WO2014156571A1 - ポリゴン加工装置およびポリゴン加工方法 - Google Patents
ポリゴン加工装置およびポリゴン加工方法 Download PDFInfo
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- WO2014156571A1 WO2014156571A1 PCT/JP2014/056040 JP2014056040W WO2014156571A1 WO 2014156571 A1 WO2014156571 A1 WO 2014156571A1 JP 2014056040 W JP2014056040 W JP 2014056040W WO 2014156571 A1 WO2014156571 A1 WO 2014156571A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q27/00—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass
- B23Q27/006—Geometrical mechanisms for the production of work of particular shapes, not fully provided for in another subclass by rolling without slippage two bodies of particular shape relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2265/00—Details of general geometric configurations
- B23B2265/16—Elliptical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2265/00—Details of general geometric configurations
- B23B2265/32—Polygonal
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45236—Facing, polygon working, polyhedron machining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/10—Process of turning
Definitions
- the present invention relates to a polygon processing apparatus and a polygon processing method.
- Polygon processing is conventionally performed to process the outer peripheral surface of a workpiece into a polygon using a polygon cutter.
- Polygon machining is performed by rotating the workpiece gripped by the spindle around the axis and rotating the polygon cutter mounted on the tool spindle in synchronization with the workpiece at a predetermined rotation ratio.
- the first polygon processing is performed on the workpiece, and then the first polygon processing is performed on the workpiece after the first polygon processing.
- Deburring to remove burrs generated on the outer peripheral surface of the workpiece is performed, and then the polygon cutter is rotated so that the origin position set on the rotary tool base and the polygon cutter are relatively in a predetermined arrangement relationship.
- the second polygon processing such as removing burrs generated on the inner peripheral surface of the work in the first polygon processing for the work after the deburring processing is performed.
- An object of the present invention is to provide a polygon processing apparatus and a polygon processing method for processing a plurality of polygons using a polygon cutter mounted on a tool spindle that rotates synchronously with a spindle while the workpiece is gripped by the rotating spindle. There is.
- a spindle that grips a workpiece, a tool spindle that is equipped with a polygon cutter, and a control unit that controls rotation of the spindle and the tool spindle are provided. After the first polygon machining is performed with the polygon cutter, the machining with a tool other than the polygon cutter is performed, and after the machining, the second polygon machining is performed with the polygon cutter. The spindle and the tool spindle are synchronized.
- the polygon processing apparatus that processes the workpiece while maintaining the phase relationship between the spindle and the tool spindle is controlled by the control means to maximize the synchronization ratio necessary for the first or second polygon processing and the tool spindle.
- the ratio of synchronization between the second synchronization ratio and the second synchronization ratio such that the main shaft can be rotated at the number of revolutions necessary for machining after the first polygon machining by rotating at a number of revolutions not exceeding the number of revolutions.
- a synchronization ratio changing means for changing After the first polygon machining, the spindle and the tool spindle are rotated synchronously at a second ratio to perform machining, and after the machining after the first polygon machining, The second polygon processing is performed by changing the ratio.
- the synchronization ratio changing means is configured to change the synchronization ratio at the timing when the rotational position of the spindle is located at a predetermined fixed point.
- the second ratio is set so that the rotational speed of the spindle is higher than the rotational speed of the tool spindle.
- the first polygon is maintained by maintaining the phase relationship between the spindle and the tool spindle by the polygon cutter attached to the tool spindle that rotates synchronously with the spindle with respect to the workpiece gripped by the rotating spindle.
- the polygon machining method in which machining with a tool other than the polygon cutter is performed and the second polygon machining is performed after the machining while maintaining the phase relationship between the spindle and the tool spindle is performed by rotating the spindle
- the tool spindle is rotated at a rotation speed that does not exceed the maximum rotation speed, so that the spindle can be rotated at a rotation speed necessary for machining after the first polygon machining.
- the present invention it is possible to realize a polygon processing apparatus and a polygon processing method for processing a workpiece gripped by a rotating spindle using a polygon cutter attached to a tool spindle that rotates synchronously with the spindle.
- the phases of the workpiece and the polygon cutter can be easily matched at both time points, so that a predetermined phase is applied to the outer peripheral surface of the workpiece.
- a plurality of polygon shapes can be accurately formed.
- FIG. 1 is a cross-sectional view illustrating an example of the configuration of a turret tool post mounted on a machine tool to which a polygon processing apparatus according to the present invention can be applied.
