WO2008009170A1 - Hand fastening drill chuck and bearing collar self-locking mechanism for the same - Google Patents

Hand fastening drill chuck and bearing collar self-locking mechanism for the same Download PDF

Info

Publication number
WO2008009170A1
WO2008009170A1 PCT/CN2006/001637 CN2006001637W WO2008009170A1 WO 2008009170 A1 WO2008009170 A1 WO 2008009170A1 CN 2006001637 W CN2006001637 W CN 2006001637W WO 2008009170 A1 WO2008009170 A1 WO 2008009170A1
Authority
WO
WIPO (PCT)
Prior art keywords
self
locking mechanism
bearing ring
drill chuck
hand
Prior art date
Application number
PCT/CN2006/001637
Other languages
French (fr)
Chinese (zh)
Inventor
Zhenqian Hu
Luwen Zhang
Original Assignee
Zhenqian Hu
Luwen Zhang
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 Zhenqian Hu, Luwen Zhang filed Critical Zhenqian Hu
Priority to PCT/CN2006/001637 priority Critical patent/WO2008009170A1/en
Publication of WO2008009170A1 publication Critical patent/WO2008009170A1/en

Links

Classifications

    • 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
    • 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
    • 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

Definitions

  • the invention relates to a hand tight drilling chuck and a bearing ring self-locking mechanism in the hand tight drilling chuck. Background technique
  • Hand-tight drill chucks are a common tool used in daily life, mainly for eye-catching, drilling holes, etc. when installing or fixing items, building, and decoration.
  • the existing hand drill chuck includes a clamping body, a front cap, three jaws, a screw ring, a bearing component, a rear cap and a cover, wherein the clamping body is provided with three column holes for receiving the guiding jaws
  • the working principle is to use the front cap to drive the screw ring to rotate and drive the three jaws for clamping and loosening action, so as to achieve the purpose of clamping and loosening the drill bit.
  • the object of the present invention is to provide a self-locking mechanism for a bearing ring of a hand-tight drill chuck, which can be self-locked by a collet chuck, and is less prone to loosening and breaking during use.
  • Another object of the present invention is to provide a hand-tight drill chuck having a self-locking mechanism, which has the advantages of no looseness during use and safety.
  • the bearing ring self-locking mechanism of the hand-tight drill chuck of the present invention comprises a bearing ring, at least one bead frame and balls mounted on the bead frame, wherein:
  • the bearing ring is fixedly connected with the outer side of the clamping body in the hand drill chuck, at least at the end surface thereof a groove is provided, and the inner bottom surface of the groove is inclined from high to low from the inside to the outside;
  • the bead frame is made of an elastic material and is radially movable along the radius of the bearing ring and mounted on the bearing ring. In the recess, the bead frame is provided with a hole for mounting the ball.
  • the bead frame includes two or more holes for mounting the balls.
  • the fixed connection of the bearing ring to the outer side of the drill chuck is by a rib, a projection, a groove connection or an interference connection that can be engaged with each other.
  • the balls are steel balls that are rotatably mounted in the holes of the bead frame when unstressed.
  • the hole of the bead frame is an open hole.
  • the bead frame is provided with wings on both sides of the projection for radial positioning with the bearing ring. .
  • the hand drill chuck of the present invention comprises a clamping body, a plurality of jaws, a screw ring, a front cap, a rear cap and a self-locking mechanism, the outer wall of the screw ring is fixedly connected with the front cap, and the screw ring is threaded Engaging with the clamping jaw, the clamping jaw is inserted into the column hole of the clamping body, the self-locking mechanism is disposed at an outer circumference of the clamping body and an end of the spiral ring, and the self-locking mechanism includes a bearing ring, at least one bead frame and a ball mounted on the bead frame, the bearing ring being fixedly connected to an outer side surface of the body of the hand drill chuck, at least one groove is provided at an end surface thereof, and the inside of the groove The bottom surface is inclined from high to low from the inside to the outside; the bead frame is made of an elastic material and is radially movable along a radius of the bearing ring and is mounted in a groove of the
  • the clamping body has a hollow cylinder, and a shoulder groove is disposed in a middle portion of the outer wall of the cylinder, and the screw ring and the self-locking mechanism are disposed in the shoulder groove.
  • the self-locking mechanism of the invention is used for replacing the bearing mechanism in the existing hand-tight drill chuck, and can not only realize the function of the existing hand-tight drill chuck, but also can achieve the purpose of self-locking by the setting of the self-locking mechanism, preventing the clip
  • the compact bit is loosened by vibration during use.
  • the hand-clamping bit of the invention can achieve self-locking purpose by merely changing the shape of the two parts in the original bearing component by improving the original bearing component, and has the advantages of convenient installation, self-locking and good results, economical and practical. , compact structure, simple operation and so on.
  • Figure 1 is a schematic cross-sectional view of the drill collar of the present invention
  • FIG. 2 is a perspective exploded view of the hand-tight drill chuck of the present invention
  • FIG. 3 is a perspective exploded view of the self-locking mechanism of the present invention.
