of an article to be treated. CONSTITUTION:The pressing face 10 of a punch 5 at its end has a stopper face 10b opposed to a periphery correcting face 1a. A cam pulley W to be treated is abutted on the pressing face 10 of the punch 5 and brought up. Since the pressing face 10 has the stopper face 10b, the lower peripheral side of the cam pulley W is not moved inward becuase of the force of constraint only by the periphery correcting face 1a and the residual bending stress in press fitting.

3. 发明专利

JPS61104005A Direct molding and fixing method of green compact molding to shaft material 失效
标题翻译：绿色紧固模具直接成型和固定方法
公开(公告)号：JPS61104005A
公开(公告)日：1986-05-22
申请号：JP22269184
申请日：1984-10-23
申请人： Toyota Motor Corp
发明人： NOMURA TADASHI , IMAHASHI KUNIHIKO , NAGAREI ICHIRO , TAKEMOTO YOSHIHIDE , TANAKA KEIZO
IPC分类号： B22F7/08 , B22F3/02 , B22F3/03 , B22F3/035
摘要： PURPOSE: To fix plural green compact moldings to the optional positions of one shaft member with a simple stage by dividing vertically an upper or lower punch constituting an ordinary metallic mold so that the green compact moldings fixed to the shaft member can be freely inserted to the central part of a block fixing the punches.
CONSTITUTION: The shaft material 1a is freely vertically movably mounted to upper and lower mounting members 3, 2 and is inserted to the lower punch 4 which is fixed to the prescribed position and is integrally molded. The punch 4 is inserted slightly into a molding die 6. The upper punch 5 is vertically divided and is slidably fixed to the bottom surface of the block 10 having a space 12 for insertion of the shaft member. Metallic powder 7 for powder metallurgy is packed into a recess (c) delineated by the die 6, the punch 4 and the shaft material 1a in order to fix the 2nd green compact molding to the material 1a. The punch 5 is lowered in the divided state together with the block 10 so as to jump the existing molding 8 and then the molds are mated. The punch is further lowered to mold and fix directly the powder 7 to the material 1a. The die 6 is thereafter lowered and after the green compact molding is removed therefrom, the punch 5 is divided and the material 1a is raised up to the fixing position of the next molding.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过垂直分割构成普通金属模具的上冲头或下冲头，将多个生坯紧凑模制件固定到一个轴构件的可选位置，使得固定到轴构件上的生坯紧凑模制件可以自由地插入到块的中心部分固定冲孔。构成：轴材1a自由上下移动地安装在上下安装构件2,3上，并被插入到固定在规定位置的下冲头4并整体成型。冲头4被轻轻地插入成型模具6中。上冲头5被垂直分割，并且可滑动地固定在具有用于插入轴构件的空间12的块体10的底表面上。用于粉末冶金的金属粉末7被填充到由模具6，冲头4和轴材料1a描绘的凹部（c）中，以将第二生坯成型件固定到材料1a上。冲头5与块10一起分开地下降，以便跳过现有的模制件8，然后将模具配合。将冲头进一步降低成型，并将粉末7直接固定在材料1a上。然后将模具6降低，并且在从其中取出生坯紧密模制之后，将冲头5分开，将材料1a升高到下一个模制件的固定位置。

4. 发明专利

JP2000266164A METHOD AND DEVICE FOR ASSISTING DESIGN OF TAPERED TAPER CAM 失效
公开(公告)号：JP2000266164A
公开(公告)日：2000-09-26
申请号：JP7130199
申请日：1999-03-17
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI , NAGAI HIDEYUKI
IPC分类号： F16H53/00 , G06F17/50
摘要： PROBLEM TO BE SOLVED: To efficiently form a model of a tapered taper cam having high precision. SOLUTION: A model of a cam is automatically produced by giving only contour shapes of respective end surfaces 110, 115 of a cam to a model forming part. The theoretical coordinates of the cam surfaces in the central positions of both end surfaces 110, 115, namely, the theoretical coordinate points 120 are found over the circumference on the basis of the designing conditions of the cam. The distribution of errors between respective theoretical coordinate points 120 and the formed model cam surface 125 are found, a straight line indicative of a theoretical cam surface to be found from the designing conditions is added as the restraint conditions of the model in relation to the position in which the error is maximum, and the model is again formed by the model forming part so as to satisfy the conditions. Addition of the restraint conditions and reformation of the model are repeated until the errors fall into an allowable value or less.