- FIG. 2 is a diagram showing a state in which a polygon cutter used in a polygon processing apparatus according to an embodiment of the present invention is mounted on the turret tool post shown in FIG. 3, wherein (a) is a partially cutaway side view; (B) is a partially cutaway front view.
- the turret tool post 10 is mounted on an automatic lathe such as an NC lathe that is a machine tool.
- the turret tool post 10 includes a tool post main body 12 and a turret 14 supported by the tool post main body 12 so as to be turnable.
- the turret 14 includes a hollow head 20 having a cylindrical or prismatic outer shape, and a hollow cylindrical shaft portion 22 extending concentrically from one end in the axial direction of the head 20 in the axial direction.
- a plurality of tool mounting portions 24 for mounting tools are provided for each predetermined index angle.
- a processing tool such as a turning tool 26 such as a cutting tool or a rotary tool 28 such as a drill or a milling cutter can be selectively mounted on each tool mounting portion 24.
- the shaft portion 22 is supported by the tool post body 12 so as to be rotatable and movable in the axial direction.
- the turret 14 is releasably engaged with the tool post body 12 via the engaging portion 38, and is rotated by causing the servo motor 32 to disengage the engaging portion 38 and rotationally driving the shaft portion 22. Is done.
- the turret 14 is fixed at the index position on the tool post body 12, and a predetermined processing tool can be selected.
- a drive shaft 42 that is rotationally driven by a servo motor 46 is supported in the shaft portion 22.
- the driven gear 50 connected to the tool main shaft meshes with the drive gear 44 attached to the drive shaft 42.
- the rotary tool 28 is rotationally driven by a servo motor 46.
- a polygon cutter 54 can be mounted on the predetermined tool mounting portion 24 via a holder 60 having a tool spindle.
- a polygon cutter 54 is mounted on the tool spindle of the holder 60, and a driven gear 62 connected to the polygon cutter 54 (tool spindle) via power transmission in the holder 60 meshes with the drive gear 44, thereby causing the polygon cutter 54. Is rotated by a servo motor 46.
- the spindle By rotating the turret 14, selecting the polygon cutter 54, rotating the spindle driven by the spindle motor and the polygon cutter 54 in synchronization with each other, and maintaining the phase relationship between the spindle and the polygon cutter 54, the spindle It is possible to perform polygon processing on the workpiece W gripped on the workpiece to form an ellipse, a polygon or the like on the outer peripheral surface of the workpiece W. In the polygon machining, the tool spindle and the spindle are rotationally driven so that the rotational speed of the workpiece W and the rotational speed of the polygon cutter 54 are in a predetermined ratio.
- the rectangle cutter is processed by rotating the polygon cutter having two blades that are half the number of corners twice. can do.
- 3 polygon cutters in which three blades, which are half the number of corners, are arranged so as to form, for example, a triangular shape during one rotation of the work are provided. What is necessary is just to rotate it.
- FIG. 3 is a block diagram showing control means capable of executing the polygon processing method according to the embodiment of the present invention.
- the tool spindle and the spindle are driven and controlled by the control means shown in FIG.
- this control means is constituted by an NC device 70 provided in a numerical control (NC) lathe.
- NC numerical control
- a control device other than the NC device can be used.
- the NC device 70 includes an input unit 72, a display unit 74, a processing unit (CPU) 76, a storage unit (ROM 78 and RAM 80), a drive control unit 82, and the like.
- CPU processing unit
- ROM 78 and RAM 80 storage unit
- drive control unit 82 drive control unit
- the CPU 76 In the control device (NC device 70), the CPU 76 outputs an operation command to the drive control unit 82 based on various data stored in the ROM 78 or RAM 80, a machining program, etc., and the drive control unit 82 operates from the CPU 76. Based on the command, the indexing drive source (servo motor) 32 and the rotation drive source (servo motor) 46 of the turret tool post 10 and the drive mechanism 88 such as a spindle motor that rotationally drives the spindle are controlled respectively. The turning and rotation of the rotary tool 28 (tool spindle) and the spindle are operated.
- FIG. 4 is a flowchart showing an operation flow of the polygon processing method according to the embodiment of the present invention.
- the synchronization ratio between the spindle and the tool spindle that is, the ratio of the rotation speed (number of rotations) in a state in which synchronization is maintained
- ratio is used as “first ratio” or “second ratio”. It explains using.
