CN103213104B - Hand-held electric tool machine - Google Patents
Hand-held electric tool machine Download PDFInfo
- Publication number
- CN103213104B CN103213104B CN201310098724.XA CN201310098724A CN103213104B CN 103213104 B CN103213104 B CN 103213104B CN 201310098724 A CN201310098724 A CN 201310098724A CN 103213104 B CN103213104 B CN 103213104B
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- cam
- cam ring
- outside
- driving shaft
- power tool
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Abstract
The invention discloses a hand-held electric tool machine, which comprises a tool body, a tool head, an inner pressing plate, an outer pressing plate, a cutting disc and a drive shaft, wherein the cutting disc is arranged between the inner pressing plate and the outer pressing plate; the drive shaft is used for driving the cutting disc to swing at a high frequency; an inner cam which can axially move but cannot circumferentially move and an outer cam which can circumferentially rotate but cannot axially move are sheathed outside the drive shaft; and moreover, the inner cam and the outer cam are respectively provided with a structure capable of selectively enabling the inner cam to move outwards or inwards along the axial direction when the outer cam circumferentially rotates. When the cutting disc is replaced, the inner cam can be driven to move inwards along the axial direction as long as the outer cam is rotated, and further, the inner pressing plate is driven to move inwards along the axial direction to enable the cutting disc to be separated from limitations of the inner pressing plate and the outer pressing plate. No parts need to be removed from the tool machine, and therefore, not only is the cutting disc simple and easy to replace but also loss of the parts are effectively prevented.
Description
Technical field
The present invention relates to a kind of electric hand-held power tool.
Background technology
The electric hand-held power tool (Multi Role Aircraft) that market exists, its head position is removably provided with can the cutting blade that swings by a small margin of high frequency.This toolroom machine in actual applications, the multiple-working modes such as the swing in high frequency by shown cutting blade realizes cutting, cut, mill.But the cutting blade on existing Multi Role Aircraft, when clamping, needs to unload completely the correlated parts (if publication number is the patent of WO200604276B) removed for fixing cutting blade.Because the toolroom machine of this frame mode is when cutting blade is changed, needs correlated parts to disassemble completely, not only waste time and energy, and easily cause the generation being removed part Loss.
Summary of the invention
The present invention seeks to: for the problems referred to above, the invention provides a kind of electric hand-held power tool, on this toolroom machine cutting blade more change jobs very simple, and when cutting blade is changed, parts on toolroom machine, without the need to disassembling, can avoid the loss of parts.
Technical scheme of the present invention is: a kind of electric hand-held power tool, comprise fuselage, head and cutting blade, described head comprises head capsule, the driving shaft for driving described cutting blade swing in high frequency is provided with in this head capsule, the outside of described driving shaft is arranged with that can move axially a, part and stretches out clip plate outside described head capsule, the end winding support of described driving shaft is connected with an outer plate be positioned at outside described clip plate, and described cutting blade is fixed between described clip plate and outer plate
The inner periphery wall of described clip plate is shaped with a circle peripheral flange, this peripheral flange axis outside be furnished with one be enclosed within outside described clip plate, can move axially and can not circumference rotate cam ring, axis outside near described cam ring be furnished with one be enclosed within outside described driving shaft, can circumference rotate and the external cam that can not move axially
The axial disposed inboard of described cam ring has a stage clip be enclosed within outside described driving shaft, and the outboard end of this stage clip is against on described cam ring by packing ring, and the medial extremity of this stage clip is relative with described head capsule fixing,
Be provided with the working spring be enclosed within outside driving shaft between described clip plate and driving shaft, the outboard end of this working spring is against on described clip plate, and the medial extremity of this working spring is against on described driving shaft,
And described cam ring and external cam have and optionally to make described cam ring when described external cam circumference is rotated vertically outwards or the structure moved inward.
What described cam ring and external cam had optionally make when external cam circumference is rotated described cam ring vertically outwards or the structure moved inward be achieved in that described cam ring comprises the cam ring body of annular, the axis outside of this cam ring body is formed with several uniform intervals distribute, axially extended first wedge shape boss; Described external cam comprises the cam ring body of annular, and the axis inner side of this external cam body is formed with the second that several uniform intervals distribute, axially extended, corresponding with described first wedge shape boss wedge shape boss.
Described cam ring body is formed with altogether a described first wedge shape boss, described external cam body is formed with altogether a described second wedge shape boss.
Described head capsule is shaped with three and is trapped among this external guiding straight-line groove of cam ring, the periphery wall of described cam ring body is provided with three and stretches in described guiding straight-line groove and the fin that can lead in axial sliding in described guiding straight-line groove.
Described head capsule offers a long arc-shaped holes mutually concordant with described external cam body, the periphery wall of described external cam body is fixedly installed one is stretched out described head capsule outside spanner through described long arc-shaped holes.
