CN2715890Y - 带响自锁式钻夹头 - Google Patents
带响自锁式钻夹头 Download PDFInfo
- Publication number
- CN2715890Y CN2715890Y CNU2004200528194U CN200420052819U CN2715890Y CN 2715890 Y CN2715890 Y CN 2715890Y CN U2004200528194 U CNU2004200528194 U CN U2004200528194U CN 200420052819 U CN200420052819 U CN 200420052819U CN 2715890 Y CN2715890 Y CN 2715890Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- drill body
- locking
- screw
- self
- 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.)
- Expired - Fee Related
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Classifications
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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
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/1238—Jaws movement actuated by a nut with conical screw-thread
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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
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
- B23B31/123—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis with locking arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2231/00—Details of chucks, toolholder shanks or tool shanks
- B23B2231/38—Keyless chucks for hand tools
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- 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
- Y10T279/17615—Obliquely guided reciprocating jaws
- Y10T279/17623—Threaded sleeve and jaw
- Y10T279/17632—Conical sleeve
Abstract
本实用新型涉及一种带响自锁式钻夹头,包括有钻体、夹爪、丝母、轴承、丝母套、前套、后套,丝母套的后端设有两个弹性锁紧棘爪,轴承与钻体端面之间设有一棘轮,棘轮与钻体间隙配合,弹性锁紧棘爪始终压在棘轮上,丝母套的后端对应棘轮的位置还开有两个对称的方孔,方孔中活动装有发声弹性棘爪。锁紧时棘轮的端面与钻体产生摩擦力,棘轮将停止转动,此时丝母套带动发声弹性棘爪与棘轮产生相对位移,发出“卡、卡”的响声,弹性锁紧棘爪与棘轮上的棘齿啮合,形成自锁机构。本实用新型不会因振动或冲击使钻具松动,具有结构合理,工作稳定、使用方便,自锁性能可靠等优点,适用于各种钻具的装夹。
Description
技术领域
本实用新型涉及一种钻具夹紧装置,具体地说是一种带响自锁式钻夹头。
背景技术
我们知道,现有手紧钻夹头一般由钻体、夹爪、丝母、丝母套、轴承、前套、后套组成。三个夹爪分别安装在钻体的三个等分斜孔内,丝母安装在钻体的丝母槽内,丝母与夹爪的螺纹形成螺纹传动机构,丝母套与丝母固定连接,前套与丝母或丝母套键连接,后套与钻体固定连接,钻体后部有螺纹孔或锥孔。安装使用时,钻体后部的螺纹孔与动力机具的传动轴螺杆连接,传动轴转动时驱动钻体带动三爪及所夹工具同步转动。装夹工具时,手握并相对转动前套和后套,使与前套键连接的丝母相对钻体中的夹爪转动,经丝母和夹爪的螺纹传动,使夹爪在钻体的斜孔中向前移动而夹住工具柄。现有钻夹头振动或冲击时易使钻具松动,影响工作效率,安全性差;或钻夹头有自锁机构而结构过于复杂而不易形成大批量生产。
发明内容
本实用新型所要解决的技术问题是克服上述现有技术的不足,提供一种结构合理,具有自锁功能、工作效率高、使用安全、方便的带响自锁式钻夹头。
本实用新型解决上述技术问题采用的技术方案是:一种带响自锁式钻夹头,包括有钻体、夹爪、丝母、轴承、丝母套、前套、后套,三个夹爪分别安装在钻体的三个等分斜孔内,丝母安装在钻体的丝母槽内,丝母与夹爪形成螺纹传动机构,丝母套与丝母固定连接,前套与丝母套键连接,其特征是:丝母套的后端设有两个弹性锁紧棘爪,轴承与钻体端面之间设有一棘轮,棘轮与钻体间隙配合,弹性锁紧棘爪始终压在棘轮上,丝母套的后端对应棘轮的位置还开有两个对称的方孔,方孔中活动装有发声弹性棘爪,两弹性棘爪在方孔内可沿圆周方向旋转一定角度。当丝母套带动丝母转动时,棘轮在锁紧棘爪的驱动下随丝母一起转动。锁紧时由于丝母的轴向压力,使棘轮的端面与钻体产生摩擦力,当摩擦力达到一定程度时,棘轮将停止转动。由于轴承处的摩擦力较小,所以丝母套将带动丝母继续旋转一定的角度,此时丝母套带动发声弹性棘爪与棘轮产生相对位移,由于发声棘爪的弹性,钻夹头此时就发出“卡、卡”的响声,弹性锁紧棘爪与棘轮上的棘齿啮合,钻夹头就锁紧了,达到自锁目的。
