CN2617509Y - 工作元件的快换夹紧机构 - Google Patents

工作元件的快换夹紧机构 Download PDF

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Publication number
CN2617509Y
CN2617509Y CNU032212194U CN03221219U CN2617509Y CN 2617509 Y CN2617509 Y CN 2617509Y CN U032212194 U CNU032212194 U CN U032212194U CN 03221219 U CN03221219 U CN 03221219U CN 2617509 Y CN2617509 Y CN 2617509Y
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support
rotary body
rotary sleeve
operation element
locking element
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Expired - Fee Related
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CNU032212194U
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English (en)
Inventor
桑树华
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Positec Power Tools Suzhou Co Ltd
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Positec Power Tools Suzhou Co Ltd
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Priority to CNU032212194U priority Critical patent/CN2617509Y/zh
Priority to DE200460001003 priority patent/DE602004001003T2/de
Priority to EP20040252091 priority patent/EP1468771B1/en
Priority to US10/823,039 priority patent/US7251897B2/en
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Publication of CN2617509Y publication Critical patent/CN2617509Y/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
    • B23D51/10—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for hand-held or hand-operated devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17717—Rotary eccentric-cam sleeve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17769—Pivoted or rotary
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17905—Bottomless
    • Y10T279/17914—Friction grip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9473—For rectilinearly reciprocating tool
    • Y10T83/9481—Tool is single element reciprocable along elongate cutting edge [e.g., saw blade, etc.]

Abstract

一种工作元件的快换夹紧机构，包括输出轴9、旋转套1、扭簧8，输出轴9上固定连接有支架4，该支架4位于所述的旋转套1的内腔中，旋转套1的内腔中还设置有旋转体7，支架4上开有锁紧元件导槽10，该锁紧元件导槽10内设置有与支架4枢轴连接的锁紧元件5，旋转体7的前端部设有一段螺旋面15，当转动旋转套时，可以使螺旋面压动锁紧元件，使得锁紧元件压紧工作元件，本实用新型操作方便，结构简单，并且体积小。

Description

工作元件的快换夹紧机构
                        技术领域
本实用新型涉及一种锯类电动工具的工作元件的快换夹紧机构。
                        背景技术
现有技术中，锯类电动工具，例如曲线锯或往复锯，其锯片快速夹紧机构有CN1217675A所揭示，其缺点是装配时需要铆接；US05165173采用螺纹夹紧，故装卸锯片不方便；US05324052采用螺纹侧面压紧锯片，但其外型尺寸大，不容易操作。
                        发明内容
本实用新型的目的在于提供一种体积小而操作方便的工作元件的快换夹紧机构。
本实用新型的技术方案是：一种工作元件的快换夹紧机构，包括输出轴、旋转套、扭簧，所述的输出轴上固定连接有支架，该支架位于所述的旋转套的内腔中，支架的前端部设有支架插槽，所述的旋转套的前端部开有插孔，所述的旋转套的内腔中还设置有旋转体，该旋转体与所述的旋转套相固定连接，所述的支架上开有径向延伸并与支架插槽相连通的锁紧元件导槽，该锁紧元件导槽内设置有与支架枢轴连接的锁紧元件，所述的旋转体的前端部设有一段螺旋面，在工作元件处于被夹紧的状态下，所述的螺旋面顶在所述的锁紧元件的后侧表面上。
本实用新型与现有技术相比具有下列优点：
当转动旋转套时，可以使螺旋面推动锁紧元件，使得锁紧元件压紧工作元件，本实用新型操作方便，结构简单，并且体积小。
                        附图说明
附图1为本实用新型装有工作元件后的立体结构图；
附图2为本实用新型的各零部件分解后的立体图；
附图3为工作元件插入支架插槽及插孔之前的本实用新型结构主剖视图；
附图4为工作元件插入支架插槽及插孔之后的本实用新型结构主剖视图；
附图5为工作元件插入支架插槽及插孔之后的本实用新型结构俯剖视图；
附图6为工作元件插入支架插槽及插孔之前的本实用新型左视图；
附图7为工作元件插入支架插槽及插孔之后的本实用新型左视图；
附图8为本实用新型的锁紧元件的立体图；
附图9为本实用新型的旋转体的立体图；
其中：1、旋转套；2、径向凸起；3、工作元件；4、支架；5、锁紧元件；6、转轴；7、旋转体；8、扭簧；9、输出轴；10、锁紧元件导槽；11、定位槽；12、定位凸筋；13、插孔；14、支架插槽；15、螺旋面；16、限位凸起；17、定位槽；18、限位销；19、限位凸起；20、凸肩
                        具体实施方式
参见附图1至附图2，一种工作元件的快换夹紧机构，包括输出轴9、旋转套1、扭簧8。所述的输出轴9上固定连接有支架4，该支架4位于所述的旋转套1的内腔中。进一步参见图6，支架4的前端部设有支架插槽14，以及所述的旋转套1的前端部开有与支架插槽14相通的插孔13。所述的旋转套1的内腔中还设置有旋转体7。所述的旋转体7上有一个轴向延伸的定位凸筋12，所述的旋转套1的内腔壁上有一个轴向延伸的定位槽17，所述的定位凸筋12与定位槽17相卡扣，使得旋转体7与旋转套1相固定连接。参见图4和图9，所述的旋转体7的前端部还设有一逐渐递升的螺旋面15，在工作元件处于被夹紧的状态下，所述的螺旋面15顶在所述的锁紧元件5的后侧表面上。所述的旋转体7的具有螺旋面的端部具有两个限位凸起16，19，所述的支架4的朝向螺旋面的端部设有限位销18，所述的限位销18位于两个限位凸起16，19之间，该两个限位凸起16，19可以挡住限位销18，使得旋转体7可在顺时针方向和逆时针方向上被转动限位。
所述的支架4上开有径向延伸并与支架插槽14相连通的锁紧元件导槽10。参见图8，一个具有不规则形状的锁紧元件5收容在该锁紧元件导槽10内并通过转轴6与支架4相枢轴连接。所述的支架4与旋转体7的前端面可转动地接触，所述的支架4的后侧杆部穿过旋转体7的中央孔。所述的扭簧8的一端部与固定于旋转套1上的旋转体7相连接，扭簧8的另一端部与输出轴9相连接。
在使用时，参见图3到图7，扳动旋转套1上的径向凸起2，在旋转套1的插孔13与支架插槽14相平行时(图6)，工作元件3插入支架插槽14内，此时对扭簧8施加了一个扭力。然后，松开旋转套1上的径向凸起2，在扭簧8的扭力作用下，旋转体7的螺旋面15压紧锁紧元件5的后侧表面上，使得锁紧元件5围绕转轴6向下旋转而压紧工作元件3，并且同时，旋转套1的插孔13与支架插槽14也即工作元件3相错位(图7)，使得工作元件3的凸肩20被卡在旋转套1的插孔13内而不会被拔出，从而实现了工作元件的有效夹紧。

