CN104043861A - Working head and power tool - Google Patents
Working head and power tool Download PDFInfo
- Publication number
- CN104043861A CN104043861A CN201310084432.0A CN201310084432A CN104043861A CN 104043861 A CN104043861 A CN 104043861A CN 201310084432 A CN201310084432 A CN 201310084432A CN 104043861 A CN104043861 A CN 104043861A
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- CN
- China
- Prior art keywords
- lever
- take
- working head
- clutch
- power tool
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
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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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/12—Straight saw blades; Strap saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a working head. The working head comprises a mounting part, a sawtooth part and an end part which are sequentially arranged, wherein the sawtooth part is provided with a lengthwise row of sawteeth; the end part is far away from the mounting end; the mounting part is connected with a power tool; the end part is provided with a cutting edge; the cutting edge is capable of rotating around a rotation central line so as to form a cutting surface used for processing a workpiece. When the working head reciprocates, the sawtooth part reciprocates to process the workpiece; when the working head rotates, the end part rotates to process the workpiece, and thus one working head can reciprocates to process the workpiece and also can rotate to process the workpiece, so that the application range of the working head is greatly enlarged, and operations of users are facilitated. The invention also relates to the power tool for driving the working head.
Description
Technical field
The present invention relates to a kind of working head, relate in particular to a kind of exportable back and forth or the working head of the power tool rotatablely moving.
The invention still further relates to a kind of power tool that uses above-mentioned working head.
Background technology
The most frequently used power tool is roughly divided into two kinds, and a kind of is the power tool of take-off lever output reciprocating motion, and as reciprocating saw, sweep-saw etc., when the work of such power tool, thereby the saw blade of standard is connected with take-off lever saw blade reciprocating motion is cut workpiece; Another kind is that take-off lever is exported the power tool rotatablely moving, and as electric drill etc., when such power tool work, thereby the drill bit of standard is connected with take-off lever and bit is moved workpiece is punched.
Existing power tool can only make a kind of motion of take-off lever output conventionally, as the take-off lever of reciprocating saw only can output reciprocating motion; The take-off lever of electric drill only can be exported and rotatablely move; But operator completes a certain work, during as decorating house, often need the working head using multiple different power tool and match, often need to change different instruments, operate comparatively loaded down with trivial details.
For this reason, occurred a kind of power tool in prior art, its motor drives two take-off levers by transmission mechanism, one of them take-off lever output reciprocating motion, and the saw blade of standard is connected and gets final product cut workpiece with this take-off lever; Another take-off lever output rotatablely moves, and the working heads such as the drill bit of standard are connected with this take-off lever and can, to operations such as workpiece punch, export two kinds of motions thereby realized a power tool, have greatly widened the range of application of same power tool,
The different output movement of this power tool need to be provided by different take-off levers, makes the bulky of power tool, operation inconvenience; And the different working head of different action needs completes, operator, in the time of the different duty of conversion power tool, need to change different working heads frequently, and this has also brought certain inconvenience to operator.
Summary of the invention
For overcoming the defect of prior art, problem to be solved by this invention is to provide a kind of easy to operate working head and power tool, and the take-off lever of this power tool is exportable reciprocating motion both, again exportable rotatablely moving; Corresponding, the working head of this power tool can move back and forth processing work after being connected with this take-off lever, and rotatable motion processing work, has brought huge facility to operator again.
For addressing the above problem, technical scheme of the present invention is:
A kind of working head, described working head comprises in turn the installation portion that arranges, is provided with the sawtooth portion of lengthwise row sawtooth, end away from installation portion, described installation portion is for being connected with power tool, described end is provided with cutting edge, and described cutting edge rotates to form the cut surface for processing work around rotation centerline.
Preferably, described cut surface is taper seat.
Preferably, described cutting edge straight linear is extended.
Preferably, described cut surface comprises the face of cylinder.
Preferably, described cut surface comprises sphere.
Preferably, described cutting edge is at least two, and described at least two cutting edges circumferentially distribute with respect to described rotation centerline.
Preferably, the relatively described rotation centerline of described at least two cutting edges is uniformly distributed.
Preferably, in the definite plane of the line of cut forming at described sawtooth and described rotation centerline, the projection of described at least two cutting edges is intersected and intersection point is positioned on described rotation centerline.
Preferably, described cutting edge is two, and described two cutting edge antarafacials arrange.
Compared with prior art, when working head of the present invention moves back and forth, its sawtooth portion moves back and forth processing work; When this working head rotatablely moves, its end processing work that rotatablely moves, thus a working head can move back and forth processing work, and rotatable motion processing work again, has widened the range of application of this working head, person's easy to use operation greatly.
Another technical scheme of the present invention is:
A kind of power tool, comprise housing, be contained in the motor in described housing, the take-off lever being driven by transmission mechanism by described motor, described power tool also comprises the movable clutch connecting with transmission mechanism, described clutch can move between the two positions, makes described transmission mechanism drive described take-off lever reciprocating in primary importance; Make described transmission mechanism drive described take-off lever to rotate in the second place, described take-off lever is connected with aforementioned arbitrary working head, thereby drive described working head to move back and forth to make described sawtooth portion to process workpiece, or drive described working head to rotatablely move described end is processed workpiece.
Compared with prior art, the take-off lever of power tool of the present invention is exportable rotatablely moving both, and exportable reciprocating motion again has greatly been widened the range of application of this power tool and can not have been increased the volume of power tool, person's easy to use operation.Especially, the take-off lever of this power tool was with after not only reciprocally the working head of motion processing work but also rotatable motion processing work was connected, after operator only needs one-off that this working head is connected with the take-off lever of power tool, just can make working head back and forth or the processing work that rotatablely moves, bring huge facility to operator.
Brief description of the drawings
Below in conjunction with drawings and embodiments, the invention will be further described.
Fig. 1 is the power tool that provides of first embodiment of the invention and the three-dimensional exploded view of working head thereof;
Fig. 2 is the explosive view of the core section of the power tool shown in Fig. 1;
Fig. 3 is another explosive view of the core section of the power tool shown in Fig. 1;
Fig. 4 is the enlarged drawing of A part in Fig. 2.
