Mitsui High-tec Incorporated

Ngk Insulators, Inc.

Other

Satoshi Matsubayashi

Hirotoshi Mabu

Katsumi Amano

Atsushi Shiraishi

Hiroyuki Tsuji

Kazumasa Kitamura

Motoo Noritake

Hayato Nakayama

Yukio Matsunaga

Yukihisa Takeuchi

Yusuke Hasuo

Go Kato

Akira Nagai

Iwao Myojin

Jin Oda

Yoshinori Yamaguchi

Yusuke Eto

Takeshi Sato

Kiyohisa Maki

Toshihiko Ezaki

Kouji Fukunaga

Syusaku Kabe

Shusaku Kabe

Masumori Toyonaga

A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.

Method of manufacturing stacked core with adhesive

A method includes arranging and clamping a laminated iron core body between a receive unit and a mold unit that includes a resin pool part, the laminated iron core body including a plurality of laminated iron core pieces and a resin hole pierced in the lamination direction, with the laminated iron core body being clamped, extruding a resin of an inside of the resin pool part using a plunger and injecting the resin into the resin hole, after curing the resin in the resin hole, separating unwanted resin from the plunger by moving the plunger by a given distance in a direction away from the laminated iron core body before the laminated iron core body with unwanted resin is detached from the mold unit, and after separating the unwanted resin from the plunger, moving the plunger to the side of the laminated iron core body.

Method for injecting resin into laminated iron core

An apparatus includes a mold unit and a receive unit which clamp a laminated iron core body from both sides in a lamination direction, the laminated iron core body including a plurality of laminated iron core pieces and a resin hole pierced in the lamination direction, a plunger which extrudes a resin of an inside of a resin pool part formed in the mold unit, and a cull plate arranged between the laminated iron core body and the mold unit. The cull plate includes a close contact part with the resin on a side opposed to the plunger, the close contact part including a projection projected to a side of the plunger beyond a groove bottom of a runner formed in the cull plate, or a recess recessed to a side of the laminated iron core body beyond the groove bottom of the runner.

Apparatus and method for injecting resin into laminated iron core

A laminated rotor core () wherein permanent magnets () are inserted in respective magnet insertion holes () is disposed between and pressed by an upper die () and a lower die (). The upper die () has resin reservoir pots () provided above the laminated rotor core () and at positions corresponding to the respective magnet insertion holes (). Raw resin material put in the resin reservoir pots () is heated by the upper die (). Subsequently, the resin material in a liquefied state is ejected from the resin reservoir pots () by plungers () that are inserted and moves vertically in the resin reservoir pots () and is directly filled in the magnet insertion holes (). Consequently, the respective magnet insertion holes () are filled with the resin material more evenly and highly reliable products can be supplied at low cost.

Method of resin sealing permanent magnets in laminated rotor core

A separation apparatus for a laminated core is configured to separate an annular laminated core, which includes a plurality of core pieces each of which includes a yoke portion and a tooth portion extending from the yoke portion in a direction intersecting the yoke portion and is integrated by the temporary connection of the adjacent core pieces at end portions of the yoke portions, into the respective core pieces. The separation apparatus includes a plurality of separation members that are movable in a radial direction of the laminated core and are disposed so as to be arranged in a circumferential direction of the laminated core, and an actuator that is configured to apply an outward force in the radial direction to the laminated core through the respective separation members by moving the respective separation members outward in the radial direction.

Separation jig, separation apparatus and separation method for laminated core

There is provided an apparatus for inspecting a laminated iron core in which a plurality of iron core pieces are laminated. The apparatus includes an insertion jig being movable in a lamination direction of the laminated iron core along an inspection side surface of the laminated iron core while having a gap between the insertion jig and the inspection side surface of the laminated iron core, and a detecting sensor provided on the insertion jig and detecting a contact of the moving insertion jig with a projection which occurs on the inspection side surface of the laminated iron core.

