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公开(公告)号：US20200215654A1
公开(公告)日：2020-07-09
申请号：US16616096
申请日：2018-08-27
发明人： Wenzhang Qiao , Cong Liu , Zhonggang Liu
摘要： A cooling chuck relating to a technical field of mechanical manufacturing of drill chuck is provided, including a drill body, a clamping jaw, a nut, a sleeve and a back cover, wherein: a connection hole is provided at a back end of the drill body for connecting to a drive mechanism; a clamping jaw outlet is provided at a front end of the drill body; a clamping jaw cavity is arranged on the drill body outside the connection hole at the back end of the drill body; the clamping jaw is arranged in the clamping jaw cavity; a thread section is arranged at a back part of the clamping jaw; the thread section at the back part of the clamping jaw is engaged with the nut arranged at an outer side surface of the clamping jaw cavity; the nut is connected to the sleeve; the back cover is arranged at the back end of the drill body; a clamping jaw slope is arranged at a back end of the clamping jaw; the clamping jaw slope inclines downward clockwise or anticlockwise along a rotation direction of the drill body; air inlets are provided on the back cover; through rotation of the drill body, the clamping jaw slope at the back end of the clamping jaw generates wind under effect of rotary force, and the wind enters the drill body through the air inlets, so as to decrease a product temperature. The present invention has a simple structure, is convenient to use, and is able to decrease the product temperature and improve a product life.
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公开(公告)号：US20210197292A1
公开(公告)日：2021-07-01
申请号：US17057117
申请日：2018-12-04
发明人： Yanzhao LI , Ningbo WEI , Cong LIU
IPC分类号： B23B31/12
摘要： Some embodiments of the present disclosure provide a drill chuck. The drill chuck includes: a drill body; jaws, partially disposed in the drill body, external threads being provided on an outer wall of the jaws; a locking member, disposed on the outer side of the drill body, the locking member being provided with internal threads, the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body; a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate, the driving assembly being disposed between a housing and the locking member, the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; and a locking structure, located between the housing and the jaws.
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公开(公告)号：US11198184B2
公开(公告)日：2021-12-14
申请号：US17057117
申请日：2018-12-04
发明人： Yanzhao Li , Ningbo Wei , Cong Liu
IPC分类号： B23B31/12
摘要： Some embodiments of the present disclosure provide a drill chuck. The drill chuck includes: a drill body; jaws, partially disposed in the drill body, external threads being provided on an outer wall of the jaws; a locking member, disposed on the outer side of the drill body, the locking member being provided with internal threads, the locking member and the jaws being in threaded fit to enable the jaws to be movably disposed in the drill body; a driving assembly, disposed on an outer side of the locking member, the driving assembly being configured to drive the locking member to rotate, the driving assembly being disposed between a housing and the locking member, the housing driving the locking member to rotate by the driving assembly to enable the jaws to move in the drill body; and a locking structure, located between the housing and the jaws.
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公开(公告)号：US20150165529A1
公开(公告)日：2015-06-18
申请号：US14400706
申请日：2013-07-31
发明人： Wenzhang Qiao
IPC分类号： B23B31/12
CPC分类号： B23B31/123 , B23B2231/38 , B23B2260/022 , Y10S279/902 , Y10T279/17632
摘要： A drill chuck comprises: a drill body (1) having a plurality of inclined guiding holes distributed evenly along a circumferential direction; a plurality of clamping jaws (9) arranged slidably in the inclined guiding holes respectively and having external thread segments (91); an outer socket (2) rotatably fitted over the drill body; and a nut (8) engaged with the clamping jaws and connected to the out socket in a driving manner; further comprises: a locking mechanism located between a first thrust surface of the drill body and the nut and having a locking plate (3) and locking balls (4), wherein an end face of the locking plate facing the nut is thereon provided with a plurality of slide grooves (31) having a helix angle, the helix angle of the slide grooves is less than a friction angle between the locking balls and locking plate, and the locking balls are movably arranged along the slide grooves. The drill chuck can prevent itself from loosening by a simple structure during operation.
