WO2014201955A1 - 建工钻头与直柄钻头一体互换锁合钻夹头 - Google Patents

建工钻头与直柄钻头一体互换锁合钻夹头 Download PDF

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Publication number
WO2014201955A1
WO2014201955A1 PCT/CN2014/079461 CN2014079461W WO2014201955A1 WO 2014201955 A1 WO2014201955 A1 WO 2014201955A1 CN 2014079461 W CN2014079461 W CN 2014079461W WO 2014201955 A1 WO2014201955 A1 WO 2014201955A1
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WO
WIPO (PCT)
Prior art keywords
drill
locking
locking mechanism
self
chuck
Prior art date
Application number
PCT/CN2014/079461
Other languages
English (en)
French (fr)
Inventor
王文江
Original Assignee
浙江海王电器有限公司
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
Priority claimed from CN201310242983.5A external-priority patent/CN103264374B/zh
Priority claimed from CN 201320351244 external-priority patent/CN203357411U/zh
Application filed by 浙江海王电器有限公司 filed Critical 浙江海王电器有限公司
Priority to EP14813877.9A priority Critical patent/EP3012072A4/en
Publication of WO2014201955A1 publication Critical patent/WO2014201955A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B25D17/084—Rotating chucks or sockets
    • B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/003—Details relating to chucks with radially movable locking elements
    • B25D2217/0038—Locking members of special shape
    • B25D2217/0049—Roll-shaped locking members