- step S101 the spindle and the tool spindle are rotated synchronously so that the rotation speed of the spindle holding the workpiece W and the rotation speed of the tool spindle on which the polygon cutter 54 is mounted have a first ratio.
- the first ratio is set to a required value in order to process a polygon into a required processing shape (for example, a polygon).
- step S102 the spindle and the tool spindle are set such that the rotation speed of the spindle and the rotation speed of the tool spindle have a second ratio different from the first ratio at the time of the first polygon machining. Are rotated synchronously to cut the workpiece after the first polygon processing.
- the polygon cutter mounted on the tool spindle is retracted in advance.
- the “second ratio” used in the cutting process will be described as follows.
- the spindle and the tool spindle do not need to be synchronized, and the spindle rotation speed can be set higher than that for polygon machining in order to shorten the work machining time.
- the spindle rotation speed can be set higher than that for polygon machining in order to shorten the work machining time.
- the material diameter is small, such as a thin workpiece, it is more efficient to increase the rotation speed of the workpiece during cutting.
- the maximum number of rotations of the tool spindle on which the polygon cutter is mounted is lower than the maximum number of rotations of the spindle that grips the workpiece.
- the synchronization ratio between the spindle and the tool spindle exceeds the maximum number of revolutions allowed for the synchronized tool spindle. It is set to fit within the range.
- the polygon cutter when forming a quadrangle on the outer peripheral surface of the workpiece, at the time of the first polygon processing in step S101, the polygon cutter is rotated twice while the workpiece is rotated once, but the cutting in step S102 is performed. At the time of machining, for example, the synchronization ratio is changed between polygon machining and cutting such that the polygon cutter is synchronized to rotate once while the workpiece is rotated five times.
- step S103 the spindle and the tool spindle are rotated synchronously so that the rotation speed of the spindle and the rotation speed of the tool spindle have a ratio necessary for the second polygon machining, and the polygon cutter Second polygon processing is performed.
- the ratio for processing the second polygon can be set to the same ratio as the first ratio in step S101.
- the polygon processing apparatus that executes each of the above-described processes includes a spindle that grips a workpiece, a tool spindle that is equipped with a polygon cutter, and a control unit that controls the rotation of the spindle and the tool spindle.
- the control means performs control for synchronously rotating the spindle and the tool spindle so that the rotation speed of the spindle and the rotation speed of the tool spindle have the first ratio necessary for performing the first polygon processing.
- the first polygon machining is performed on the workpiece by the polygon cutter (step S101). After the first polygon machining, the rotation speed of the spindle and the rotation speed of the tool spindle have the second ratio.
- a process of performing synchronous processing for rotating the spindle and the tool spindle to perform cutting on the workpiece after the first polygon processing (step S102), and after the cutting, the rotation speed of the spindle and the rotation speed of the tool spindle Is controlled to rotate the spindle and tool spindle synchronously so as to have the ratio necessary for performing the second polygon machining, and the second polygon is added to the workpiece after machining by a polygon cutter.
- the processing performed controls the rotation of the spindle and the tool spindle.
- the rotation speed of the spindle having the second ratio with respect to the rotation speed of the tool spindle is such that the rotation speed of the spindle necessary for the cutting process is the rotation speed of the tool spindle. Is set so as to be within a range that does not exceed the maximum rotation speed allowed.
- synchronous rotation is performed at the first ratio necessary for the first polygon processing, and in the cutting processing with a tool other than the polygon cutter in step S102, the tool spindle is used. Even if the rotation speed is lower than the maximum rotation speed, synchronous rotation is performed at a second ratio such that the spindle can rotate at the rotation speed necessary for cutting, and in the second polygon processing by the polygon cutter in step S103, The synchronous rotation is performed at a ratio necessary for the second polygon processing. It can also be set to perform synchronous rotation at the first ratio during the second polygon processing.
- the processing of each step is performed without stopping the synchronous rotation of the spindle and tool spindle, the workpiece and the polygon cutter are always rotating synchronously, and when performing two types of polygon processing on the outer peripheral surface of the workpiece, And the polygon cutter can be easily matched in phase, so that a plurality of polygon shapes can be formed accurately and in a short time on the outer peripheral surface of the workpiece with a predetermined phase relationship.
