WO2023045112A1 - Appareil d'entraînement de pièce non circulaire pour usinage par machine-outil - Google Patents

Appareil d'entraînement de pièce non circulaire pour usinage par machine-outil Download PDF

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Publication number
WO2023045112A1
WO2023045112A1 PCT/CN2021/137724 CN2021137724W WO2023045112A1 WO 2023045112 A1 WO2023045112 A1 WO 2023045112A1 CN 2021137724 W CN2021137724 W CN 2021137724W WO 2023045112 A1 WO2023045112 A1 WO 2023045112A1
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WO
WIPO (PCT)
Prior art keywords
driving
fixed
drive ring
circular workpiece
ring
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2021/137724
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English (en)
Chinese (zh)
Inventor
金丽丽
朱伟
许方富
赵瑜
颜建国
王威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou Institute of Zhejiang University
Original Assignee
Taizhou Institute of Zhejiang University
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 Taizhou Institute of Zhejiang University filed Critical Taizhou Institute of Zhejiang University
Publication of WO2023045112A1 publication Critical patent/WO2023045112A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general

Definitions

  • the invention relates to a non-circular workpiece driving fixture for machine tool processing.
  • the machine tool When the machine tool grinds the peripheral surface of the workpiece, it needs to use the corresponding chuck to clamp the workpiece and drive the workpiece to rotate to cooperate with the machine tool for processing.
  • Existing machine tools can use three-point clamping fixtures for cylindrical workpieces, but it is not easy to clamp special-shaped workpieces such as toothed parts with non-circular ends.
  • Use a clamp with a slot for non-circular workpieces The workpiece is not necessarily aligned with the card slot during the centering process of the tip, and manual correction is required, which has a great impact on machining accuracy and machining efficiency.
  • the purpose of the present invention is to solve the technical problems involved in the above-mentioned background art.
  • the present invention provides a non-circular workpiece driving fixture for machine tool processing, which includes a top, on which a connecting sleeve is axially sleeved and fixed, and the outer surface of the connecting sleeve is sequentially sleeved along its axial direction
  • the back cover sheet metal and the drive ring are fixed, and at least one deep groove ball bearing is sleeved in the inner cavity formed by the connection sleeve, the back cover sheet metal and the drive ring, and the drive ring
  • the middle part of the outer surface is sleeved with a circlip along its axial direction, and a plurality of guide rods and a plurality of limit screws extend along the outer surface of the drive ring in the axial direction, and one end of each guide rod can be movably inserted into the In the driving ring, the other end is fixed as a whole with the floating part; one end of each limit screw is fixed on the driving ring, and the other
  • the cap is stuck on the outside of the T-shaped counterbore, and a driving piece is coaxially fixed in the floating piece, and the floating piece is fixed on each of the guide rods; the driving piece has a special shape suitable for matching a non-circular workpiece hole.
  • the driving member has a tapered surface of a chute suitable for central positioning of a non-circular workpiece.
  • a sealing ring is set between the connecting sleeve and the driving ring.
  • a spring positioning step extends along the edge of the through hole on the outer surface of the driving ring, and the snap ring is sleeved on the spring positioning step.
  • the driving ring is respectively provided with a toggle groove, a guide rod slide groove and a threaded hole; the toggle groove cooperates with the power head of the machine tool to stir the rotation of the drive ring, and the guide rod slide groove is used for The guide of the guide rod, the threaded hole is used for installing the limit screw.
  • Fig. 1 is a sectional view of an embodiment of the present invention
  • Fig. 2 is a three-dimensional schematic diagram of an embodiment of the present invention.
  • Fig. 3 is a schematic structural view of a driving ring in an embodiment of the present invention.
  • Fig. 4 is a structural schematic diagram of a driving member in an embodiment of the present invention.
  • Fig. 5 is a usage status diagram of an embodiment of the present invention.
  • Figure 6 is a partial enlarged view of Figure 5;
  • Fig. 7 is a schematic structural diagram of a limit screw in an embodiment of the present invention.
