WO2023276336A1 - Changeur de pas - Google Patents

Changeur de pas Download PDF

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Publication number
WO2023276336A1
WO2023276336A1 PCT/JP2022/013696 JP2022013696W WO2023276336A1 WO 2023276336 A1 WO2023276336 A1 WO 2023276336A1 JP 2022013696 W JP2022013696 W JP 2022013696W WO 2023276336 A1 WO2023276336 A1 WO 2023276336A1
Authority
WO
WIPO (PCT)
Prior art keywords
axis
link member
link
screw shaft
along
Prior art date
Application number
PCT/JP2022/013696
Other languages
English (en)
Japanese (ja)
Inventor
拓明 下吉
大介 高嶋
Original Assignee
日本トムソン株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本トムソン株式会社 filed Critical 日本トムソン株式会社
Priority to CN202280036361.4A priority Critical patent/CN117355688A/zh
Priority to KR1020237041775A priority patent/KR20240004932A/ko
Publication of WO2023276336A1 publication Critical patent/WO2023276336A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/08—Gripping heads and other end effectors having finger members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B5/00—Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereof; Compensating for the effects of tilting or acceleration, e.g. for optical apparatus

Definitions

  • the present disclosure relates to pitch changers.
  • This application claims priority based on Japanese Patent Application No. 2021-106280 filed on June 28, 2021, and incorporates all the descriptions described in the Japanese Patent Application.
  • the pantograph is expanded and contracted by linearly moving the rod by the pressure of fluid such as air.
  • the pitch changer it is difficult to stop the pitch changer at an arbitrary position because the stopping position is determined by the physical contact between the members. Therefore, the conventional pitch changer has a problem that it is difficult to stop at an arbitrary pitch with high positional accuracy.
  • Each of the plurality of first link members includes a first portion, a second portion located apart from the first portion in the second direction, and equidistant from the first portion on the opposite side of the second portion in the second direction. and a third portion spaced apart.
  • Each of the plurality of second link members includes a fourth portion, a fifth portion located away from the fourth portion in the third direction, and equidistant from the fourth portion on the opposite side of the fifth portion in the third direction. and a sixth portion spaced apart.
  • the first link member is pivotally connected to each other at the fourth portion and the first portion of the second link member that intersect the first axis at the same first point.
  • the first link member is pivotally connected to one another at fifth and third portions of the second link member which intersect the first axis at a first point adjacent to one side.
  • the first link member is pivotally connected to each other at a sixth portion and a second portion of the second link member which intersect the first axis at a first point adjacent to each other on the other side opposite to the one side. be done.
  • the telescopic member may include a plurality of tables arranged side by side along the first axis on the first link member and the second link member. According to this configuration, the pitch between the adjacent tables can be precisely controlled by rotating the first link member and the second link member by rotating the screw shaft.
  • the pitch changer 1 mainly includes a base member 10, a support member 20, an expandable member 30, and a drive section 40. As shown in FIG. Each of these components will be described in detail below. It should be noted that the following description is based on each direction of XYZ shown in FIGS. 1 to 5. FIG.
  • the support member 20 is a member for supporting the expandable member 30 with respect to the base member 10, and is arranged on the base member 10 (on the base surface 10A).
  • the support member 20 in this embodiment is a linear guide unit that slides in the Y direction.
  • the support member 20 includes a rail 21 extending in the Y direction, and a first slider 22 and a second slider 23 movable in the Y direction along the rail 21 (FIG. 5). As shown in FIG. 5, the first slider 22 and the second slider 23 are arranged side by side in the Y direction on the rail 21 .
  • the first slider 22 can move linearly from the central portion of the rail 21 in the Y direction toward the first end (lower end in FIG.
  • the second link member 62 extends in a third direction D3 that intersects the direction in which the first axis C1 extends and the second direction D2. are arranged side by side.
  • Each of the plurality of second link members 62 includes a fourth portion P4, a fifth portion P5 located apart from the fourth portion P4 in the third direction D3, and a side opposite to the fifth portion P5 in the third direction D3. includes a fourth portion P4 and a sixth portion P6 equidistantly located.
  • the fourth portion P4 corresponds to the central portion of the second link member 62 in the longitudinal direction
  • the fifth portion P5 and the sixth portion P6 each correspond to the second link member.
  • 62 corresponds to the end in the length direction.
  • the second link member 62 is arranged such that the fourth portion P4 coincides with the first point 100. As shown in FIG.
  • a plurality of washers are arranged between the first portion P1 of the first link member 61 and the fourth portion P4 of the second link member 62, and the first connecting shaft 71 is inserted into the central hole of the washer. is inserted.