  • Figure 4 is a working principle diagram of the self-locking mechanism of the present invention.
  • Fig. 5 is a perspective exploded view showing another embodiment of the self-locking mechanism of the present invention. detailed description
  • the hand drill chuck of the present invention includes a clamping body 1 and three jaws.
  • the clamping body 1 is substantially a hollow cylinder, and is provided at one end of the cylinder as a screw hole 11 or a taper hole for coupling with the driving shaft; the outer side wall of the middle portion of the cylinder is provided with a self-locking mechanism for accommodating the bearing ring and
  • the shoulder groove 13 of the spiral ring 4 is provided with three axially symmetric column holes 12 at the shoulder groove 13, which are inclined with respect to the center of rotation, as shown in FIG.
  • the spiral ring 4 includes two parts that can be assembled into a circular ring (may also be three or four parts that are easy to assemble, or can be integrated), and is directly buckled at the shoulder groove 13 of the clamping body 1 during assembly. , After assembly, the thread 40 of the screw ring 4 meshes with the thread 31 of the jaw 3, that is, the three jaws 3 can be moved while rotating the screw ring 4, thereby achieving the purpose of clamping and loosening the drill bit.
  • the front cap 2 is fixedly connected to the outer wall of the spiral ring 4, and the fixed connection may be an interference connection, or may be connected by ribs, projections, grooves, pits, holes, and snap-fit structures that can be engaged with each other.
  • the rear cap 8 and the clamping body 1 are provided with a detachable fixed connection of one end of the tapered hole 11.
  • the bearing ring self-locking mechanism includes a bearing ring 7 fixedly connected to the outer wall of the shoulder groove 13 of the clamping body 1, a plurality of bead frames 6 made of elastic material and a plurality of balls 5 (may be a bead frame and a ball), wherein the bearing ring 7 is provided with six recesses 70 on the surface, and the inner bottom surface of the recess 70 is inclined from the inside to the outside, as shown in FIG. Each side has a notch 71 on each side.
  • the bead frame 6 includes an opening 60, and the wings 61 are provided at the protrusions on both sides.
  • the bead frame 6 is just caught in the groove 70, and only the radial movement can be performed in each groove 70 without circumferential rotation. And, the bead frame 6 and the bearing ring 7 are restrained by the cooperation of the wing 61 and the notch 71 between the bead frame 6 and the bearing ring 7.
  • a steel ball 5 of the same diameter is placed in the hole 60 of the bead frame 6, so that the steel ball 5 can be freely rotated without being subjected to pressure.
  • the working principle of the self-locking mechanism in the hand-tight drilling chuck of the present invention is as follows:
  • the hand-tight drill chuck of the present invention fixes the bearing ring 7 to the outer side surface of the shoulder groove 13 of the clamp body 1.
  • a bead frame 6 which is radially displaced relative to the bearing ring and which is not rotatable in the circumferential direction is placed, and a steel ball is placed in the opening hole 60 of the bead frame 6.
  • rotating the front cap 2 drives the screw ring 4 to rotate, and further drives the jaws 3 to move.
  • the steel ball 5 can freely rotate in the hole 60 of the bead frame 6, the steel ball 5 is used as a bearing. , the screw 4 can be easily rotated, as shown in Figure 1.
  • the screw ring 4 When the jaws 3 are subjected to the resistance, the screw ring 4 is pushed to move in the opposite direction, so that the screw ring 4 can be pushed down to press the steel ball 5 . Since the inner bottom surface of the recess 70 is inclined from the inside to the outside, During the downward movement, the spiral ring 4 can press the steel ball 5 to move to a position where the gap is large (from the inside to the outside:), as shown in Fig. 4, thereby driving the bead frame 6 to perform radial displacement.
  • the bead frame 6 After moving a certain distance, the bead frame 6 is constrained by the bearing ring 7, and the hole 60 begins to elastically deform, and the steel ball 5 is tightly hugged, forcing the steel ball 5 to not rotate when subjected to vibration, and the spiral ring 4 cannot be rotated. Rotate in the direction of loosening to achieve the purpose of self-locking. When loosening, simply rotate the front cap 2 in the opposite direction to drive the screw ring 4 in the opposite direction to drive the jaws 3 to move and release the drill bit.
  • another embodiment of the bearing ring self-locking mechanism of the present invention includes a bearing ring 7, a bead frame 6 and a steel ball 5, wherein three convex grooves 72 are provided on the bearing ring 7, in the convex groove 7
  • the two ends of the groove 2 are provided with a groove 70, and the inner bottom surface of the groove 70 is inclined from the inside to the outside.
  • the steel ball 5 is subjected to the force of the screw ring 4, it can move from the inside to the outside, as shown in FIG.
  • two steel ball holes 60 are provided in the bead frame 6, as shown in FIG.
  • the rest of the structure and working principle in this embodiment are the same as those in the above embodiment, and therefore will not be described separately.
  • the change of the bearing component in the middle has the function of bearing and also has the self-locking function, that is, the self-locking mechanism relies on the deformation of the hole 60 in the bead frame 6 to prevent the steel ball 5 from rotating when it is vibrated, thereby achieving the purpose of self-locking.

