CN1164389C - 卡盘 - Google Patents

卡盘 Download PDF

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Publication number
CN1164389C
CN1164389C CNB008147922A CN00814792A CN1164389C CN 1164389 C CN1164389 C CN 1164389C CN B008147922 A CNB008147922 A CN B008147922A CN 00814792 A CN00814792 A CN 00814792A CN 1164389 C CN1164389 C CN 1164389C
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CN
China
Prior art keywords
closing sleeve
clamp clip
dop
clamp
chuck
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Expired - Fee Related
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CNB008147922A
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English (en)
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CN1382076A (zh
Inventor
����˹���״İͺ�
托马斯·雷茨巴赫
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Cleamping Tool Werke And Schenk & Co KG GmbH
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Cleamping Tool Werke And Schenk & Co KG GmbH
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Publication of CN1382076A publication Critical patent/CN1382076A/zh
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Publication of CN1164389C publication Critical patent/CN1164389C/zh
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Expired - Fee Related legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117—Retention by friction only, e.g. using springs, resilient sleeves, tapers
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17957—Friction grip
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4949—Deforming component is inserted section
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4958—Separate deforming means remains with joint assembly
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4966—Deformation occurs simultaneously with assembly
    • 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
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30952—Milling with cutter holder

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

本发明涉及一种卡盘，卡盘包括一个用形状稳定的材料(V)制的卡头(2)和夹紧装置(8)，在卡头上设一夹紧套筒(7)，它构成一个用于要夹紧的工件或工具的中央安装座(5)，夹紧装置用于在夹紧套筒(7)弹性变形的情况下将要夹紧的构件固定在安装座(5)内，在夹头(2)内设计一环槽(6)。