Described spanner is fixed by screws on the periphery wall of described external cam body.
Described head capsule is equipped with the plug screw being positioned at the axial outside of described external cam, between described plug screw and external cam, is provided with the thrust bearing preventing external cam from moving axially.
Described outer plate interfixes in the mode be threaded with described driving shaft.
Described cutting blade is shaped with installation gap and at least one locating hole of a U-shaped, described outer plate is shaped with the positioning convex matched with described locating hole.
Advantage of the present invention is: electric hand-held power tool of the present invention, and in cutting blade Renewal process, toolroom machine needs to disassemble without any part, and not only cutting blade is changed simple, and efficiently avoid the generation of parts Loss.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 be in the embodiment of the present invention electric hand-held power tool assembled after structural representation;
Fig. 2 is the explosive view of electric hand-held power tool in the embodiment of the present invention;
Fig. 3 is the partial structurtes schematic diagram of electric hand-held power tool in the embodiment of the present invention;
Fig. 4 is that the A-A of Fig. 3 is to sectional view;
Fig. 5 be in the embodiment of the present invention electric hand-held power tool assembled after sectional view;
Fig. 6 is the sectional view of electric hand-held power tool when changing cutting blade in the embodiment of the present invention;
Fig. 7 is the structural representation of external cam in the embodiment of the present invention;
Fig. 8 is the structural representation of cam ring in the embodiment of the present invention;
Wherein: 1-outer plate, 101-positioning convex, 2-cutting blade, 201-installation gap, 202-locating hole, 3-clip plate, 301-peripheral flange, 5-working spring, 6-plug screw, 7-thrust bearing, 8-external cam, 801-external cam body, 802-second wedge shape boss, 9-cam ring, 901-cam ring body, 902-first wedge shape boss, 903-leads fin, 10-packing ring, 11-back-up ring, 12-driving shaft, 13-bearing, 14-stage clip, 15-head capsule, 1501-long arc-shaped holes, 1502-leads straight-line groove, 16-screw, 17-spanner.
Detailed description of the invention
As shown in Figure 1, Figure 2 with shown in Fig. 5, the electric hand-held power tool of the present embodiment, comprise fuselage (not shown), head and cutting blade 2, head comprises head capsule 15 (i.e. handpiece case), be provided with in this head capsule 15 for driving described cutting blade 2 swing in high frequency that (amplitude of fluctuation is generally 3 °, frequency reaches up to ten thousand time per second) driving shaft 12, the outer surface cover of driving shaft 12 has a bearing 13 be fixed in head capsule 15, when this bearing 13 can prevent driving shaft 12 from working, axial dipole field occurs.
The outside of described driving shaft 12 is also overlapped a coaxially arranged with it clip plate 3 (not interfixing) therebetween, and this clip plate 3 part stretches out the outside of head capsule 15, and clip plate 3 can do axial movement relative to driving shaft 12.
The end of described driving shaft 12 is fixed with an outer plate 1 be positioned at outside described clip plate 3 in the mode be threaded.Described cutting blade 2 is fixed between clip plate 3 and outer plate 1.
The inner periphery wall of described clip plate 3 is shaped with a circle peripheral flange 301, the axis outside of this peripheral flange 301 be furnished with one be enclosed within outside described clip plate 3, to move axially and can not the cam ring 9 that rotates of circumference, the axis outside near described cam ring 9 be furnished with one be enclosed within outside described driving shaft 12, can circumference rotation and the external cam 8 that can not move axially.And described cam ring 9 and external cam 8 have and optionally to make described cam ring 9 when described external cam 8 circumference is rotated vertically outwards or the structure moved inward, this structure is specially: as shown in Fig. 5, Fig. 7 and Fig. 8, described cam ring 9 comprises the cam ring body 901 of annular, and the axis outside of this cam ring body 901 is formed with 3 uniform intervals distribute, axially extended first wedge shape boss 902.Described external cam 8 comprises the cam ring body 801 of annular, and the axis inner side of this external cam body 801 is formed with the second that 3 uniform intervals distribute, axially extended, corresponding with described first wedge shape boss 902 wedge shape boss 802.
The axial disposed inboard of described cam ring 9 has a stage clip 14 be enclosed within outside described driving shaft 12, the outboard end of this stage clip 14 is against on described cam ring 9 by packing ring 10, the medial extremity of this stage clip 14 is relative with described head capsule 15 fixing (be specially: fix a back-up ring 11 in head capsule, the medial extremity of stage clip 14 is against on this back-up ring 11).
Be provided with the working spring 5 be enclosed within outside driving shaft 12 between described clip plate 3 and driving shaft 12, the outboard end of this working spring 5 is against on described clip plate 3, and the medial extremity of this working spring 5 is against on described driving shaft 12.