Landscapes

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

Abstract

A bearing collar self-locking mechanism for a hand fastening drill chuck includes a clamping body, a couple of gripping jaws, a nut, a front cap, a back cap and a bearing collar self-locking mechanism. The outer wall of the net is fixedly attached to the front cap. The nut meshes with the gripping jaws by its thread. The gripping jaws are clamped in the holes of the clamping body. A self-locking mechanism is provided in the periphery of the clamping body and the end of the nut. The self-locking mechanism includes a bearing collar, at least one ball holder and a number of balls installed in the ball holder. The bearing collar is fixedly attached to the outer surface of the body of the hand fastening drill chuck. The bearing collar is provided with at least one groove on its end face, and the inner bottom surface of the groove leans from the inside to the outside, so the inner side is higher than the outer side. The ball holder is made of elastic material, and it can be installed in the groove of the bearing collar and move radially with respect to the radius of the bearing collar. The ball holder is provided with holes to install the balls. The manual claming drill chuck can make the conventional bearing component have the self-locking function in addition to the bearing functionby changing its structure. The bearing component is convenient to install, has good self-locking effect, economical, has compact structure, and is easy to operate.

Description

手緊钻夹头及其轴^^环自锁机构 技术领域  Hand tightening chuck and its shaft ^^ ring self-locking mechanism
本发明涉及一种手紧钻夹头及该手紧钻夹头内的轴承环自锁机构。 背景技术  The invention relates to a hand tight drilling chuck and a bearing ring self-locking mechanism in the hand tight drilling chuck. Background technique
手紧钻夹头是一种日常生活中的常用工具， 主要是在安装或固定物品、 建筑、 装修时用于打眼、 钻洞等。 现有的手紧钻夹头包括有夹紧本体、 前帽、 三个夹爪、 螺环、 轴承部件、 后帽及挡盖， 其中夹紧本体上设有三个用于容 纳导向夹爪的柱孔， 其工作原理是利用前帽带动螺环旋转并驱动三个夹爪作 夹紧与松开动作， 实现夹紧与松开钻头的目的。 但是由于现有的手紧钻夹头 没有设置锁紧装置， 在使用过程中会因产生的强烈震动， 而容易使前端的钻 头松动， 进而影响打眼盾量， 严重时可能会折断钻头， 产生危险。 发明内容  Hand-tight drill chucks are a common tool used in daily life, mainly for eye-catching, drilling holes, etc. when installing or fixing items, building, and decoration. The existing hand drill chuck includes a clamping body, a front cap, three jaws, a screw ring, a bearing component, a rear cap and a cover, wherein the clamping body is provided with three column holes for receiving the guiding jaws The working principle is to use the front cap to drive the screw ring to rotate and drive the three jaws for clamping and loosening action, so as to achieve the purpose of clamping and loosening the drill bit. However, since the existing hand-tight drill chuck is not provided with a locking device, the front end of the drill head is easily loosened due to the strong vibration generated during use, thereby affecting the amount of the eye-catching shield, and in severe cases, the drill bit may be broken, posing a danger. Summary of the invention
本发明的目的在于提供一种手紧钻夹头的轴承环自锁机构， 利用该机构 后可以对手紧钻夹头进行自锁， 在使用过程中不易出现松动和折断的情形。  The object of the present invention is to provide a self-locking mechanism for a bearing ring of a hand-tight drill chuck, which can be self-locked by a collet chuck, and is less prone to loosening and breaking during use.
本发明的另一目的在于提供一种具有自锁机构的手紧钻夹头， 具有使用 时不会出现松动， 更加安全等优点。  Another object of the present invention is to provide a hand-tight drill chuck having a self-locking mechanism, which has the advantages of no looseness during use and safety.
本发明中手紧钻夹头的轴承环自锁机构包括有轴承环、 至少一个珠架及 安装在珠架上的滚珠， 其中：  The bearing ring self-locking mechanism of the hand-tight drill chuck of the present invention comprises a bearing ring, at least one bead frame and balls mounted on the bead frame, wherein:
