CN2170816Y - 卷簧式三爪夹头 - Google Patents

卷簧式三爪夹头 Download PDF

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Publication number
CN2170816Y
CN2170816Y CN 93234467 CN93234467U CN2170816Y CN 2170816 Y CN2170816 Y CN 2170816Y CN 93234467 CN93234467 CN 93234467 CN 93234467 U CN93234467 U CN 93234467U CN 2170816 Y CN2170816 Y CN 2170816Y
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China
Prior art keywords
bowl body
alms bowl
claw
taper hole
jaw chuck
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Expired - Fee Related
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CN 93234467
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English (en)
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李远坤
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Individual
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Abstract

一种卷簧式三爪夹头,有一个带内锥孔的钵体, 在锥孔内有三个带锥面的卡爪与其相配合,三爪内部 有一道槽,放置有卷簧,使卡爪与钵体内锥孔紧密接 触,在三个卡爪外有一个套圈,钵体外面有螺纹与外 壳相连接。本实用新型卡爪完全置于钵体锥孔内,增 强了夹持力,使用套圈与卷簧定位,能较好地维持中 心。

Description

本实用新型涉及一种刀具夹具,它用于夹持直柄钻头、铣刀、铰刀等工具的夹具。
现有的扳手式钻夹头,其卡爪锥体小端朝外,沿斜孔上下移动,这种夹具夹紧刀具的夹持力不大,且易偏离中心。
本实用新型的目的在于提供一种卡爪不外露,能较好维持中心,夹持力强的夹头。
本实用新型是这样实现的:有一个带内锥孔的钵体,在锥孔内有三个带锥面的卡爪与其相配合,三爪内部有一道槽,放置有卷簧,使卡爪与钵体内锥孔紧密接触,在三个卡爪外有一个套圈,钵体外面有螺纹与外壳相连接。
下面结合附图对本实用新型加以描述。
附图是实用新型的剖视图。
参照附图,钵体1,上端有一锥孔,是与机床轴相连接的孔,下端有一锥孔,大头朝下,锥孔内有三个带锥面的卡爪2与其相配合,三个卡爪2内部有一道槽,放置有卷簧4,在卷簧4的强力下,使其带锥面的卡爪2与钵体1内锥孔紧密接触,卡爪2外部有一道槽置于套圈5,将三个卡爪套在一起,因而使三个卡爪2轴向移动量一致。钵体1与外壳3用螺纹连接。卡爪2、外壳3、卷簧4、套圈5组成一个装配件,用专用扳手转动外壳3,套圈5跟着转,带动三个卡爪2在钵体1锥孔中上下移动,若装配件往上移动,三个卡爪2形成的夹持孔缩小,若装配件往下移动,三个卡爪2形成的夹持孔增大,从而实现夹紧和拆卸不同直径的刀具。本实用新型钵体1上部锥孔也可加工成螺纹状,以便与冲击式电钻连接。
本实用新型卡爪完全置于钵体锥孔内,增强了夹持力,使用套圈与卷簧定位,能较好地维持中心。

Claims (1)

1、一种卷簧式三爪夹头,由钵体、卡爪、外套等组成,其特征在于:有一个带内锥孔的钵体,在锥孔内有三个带锥面的卡爪与其相配合,三爪内部有一道槽,放置有卷簧,使卡爪与钵体内锥孔紧密接触,在三个卡爪外有一个套圈,钵体外面有螺纹与外壳相连接。
CN 93234467 1993-08-05 1993-08-05 卷簧式三爪夹头 Expired - Fee Related CN2170816Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93234467 CN2170816Y (zh) 1993-08-05 1993-08-05 卷簧式三爪夹头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93234467 CN2170816Y (zh) 1993-08-05 1993-08-05 卷簧式三爪夹头

Publications (1)

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CN2170816Y true CN2170816Y (zh) 1994-07-06

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Family Applications (1)

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CN 93234467 Expired - Fee Related CN2170816Y (zh) 1993-08-05 1993-08-05 卷簧式三爪夹头

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CN (1) CN2170816Y (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947658A (zh) * 2010-09-26 2011-01-19 陈丰土 机床卡盘
CN105014452A (zh) * 2015-07-31 2015-11-04 梧州奥卡光学仪器有限公司 压圈内圆车夹具
CN108907835A (zh) * 2018-07-03 2018-11-30 芜湖恒跃智能装备有限公司 一种车床用夹具定位装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947658A (zh) * 2010-09-26 2011-01-19 陈丰土 机床卡盘
CN105014452A (zh) * 2015-07-31 2015-11-04 梧州奥卡光学仪器有限公司 压圈内圆车夹具
CN108907835A (zh) * 2018-07-03 2018-11-30 芜湖恒跃智能装备有限公司 一种车床用夹具定位装置

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