Fig. 5 is the cutaway view of power tool core section shown in Fig. 1 and the upward view of operating parts, and wherein take-off lever output moves back and forth at a high speed;
Fig. 6 is the cutaway view of power tool core section shown in Fig. 1 and the upward view of operating parts, wherein take-off lever output low-speed rotation;
Fig. 7 is the cutaway view of power tool core section shown in Fig. 1 and the upward view of operating parts, wherein take-off lever output high speed rotary motion;
Fig. 8 is the partial sectional view of the power tool core section that provides of another embodiment of the present invention.
Fig. 9 is the front view of the working head that provides of embodiment of the present invention;
Figure 10 is the part stereogram of the working head shown in Fig. 9;
Figure 11 is another stereogram of the working head shown in Figure 10;
Wherein,
100 power tool 28 connectors 53 are changed conduit
2 housing 30 first longitudinal trough 54 first connecting rods
6 take-off lever 32 second longitudinal trough 56 first conduits
8 clutch 34 first spline 58 first cylindrical pin
9 driving body 36 second spline 60 cannelures
10 driving mechanisms 38 the 3rd spline 62 collars
12 limiting mechanism 39 spline oblique angle 64 elastic protrusions
14 cam path 40 keeper 66 grooves
Protruding 68 springs of 16 impeller 42
17 counterbore 44 draw-in groove 70 projections
18 first actuator 46 magnet 72 annular elements
20 second actuator 48 accepting hole 74 the first row star wheel series
22 fixture 50 mode changeover mechanism 76 second planet circular systems
26 limited part 52 operating parts 78 ring gears
80 gears 90 the 4th conduit 304 sawtooth portions
81 speed change conduit 92 spring 306 ends
82 second conduit 200 power tool 308 cutting edges
The working head 310 working head sides of 84 second cylindrical pin 300 power tools
86 second connecting rod 301 installation portion 312 adjacent surfaces
88 the 3rd conduit 302 sawtooth 400 chucks
Detailed description of the invention
Refer to Fig. 1 and Fig. 2, the power tool 100 of the present embodiment comprises housing 2, is contained in the motor (not shown) in housing 2, the take-off lever 6 being driven by transmission mechanism by motor, the clutch 8 that movable and transmission mechanism connects, clutch 8 can move between the two positions, makes transmission mechanism driver output bar 6 reciprocating in primary importance; In the second place, transmission mechanism driver output bar 6 is rotated, thereby greatly improved the range of application of power tool 100.
Refer to Fig. 1 and Fig. 3, transmission mechanism comprises driving mechanism 10 and limiting mechanism 12, driving mechanism 10 moves back and forth take-off lever 6 in rotating, thereby the rotation that clutch 8 makes limiting mechanism 12 limit take-off lever 6 in primary importance makes take-off lever 6 output reciprocating motions; Thereby take-off lever 6 outputs that back and forth make that clutch 8 makes limiting mechanism 12 limit take-off lever 6 in the second place rotatablely move.
Driving mechanism 10 comprise by motor drive rotation driving body 9 and be located at driving body 9 and take-off lever 6 between switching mechanism, limiting mechanism 12 is relative with take-off lever 6 fixing in the direction of rotation of take-off lever 6, thereby clutch 8 is connected limiting mechanism 12 in primary importance with housing 2, the rotation that limits take-off lever 6 makes take-off lever 6 output reciprocating motions; Thereby clutch 8 is connected driving body 9 in the second place take-off lever 6 and driving body 9 is rotated jointly with limiting mechanism 12.
Switching mechanism comprises cam path 14 on one that is arranged in driving body 9 and take-off lever 6, be arranged on the impeller 16 on another in driving body 9 and take-off lever 6.In the present embodiment, cam path 14 is arranged on driving body 9, and preferred, the driving body 9 of the present embodiment is hollow cylinder, and cam path 14 is located on the inner surface of driving body 9.Impeller 16 is steel ball, and take-off lever 6 is provided with the counterbore 17 of partly accommodating steel ball.So arrange, after 9 rotations of motor driving driving body, by the cooperation of cam path 14 and impeller 16, take-off lever 6 is moved back and forth in rotating.Preferably, driving body 9 is cylindrical hollow cylinder, and cam path 14 is arranged on driving body 9 inner surfaces.In the present embodiment, it is interior and coaxial with driving body 9 that take-off lever 6 parts are housed in driving body 9 cavitys, so arranges, and each modular construction is arranged well-balanced reasonable, can reduce the volume of power tool.
For convenience of the processing and manufacturing of driving body 9 inner surface epirelief races 14, the fixture 22 that the driving body 9 of the present embodiment comprises the first actuator 18, the second actuator 20 and the first actuator 18 and the second actuator 20 are linked together, cam path 14 parts are arranged on the first actuator 18, and another part is arranged on the second actuator 20.Preferably, cam path 14 is divided into two parts along the center line of its conduit, and these two parts are separately positioned on the first actuator 18 and the second actuator 20, and cam path 14 is symmetrically distributed on the first actuator 18 and the second actuator 20.The fixture 22 of the present embodiment and the first actuator 18 and the second actuator 20 are threaded connection fixing, easy to connect reliable.The present embodiment also can have various deformation; as cam path being arranged on take-off lever outer surface; or cam path is arranged on driving body outer surface; to facilitate the processing and manufacturing of cam path; all of these; its function and effect and the same or analogous technical scheme of the present invention do not repeat them here, as long as all should be covered by protection domain of the present invention.
Limiting mechanism 12 is relative with take-off lever 6 fixing in the direction of rotation of take-off lever 6, and limiting mechanism 12 and take-off lever 6 are circumferentially fixed both without relatively rotating.Concrete, limiting mechanism 12 comprises and is rotatingly socketed in limited part 26 on take-off lever 6, is arranged on the rotation preventive mechanism between limited part 26 and take-off lever 6.Rotation preventive mechanism comprises to be located at axially extended the first longitudinal trough 30 along take-off lever 6 on limited part 26, to be located on take-off lever 6 along its axially extended second longitudinal trough 32 and to wear the connector 28 that the first longitudinal trough 30, the second longitudinal trough 32 are circumferentially fixed together limited part 26 and take-off lever 6.Connector 28 and the first longitudinal trough 30 and the second longitudinal trough 32 connect along sliding axially of take-off lever 6, when making take-off lever 6 and limited part 26 circumferential fixing, take-off lever 6 can be moved back and forth smoothly.