所述轴承环与手紧钻夹头中夹紧本体的外侧面固定连接， 在其端面至少 设有一个凹槽， 且所述凹槽的内底面从里往外呈由高到低的倾斜状； 所述珠架由弹性材料制成， 可沿轴承环半径径向移动的安装在轴承环的 凹槽中， 该珠架上设有用于安装所述滚珠的孔。 The bearing ring is fixedly connected with the outer side of the clamping body in the hand drill chuck, at least at the end surface thereof a groove is provided, and the inner bottom surface of the groove is inclined from high to low from the inside to the outside; the bead frame is made of an elastic material and is radially movable along the radius of the bearing ring and mounted on the bearing ring. In the recess, the bead frame is provided with a hole for mounting the ball.
所述珠架包括两个或两个以上用于安装所述滚珠的孔。  The bead frame includes two or more holes for mounting the balls.
所述轴承环与钻夹头本体外侧面的固定连接是通过能相互扣合的凸棱、 凸起、 凹槽连接或过盈连接。  The fixed connection of the bearing ring to the outer side of the drill chuck is by a rib, a projection, a groove connection or an interference connection that can be engaged with each other.
所述滚珠为钢球， 在未受力时能自由转动地安装在珠架的孔中。  The balls are steel balls that are rotatably mounted in the holes of the bead frame when unstressed.
所述珠架的孔为开口孔。  The hole of the bead frame is an open hole.
所述珠架在两侧凸起处设有翼， 用于与轴承环径向定位。 .  The bead frame is provided with wings on both sides of the projection for radial positioning with the bearing ring. .
本发明中的手紧钻夹头包括有夹紧本体、 多个夹爪、 螺环、 前帽、 后帽 及自锁机构， 所述螺环的外壁与前帽固定连接， 所述螺环通过螺纹与所述夹 爪啮合， 所述夹爪插置在夹紧本体的柱孔内， 所述自锁机构设在所述夹紧本 体的外周及螺环的端部， 所述自锁机构包括有轴承环、 至少一个珠架及安装 在珠架上的滚珠， 所述轴承环与手紧钻夹头中本体的外侧面固定连接， 在其 端面至少设有一个凹槽， 且所述凹槽的内底面从里往外呈由高到低的倾斜状； 所述珠架由弹性材料制成， 可沿轴承环半径径向移动的安装在轴承环的凹槽 中， 该珠架上设有用于安装所述滚珠的孔。  The hand drill chuck of the present invention comprises a clamping body, a plurality of jaws, a screw ring, a front cap, a rear cap and a self-locking mechanism, the outer wall of the screw ring is fixedly connected with the front cap, and the screw ring is threaded Engaging with the clamping jaw, the clamping jaw is inserted into the column hole of the clamping body, the self-locking mechanism is disposed at an outer circumference of the clamping body and an end of the spiral ring, and the self-locking mechanism includes a bearing ring, at least one bead frame and a ball mounted on the bead frame, the bearing ring being fixedly connected to an outer side surface of the body of the hand drill chuck, at least one groove is provided at an end surface thereof, and the inside of the groove The bottom surface is inclined from high to low from the inside to the outside; the bead frame is made of an elastic material and is radially movable along a radius of the bearing ring and is mounted in a groove of the bearing ring, and the bead frame is provided for mounting The hole of the ball.
所述夹紧本体呈一中空的圆柱体， 在该圆柱体外壁中部设有一轴肩槽， 所述螺环、 自锁机构设在该轴肩槽内。  The clamping body has a hollow cylinder, and a shoulder groove is disposed in a middle portion of the outer wall of the cylinder, and the screw ring and the self-locking mechanism are disposed in the shoulder groove.
本发明中的自锁机构用于替代现有手紧钻夹头中的轴承机构， 不仅可以 实现现有手紧钻夹头的功能， 而且通过自锁机构的设置， 可以达到自锁目的 的， 防止夹紧钻头在使用过程中因震动而松开。 本发明中的手紧夹钻头通过对原来轴承部件的改进， 即可只改变原有轴 承部件中两个零件的形状就能达到自锁的目的， 且具有安装方便， 自锁敢果 好， 经济实用， 结构紧凑， 操作简单等优点。 附图说明 The self-locking mechanism of the invention is used for replacing the bearing mechanism in the existing hand-tight drill chuck, and can not only realize the function of the existing hand-tight drill chuck, but also can achieve the purpose of self-locking by the setting of the self-locking mechanism, preventing the clip The compact bit is loosened by vibration during use. The hand-clamping bit of the invention can achieve self-locking purpose by merely changing the shape of the two parts in the original bearing component by improving the original bearing component, and has the advantages of convenient installation, self-locking and good results, economical and practical. , compact structure, simple operation and so on. DRAWINGS
图 1是本发明中紧钻夹头的剖视示意图；  Figure 1 is a schematic cross-sectional view of the drill collar of the present invention;
图 2是本发明中手紧钻夹头的立体分解示意图；  2 is a perspective exploded view of the hand-tight drill chuck of the present invention;
图 3是本发明中自锁机构的立体分解示意图；  3 is a perspective exploded view of the self-locking mechanism of the present invention;