  • an embodiment of the non-circular workpiece driving fixture for machine tool processing of the present invention includes a top 1, and a connecting sleeve 2 is sleeved and fixed on the top 1 in the axial direction, and the outer surface of the connecting sleeve 2 The surface is sequentially sleeved and fixed with a back cover sheet metal 5 and a drive ring 4 along its axial direction, and the inner cavity formed by the connection sleeve 2, the back cover sheet metal 5 and the drive ring 4 is sleeved in the connection sleeve 2 At least one deep groove ball bearing 6 is installed, and the middle part of the outer surface of the drive ring 4 is sleeved with a snap spring 7 along its axial direction, and a plurality of guide rods 10 extend along the axial direction on the outer surface of the drive ring 4 and a plurality of limit screws 13, one end of each guide rod 10 can be movably inserted into the drive ring 4, and the other end is
  • the guide rod 10 and the floating part 11 are fixed by set screws, and the floating part 11 and the driving part 12 are fixed by set screws, that is, the guide rod 10, the floating part 11 and the driving part 12 are fixed as a whole .
  • the guide rod 10 plays a guiding role on the one hand, and the floating member 11 and the driving member 12 all move along the limit screw 13 according to the preset trajectory of the guide rod 10 (ie, the guide rod chute II).
  • the guide rod 10 inserted in the driving ring 4 drives the floating part 11 and the driving part 12 to rotate together.
  • the moving space of the guide rod 10 is the guide rod chute II in the drive ring 4, the limit screw 13 is fixed at the end of the drive ring 4, and at the end of the floating part 11, the diameter of the nut 131 of the limit screw 13 Greater than the diameter of its screw rod part, the nut 131 stuck on the outside of the T-shaped counterbore of the floating part 11 (that is, the screw part of the limit screw 13 passes through the smaller diameter part of the T-shaped counterbore, and the nut 131 is located at the T-shaped counterbore.
  • the larger part of the diameter in the type counterbore restricts the floating member 11 to slide out from the stop screw 13, so that the guide rod 10 will not slip out of the drive ring 4, and the floating member 11 can only be placed between the drive ring 4 and the nut two at most. floating between.
  • the top 1 When working, the top 1 is installed on the fixed end of the power head of the machine tool and fixed, and the non-circular workpiece 14 rests on the surface of the top 1 for center positioning, and at the same time pushes against the surface of the driving part 12 to compress the spring 9 and the floating part 11, and the power head of the machine tool moves
  • the toggle groove 1 of the driving ring 4 rotates, and then drives the floating part 11 and the driving part 12 to rotate.
  • the spring 9 pops up, and the driving part 12 is nested in the
  • the non-circular workpiece 14 is placed on and drives the non-circular workpiece 14 to rotate, so that the non-circular workpiece 14 can be processed in cooperation with the machine tool.
  • the driving member 12 has a tapered chute surface 122 suitable for centrally positioning the non-circular workpiece 14 , and a plurality of tapered chute surfaces 122 surround the edge of the shaped hole 121 .
  • the non-circular end of the non-circular workpiece 14 is initially in surface contact with the driver 12, and the driver 12 rotates and the non-circular workpiece 14 does not rotate at the beginning.
  • the end of the non-circular workpiece 14 has a certain pressure on the surface of the driver 12, and the existence of the chute conical surface 122 expands the success rate of the non-circular workpiece 14 sliding into the special-shaped hole 121 of the driver 12 during the rotation process, shortening the The docking time of the two can achieve rapid center positioning of the non-circular workpiece 14 .
  • a sealing ring 8 is sleeved between the connecting sleeve 2 and the driving ring 4 . Sealing ring 8 can prevent bearing oil from leaking.
  • FIG. 1 there are three deep groove ball bearings 6 arranged axially side by side.
  • Three deep groove ball bearings 6 can better support the weight of the top 1, etc., making the operation more stable and reliable.
  • a spring positioning step IV is extended on the outer surface of the drive ring 4 along the edge of the through hole, and the snap ring 7 is sleeved on the spring positioning step IV.
  • the spring positioning step IV can effectively limit the position of the jumper 7 to prevent the device from being displaced due to vibration during operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