Definitions

  • the invention relates to the technical field of electric tools, in particular to a mechanically-compatible drill bit and a straight shank drill bit.
  • Commonly used electric tools include an electric drill using a straight shank drill bit for drilling function and a hammer drill using a construction drill bit for achieving a chisel function.
  • the electric hammer drill has the function of electric drill.
  • When using the electric drill function it is required to have a drill chuck capable of holding a straight shank drill on the electric hammer drill.
  • the usual method is the one shown in Figure 1:
  • the drill chuck is locked to the electric hammer SDS (Special Direct System, 4-hole and 5-channel design) through the connecting rod, and then passed.
  • the drill chuck has three claws and a straight shank bit to realize the output of the work.
  • the disadvantage is that the matching cost is high, the output precision is poor, and the replacement is inconvenient.
  • Figure 2 is another solution.
  • the drill chuck is used directly with the tool, and the structure is convenient to replace the drill bit.
  • the distance between the jaws and the SDS locking mechanism is long, and only the ⁇ 12 mm drill bit can be clamped when the construction drill bit is clamped; and the ⁇ 12 mm or more construction drill bit, as shown in Fig. 3
  • the drill pipe is thicker than the drill shank, and the shoulder between the drill pipe and the shank interferes with the drill bit clamp (shown in the ellipse in the figure;), the drill shank must be lengthened to be used, that is, a non-standard drill bit must be used.
  • the object of the present invention is to provide a compact and compact clamping structure, which shortens the distance between the jaw expansion mechanism and the SDS locking mechanism, and the integrated drill and the straight shank bit are interchangeable and can be directly used.
  • a construction drill bit and a straight shank bit are integrally exchanged with a lock chuck, including a straight shank bit jaw locking mechanism, a construction bit locking mechanism, and a jaw self-locking mechanism.
  • the drill body assembly and the jaw locking control plate form a jaw telescopic locking mechanism; the ferrule, the positioning ring that is engaged with the ferrule, the drill card plucking plate, the drill card, the drill card spring, and The short cylinder of the radial limit of the drill card forms a chisel locking and locking mechanism; the anti-rotation lower plate, the anti-rotation upper plate and the drill body assembly form a jaw self-locking mechanism.
  • the rotation preventing lower plate is welded to the connecting sleeve of the drill chuck assembly, and the rotation lower plate has a plurality of self-locking grooves for the self-locking buckle of the rotation preventing upper plate to realize the self-locking function.
  • the self-locking groove of the rotation preventing lower plate is continuously disposed circumferentially, and the self-locking buckle of the rotation preventing upper plate is evenly arranged in the circumferential direction by 2 to 4, and the position corresponds to the self-locking groove of the rotation preventing lower plate.
  • the positioning ring and the drill card pad are circumferentially interlocked, and a plurality of small protrusions on the drill card pad are engaged in the corresponding holes of the rotation stop upper plate, so that the rotation of the rotation plate is axially displaced, thereby making the self-locking buckle
  • the button is locked into the self-locking groove of the lower plate to realize the reverse buckle self-locking function.
  • the end of the drill chuck of the present invention further has a dustproof mechanism, and the hole is formed by a circlip and a dustproof brush.
  • the invention effectively shortens the distance between the jaw stretching mechanism and the SDS locking mechanism, effectively avoids the interference between the shoulder of the drill body and the chuck when using the large-sized drill bit, and realizes the matching of the construction drill bit of cM2mm or more. problem.
  • Figure 1 is a schematic view of a conventional drill chuck connected by a connecting rod
  • FIG. 2 is a schematic view showing an integrated connection between a conventional drill chuck and a tool
  • Figure 3 is a schematic view showing the interference of the drill chuck and the shoulder of the drill bit when the structure of Figure 2 is locked with a larger-sized construction drill bit;
  • Figure 4 is a schematic structural view of the present invention.
  • Figure 5 is an exploded view of the present invention
  • a construction drill bit and a straight shank bit are integrally exchanged with a lock chuck, including a straight shank bit jaw locking mechanism, a construction bit locking mechanism, a jaw self-locking mechanism and dustproof
  • the organization consists of four parts.
  • the drill body assembly 3 and the jaw locking control panel 15 form a jaw telescopic locking mechanism; the drill card holder 5, the ferrule 6, the drill card spring 7, the drill card 10, the positioning ring 12 and the short cylinder 13 Formed by the chisel locking and locking mechanism; in Fig.
  • the anti-rotation lower plate 4, the anti-rotation upper plate 11 and the drill body assembly 3 form a jaw self-locking mechanism; the hole is provided with a circlip ring 1, a dust-proof brush 2 and a drill bit
  • the drill body itself forms a dustproof mechanism.
  • the drill card 10 When the drill bit is inserted and the ferrule 6 is released, due to the action of the spring thrust, the drill card 10 can generate an axial return movement, and the drill card 10 pushes the short cylinder 13 during the movement, so that the short cylinder 13 slides down into the drill bit.
  • the lock groove realizes the overall recovery of the mechanism, as shown in Fig. 5, the chisel function lock of the drill bit is realized.
  • the jaws 16 should be in the released position when the drill chuck is locked by the chisel function, so that the drill bit can achieve axial sliding displacement. During this process, due to the vibration during the operation of the power tool itself, the loose jaws are released. 16 It is possible that the thread of the control jaw 16 is displaced due to the vibration, and the method of causing the jaw 16 is: through the drill body assembly 3 in FIG. 5, the rotation stop plate 4, the drill chuck 5, the rotation stop plate The mechanism formed by the 11 is the reverse buckle self-locking mechanism, and the locking jaw 16 is self-locking and does not move.
  • the function is as follows:
  • the rotation preventing lower plate 4 is welded to the connecting sleeve 14 of the drill chuck assembly 3, and the rotation preventing lower plate 4 has a plurality of self-locking grooves for locking the self-locking buckle of the upper plate 11 Realize the self-locking function;
  • the specific movement process is: After the three-jaw telescopic mechanism loosens the clamping bit, there is The three self-locking buckles that can be stopped in the upper plate 11 are not caught in the lower rotation preventing plate 4, and the circular movement of the drill card paddle 5 is driven by manually rotating the positioning ring 12, at this time, by the drill card paddle 5
  • the three small protrusions are locked into the three holes of the upper plate 11 to cause axial displacement of the rotation preventing upper plate 11, so that the self-locking buckle is buckled into the self-locking groove of the lower rotation plate 4, thereby realizing the reverse buckle Lock function.
  • the locking method of the straight shank bit is: Pulling the ferrule 6 by rotating the yoke 6 Locking the control panel 15 Lock the straight shank drill bit and return the 6 self-locking device to prevent the drill bit from loosening.
  • the size of the locking drill bit can be adjusted to achieve the locking requirements of the larger size drill head by adjusting the size of the drill chuck assembly 3.