图 4是本发明中自锁机构的工作原理图；  Figure 4 is a working principle diagram of the self-locking mechanism of the present invention;
图 5是本发明中自锁机构另一实施例的立体分解示意图。 具体实施方式  Fig. 5 is a perspective exploded view showing another embodiment of the self-locking mechanism of the present invention. detailed description
下面将结合附图对本发明中的具体实施作进一步的详细说明。  The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.
如图 1和图 2所示， 本发明中的手紧钻夹头包括有夹紧本体 1、三个夹爪 As shown in FIG. 1 and FIG. 2, the hand drill chuck of the present invention includes a clamping body 1 and three jaws.
3、 螺环 4、 前帽 2、 后帽 8及轴承环自锁机构。 其中： 3, screw ring 4, front cap 2, rear cap 8 and bearing ring self-locking mechanism. among them:
夹紧本体 1 大体为一中空的圆柱体， 在圆柱体的一端设成用于与驱动轴 联接的螺孔 11或锥孔； 圆柱体中部的外侧壁上设有用于容纳轴承环自锁机构 和螺环 4的轴肩槽 13 , 在该轴肩槽 13处设有三个呈轴对称分布的柱孔 12， 该柱孔 12与回转中心倾斜， 如图 1所示。  The clamping body 1 is substantially a hollow cylinder, and is provided at one end of the cylinder as a screw hole 11 or a taper hole for coupling with the driving shaft; the outer side wall of the middle portion of the cylinder is provided with a self-locking mechanism for accommodating the bearing ring and The shoulder groove 13 of the spiral ring 4 is provided with three axially symmetric column holes 12 at the shoulder groove 13, which are inclined with respect to the center of rotation, as shown in FIG.
三个夹爪 3分别插置在三个柱孔 12内， 每个夹爪 3都包含有螺牙 31。 螺环 4 包括有可组装成圆环的两部分（也可以是便于组装的三部分或四 部分， 也可以成一整体）， 在組装时直接对扣在夹紧本体 1的轴肩槽 13处， 组装后， 螺环 4的螺纹 40与夹爪 3的螺牙 31啮合， 即在旋转螺环 4的同时 可以带动三个夹爪 3移动， 实现夹紧、 松开钻头的目的。 Three jaws 3 are respectively inserted in the three column holes 12, and each of the jaws 3 includes a thread 31. The spiral ring 4 includes two parts that can be assembled into a circular ring (may also be three or four parts that are easy to assemble, or can be integrated), and is directly buckled at the shoulder groove 13 of the clamping body 1 during assembly. , After assembly, the thread 40 of the screw ring 4 meshes with the thread 31 of the jaw 3, that is, the three jaws 3 can be moved while rotating the screw ring 4, thereby achieving the purpose of clamping and loosening the drill bit.
前帽 2与螺环 4的外壁固定连接， 该固定连接可以是过盈连接， 也可以 是通过能相互扣合的凸棱、 凸起、 凹槽、 坑、 孔及卡挂结构等连接。  The front cap 2 is fixedly connected to the outer wall of the spiral ring 4, and the fixed connection may be an interference connection, or may be connected by ribs, projections, grooves, pits, holes, and snap-fit structures that can be engaged with each other.
后帽 8与夹紧本体 1设置锥孔 11的一端可拆卸的固定联接。  The rear cap 8 and the clamping body 1 are provided with a detachable fixed connection of one end of the tapered hole 11.
如图 2和图 3所示， 轴承环自锁机构包括有一固定连接在夹紧本体 1轴 肩槽 13外壁上的轴承环 7 , 多个由弹性材料制成的珠架 6及多个滚珠 5 (可 以是一个珠架和一个滚珠）， 其中轴承环 7在表面上设有六个凹槽 70, 且凹槽 70的内底面从里往外呈倾斜状， 如图 4所示，在凹槽 70的两侧各设有一个缺 口 71。 珠架 6包括有一开口孔 60, 在两侧凸起处设有翼 61, 珠架 6刚好卡在 凹槽 70 内， 在每个凹槽 70 内只能作径向移动而不能作周向转动， 并且在珠 架 6与轴承环 7之间利用翼 61与缺口 71的配合， 对珠架 6和轴承环 7进行 限位。 在珠架 6的孔 60中装入直径大小一样的钢球 5 , 使钢球 5在没有受到 压力时可以自由转动。  As shown in FIG. 2 and FIG. 3, the bearing ring self-locking mechanism includes a bearing ring 7 fixedly connected to the outer wall of the shoulder groove 13 of the clamping body 1, a plurality of bead frames 6 made of elastic material and a plurality of balls 5 (may be a bead frame and a ball), wherein the bearing ring 7 is provided with six recesses 70 on the surface, and the inner bottom surface of the recess 70 is inclined from the inside to the outside, as shown in FIG. Each side has a notch 71 on each side. The bead frame 6 includes an opening 60, and the wings 61 are provided at the protrusions on both sides. The bead frame 6 is just caught in the groove 70, and only the radial movement can be performed in each groove 70 without circumferential rotation. And, the bead frame 6 and the bearing ring 7 are restrained by the cooperation of the wing 61 and the notch 71 between the bead frame 6 and the bearing ring 7. A steel ball 5 of the same diameter is placed in the hole 60 of the bead frame 6, so that the steel ball 5 can be freely rotated without being subjected to pressure.
本发明手紧钻夹头中自锁机构的工作原理如下：  The working principle of the self-locking mechanism in the hand-tight drilling chuck of the present invention is as follows:
本发明中的手紧钻夹头是将轴承环 7固装在夹紧本体 1轴肩槽 13的外侧 面。 在轴承环 7的凹槽 70处放皇可相对轴承环作径向位移、 周向不能转动的 珠架 6, 在珠架 6的开口孔 60中放置钢球。 当夹紧钻头时， 转动前帽 2带动 螺环 4旋转， 并进一步驱动夹爪 3移动， 此时由于钢球 5可以在珠架 6的孔 60 自由转动， 因此钢球 5被当作轴承使用， 可以使螺环 4轻松地转动， 如图 1所示。 当夹爪 3受到阻力作用时， 会推动螺环 4向相反的方向移动， 从而可 推动螺环 4移下来压紧钢球 5。 由于凹槽 70的内底面由里往外呈倾斜状， 而 螺环 4在下移过程中可压迫钢球 5向间隙大的位置移动 （由里向外：)， 如图 4 所示， 从而带动珠架 6作径向位移。 移动一定距离后， 珠架 6由于受到轴承 环 7的约束， 其孔 60开始弹性变形， 将钢球 5紧紧抱住， 迫使钢球 5在受到 震动时也不能自转， 螺环 4也就不能向松开的方向转动， 从而达到自锁的目 的。 在松开时时， 只需用力反方向转动前帽 2, 即可驱动螺环 4反方向转动， 从而驱动夹爪 3移动， 松开钻头。 The hand-tight drill chuck of the present invention fixes the bearing ring 7 to the outer side surface of the shoulder groove 13 of the clamp body 1. At the groove 70 of the bearing ring 7, a bead frame 6 which is radially displaced relative to the bearing ring and which is not rotatable in the circumferential direction is placed, and a steel ball is placed in the opening hole 60 of the bead frame 6. When the drill bit is clamped, rotating the front cap 2 drives the screw ring 4 to rotate, and further drives the jaws 3 to move. At this time, since the steel ball 5 can freely rotate in the hole 60 of the bead frame 6, the steel ball 5 is used as a bearing. , the screw 4 can be easily rotated, as shown in Figure 1. When the jaws 3 are subjected to the resistance, the screw ring 4 is pushed to move in the opposite direction, so that the screw ring 4 can be pushed down to press the steel ball 5 . Since the inner bottom surface of the recess 70 is inclined from the inside to the outside, During the downward movement, the spiral ring 4 can press the steel ball 5 to move to a position where the gap is large (from the inside to the outside:), as shown in Fig. 4, thereby driving the bead frame 6 to perform radial displacement. After moving a certain distance, the bead frame 6 is constrained by the bearing ring 7, and the hole 60 begins to elastically deform, and the steel ball 5 is tightly hugged, forcing the steel ball 5 to not rotate when subjected to vibration, and the spiral ring 4 cannot be rotated. Rotate in the direction of loosening to achieve the purpose of self-locking. When loosening, simply rotate the front cap 2 in the opposite direction to drive the screw ring 4 in the opposite direction to drive the jaws 3 to move and release the drill bit.
如图 5所示，本发明中轴承环自锁机构的另一实施例包括有轴承环 7、珠 架 6及钢球 5 , 其中在轴承环 7上设有三个凸凹槽 72, 在凸凹槽 72的两端设 有凹槽 70， 凹槽 70的内底面从里往外呈倾斜状。 当钢球 5在受到螺环 4的作 用力时可由里向外移动， 如图 4所示。 与凹槽 70相对应， 在珠架 6上设有二 个钢球孔 60, 如图 5所示。 本实施例中的其余结构及工作原理与上述实施例 中的相同， 因此不再另行描述。 中轴承部件的改变， 使其具有轴承功能的同时还具有自锁功能， 即自锁机构 依靠珠架 6中孔 60的变形来阻止钢球 5受到震动时产生自转， 从而达到自锁 的目的。 As shown in FIG. 5, another embodiment of the bearing ring self-locking mechanism of the present invention includes a bearing ring 7, a bead frame 6 and a steel ball 5, wherein three convex grooves 72 are provided on the bearing ring 7, in the convex groove 7 The two ends of the groove 2 are provided with a groove 70, and the inner bottom surface of the groove 70 is inclined from the inside to the outside. When the steel ball 5 is subjected to the force of the screw ring 4, it can move from the inside to the outside, as shown in FIG. Corresponding to the recess 70, two steel ball holes 60 are provided in the bead frame 6, as shown in FIG. The rest of the structure and working principle in this embodiment are the same as those in the above embodiment, and therefore will not be described separately. The change of the bearing component in the middle has the function of bearing and also has the self-locking function, that is, the self-locking mechanism relies on the deformation of the hole 60 in the bead frame 6 to prevent the steel ball 5 from rotating when it is vibrated, thereby achieving the purpose of self-locking.

