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WO2013029281A1 - Quickly assembled and disassembled drill chunk - Google Patents

Quickly assembled and disassembled drill chunk Download PDF

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Publication number
WO2013029281A1
WO2013029281A1 PCT/CN2011/079342 CN2011079342W WO2013029281A1 WO 2013029281 A1 WO2013029281 A1 WO 2013029281A1 CN 2011079342 W CN2011079342 W CN 2011079342W WO 2013029281 A1 WO2013029281 A1 WO 2013029281A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor shaft
drill
limit
ring
sleeve
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.)
Ceased
Application number
PCT/CN2011/079342
Other languages
French (fr)
Chinese (zh)
Inventor
周文华
赵强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sanou Machinery Co Ltd
Original Assignee
Zhejiang Sanou Machinery Co Ltd
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 Zhejiang Sanou Machinery Co Ltd filed Critical Zhejiang Sanou Machinery Co Ltd
Publication of WO2013029281A1 publication Critical patent/WO2013029281A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B23B31/1238—Jaws movement actuated by a nut with conical screw-thread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • 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 connecting hole is generally a threaded hole.
  • the drill chuck When the drill chuck is mounted on or removed from a machine tool or a pistol drill, it needs to be rotated one turn or another, which is time consuming and troublesome. Especially for pistol drills, this connection structure seriously affects the ease of use of the pistol drill. Summary of the invention
  • the device for controlling the limiting component to cooperate with the motor shaft limit position and the disengaged engagement state is provided with the following structure: a slidable ring for mounting the limiting component, the sliding direction of which is perpendicular to the motor shaft hole; a button that can be pressed to manipulate the ring motion to disengage the limiting member from the motor shaft from a limit fit state; support the ring and match the limit member with the motor shaft limit after the button is released Spring parts.
  • a rear sleeve is disposed at a rear portion of the drill chuck, the ring is located in the rear sleeve, a support plate of the ring is disposed in the rear sleeve, the spring member is located in the rear sleeve, and the button is exposed to the back sleeve
  • the surface of the ring and the rear sleeve are provided with a ring sliding guide surface.
  • the first positioning groove is in a state in which the limiting component is in a state of being engaged with the motor shaft.
  • the control sleeve positioning groove at the time, the second positioning groove is a control sleeve positioning groove when the limiting component is in a state of being out of the limit position of the motor shaft.
  • the limiting member includes steel balls at both ends and a top column in the middle.
  • the drill body is radially disposed with three of the limiting holes along the circumferential direction thereof, and the control sleeve is provided with three spring pieces respectively located between the two limiting holes, and the external surface of the drill corresponds to the spring piece At the plane, the first positioning groove and the second positioning groove are disposed on the plane.
  • the ring-shaped mounting body is caught in the groove of the inner wall of the control sleeve, and the ring-shaped mounting body has an inwardly facing flange, and the flange is pressed by the positioning platen.
  • the end of the key adjacent to the aperture of the motor shaft bore is a bevel.
  • the drill chuck provided by the utility model can be quickly connected and disassembled with a machine tool or a pistol drill equipped with a matching motor shaft, and the torque transmission structure is more reliable, and the drill clamp can be improved.
  • the cutting force of the head, when connected to the motor shaft, makes the operation feel better and the operation is smoother, avoiding unnecessary wear.
  • Figure 1 is a partial cross-sectional view showing a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line C-C of Figure 1 when the button is released.
  • Figure 4 is an exploded view of Embodiment 1.
  • Figure 5 is a cross-sectional view of the motor shaft of the present invention.
  • Figure 6 is a cross-sectional view of the drill body of Embodiment 1.
  • Fig. 7 is a plan view of the drill body of the first embodiment.
  • Fig. 8 is a schematic view showing the appearance of a second embodiment of the present invention.
  • Fig. 9 is a partial cross-sectional view taken along line A-A of Fig. 8 when the motor shaft has not been connected to the key of the present invention.
  • Figure 10 is a partial cross-sectional view of the A-A of Figure 8 when the motor shaft is coupled to the key of the present invention.
  • Figure 11 is a partial cross-sectional view of the B-B of Figure 8 when the motor shaft has not been inserted into the motor shaft hole.
  • Figure 12 is a cross-sectional view of the drill body of Embodiment 2.
  • Fig. 13 is a plan view of the drill body of the second embodiment.
  • Figure 14 is an exploded view of the main structure of Embodiment 2. detailed description
  • the utility model comprises a drill body 1 , and an axial motor shaft hole 11 is extended from a rear end of the drill body to the drill body, and a limiting hole 13 is further arranged at a rear portion of the drill body, and the limiting hole is provided with a motor shaft 3