- the phase ratio between the spindle and the tool spindle at a predetermined fixed point is set by changing the synchronization ratio so that the spindle is changed at a predetermined fixed point, for example, the spindle origin where the rotation angle of the spindle is 0 degree. Since it is always constant, the phase alignment during the first polygon processing and the second polygon processing can be easily performed at the timing when the main axis is positioned at the predetermined fixed point.
- the synchronization ratio can be changed continuously at the predetermined fixed point or by temporarily stopping the spindle.
- FIG. 5 shows two types of polygon machining using a polygon cutter 54 having three blades 66 connected to a tool spindle for a workpiece W gripped by the spindle by the polygon machining method according to the embodiment of the present invention. It is a figure explaining an example which gives. A case where two hexagons having different sizes with respect to the outer peripheral surface of the workpiece 2 are formed in the same phase as shown in FIG.
- step S201 the outer diameter cutting tool 57 is indexed, the workpiece W gripped by the main shaft is guided by the guide bush 55, and outer diameter processing (cutting processing) is performed on the workpiece W.
- step S202 the polygon cutter 54 is determined, and the first polygon processing for forming a hexagon is performed on the outer diameter processed portion of the workpiece W as shown in step S203.
- step S203 the spindle and the tool spindle are rotated synchronously at the first ratio required for the first polygon machining.
- step S204 the outer diameter tool 57 is indexed, and outer diameter processing (cutting) is performed on the workpiece W.
- the spindle In the cutting process using the outer diameter cutting tool 57 that is a tool other than the polygon cutter in step S204, the spindle can be rotated at the rotation speed necessary for the cutting process even if the tool spindle is rotated at a rotation speed lower than the maximum rotation speed. Synchronous rotation is performed at the second ratio. Then, as shown in step S205, the polygon cutter 54 is determined, and second polygon processing for forming a hexagon on the workpiece W is performed. In the second polygon machining in step S205, the spindle and the tool spindle are rotated synchronously at a ratio required for the second polygon machining.
- Similar hexagons are formed with the same phase in the first polygon processing and the second polygon processing, so that the second polygon processing is the same as in the first polygon processing.
- the synchronous rotation is performed at the first ratio. Since the phase of the polygon cutter 54 and the phase of the workpiece W coincide with each other when the first polygon processing is performed and when the second polygon processing is performed, the first polygon processing is performed at a predetermined phase. Second polygon processing can be performed.
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- Engineering & Computer Science (AREA)
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Abstract
Description
12 刃物台本体
14 タレット
20 頭部
22 軸部
24 工具装着部
26 旋削工具
28 工具主軸28
32 サーボモータ
38 係合
42 駆動軸
44 駆動歯車
46 サーボモータ
48 ホルダ
50 被動歯車
54 ポリゴンカッタ
55 ガイドブッシュ
57 外径バイト
60 ホルダ