Claims

权利要求书 Claim
1、 一种手紧钻夹头的轴承环自锁机构， 包括有： 轴承环（7)、 至少一个 珠架（ 6 )及安装在珠架（ 6 )上的滚珠 ( 5 ), 其特征在于： A self-locking mechanism for a bearing ring of a hand-tight drill chuck, comprising: a bearing ring (7), at least one bead frame (6) and balls (5) mounted on the bead frame (6), characterized in that:
所述轴承环（7)与手紧钻夹头中本体 (1)的外侧面固定连接， 在其端 面至少设有一个凹槽（70), 且所述凹槽（70)的内底面从里往外呈由高到低 的倾斜状；  The bearing ring (7) is fixedly connected to the outer side surface of the body (1) of the hand drill chuck, and at least one groove (70) is provided on the end surface thereof, and the inner bottom surface of the groove (70) is from the inside out. Slanted from high to low;
所述珠架（6) 由弹性材料制成， 可沿轴承环（7)半径径向移动的安装 在轴承环（7)的凹槽（70) 中， 该珠架（6)上设有用于安装所述滚珠 (5) 的孔（60)。  The bead frame (6) is made of an elastic material and is mounted in a groove (70) of the bearing ring (7) radially movable along a radius of the bearing ring (7), the bead frame (6) being provided for Install the hole (60) of the ball (5).
2、根据权利要求 1中所述的手紧钻夹头的轴承环自锁机构，其特征在于： 所述珠架（6) 包括两个或两个以上用于安装所述滚珠 (5)的孔（60)。  2. A bearing ring self-locking mechanism for a hand-tight drill chuck according to claim 1, wherein: said bead frame (6) comprises two or more holes for mounting said balls (5) (60).
3、 根据权利要求 1或 1中所述的手紧钻夹头的轴承环自锁机构， 其特征 在于： 所述轴承环（7)与钻夹头本体 (1)外侧面的固定连接是通过能相互 扣合的凸棱、 凸起、 凹槽连接或过盈连接。  3. A bearing ring self-locking mechanism for a hand-tight drill chuck according to claim 1 or 1, characterized in that: the fixed connection of the bearing ring (7) to the outer side of the drill chuck body (1) is Intertwined ribs, projections, groove connections or interference connections.
4、 根据权利要求 1或 2中所述的手紧钻夹头的轴承环自锁机构， 其特征 在于： 所述滚珠 (5)为钢球， 在未受力时能自由转动地安装在珠架（6)的 孔 (60) 中。  4. The bearing ring self-locking mechanism of the hand-tight drill chuck according to claim 1 or 2, wherein: the ball (5) is a steel ball, and is rotatably mounted on the bead frame when unstressed. (6) in the hole (60).
5、 根据权利要求 1或 1中所述的手紧钻夹头的轴承环自锁机构， 其特征 在于： 所述珠架（6)的孔（60)为开口孔。  5. A bearing ring self-locking mechanism for a hand-tight drill chuck according to claim 1 or 1, characterized in that the hole (60) of the bead frame (6) is an open hole.
6、 根据权利要求 1或 1中所述的手緊钻夹头的轴承环自锁机构， 其特征 在于： 所述珠架（6)在两侧凸起处设有翼（61), 用于与轴承环（7)径向定 位。 6. The bearing ring self-locking mechanism of the hand-tight drill chuck according to claim 1 or 1, wherein: the bead frame (6) is provided with wings (61) at both side protrusions for Bearing ring (7) radial setting Bit.
Ί、 一种手紧钻夹头， 包括有夹紧本体（1)、 多个夹爪（3)、 螺环（4)、 前帽 （2)、 后帽 （8), 所述螺环（4) 的外壁与前帽 （2) 固定连接， 所述螺 环（ 4 )通过螺纹与所述夹爪（ 3 )啮合， 所述夹爪（ 3 )插置在夹紧本体 ( 1 ) 的柱孔 （12) 内， 其特征在于： 还包括有自锁机构， 该自锁机构设在所述夹 紧本体 (1) 的外周、 及螺环（4)的端部， 所述自锁机构包括有轴承环（7)、 至少一个珠架（ 6 )及安装在珠架（ 6 )上的滚珠 ( 5 ), 所述轴承环（ 7 )与手 紧钻夹头中本体 (1) 的外侧面固定连接， 在其端面至少设有一个凹槽（70), 且所述凹槽（70)的内底面从里往外呈由高到低的倾斜状； 所述珠架（6) 由 弹性材料制成， 可沿轴承环 （7)半径径向移动的安装在轴承环 （7) 的^槽 (70) 中， 该珠架（ 6 )上设有用于安装所述滚珠 ( 5 ) 的孔（ 60 )。 Ί a hand-tight drill chuck comprising a clamping body (1), a plurality of jaws (3), a screw ring (4), a front cap (2), a rear cap (8), the screw ring (4) The outer wall is fixedly connected to the front cap (2), the screw ring (4) is meshed with the jaw (3), and the jaw (3) is inserted into the column hole of the clamping body (1) (12) characterized in that: further comprising: a self-locking mechanism, the self-locking mechanism is disposed at an outer circumference of the clamping body (1), and an end of the spiral ring (4), wherein the self-locking mechanism includes a bearing ring (7), at least one bead frame (6) and a ball (5) mounted on the bead frame (6), the bearing ring (7) being fixedly connected to the outer side of the body (1) of the hand drill chuck At least one groove (70) is provided on the end surface thereof, and the inner bottom surface of the groove (70) is inclined from high to low from the inside to the outside; the bead frame (6) is made of an elastic material. Mounted in a slot (70) of the bearing ring (7) radially along the radius of the bearing ring (7), the bead frame (6) is provided with a hole for mounting the ball (5) ( 60 ) .
8、根据权利要求 7中所述的手紧钻夹头，其特征在于：所述夹紧本体（ 1 ) 呈一中空的圆柱体， 在该圆柱体外壁中部设有一轴肩槽（13)， 所述螺环（4)、 自锁机构设在该轴肩槽（ 13 ) 内。  The hand-tight drill chuck according to claim 7, wherein the clamping body (1) has a hollow cylinder, and a shoulder groove (13) is disposed in a middle portion of the outer wall of the cylinder. The spiral ring (4) and the self-locking mechanism are disposed in the shoulder groove (13).
9、 根据权利要求 7 中所述的手紧钻夹头， 其特征在于： 所述珠架（6) 的孔（60)为开口孔。  9. A hand drill chuck according to claim 7, wherein: the hole (60) of the bead frame (6) is an open hole.
PCT/CN2006/001637 2006-07-11 2006-07-11 Hand fastening drill chuck and bearing collar self-locking mechanism for the same WO2008009170A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001637 WO2008009170A1 (en) 2006-07-11 2006-07-11 Hand fastening drill chuck and bearing collar self-locking mechanism for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/001637 WO2008009170A1 (en) 2006-07-11 2006-07-11 Hand fastening drill chuck and bearing collar self-locking mechanism for the same

Publications (1)

Publication Number Publication Date
WO2008009170A1 true WO2008009170A1 (en) 2008-01-24

Family

ID=38956515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001637 WO2008009170A1 (en) 2006-07-11 2006-07-11 Hand fastening drill chuck and bearing collar self-locking mechanism for the same