  • the movable limiting member 8 is further provided with means for controlling the limiting member 8 to be engaged with and disengaged from the motor shaft 3, wherein the motor shaft hole 11 is in the middle of the shaft
  • a ring 12 for receiving the torque output of the motor shaft is provided in the circumferential direction of the motor shaft hole, and the direction of the tail of the drill chuck to the head is downward, and the key 12 is located below the limiting hole 13.
  • the limiting member 8 can be in the form of a pin.
  • the device for controlling the limiting member to be engaged with the motor shaft limit and disengaging from the limit matching state is provided with the following structure: a slidable ring 5 on which the limiting member 8 is mounted, the sliding direction of which is perpendicular to the motor shaft Hole 11 ;
  • a button 4 that can be pressed to manipulate the movement of the ring 5 to disengage the limiting member from the motor shaft from the limit fit state, support the ring 5 and cause the limiting member 8 to be after the button 4 is released
  • the spring shaft 6 of the motor shaft is matched with the limit.
  • the button 4 may be a separate component from the ring 5 or may be attached to the ring 5 to form part of the ring 5.
  • the button 4 and the limiting member 8 are respectively located on two sides of the drill body 1.
  • the spring member 6 is a shape-symmetrical curved spring piece, and the curved spring piece and the limiting member are in the drill body.
  • the button 4 is a separate component from the ring 5, the ring 5 having an arcuate face that cooperates with the curved spring piece.
  • a rear sleeve 2 is further disposed at a rear portion of the drill chuck, the ring 5 is located in the rear sleeve 2, and the support sleeve 22 of the ring 5 is disposed in the rear sleeve, and the spring member 6 is located in the rear sleeve.
  • the button 4 exposes the back cover surface from the aperture 21 in the back cover.
  • the outer surface of the ring and the rear sleeve are provided with guide surfaces 51, 23 for ring sliding.
  • a limiting cover 7 of the ring 5 is disposed at a rear end of the rear sleeve, and a support step 24 of the limiting cover is disposed in the rear sleeve.
  • the collar 91 connected to the drill body is pressed against the limit cover 7 so as to be defined from the rear
  • the sleeve on the drill body defines a rear sleeve from the front portion, so that the rear sleeve cannot slide back and forth relative to the drill body, and the plane 14 on the drill body prevents the rear sleeve from rotating relative to the drill body.
  • the ring 5 is axially positioned by the limiting cover ⁇ and the support plate 22, and the end 15 of the key 12 adjacent to the aperture of the motor shaft bore is beveled.
  • the motor shaft may be an output shaft that is self-contained by the motor itself, or may be a shaft member that is connected to the motor that can output motor power to the drill chuck.
  • the motor shaft 3 includes a torque input portion 34 at one end and a groove 32 at the other end that cooperates with the key 12 for torque output, and a limit ring 33 is provided between the groove 32 and the torque input portion 34.
  • a limiting groove 31 that cooperates with the limiting member 8 is also provided in a portion of the motor shaft that is in the motor shaft hole 11.
  • the utility model comprises a drill body 210.
  • the rear end of the drill body extends into the drill body and is provided with an axial motor shaft hole 211.
  • the rear portion of the drill body is further provided with a limit hole 213, and the limit hole is provided with a motor shaft 230.
  • the limiting member includes a steel ball 261 at both ends and a top column 262 in the middle, so that the resistance when the motor shaft is withdrawn can be reduced.
  • the spring piece 241, the ring-shaped mounting body 240 of the spring piece is caught in the groove 221 of the inner wall of the control sleeve 220, and the ring-shaped mounting body 240 has an inward flange, which is pressed by the positioning platen 250;
  • the surface of the drill body is provided with a first positioning groove 215 and a second positioning groove 214 which are engaged with the spring piece along the axial direction thereof, and the first positioning groove 215 is in a state in which the limiting component is in a position matching with the motor shaft.
  • the control sleeve positioning groove is a control sleeve positioning groove when the limiting component is in a state of being out of the limit position of the motor shaft.
  • the drill body is radially provided with three of the limiting holes 213, and the control sleeve is provided with three spring pieces 241 respectively located between the two limiting holes, and the external surface of the drill corresponds to the
  • the spring piece 241 is planar, and the first positioning groove 215 and the second positioning groove 214 are disposed on the plane.
  • a hand-tight drill chuck is taken as an example
  • reference numeral 291 is a jacket for operating a drill chuck nut
  • reference numeral 292 is a jaw
  • reference numeral 251 is a collar of a fixed positioning pressure plate 250 connected to the control sleeve 220. .
  • the motor shaft 230 includes a torque input portion at one end and a slot 232 at the other end that cooperates with the key 212 for torque output with a stop ring between the slot 232 and the torque input portion.
  • a limiting groove 231 that cooperates with the limiting member is also provided in a portion of the motor shaft that is in the motor shaft hole 211.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