Claims (5)

1、一种工作元件的快换夹紧机构，包括输出轴[9]、旋转套[1]、扭簧[8]，所述的输出轴[9]上固定连接有支架[4]，该支架[4]位于所述的旋转套[1]的内腔中，支架[4]的前端部设有支架插槽[14]，所述的旋转套[1]的前端部开有插孔[13]，其特征在于：所述的旋转套[1]的内腔中还设置有旋转体[7]，该旋转体[7]与所述的旋转套[1]相固定连接，所述的支架[4]上开有径向延伸并与支架插槽[14]相连通的锁紧元件导槽[10]，该锁紧元件导槽[10]内设置有与支架[4]枢轴连接的锁紧元件[5]，所述的旋转体[7]的前端部设有一段螺旋面[15]，在工作元件处于被夹紧的状态下，所述的螺旋面[15]顶在所述的锁紧元件[5]的后侧表面上。
2、根据权利要求1所述的工作元件的快换夹紧机构，其特征在于：所述的支架[4]与旋转体[7]的前端面可转动地接触，所述的支架[4]的后侧杆部穿过旋转体[7]的中央孔。
3、根据权利要求1所述的工作元件的快换夹紧机构，其特征在于：所述的扭簧[8]的一端部与固定于旋转套[1]上的旋转体[7]相连接，扭簧[8]的另一端部与输出轴[9]相连接。
4、根据权利要求1所述的工作元件的快换夹紧机构，其特征在于：所述的旋转体[7]上有一个轴向延伸的定位凸筋[12]，所述的旋转套[1]的内腔壁上有一个轴向延伸的定位槽[17]，所述的定位凸筋[12]与定位槽[17]相卡扣，使得旋转体[7]与旋转套[1]相固定连接。
5、根据权利要求1所述的工作元件的快换夹紧机构，其特征在于：所述的旋转体[7]的具有螺旋面的端部具有两个限位凸起[16，19]，所述的支架[4]的朝向螺旋面的端部设有限位销[18]，所述的限位销[18]位于两个限位凸起[16，19]之间。
CNU032212194U 2003-04-14 2003-04-14 工作元件的快换夹紧机构 Expired - Fee Related CN2617509Y (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CNU032212194U CN2617509Y (zh) 2003-04-14 2003-04-14 工作元件的快换夹紧机构
DE200460001003 DE602004001003T2 (de) 2003-04-14 2004-04-07 Sägeblattspannvorrichtung
EP20040252091 EP1468771B1 (en) 2003-04-14 2004-04-07 Saw blade clamping device
US10/823,039 US7251897B2 (en) 2003-04-14 2004-04-13 Blade clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU032212194U CN2617509Y (zh) 2003-04-14 2003-04-14 工作元件的快换夹紧机构

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US (1) US7251897B2 (zh)
EP (1) EP1468771B1 (zh)
CN (1) CN2617509Y (zh)
DE (1) DE602004001003T2 (zh)

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CN105983728A (zh) * 2015-02-16 2016-10-05 苏州宝时得电动工具有限公司 两用锯条夹头及设有该夹头的电锯

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059397B (zh) * 2009-11-16 2013-01-30 苏州宝时得电动工具有限公司 往复锯的锯片安装结构
CN105983728A (zh) * 2015-02-16 2016-10-05 苏州宝时得电动工具有限公司 两用锯条夹头及设有该夹头的电锯
CN105983728B (zh) * 2015-02-16 2019-04-19 苏州宝时得电动工具有限公司 两用锯条夹头及设有该夹头的电锯

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US7251897B2 (en) 2007-08-07
DE602004001003T2 (de) 2006-12-14
EP1468771B1 (en) 2006-05-31
US20040251642A1 (en) 2004-12-16
DE602004001003D1 (de) 2006-07-06
EP1468771A1 (en) 2004-10-20

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