Country Status (1)

Country Link
WO (1) WO2008009170A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772219A3 (en) * 2005-10-10 2009-06-17 Shanxi Huifeng Machine Industrial Co., Ltd. A shock-resistant drill chunk of hand tightening type
CN103143755A (en) * 2013-03-18 2013-06-12 山西惠丰机械工业有限公司 Sliding friction self-locking drill chuck
CN103212737A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Connecting structure of shaft base and integrated guide base of self-clinching drill chuck
CN103212740A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Shaft base of self-clinching drill chuck
CN103212738A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Integrated guide assembly of self-clinching drill chuck
CN106041165A (en) * 2016-08-05 2016-10-26 无锡市天龙装饰材料有限公司 Drilling machine for hardware fitting machining
CN109333049A (en) * 2018-11-13 2019-02-15 嘉兴鼎泰自动化科技有限公司 A kind of electric hand drill drill chuck automatic assembling apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2680390Y (en) * 2004-02-05 2005-02-23 山西惠丰机械有限公司 Hand tightened self-locking drill chuck
CN2701558Y (en) * 2004-04-29 2005-05-25 三鸥集团有限公司 Improved hand tighten drill chuck
CN1623710A (en) * 2003-12-04 2005-06-08 百得有限公司 Chuck
CN2726771Y (en) * 2004-06-15 2005-09-21 山西惠丰机械有限公司 Fixation fastening chuck

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1623710A (en) * 2003-12-04 2005-06-08 百得有限公司 Chuck
CN2680390Y (en) * 2004-02-05 2005-02-23 山西惠丰机械有限公司 Hand tightened self-locking drill chuck
CN2701558Y (en) * 2004-04-29 2005-05-25 三鸥集团有限公司 Improved hand tighten drill chuck
CN2726771Y (en) * 2004-06-15 2005-09-21 山西惠丰机械有限公司 Fixation fastening chuck

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772219A3 (en) * 2005-10-10 2009-06-17 Shanxi Huifeng Machine Industrial Co., Ltd. A shock-resistant drill chunk of hand tightening type
CN103143755A (en) * 2013-03-18 2013-06-12 山西惠丰机械工业有限公司 Sliding friction self-locking drill chuck
CN103212737A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Connecting structure of shaft base and integrated guide base of self-clinching drill chuck
CN103212740A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Shaft base of self-clinching drill chuck
CN103212738A (en) * 2013-04-18 2013-07-24 玉环胜友工具有限公司 Integrated guide assembly of self-clinching drill chuck
CN103212737B (en) * 2013-04-18 2016-08-31 玉环胜友工具有限公司 Keyless drill chuck axle bed and the attachment structure of integrated guide bearing
CN106041165A (en) * 2016-08-05 2016-10-26 无锡市天龙装饰材料有限公司 Drilling machine for hardware fitting machining
CN106041165B (en) * 2016-08-05 2017-12-22 无锡市天龙装饰材料有限公司 A kind of Hardware fitting processing drilling machine
CN109333049A (en) * 2018-11-13 2019-02-15 嘉兴鼎泰自动化科技有限公司 A kind of electric hand drill drill chuck automatic assembling apparatus
CN109333049B (en) * 2018-11-13 2024-04-05 嘉兴鼎泰自动化科技有限公司 Automatic assembly device for drill chuck of electric hand drill

Similar Documents

Publication Publication Date Title
WO2008009170A1 (en) Hand fastening drill chuck and bearing collar self-locking mechanism for the same
US7296803B2 (en) Chuck
JP5693796B2 (en) Hand-held machine tool
JP2006326831A (en) Clamp structure for tool with handle
WO2007118349A1 (en) Manually fastened drill chuck
CN100434212C (en) No-key drilling clamp head with impact-proof loosing machine
EP1767296B1 (en) Locking drill chuck
WO1997031740A2 (en) Counter centrifugal chuck and mounting systems
WO2008092300A1 (en) A locking drill chuck
CN100522429C (en) Tool-holding chuck, e.g. for drill, has outer ring that can move relative to rotary component through limited angle with teeth and spring to provide lock
CN101912982B (en) Keyless drill chuck
JP5044186B2 (en) Chuck with grip stop mechanism
WO2008144965A1 (en) A new self-locking hand tightened drill chuck
WO2008046248A1 (en) A manual locking chuck with friction self-locking mechanism for drill
EP1779948A1 (en) A manual self-locking drill chuck
EP1347854A2 (en) Chuck with spring leg dust cover
WO2008009171A1 (en) Keyless drill chuck having mechanism against loosening by impact
JP2007125688A5 (en)
WO2008064523A1 (en) a DRILL CHUCK HAVING AN ANTI-LOOSENING FUNCTION
WO2018082717A1 (en) Power tool and method for operation thereof
CN112203788B (en) Chuck with automatic jaw adjustment
CN101229592A (en) Drill chuck with selflock function
US11511354B2 (en) Locking chuck with anti-vibration feature
CN201128007Y (en) Drill chuck with self-locking function
JP4428365B2 (en) Screw tightening device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06753132

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

122 Ep: pct application non-entry in european phase

Ref document number: 06753132

Country of ref document: EP

Kind code of ref document: A1