Between the present embodiment limiting mechanism and take-off lever, be provided with two cover rotation preventive mechanism, the rotation of the relative take-off lever of two cover rotation preventive mechanism is symmetrical arranged, reliable in structure, and certainly, the rotation preventive mechanism that arbitrary number is set between limiting mechanism and take-off lever all can.The connector 28 of the present embodiment is preferably steel ball, and connecting of steel ball and longitudinal trough makes take-off lever reciprocating motion smooth and easy level and smooth, and interchangeable, connector 28 uses cylindrical pin also can.
In the present embodiment, driving mechanism 10 has determined the reciprocating stroke of take-off lever 6, the length sum of the first longitudinal trough 30 and the second longitudinal trough 32 is more than or equal to the reciprocating stroke of take-off lever 6, thereby rotation preventive mechanism can not limit the reciprocating motion of take-off lever 6, that take-off lever 6 is moved is smooth and easy.In the present embodiment, the length sum of the first longitudinal trough 30 and the second longitudinal trough 32 allows the smooth and easy motion of take-off lever 6, can make the smooth and easy motion of take-off lever 6 thereby the second shorter longitudinal trough 32 only need be set on take-off lever 6, and the intensity of take-off lever 6 can be guaranteed.Interchangeable, connector is fixedly connected with limited part, the longitudinal trough of joining with connector cunning is only set on take-off lever and also can.
In the present embodiment, the second actuator 20 is socketed on limited part 26, the first longitudinal trough 30 on limited part 26 connects towards one end of the second actuator 20, the second actuator 20 and limited part 26 butts serve as an end of the first longitudinal trough 30, interchangeable, the first longitudinal trough 30 closed at both ends on limited part 26 also can.
The present embodiment arranges the rotation preventive mechanism that both are circumferentially fixed together between limited part 26 and take-off lever 6.Interchangeable; thereby limiting mechanism and take-off lever 6 abnormity connect circumferentially fixing; as limited part and the matched part of take-off lever are arranged to regular polygon; and do not need between that extra rotation preventive mechanism is set; circumferentially fixing and take-off lever 6 can axially reciprocating can to make equally limiting mechanism and take-off lever 6, all of these, does not repeat them here; as long as its function and effect and the same or analogous technical scheme of the present invention, all should be covered by protection domain of the present invention.
Clutch 8 and limiting mechanism 12 spline joints.Concrete, clutch 8 is provided with the first spline 34, and limiting mechanism 12 is provided with second spline 36 that can engage with the first spline 34.Preferably, clutch 8 can be socketed on the limited part 26 of limiting mechanism 12, and the first spline 34 is arranged on the inner surface of clutch 8, and the second spline 36 is arranged on the outer surface of limited part 26.When the first spline 34 and the second spline 36 engage, clutch 8 is connected with limiting mechanism 12, is especially circumferentially fixedly connected with.Preferred, the first spline 34, the second spline 36 circumferentially arrange along the direction of rotation of take-off lever 6, the first spline 34 circumferentially arranging and the second spline 36 connect can be by clutch 8 and stable being connected of limited part 26, interchangeable, the first spline 34 and the second spline 36 make both enough connect and also can along circumferential certain angle setting.
Clutch 8 and driving body 9 spline joints.Concrete, driving body 9 is provided with the 3rd spline 38 engaging with the first spline 34, preferably, clutch 8 can be socketed on the second actuator 20 of driving body 9, the 3rd spline 38 is arranged on the second actuator 20 outer surfaces, when the first spline 34 and the 3rd spline 38 engage, clutch 8 is connected with driving body 9, is especially circumferentially fixedly connected with.Preferred, the first spline 34, the 3rd spline 38 circumferentially arrange along the direction of rotation of take-off lever 6, the first spline 34 circumferentially arranging and the 3rd spline 38 connect can be by clutch 8 and stable being connected of the second actuator 20, interchangeable, the first spline 34 and the 3rd spline 38 make both enough connect and also can along circumferential certain angle setting.
Refer to Fig. 5, preferably, limiting mechanism 12 has concordant spline with driving body 9, the second spline 36 is concordant with the second spline 38, thereby clutch 8 switches between primary importance and the second place along the axial slip of take-off lever 6, when clutch 8 is positioned at primary importance, the first spline 34 and the second spline 36 engage; Referring to Fig. 6, clutch 8 is in the time of the second place, and the first spline 34 engages with the second spline 36 and the 3rd spline 38 simultaneously.In the present embodiment, the second spline 36 is greater than the 3rd spline 38 along the axial length of take-off lever 6 along the axial length of take-off lever 6, thereby facilitates clutch 8 to switch between the two positions.
Preferred, limiting mechanism 12 and driving body 9 toward each other the spline end of a side are provided with oblique angle, and two ends of the spline of clutch 8 are provided with oblique angle.Concrete, in conjunction with Fig. 2 and Fig. 4, the second spline 36 and the 3rd spline 38 toward each other the spline end of a side are provided with oblique angle, two ends of the first spline 34 are equipped with oblique angle, the enlarged diagram at what Fig. 4 was exemplary the show spline oblique angle 39 of the 3rd spline 38, the oblique angle of the first spline 34, the second spline 36 and the oblique angle size of the 3rd spline 38, measure-alike, so arrange, in clutch 8 axial slip processes, can engage with the second spline 36 and the 3rd spline 38 smoothly.
In conjunction with Fig. 1 to Fig. 3, as previously mentioned, thereby clutch 8 is connected limiting mechanism 12 in primary importance with housing 2, the rotation that limits take-off lever 6 makes take-off lever 6 output reciprocating motions.Concrete, housing 2 is provided with keeper 40, and keeper 40 is at least relative with housing 2 fixing in the direction of rotation of take-off lever 6, the keeper 40 of the present embodiment preferably with housing 2 the direction of rotation of take-off lever 6 and axial on all relative fixing.Between clutch 8 and keeper 40, be provided with adapting mechanism, when clutch 8 is positioned at primary importance, thereby this adapting mechanism is connected clutch 8 limiting mechanism 12 is connected with housing 2 with position part 40, when clutch 8 is positioned at the second place, clutch 8 is thrown off with keeper 40.