摘要翻译： 钻夹头包括：具有沿圆周方向均匀分布的多个倾斜导向孔的钻体（1）; 分别可滑动地布置在倾斜导向孔中并具有外螺纹段（91）的多个夹钳（9）; 可旋转地装配在钻体上的外套筒（2）; 以及与所述夹爪接合并以驱动方式连接到所述出口的螺母（8）; 进一步包括：锁定机构，位于钻体的第一推力表面和螺母之间并且具有锁定板（3）和锁定球（4），其中锁定板的面向螺母的端面设置有 多个具有螺旋角的滑动槽（31），滑动槽的螺旋角小于锁定球和锁定板之间的摩擦角，并且锁定球沿着滑动槽可移动地布置。 在操作过程中钻头卡盘可以通过简单的结构防止其松动。
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公开(公告)号：US11117198B2
公开(公告)日：2021-09-14
申请号：US16616096
申请日：2018-08-27
发明人： Wenzhang Qiao , Cong Liu , Zhonggang Liu
摘要： A cooling chuck relating to a technical field of mechanical manufacturing of drill chuck is provided, including a drill body, a clamping jaw, a nut, a sleeve and a back cover, wherein: a connection hole is provided at a back end of the drill body for connecting to a drive mechanism; a clamping jaw outlet is provided at a front end of the drill body; a clamping jaw cavity is arranged on the drill body outside the connection hole at the back end of the drill body; the clamping jaw is arranged in the clamping jaw cavity; a thread section is arranged at a back part of the clamping jaw; the thread section at the back part of the clamping jaw is engaged with the nut arranged at an outer side surface of the clamping jaw cavity; the nut is connected to the sleeve; the back cover is arranged at the back end of the drill body; a clamping jaw slope is arranged at a back end of the clamping jaw; the clamping jaw slope inclines downward clockwise or anticlockwise along a rotation direction of the drill body; air inlets are provided on the back cover; through rotation of the drill body, the clamping jaw slope at the back end of the clamping jaw generates wind under effect of rotary force, and the wind enters the drill body through the air inlets, so as to decrease a product temperature. The present invention has a simple structure, is convenient to use, and is able to decrease the product temperature and improve a product life.
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公开(公告)号：US20210154751A1
公开(公告)日：2021-05-27
申请号：US17044294
申请日：2019-05-21
发明人： Yanzhao LI , Ningbo WEI
摘要： The present disclosure provides a clamping jaw assembly and a drill chuck, which solve technical problems of complex structure, small clamping range, poor clamping effect, and high cost of the existing clamping jaw assembly. The clamping jaw assembly includes a first clamping jaw and a second clamping jaw, both of which include a screwing section, an outer surface of each screwing section is arranged with a thread, a top end of each screwing section is arranged with a clamping section, the screwing section is fixedly connected with corresponding damping section. An inner side of the clamping section of the first clamping jaw includes a first clamping part, and an inner side of the clamping section of the second clamping jaw includes a second clamping part matched with the first clamping part. The present disclosure can be widely used in fields of electric tools, machine tool accessories and medical equipment, etc.
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公开(公告)号：US09744601B2
公开(公告)日：2017-08-29
申请号：US14400706
申请日：2013-07-31
发明人： Wenzhang Qiao
IPC分类号： B23B31/165 , B23B31/12
CPC分类号： B23B31/123 , B23B2231/38 , B23B2260/022 , Y10S279/902 , Y10T279/17632
摘要： A drill chuck comprises: a drill body having a plurality of inclined guiding holes distributed evenly along a circumferential direction; a plurality of clamping jaws arranged slidably in the inclined guiding holes respectively and having external thread segments; an outer socket rotatably fitted over the drill body; and a nut engaged with the clamping jaws and connected to the out socket in a driving manner; further comprises: a locking mechanism located between a first thrust surface of the drill body and the nut and having a locking plate and locking balls, wherein an end face of the locking plate facing the nut is thereon provided with a plurality of slide grooves having a helix angle, the helix angle of the slide grooves is less than a friction angle between the locking balls and locking plate, and the locking balls are movably arranged along the slide grooves.
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