公开(公告)号：EP3258232A1

公开(公告)日：2017-12-20

申请号：EP16749290.9

申请日：2016-02-10

Applicant: NHK Spring Co., Ltd.

Inventor： NAKAMURA, Takahiro ,  FURUKAWA, Kazuo ,  MORIYAMA, Senri ,  SATO, Ryuichi ,  NISHIZAWA, Shinichi

IPC: G01L5/16 ,  G01L5/00 ,  B60G15/06

CPC classification number: G01L5/00 ,  F16F1/04 ,  F16F2230/0017 ,  G01L5/16

Abstract: A coil spring modeling apparatus (20) includes an actuator unit (30) formed of a Stewart-platform-type parallel mechanism, a first inner load cell (41) accommodated in a first attachment member (21), a second inner load cell (42) accommodated in a second attachment member (22), and a rotation support mechanism (50). The actuator unit (30) is rotatably supported by the rotation support mechanism (50) about an axis (L 1 ). The first inner load cell (41) is arranged on the first seat adapter (27) coaxially with the rotation support mechanism (50), and detects an axial force acting on the lower spring seat (10A) and a moment. The second inner load cell (42) is arranged under the second seat adapter (28) coaxially with the rotation support mechanism (50), and detects an axial force acting on the upper spring seat (15A) and a moment.

Abstract translation: 螺旋弹簧造型装置（20）包括由Stewart平台型并联机构形成的致动器单元（30），容纳在第一附接构件（21）中的第一内部负载单元（41），第二内部负载单元 容纳在第二安装构件（22）中的旋转支撑机构（50），以及旋转支撑机构（50）。 致动器单元（30）围绕轴线（L1）由旋转支撑机构（50）可旋转地支撑。 第一内部测力传感器41与旋转支撑机构50同轴地配置在第一座椅适配器27上，检测作用于下部弹簧座10A的轴向力和力矩。 第二内部载荷传感器42与旋转支撑机构50同轴地配置在第二座椅适配器28的下方，检测作用于上部弹簧座15A的轴力和力矩。

公开(公告)号：EP3184242A1

公开(公告)日：2017-06-28

申请号：EP15834152.9

申请日：2015-06-09

Applicant: NHK Spring Co., Ltd.

Inventor： MORIYAMA, Senri ,  AKIYAMA, Satoshi ,  KOMAZAKI, Masaya ,  NAGAYASU, Go ,  OKADA, Hideki ,  YOKOTA, Daisuke

IPC: B24C1/10 ,  B24C3/24 ,  F16F1/02

CPC classification number: B24C1/10 ,  B24C3/24 ,  F16F1/02 ,  F16F1/04

Abstract: A vertical motion impeller-type shot peening device (50) performs a second shot peening to a coil spring (10) including first shot peening indentations (20). The vertical motion impeller-type shot peening device (50) includes a workpiece holding mechanism (52) including a lower end turn support (84, 85) and an upper end turn support (95, 96), a stress applying mechanism (90) which compresses the coil spring (10), a rotation mechanism (100) which allows the coil spring (10) to rotate around the vertical axis, and a projection mechanism (57) which includes a pair of vertically movable impeller units (55, 56). A first rough surface (21) including first shot peening indentations (20) is formed on a part of end turn portions (10a, 10b) of the coil spring (10). A second rough surface (31) including second shot peening indentations (30) is formed on the entire surface of wire (11) except for the first rough surface (21).

Abstract translation: 垂直运动叶轮式喷丸装置（50）对包括第一喷丸硬化压痕（20）的螺旋弹簧（10）执行第二喷丸。 上下运动叶轮式喷丸装置（50）包括：包括下端匝支承件（84,85）和上端匝支承件（95,96）的工件保持机构（52）;应力施加机构（90） 压缩螺旋弹簧10的旋转机构100，使螺旋弹簧10绕垂直轴旋转的旋转机构100和包括一对可垂直移动的叶轮单元55,56的投射机构57， ）。 包括第一喷丸压痕（20）的第一粗糙表面（21）形成在螺旋弹簧（10）的一部分端部转弯部分（10a，10b）上。 包括第二喷丸硬化凹痕（30）的第二粗糙表面（31）形成在除第一粗糙表面（21）之外的金属丝（11）的整个表面上。

公开(公告)号：EP4257841A1

公开(公告)日：2023-10-11

申请号：EP21903064.0

申请日：2021-11-02

Applicant: NHK Spring Co., Ltd.