Adapting mechanism comprises projection 42 on one that is provided with in clutch 8 and keeper 40, be arranged on the draw-in groove 44 on another in clutch 8 and keeper 40, when clutch 8 is positioned at primary importance, projection 42 connects with draw-in groove 44, when clutch 8 is positioned at the second place, projection 42 is thrown off with draw-in groove 44.In the present embodiment, projection 42 is arranged on clutch 8, and draw-in groove 44 is arranged on keeper 40.Preferably, the detent mechanism of the present embodiment comprises the multipair projection mutually connecting 42 and draw-in groove 44, this is multipair protruding 42 symmetrical with the axis X-X of draw-in groove 44 relative take-off levers, thus make clutch 8 in the time of primary importance with reliable and stable being connected of keeper 40.Preferred, projection 42 and draw-in groove 44 that even-even connects are mutually set, this even-even projection 42 and draw-in groove 44 are divided into several groups that vary in size, the two pairs of projections 42 and the draw-in groove 44 that are positioned on straight line are one group, so arrange, together with projection that can only size coupling can connect with draw-in groove, thereby ensure that take-off lever 6 can only be at certain several positions output reciprocating motion, during due to take-off lever output reciprocating motion, conventionally drive saw blade work, make take-off lever 6 only more meet general operation person's operating habit at some position output reciprocating motion.
The present embodiment also can have various deformation, as projection being arranged on keeper, draw-in groove being arranged on clutch; Multipair projection and draw-in groove are set, thus the identical position of not limitting take-off lever of size of the every pair of projection and draw-in groove; Its function and effect and the same or analogous technical scheme of the present invention a pair of projection be only set and with draw-in groove, clutch be connected with keeper, all of these, do not repeat them here, as long as all should be covered by protection domain of the present invention.
Preferred in the present embodiment, when clutch 8 is positioned at primary importance, housing 2 is connected with clutch 8 magnetic, thereby can make clutch 8 in primary importance and more stable being connected of housing 2.Concrete, keeper 40 is provided with magnet 46, and clutch 8 is made up of the metal that can be attracted by magnet 46.Preferably, keeper 40 is provided with the circumferentially equally distributed multiple accepting holes 48 of axis X-X around take-off lever 6, and multiple magnet 46 is housed in respectively in multiple accepting holes 48, clutch 8 can be connected on housing 2 more reliably.
The present embodiment also can have various deformation, and the projection and the draw-in groove that mutually connect as no longer arranged between clutch and keeper are connected, and only connect by magnetic; Extra magnet is no longer set on keeper; and make keeper and clutch itself there is magnetic and can attract each other to link together, all of these, do not repeat them here; as long as its function and effect and the same or analogous technical scheme of the present invention, all should be covered by protection domain of the present invention.
Incorporated by reference to Fig. 1, Fig. 2 and Fig. 5, thereby the power tool of the present embodiment is provided with the axially movable mode changeover mechanism 50 that clutch 8 is switched between primary importance and the second place of solenoidoperated cluthes 8.Preferably, mode changeover mechanism 50 comprises the operating parts 52 of being located on housing 2, moves axially between primary importance and the second place and switches thereby operating parts 52 rotarily drives clutch 8.Concrete, between operating parts 52 and clutch 8, be provided with conversion conduit 53 and can be in the first cylindrical pin 58 of conversion conduit 53 interior slips, conversion conduit 53 comprises along the circumferential extension of take-off lever 6 and the first conduit 56 that the axis X-X of take-off lever 6 is obliquely installed relatively.In conjunction with Fig. 5 and Fig. 6, in the time that operating parts 52 rotates, the first cylindrical pin 58 is in the interior slip of the first conduit 56, because the axis X-X of the first conduit 56 relative take-off levers 6 tilts, thereby the axial generation displacement along take-off lever 8 with dynamic clutch 8 by the displacement of the axial generation along output shaft 6 when the first cylindrical pin 58 is slided in the first conduit 56, thereby clutch 8 is switched between primary importance and the second place.
Referring to Fig. 5 and Fig. 6, in the present embodiment, the first conduit 56 is greater than the diameter of the first pin shape post 58 along the axial width of take-off lever 6, thereby facilitates clutch 8 to switch to primary importance from the second place.Concrete, again in conjunction with Fig. 2, when clutch 8 from the second place towards primary importance handoff procedure, exist projection 42 just not snap in the situation of draw-in groove 44, now, clutch 8 still keeps being connected with limited part 26 and driving body 9 by spline, rotatable take-off lever 6, take-off lever 6 rotates by limited part 26 is with dynamic clutch 8 and driving body 9 to rotate, thereby make projection 42 rotations and under the sucking action of magnet 46, snap in smoothly draw-in groove 44, final clutch 8 is switched to primary importance smoothly, the diameter that the first conduit 56 axial widths are greater than the first cylindrical pin 58 can be clutch 8 and switches to from the second place the mobile slot milling of primary importance, facilitate the conversion of clutch 8.
Referring to Fig. 3 and Fig. 5, be connected with operating parts 52 for convenience of clutch 8, on clutch 8, be connected with first connecting rod 54, the first conduits 56 and be arranged on operating parts 52, the first cylindrical pin 58 is arranged on first connecting rod 54.For first connecting rod 54 is connected reliably with clutch 8, the clutch 8 of the present embodiment is provided with cannelure 60, one end that first connecting rod 54 deviates from cylindrical pin 58 is provided with semicircular collar 62, and collar 62 is connected in cannelure 60 first connecting rod 54 is connected with clutch 8.
The present embodiment also can have various deformation, as cylindrical pin being arranged on operating parts, the first conduit being arranged on first connecting rod; Thereby operating parts is fixedly connected with operating parts to be switched along the axial slip band dynamic clutch of take-off lever with clutch between primary importance and the second place; all of these repeat no more; as long as its function and effect and the same or analogous technical scheme of the present invention, all should be covered by protection domain of the present invention.
The process of the pattern conversion of power tool 100 is described below.
Thereby Fig. 5 shows clutch 8 and is positioned at primary importance and makes first state of take-off lever 6 in output reciprocating motion.In conjunction with Fig. 3 and Fig. 5, motor is reciprocating in rotating by driving mechanism 10 driver output bars 6, keeper 40 is at least relative with housing fixing in the direction of rotation of take-off lever 6, the first cylindrical pin 58 is positioned at an end of the first conduit 56, clutch 8 is positioned at primary importance, now, clutch 8 on the one hand with keeper 40 by projection 42 and draw-in groove 44 connect and the sucking action of magnet 46 links together, engage and link together by the first spline 34 and the second spline 36 with limited part 26 on the other hand, thus, thereby limited part 26 is connected with housing 2 by clutch 8, limited part 26 can not rotate, thereby take-off lever 6 and limited part 26 are circumferentially fixed together, take-off lever 6 can not rotate, take-off lever 6 output reciprocating motions.