本实用新型由于采用上述结构,可以实现自锁,并发出“卡、卡”的响声,其操作使用方便,具有结构合理,工作稳定、使用方便,自锁性能可靠等优点,适用于各种钻具的装夹。
附图说明
下面结合附图对本实用新型做进一步描述:
图1是本实用新型的结构示意图;
图2是本实用新型图1的A-A向截面示意图。
图中的标号是:1.钻体、2.后套、3.丝母、4.夹爪、5.丝母套、5-1.锁紧棘爪、6.前套、7.棘轮、8.轴承、9.方孔、10.发声弹性棘爪、10-1.发声棘爪,10-2.平衡棘爪。
具体实施方式
如图1、图2所示,本实用新型一种带响自锁式钻夹头,包括有钻体1、后套2、丝母3、夹爪4、丝母套5、前套6、轴承8。三个夹爪4分别安装在钻体1的三个等分斜孔内,丝母3安装在钻体1的丝母槽内,丝母3与夹爪4的螺纹形成螺纹传动机构,丝母套5与丝母3固定连接,前套6与丝母套5键连接,后套2与钻体1固定连接,钻体后部有螺纹孔或锥孔。上述结构以及与其相连部件的关系属已有技术,此不详述。
图1、图2还可以看出,本实用新型丝母套5的后端设有两个弹性锁紧棘爪5-1,轴承8与钻体1端面之间设有一棘轮7,棘轮7与钻体1间隙配合,弹性锁紧棘爪5-1始终压在棘轮7上,当丝母套5带动丝母3转动时,棘轮7在锁紧棘爪5-1的驱动下可以随丝母3一起转动。丝母套5的后端对应棘轮的位置还开有两个对称的方孔9,方孔9中活动装有发声弹性棘爪10,两弹性棘爪10在方孔9内可沿圆周方向旋转一定角度。
本实用新型当丝母套5带动丝母3转动时,棘轮7在锁紧棘爪5-1的驱动下可以随丝母3一起转动,锁紧时由于丝母3的轴向压力,使棘轮7的端面与钻体1产生摩擦力,当摩擦力达到一定程度时,棘轮7将停止转动。由于轴承8处的摩擦力较小,所以丝母套5将带动丝母3继续旋转一定的角度,此时丝母套5带动发声弹性棘爪10与棘轮产生相对位移,由于发声棘爪10的弹性,钻夹头此时就发出“卡、卡”的响声,这时,弹性锁紧棘爪5-1与棘轮7上的棘齿啮合,钻夹头就锁紧了,形成自锁机构,达到自锁目的。
如图2所示,丝母套5后端对称设有两个弹性锁紧棘爪5-1,弹性锁紧棘爪5-1始终压在棘轮7上。锁紧棘爪5-1设有“V”形坡角,这样,松开时,稍加用力,锁紧棘爪5-1就可在棘轮7上滑过几个齿,此时丝母3的轴向挤压力减小,使棘轮7与钻体1的摩擦力降低,棘轮7将随丝母套5一起转动,钻夹头就松开了。
如图2所示,丝母套5的后端对应棘轮的位置设有两个对称的方孔9,方孔9中活动装有发声弹性棘爪10,两发声弹性棘爪10在方孔内可沿圆周方向旋转一定角度。两发声弹性棘爪可以一个为发声棘爪10-1,用来发声,另一个为平衡棘爪10-2,用来平衡发声棘爪的力量。两棘爪在方孔内可沿圆周方向旋转一定角度,所以棘爪均可在棘轮上滑过几个齿。这样可以方便松开锁紧。
本实用新型具有自锁功能,可以实现自锁,并发出“卡、卡”的响声,不会因振动或冲击使钻具松动,具有结构合理,工作稳定、使用方便,自锁性能可靠等优点,适用于各种钻具的装夹。
Claims (2)
1、一种带响自锁式钻夹头,包括有钻体、夹爪、丝母、轴承、丝母套、前套、后套,三个夹爪分别安装在钻体的三个等分斜孔内,丝母安装在钻体的丝母槽内,丝母与夹爪形成螺纹传动机构,丝母套与丝母固定连接,前套与丝母套键连接,其特征是:丝母套的后端设有两个弹性锁紧棘爪,轴承与钻体端面之间设有一棘轮,棘轮与钻体间隙配合,弹性锁紧棘爪始终压在棘轮上,丝母套的后端对应棘轮的位置还开有两个对称的方孔,方孔中活动装有发声弹性棘爪,两弹性棘爪在方孔内可沿圆周方向旋转一定角度。
2、如权利要求1所述的带响自锁式钻夹头,其特征是:弹性锁紧棘爪设有“V”形坡角。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2004200528194U CN2715890Y (zh) | 2004-08-03 | 2004-08-03 | 带响自锁式钻夹头 |
US11/196,192 US20060027979A1 (en) | 2004-08-03 | 2005-08-02 | Lockable chuck |
EP05107152A EP1627701A1 (en) | 2004-08-03 | 2005-08-03 | Lockable chuck |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2004200528194U CN2715890Y (zh) | 2004-08-03 | 2004-08-03 | 带响自锁式钻夹头 |
Publications (1)
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CN2715890Y true CN2715890Y (zh) | 2005-08-10 |
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ID=34872785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNU2004200528194U Expired - Fee Related CN2715890Y (zh) | 2004-08-03 | 2004-08-03 | 带响自锁式钻夹头 |
Country Status (3)
Country | Link |
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US (1) | US20060027979A1 (zh) |
EP (1) | EP1627701A1 (zh) |
CN (1) | CN2715890Y (zh) |
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CN103394734B (zh) * | 2013-07-19 | 2016-02-17 | 威海达旺五金制品有限责任公司 | 自紧自锁钻夹头 |