Est divulgué dans la présente invention un appareil d'entraînement de pièce non circulaire permettant l'usinage par machine-outil, comprenant une pointe. Un manchon d'accouplement est fixé sur la pointe. Une tôle de protection arrière et une bague d'entraînement sont manchonnées séquentiellement et fixées à une surface extérieure du manchon d'accouplement. Au moins un roulement rigide à billes est monté dans une cavité interne entourée par le manchon d'accouplement, la tôle de protection arrière et la bague d'entraînement. Un organe de fixation rotatif est emmanché au centre d'une surface latérale extérieure de la bague d'entraînement le long d'une direction axiale de la bague d'entraînement. Une pluralité de tiges de guidage et une pluralité de vis de limitation s'étendent sur la surface latérale extérieure de la bague d'entraînement le long de sa direction axiale. Une extrémité de chaque tige de guidage est insérée dans la bague d'entraînement, et l'autre extrémité de la tige de guidage est fixée à un élément flottant. Une extrémité de chaque vis de limitation est fixée sur la bague d'entraînement, et l'autre extrémité de la vis de limitation pénètre dans un contre-alésage en T de l'élément flottant, et est serrée sur un côté extérieur de l'alésage au moyen d'un écrou sur une partie extrémité de la vis de limitation. Un élément d'entraînement est fixé de manière coaxiale dans l'élément flottant. L'élément flottant est fixé sur chaque tige de guidage. L'élément d'entraînement est muni d'un trou de forme spéciale conçu pour s'adapter à une pièce non circulaire. La présente invention peut être destinée à entraîner en rotation une pièce de surface non cylindrique en vue de son usinage sans alignement manuel, l'automatisation est facile à réaliser, et le temps de montage est réduit.
PCT/CN2021/137724 2021-09-27 2021-12-14 Appareil d'entraînement de pièce non circulaire pour usinage par machine-outil Ceased WO2023045112A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111132709.3A CN113814770B (zh) 2021-09-27 2021-09-27 机床加工用非圆工件驱动夹具
CN202111132709.3 2021-09-27

Publications (1)

Publication Number Publication Date
WO2023045112A1 true WO2023045112A1 (fr) 2023-03-30

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CN (1) CN113814770B (fr)
WO (1) WO2023045112A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN116872141A (zh) * 2023-09-05 2023-10-13 国营川西机器厂 一种航空发动机齿轮轴轴承分解装置及分解系统

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* Cited by examiner, † Cited by third party
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CN117754055A (zh) * 2023-12-04 2024-03-26 东风汽车零部件(集团)有限公司刃量具分公司 一种提高大偏距盘类齿轮工件珩齿精度的装置和方法

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CN112548855A (zh) * 2020-12-29 2021-03-26 浙江大学台州研究院 磨床正反转机械夹头

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DE3338562A1 (de) * 1983-10-24 1985-08-29 Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart Stirnseitenmitnehmer
CN105710663A (zh) * 2014-12-01 2016-06-29 无锡培基机械有限公司 一种高精度弹性传动机构
CN205799038U (zh) * 2016-05-26 2016-12-14 广西玉柴博耐特电器有限公司 一种用于起动机电枢外圆精车的夹具
CN208342572U (zh) * 2018-06-14 2019-01-08 陕西秦川格兰德机床有限公司 弹性伸缩卡接式工件端面驱动装置
CN210922453U (zh) * 2019-08-30 2020-07-03 东风汽车有限公司 可换式浮动销拨动机构
CN112548855A (zh) * 2020-12-29 2021-03-26 浙江大学台州研究院 磨床正反转机械夹头

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116872141A (zh) * 2023-09-05 2023-10-13 国营川西机器厂 一种航空发动机齿轮轴轴承分解装置及分解系统

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CN113814770A (zh) 2021-12-21
CN113814770B (zh) 2024-03-19

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