Operator's rotating operation part 52, make the first cylindrical pin 58 slide into another end along the first conduit 56 tilting from an end, the first cylindrical pin 58 is along the axial generation displacement of take-off lever 6, thereby the axial generation displacement with dynamic clutch 8 along take-off lever 6, clutch is switched to the second place shown in Fig. 6 from the primary importance shown in 5 gradually, now, clutch 8 and keeper 40 depart from and the first spline 34 of clutch 8 engages with the second spline 36 of limited part 26 and the 3rd spline 38 of driving body 9 simultaneously, thereby clutch 8 is connected as a single entity limited part 26 and driving body 9, simultaneously, because take-off lever 6 and limited part 26 are circumferentially fixing, thus, take-off lever 6 is connected as a single entity and jointly rotates with driving body 9 with driving body 9, take-off lever 6 outputs rotatablely move.
Power tool 100 switches to toward the method for operating of complex pattern roughly the same from rotary mode, and difference is only the rotation direction of operating parts 52, does not repeat them here.
In conjunction with Fig. 3 and Fig. 6, between housing and clutch 8, be provided with the first maintaining body and the second maintaining body that clutch 8 are remained on respectively to primary importance and the second place.Preferably, the first maintaining body and the second maintaining body are provided with between housing and operating parts 52 and make operating parts 52 remain on primary importance and the second place, thereby make clutch 8 remain on primary importance and the second place.
The first maintaining body comprises the elastic protrusion 64 that is arranged on in both one of housing 2 and operating parts 52, be arranged on the groove 66 connecting with elastic protrusion 64 on another in both of housing 2 and operating parts 52.Preferably, the structure of the second maintaining body is identical with the structure of the first maintaining body, comprises the elastic protrusion that is arranged on in both one of housing 2 and operating parts 52, is arranged on the groove connecting with elastic protrusion on another in both of housing 2 and operating parts 52.Preferred, an elastic protrusion 64 is set on operating parts 52, two grooves 66 (only illustrating in figure) are set on housing 2, when elastic protrusion 64 connects with first groove, operating parts 52 remains on primary importance, thereby makes clutch 8 remain on primary importance; When elastic protrusion 64 and second groove connect, operating parts 52 remains on the second place, thereby makes clutch 8 remain on the second place.
Preferably, elastic protrusion 64 comprises the spring 68 being fixedly connected with operating parts 52 and is set in the hollow convex column 70 on spring 68, and the end of projection 70 is hemispherical and snaps in or depart from groove to facilitate; Groove 66 arranges on the annular element 72 being fixedly connected with housing and around the circumferential arrangement of annular element 72.
In conjunction with Fig. 3, Fig. 5 and Fig. 6, between motor and driving body 9, be provided with the first row star wheel series 74 and the second planet circular system 76 that connect in turn and slow down to realize.In the present embodiment, driving body 9 is coaxial with motor output shaft, and take-off lever 6 is coaxial with driving body 9, and final take-off lever 6 is coaxial with motor output shaft, and complete machine is arranged rationally, can farthest reduce the volume of power tool 100.
In the present embodiment, the preferably ring gear 78 of the second planet circular system 76 axially can move between the two positions along take-off lever 6, as shown in Figure 6, in primary importance, ring gear 78 engages with housing 2, the rotation that the second planet circular system 76 is exported the first row star wheel series 74 is further slowed down, and driving body 9 is with the first lower rotational speed; As shown in Figure 5, in the second place, ring gear 78 departs from housing 2, and the second planet circular system 76 is inoperative, and driving body 9 is with the second higher rotational speed.In the present embodiment, between ring gear 78 and housing 2, connect and engage with draw-in groove by projection, or by circumferential spline engagement, do not repeat them here.
Power tool 100 is provided with controls the gear 80 that ring gear 78 switches between primary importance and the second place, and gear 80 comprises the operating parts of being located on housing 2, and operating parts rotarily drives ring gear 78 and moves axially.The present embodiment is preferred, the operating parts 52 of the operating parts of gear 80 and mode changeover mechanism 50 is same parts, be that operating parts 52 is connected with clutch 8 and ring gear 78 simultaneously, thereby the position of solenoidoperated cluthes 8 and ring gear 78 simultaneously, and then control pattern conversion and the speed change of power tool 100 simultaneously, easy to operate.Certainly, two operating parts position of solenoidoperated cluthes and ring gear is respectively set on housing, thereby pattern conversion and the speed change of controlling respectively power tool also can.
Concrete, between operating parts 52 and ring gear 78, be provided with speed change conduit 81 and can be in the second cylindrical pin 84 of speed change conduit 81 interior slips, speed change conduit 81 comprises along the circumferential extension of take-off lever 6 and the second conduit 82 of being obliquely installed with respect to the axis X-X of take-off lever 6.In conjunction with Fig. 5 and Fig. 6, in the time that operating parts 52 rotates, the second cylindrical pin 84 is in the interior slip of the second conduit 82, because the axis X-X of the second conduit 82 relative take-off levers 6 tilts, the second cylindrical pin 84 in the second conduit 82 tilting while sliding by the axial generation displacement along take-off lever 6, thereby drive ring gear 78 along the axial generation displacement of take-off lever 6 and then ring gear 78 switched between primary importance and the second place.
In the present embodiment, the second conduit 82 is located on operating parts 2, due to ring gear 78 in the form of a ring, be connected with operating parts 52 for convenience of ring gear 78, on ring gear 78, be connected with second connecting rod 86, the second cylindrical pin 84 and be located on second connecting rod 86.Second connecting rod 86 is identical with the docked mode of clutch 8 with docked mode and the first connecting rod 54 of ring gear 78, does not repeat them here.
In conjunction with Fig. 5 and Fig. 6, thus, the second cylindrical pin 84 two extreme positions that corresponding ring gear 78 moves in the position of two ends of the second conduit 82, thus driving body 9 correspondences with the first rotating speed or the second rotational speed; And two extreme positions that the first cylindrical pin 58 moves at the corresponding clutch 8 of two terminal positions of the first conduit 56, thereby make take-off lever 6 output rotations or move back and forth.The present embodiment is preferred, take-off lever circumferential 6 on, the longest distance that the second cylindrical pin 84 moves in the second conduit 82 is identical with the longest distance that the first cylindrical pin 58 moves in the first conduit 56, thus, when thereby operating parts 52 rotates when making ring gear 78 put speed change in place along moving axially of take-off lever 6, thereby the translative mode that also simultaneously puts in place that moves axially along take-off lever 6 of clutch 8 is simple to operation.