62 被動歯車
66 刃物
70 NC装置
72 入力部
74 表示部
76 CPU
78 ROM
80 RAM
82 駆動制御部
84 可動構造体
86 選択動作記憶領域
W ワーク
Claims (4)
- ワークを把持する主軸と、ポリゴンカッタが装着された工具主軸と、前記主軸および前記工具主軸を回転制御する制御手段とを備え、前記ワークに対して、前記ポリゴンカッタによって第1のポリゴン加工を行った後、前記ポリゴンカッタ以外の工具による加工を行い、当該加工後に、前記ポリゴンカッタによって第2のポリゴン加工を行うように構成され、前記主軸と前記工具主軸とを同期して回転させ、前記主軸と前記工具主軸との位相関係を維持して前記ワークの加工を行うポリゴン加工装置であって、
前記制御手段は、前記第1又は第2のポリゴン加工に必要な同期の比率と、前記工具主軸を最大回転数を越えない回転数で回転させて、前記主軸が前記第1のポリゴン加工後の前記加工に必要な回転数で回転できるような第2の同期の比率との間で、 前記同期の比率を変更する同期比変更手段を備え、
前記第1のポリゴン加工後、第2の比率で前記主軸と前記工具主軸とを同期して回転させて加工を行い、前記第1のポリゴン加工後の前記加工後、同期の比率を変更して第2のポリゴン加工を行うように構成されたことを特徴とするポリゴン加工装置。 - 前記同期比変更手段が、前記主軸の回転位置が所定の定点に位置するタイミングで同期の比率を変更するように構成されたことを特徴とする請求項1に記載のポリゴン加工装置。
- 前記第2の比率が、前記主軸の回転数が、前記工具主軸の回転数より高くなるように設定される請求項1または2に記載のポリゴン加工装置。
- 回転する主軸により把持されたワークに対して、前記主軸に対して同期回転する工具主軸に装着されたポリゴンカッタによって前記主軸と前記工具主軸との位相関係を維持して第1のポリゴン加工を行った後、前記ポリゴンカッタ以外の工具による加工を行い、当該加工後に、前記ポリゴンカッタによって前記主軸と前記工具主軸との位相関係を維持して第2のポリゴン加工を行うポリゴン加工方法であって、
前記主軸の回転数と前記工具主軸の回転数とが第1のポリゴン加工に必要な比率となるよう前記主軸と前記工具主軸とを同期回転させて第1のポリゴン加工を行う第1のポリゴン加工ステップと、
前記第1のポリゴン加工ステップの後、前記工具主軸を最大回転数を越えない回転数で回転させて、前記主軸が前記第1のポリゴン加工後の前記加工に必要な回転数で回転できるような第2の同期の比率に変更して前記主軸と前記工具主軸とを同期回転させ、前記第1のポリゴン加工後の前記ワークに対して加工を行う加工ステップと、
前記加工ステップの後、前記主軸の回転数と前記工具主軸の回転数とが前記第2のポリゴン加工に必要な比率となるよう前記主軸と前記工具主軸とを同期回転させて第2のポリゴン加工ステップと、
を備えることを特徴とするポリゴン加工方法。
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EP14775453.5A EP2979785B1 (en) | 2013-03-28 | 2014-03-07 | Polygon machining device and polygon machining method |
ES14775453T ES2805470T3 (es) | 2013-03-28 | 2014-03-07 | Dispositivo de mecanizado poligonal y método de mecanizado poligonal |
US14/779,325 US9676036B2 (en) | 2013-03-28 | 2014-03-07 | Polygon machining device and polygon machining method |
KR1020157026362A KR102012912B1 (ko) | 2013-03-28 | 2014-03-07 | 다각형 가공 장치 및 다각형 가공 방법 |
CN201480018377.8A CN105228777B (zh) | 2013-03-28 | 2014-03-07 | 多边形加工装置及多边形加工方法 |
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JP2013069445A JP6157171B2 (ja) | 2013-03-28 | 2013-03-28 | ポリゴン加工装置およびポリゴン加工方法 |
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KR102661109B1 (ko) * | 2017-01-17 | 2024-04-29 | 주식회사 디엔솔루션즈 | 공작기계의 제어 장치, 이를 포함하는 공작기계, 및 이를 이용한 공작기계의 제어 방법 |
CN108115231A (zh) * | 2017-12-07 | 2018-06-05 | 安徽新荣钢构有限公司 | 一种六角螺帽头自动车削装置 |
CN109304485A (zh) * | 2018-12-07 | 2019-02-05 | 四川飞亚动力科技股份有限公司 | 一种车方机 |
TWI717735B (zh) * | 2019-05-15 | 2021-02-01 | 國立臺灣師範大學 | 橢圓形車削機構滑台 |
JPWO2021177449A1 (ja) * | 2020-03-06 | 2021-09-10 | ||
DE112021001856T5 (de) | 2020-03-26 | 2023-01-12 | Fanuc Corporation | Steuerung, Steuersystem und Steuerverfahren für eine Werkzeugmaschine |
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CN112517934B (zh) * | 2020-12-29 | 2023-08-22 | 嘉兴学院 | 一种正多边形车削误差补偿的动力主轴与补偿方法 |
JP7382662B2 (ja) | 2022-03-03 | 2023-11-17 | 中海鋼業株式会社 | ポリゴン加工装置 |
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JP2014188665A (ja) | 2014-10-06 |
US9676036B2 (en) | 2017-06-13 |
TWI602631B (zh) | 2017-10-21 |
KR20150136485A (ko) | 2015-12-07 |
US20160045959A1 (en) | 2016-02-18 |
CN105228777A (zh) | 2016-01-06 |
KR102012912B1 (ko) | 2019-08-22 |
TW201501842A (zh) | 2015-01-16 |
ES2805470T3 (es) | 2021-02-12 |
JP6157171B2 (ja) | 2017-07-05 |
EP2979785A1 (en) | 2016-02-03 |
EP2979785A4 (en) | 2016-11-02 |
CN105228777B (zh) | 2017-06-06 |
EP2979785B1 (en) | 2020-05-06 |
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