Description

卡盘
技术领域
本发明涉及一种卡盘，卡盘包括一个用形状稳定的材料制的卡头和夹紧装置，在卡头上设一夹紧套筒，它构成一个用于要夹紧的工件或工具的中央安装座，夹紧装置用于在夹紧套筒弹性变形的情况下将要夹紧的构件固定在安装座内。
背景技术
尤其由WO 98/32563已知这种卡盘，它例如用于将一工具柄，如钻头柄或铣刀柄，固定在相应的机床心轴上。它包括一个用形状稳定的材料制的基体，基体在其一个端部有一固定锥体，用于夹紧在机床被驱动旋转的心轴内。在基体的另一端设一薄壁的夹紧套筒，它构成一个基本上圆柱形的用于要夹紧的构件的安装座并有一个朝其自由端方向逐渐成锥形的外表面。在此已知的卡盘中，置入安装座内的构件的固定，借助在夹紧套筒上从其自由端方向压上一个收缩环实现，因此夹紧套筒的材料向内朝着要夹紧的构件变形。因为在这种夹紧方式中夹紧套筒的材料受挤压，所以需要很大的夹紧力。另一个缺点在于，此结构的径向刚度不足，因为套在夹紧套筒上的收缩环未与卡头相靠，因此不能支承夹紧套筒。
发明内容
因此本发明的目的是，将前言所述类型的卡盘设计为只需要较小的夹紧力，而且它尤其还有高的径向刚度。
按本发明为达到此目的采取的措施是，在卡头内设计一个环槽，它围绕安装座以构成夹紧套筒并朝卡头的端侧开口；以及，采用一楔形环作为夹紧装置，它有一个环体和多个沿周向彼此隔开距离地设在环体上并基本上沿轴向伸出的夹紧片，夹紧片有一种朝自由端方向逐渐成楔形的横截面，以及可在夹紧套筒沿径向变形的情况下沿轴向压入环槽内。因此，将一个构件固定在卡盘安装座内，按本发明是借助于将夹紧片压入此环槽内实现的。通过将夹紧片沿周向彼此隔开距离地排列，使夹紧套筒的材料只在它与夹紧片接触的那些分区内沿径向向内变形，而夹紧套筒在处于夹紧片之间的圆周区内的材料还可沿径向向外避让到环槽内，所以不象在已知的卡盘中那样材料受挤压，在那里采用整体圆形夹紧。除此之外，压入环槽内的夹紧片外侧支承在实体的卡头上，所以与已知结构中的收缩环相反，它们无需承受全部夹紧力。还有，通过这种支承获得高的径向刚度。
按一种优选的实施形式，恰当地可用金属和尤其用钢制的楔形环总共有三个夹紧片，它们等间距地排列在环体上。
为了在夹紧片与夹紧套筒之间达到均匀的面接触，按一种优选的实施形式，令夹紧片的内壁处于一个朝夹紧片自由端方向扩张的圆锥面上，以及夹紧套筒的外壁设计为基本上与夹紧片的内壁互补并相应地朝卡头端侧方向逐渐成圆锥形。在这里，夹紧片的外壁可以处于一个公共的圆柱面上。
附图说明
有关本发明的其他有利的设计，可参见从属权利要求以及下面参照附图对实施例的说明。在附图中表示：
图1  按本发明的卡盘一种实施形式的透视图；
图2  按图1的卡盘纵剖面；以及
图3  沿图2中线B-B的卡盘剖面。
具体实施方式
附图表示了按本发明的卡盘1的一种实施形式。此卡盘1包括一个用形状稳定的材料制的基体2，它在图中左侧的端部按已知的方式有一个固定锥体3，用于夹紧在机床被驱动旋转的心轴内。在基体2的另一端设一带中央安装座5的连接杆4，在安装座内可插入工具，例如如钻头或铣刀的圆柱形柄。在连接杆4内设计一环腔或环槽6，它围绕着安装座5并与之同轴地定向。其轴向长度大体与所需夹紧区相当的环槽6，朝安装座5方向以一个比较薄的内壁(所述的夹紧套筒7)为界，以及沿径向向外以基体2的壁为界，基体的壁厚比夹紧套筒7的壁厚大许多倍。尤其可在图2中看出，环槽7有一种大体上楔形的横截面，它设计为使夹紧套筒7的外壁朝连接杆4的自由端方向逐渐成圆锥形，而环槽6的外壁是圆柱形的。
为了将工具柄或类似物固定在安装座5内采用一个楔形环8，它有一个环体8a和三个夹紧片8b，夹紧片沿周向彼此隔开距离地设在环体8a上，夹紧片8b朝其自由端方向逐渐成楔形，在这种情况下其外壁处于一个圆柱面上，此圆柱面的直径大体与环槽6的外径相等，以及内壁对应于夹紧套筒7的外壁处于一个朝夹紧片自由端方向张开的圆锥面上。楔形环8可从连接杆4端侧那里推入环槽6内，因此使夹紧套筒7在与夹紧片8b的接触区沿径向向内变形，并借此固定置入安装座5中的工具柄或类似物。与此同时，夹紧套筒7在处于夹紧片8b之间的圆周区内的材料，可向外避让到环槽6中。当楔形环8推入环槽6内时，夹紧片8b外侧支承在基体2上，从而获得此结构高的径向刚度。
为了脱开此连接，采用图中未表示的液压机构，借助它可在环槽6的图中左侧端加入液压介质，以便在环槽6内造成压力，通过此压力将基体2少量扩张，所以楔形环8可轻易地从环槽6拆出。

Claims (6)