In conjunction with Fig. 5, Fig. 6 and Fig. 7, in the present embodiment, conversion conduit 53 also comprises the 3rd conduit 88 communicating with the first conduit 56, the 3rd conduit 88 is vertical along the circumferential extension of take-off lever 6 and the axis X-X of relative take-off lever 6, speed change conduit 81 also comprises the 4th conduit 90 communicating with the second conduit 82, the 4th conduit 90 along the circumferential extension of take-off lever 6 and relatively the axis X-X of take-off lever 6 be obliquely installed, the first cylindrical pin 58, the second cylindrical pin 84 respectively simultaneously the first conduit 56 with in the second conduit 82, move and week of take-off lever 6 displacement upwards identical; The first cylindrical pin 58, the second cylindrical pin 84 respectively simultaneously the 3rd conduit 88 with in the 4th conduit 90, move and week of take-off lever displacement upwards identical.The first cylindrical pin 58 upwards extend in the week along take-off lever 6 and three conduit 88 vertical with the axis X-X of take-off lever 6 in slide, clutch 8 axially can not produce displacement along take-off lever, thereby clutch 8 remains in primary importance and the second place on a position and then take-off lever 6 keeps output rotation or moves back and forth; And the second cylindrical pin 84 is slided in the circumferential extension along take-off lever 6 and in the 4th conduit 90 that the axis X-X of take-off lever 6 is obliquely installed relatively, ring gear 78 is along the axial generation displacement of take-off lever 6, thereby ring gear 78 makes driving body 9 respectively with the first different rotating speeds and the second rotational speed, therefore, the power tool 100 of the present embodiment has at a high speed in the time of take-off lever 6 output rotations or reciprocating motion and two kinds of patterns of low speed are selected for operator, and handled easily person uses.
Preferably, the 3rd conduit 88 extends in one end of corresponding clutch 8 second places of the first conduit 58, thus, the power tool 100 of the present embodiment has at a high speed while having take-off lever 6 outputs to rotatablely move and two kinds of patterns of low speed are selected for operator, more meets operator's demand.
Preferred, the 4th conduit 90 and the second conduit 82 two ends away from each other being circumferentially positioned on the same line at take-off lever 6.Thus, the take-off lever of the power tool 100 of the present embodiment has at a high speed back and forth, low speed rotation, three kinds of duties of High Rotation Speed, more meets operator's user demand.
The reciprocal state of high speed as shown in Figure 5, the first cylindrical pin 58 is positioned at the end of the first conduit 56 away from the 3rd conduit 58, and clutch 8 is positioned at the primary importance engaging with the keeper 40 on housing 2, take-off lever 6 output reciprocating motions; Meanwhile, the second cylindrical pin 84 is positioned at the end of the second conduit 82 away from the 4th conduit 90, and ring gear 78 is positioned at and the out-of-gear second place of housing, driving body 9 High Rotation Speeds, and final take-off lever 6 outputs move back and forth at a high speed.
Subsequently, operating parts 52 rotates, the first cylindrical pin 58 is slided along the first conduit 56 tilting, the second cylindrical pin 84 is slided along the second conduit 82 tilting, be transformed into gradually low speed rotation state as shown in Figure 6, now, the first cylindrical pin 58 is positioned at the end of the first conduit 56 near the 3rd conduit 88, clutch 8 moves axially the keeper 40 being switched to the second place and housing from primary importance and departs from, take-off lever 6 outputs rotatablely move, meanwhile, the second cylindrical pin 84 moves to the end of the second conduit 82 near the 4th conduit 90, ring gear 78 moves axially to the primary importance engaging with housing 2, driving body 9 low speed rotation, final take-off lever 6 is exported low-speed rotation.
Then, operating parts 52 continues rotation, the first cylindrical pin 58 is slided in the 3rd conduit 88 vertical with the rotation of take-off lever 6, the invariant position of clutch 8, take-off lever 6 keeps rotation, meanwhile, the second cylindrical pin 84 is slided and is driven ring gear 78 to move axially along the 4th conduit 90 tilting, be transformed into gradually high speed rotary motion as shown in Figure 7, now, the first cylindrical pin 58 is positioned at the end of the 3rd conduit 88 away from the first conduit 56, clutch 8 does not produce to move axially and still remains on the second place, take-off lever 6 keeps the state of rotation, meanwhile, the second cylindrical pin 84 is positioned at the end of the 4th conduit 90 away from the second conduit 82, and the 4th conduit 90 and the second conduit 82 end away from each other being circumferentially positioned on the same line at take-off lever 6, ring gear 78 is switched to and the out-of-gear second place of housing, driving body 9 High Rotation Speeds, final take-off lever 6 is exported high speed rotary motion.
As previously mentioned, the elastic protrusion 64 arranging on operating parts 52 respectively with the annular element 72 of housing 2 on two grooves 66 arranging connect, thereby make clutch 8 remain on respectively primary importance and the second place makes take-off lever 6 remain on rotation or reciprocal duty.The preferred take-off lever 6 of the present embodiment has at a high speed back and forth, low speed rotation, three kinds of states of High Rotation Speed, accordingly, three grooves 66 can be set on annular element 72, when elastic protrusion 64 on operating parts 52 connects with three grooves respectively, make take-off lever 6 remain on respectively one of above-mentioned three kinds of states upper, Fig. 6 shows elastic protrusion 64 and connects with one of them groove 66 state that makes take-off lever remain on low speed rotation.
The present embodiment can, by the setting of the each conduit of conversion, make take-off lever have various duty.As the first conduit and the second conduit are only set, make take-off lever only possess High Rotation Speed (or back and forth) and back and forth (or rotation) two states of low speed; For another example; the 3rd conduit extends in one end of the corresponding clutch primary importance of the first conduit; thereby take-off lever input possesses at a high speed while reciprocating motion and low speed two states is selected; all of these; do not repeat them here; as long as its function and effect and the same or analogous technical scheme of the present invention, all should be covered by protection domain of the present invention.
