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CN1071175C - Tool chuck for hand tool machine - Google Patents

Tool chuck for hand tool machine Download PDF

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Publication number
CN1071175C
CN1071175C CN 96103675 CN96103675A CN1071175C CN 1071175 C CN1071175 C CN 1071175C CN 96103675 CN96103675 CN 96103675 CN 96103675 A CN96103675 A CN 96103675A CN 1071175 C CN1071175 C CN 1071175C
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CN
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Prior art keywords
tool
chuck
hand
machine
tool chuck
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CN 96103675
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Chinese (zh)
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CN1160622A (en )
Inventor
W·莱比坦茨
O·包曼
R·米勒
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罗伯特-博希股份公司
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Abstract

工具夹设有一个防尘罩(14),它借助于一个支承(21)可相对于工具夹(12)的基体(15)转动地支承着。 Tool holder is provided with a dust cover (14), which by means of a support (21) with respect to the tool holder (12) of the base body (15) rotatably supported. 支承(21)由两个盘构成,一个是增强盘(24)和一个是固定盘(27),它们通过一个相对于工具夹轴向固定的卡圈(26)互相隔开。 A support (21) consists of two disks, it is a reinforcing disk (24) and a fixed plate (27) which are spaced apart from each other with respect to the tool holder axially fixed collar (26) through a. 增强盘和固定盘不可相对转动地装在防尘罩内,并与工具夹之间具有运动间隙。 Enhanced and stationary discs rotationally mounted within the dust cover, and movement between the tool holder having a gap. 支承防止钻孔时防尘罩与壁面相碰而被磨损,或在壁上产生压力。 Support prevents drilling dust cover is worn collide with the wall surface, or a pressure on the wall. 本发明的工具夹可用于钻孔或冲击式钻孔机和手提凿岩机或冲击锤。 The tool holder according to the present invention may be used for drilling or percussion drilling machine and rock drill or a hand-held hammer.

Description

用于手工工具机的工具夹 Machine tools for hand tools folder

本发明涉及用于手工工具机的工具夹,尤其用于钻孔或冲击式钻孔机以及手提凿岩机或冲击锤。 The present invention relates to a machine tool for clamping a hand tool, in particular for drilling or percussion drilling machine and rock drill or a hand-held hammer.

已知这类工具夹(EP548702A1),它设计为带卡爪的钻夹头,以设有一个防尘罩,用以防止钻屑侵入。 Such known tool holder (EP548702A1), which is designed as a drill chuck with jaws, to a dust cover provided for preventing the intrusion of cuttings. 防尘罩通过一个向内突出的环形凸边,摩擦连接地固定在工具夹钻夹头上的一个孔中。 A dust cover by inwardly projecting annular flange, a frictional connection is fixed in a hole in the toolholder head drill chuck. 在钻孔时防尘罩随钻夹头旋转。 During drilling with the drill chuck rotating dust cap. 若防尘罩与墙壁表面接触时,防尘罩会损伤墙壁,或至少会在壁上造成压力。 If the dust cover in contact with the wall surface, the dust cover will damage the wall, or at least cause stress on the wall. 在这种情况下,防尘罩外侧和其在凸边区的内侧被磨损和损坏。 In this case, the dust cover which is worn outside, and inside the projecting border and damage.

此外,市场上现有的工具夹设有防尘罩,此防尘罩借助于环形固定盘固定在工具夹的空心圆柱形钻夹头上。 Further, the tool holder on the market is provided with a dust cover, the dust cover is fixed an annular plate fixed to the hollow cylindrical tool holder by means of a drill chuck. 固定盘一方面沿轴向靠在钻夹头体的挡边上,另一方面借助于一个卡圈防止其轴向移动。 Fixed disk on the one hand axially against the drill chuck body wall, on the other hand by means of a collar prevent axial movement. 在与壁面接触时,此与钻夹头体一起旋转的防尘罩受到制动。 Upon contact with the wall surface, the drill chuck rotates together with the dust cover member is braked. 于是,防尘罩可能沿周向相对于钻夹头转动。 Then, the dust cover may be rotated relative to the drill chuck circumferential direction. 当然,在这种情况下由于支承的类型和方式,因而不能排除与卡圈摩擦接触,并尤其在有径向负荷的情况下与钻夹头体发生摩擦接触,所以,对于这种已知的防尘罩,在与壁面接触时也会带来不希望有的磨损。 Of course, in this case due to the type and supported and thus can not be excluded frictional contact with the collar, and in particular with a radial frictional contact under load conditions the drill chuck body occurs, so, for this known dust cover, when in contact with the wall will bring undesirable wear.