As shown in Figure 3 and Figure 4, described cam ring 9 can move axially and circumference can not rotate and be achieved in that described head capsule 15 is shaped with three guiding straight-line grooves 1502 be trapped among outside cam ring body 901, and the periphery wall of described cam ring body 901 is provided with three and stretches in described guiding straight-line groove 1502 and the fin 903 that can lead in axial sliding in described guiding straight-line groove 1502.
As shown in Figures 2 and 3, described head capsule 15 offers the long arc-shaped holes 1501 of mutually concordant with described external cam body 801 (axially mutually concordant), the periphery wall of described external cam body 801 is fixedly installed one is stretched out described head capsule 15 outside spanner 17 through described long arc-shaped holes 1501, this spanner 17 is fixed on the periphery wall of external cam body 801 by screw 16.During enforcement, user is by impelling external cam 8 that circumference rotation occurs to pulling of spanner 17.
Described cutting blade 2 is shaped with installation gap 201 and multiple locating hole 202 of a U-shaped, described outer plate 1 is shaped with the positioning convex 101 matched with described locating hole 202.
Described head capsule 15 is equipped with the plug screw 6 being positioned at the axial outside of described external cam 8, between described plug screw 6 and external cam 8, is provided with the thrust bearing 7 preventing external cam 8 from moving axially.
With reference to Fig. 5 and Fig. 6, existing by as follows for the exchonge step brief introduction of cutting blade on electric hand-held power tool in the present embodiment 2:
First, pulled the spanner 17 stretching out head capsule 15 by user, external cam 8 is rotated in a circumferential direction.External cam 8 is in rotary course, the second wedge shape boss 801 in external cam 8 forwards the position of the first wedge shape boss 902 on cam ring 9 gradually to, second wedge shape boss 801 inwardly compresses the first wedge shape boss 902 makes cam ring 9 that axially inside movement occur, the peripheral flange 301 of clip plate 3 the inner can be compressed when cam ring 9 inwardly moves axially, thus (now working spring 5 pressurized shortens, and its elastic potential energy increases to drive clip plate 3 that axially inside movement occurs again.And outer plate 1 is fixed on output shaft 12, its axial location is constant all the time), and then make to there is certain axial gap between outer plate 1 and clip plate 3, get final product the cutting blade 2 smooth taking off tool machine no longer needing use, the U-shaped installation gap 201 of the cutting blade 2 that need use is inserted in outside outer plate 1, and the locating hole 202 on the cutting blade 2 of use is aimed at the positioning convex 101 on outer plate 1.Afterwards, then pull spanner 17 in the other direction, drive external cam 8 to rotate in the other direction.In external cam 8 reverse rotation process, under the axial elastic force effect that stage clip 14 pairs of cam rings 9 are outside, the second wedge shape boss 801 in external cam 8 proceeds to the sunk part on cam ring 9 between adjacent two first wedge shape boss 902, and axially outside movement occurs cam ring 9.Just certain axial gap is there is between itself and the peripheral flange 301 of clip plate 3 the inner after cam ring 9 outwards moves axially, and all the time outside axial elastic force is applied with to clip plate due to working spring 5, there is certain axial gap between cam ring 9 and the peripheral flange 301 of clip plate 3 the inner after, working spring 5 must compress clip plate 3 and axially outside movement occur until the peripheral flange 301 on clip plate 3 contacts with cam ring 9 again.So just, be clipped between clip plate 3 and outer plate 1 by cutting blade 2, the location double wedge on outer plate 101 snaps in the locating hole 201 on cutting blade 2.
Therefore cutting blade 2, in Renewal process, this toolroom machine disassembles without any part (comprising inner-outer pressing plate) needs, therefore also just avoids the generation of parts Loss.
Certainly, above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (9)
1. an electric hand-held power tool, comprise fuselage, head and cutting blade (2), described head comprises head capsule (15), being provided with the driving shaft (12) for driving described cutting blade (2) swing in high frequency in this head capsule (15), it is characterized in that:
The outside of described driving shaft (12) is arranged with that can move axially a, part and stretches out described head capsule (15) clip plate outward (3), the end winding support of described driving shaft (12) is connected with the outer plate (1) that is positioned at described clip plate (3) outside, described cutting blade (2) is fixed between described clip plate (3) and outer plate (1)
The inner periphery wall of described clip plate (3) is shaped with a circle peripheral flange (301), this peripheral flange (301) axis outside be furnished with one be enclosed within described clip plate (3) outside, can move axially and can not circumference rotate cam ring (9), axis outside near described cam ring (9) is furnished with an external cam (8) that be enclosed within described driving shaft (12) outside, energy circumference is rotated and can not be moved axially
The axial disposed inboard of described cam ring (9) has a stage clip (14) being enclosed within described driving shaft (12) outside, the outboard end of this stage clip (14) is against on described cam ring (9) by packing ring (10), the medial extremity of this stage clip (14) is relative fixing with described head capsule (15)
The working spring (5) being enclosed within driving shaft (12) outside is provided with between described clip plate (3) and driving shaft (12), the outboard end of this working spring (5) is against on described clip plate (3), the medial extremity of this working spring (5) is against on described driving shaft (12)
And described cam ring (9) and external cam (8) have and optionally to make described cam ring (9) when described external cam (8) circumference is rotated vertically outwards or the structure moved inward.