The present embodiment is preferred, week of take-off lever 6 upwards, conversion conduit 53 is concordant with the end of speed change conduit 81, thereby only need conversion conduit 53 and speed change conduit 81 can be set simultaneously at less operating parts 52, makes power tool 100 compact conformations.Certainly, the end of conversion conduit 53 and speed change conduit 81 staggers and also can realize same function.
Fig. 9 shows the power tool 200 of another embodiment of the present invention, and power tool 200 uses identical label with the similar parts of power tool 100.Fig. 9 is integrated two positions of clutch 8, at the first half of axis X-X, clutch 8 is positioned at the second place; In the Lower Half of axis X-X, clutch 8 is positioned at primary importance.
Power tool 200 is with the main distinction of the power tool 100 of embodiment mono-, the keeper 40 of the present embodiment is upwards relative fixing in the week of take-off lever 2 with housing 2, but keeper 40 relatively housing 3 moves axially, between keeper 40 and housing 2, be provided with spring 92, clutch 8 from the second place to primary importance handoff procedure, when projection 42 does not connect with draw-in groove 44, spring 92 is compressed, take-off lever 6 rotates by limited part 26 is with dynamic clutch 8 to rotate, aim at draw-in groove 44 thereby projection 42 is rotated, spring 92 forces projection 42 and draw-in groove 44 to align smoothly.
The present embodiment is preferred, and when clutch 8 is positioned at primary importance, spring 92, in free state, can not force keeper 40 to move towards clutch 8, moves towards the second place thereby spring 92 can not promote clutch 8, can avoid maloperation.Certainly,, when clutch 8 is positioned at primary importance, spring 92 also can, in compressed state, for avoiding maloperation, arrange the mechanism of restriction keeper 40 axial displacements on housing 2.
The housing 2 of the present embodiment is provided with the axially extended alignment pin (not shown) along take-off lever 6, keeper 40 be provided with alignment pin on the hole that connects, thereby it is circumferentially fixing but can axially relatively move that keeper 40 and housing 2 are realized with simple structure.
Fig. 9 to Figure 11 shows the working head 300 for power tool.
In conjunction with Fig. 1 and Fig. 9, working head 300 comprises in turn the installation portion 301 that arranges, is provided with the sawtooth portion 304 of lengthwise row sawtooth 302, end 306 away from installation portion 301.
Installation portion 301 is for being connected with the take-off lever 6 of power tool 100, thereby working head 300 is synchronized with the movement and makes working head 300 back and forth or rotatablely move with processing work with take-off lever 6.
In the present embodiment, thereby installation portion 301 is connected after working head 300 wearing and tearing and is replaced easily working head 300 by chuck 400 with take-off lever 6.Installation portion 301 also can be connected by alternate manner with take-off lever 6, such as direct connection.Certainly, working head 300 is not limited to be connected with power tool 100, and the power tool that other can be realized back and forth and/or rotation is exported all can use the working head 300 of the present embodiment.
Existing single reciprocating saw, the sweep-saw etc. of realizing reciprocalfunction all has the working head taking saw blade as representative and the various chuck that clamps this type of working head of standard; Equally, existing single electric drill, the screwdriver etc. of realizing spinfunction also has the working head taking drill bit, screwdriver bit as representative of standard and clamps the chuck of this type of working head.For improving versatility, the installation portion 301 of the working head 300 of the present embodiment is identical with the installation portion of the working head of existing sweep-saw, thereby working head 300 can be used easily existing sweep-saw chuck and is connected with take-off lever 6.Certainly, installation portion 301 and existing other power tool, as identical in the installation portion of the working head of reciprocating saw, electric drill etc. also can, thus, working head 300 can be connected with the take-off lever of power tool by existing various chucks easily, reduces development cost handled easily person's use.
In conjunction with Fig. 9 and Figure 10, sawtooth portion 304 lengthwises extend, and sawtooth portion 304 moves back and forth along the bearing of trend of sawtooth 302 can cut workpiece.Sawtooth 302 moves back and forth and forms line of cut L1.Sawtooth 302 has certain transverse width conventionally, and therefore, sawtooth 302 moves back and forth and can form a cut surface, and in the present embodiment, it is the unlimited thin and abstract line of cut drawing of hypothesis sawtooth 302 that sawtooth 302 moves back and forth the line of cut L1 forming.The implication of " sawtooth " of the present invention word is not limited to the sawtooth of the spur shape of narrow sense, and the object of other any reciprocally motion cutting or buffing work-piece, as diamond abrasive particle etc. all should be included in the scope of " sawtooth ".
In conjunction with Fig. 9 to Figure 11, end 306 is provided with cutting edge 308, and cutting edge 308 rotates to form the cut surface for processing work around rotation centerline L2.In the present embodiment, working head 300 regular shape, rotation centerline L2 is the center line of working head 300 sawtooth bearing of trends simultaneously.
Preferably, cut surface is taper seat, to facilitate working head 300 to punch on workpiece.The present embodiment is preferred, and the relative rotation centerline L2 straight linear of cutting edge 308 tilts to extend, thereby obtains circular cone cut surface with simple structure.Concrete, the bearing of trend line L3 of cutting edge 308 and the rotation centerline L2 angle α in the direction towards installation portion 301 is acute angle setting.Different angle α arranges can adapt to different use occasions, easier creeps into workpiece, but will obtain the hole of same diameter as less angle α can make end 306, may need to arrange longer end; Otherwise, obtain the hole of same diameter, larger angle α only needs shorter end is set, but that workpiece is crept in end 306 is relatively difficult.The present embodiment is preferred, and angle α is more than or equal to 30 degree, is less than or equal to 75 degree, thereby under the relatively easy prerequisite of creeping into workpiece, reduces as much as possible the length of end.For more meeting general operation person's use habit, in the present embodiment, cutting edge is set to when working head 300 turns clockwise to creep into workpiece, exit workpiece while being rotated counterclockwise.
The present embodiment is preferred, end 306 is provided with two cutting edges 308, two relative rotation centerline L2 of cutting edge 308 circumferentially distribute, the bearing of trend line of two cutting edges 308 is identical with the angle of rotation centerline L2, thus, when working head 300 rotates, these cutting edges 308 rotate simultaneously, thus acting in conjunction in workpiece efficiently workpiece is processed.The present embodiment is preferred, and two relative rotation centerline L2 of cutting edge 308 are circumferentially uniform, thereby can at the uniform velocity stable workpiece is processed in the time that working head rotates at these cutting edges.