A quickly assembled and disassembled drill chunk comprises a drill body (1). A motor shaft hole (11) is extended from a rear end of the drill body to the interior of the drill body. A rear part of the drill body is further provided with a limit hole (13). A movable limit component (8) for a motor shaft (3) is disposed in the limit hole. The drill chunk is further provided with a device for controlling the limit component to be limit-fit with the motor shaft and to be released from a limit fitting state. A torsion transfer column that can be connected to the motor shaft is disposed in the motor shaft hole along an axial direction of the motor shaft hole. An upper end of the torsion transfer column is located below the limit hole. The drill chunk has a simple structure, provides reliable connection, and can be fast connected to and disassembled from the machine tool or gun drill with a fitting motor shaft. Moreover, the drill chunk can transfer the torsion reliably, so the cutting strength of the drill chunk is improved.

Description

说明书 一种装卸快捷的钻夹头 技术领域  Description: A quick and easy drill chuck for loading and unloading

本实用新型涉及一种钻夹头，尤其涉及一种安装在机械加工设备及电动工具 例如钻床、 电钻上的钻夹头。 背景技术  The utility model relates to a drill chuck, in particular to a drill chuck mounted on a machining device and a power tool such as a drill press and an electric drill. Background technique

现有技术中， 手紧钻夹头中设有钻体、 夹爪、 螺母、 可旋转的前套、 后套， 前套轴向被定位，三只夹爪分别设置在均布于钻体上的三个斜孔内， 螺母与夹爪 之间采用螺纹连接，前套直接或间接与螺母连接并通过带动螺母旋转从而带动夹 爪在斜孔内进出而使钻夹头夹紧或松脱钻具，钻体的后端面开设有与驱动轴连接 的连接孔， 钻夹头利用该连接孔与机床或手枪电钻连接。 目前， 所述连接孔一般 为螺纹孔，将钻夹头安装到机床或手枪电钻上或从其上拆除时， 需要一圈一圈地 旋， 操作费时又麻烦。尤其对于手枪电钻来说， 这种连接结构严重影响手枪电钻 的使用便利性。 发明内容  In the prior art, the hand drill chuck is provided with a drill body, a jaw, a nut, a rotatable front sleeve and a rear sleeve, and the front sleeve is axially positioned, and the three jaws are respectively disposed on the drill body. In the three inclined holes, the nut and the clamping jaw are screwed together, and the front sleeve is directly or indirectly connected with the nut and rotates by driving the nut to drive the clamping jaw into and out of the inclined hole to clamp or loosen the drilling chuck. The rear end surface of the drill body is provided with a connecting hole connected to the driving shaft, and the drill chuck is connected with the machine tool or the pistol drill. At present, the connecting hole is generally a threaded hole. When the drill chuck is mounted on or removed from a machine tool or a pistol drill, it needs to be rotated one turn or another, which is time consuming and troublesome. Especially for pistol drills, this connection structure seriously affects the ease of use of the pistol drill. Summary of the invention

本实用新型所要解决的技术问题是提供一种能实现与电机轴快速连接且连 接可靠、 结构简单的装卸快捷的钻夹头。 为此， 本实用新型采用以下技术方案： 它包括钻体， 自钻体的后端向钻体内延伸设有轴向的电机轴孔， 钻体的后部还设 有垂直于电机轴孔的限位孔， 限位孔中设有针对电机轴的可活动的限位部件， 所 述钻夹头还设有操控所述限位部件使其与电机轴限位配合和脱离限位配合状态 的装置，所述电机轴孔中沿电机轴孔的周向设有一圈用于接受电机轴输出扭力的 键，以钻夹头的尾部至头部的方向为向下的方向，所述键处于所述限位孔的下方。 在采用上述技术方案的基础上， 本实用新型还可采用以下进一步的技术方 案： The technical problem to be solved by the utility model is to provide a drill chuck which can realize quick connection with the motor shaft and has reliable connection and simple structure. To this end, the utility model adopts the following technical solutions: It comprises a drill body, and a rear end of the drill body extends into the drill body to provide an axial motor shaft hole, and a rear portion of the drill body is further provided with a limit perpendicular to the motor shaft hole. a position hole, a movable limit member for the motor shaft is provided, and the drill chuck is further provided with a device for controlling the limit member to cooperate with the motor shaft limit position and the limit engagement state. a ring is arranged in the motor shaft hole along the circumferential direction of the motor shaft hole for receiving the torque output of the motor shaft The key is in a downward direction from the tail to the head of the drill chuck, and the key is below the limit hole. Based on the above technical solutions, the present invention may also adopt the following further technical solutions:

所述操控所述限位部件使其与电机轴限位配合和脱离限位配合状态的装置 设有以下结构： 安装所述限位部件的可滑动的环， 其滑动方向垂直于电机轴孔； 可被按压而操纵所述环运动使所述限位部件与电机轴脱离限位配合状态的按钮； 支撑所述环并在所述按钮被释放后使所述限位部件与电机轴限位配合的弹簧件。  The device for controlling the limiting component to cooperate with the motor shaft limit position and the disengaged engagement state is provided with the following structure: a slidable ring for mounting the limiting component, the sliding direction of which is perpendicular to the motor shaft hole; a button that can be pressed to manipulate the ring motion to disengage the limiting member from the motor shaft from a limit fit state; support the ring and match the limit member with the motor shaft limit after the button is released Spring parts.

所述按钮与所述限位部件分别处于钻体的两侧，所述弹簧件为形状对称的弧 形弹簧片，所述弹簧片与所述限位部件处于钻体的同一侧， 所述环具有与弹簧片 配合的弧形面。  The button and the limiting member are respectively located at two sides of the drill body, the spring member is a shape-symmetrical curved spring piece, and the spring piece and the limiting member are on the same side of the drill body, the ring It has a curved surface that cooperates with the spring piece.

在钻夹头的后部设有后套，所述环处于后套内， 所述后套内设有所述环的支 撑板， 所述弹簧件处于后套内， 所述按钮暴露在后套的表面， 所述环的外表面和 所述后套内设有环滑动的导向面。  a rear sleeve is disposed at a rear portion of the drill chuck, the ring is located in the rear sleeve, a support plate of the ring is disposed in the rear sleeve, the spring member is located in the rear sleeve, and the button is exposed to the back sleeve The surface of the ring and the rear sleeve are provided with a ring sliding guide surface.

它在后套的后端设有所述环的限位盖板，所述后套内设有限位盖板的支撑台 阶。  It is provided with a limit cover plate of the ring at the rear end of the rear sleeve, and a support step of the limit cover plate is arranged in the rear sleeve.

在采用上述技术方案的基础上， 本实用新型还可采用以下进一步的技术方 案：  Based on the above technical solutions, the present invention may also adopt the following further technical solutions:

所述操控所述限位部件使其与电机轴限位配合和脱离限位配合状态的装置 设有以下结构： 在钻体的后部所设的可沿钻夹头轴向运动的控制套， 所述控制套 内壁设有控制限位部件运动的凸轮面，以使限位部件处于与电机轴限位配合和脱 离限位配合的状态，控制套内壁还设有定位控制套轴向位置的弹簧片， 所述钻体 的表面沿其轴向设有与弹簧片配合的第一定位凹槽和第二定位凹槽，所述第一定 位凹槽为限位部件处于与电机轴限位配合状态时的控制套定位槽，所述第二定位 凹槽为限位部件处于与电机轴脱离限位配合的状态时的控制套定位槽。  The device for controlling the limiting component to cooperate with the motor shaft limit position and the disengaged engagement state is provided with the following structure: a control sleeve disposed at the rear of the drill body and axially movable along the drill chuck, The inner wall of the control sleeve is provided with a cam surface for controlling the movement of the limiting member, so that the limiting member is in a state of being engaged with the motor shaft limit and disengaging the limit, and the inner wall of the control sleeve is further provided with a spring for positioning the axial position of the control sleeve. a first positioning groove and a second positioning groove that are matched with the spring piece, the first positioning groove is in a state in which the limiting component is in a state of being engaged with the motor shaft. The control sleeve positioning groove at the time, the second positioning groove is a control sleeve positioning groove when the limiting component is in a state of being out of the limit position of the motor shaft.

所述限位部件包括分别处于两端的钢珠以及处于中间的顶柱。 钻体沿其周向放射状地设有 3条所述限位孔，所述控制套设有 3个所述弹簧 片， 分别处在两两限位孔之间， 钻体外表面对应所述弹簧片处为平面， 并在所述 平面上设置所述第一定位凹槽和第二定位凹槽。 The limiting member includes steel balls at both ends and a top column in the middle. The drill body is radially disposed with three of the limiting holes along the circumferential direction thereof, and the control sleeve is provided with three spring pieces respectively located between the two limiting holes, and the external surface of the drill corresponds to the spring piece At the plane, the first positioning groove and the second positioning groove are disposed on the plane.

它具有所述弹簧片的圈状安装母体， 圈状安装母体卡在控制套内壁的槽中， 圈状安装母体具有向内的翻边， 所述翻边被定位压板压住。  It has a ring-shaped mounting body of the spring piece, the ring-shaped mounting body is caught in the groove of the inner wall of the control sleeve, and the ring-shaped mounting body has an inwardly facing flange, and the flange is pressed by the positioning platen.

所述键的靠近电机轴孔孔口的那一端为斜面。  The end of the key adjacent to the aperture of the motor shaft bore is a bevel.

由于采用本实用新型的上述技术方案，本实用新型所提供的钻夹头能与装有 配套电机轴的机床或手枪电钻实现快速连接和拆卸， 并且， 扭力传递结构更为可 靠， 能提高钻夹头的切削力量， 在与电机轴连接时， 操作手感更好， 操作也更顺 畅， 避免不必要的磨损。 附图说明  Due to the above technical solution of the present invention, the drill chuck provided by the utility model can be quickly connected and disassembled with a machine tool or a pistol drill equipped with a matching motor shaft, and the torque transmission structure is more reliable, and the drill clamp can be improved. The cutting force of the head, when connected to the motor shaft, makes the operation feel better and the operation is smoother, avoiding unnecessary wear. DRAWINGS

图 1为本实用新型实施例 1的局部剖视图。  Figure 1 is a partial cross-sectional view showing a first embodiment of the present invention.

图 2为当释放按钮时， 图 1的 C-C剖视图。  Figure 2 is a cross-sectional view taken along line C-C of Figure 1 when the button is released.

图 3为当按下按钮时， 图 1的 C-C剖视图。  Figure 3 is a cross-sectional view taken along line C-C of Figure 1 when the button is pressed.

图 4为实施例 1的爆炸图。  Figure 4 is an exploded view of Embodiment 1.

图 5为本实用新型中的电机轴的剖视图。  Figure 5 is a cross-sectional view of the motor shaft of the present invention.

图 6为实施例 1的钻体的剖视图。  Figure 6 is a cross-sectional view of the drill body of Embodiment 1.

图 7为实施例 1的钻体的俯视图。  Fig. 7 is a plan view of the drill body of the first embodiment.

图 8为本实用新型所提供实施例 2的外观示意图。  Fig. 8 is a schematic view showing the appearance of a second embodiment of the present invention.

图 9为电机轴还未与本实用新型的键连接时， 图 8的 A-A局部剖视图。 图 10为电机轴与本实用新型的键连接时， 图 8的 A-A局部剖视图。  Fig. 9 is a partial cross-sectional view taken along line A-A of Fig. 8 when the motor shaft has not been connected to the key of the present invention. Figure 10 is a partial cross-sectional view of the A-A of Figure 8 when the motor shaft is coupled to the key of the present invention.

图 11为电机轴还未插入电机轴孔时， 图 8的 B-B局部剖视图。  Figure 11 is a partial cross-sectional view of the B-B of Figure 8 when the motor shaft has not been inserted into the motor shaft hole.

图 12为实施例 2的钻体的剖视图。  Figure 12 is a cross-sectional view of the drill body of Embodiment 2.

图 13为实施例 2的钻体的俯视图。 图 14为实施例 2的主要结构爆炸图。 具体实施方式 Fig. 13 is a plan view of the drill body of the second embodiment. Figure 14 is an exploded view of the main structure of Embodiment 2. detailed description

实施例 1， 参照图 1-8  Embodiment 1, refer to Figure 1-8

参照附图。 本实用新型包括钻体 1， 自钻体的后端向钻体内延伸设有轴向的 电机轴孔 11， 钻体的后部还设有限位孔 13， 限位孔中设有针对电机轴 3的可活 动的限位部件 8， 所述钻夹头还设有操控所述限位部件 8使其与电机轴 3限位配 合和脱离限位配合状态的装置， 所述电机轴孔 11中沿电机轴孔的周向设有一圈 用于接受电机轴输出扭力的键 12， 以钻夹头的尾部至头部的方向为向下的方向， 所述键 12处于所述限位孔 13的下方。 所述限位部件 8可采用柱销形式。  Refer to the attached drawings. The utility model comprises a drill body 1 , and an axial motor shaft hole 11 is extended from a rear end of the drill body to the drill body, and a limiting hole 13 is further arranged at a rear portion of the drill body, and the limiting hole is provided with a motor shaft 3 The movable limiting member 8 is further provided with means for controlling the limiting member 8 to be engaged with and disengaged from the motor shaft 3, wherein the motor shaft hole 11 is in the middle of the shaft A ring 12 for receiving the torque output of the motor shaft is provided in the circumferential direction of the motor shaft hole, and the direction of the tail of the drill chuck to the head is downward, and the key 12 is located below the limiting hole 13. The limiting member 8 can be in the form of a pin.

所述操控所述限位部件使其与电机轴限位配合和脱离限位配合状态的装置 设有以下结构： 安装所述限位部件 8的可滑动的环 5， 其滑动方向垂直于电机轴 孔 11 ;  The device for controlling the limiting member to be engaged with the motor shaft limit and disengaging from the limit matching state is provided with the following structure: a slidable ring 5 on which the limiting member 8 is mounted, the sliding direction of which is perpendicular to the motor shaft Hole 11 ;

可被按压而操纵所述环 5 运动使所述限位部件与电机轴脱离限位配合状态 的按钮 4， 支撑所述环 5并在所述按钮 4被释放后使所述限位部件 8与电机轴限 位配合的弹簧件 6。 按钮 4可以是与环 5分离的部件， 也可以是连接在环 5上而 构成环 5的一部分。  a button 4 that can be pressed to manipulate the movement of the ring 5 to disengage the limiting member from the motor shaft from the limit fit state, support the ring 5 and cause the limiting member 8 to be after the button 4 is released The spring shaft 6 of the motor shaft is matched with the limit. The button 4 may be a separate component from the ring 5 or may be attached to the ring 5 to form part of the ring 5.

所述按钮 4与所述限位部件 8分别处于钻体 1的两侧，所述弹簧件 6为形状 对称的弧形弹簧片，所述弧形弹簧片与所述限位部件处于钻体的同一侧， 在本实 施例中，按钮 4为与环 5分离的部件，所述环 5具有与弧形弹簧片配合的弧形面。 这样， 弹簧件、 环、 按钮形成稳定的配合关系。  The button 4 and the limiting member 8 are respectively located on two sides of the drill body 1. The spring member 6 is a shape-symmetrical curved spring piece, and the curved spring piece and the limiting member are in the drill body. On the same side, in the present embodiment, the button 4 is a separate component from the ring 5, the ring 5 having an arcuate face that cooperates with the curved spring piece. Thus, the spring member, the ring, and the button form a stable mating relationship.

在钻夹头的后部还设有后套 2， 所述环 5处于后套 2内， 所述后套内设有所 述环 5的支撑板 22， 所述弹簧件 6处于后套内， 所述按钮 4从后套上的孔 21露 出后套表面。 所述环的外表面和所述后套内设有环滑动的导向面 51、 23。  A rear sleeve 2 is further disposed at a rear portion of the drill chuck, the ring 5 is located in the rear sleeve 2, and the support sleeve 22 of the ring 5 is disposed in the rear sleeve, and the spring member 6 is located in the rear sleeve. The button 4 exposes the back cover surface from the aperture 21 in the back cover. The outer surface of the ring and the rear sleeve are provided with guide surfaces 51, 23 for ring sliding.

本实施例在后套的后端设有所述环 5的限位盖板 7， 所述后套内设有限位盖 板的支撑台阶 24。 与钻体连接的卡圈 91压在限位盖板 7上， 从而从后部限定后 套， 钻体上的台阶从前部限定后套， 因而后套不能相对钻体前后滑动， 钻体上的 平面 14使得后套不能相对钻体转动。 环 5在轴向上被限位盖板 Ί和支撑板 22 所定位， 所述键 12的靠近电机轴孔孔口的那一端 15为斜面。 In this embodiment, a limiting cover 7 of the ring 5 is disposed at a rear end of the rear sleeve, and a support step 24 of the limiting cover is disposed in the rear sleeve. The collar 91 connected to the drill body is pressed against the limit cover 7 so as to be defined from the rear The sleeve on the drill body defines a rear sleeve from the front portion, so that the rear sleeve cannot slide back and forth relative to the drill body, and the plane 14 on the drill body prevents the rear sleeve from rotating relative to the drill body. The ring 5 is axially positioned by the limiting cover Ί and the support plate 22, and the end 15 of the key 12 adjacent to the aperture of the motor shaft bore is beveled.

在本实用新型中，所述电机轴可以是电机本身自带的输出轴， 也可以是能够 向钻夹头输出电机动力的连接在电机上的轴件。  In the present invention, the motor shaft may be an output shaft that is self-contained by the motor itself, or may be a shaft member that is connected to the motor that can output motor power to the drill chuck.

所述电机轴 3包括处于一端的扭力输入部分 34和处于另一端的与键 12配合 的槽 32， 用于扭力输出， 在槽 32和扭力输入部分 34之间设有限位环 33。 在电 机轴的处于电机轴孔 11中的部分中还设有与所述限位部件 8配合的限位槽 31。 实施例 2， 参照图 8-14  The motor shaft 3 includes a torque input portion 34 at one end and a groove 32 at the other end that cooperates with the key 12 for torque output, and a limit ring 33 is provided between the groove 32 and the torque input portion 34. A limiting groove 31 that cooperates with the limiting member 8 is also provided in a portion of the motor shaft that is in the motor shaft hole 11. Embodiment 2, refer to Figure 8-14

参照附图。 本实用新型包括钻体 210， 自钻体的后端向钻体内延伸设有轴向 的电机轴孔 211， 钻体的后部还设有限位孔 213， 限位孔中设有针对电机轴 230 的可活动的限位部件。所述限位部件包括分别处于两端的钢珠 261以及处于中间 的顶柱 262， 这样， 能够减小电机轴退出时的阻力。  Refer to the attached drawings. The utility model comprises a drill body 210. The rear end of the drill body extends into the drill body and is provided with an axial motor shaft hole 211. The rear portion of the drill body is further provided with a limit hole 213, and the limit hole is provided with a motor shaft 230. Active limit parts. The limiting member includes a steel ball 261 at both ends and a top column 262 in the middle, so that the resistance when the motor shaft is withdrawn can be reduced.

所述电机轴孔中沿电机轴孔的周向设有一圈用于接受电机轴输出扭力的键 212， 以钻夹头的尾部至头部的方向为向下的方向， 所述键 212处于所述限位孔 213的下方。 所述键 212的靠近电机轴孔孔口的那一端为斜面。  A ring 212 is arranged in the motor shaft hole along the circumferential direction of the motor shaft hole for receiving the torque output of the motor shaft. The direction from the tail to the head of the drill chuck is downward, and the key 212 is at the limit. Below the bit hole 213. The end of the key 212 near the aperture of the motor shaft bore is a bevel.

所述操控所述限位部件使其与电机轴限位配合和脱离限位配合状态的装置 设有以下结构： 在钻体的后部所设的可沿钻夹头轴向运动的控制套 220， 所述控 制套内壁设有控制限位部件运动的凸轮面 222， 以使限位部件处于与电机轴限位 配合和脱离限位配合的状态， 控制套内壁还设有定位控制套轴向位置的弹簧片 241 , 所述弹簧片的圈状安装母体 240卡在控制套 220内壁的槽 221中， 圈状安 装母体 240具有向内的翻边，所述翻边被定位压板 250压住； 所述钻体的表面沿 其轴向设有与弹簧片配合的第一定位凹槽 215和第二定位凹槽 214， 所述第一定 位凹槽 215为限位部件处于与电机轴限位配合状态时的控制套定位槽，所述第二 定位凹槽 214为限位部件处于与电机轴脱离限位配合的状态时的控制套定位槽。 钻体沿其周向放射状地设有 3条所述限位孔 213， 所述控制套设有 3个所述 弹簧片 241， 分别处在两两限位孔之间， 钻体外表面对应所述弹簧片 241处为平 面， 并在所述平面上设置所述第一定位凹槽 215和第二定位凹槽 214。 The device for controlling the limiting component to cooperate with the motor shaft limit position and the disengaged engagement state is provided with the following structure: a control sleeve 220 disposed at the rear of the drill body and axially movable along the drill chuck The inner wall of the control sleeve is provided with a cam surface 222 for controlling the movement of the limiting member, so that the limiting member is in a state of being engaged with the motor shaft limit and being disengaged from the limit position, and the inner wall of the control sleeve is further provided with the axial position of the positioning control sleeve. The spring piece 241, the ring-shaped mounting body 240 of the spring piece is caught in the groove 221 of the inner wall of the control sleeve 220, and the ring-shaped mounting body 240 has an inward flange, which is pressed by the positioning platen 250; The surface of the drill body is provided with a first positioning groove 215 and a second positioning groove 214 which are engaged with the spring piece along the axial direction thereof, and the first positioning groove 215 is in a state in which the limiting component is in a position matching with the motor shaft. The control sleeve positioning groove is a control sleeve positioning groove when the limiting component is in a state of being out of the limit position of the motor shaft. The drill body is radially provided with three of the limiting holes 213, and the control sleeve is provided with three spring pieces 241 respectively located between the two limiting holes, and the external surface of the drill corresponds to the The spring piece 241 is planar, and the first positioning groove 215 and the second positioning groove 214 are disposed on the plane.

本实施例以手紧钻夹头为例， 附图标号 291为操作钻夹头螺母的外套， 附图 标号 292为夹爪，附图标号 251为与控制套 220连接的固定定位压板 250的卡圈。  In this embodiment, a hand-tight drill chuck is taken as an example, reference numeral 291 is a jacket for operating a drill chuck nut, reference numeral 292 is a jaw, and reference numeral 251 is a collar of a fixed positioning pressure plate 250 connected to the control sleeve 220. .

所述电机轴 230包括处于一端的扭力输入部分和处于另一端的与键 212配合 的槽 232， 用于扭力输出， 在槽 232和扭力输入部分之间设有限位环。 在电机轴 的处于电机轴孔 211中的部分中还设有与所述限位部件配合的限位槽 231。  The motor shaft 230 includes a torque input portion at one end and a slot 232 at the other end that cooperates with the key 212 for torque output with a stop ring between the slot 232 and the torque input portion. A limiting groove 231 that cooperates with the limiting member is also provided in a portion of the motor shaft that is in the motor shaft hole 211.