本发明的目的是防止工具夹的防尘罩与壁面接触时的磨损。 Object of the present invention is to prevent wear of the dust cover when the tool holder is in contact with the wall surface.

本发明提供一种用于手工工具机、尤其是用于钻孔或冲击式钻孔机和手提凿岩机或冲击锤的工具夹,它有一个带安装孔的基体,孔中可装入工具并可套上一个防尘罩,借以防止灰尘、钻屑、水分等侵入,其特征为:防尘罩借助于一个支承可相对于工具夹旋转地装在此工具夹上,此支承至少有两个盘,它们具有径向运动方向间隙并可转动地装在工具夹上,以及通过一个相对此工具夹轴向固定的卡圈彼此分开。 The present invention provides a hand tool, in particular a drilling or percussion drilling tool and machine Jackhammer for clamping or percussion hammer, which has a base with a mounting hole, the hole can be loaded into the tool and put a dust cover, thereby preventing dust, cuttings, moisture intrusion, wherein: the dust cover by means of a bearing with respect to the tool holder rotatably mounted on this tool holder, this plate is supported at least two they have a radial movement direction of the gap and rotatably mounted on the tool holder, and by a clamp axially fixed relative to the tool collar separated from each other. 相比之下,按本发明的工具夹的优点在于,可避免发生例如在钻孔时因与壁面接触而引起防尘罩不应有的磨损。 In contrast, the advantages of the tool according to the present invention that the clip can be avoided for example during drilling due to contact with the wall surface of the dust cover to cause undue wear.

在进一步有利结构中,由于借助于固定盘、增强盘和在它们之间的卡圈来支承防尘罩,从而保证了工具夹是一种紧凑的结构方式。 In a further advantageous arrangement, since the means of the fixing plate, and the reinforcing plate is supported on the dust cover collar therebetween, the tool holder thus ensuring a compact construction. 采用向内突起的凸边,可以使防尘罩可靠地、轴向不能移动地固持在固定盘上。 Using convex inwardly projecting edge, the dust cover can be reliably, axially immovably on the fixed holding plate. 凸边上的斜面使防尘罩易于装配。 Bevel edge so that the convex dust cover easily assembled.

本发明的实施例表示在附图中,并在下面的说明中进一步介绍。 Embodiments of the invention are shown in the drawings and further described in the following description. 图1表示带工具夹的冲击钻的视图,以及,图2是通过按本发明设计的工具夹的局部剖面图。 1 shows the impact of the drilling tool holder with a view, and, FIG. 2 is a partial cross-sectional view through the tool according to the present invention is designed clip.

图1中用10表示的作为一种手工工具机举例的冲击钻有一个外壳11。 1 as an example of the impact of hand tool 10 represented by a drilled housing 11. 冲击钻10具有一个工具夹12,它与一个图中未进一步表示的旋转驱动轴在工具一侧的端部相连,并可通过此驱动轴驱动旋转。 Impact drill 10 having a tool holder 12, which is connected to an end portion of a rotation that is not further shown driving shaft side of the tool, and through the rotation of this drive shaft. 工具13可装在工具夹12内。 Tool 13 may be mounted in the tool holder 12. 为了防尘、钻屑、水分等,工具夹12设有一个防尘罩14,它扣罩在工具夹12的前部。 For dust, cuttings, moisture and the like, the tool holder 12 is provided with a dust cover 14, which covers the front portion 12 of the fastener in the tool holder.