  • the number of washers is not particularly limited, and may be one.
  • the first link member 61 is rotatable relative to each other at a fifth portion P5 and a third portion P3 of the second link member 62 which intersect the first axis C1 at a first point 100 adjacent to one side in the X direction. Concatenated. Specifically, the third portion P3 and the fifth portion P5 are formed with through-holes that penetrate the first link member 61 and the second link member 62 in the plate thickness direction, and the through-holes are used for the second connection.
  • a shaft 72 (second connecting pin) is inserted.
  • a bearing (not shown) such as a sliding bearing or a ball bearing is arranged between the inner peripheral surface of the through hole and the outer peripheral surface of the second connecting shaft 72 .
  • a washer is placed between the lower surface of the first link member 61 (the surface facing the first slider 22 side) and the upper surface of the first shaft support portion 27 (the surface facing the first link member 61 side).
  • a second connecting shaft 72 is inserted into the central hole of the washer.
  • a washer is arranged between the lower surface of the first link member 61 (the surface facing the second slider 23 side) and the upper surface of the second shaft support portion 29 (the surface facing the first link member 61 side).
  • a third connecting shaft 73 is inserted into the central hole of the washer.
  • the first link member 61 and the second link member 62 by connecting the first link member 61 and the second link member 62, a plurality of rhombuses arranged in the X direction are formed (Fig. 4).
  • the first portion P1 and the fourth portion P4 correspond to vertices of the rhombus in the X direction.
  • the second portion P2, the third portion P3, the fifth portion P5, and the sixth portion P6 correspond to the vertices of the rhombus in the Y direction.
  • the plurality of tables 32 are formed with through-holes 32A penetrating through the tables 32 in the direction in which the first axis extends (X direction) at both ends in the Y direction.
  • the pitch changer 1 includes a plurality of columnar table guide shafts extending in the X direction (first table guide shaft 51 and second table guide shaft 52). As shown in FIG. 1, the first table guide shaft 51 is inserted into one through hole 32A formed in the table 32 (the through hole 32A positioned on the front side in FIG. 1). On the other hand, the second table guide shaft 52 is inserted into the other through hole 32A formed in the table 32 (through hole 32A on the far side in FIG. 1).
  • the first table guide shaft 51 and the second table guide shaft 52 have one end fixed to the first end plate 11 and the other end fixed to the second end plate 12 .
  • An annular sliding member (not shown) having a small coefficient of friction is arranged between the outer peripheral surface of these table guide shafts and the inner peripheral surface of the through hole 32A.
  • the power unit 41 is for rotating the screw shaft 43 around the rotation axis, and is, for example, a motor. As shown in FIG. 1 , the power section 41 is connected to the outer surface of the first end plate 11 via a bracket 42 . As shown in FIG. 2 , the power section 41 has an output shaft 41A extending into the bracket 42 .
  • the screw shaft 43 extends along the first axis C1 and has a rotation axis. As shown in FIG. 2, the screw shaft 43 has a first end 43A and a second end 43B opposite to the first end 43A. is inserted in the The first end 43A is positioned near the rail 21 . On the other hand, the second end 43B is located inside the bracket 42 and connected to the output shaft 41A by a coupling 80. As shown in FIG. Thereby, the rotation of the output shaft 41A is transmitted to the screw shaft 43 via the coupling 80. As shown in FIG.
  • the nut 45 constitutes a ball screw together with the screw shaft 43. That is, as shown in FIG. 2, a screw shaft 43 is inserted into a through hole 45A formed in a nut 45, and a plurality of balls ( not) are placed. A through hole 46 ⁇ /b>A into which the nut 45 is inserted is formed in the table fixing portion 46 .
  • the table fixing portion 46 is fixed to the side surface of one table 32 closest to the first end plate 11 among the plurality of tables 32 . That is, the table fixing portion 46 is fixed to the end portion of the elastic member 30 in the direction (X direction) in which the first axis C1 extends.
  • the screw shaft 43 is rotated around the rotation axis by the power section 41, and the moving section 44 (the nut 45 and the table fixing section 46) is moved to the first axis C1.
  • the first link member 61 and the second link member 62 rotate relative to each other at the connecting portion, and the expandable member 30 expands and contracts along the first axis C1.
  • the amount of movement of the moving portion 44 in the X direction is precisely controlled by the amount of rotation of the screw shaft 43, so the amount of expansion and contraction of the expandable member 30 is precisely controlled.
  • the pitch changer 1 can position the pitch at an arbitrary position with high accuracy. It is possible and can be changed to any pitch with high precision.
  • FIG. 2 basically has the same configuration and effects as the pitch changer 1 according to Embodiment 1, but differs in the configuration of the supporting member. Only the points different from the pitch changer 1 according to the first embodiment will be described below.