5. 发明专利

JPH09324204A METHOD FOR MOLDING DOUBLE LAYER GREEN COMPACT MOLDING 失效
公开(公告)号：JPH09324204A
公开(公告)日：1997-12-16
申请号：JP14019996
申请日：1996-06-03
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI , HARADA KOJI
IPC分类号： B30B11/02 , B22F7/06
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of the crack of a double layer green com pact molding or sintered compact by preventing the generation of a shearing stress in molding. SOLUTION: First powder is packed into the first cavity of a die and is previously compressed under prescribed load to form a precursor 201. Second powder 202 is packed into a second cavity adjacent to this precursor 201 in its thickness direction. The molding is formed by simultaneously compressing the precursor 201 and the second powder 202 at the same stroke length. Since the precursor 201 and the second powder 202 are compressed simultaneously at the same stroke length, the shearing stress does not act between the layers of both.

6. 发明专利

JPH05179304A POWDER COMPACTING MOLD 失效
公开(公告)号：JPH05179304A
公开(公告)日：1993-07-20
申请号：JP34675091
申请日：1991-12-27
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI , TAKEMOTO YOSHIHIDE , HOSHINA EISUKE
IPC分类号： B22F3/02 , B22F3/035 , B22F5/00 , B22F5/10 , B22F5/12
摘要： PURPOSE:To successively form a cylindrical compact with high coaxiality while facilitating assembling. CONSTITUTION:An outer die 23 and a core rod 24 are integrated and fixed by a bridge-shaped connecting part 25b laid on a part of the outer surface of the core rod 24 and on a part of the inner surface of the outer die 23, and the foot 26b of a lower punch 21 is protruded outward from an insertion hole 25c adjacent to the connecting part 25b. The outer die 23 and the core rod 24 are integrated and fixed by the connecting part 25b through the insertion hole 25c, hence the outer die 23 and the core rod 24 are not moved in the radial direction, and the outer die 23 and the core rod 24 are vertically moved with respect to the lower punch 21.

7. 发明专利

JPS6196006A Direct compacting and fixing method of compacted body to shaft material 失效
标题翻译：压缩体直接挤压和固定方法
公开(公告)号：JPS6196006A
公开(公告)日：1986-05-14
申请号：JP21752384
申请日：1984-10-17
申请人： Toyota Motor Corp
发明人： NAGAREI ICHIRO , IMAHASHI KUNIHIKO , TAKEMOTO YOSHIHIDE , TANAKA KEIZO , NOMURA TADASHI
IPC分类号： B22F7/08 , B22F3/02 , B22F3/03 , B22F3/035
摘要： PURPOSE: To compact and fix a compacted body directly to arbitrary position of a shaft material, by packing metal powder material for powder metallurgy in a bottom closed and a hollow cylindrical cavity demarcated by a shaft material movable vertically and dividable compacting die, and compacting it.
CONSTITUTION: The shaft material 8a inserted freely into a hole 10 of pressing plates 1, 2 is attached and held to a mounting base 6 for shaft material in a pressing plate 5, a compacting die 4 dividable vertically is joined while being adapted to position where the compacted body 7 is fixed to grasp the material 8a, and the bottom closed hollow cylindrical cavity 4a is demarcated between them. Next, the metal powder material 9 for powder metallurgy is packed n the cavity 4a, compacted by bottom surface thereof and a compacting punch 3 to compact and fix the body 7 to the material 8a directly. Said material 8a is moved, said process is repeated at arbitrary position to obtain a shaft member 8 to which plural bodies 7 are compacted and fixed directly, inexpensively and with high productivity.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：将压实体直接固定在轴材的任意位置，通过将底部封闭的金属粉末材料包裹在底部闭合的中空圆柱形腔中，并可垂直移动并分割成压实模具，并将其压实。构成：将自由地插入按压板1,2的孔10中的轴材8a安装并保持在用于轴材的安装基座6的按压板5中，可垂直分割的压实模具4接合，同时适于位置压实体7被固定以抓住材料8a，并且底部封闭的中空圆柱形空腔4a在它们之间被划定。接下来，用于粉末冶金的金属粉末材料9被填充在由其底表面压实的空腔4a和压实冲头3中，以将主体7直接压紧并固定到材料8a。所述材料8a移动，所述过程在任意位置重复，以获得轴构件8，多个体7被直接，低成本地且以高生产率压实和固定到该轴构件8。