1.卡盘，包括一个用形状稳定的材料制的卡头(2)和夹紧装置(8)，在卡头上设一个夹紧套筒(7)，它构成一个用于要夹紧的工件或工具的中央安装座(5)，夹紧装置用于在夹紧套筒(7)弹性变形的情况下将要夹紧的构件固定在安装座(5)内，其特征为：在卡头(2)内设计一个环槽(6)，它围绕安装座(5)以构成夹紧套筒(7)并朝卡头(2)的端侧开口，以及，采用一楔形环(8)作为夹紧装置，它有一个环体(8a)和多个沿周向彼此隔开距离地设在环体上并沿轴向伸出的夹紧片(8b)，夹紧片具有朝自由端方向楔形逐渐变薄的横截面，以及可在夹紧套筒(7)沿径向变形的情况下沿轴向压入环槽(6)内。
2.按照权利要求1所述的卡盘，其特征为：楔形环(8)总共有三个夹紧片(8b)，它们等间距地排列在环体(8a)上。
3.按照权利要求1或2所述的卡盘，其特征为：夹紧片(8b)的外壁处于一个公共的圆柱面上。
4.按照权利要求1或2所述的卡盘，其特征为：夹紧片(8b)的内壁处于一个朝夹紧片自由端方向扩张的圆锥面上。
5.按照权利要求4所述的卡盘，其特征为：夹紧套筒(7)的外壁设计为与夹紧片(8b)的内壁互补以及相应地朝卡头(2)端侧方向圆锥形逐渐变薄。
6.按照权利要求1或2所述的卡盘，其特征为：楔形环(8)用金属制造。
CNB008147922A 1999-12-20 2000-11-09 卡盘 Expired - Fee Related CN1164389C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961563A DE19961563C1 (de) 1999-12-20 1999-12-20 Spannfutter
DE19961563.2 1999-12-20

Publications (2)

Publication Number Publication Date
CN1382076A CN1382076A (zh) 2002-11-27
CN1164389C true CN1164389C (zh) 2004-09-01

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CNB008147922A Expired - Fee Related CN1164389C (zh) 1999-12-20 2000-11-09 卡盘

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US (1) US6666461B1 (zh)
EP (1) EP1239985B1 (zh)
JP (1) JP2003517941A (zh)
CN (1) CN1164389C (zh)
AT (1) ATE245076T1 (zh)
DE (2) DE19961563C1 (zh)
WO (1) WO2001045884A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101356033B (zh) * 2006-06-27 2011-09-07 伊斯卡有限公司 用于将切削刀具或工件可拆卸地固定到机床上的卡盘

Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
DE50302513D1 (de) * 2003-11-05 2006-04-27 Schunk Gmbh & Co Kg Dehnspanneinrichtung
DE102005061012B4 (de) * 2005-12-19 2008-11-27 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Spanneinrichtung
GB0609180D0 (en) * 2006-05-09 2006-06-21 Gsi Group Ltd Tool holder spindles
DE202008014605U1 (de) * 2008-11-04 2009-12-17 Otec Präzisionsfinish GmbH Spannvorrichtung für Werkstücke
SE534816C2 (sv) * 2010-05-04 2012-01-10 Gunnar Winkvist Anordning inrättad för att alstra en förspänning mellan två element som skall anordnas sinsemellan åtskilda på en axel.
WO2014167669A1 (ja) * 2013-04-10 2014-10-16 大昭和精機株式会社 ハイドロチャック
CN103698212B (zh) * 2013-12-24 2015-08-19 哈尔滨工业大学 一种管材环向的厚向异性系数直接测定方法
JP6568941B2 (ja) * 2015-06-30 2019-08-28 日立オートモティブシステムズ株式会社 チャック装置
US11465216B1 (en) * 2021-04-26 2022-10-11 Techniks, LLC Tool holder with stress fit rods

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101356033B (zh) * 2006-06-27 2011-09-07 伊斯卡有限公司 用于将切削刀具或工件可拆卸地固定到机床上的卡盘

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Publication number Publication date
US6666461B1 (en) 2003-12-23
CN1382076A (zh) 2002-11-27
WO2001045884A1 (de) 2001-06-28
ATE245076T1 (de) 2003-08-15
DE50002945D1 (de) 2003-08-21
DE19961563C1 (de) 2001-06-13
JP2003517941A (ja) 2003-06-03
EP1239985A1 (de) 2002-09-18
EP1239985B1 (de) 2003-07-16

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