Inventor： NISHIZAWA, Shinichi ,  MORIYAMA, Senri ,  DAI, Fang ,  FURUSE, Takeshi

IPC: F16F1/06

Abstract: According to an embodiment, a coil spring includes a wire rod (2) having an end and the other end. The wire rod (2) of the coil spring includes, with regard to a section of the wire rod (2), a round section potion (30) of an effective spring part (13), a square section portion (31) in which the section is substantially square, and a taper portion (32). The square section portion (31) includes an end turn part (11)(12). A length of each side of the section of the square section portion (31) is less than or equal to a square root of 1/2 multiplied by a diameter of the wire rod (2) of the round section portion (30). In the taper portion (32), from the round section portion (30) to the square section portion (31), the section changes from a round shape to substantially a square shape, and a sectional area is decreased.

公开(公告)号：EP3421177B1

公开(公告)日：2020-10-21

申请号：EP17756615.5

申请日：2017-02-23

Applicant: NHK Spring Co., Ltd.

Inventor： OKADA, Hideki ,  YOKOTA, Daisuke ,  MORIYAMA, Senri ,  AKIYAMA, Satoshi ,  KOMAZAKI, Masaya ,  NAGAYASU, Go

IPC: B24C1/10 ,  B24C3/24 ,  B24C9/00

公开(公告)号：EP3258234A1

公开(公告)日：2017-12-20

申请号：EP16749292.5

申请日：2016-02-10

Applicant: NHK Spring Co., Ltd.

Inventor： NAKAMURA, Takahiro ,  FURUKAWA, Kazuo ,  MORIYAMA, Senri ,  SATO, Ryuichi ,  NISHIZAWA, Shinichi

IPC: G01L5/16 ,  G01L5/00 ,  B60G15/06

CPC classification number: F16F1/04 ,  F16F2230/0017

Abstract: A coil spring modeling apparatus (20) includes a first attachment member (21) disposed on a lower spring seat (10A), a second attachment member (22) disposed on an upper spring seat (15A), an actuator unit (30) formed of a Stewart-platform-type parallel mechanism, a hydraulic pressure supply device (37), a torsion detection mechanism (40A), and a controller (70). The torsion detection mechanism (40A) is constituted of displacement gauges (40 1 -40 6 ) such as a linear variable differential transformer (LVDT). The displacement gauges (40 1 -40 6 ) are provided on hydraulic cylinders (31 1 -31 6 ), and detect amounts of displacement relative to the reference lengths of the hydraulic cylinders (31 1 -31 6 ), respectively. The controller (70) calculates a relative torsional angle between the first attachment member (21) and the second attachment member (22) based on the detected amounts of displacement.

Abstract translation: 本发明提供一种螺旋弹簧造型装置，该螺旋弹簧造型装置包括设置在下弹簧座上的第一安装构件，设置在上弹簧座上的第二安装构件， Stewart平台型并联机构，液压供给装置（37），扭转检测机构（40A），控制器（70）等构成。 扭转检测机构40A由线性可变差动变压器（LVDT）等位移计（401-406）构成。 位移计（401-406）设置在液压缸（311-316）上，并分别检测相对于液压缸（311-316）的参考长度的位移量。 控制器（70）基于检测到的位移量来计算第一附接构件（21）和第二附接构件（22）之间的相对扭转角。

公开(公告)号：EP3421177A1

公开(公告)日：2019-01-02

申请号：EP17756615.5

申请日：2017-02-23

Applicant: NHK Spring Co., Ltd.