Abstract

Ce changeur de pas comprend un élément de base, un élément de support disposé au-dessus de l'élément de base, un élément d'expansion / de contraction qui est fixé à l'élément de base par l'élément de support et qui est capable de se dilater / se contracter le long d'un premier axe, et une unité d'entraînement qui amène l'élément d'expansion / contraction à se dilater / se contracter le long du premier axe. L'unité d'entraînement comprend un arbre à vis qui s'étend le long du premier axe et qui possède un axe de rotation, une unité d'alimentation qui amène l'arbre à vis à tourner autour de l'axe de rotation, et une unité de déplacement qui est disposée sur l'arbre à vis, est amené à se déplacer le long du premier axe par la rotation de l'arbre de vis autour de l'axe de rotation, et est fixé par rapport à une partie de l'élément d'expansion / de contraction.
PCT/JP2022/013696 2021-06-28 2022-03-23 Changeur de pas WO2023276336A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202280036361.4A CN117355688A (zh) 2021-06-28 2022-03-23 变距装置
KR1020237041775A KR20240004932A (ko) 2021-06-28 2022-03-23 피치 체인저

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-106280 2021-06-28
JP2021106280A JP2023004534A (ja) 2021-06-28 2021-06-28 ピッチチェンジャ

Publications (1)

Publication Number Publication Date
WO2023276336A1 true WO2023276336A1 (fr) 2023-01-05

Family

ID=84692616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/013696 WO2023276336A1 (fr) 2021-06-28 2022-03-23 Changeur de pas

Country Status (5)

Country Link
JP (1) JP2023004534A (fr)
KR (1) KR20240004932A (fr)
CN (1) CN117355688A (fr)
TW (1) TW202300422A (fr)
WO (1) WO2023276336A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271158U (fr) * 1988-11-17 1990-05-30
KR20030085875A (ko) * 2002-05-02 2003-11-07 삼성테크윈 주식회사 부품 셔틀 공급 장치
JP2004076770A (ja) * 2002-08-09 2004-03-11 Yamaha Motor Co Ltd 可変ピッチ機構
WO2018186504A1 (fr) * 2017-04-07 2018-10-11 Ｓｋマシナリー株式会社 Composant double pour dispositif extensible, unité extensible pour dispositif extensible et dispositif extensible
CN211034248U (zh) * 2019-04-25 2020-07-17 大族激光科技产业集团股份有限公司 一种等间距调节模组及应用其的间距调节设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6470529B2 (ja) 2013-09-25 2019-02-13 大森機械工業株式会社 供給装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0271158U (fr) * 1988-11-17 1990-05-30
KR20030085875A (ko) * 2002-05-02 2003-11-07 삼성테크윈 주식회사 부품 셔틀 공급 장치
JP2004076770A (ja) * 2002-08-09 2004-03-11 Yamaha Motor Co Ltd 可変ピッチ機構
WO2018186504A1 (fr) * 2017-04-07 2018-10-11 Ｓｋマシナリー株式会社 Composant double pour dispositif extensible, unité extensible pour dispositif extensible et dispositif extensible
CN211034248U (zh) * 2019-04-25 2020-07-17 大族激光科技产业集团股份有限公司 一种等间距调节模组及应用其的间距调节设备

Also Published As

Publication number Publication date
TW202300422A (zh) 2023-01-01
JP2023004534A (ja) 2023-01-17
KR20240004932A (ko) 2024-01-11
CN117355688A (zh) 2024-01-05

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