2. electric hand-held power tool according to claim 1, it is characterized in that: what described cam ring (9) and external cam (8) had optionally make when external cam (8) circumference is rotated described cam ring (9) vertically outwards or the structure moved inward be achieved in that described cam ring (9) comprises the cam ring body (901) of annular, the axis outside of this cam ring body (901) is formed with several uniform intervals distribute, axially extended first wedge shape boss (902); Described external cam (8) comprises the cam ring body (801) of annular, and the axis inner side of this external cam body (801) is formed with the second that several uniform intervals distribute, axially extended, corresponding with described first wedge shape boss (902) wedge shape boss (802).
3. electric hand-held power tool according to claim 2, it is characterized in that: described cam ring body (901) is formed with altogether 3 described first wedge shape boss (902), described external cam body (801) is formed with altogether 3 described second wedge shape boss (802).
4. electric hand-held power tool according to claim 2, it is characterized in that: described head capsule (15) is shaped with three and is trapped among cam ring body (901) guiding straight-line groove (1502) outward, the periphery wall of described cam ring body (901) is provided with three and stretches in described guiding straight-line groove (1502) and the fin (903) that can lead in axial sliding in described guiding straight-line groove (1502).
5. electric hand-held power tool according to claim 2, it is characterized in that: described head capsule (15) offers a long arc-shaped holes (1501) mutually concordant with described external cam body (801), the periphery wall of described external cam body (801) is fixedly installed one and stretches out the outside spanner (17) of described head capsule (15) through described long arc-shaped holes (1501).
6. electric hand-held power tool according to claim 5, is characterized in that: described spanner (17) is fixed on the periphery wall of described external cam body (801) by screw (16).
7. electric hand-held power tool according to claim 1, it is characterized in that: described head capsule (15) is equipped with the plug screw (6) being positioned at the axial outside of described external cam (8), between described plug screw (6) and external cam (8), is provided with the thrust bearing (7) preventing external cam (8) from moving axially.
8. electric hand-held power tool according to claim 1, is characterized in that: described outer plate (1) interfixes in the mode be threaded with described driving shaft (12).
9. electric hand-held power tool according to claim 1, it is characterized in that: the installation gap (201) and at least one locating hole (202) that described cutting blade (2) are shaped with a U-shaped, described outer plate (1) is shaped with the positioning convex (101) matched with described locating hole (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098724.XA CN103213104B (en) | 2013-03-26 | 2013-03-26 | Hand-held electric tool machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310098724.XA CN103213104B (en) | 2013-03-26 | 2013-03-26 | Hand-held electric tool machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103213104A CN103213104A (en) | 2013-07-24 |
| CN103213104B true CN103213104B (en) | 2015-04-15 |
Family
ID=48811429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310098724.XA Expired - Fee Related CN103213104B (en) | 2013-03-26 | 2013-03-26 | Hand-held electric tool machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103213104B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722537B (en) * | 2013-12-17 | 2015-12-09 | 宁波汉浦工具有限公司 | multi-head electric tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004020982A1 (en) * | 2004-04-23 | 2005-11-17 | C. & E. Fein Gmbh | Powered hand tool with clamping device for a tool |
| DE102007055777A1 (en) * | 2007-12-12 | 2009-06-18 | Hilti Aktiengesellschaft | Hand tool with clamping nut |
| CN201702760U (en) * | 2010-04-21 | 2011-01-12 | 苏州宝时得电动工具有限公司 | Multifunctional machine and adapter thereof |
| US9186770B2 (en) * | 2010-04-29 | 2015-11-17 | Black & Decker Inc. | Oscillating tool attachment feature |
| CN201792324U (en) * | 2010-09-26 | 2011-04-13 | 南京德朔实业有限公司 | Handheld power tool with working element rapid clamping device |
| CN203245835U (en) * | 2013-03-26 | 2013-10-23 | 苏州伟泰克工具制造有限公司 | Hand-held electric tool machine |
-
2013
- 2013-03-26 CN CN201310098724.XA patent/CN103213104B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103213104A (en) | 2013-07-24 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Fangkun Inventor after: Kuai Song Inventor after: Xie Haijun Inventor after: Xue Feng Inventor before: Hu Fangkun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HU FANGKUN TO: HU FANGKUN KUAI SONG XIE HAIJUN XUE FENG |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20200326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |