公开(公告)号：WO2016152162A1

公开(公告)日：2016-09-29

申请号：PCT/JP2016/001694

申请日：2016-03-23

Applicant: NETUREN CO., LTD.

Inventor： KUWAHARA, Yoshitaka ,  MORI, Kazuki ,  OKAMOTO, Mitsuhiro ,  IKUTA, Fumiaki

IPC: B21J5/08 ,  B21K1/12

CPC classification number: B21J5/08 ,  B21K1/12

Abstract: A sleeve is provided for a partial diameter enlargement in which a portion of a workpiece between a pair of holder units supporting both end portions of the workpiece is enlarged by applying pressure to the workpiece in a direction of an axis of the workpiece while at the same time applying energy to the workpiece in a direction intersecting the axis to form a diameter-enlarged portion between the holder units. The sleeve is provided in at least one of the holder units to support at least one of the end portions of the workpiece in a fitted manner. The sleeve has at least two portions, one of which contacting the diameter-enlarged portion when the partial diameter enlargement is completed, so that only the portion that contacts the diameter-enlarged portion can be replaced.

Abstract translation: 提供了用于部分直径扩大的套筒，其中通过在工件的轴线方向上向工件施加压力而在支撑工件的两个端部的一对保持器单元之间的工件的一部分被放大 在与轴线交叉的方向上向工件施加能量以在保持器单元之间形成直径扩大部分。 套筒设置在至少一个保持器单元中，以装配的方式支撑工件的至少一个端部。 套筒具有至少两个部分，当部分直径扩大完成时，其中一个部分与直径扩大部分接触，从而只能更换与直径扩大部分接触的部分。

公开(公告)号：WO2016079997A1

公开(公告)日：2016-05-26

申请号：PCT/JP2015/005810

申请日：2015-11-20

Applicant: NETUREN CO., LTD.

Inventor： OKAMOTO, Mitsuhiro ,  IKUTA, Fumiaki ,  KUWAHARA, Yoshitaka ,  MORI, Kazuki

IPC: B21J5/08 ,  B21K1/12

CPC classification number: B21J5/08 ,  B21K1/12

Abstract: A shaft diameter enlarging apparatus and a shaft diameter enlarging method are provided. The shaft diameter enlarging apparatus includes a presser to apply pressure to both ends of a shaft in an axial direction, a load generator to apply alternating load in a direction intersecting the axial direction to an intermediate portion of the shaft, a detector to detect an outer diameter of the intermediate portion being enlarged, along with a compression in the axial direction, through the application of the pressure and the alternating load, and a controller to control the presser and the load generator. The detector includes a contact element arranged to contact an outer peripheral surface of the intermediate portion to detect the outer diameter based on a displacement of the contact element. The controller adjusts the pressure applied by the presser and stops the compression of the intermediate portion, based on the detected outer diameter.

Abstract translation: 提供了轴径扩大装置和轴径扩大方法。 轴径扩大装置包括：向轴向两轴施加压力的压力机;负载发生器，用于沿与轴向交叉的方向施加交变负荷至轴的中间部;检测器，用于检测外部 通过施加压力和交变负载，中间部分的直径以及沿轴向的压缩被扩大，以及控制器来控制压脚和负载发生器。 检测器包括接触元件，其被设置为接触中间部分的外周表面，以基于接触元件的位移来检测外径。 控制器基于检测到的外径调节由压脚施加的压力并停止中间部分的压缩。

公开(公告)号：WO2015141865A1

公开(公告)日：2015-09-24

申请号：PCT/JP2015/058650

申请日：2015-03-17

Applicant: NETUREN CO., LTD.

Inventor： KUWAHARA, Yoshitaka ,  MORI, Kazuki ,  OKAMOTO, Mitsuhiro ,  IKEDA, Takashi ,  IKUTA, Fumiaki

IPC: B21J5/08 ,  B21K1/12

CPC classification number: B21J5/08 ,  B21J13/00 ,  B21K1/12

Abstract: A shaft holding sleeve is inserted in a fitting hole of a compressing machine of a shaft diameter enlarging apparatus that applies an axial compression stress to a shaft stock to hold an end portion of the shaft stock during a shaft diameter enlarging process for radially enlarging a portion of the shaft stock. The shaft holding sleeve includes a front end surface to be inserted in the fitting hole, an exposed portion to be exposed to an outside of the fitting hole, and at least one air communication passage extending from the front end surface to a surface of the exposed portion. A jig may be attached to the shaft diameter enlarging apparatus to facilitate the insertion of the shaft holding sleeve into the fitting hole.

Abstract translation: 轴保持套筒插入轴直径扩大装置的压缩机的装配孔中，该轴直径扩大装置在轴直径扩大过程中向轴坯施加轴向压缩应力以保持轴坯的端部，以径向扩大部分 的轴库存。 轴保持套筒包括插入到装配孔中的前端面，暴露于装配孔外部的暴露部分，以及至少一个空气连通通道，从前端表面延伸到露出的外表面 一部分。 夹具可以附接到轴直径扩大装置，以便于将轴保持套筒插入到装配孔中。