Abstract

一种建工钻头与直柄钻头一体互换锁合钻夹头，包括有直柄钻头夹爪锁合机构，建工钻头锁合机构，夹爪自锁机构。钻夹体组件（3）与夹爪锁紧控制盘（15）形成夹爪伸缩锁合机构。卡套（6），与卡套扣合的定位环（12），定位环内依次设置的钻卡拔片（5）、钻卡（10）、钻卡弹簧（7），及钻卡径向限位的短圆柱（13）形成的是凿锁定锁合机构。止转下板（4）、止转上板（11）和钻夹体组件组成的是夹爪自锁机构。该钻夹头缩短了夹爪伸缩机构与SDS锁合机构之间的距离，有效避让了使用大规格钻头时钻体肩部与夹头干涉的情况，实现了Φ12以上建工钻头的通配。

Description

建工钻头与直柄钻头一体互换锁合钻夹头
本申请要求以下中国专利申请的优先权， 其全部内容通过引用结合在 本申请中：
1 ) 2013年 06月 17 日提交中国专利局、 申请号为 201310242983.5、 发明名称为"建工钻头与直柄钻头一体互换锁合钻夹头 "的发明专利申请。
2 ) 2013年 06月 17 日提交中国专利局、 申请号为 201320351244.5、 发明名称为"建工钻头与直柄钻头一体互换锁合钻夹头 "的实用新型专利申 请。 技术领域
本发明涉及电动工具技术领域， 特别涉及一种建工钻头与直柄钻头一 体互换锁合钻夹头。
背景技术
常用的电动工具有实现钻削功能的使用直柄钻头的电钻和实现凿功能 的使用建工钻头的电锤钻。 而电锤钻多兼有电钻功能， 在利用其电钻功能 时需要在电锤钻上装有能夹持直柄钻头的钻夹头。 通常的做法是如图 1所 示的方案： 将钻夹头通过连接杆锁合到电锤 SDS ( Special Direct System, 电锤钻夹持方式， 有 4坑道和 5坑道设计）装置上， 再通过钻夹头三爪锁 合直柄钻头来实现工作的输出， 缺点是配套成本高， 输出精度差， 更换不 方便。 图 2是另一种方案， 钻夹头直接与工具一体配合使用， 其结构更换 钻头方便。 但该结构由于锁合结构复杂， 夹爪与 SDS锁合机构之间的距离 较长， 装夹建工钻头时只能装夹 Φ 12mm 以下钻头； 而 φ 12mm 以上建工 钻头， 如图 3所示， 钻杆比钻柄粗， 钻杆与钻柄间的肩部与钻头夹产生干 涉（图中椭圓部所示；)，钻头柄部就必须加长才能使用，即须使用非标钻头。
发明内容
本发明的目的是提供一种夹爪锁合结构紧凑， 缩短夹爪伸缩机构与 SDS锁合机构之间的距离的建工钻头与直柄钻头一体互换锁合钻夹头， 可 以直接使用 Φ 12mm以上的标准建工钻头。 本发明解决其技术问题所釆用的技术方案是：
一种建工钻头与直柄钻头一体互换锁合钻夹头， 包括有直柄钻头夹爪 锁合机构， 建工钻头锁合机构， 夹爪自锁机构。 钻夹体组件与夹爪锁紧控 制盘形成夹爪伸缩锁合机构； 卡套、 与卡套扣合的定位环， 定位环内侧依 次设置的钻卡拔片、 钻卡、 钻卡弹簧， 及钻卡径向限位的短圓柱形成的是 凿锁定锁合机构； 止转下板、 止转上板和钻夹体组件形成的是夹爪自锁机 构。
作为优选方案， 止转下板与钻夹体组件中连接套焊接在一起， 并且止 转下板有若干个自锁槽可供止转上板的自锁扣卡住实现自锁功能。
作为优选方案， 止转下板的自锁槽周向连续设置， 止转上板的自锁扣 周向均匀设置 2至 4个， 位置与止转下板的自锁槽对应。
作为优选方案， 定位环与钻卡拨片周向连动， 钻卡拨片上有若干个小 凸起卡入止转上板对应的孔中， 使止转上板产生轴向位移， 从而使自锁扣 扣入止转下板自锁槽中， 实现反扣自锁功能。
作为优选方案， 本发明的钻夹头的端部还有防尘机构， 孔用弹性挡圈、 防尘刷构成防尘机构。
该发明有效的缩短了夹爪伸缩机构与 SDS锁合机构之间的距离， 有效 的避让了使用大规格钻头时钻体肩部与夹头干涉的情况， 实现了 cM2mm 以上建工钻头的通配问题。
附图说明
图 1为普通通过连接杆连接钻夹头的示意图；
图 2为现有的钻夹头与工具一体连接的示意图；
图 3为图 2的结构在锁合较大规格建工钻头时， 钻夹头与钻头肩部干 涉示意图；
图 4为本发明结构示意图；
图 5为本发明的爆炸图；
图中： 1.孔用弹性挡圈， 2.防尘刷， 3.钻夹体组件， 4.止转下板， 5 钻 卡拔片， 6.卡套， 7.钻卡弹簧， 8.轴用弹性挡圈， 9.平垫圈， 10.钻卡， 11. 止转上板， 12.定位环， 13.短圓柱， 14.连接套， 15.夹爪锁紧控制盘， 16. 夹爪。
具体实施方式
以下结合附图对本发明作进一步详细描述。
如图 5所示， 一种建工钻头与直柄钻头一体互换锁合钻夹头， 包括有 直柄钻头夹爪锁合机构， 建工钻头锁合机构， 夹爪自锁机构及防尘机构四 部分组成。图 5中钻夹体组件 3与夹爪锁紧控制盘 15形成夹爪伸缩锁合机 构； 钻卡拔片 5、 卡套 6、 钻卡弹簧 7、 钻卡 10、 定位环 12及短圓柱 13 形成的是凿锁定锁合机构； 图 5中止转下板 4、 止转上板 11和钻夹体组件 3形成的是夹爪自锁机构； 孔用弹性挡圈 1、 防尘刷 2及钻头钻体本身形成 的是防尘机构。
如图 5所示，推动卡套 6产生轴向位移时，卡套 6与定位环 12通过倒 扣装置连接拉动定位环 12轴向移动， 定位环 12轴向移动过程中推动钻卡 拔片 5、 止转上板 11、 钻卡 10移动， 同时压缩钻卡弹簧 7， 这时插入建工 钻头或拉出建工钻头均可推动短圓柱 13向外侧径向移动，实现取出或插入 钻头的目的， 当钻头插入后松开卡套 6， 由于弹簧推力的作用可使钻卡 10 产生轴向回复移动， 钻卡 10在移动的过程中推压短圓柱 13， 使短圓柱 13 下滑卡入钻头自锁槽， 实现机构的整体回复， 如图 5所示实现钻头的凿功 能锁定。
如图 5所示当钻夹头实现凿功能锁定后夹爪 16应处于松开位置，使钻 头实现轴向滑动位移， 在此过程中因电动工具本身运作过程中的震动， 松 开的夹爪 16有可能因为震动使控制夹爪 16的螺纹产生位移， 导致夹爪 16 问题的方法是： 通过图 5中钻夹体组件 3、 止转下板 4、 钻卡拔片 5、 止转 上板 11所形成的机构即所述的反扣自锁机构， 实现锁紧夹爪 16自锁不移 动的功能。该功能如下所述： 止转下板 4与钻夹体组件 3中连接套 14焊接 在一起，并且止转下板 4有若干个自锁槽可供止转上板 11的自锁扣卡住实 现自锁功能； 具体的运动过程是： 在三爪伸缩机构松开夹持钻头后， 有可 能止转上板 11中的三个自锁扣未卡入止转下板 4中，这时通过手动旋转定 位环 12带动钻卡拨片 5周向运动，这时通过钻卡拨片 5上的三个小凸起卡 入止转上板 11三个孔中， 使止转上板 11产生轴向位移， 从而使自锁扣扣 入止转下板 4自锁槽中， 实现反扣自锁功能。
图 5所示， 直柄钻头的锁合方式是： 通过拉动卡套 6旋转一个角度退 锁紧控制盘 15锁紧直柄钻头， 同时回复 6自锁装置， 防止钻头松脱。
锁合钻头的大小可以通过调整钻夹体组件 3的尺寸来实现更大规格钻 头的锁紧使用要求。