图2详细表示了工具夹12。 Figure 2 shows a tool holder 12 in detail. 此工具夹12有一个基体15,它形成了一个在中央的用于工具13沿轴向延伸的安装孔16。 This tool holder 12 has a base 16 15, it forms a mounting aperture extending in the central axial direction of the tool 13 is used. 安装孔16在工具一端被防尘罩14所覆盖。 The tool attachment hole 16 in the end of the dust cover 14 is covered. 在举例的情况下,工具夹12设计为已知的组合式钻夹头,它除了安装用于冲击作业或冲击式凿岩作业的带槽轴的工具外(图2中未表示),还具有一个用于加工光孔圆轴工具的爪式卡头。 In the case of the example, the tool holder 12 is designed to known modular drill chuck, in addition to its impact tool mounting operation or for impact drilling operations slotted shaft (not shown in FIG. 2), further having jaw chuck for machining a hole circle optical axis of the tool. 此外,此爪式卡头配有三个卡爪17,图2中表示了其中的一个。 In addition, the jaw chuck with three jaws 17, FIG. 2 shows one of them. 装在基体15斜孔中的卡爪17,借助于一个调整环18,可沿轴向并因而也可沿径向移动,调整环18与卡爪17建立传动联系。 Oblique bore 15 is mounted in the base jaw 17, by means of an adjustment ring 18, and thus can be axially moved radially, the pawl 18 and the adjustment ring 17 to establish a transmission link. 调整环18的操纵通过操纵套筒19来进行,此操纵套筒19同心地围绕着带调整环18的工具夹12。 Actuating the adjustment ring 18 is performed by the operating sleeve 19, the actuating sleeve 19 concentrically surrounds the ring 18 with the adjustment tool clamp 12. 操纵套筒19可相对于基体15转动地支承着,并与调整环18传扭连接。 Actuating sleeve 19 relative to the base 15 rotatably supported member, and the adjustment ring 18 is connected to the torsion mass.

防尘罩14装在基体15工具侧的端部20上。 Dust cover mounted on the upper end portion 14 of the base body 15 of the tool 20. 在这种情况下,防尘罩14的固定通过支承21进行,支承21保证防尘罩14相对于工具夹12的可转动性,在举例的情况下是相对于工具夹12的基体15的可转动性。 In this case, the dust cover 14 is fixed by a support 21, the support 21 to ensure that the dust cover 14 with respect to the rotatability of the tool holder 12, for example in the case of the toolholder relative to the base body 12 may be 15 of rotation. 制有两个沿轴向隔离开距离的唇边22和在两者之间沿径向的通孔23的防尘罩14,设有一个环形的增强盘24,它承受作用在防尘罩14上沿轴向向后的负荷。 Spacer formed with two axially apart from the lip and the dust cover 22 through holes 23 therebetween in the radial direction 14, is provided with an annular reinforcing plate 24, which force acting on the dust cover 14 the axially rearward load. 增强盘24支靠在一个装入基体15的环形槽25中的卡圈26上。 A reinforcing plate 24 is loaded against the collar 15 of the annular groove 25 in the base body 26 on. 此增强盘24压入防尘罩14的一个环槽30中。 This reinforcing plate 24 is pressed into the ring groove 30 a dust cover 14. 它可以在制造防尘罩14时便已经通过在压力下从外部注入与之连接在一起。 It can be manufactured by the dust cover 14 is already injected under pressure from the outside connected thereto.

此外,在工具夹12上还推上一个同样为环形的固定盘27,固定盘27沿轴向装在卡圈26后面。 Further, the tool holder 12 further onto a likewise annular fixed plate 27, fixed disk 27 is mounted axially behind the collar 26. 增强盘24与固定盘27的大小大体相同。 24 is substantially the same size with the reinforcing plate 27 of the fixed plate. 防尘罩14通过一个向内突起的环形凸边29从后面扣住固定盘27,从而固定防尘罩14,使之不会在基体15上沿轴向向前移动。 A dust cover 14 by an annular projection projecting inwardly from the rear edge 29 fastened stationary disk 27, thereby fixing the dust cover 14, so as not in the base body 15 is moved axially forwardly. 增强盘24和固定盘27摩擦连接地装在防尘罩14中,并具有运动间隙地座落基体15上,所以它们并也包括防尘罩14可以低摩擦地相对于基体15转动,增强盘24、卡圈26和固定盘27互相只有很小的轴向间隙,并与此同时在防尘罩14与基体15之间构成了一个迷宫密封装置。 Reinforcing plate 24 and the fixed disc 27 frictionally mounted in the dust cover 14, and has a motion gap located on the base body 15, and they also include a dust cover 14 may be a low friction with respect to the rotary body 15, reinforcing plate 24, the collar 26 and the fixed disk 27 only a small axial clearance to each other, and at the same time between 14 and 15 constituting a labyrinth seal matrix dust cap. 防尘罩在其外缘28处形成一个密封凸耳,旋转时它使该处的钻屑受沿径向向外甩的离心力,并覆盖住防尘罩14和操纵套筒19之间留有的间隙。 A dust cover seal lug formed at an outer edge 28, which allows rotation of the drill cuttings when there thrown radially outwardly by the centrifugal force, the dust cover and covers between 19 and 14 and the actuating sleeve remains Clearance.

为了装配防尘罩14,首先将固定盘27推到基体15上。 To assemble the dust cover 14, the fixing plate 27 is first pushed onto the base body 15. 接着,将卡圈26卡装在槽25中,由此将固定盘27在基体15上沿轴向保险。 Subsequently, the collar 26 mounted in the card slot 25, thereby fixing the safety plate 27 in the axial direction on a substrate 15. 然后,将设有增强盘24用弹性材料制的防尘罩14装在基体15上,并以其向内突起的凸边29沿轴向越过固定盘27,为此,防尘罩14制有一个锥形斜面31,在将防尘罩14推上基体15时,此斜面31使防尘罩14在固定盘27上定心。 Then, the reinforcing plate 24 is provided with a dust cover 14 made of elastic material mounted on the substrate 15, and its protruding edge 29 projecting inwardly beyond the axially fixed disc 27, therefore, the dust cover 14 formed with a tapered ramp 31, the dust cover 14 onto the base 15, the dust cover 14 so that the inclined surface 31 centered on the fixed disk 27. 于是,向内突的凸边29沿径向扣接在固定盘27的后面,从而使防尘罩14沿轴向不可移动地固定在基体15上。 Thus, the inwardly projecting radial flange 29 snap behind the fixed plate 27, so that the dust cover 14 is axially immovably fixed to the base body 15. 在安装防尘罩14时,操纵套筒19务必不被移动。 When mounting the dust cover 14, actuating sleeve 19 is moved not sure.

通过防尘罩14经由盘24、27的定心、导引和保险,可以获得一种短的结构型式。 Dust cover 14 through 24 and 27 through the centering disc, the guide and insurance, possible to obtain a short type of construction. 由此还防止了防尘罩14倾倒,所以可以始终避免防尘罩14和工具夹12的直接接触。 Thereby also preventing the dumping of dust cover 14, so you can always avoid direct contact with the dust cover 14 and 12 of the tool holder.

本发明不限于所表示的实施例。 The present invention is not limited to the embodiments shown. 重要之点在于,防尘罩14可相对于工具夹12转动地支承着。 The important point is that the dust cover 14 relative to the tool holder 12 may be rotatably supported. 因此,防尘罩例如也可以可旋转地支承在操纵套筒19上,为此可相应地进行设计。 Thus, for example, the dust cover may be rotatably supported on the actuating sleeve 19, may accordingly be designed for this purpose. 当然也可以设滚动支承,以代替上述滑动支承。 Of course, the rolling bearing may be provided in place of the sliding bearing. 本发明原则上可应用于各种手工工具机在这种手工工具机中,工具夹的安装孔相对于其中所装入的工具,应借助于防尘罩防止灰尘等的侵入。 In principle, the present invention can be applied to various hand tools such manual machine tool, the mounting hole of the tool holder relative to the tool mounted therein, by means of a dust cover should prevent the intrusion of dust and the like. 因此,它尤其还可有利地应用于单纯的打孔机中。 Thus, in particular, it may advantageously be applied in a simple punch.