The present embodiment is preferred, in the definite plane of the line of cut L1 forming at sawtooth 302 and rotation centerline L2 (being on the paper at Fig. 9 place), on the rotation centerline L2 that the projection of two cutting edges 308 is intersected and intersection point M is positioned at.So be provided with and be beneficial to working head 300 and locate on workpiece, cutting edge 308 can creep into workpiece from intersection point M easily gradually subsequently, and operation is accurately convenient.
The present embodiment also can have various deformation, as the cutting edge of horizontally set rotates to form cylinder cut surface, workpiece is punched; The arc milling sword protruding rotates to form spherical cut surface workpiece is punched; The cutting edge of similar " mountain " font rotates to form abnormity cutting and punches in the face of workpiece; Or cutting edge forms along the circular cone cut surface and the cylinder cut surface that connect after different inclination angle rotations is set, thereby circular cone cut surface can facilitate working head on workpiece, to locate and fast drilling workpiece, and cylinder cut surface can bore the operation of vertical slot hole more efficiently; Again or, the cutting edge extending spirally rotates to form circular cone and/or cylinder cut surface, all of these, does not repeat them here, as long as its function and effect and the same or analogous technical scheme of the present invention, all should be covered by protection domain of the present invention.
In the present embodiment, end 306 is for having certain thickness Gothic arch, and two cutting edge 308 antarafacials are arranged on to be had on certain thickness end 306, thereby enough intensity is provided.Concrete, two cutting edges 308 are separately positioned on two sides of end 306, and the side of end 306 refers to two sides of the both sides that are positioned at serration, and two sides are parallel with rotation centerline L2.
In conjunction with Figure 10 and Figure 11, the present embodiment is preferred, intersection be angle between working head side 310 and the cutting edge adjacent surface 312 of cutting edge 308 between 15 degree to 80 degree, different angles can be applicable to different workpiece processing.
The present embodiment also can have various deformation, also can hole to workpiece as a cutting edge is only set; Or multiple circumferential distributions are set, preferably circumferentially uniform cutting edge, thus improve the working (machining) efficiency of workpiece head and reduce the wearing and tearing of single cutting edge.All of these its function and effect and the same or analogous technical scheme of the present invention, do not repeat them here, as long as all should be covered by protection domain of the present invention.
As previously mentioned, end 306 is for having certain thickness Gothic arch, and this example is preferred, and sawtooth portion 304 is shaped as has certain thickness square body, and sawtooth portion 304 is identical with the thickness of end 308, to facilitate processing and manufacturing.The present embodiment is preferred, and sawtooth portion 304 is one-body molded with end 308.Preferred, whole working head is one-body molded, and installation portion 301, sawtooth portion 304, end 306 are one-body molded, thereby working head 300 is manufactured and easy to use.
For easily manufactured and reduce costs, the working head 300 of the present embodiment can be formed by the reciprocating saw blade of standard or the jigsaw blade transformation of the way, concrete, at the end of the Gothic arch of standard reciprocating saw blade or jigsaw blade, cutting edge 308 is set.The present embodiment also can have other distortion, as working head also can be formed by the drill bit transformation of the way of standard, concrete, between the installation portion of drill bit and tip, lengthwise row sawtooth is set.
It may occur to persons skilled in the art that, the present invention can also have other implementation, but as long as its technical spirit adopting identical with the present invention or close, or any variation of making based on the present invention and replacement all within protection scope of the present invention.
Claims (10)
1. a working head, described working head comprises in turn the installation portion that arranges, is provided with the sawtooth portion of lengthwise row sawtooth, end away from installation portion, described installation portion is for being connected with power tool, it is characterized in that: described end is provided with cutting edge, described cutting edge rotates to form the cut surface for processing work around rotation centerline.
2. working head as claimed in claim 1, is characterized in that: described cut surface is taper seat.
3. working head as claimed in claim 2, is characterized in that: described cutting edge straight linear is extended.
4. working head as claimed in claim 1, is characterized in that: described cut surface comprises the face of cylinder.
5. working head as claimed in claim 1, is characterized in that: described cut surface comprises sphere.
6. working head as claimed in claim 1, is characterized in that: described cutting edge is at least two, and described at least two cutting edges circumferentially distribute with respect to described rotation centerline.
7. working head as claimed in claim 6, is characterized in that: the relatively described rotation centerline of described at least two cutting edges is uniformly distributed.
8. working head as claimed in claim 6, is characterized in that: in the definite plane of the line of cut forming at described sawtooth and described rotation centerline, the projection of described at least two cutting edges is intersected and intersection point is positioned on described rotation centerline.
9. working head as claimed in claim 1, is characterized in that: described cutting edge is two, and described two cutting edge antarafacials arrange.
10. a power tool, comprise housing, be contained in the motor in described housing, the take-off lever being driven by transmission mechanism by described motor, described power tool also comprises the movable clutch connecting with transmission mechanism, described clutch can move between the two positions, makes described transmission mechanism drive described take-off lever reciprocating in primary importance; Make described transmission mechanism drive described take-off lever to rotate in the second place, it is characterized in that: described take-off lever is connected with the installation portion of the arbitrary described working head of claim 1 to 9, thereby drive described working head to move back and forth to make described sawtooth portion to process workpiece, or drive described working head to rotatablely move described end is processed workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084432.0A CN104043861A (en) | 2013-03-15 | 2013-03-15 | Working head and power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084432.0A CN104043861A (en) | 2013-03-15 | 2013-03-15 | Working head and power tool |
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| Publication Number | Publication Date |
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| CN104043861A true CN104043861A (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310084432.0A Pending CN104043861A (en) | 2013-03-15 | 2013-03-15 | Working head and power tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107775115A (en) * | 2017-12-08 | 2018-03-09 | 厦门彬锐数控科技有限公司 | A kind of dehorner |
| CN109759373A (en) * | 2017-11-09 | 2019-05-17 | 苏州宝时得电动工具有限公司 | Multi-function washing machine |
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| CN2065523U (en) * | 1990-04-05 | 1990-11-14 | 李国强 | Electric round file |
| CN2071098U (en) * | 1990-06-16 | 1991-02-13 | 李庄镇 | Rotatable reciprocation driving hand electric tool |
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