Inventor： OKADA, Hideki ,  YOKOTA, Daisuke ,  MORIYAMA, Senri ,  AKIYAMA, Satoshi ,  KOMAZAKI, Masaya ,  NAGAYASU, Go

IPC: B24C1/10 ,  B24C3/24 ,  B24C9/00

Abstract: A coil spring processing device includes an end positioning device (30), shot peening device (50), and controller (98). The end positioning device (30) positions ends (1c, 1d) of a coil spring (1). The shot peening device (50) includes a turntable mechanism (52), pressure mechanism (93), rotation mechanism (100) which rotates the coil spring (1), and projection mechanism (57) which projects shots. Holding mechanisms (81, 82) each include a lower shifting prevention jig (85) and an upper shifting prevention jig (91). The controller (98) stops a first holding mechanism (81) and a second holding mechanism (82) in rotation stop positions corresponding to end turn portions (1a, 1b) of the coil spring (1).

公开(公告)号：EP3421176A1

公开(公告)日：2019-01-02

申请号：EP17756611.4

申请日：2017-02-23

Applicant: NHK Spring Co., Ltd.

Inventor： OKADA, Hideki ,  YOKOTA, Daisuke ,  MORIYAMA, Senri ,  AKIYAMA, Satoshi ,  KOMAZAKI, Masaya ,  NAGAYASU, Go

IPC: B24C1/10 ,  B24C3/24 ,  B24C3/32 ,  B24C9/00

Abstract: A shot peening device (50) includes a turntable (79) which rotates about a revolution axis (X1), holding mechanism (81, 82) which moves with the turntable (79), pressure mechanism (93) which compresses a coil spring (1), rotation mechanism (100) which rotates the coil spring (1), projection mechanism (57) which projects shots to the compressed coil spring (1), load cell (96, 97) which detects a load applied to the coil spring (1), and controller (98). A signal output from the load cell (96, 97) is input to the controller (98), and the controller (98) detects a chronological change of the load applied to the coil spring (1) during the shot peening.

公开(公告)号：EP3258233A1

公开(公告)日：2017-12-20

申请号：EP16749291.7

申请日：2016-02-10

Applicant: NHK Spring Co., Ltd.

Inventor： NAKAMURA, Takahiro ,  FURUKAWA, Kazuo ,  MORIYAMA, Senri ,  SATO, Ryuichi ,  NISHIZAWA, Shinichi

IPC: G01L5/16 ,  G01L5/00 ,  B60G15/06

CPC classification number: G05B17/02 ,  F16F1/04 ,  F16F2230/0017

Abstract: A coil spring modeling apparatus (20) includes a first attachment member (21) disposed on a lower spring seat (10A), a second attachment member (22) disposed on an upper spring seat (15A), an actuator unit (30) formed of a Stewart-platform-type parallel mechanism, a spring height detection mechanism (40A), a hydraulic pressure supply device (37), and a controller (70). The spring height detection mechanism (40A) is constituted of displacement gauges (40 1 -40 6 ) such as a linear variable differential transformer (LVDT). These displacement gauges (40 1 -40 6 ) are provided on hydraulic cylinders (31 1 -31 6 ), and detect amounts of displacement relative to the reference lengths of the hydraulic cylinders (31 1 -31 6 ), respectively. The hydraulic pressure supply device (37) is controlled by the controller (70) and supplies fluid pressure according to the amounts of displacement detected by the displacement gauges (40 1 -40 6 ) to the respective hydraulic cylinders (31 1 -31 6 ).

Abstract translation: 本发明提供一种螺旋弹簧造型装置，该螺旋弹簧造型装置包括设置在下弹簧座上的第一安装构件，设置在上弹簧座上的第二安装构件， Stewart平台型并联机构，弹簧高度检测机构（40A），液压供给装置（37）以及控制器（70）。 弹簧高度检测机构（40A）由线性可变差动变压器（LVDT）等位移计（401-406）构成。 这些位移计（401-406）设置在液压缸（311-316）上，并分别检测相对于液压缸（311-316）的参考长度的位移量。 液压供应装置（37）由控制器（70）控制，并根据由位移仪（401-406）检测到的位移量向各个液压缸（311-316）供应流体压力。