Claims

权利要求书 Claim 1、 一种装卸快捷的钻夹头， 包括钻体， 自钻体的后端向钻体内延伸设有轴 向的电机轴孔，钻体的后部还设有垂直于电机轴孔的限位孔， 限位孔中设有针对 电机轴的可活动的限位部件，所述钻夹头还设有操控所述限位部件使其与电机轴 限位配合和脱离限位配合状态的装置，其特征在于所述电机轴孔中沿电机轴孔的 周向设有一圈用于接受电机轴输出扭力的键，以钻夹头的尾部至头部的方向为向 下的方向， 所述键处于所述限位孔的下方。 1. A drill chuck with quick loading and unloading, comprising a drill body, an axial motor shaft hole extending from a rear end of the drill body to the drill body, and a rear portion of the drill body is further provided with a limit perpendicular to the motor shaft hole a movable limiting member for the motor shaft is disposed in the limiting hole, and the drilling chuck is further provided with a device for controlling the limiting member to cooperate with the motor shaft limit position and to be out of the limit matching state. The utility model is characterized in that in the motor shaft hole, a ring for receiving the torque output of the motor shaft is arranged in a circumferential direction of the motor shaft hole, wherein the direction of the tail end of the drill chuck to the head is a downward direction, and the key is in the Below the limit hole. 2、 如权利要求 1所述的新型的装卸快捷的钻夹头， 其特征在于所述操控所 述限位部件使其与电机轴限位配合和脱离限位配合状态的装置设有以下结构： 安装所述限位部件的可滑动的环， 其滑动方向垂直于电机轴孔； 可被按压而操纵所述环运动使所述限位部件与电机轴脱离限位配合状态的 按钮；  2. The novel quick-disconnecting drill chuck according to claim 1, wherein the device for controlling the limiting member to be engaged with the motor shaft limit and disengaged from the limit position has the following structure: a slidable ring for mounting the limiting member, the sliding direction of which is perpendicular to the motor shaft hole; a button that can be pressed to manipulate the ring movement to disengage the limiting member from the motor shaft from the limit matching state; 支撑所述环并在所述按钮被释放后使所述限位部件与电机轴限位配合的弹 簧件。  a spring member that supports the ring and engages the limiting member with the motor shaft limit after the button is released. 3、 如权利要求 2所述的一种装卸快捷的钻夹头， 其特征在于所述按钮与所 述限位部件分别处于钻体的两侧，所述弹簧件为形状对称的弧形弹簧片， 所述弹 簧片与所述限位部件处于钻体的同一侧， 所述环具有与弹簧片配合的弧形面。  3. The quick-loading drill chuck according to claim 2, wherein the button and the limiting member are respectively located on two sides of the drill body, and the spring member is a shape-symmetrical curved spring piece. The spring piece and the limiting member are on the same side of the drill body, and the ring has an arcuate surface that cooperates with the spring piece. 4、 如权利要求 2所述的一种装卸快捷的钻夹头， 其特征在于在钻夹头的后 部设有后套， 所述环处于后套内， 所述后套内设有所述环的支撑板， 所述弹簧件 处于后套内，所述按钮暴露在后套的表面， 所述环的外表面和所述后套内设有环 滑动的导向面。  4. The quick-loading drill chuck according to claim 2, wherein a rear sleeve is disposed at a rear portion of the drill chuck, the ring is located in the rear sleeve, and the rear sleeve is provided with the The support plate of the ring, the spring member is in the back sleeve, the button is exposed on the surface of the back sleeve, and the outer surface of the ring and the rear sleeve are provided with a ring sliding guiding surface. 5、 如权利要求 4所述的一种装卸快捷的钻夹头， 其特征在于它在后套的后 端设有所述环的限位盖板， 所述后套内设有限位盖板的支撑台阶。  5 . The quick-loading drill chuck according to claim 4 , wherein the rear end of the rear sleeve is provided with a limit cover plate of the ring, and the rear sleeve is provided with a limit cover plate. Support the steps. 6、 如权利要求 1所述的一种装卸快捷的钻夹头， 其特征在于所述操控所述 限位部件使其与电机轴限位配合和脱离限位配合状态的装置设有以下结构：在钻 体的后部所设的可沿钻夹头轴向运动的控制套，所述控制套内壁设有控制限位部 件运动的凸轮面， 以使限位部件处于与电机轴限位配合和脱离限位配合的状态， 控制套内壁还设有定位控制套轴向位置的弹簧片，所述钻体的表面沿其轴向设有 与弹簧片配合的第一定位凹槽和第二定位凹槽，所述第一定位凹槽为限位部件处 于与电机轴限位配合状态时的控制套定位槽，所述第二定位凹槽为限位部件处于 与电机轴脱离限位配合的状态时的控制套定位槽。 6. The quick-loading drill chuck according to claim 1, wherein the device for controlling the limiting member to be engaged with the motor shaft limit and disengaging from the limit position has the following structure: Drilling a control sleeve disposed at the rear of the body and axially movable along the drill chuck, the inner wall of the control sleeve is provided with a cam surface for controlling the movement of the limiting member, so that the limiting member is in a positional engagement and disengagement limit with the motor shaft The inner wall of the control sleeve is further provided with a spring piece for positioning the axial position of the control sleeve, and the surface of the drill body is provided with a first positioning groove and a second positioning groove which are matched with the spring piece along the axial direction thereof. The first positioning groove is a control sleeve positioning groove when the limiting component is in a state of being engaged with the motor shaft, and the second positioning groove is a control when the limiting component is in a state of being out of the motor shaft. Set of positioning slots. 7、 如权利要求 6所述的一种装卸快捷的钻夹头， 其特征在于所述限位部件 包括分别处于两端的钢珠以及处于中间的顶柱。  7. A quick loading and unloading drill chuck according to claim 6, wherein said limiting member comprises steel balls at both ends and a top column in the middle. 8、 如权利要求 6所述的一种装卸快捷的钻夹头， 其特征在于钻体沿其周向 放射状地设有 3条所述限位孔，所述控制套设有 3个所述弹簧片， 分别处在两两 限位孔之间，钻体外表面对应所述弹簧片处为平面， 并在所述平面上设置所述第 一定位凹槽和第二定位凹槽。  8. The quick-loading drill chuck according to claim 6, wherein the drill body is radially provided with three of the limiting holes along a circumferential direction thereof, and the control sleeve is provided with three of the springs. The sheets are respectively located between the two limiting holes, and the outer surface of the drill is plane corresponding to the spring piece, and the first positioning groove and the second positioning groove are disposed on the plane. 9、 如权利要求 8所述的一种装卸快捷的钻夹头， 其特征在于它具有所述弹 簧片的圈状安装母体， 圈状安装母体卡在控制套内壁的槽中， 圈状安装母体具有 向内的翻边， 所述翻边被定位压板压住。  9. The quick-loading drill chuck according to claim 8, characterized in that it has a ring-shaped mounting body of the spring piece, and the ring-shaped mounting body is stuck in the groove of the inner wall of the control sleeve, and the ring-shaped mounting body There is an inward flange which is pressed by the positioning platen. 10、如权利要求 1所述的一种装卸快捷的钻夹头， 其特征在于所述键的靠近 电机轴孔孔口的那一端为斜面。  10. A quick and easy drill chuck according to claim 1, wherein the end of the key adjacent to the orifice of the motor shaft bore is a bevel.
PCT/CN2011/079342 2011-09-02 2011-09-05 Quickly assembled and disassembled drill chunk Ceased WO2013029281A1 (en)

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