Apparatus for inspecting laminated iron core and method for inspecting laminated iron core

There is provided an apparatus for manufacturing a thin uneven member. The apparatus includes a lower die fixed to a press bed, an upper die fixed to a ram and disposed opposed to the lower die, and a pressure-drive unit which presses the ram using a servo motor as a power source, the servo motor being fixed to a first support member. The pressure-drive unit includes a motion converting mechanism which converts a rotation of the servo motor to a linear motion of a lifting member, and a cylinder block connected and fixed to the first support member and including first and second pistons arranged in series vertically, wherein the first piston is connected to the lifting member through a second support member, and the second piston, larger in diameter than the first piston, presses the ram.

Apparatus and method for manufacturing thin uneven member

A production method for the laminated iron core includes a first process that segment iron core pieces which respectively have circular arc angles obtained by dividing 360&#xb0; as an angle of circumference into m are separated from a belt shaped iron core material and mounted on a mount base, the segment iron core pieces are carried to a laminating position of a rotary laminating mechanism by a pusher and the rotary laminating mechanism including the carried segment iron core piece therein is rotated by 360&#xb0;/m and a second process that the first process is repeated to form an annularly connected iron core piece in which the segment iron core pieces are annularly arranged. The second process is repeated to form a caulked and laminated iron core having a prescribed thickness. During the second process, the segment iron core pieces are caulked and laminated in the rotary laminating mechanism.

Production method for laminated iron core

A method of manufacturing a laminated core, having a laminated core bodyformed by laminating plural core sheetsand having magnet insertion holeswith openingsopening to a inner spaceor an external side, inserting and resin-sealing permanent magnetsin the magnet insertion holes, with the openingsblocked by a blocking member, the method including: temporarily connecting blocking member piecesto be the blocking memberin each of the core sheetsand removing the blocking memberwith the laminated core bodyresin-sealed. By this, without a special blocking member, the permanent magnetsare resin-sealed while the magnet insertion holes, parts of which have the openings, are blocked.

Method of manufacturing laminated core having permanent magnets sealed with resin

A punch apparatus for punching and laminating simultaneously a plural number of thin sheets is disclosed. This punch apparatus includes a punch provided on an upper portion of the punch apparatus, a die provided on a lower portion of the punch apparatus and used for punching a material to be processed, a stripper for guiding the punch during punching operation, a device for laminating punched materials using the punch as a laminating axis, a device for adjusting a relative position between the punch and the stripper when the upper and the lower portions of the punch apparatus are separated, and a device for adjusting a clearance between the die and the stripper during punching operation. The punch apparatus can open precisely almost straight very fine through-holes of a diameter of 100 &#x3bc;m or less even in a sheet of thin, soft and deformable material.

Punch die for punching and laminating simultaneously

A stamping punch of a punching apparatus for stamping comprises a grip member which is provided with crosspieces formed between long grooves on side walls of a rectangular parallelepiped, and a plurality of punch members which are formed integrally with the grip member. The respective punch members are arranged in parallel to one another. A plurality of long holes are defined on a punch holder. A large amount of adhesive is contained in the gap between joining surfaces when the grip members of the stamping punches are inserted and secured into the respective long holes. Accordingly, the positional accuracy of the punch member is improved, the accuracy of the hole defined through a workpiece is improved, and it is possible to eliminate any fear of occurrence of defect in shape. Further, the rigidity of the punch member can be improved, the stripper is prevented from application of unbalanced load, and the punch is easily exchangeable.

Punching apparatus for stamping and method for producing the same

A sheet machining apparatus has a die for positioning a sheet to be machined. The die is mounted on a lower die base for movement and has a machining pattern for the sheet, a plurality of punches are mounted on an upper punch base for machining the sheet in coaction with the die in a predetermined number of machining cycles according to the individual machining pattern, and a feed mechanism horizontally moves the die to align a machining position on the sheet with the punches each time the sheet is machined by the die and the punches.

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Kitakyushu, Japan

Satoshi Matsubayashi