Claims

权 利 要 求
1. 一种建工钻头与直柄钻头一体互换锁合钻夹头，包括有直柄钻头夹 爪锁合机构， 建工钻头锁合机构， 夹爪自锁机构， 钻夹体组件与夹爪锁紧 控制盘形成夹爪伸缩锁合机构； 其特征在于： 卡套（6)、 与卡套扣合的定 位环 （12)， 定位环 （12) 内侧依次设置的钻卡拔片 （5)、 钻卡 （10)、 钻 卡弹簧（ 7 )， 及钻卡（ 10 )径向限位的短圓柱（ 13 )构成凿锁定锁合机构； 止转下板（4)、 止转上板（11)和钻夹体组件 （3)构成夹爪自锁机构。
2.根据权利要求 1所述的建工钻头与直柄钻头一体互换锁合钻夹头， 其特征在于： 钻夹体组件（3)中有连接套（14)， 止转下板（4)与连接套 (14)焊接在一起， 并且止转下板（ 4 )有若干个自锁槽， 与止转下板（ 4 ) 的自锁槽对应止转上板（ 11 )有自锁扣。
3.根据权利要求 2所述的建工钻头与直柄钻头一体互换锁合钻夹头， 其特征在于： 止转下板（ 4 )的自锁槽周向连续设置， 止转上板（ 11 )的自 锁扣周向均匀设置 2至 4个， 位置与止转下板（4) 的自锁槽对应。
4.根据权利要求 1 所述的建工钻头与直柄钻头一体互换锁合钻夹头， 其特征在于： 定位环 （12)与钻卡拨片 （5)周向连动， 钻卡拨片 （5)上 有若干个小凸起卡入止转上板（11)对应的孔中。
5.根据权利要求 1 所述的建工钻头与直柄钻头一体互换锁合钻夹头， 其特征在于： 钻夹头的端部还有防尘机构， 孔用弹性挡圈（1)、 防尘刷（2) 构成防尘机构。
PCT/CN2014/079461 2013-06-17 2014-06-09 建工钻头与直柄钻头一体互换锁合钻夹头 WO2014201955A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14813877.9A EP3012072A4 (en) 2013-06-17 2014-06-09 Exchangeable-locking drill chuck integrating drill for building engineering with straight shank drill

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201320351244.5 2013-06-17
CN201310242983.5A CN103264374B (zh) 2013-06-17 2013-06-17 建工钻头与直柄钻头一体互换锁合钻夹头
CN 201320351244 CN203357411U (zh) 2013-06-17 2013-06-17 建工钻头与直柄钻头一体互换锁合钻夹头
CN201310242983.5 2013-06-17

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1149850A (zh) * 1994-06-07 1997-05-14 罗伯特-博希股份公司 用于手持式钻孔机尤其用于冲击钻机的工具夹以及带工具夹的手持式钻孔机
US20020089127A1 (en) * 2001-01-11 2002-07-11 Rohm Gmbh Lockable hammer-drill chuck
CN1535782A (zh) * 2003-04-04 2004-10-13 ���ء����߸� 快速夹套
CN1868641A (zh) * 2005-02-22 2006-11-29 罗伯特·博世有限公司 钻卡头和具有一个钻卡头的手操作式工具机
CN201283566Y (zh) * 2008-11-06 2009-08-05 永康市鲁班工具厂 多功能电锤
CN103264374A (zh) * 2013-06-17 2013-08-28 浙江海王电器有限公司 建工钻头与直柄钻头一体互换锁合钻夹头
CN203357411U (zh) * 2013-06-17 2013-12-25 浙江海王电器有限公司 建工钻头与直柄钻头一体互换锁合钻夹头

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3628798A1 (de) * 1986-08-25 1988-03-03 Hilti Ag Spannfutter fuer ein handbohrgeraet
DE4104131A1 (de) * 1990-05-08 1991-11-14 Bosch Gmbh Robert Handbohrmaschine
DE4328358A1 (de) * 1993-08-24 1995-03-02 Bosch Gmbh Robert Handbohrmaschine, insbesondere Bohrhammer
DE4419825A1 (de) * 1994-06-07 1995-12-14 Bosch Gmbh Robert Handbohrmaschine, insbesondere Bohrhammer und deren Werkzeughalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1149850A (zh) * 1994-06-07 1997-05-14 罗伯特-博希股份公司 用于手持式钻孔机尤其用于冲击钻机的工具夹以及带工具夹的手持式钻孔机
US20020089127A1 (en) * 2001-01-11 2002-07-11 Rohm Gmbh Lockable hammer-drill chuck
CN1535782A (zh) * 2003-04-04 2004-10-13 ���ء����߸� 快速夹套
CN1868641A (zh) * 2005-02-22 2006-11-29 罗伯特·博世有限公司 钻卡头和具有一个钻卡头的手操作式工具机
CN201283566Y (zh) * 2008-11-06 2009-08-05 永康市鲁班工具厂 多功能电锤
CN103264374A (zh) * 2013-06-17 2013-08-28 浙江海王电器有限公司 建工钻头与直柄钻头一体互换锁合钻夹头
CN203357411U (zh) * 2013-06-17 2013-12-25 浙江海王电器有限公司 建工钻头与直柄钻头一体互换锁合钻夹头

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