8. 发明专利

JPS6166609A Method of molding double layer molded shape 失效
标题翻译：成型双层成型的方法
公开(公告)号：JPS6166609A
公开(公告)日：1986-04-05
申请号：JP19019184
申请日：1984-09-11
申请人： Toyota Motor Corp
发明人： NOMURA TADASHI , UEDA KATSUHIKO , TAKEMOTO YOSHIHIDE
IPC分类号： B32B13/00 , B28B3/02 , B28B13/02

9. 发明专利

JPH0625706A POWDER COMPACTING METHOD 失效
公开(公告)号：JPH0625706A
公开(公告)日：1994-02-01
申请号：JP20307092
申请日：1992-07-07
申请人： TOYOTA MOTOR CORP
发明人： NOMURA TADASHI
IPC分类号： B22F3/02 , B22F3/03 , B22F3/035 , B30B11/02
摘要： PURPOSE:To miniturize and simplify a powder transfer mechanism by utilizing a press lower ram. CONSTITUTION:A die 10 is movably arranged on a die holder 5 linked with a press lower ram 1, a fixed lower punch 13 and a floating lower punch 14 are arranged on a positioning punch plate 4, the lower punch 14 is supported by a cylinder device 16 placed in the punch plate 4, one end of a connecting rod 22 linked with the press lower ram 1 is positioned in the bore 16a of the cylinder device 16, a powder P is held between the lower punch 14 and a floating upper punch 32 and partially moved, the piston 19 of the cylinder device 16 is abutted on the rod 22 to exert an ascending force of the press lower ram 1 on the powder which is thereby preformed, and the preform is finally compacted by stopping the descending lower punch 14 by a stopper 24.

10. 发明专利

JPH05171208A CONTINUOUS CIP MOLDING METHOD 失效
公开(公告)号：JPH05171208A
公开(公告)日：1993-07-09
申请号：JP34440591
申请日：1991-12-26
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： NOMURA TADASHI , TAKAHASHI KAZUHIKO , YAMAGUCHI TOSHIYA , SAITO TAKU , FURUTA TADAHIKO
IPC分类号： B22F3/02 , B22F3/03 , B22F3/035 , B28B3/00 , B30B5/02 , B30B5/06 , B30B15/02
摘要： PURPOSE:To provide a continuous CIP molding method which is short in cycle time and high in production efficiency. CONSTITUTION:Powder is packed into the inside surfaces of a pair of rubber belts 1a, 1b connected with a plurality of bisected rubber molds 2 respectively via highly rigid connecting parts 3 by sliding wedge-shaped slopes 14a having powder supply holes 14b and superposing these belts on each other at the front ends thereof. CIP molding is executed while the connecting parts 3 are held pressed and clamped by pressure containers 17, 18. The rubber belts 1a, 1b superposed on each other are separated and moldings are taken out of the rubber molds 2. The above-mentioned stage is continuously executed while the rubber belts 1a, 1b are intermittently moved at a prescribed pitch each.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式