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WO2017206491A1 (zh) * | 2016-06-03 | 2017-12-07 | 柳尧亭 | 扁爪自紧钻夹头 |
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US6517088B1 (en) * | 2000-08-08 | 2003-02-11 | Rohm Gmbh | Lockable drill chuck |
US6572310B2 (en) * | 2000-12-08 | 2003-06-03 | Power Tool Holders Incorporated | Self-cleaning drill chuck |
DE10101212A1 (de) * | 2001-01-11 | 2002-07-18 | Roehm Gmbh | Bohrfutter |
CN1217762C (zh) * | 2001-06-10 | 2005-09-07 | 山东威达机械股份有限公司 | 自锁钻夹头 |
US6648341B1 (en) * | 2001-08-24 | 2003-11-18 | Power Tool Holders Incorporated | Chuck with helical jaw bite |
JP2003071618A (ja) * | 2001-08-30 | 2003-03-12 | Yukiwa Seiko Inc | チャック装置 |
US6959931B2 (en) * | 2001-08-30 | 2005-11-01 | Yukiwa Seiko Inc. | Keyless chuck and associated method |
US6554289B1 (en) * | 2001-10-11 | 2003-04-29 | Chum Power Machinery Corp. | Anti-slip type electric drill chuck |
TW515116B (en) * | 2001-12-27 | 2002-12-21 | South Epitaxy Corp | Light emitting diode structure |
JP4015857B2 (ja) * | 2002-01-18 | 2007-11-28 | ユキワ精工株式会社 | チャック装置 |
JP4053301B2 (ja) * | 2002-01-31 | 2008-02-27 | ユキワ精工株式会社 | チャック装置 |
DE10226429A1 (de) * | 2002-06-13 | 2003-12-24 | Roehm Gmbh | Bohrfutter |
CN100388994C (zh) * | 2002-09-20 | 2008-05-21 | 山东威达机械股份有限公司 | 动力夹紧钻夹头 |
FR2847180B1 (fr) * | 2002-11-18 | 2005-02-11 | Amyot Ets Sa | Mandrin porte-outil a systeme de verrouillage |
EP1464426B1 (de) * | 2003-04-04 | 2007-10-24 | Robert Bosch Gmbh | Schnellspannfutter |
CN100404177C (zh) * | 2003-07-15 | 2008-07-23 | 山东威达机械股份有限公司 | 锁紧式钻夹头 |
CN2633481Y (zh) * | 2003-07-17 | 2004-08-18 | 山东威达机械股份有限公司 | 锁紧式钻夹头 |
DE10335500A1 (de) * | 2003-07-31 | 2005-03-03 | Röhm Gmbh | Schnellspannbohrfutter |
JP4616576B2 (ja) * | 2004-04-20 | 2011-01-19 | ユキワ精工株式会社 | チャック装置 |
DE102004044824A1 (de) * | 2004-09-16 | 2006-03-23 | Röhm Gmbh | Bohrfutter |
US7527273B2 (en) * | 2005-09-02 | 2009-05-05 | Jacobs Chuck Manufacturing Company | Locking chuck |
-
2004
- 2004-08-03 CN CNU2004200528194U patent/CN2715890Y/zh not_active Expired - Fee Related
-
2005
- 2005-08-02 US US11/196,192 patent/US20060027979A1/en not_active Abandoned
- 2005-08-03 EP EP05107152A patent/EP1627701A1/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006012796A1 (fr) * | 2004-08-04 | 2006-02-09 | Shandong Weida Machinery Co., Ltd. | Mandrin porte-mèche auto-serrant à main |
CN103394734B (zh) * | 2013-07-19 | 2016-02-17 | 威海达旺五金制品有限责任公司 | 自紧自锁钻夹头 |
Also Published As
Publication number | Publication date |
---|---|
US20060027979A1 (en) | 2006-02-09 |
EP1627701A1 (en) | 2006-02-22 |
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