Claims (8)

  1. 1. 1. 用于手工工具机的工具夹,它有一个带安装孔(16)的基体(15),孔(16)中可装入工具(13)并可套上一个防尘罩(14),借以防止灰尘、钻屑、水分等侵入,其特征为:防尘罩(14)借助于一个支承(21)可相对于工具夹(12)旋转地装在此工具夹(12)上,此支承(21)至少有两个盘(24,27),它们具有径向运动间隙并可转动地装在工具夹(12)上,以及通过一个相对此工具夹(12)轴向固定的卡圈(26)彼此分开。 Tool for manual tool clamp, which has a belt mounting hole (16) of the base body (15), the hole (16) can be loaded in the tool (13) and put a dust cover (14), thereby preventing dust, cuttings, moisture intrusion, wherein: the dust cover (14) by means of a support (21) with respect to the tool holder (12) rotatably mounted in the tool holder (12), this support (21 ) at least two discs (24, 27), which have a radial motion clearance and rotatably mounted on the tool holder (12), and by a relative tool holder (12) axially fixed collar (26) separated from each other.
  2. 2. 2. 按照权利要求1所述之工具夹,其特征为:支承(21)有一个固定盘(27)和一个增强盘(24),在装上防尘罩(14)时,它们装在此防尘罩(14)内并且不能相对转动。 The tool according to claim 1 of the clip, wherein: when the support (21) has a fixed plate (27) and a reinforcing plate (24), the dust cover (14) mounted on, they are mounted on this dust the cover (14) and rotationally.
  3. 3. 3. 按照权利要求2所述之工具夹,其特征为:支承(21)装在工具夹(12)的基体(15)上。 The tool according to claim 2 of the clip, wherein: the support (21) mounted on the tool holder (12) of the base body (15).
  4. 4. 4. 按照权利要求2或3所述之工具夹,其特征为:防尘罩(14)通过一个向内突起的环形凸边(29),沿轴向刚性连接地从后面扣住固定盘(27)。 The tool 23 or of the clip as claimed in claim wherein: the dust cover (14) by an inwardly projecting annular flange (29), rigidly connected axially fastened from behind the fixed plate (27) .
  5. 5. 5. 按照权利要求4所述之工具夹,其特征为:防尘罩(14)在其凸边(29)上有一个斜面(31)。 The tool according to claim 4 of the clip, wherein: the dust cover (14) has a ramp (31) (29) at its rim.
  6. 6. 6. 按照权利要求2至5之一所述之工具夹,其特征为:增强盘(24)、卡圈(26)和固定盘(27)互相之间具有小量的轴向间隙。 Tool according to claim 2 to 5 of one clip, wherein: reinforcing plate (24), the collar (26) and the fixed plate (27) each having a small axial gap between.
  7. 7. 7. 按照权利要求2至6之一所述之工具夹,其特征为:增强盘(24)和固定盘(27)的大小基本相同。 Tool according to claim 2 to one of the clamp 6, wherein: the size of the reinforcing plate (24) and the fixed plate (27) is substantially the same.
  8. 8. 8. 按照前述诸权利要求之一所述之工具夹,其特征为:防尘罩(14)的外缘(28)沿径向向外凸耳状扩大。 All according to the preceding claim according to one of tool holder, wherein: the dust cover (14) outer edge (28) to expand outwardly radially projecting lug.
CN 96103675 1996-03-26 1996-03-26 Tool chuck for hand tool machine CN1071175C (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293973C (en) * 2002-06-12 2007-01-10 罗姆股份有限公司 Drill-press draw-in gear

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5534940B2 (en) * 2010-05-25 2014-07-02 株式会社マキタ Impact tool
DE102011075858A1 (en) * 2011-05-16 2012-11-22 Robert Bosch Gmbh Tool holder for portable machine tool, particular hand tool e.g. hammer drill, has actuating medium, which allows suppression of limiting range of motion of one fixing unit
US20140174777A1 (en) * 2012-12-25 2014-06-26 Makita Corporation Impact tool
CN104626071B (en) * 2015-03-02 2016-03-30 朱金凤 Hand drill dust ring

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2042406U (en) * 1988-05-14 1989-08-09 寿宏勋 Dust collector for impact electric drill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2042406U (en) * 1988-05-14 1989-08-09 寿宏勋 Dust collector for impact electric drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1293973C (en) * 2002-06-12 2007-01-10 罗姆股份有限公司 Drill-press draw-in gear

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