CN105598919A - Handheld power tool - Google Patents

Abstract

The invention provides a handheld power tool. The handheld power tool comprises a housing, a handle, a switch, a motor, an output shaft and a working assembly, wherein the working assembly comprises at least two working chucks; each of the at least two working chucks comprises a working shaft; the working assembly is movably connected to the housing, so that each of the at least two working chucks can be switched between a working position and a non working position; one of the at least two working chucks is located in the working position, and the working shaft of the working chuck is axially connected with an output shaft in a matched way; and the rest working chuck in the at least two working chucks is located in the non working position, and the working shaft of the rest working chuck and the output shaft are arranged at an angle. The handheld power tool further comprises a control mechanism for locking the position of the working assembly relative to the housing, wherein the control mechanism comprises a control part close to the switch and arranged in a manner of moving relative to the housing; and the control part operably releases the position locking of the working assembly and controls the output shaft and one of the working shafts to be separated.

Description

Hand-hold power tool

The application is that applicant is " hand-hold power tool ", application number in the denomination of invention of application on January 29th, 2015It is the divisional application of 201510044644.5 Chinese invention patent application.

Technical field

The present invention relates to a kind of hand-hold power tool, relate in particular to a kind of hand-held with at least two mounting working chucksPower tool.

Background technology

Hand-hold power tool is electric drill such as, and for such as plank of workpiece etc. is holed, the working head of its utilization isDrill bit; For example screwdriver, can be used for tightening or unscrewing screw, and the working head of its utilization is screwdriver bit. This type of hand-hold type powerThe main shaft of instrument is provided with a mounting working chuck conventionally, for a class working head of the required use of clamping work, such working headCan there is different size. In the time that needs are changed working head and are carried out other work, need to first dismantle lower original working head, replaceChange with different working heads. The process of this working head replacement operation is very loaded down with trivial details.

At present, on market, there are some rifle drill kind tools with two mounting working chucks, as required can be two kinds of worksDo to select or conversion use between chuck. Available technology adopting three-pawl type chuck is for clamping drilling bit, and this mounting working chuck adoptsMetal is made, and complex structure, and therefore weight is large; And another mounting working chuck is used for clamping screwdriver bit, hold at screwdriver bitRow is twisted screw when work needs torque adjustment, conventionally fuselage near the output of output shaft be provided with mechanical controller structure forRealize torque adjustment, in the time that these complex structures, functional part that weight is large are applied on the drill gun instrument of this pair of mounting working chuck,The first side of center of gravity deflection filing appliance that makes complete machine, still has one section of horizontal range, thereby makes operation between center of gravity and handle grip portionPerson's its wrist in executable operations process is born torque, easily produces tired.

In addition, mounting working chuck needed first will remove connecting or work between mounting working chuck and output shaft before dislocationDo the locking of chuck and housing, in prior art, remove this operating parts that connects and lock away from handle setting, therefore operatorCannot utilize the hand of push switch to operate, must utilize this operating parts of another hand operated, this operating parts needs to protect conventionallyHold push action, only convert to mounting working chuck position, this manually carries out the instrument of mounting working chuck position conversion for needs, operator must remove switching motion with the hand of script gripping handle, and like this, operator can change hand operated continually,Operate extremely inconvenient, for particular job place, for example high-altitude, such operation is also dangerous.

Summary of the invention

For solving the technical problem of above technology, the invention provides a kind of rapid operation, handling good hand-hold type powerInstrument.

The present invention is achieved in that a kind of hand-hold power tool comprises housing, comprises handle grip portion; Motor, establishesBe placed in housing; Output shaft, drives rotation by motor; Work package, comprises at least two mounting working chucks; Switch, is arranged at handHandle grip part, for controlling motor; At least two mounting working chucks comprise respectively working shaft, work package be movably connected on housing fromAnd each mounting working chuck in described at least two mounting working chucks can change between operating position and off-position, at leastTwo mounting working chucks one of them in operating position, working shaft and the output shaft of this mounting working chuck axially connect, at least twoIn mounting working chuck, all the other mounting working chucks are in off-position, and the working shaft of these all the other mounting working chucks and output shaft are angle and establishPut; Hand-hold power tool also comprises that controlling organization comprises vicinity by the controlling organization of relative work package shell position lockingThe control piece of described switch, control piece moves setting relative to housing, and control piece is removed along moving away from work package direction to realizeThe locking position of work package and the disengagement of one of control output shaft and working shaft connect.

Preferably, working shaft is provided with the hexagon accepting hole for connecting working head.

Preferably, the coplanar setting of the axis of working shaft. Between the axis of working shaft, be angle setting, described angle is at 60 degreeTo 130 degree.

Preferably, the relative housing pivotable of work package arranges, the pivot axis of work package and output shaft axis coplanar andBoth are angle setting. At least two mounting working chucks are fixedly connected with and are symmetrical arranged with respect to the pivot axis of work package.

Preferably, the moving direction of control piece is parallel to output shaft. Controlling organization comprises the lock arranging with control piece interlockDetermine part, described locking piece is selectively thrown off or connects with work package.

Preferably, controlling organization also comprises the elastic component with control piece butt, and described elastic component provides control piece to drive lockDetermine the elastic force that part moves near work package.

Preferably, hand-hold power tool also comprises the arrangement of clutch arranging with locking piece interlock, described arrangement of clutch oneEnd is coupled to output shaft movably, and the other end is selectively thrown off and connects with one of working shaft. Controlling organization also comprises connectionThe connector of locking piece and arrangement of clutch, is provided with back-moving spring between described arrangement of clutch and output shaft.

Preferably, housing comprises main casing extending longitudinally, and described work package is connected in one end of main casing, described horseReach away from work package and be arranged in main casing, described handle grip portion and main casing are angle setting, hand-hold power toolAlso comprise power brick, power brick is connected in handle and away from main casing setting, the center of gravity of hand-hold power tool is positioned at handle and holdsHold portion.

Preferably, main casing comprises the main part for accommodating reduction box, and the leading section of close work package, main casingBody longitudinal axis to the distance at leading section top is less than to the distance at main part top. At least two mounting working chucks one of them in, main casing longitudinal axis to the distance at this mounting working chuck top is less than to the distance at leading section top when the operating position.

Preferably, hand-hold power tool also comprises electronic torque control device, for operationally regulating at least oneThe output torque of working shaft.

Preferably, hand-hold power tool also comprises the prompting mechanism that puts in place, described in the prompting mechanism that puts in place there is engagementAnd released state, when engagement, one of them arrives operating position described at least two mounting working chucks, when released state, and instituteState at least two mounting working chucks and leave operating position. The prompting mechanism that puts in place comprises and is arranged at one of housing and work packageAlignment pin, is arranged at another locating slot of housing and work package, and with the elastic component of alignment pin butt, described inAlignment pin selectively connects or throws off with described locating slot.

The control piece proximity switches of hand-hold power tool and the removable setting of housing relatively, and control piece edge is away from workAssembly direction moves and can realize the locking position of removing work package, can control again the disengagement of one of output shaft and working shaft and joinConnect, therefore, control piece one key operation is realized two actions, easy to operate. And the operation of control piece is consistent with switch moving direction,Fitted user's operating habit, makes the manipulation of hand-hold power tool, operates also safer. Due to hand-hold type power workThe center of gravity of tool is positioned at the grip part of handle, and wrist can be because irregular generation of instrument distribution of weight turns in the time of operation to make userSquare, thereby rapid operation.

Brief description of the drawings

Below in conjunction with accompanying drawing, the present invention is done to further detailed description.

Fig. 1 is the front view of embodiments of the invention hand-hold power tool.

Fig. 2 is the main apparent direction cutaway view of hand-hold power tool shown in Fig. 1.

Fig. 3 is the perspective exploded view of hand-hold power tool shown in Fig. 1.

Fig. 4 is the cross-sectional schematic along A-A direction in Fig. 2.

Fig. 5 is the perspective exploded view of Fig. 3 middle rack device.

Fig. 6 is the partial schematic sectional view of the main apparent direction of hand-hold power tool shown in Fig. 1.

Fig. 7 to Fig. 9 be when in Fig. 6, hand-hold power tool control piece moves to diverse location each state analyse and observe signalFigure.

Figure 10 is the cross-sectional schematic along B-B direction in Fig. 2.

Figure 11 is the cross-sectional schematic along C-C direction in Fig. 2.

Figure 12 is the front view of second embodiment of the invention hand-hold power tool.

Figure 13 is that in Figure 12, hand-hold power tool is removed the master of show internal structure after half shell and looked schematic diagram.

Figure 14 is the cross-sectional schematic of the main apparent direction of hand-hold power tool shown in Figure 12.

Figure 15 is the three-dimensional exploded view of hand-hold power tool in Figure 12.

Figure 16 is the vertical signal of the solid of sliding assembly in Figure 15.

Figure 17 is the structural representation of sliding sleeve after open and flat in Figure 16.

Figure 18 to Figure 22 is the state that second embodiment of the invention hand-hold power tool control piece moves to diverse locationSchematic diagram.

Figure 23 is the schematic perspective view of third embodiment of the invention hand-hold power tool.

Figure 24 is that in Figure 23, hand-hold power tool is removed the front view after working head.

Figure 25 is the partial left side view of hand-hold power tool in Figure 24.

Figure 26 is the main apparent direction cut-away view of hand-hold power tool in Figure 23.

Figure 27 is that in Figure 23, hand-hold power tool is removed the perspective exploded view after housing.

Figure 28 is that in Figure 23, hand-hold power tool is removed the top view after housing, and now control piece is in latched position.

Figure 29 is the cutaway view of D1-D1 direction in Figure 28.

Figure 30 is the cutaway view of E1-E1 direction in Figure 28.

Figure 31 is that in Figure 23, hand-hold power tool is removed the top view after housing, and now control piece is in the unlocked position.

Figure 32 is the cutaway view of D2-D2 direction in Figure 31.

Figure 33 is the cutaway view of E2-E2 direction in Figure 31.

In figure:

100-hand-hold power tool 2540-Y shape groove 318-control knob

10-housing 2541-straight-line groove 319-groove

10a-half shell 2542,2543-oblique trunking 320-portable lamp

12-main casing 2550-Y shape groove 32-reduction box

14-handle 2551-straight-line groove 32a-supporting surface

18-power brick 2552,2553-oblique trunking 330-controlling organization

18a-power brick housing 18a256-collar 34-rack gear arrangement

2-commutation trigger 26-mounting disc 35-clamp hook piece

200-hand-hold power tool 26b-locked groove 35a-hook part

20,20 ' ,-work package 260-tumbler 36-tooth bar

202-commutation trigger 263-gear part 36a-tooth bar notch

204-switch 264-support set 36b-tooth bar sidewall

206-output shaft 265-positioning bar 36c-perforate

206a-slotted eye 266-looping pit 36d-notch end wall

206b-key tooth 267-pin 37-clamp hook piece

2061-the first axle 268-location bearing 37a-hook part

The protruding axial region 27-of 2061a-shackle member 38-pivot

2061b-connecting portion 28-connector 39-torsion spring

2062-the second axle 28a-main component 4-switch

The protruding axial region 29-of 2062a-stage clip 40-control piece

2062-connecting portion 30-transmission device 41-actuating arm

2062c-cannelure 300-power tool 42-groove

208-motor 301-control piece 44-translot portion

210-housing 301a-unlocking knob 46a, 46b-chute portion

210a-half shell 301b-joint pin 50-cam

212-main casing 302-elastic component 51-screw

213-annular guide channel 303-locking piece 52-connecting pin

214-handle 304-side plate 53-lead

218-power brick 304a-accepting groove 54-connecting pin

22-mounting working chuck 304b-draw-in groove 6-output shaft

220-drill bit 305-connector 60-Passive part

22a-working shaft 306-side arm 62-connecting hole

230-transmission device 307-clutch cover 64-opening

232-reduction box 308-back-moving spring 70-gear assembly

24-mounting working chuck 309-alignment pin 71-connecting axle

24a-working shaft 310-casing 72-gear wheel

24b-accepting hole 311-elastic component 8-motor

240-screwdriver bit 312-main casing 80-transmission component

250-control piece 313-guide plate 82-travelling gear

251-connecting portion 315-lead 84-transmission arm

252-sleeve 316-output shaft

254-direction recess 317-control panel

Detailed description of the invention

Shown in Fig. 3, hand-hold power tool 100 of the present invention is provided with housing 10, and its middle shell 10 is by two KazakhstanHusband's formula half shell 10a connects to form. Dynamical system, comprises the motor 8 being contained in housing 10, and the motor 8 of the present embodiment adopts electricityMoving motor, motor that also can other type, such as air motor, fuel oil motor etc. substitute. Housing 10 comprises accommodates motor 8Main casing 12, and the handle 14 being connected with main casing 12, main casing 12 extends along the longitudinal direction, and handle 14 is with main casing 12Angle arranges. The main casing 12 of multifunction drill 100 setting substantially vertical with handle 14 in the present embodiment. On handle 14 away from horseReach one end of 8 and promising motor 8 is set the energy unit of energy is provided, what the energy unit in the present embodiment adopted is power brick18, power brick 18 is removably connected with handle 14, and power brick 18 comprises multiple rechargeable types that are contained in power brick housing 18aBattery, battery preferably adopts lithium battery. On handle 14, be provided with for the switch 4 of manually controlling motor 8 and change near main casing 12To trigger 2. The motor 8 of the present embodiment also can select to be arranged at handle 14.

The interior setting of main casing 12 is driven the output shaft 6 of rotation by motor 8, in the present embodiment, output shaft axis X 1 is along main casingBody 12 is extending longitudinally, and output shaft axis X 1 overlaps with motor axis; In other selectable scheme, output axis X1 and horseReaching axis can be parallel or be angle setting. Between output shaft 6 and motor 8, be provided with the transmission device 30 for slowing down, slow downTransmission device 30 is contained in reduction box 32; In the present embodiment, speed reduction gearing 30 is gear mechanisms, preferably adopts planetary gearMechanism.

Hand-hold power tool 100 comprises the work package 20 that is movably connected on housing 10; In the present embodiment, work package20 be positioned on main casing 12 away from motor 8 one end, the relative main casing 12 pivotable settings of work package 20, wherein work package 20Between pivot axis Y1 and output shaft axis X 1, be angle [alpha] setting, and pivot axis Y1 and output shaft axis X 1 is constant is located inIn coplanar state. Wherein this angle [alpha] is acute angle, and angular range is arranged between 30 degree and 65 degree, the angle [alpha] scope preferably adoptingBe 45 degree to 65 degree. Work package 20 comprises two mounting working chucks 22,24, and mounting working chuck 22 is fixedly connected with also with mounting working chuck 24And be arranged at symmetrically the both sides of pivotal axis Y1, mounting working chuck 22,24 is respectively arranged with working shaft 22a, 24a, working shaftBetween the axis of 22a, 24a, be angle beta setting, this angle beta is 2 times of angle [alpha]. When one of mounting working chuck 22,24 is in work, working shaft 22a, 24a axis and pivot axis Y1, output shaft axis X 1 are in same plane when the position. Working shaft 22a, 24a mono-End selectively connects with output shaft 6, and the other end is used for connecting working head. Work package 20 is so arranged so that its relative housingWhen 10 pivotable, mounting working chuck 22 can turn to and makes its working shaft and output shaft with at least one mounting working chuck in mounting working chuck 246 positions that connect, thus drive the working shaft of mounting working chuck to rotate by output shaft 6. In the present embodiment, work package 20 is around pivotableAxis Y1 is relative, and housing 10 is made reciprocating rotation, and the working shaft that causes mounting working chuck 22 and mounting working chuck 24 selectively or rotationGround connects with output shaft 6, thereby makes output shaft 6 alternatively drive the working head that is held on mounting working chuck 22,24 to be rotated workDo.

One of them is arranged for clamping drilling bit 220 mounting working chuck 22 and mounting working chuck 24, and another mounting working chuck canDesigning according to actual needs, for example, can be arranged for clamping screwdriver bit, can be also for sand milling for clampingSmall abrasive nose etc. In another kind of selectable scheme, one of them is arranged for clamping mounting working chuck 22 and mounting working chuck 24Screwdriver bit 240, another mounting working chuck can design according to actual target. In the present embodiment, mounting working chuck 22 useIn clamping drilling bit 220, mounting working chuck 24 is for clamping screwdriver bit 240.

Multifunction drill 100 comprises the movable control piece 40 arranging of relative housing 10, and is arranged at control piece 40 and workMake the power train between assembly 20, by power train, the motion of control piece 40 operationally drives two mounting working chucks 22,24 realBetween operating position and collecting position, exchange now, that is to say, the motion of control piece 40 operationally makes output shaft 6 and filing appliance22,24 selectively connect. Control piece 40 is arranged at the outside of main casing 12, the control piece 40 of the present embodiment housing 10 relativelyAxially move linearly along output shaft, and be operationally displaced into the top of main casing 12 with the form of slip lid, can be used for coveringBe positioned at least partly the cassette mechanism structure of housing 10. Certainly, those skilled in the art can also can be arranged to operating knob by control pieceDeng other form.

Power train comprises the first transmission mechanism and the second transmission mechanism, and the linear movement of control piece 40 is by the first transmissionMechanism operationally controls one of mounting working chuck 22,24 and connects or separate with output shaft 6, meanwhile, and the linearity of control pieceMove through the second transmission mechanism and operationally control relative housing 10 pivotables of work package.

The first transmission mechanism connects or separates, second with output shaft 6 for alternatively controlling mounting working chuck 22,24Transmission mechanism is used for controlling work package 20 and rotates relative to housing 10.

The first transmission mechanism comprises the actuator 50 that is driven rotation by control piece 40, the Passive part 60 being driven by actuator,The connector 28 being driven by Passive part 60, connector 28 one end are connected with output shaft 6, the other end selectively with mounting working chuck22, one of 24 connect or throw off, that is to say, connector 28 one end are connected with output shaft 6, the other end selectively with workOne of axle 22a, 24a connect or throw off.

Shown in Fig. 3, on control piece 40, be provided with the first drive division, on actuator 50, be provided with the first drive division and joinThe driving section connecing. The first drive division is the groove 42 (with reference to Fig. 4) that is arranged at control piece 40 inner surfaces, and actuator 50 can be solid around oneDetermine pivot axis and rotate forward or backwards, actuator 50 between control piece 40 and reduction box 32, the actuator of the present embodimentAdopt cam 50, what cam 50 rotated by screw 51 is arranged in the lead 53 of reduction box 32, and cam 50 is with lead 53Center line as pivot axis. Wherein driving section is to be arranged on cam 50 near first on the first end face of control piece 40Connecting pin 52, the first connecting pins 52 engage and connect with groove 42, and the second end face relative with the first end face on cam 50 is provided withConnecting pin 54, connecting pin 54 extends in opposite direction with connecting pin 52.

Passive part 60 is arranged between reduction box 32 and main casing 12, and the one end near cam 50 on Passive part 60 is provided withWith the first connecting portion that connecting pin 54 connects, the shape of the connecting hole 62 that this first connection part structure one-tenth reception connecting pin 54 insertsFormula. On Passive part 60, be provided with the second connecting portion, this second connection part structure becomes the form of draw-in groove 64. By connecting pin 54, driveRotatablely moving of moving part can be converted to Passive part along the movement that is parallel to output shaft axis. Actuator forward rotation drives Passive partAxially move away from work package 20 along output shaft, actuator rotates backward and drives Passive part along the axially close working group of output shaftPart 20 moves.

Connector 28 is arranged between work package 20 and output shaft 6, and can move axially along output shaft 6 connector bagDraw together main part 28a and be coupled to the Access Division 27 of main part 28a, main part 28a is sliding with form and output shaft 6 one end of sleeve pipeMove and connect, the other end with can alternatively connect with working shaft 22a, the 24a of mounting working chuck 22,24. The periphery of main part 28a arrangesFlexible, the elastic component of the present embodiment adopts stage clip 29; It is upper near one of output shaft 6 that Access Division 27 is connected in main part 28aEnd is for connecting with Passive part 60 draw-in grooves 64, and Access Division 27 is socketed in the peripheral surface of main part 28a movably, main part28a end arranges collar (not shown) for spacing, Access Division 27 can be defined in to main part 28a and above be unlikely to depart fromMain part 28a; Main part 28a is in the time of initial position, and Access Division 27 is connected to collar under the effect of elastic component 29.

Shown in Fig. 2, Fig. 4, the groove 42 of control piece 40 medial surfaces, connecting pin 52 is engaged in groove 42 slippinglyIn. The groove 42 of the present embodiment is arranged to the ︺ type groove along main casing 12 bearing of trends, and ︺ type groove comprises and is positioned at central translotPortion 44 and be positioned at translot portion 44 two ends and symmetrical chute portion 46a, 46b. In groove 42, contain and can in groove, slideThe connecting pin 52 moving, when original state, connecting pin 52 be positioned at the cecum of chute portion 46a, 46b and with cell wall against.

When control piece 40 moves by the output shaft axis direction that is parallel to shown in arrow M in initial position along main casing 12Time, the connecting pin 52 that is engaged in groove 42 moves along the chute portion 46a of groove 42, and connecting pin 52 is through shift motion a, cam 50Press direction pivotable shown in arrow R1 around lead 53 axis, connecting pin 54 rotates accordingly with cam 5, the rotation band of connecting pin 54The moving Passive part 60 connecting with it along output shaft axially to moving away from work package 20; In the present embodiment, Passive part 60 and controlProduct 40 moving directions are consistent. The movement of Passive part 60 causes the Access Division 27 connecting with draw-in groove 64 to drive main part 28a with quiltMoving part 60 moves, and causes main part 28a one end and working shaft 22a that script and the working shaft 22a of mounting working chuck 22 connect to throw off.Once main part 28a separates with working shaft 22a, can allow the relative housing 10 of work package 20 to carry out pivotable; Connecting pin 52 is in tiltedlyWhen slot part 46a moves, drop to translot portion 44 by the top of chute portion 46a, the stroke a that connecting pin 52 is passed by is control piece 40Release stroke. When the connecting pin 52 that is engaged in groove 42 moves along the translot portion 44 of groove 42, cam 5 does not rotate. Work as engagementConnecting pin 52 in groove 42 moves along the chute portion 46b of groove 42, and connecting pin 52 rises to chute portion 46b's from translot portion 44Top, now cam 5 rotates backward along direction shown in arrow R2.

The second transmission mechanism comprises the rack gear arrangement being driven by control piece 40, the gear assembly 70 being connected with rack gear arrangement,And being driven the transmission component 80 of rotation by gear assembly 70, transmission component 80 is for driving relative housing 10 pivots of work package 20Turn.

Shown in Fig. 5, Fig. 6, on control piece 40, be also provided with the second drive division, second drive division of the present embodiment is for establishingBe placed in the actuating arm 41 of control piece 40, rack gear arrangement 34 is arranged between control piece and reduction box 32, rack gear arrangement 34 comprise withThe maintenance assembly that actuating arm 41 connects, and for the tooth bar 36 of supporting movement device, keep assembly there is lock-out state and releasePut state, when keeping assembly in release conditions, actuating arm 41 driving gear strip devices move axially along output shaft, when keeping assemblyBe in the lock state, actuating arm 41 can not move axially along output shaft by driving gear strip device. The maintenance assembly of the present embodiment comprisesThe a pair of clamp hook piece 35,37 that is arranged at rotationally tooth bar 36, clamp hook piece 35,37 is along output shaft axial distribution, and actuating arm 41 can be graspedMake ground along output shaft axially-movable.

Clamp hook piece 35,37 has latched position and off-position, and when clamp hook piece 35,37 is in off-position, control piece 4 is logicalThe arm 41 driving gear strip devices 34 of overdriving move along being parallel to output shaft axis, when clamp hook piece 35,37 one of them in lockingPosition, control piece 4 can not move by driving gear strip device 34 by actuating arm 41. The end of tooth bar 36 is formed with along tooth bar extension sideTo notch 36a, the two side 36b of notch 36a is respectively arranged with perforate 36c, clamp hook piece 35,37 is by being arranged in tooth bar sidewallThe pivot 38 of 36b perforate 36c is arranged in the notch 36a of tooth bar 36 one end rotationally. On clamp hook piece 35,37, be respectively arranged with bulletProperty part, the present embodiment elastic component adopt torsion spring 39.

Shown in Fig. 6, actuating arm 41 is arranged at the medial surface of control piece 40 and protrudes to housing 10 is inner. Clamp hook piece35,37 have the prestressing force that protrudes from notch 36a to control piece 40 directions under the effect of torsion spring 39. When control piece 40 at the beginning ofBeginning is when state, and the hook part 35a of the first clamp hook piece 35 is subject to the withstand effect of actuating arm 41 to overcome torsion spring 39 active forces to turn to the insideMove to stretching out notch 36a.

With reference to shown in Fig. 4 to Fig. 7, when control piece 40 is by being parallel to the relative housing of output shaft axis direction shown in arrow M10 when move, and actuating arm 41 moves with control piece 40, in the process that actuating arm 41 moves relative to rack gear arrangement 34, to firstClamp hook piece 35 to compress power more and more less, until the hook part 35a of the first clamp hook piece 35 returns back to groove under torsion spring 39 active forcesMouth 36a is interior and engage clamping with the end wall 36d of tooth bar notch 36a. Now, further move control piece along direction shown in arrow M40, it is upper that first, second clamp hook piece 35,37 is supported in reduction box 32 supporting surface 32a, and actuating arm 41 acts on first, second snap fitPart 35, thus between 37, drive rack gear arrangement 34 entirety to move along direction shown in arrow M. As previously mentioned, the relative shell of control piece 40Body 10 moves, and in the time that connecting pin 52 moves to translot portion 44 intersection location in the first chute portion 46a, release stroke a completes,Work package 20 can allow relative housing 10 to carry out pivotable. In Fig. 7, the current location of control piece 40 is that actuating arm 41 starts bandThe initial position of carry-over bar device 34 integrated movings. Now, further move control piece 40, actuating arm along direction shown in arrow M41 is close to the second clamp hook piece 37.

Shown in Fig. 4, Fig. 8, connecting pin 52 starts at translot in the first chute portion 46a position crossing with translot portion 44The interior movement of portion 44 also relies on the second chute portion 46b, and connecting pin 52 is the switching of control piece 40 in the shift motion b of translot portion 44Stroke, work package 20 rotates around pivot axis Y1 relative to housing 10. When control piece 40 further moves along direction shown in arrow MMoving, actuating arm 41 compresses the second clamp hook piece 37, and to make its hook part 37a overcome elastic force protruding in tooth bar notch 36a inner side, hook part37a departs from supporting surface 32a. When connecting pin 52 arrives translot portion 44 and the second chute portion 46b intersection location, control piece 40 actuating arms41 throw off with hook part 37a, and control piece 40 claims moving rack gear arrangement 34 integrated movings that no longer drive. Connecting pin 52 is in translot portion 44Shift motion b, does not cause cam 50 to be further rotated and being moved further of moving member 60 around lead 53 center lines, andThe relative housing 10 of work package 20 turns over 180 degree.

Shown in Fig. 4, Fig. 9, when work package 20 rotations cause its mounting working chuck 24 to turn to operating position, now workDo axle 24a rotation to the position of substantially aliging with main part 28a. Further move control piece 40 to moving along direction shown in arrow MThe extreme position of moving direction, connecting pin 52 enters the second chute portion by translot portion 44 and the second chute portion 46b intersection location slippage46b against the end wall of the second chute portion 46b, connecting pin 52 is control piece 40 in the shift motion c of the second chute portion 46bThe stroke that locks, in this shift motion c, control piece 40 no longer drives rack gear arrangement 34 to move. Due to the second chute portion 46b and firstChute portion 46a is symmetrical arranged about translot portion 44, and when therefore connecting pin 52 moves in the second chute portion 46b, connecting pin 52 is withMoving cam 50 turns round along R2 direction around lead 53 center lines. The revolution of cam 50 drives Passive part 60 along moving with control piece 40Rightabout move. Passive part 60 promotes Access Division 27 and overcomes stage clip 29 active forces and drive main part 28a together to closeMounting working chuck direction moves, thereby makes main part 28a by returning back to the working shaft 22a disengaged position of mounting working chuck 22 beforeThe position that the working shaft 24a of output shaft 6 and mounting working chuck 24 is connected. Once output shaft 6 connects and puts in place with working shaft 24a,Complete the position conversion between one action chuck 22,24, output shaft 6 drives the mounting working chuck 24 connecting with it to rotate. And workMake chuck 22 owing to turning to off-position, thereby cannot drive rotation by output shaft 6.

The stage clip 29 of the present embodiment plays a part again back-moving spring simultaneously, because main part 28a and working shaft 24a connectAfter bear the function of transmitting torque, therefore the end that connects of working shaft is arranged to spline tooth conventionally, main part 28a connects endBe arranged to accordingly accommodate the spline (with reference to Figure 11) of spline tooth, when main part 28a connects returning back to working shaft 24aIn process, due to reasons such as manufacturing tolerances, spline tooth and spline likely have angular misalignment, that is to say working shaft 24aConnect end spline tooth be not contained in the spline of main part 28a, but at main part 28a the active force at spring 29, itsConnect end spline and be tight against against working shaft spline tooth, once starter 8, output shaft 6 drives main part 28a rotation, main bodyThe spline of the 28a of portion relative spline tooth turns over an angle, and main part 28a makes spline under the resilient force of spring 29Engage with spline tooth, that is to say, main part 28a is automatically reset to the position connecting with working shaft 24a.

Control piece 40 moves to extreme position along moving direction from initial position, thus make output shaft 6 with at least twoOne of mounting working chuck 22,24 is thrown off, and another of at least two mounting working chucks 22,24 is switched to the position connecting with output shaft 6.Wherein, control piece 40 is moved in extreme position process by initial position, output shaft 6 and described at least two mounting working chucks 22,One of 24 first throw off, then relative housing 10 pivotables of work package 20, final output shaft 6 and at least two mounting working chucks 22,24Another connect.

Those skilled in the art it is contemplated that, the relative housing 20 of control piece 40 complete once along arrow M complete unidirectionalSlippage, completes at least two mounting working chucks 22 and changes at diverse location with mounting working chuck 24. Control piece 40 is along being parallel to outputThe direction of axle moves to the extreme position away from work package 20 from the initial position near work package 20, thereby makes outputAxle 6 is thrown off with one of described at least two mounting working chucks 22,24, another of at least two mounting working chucks 22,24 be switched toThe position that output shaft 6 connects. Control piece 40 is moved in extreme position process by initial position, output shaft 6 and described at least twoOne of individual mounting working chuck 22,24 is first thrown off, then relative housing 10 pivotables of work package 20, and final output shaft 6 is with at least describedAnother of two mounting working chucks 22,24 connects.

As shown in by arrow M, be parallel to the reverse mobile control piece 40 of output shaft axis direction, complete once complete cunningMove, by the first transmission mechanism and the second transmission mechanism, can make mounting working chuck 22 and the position of mounting working chuck 24 again change,Be replaced by by mounting working chuck 22 and output shaft 6 and connect by output shaft 6 and drive rotation by mounting working chuck 24, do not repeat herein.

Shown in Fig. 3, Figure 10, Figure 11, gear assembly 70 is arranged in main casing 12, and transmission component 80 is arranged at main casingBetween body 12 and work package 20. Gear assembly 70 comprises the gear wheel 72 with tooth bar 36 engaged transmission, and passes through connecting axle71 pinions 74 that are coaxially fixedly installed with gear wheel 72, the pinion 74 of the present embodiment is arranged to helical gear. Wherein transmission groupPart 80 comprises the transmission arm 84 being connected with the travelling gear 82 of pinion 74 engaged transmission and with travelling gear 82, Qi ZhongchuanMoving gear 82 is also arranged to helical gear, and the helical angle of pinion 74 and travelling gear 82 is all arranged to 45 degree, hands over implementation spaceWrong through-drive. Transmission arm 84 is connected with work package 20, to such an extent as in the time that tooth bar 36 drives gear wheel 72 to rotate, pinion 74 producesRaw corresponding rotation, thus drive travelling gear 82 to rotate around its axial line, and travelling gear 82 rotates and drives transmission arm 84 and workMake assembly 20 and rotate around the axial line of travelling gear 82, the pivot of the axial line of travelling gear 82 and work package 20 in the present embodimentShaft axis Y1 coaxial line, transmission arm 84 is arranged to transmission hook.

With reference to shown in Figure 12 to Figure 15, the hand-hold power tool 200 of second embodiment of the invention and the first embodiment toolHave similar structures, for explaining conveniently, identical structure does not repeat, and different structures is below being described specifically.

Hand-hold power tool 200 has housing 210, and by two Hafu-types, half shell 210a forms, and motor 208 is contained in masterHousing 212, handle portion 214 one end and main casing 212 are angle setting, and this angle is in 90 degree left and right; Handle portion 214 other ends canBe connected with power brick 218 to dismounting, power brick 218 comprises multiple Rechargeable batteries; Close main casing 212 in handle portion 214Position be provided for switch 204 and the commutation trigger 202 of manually controlling motor 208.

In main casing 220, be provided with the output shaft 206 being driven by motor 208, output shaft axis X 2 overlaps with motor axis.Output shaft 206 is provided with the transmission device 230 for slowing down with motor 208, and transmission device 230 is contained in reduction box 232.

Hand-hold power tool 200 comprises the work package 20 ' that is movably connected on housing 210; Work package 20 ' is relatively mainHousing 212 pivotable settings. Between the pivot axis Y2 of work package 20 ' and output shaft axis X 2, be angle [alpha] setting. Work packageTwo mounting working chucks 22,24 of 20 ' are fixedly connected with and are arranged at symmetrically the both sides of pivotal axis Y2, mounting working chuck 22,24Be respectively arranged with working shaft 22a, 24a, working shaft 22a, the 24a center line on its bearing of trend is angle beta setting. Filing appliance22 for clamping drilling bit 220, and mounting working chuck 24 is for clamping screwdriver bit 240.

On main casing 212, be provided with sliding assembly, sliding assembly comprises the control piece that is movably set in main casing 212 outsidesAnd be arranged at the sliding component of main casing 212 inside. Between control piece and work package 20 ', be provided with power train, by transmissionSystem, the motion of control piece operationally drives work package 20 ' pivotable, realizes two mounting working chucks, 22,24 positions and mutually changes.

Power train comprises the sliding component being driven by control piece, and is driven the tumbler of rotation, sliding component one by sliding componentEnd connects with output shaft 206, and the other end is selectively thrown off or connects with one of mounting working chuck, and tumbler is used for driving working groupThe relative housing pivotable of part 20 '.

The control piece 250 of the present embodiment is also the top that is arranged at movably main casing 212 with slip lid form, sliding componentBe arranged at movably main casing 212 inside with the form of sleeve 252. Tumbler 260 drives rotation by sleeve 252, Qi ZhongtaoCylinder 252 is fixedly connected with control piece 250 by connecting portion 251. Sleeve 252 is along being circumferentially provided with direction recess 254, sleeve 252With output shaft 206 matched in clearance, to such an extent as in the time that output shaft 206 drives rotation by motor 208, sleeve 252 is not with output shaft 206Rotation.

The output shaft 206 of the present embodiment comprises that the first axle 2061 and the second axle 2062, the first axles 2061 are provided with slotted eye206a, arranges key tooth 206b on the second axle 2062, by key tooth 206b and slotted eye 206a, the first axle 2061 and the second axle 2062 are livedMoving connecting together, the first axle 2061 rotarily drives the second axle 2062 and rotates together, and the second axle 2062 can along output shaft axis X 2Relative the first axle 2061 Linear-movings. The first axle 2061 and the second axle 2062 arrange respectively at the roughly centre position of bearing of trendHave the protruding axial region 2061a, the 2062a that radially protrude, tumbler 260 covers are arranged at outside protruding axial region 2061a, the 2062a of output shaftSide and with output shaft 206 matched in clearance, output shaft 206 rotation can not drive tumbler 260 to rotate.

The support set 264 that tumbler 260 comprises gear part 263 and fixedly connects with gear part 263, outside support set 264The face of enclosing is provided with the positioning bar 265 radially outward protruding. The periphery of support set 264 is further provided with a pair of passiveLocation bearing 268, location bearing 268 is meshed with main casing 212 to such an extent as to location bearing 268 can rotate relative to main casing 212But can not move relative to main casing 212, location bearing 268 is arranged at the homonymy of positioning bar 265, one of them location bearing 268With positioning bar 265 butts, thereby restriction tumbler 260 moves relative to main casing 212, but tumbler 260 main casing relatively212 rotate.

Gear part 263 is arranged to annular, and gear part 263 is sheathed on the end of support set 264, and will support by pin 267Cover 264 and ring gear portion 263 are fixed connection, the looping pit 266 that gear part 263 is stretched in pin 267 one end and sleeve 252Direction recess 254 is meshed.

The connecting portion 2062b that sleeve 252 is coupled to the second axle 2062 by collar 256 is upper, that is to say, sleeve 252 is solidDue between the protruding axial region 2062a and collar 256 of the second axle 2062; When control piece 250 is during in initial position, sleeve 252 withOne of working shaft 22a, 24a of mounting working chuck connect, to such an extent as to motor 208 can drive the mounting working chuck connecting with sleeve 252. WhenIt is mobile that control piece 250 is with moving sleeve 252 to be started by initial position, and sleeve 252 is with the second axle 2062 together relative the first axle2061 move, and mobile result is that first sleeve 252 is thrown off and connected with one of working shaft 22a, 24a, and control piece 250 further movesKinetic energy makes the relative main casing 212 of tumbler 260 around output shaft axis X 2 pivotables. Owing to being correspondingly provided with on work package 20 'With the gear part (not shown) of gear part 263 engaged transmission, such structure makes tumbler 260 around output shaft axis X 2When rotation, drive work package 20 ' to rotate around pivotal axis Y2.

With reference to Figure 14, the protruding axial region 2062a of output shaft the second axle 2062 is provided with cannelure 208, the effect of this cannelureThat the connecting portion 2061b of the first axle 2061 can stretch into this annular when the second axle 2062 is in the time that the first axle 2061 moves and be closeIn groove 2062c, such design can be dwindled the development length of main casing 212, and overall volume diminishes, weight lightens, hand-heldPower tool operation is lighter and handier.

With reference to Figure 14, Figure 15, the position near work package 20 ' on main casing 212 is provided with annular guide channel 213, workOn assembly 20 ', be provided with engagement and be connected in the mounting disc 26 in guide groove 213, when work package 20 ' is in the time that pivotal axis Y2 rotates,Mounting disc 26 is in the interior rotation of annular guide channel 213, and such structure makes to rotate more flexible.

Shown in Figure 16,17, the direction recess 254 of the present embodiment by two side by side and be communicated with the Y shape groove 2540 that arranges,2550 compositions. Wherein first Y shape groove 2540 comprises straight-line groove 2541, and the oblique trunking being extended to both sides by straight-line groove 25412542,2543, the two Y shape grooves 2550 comprise straight-line groove 2551, and the oblique trunking being extended to both sides by straight-line groove 25512552,2553. Wherein the extending end of oblique trunking 2542 is connected with the extending end of oblique trunking 2552, the prolonging of oblique trunking 2553Stretching end is connected with the extending end of oblique trunking 2543.

Shown in Figure 17, Figure 18, when control piece 250 is during in initial position, pin 267 is engaged in the beginning of straight-line groove 2541End, now mounting working chuck 24 is in operating position, and sleeve 252 connects (with reference to Figure 14) with the working shaft 24a of mounting working chuck 24.

Shown in Figure 17, Figure 19, when control piece 250 moves by the output shaft axis direction that is parallel to shown in arrow M1Time, band moving sleeve 252 moves thereupon, and pin 267 tops in straight-line groove 2541 are to the terminal slippage of straight-line groove 2541, when pin 267While sliding onto the terminal of straight-line groove 2541, sleeve 252 is thrown off and is connected with the working shaft 24a of mounting working chuck 24, passive in this process212 maintenances of the relative main casing of part 260 are static.

Shown in Figure 17, Figure 20, control piece 250 further moves to extreme position along direction shown in arrow M1, pin 267Terminal slippage in straight-line groove 2541 enters oblique trunking 2542, and close to the terminal of oblique trunking 2542, in this process, and sleeve252 drive tumbler 260 to rotate around output shaft axis X 2. Because sleeve 252 is thrown off and joined with the working shaft 24a of work package 20 'Connect, therefore tumbler 260 drives work package 20 ' around pivot axis Y2 rotation by gear part 263, in this process, and working groupPart 20 ' turns over 90 degree around pivot axis Y2, and control piece 250 has now moved to, default energy moves relative to main casing 212Extreme position.

With reference to shown in Figure 17 to Figure 21, in order to rotate to operating position by mounting working chuck 22, need to further make working groupPart 20 ' revolved 90 degree around pivot axis Y2. Now along with shown in arrow M1, be oppositely that shown in arrow M2, direction moves control piece250, pin 267 enters oblique trunking 2550 in the terminal slippage of oblique trunking 2542, and close to the terminal of oblique trunking 2550, sleeve252 drive tumbler 260 to be further rotated around output shaft axis X 2, and work package 20 ' turns over 90 degree again around pivot axis Y2,Be that work package 20 ' rotates altogether 180 degree around pivot axis Y2, mounting working chuck 22 rotates to operating position.

Shown in Figure 17, Figure 22, when moving, moves output shaft axis direction control piece by being parallel to shown in arrow M2250 return back to initial position, and pin 267 enters straight-line groove 2551 in the terminal slippage of oblique trunking 2550, and near straight-line groove 2551Terminal, now sleeve 252 moves to initial position with control piece 250, and sleeve 252 is realized and being joined with the working shaft of mounting working chuck 22Connect, in this process, 212 maintenances of the relative main casing of Passive part 260 are static.

In sum, control piece 250 moves back and forth once along being parallel to output shaft axis direction, and work package 20 ' extremelyFew two working heads are in different position conversions. Those skilled in the art it is contemplated that, control piece 250 is along being parallel to output shaft axleLine moves to extreme position and moves in opposite direction initial position from extreme position in initial position, thereby makes output shaft206 throw off with one of at least two mounting working chucks 22,24, and another of at least two mounting working chucks 22,24 is switched to can be with defeatedThe position that shaft 206 connects. Control piece 250 moves in the process that extreme position moves in initial position, output shaft 206 and instituteState one of at least two mounting working chucks 22,24 and first throw off, then relative housing 10 pivotables of work package 20; Control piece 250 is in the utmost pointExtreme position moves in the process of initial position, relative housing 10 pivotables of work package 20, and then output shaft 206 is with at least describedAnother of two mounting working chucks 22,24 connects.

With reference to Figure 23 to Figure 33, the hand-hold power tool 300 of third embodiment of the invention is another of the first embodimentPlant distortion. For explaining conveniently, identical structure represents and do not repeat with identical numbering, and different structures will be belowBe described in detail.

With reference to shown in Figure 23 to Figure 26, hand-hold power tool 300 comprises controlling organization 330, for by work package 20Housing 310 positions lock relatively. Only have the controlling organization 330 of working as to remove the locking to work package 20, work package 20Could rotate relative to housing 310 around pivot axis Y3, thereby make the mounting working chuck 22,24 can be respectively in operating position and inoperative positionConversion between putting, when the operating position of one of mounting working chuck 22,24 in axially connecting with output shaft 316 the, in mounting working chuck 22,Another of 24 is in being axially the off-position of angle with output shaft.

Housing 310 comprises the main casing 312 extending longitudinally, and work package 20 is arranged at one of main casing 312 activelyEnd, motor 8 is arranged in the main casing 312 away from work package 20, and output shaft 316 extends longitudinally in main casing 312, outputAxle axis X 1 overlaps with motor axis. Hand-hold power tool 300 is also provided with portable lamp 320, the work of the embodiment of the present inventionLamp 320 is arranged at the top of main casing 312 near the position of work package 20, and portable lamp 320 can be in the feelings of lighting condition deficiencyUnder condition, for illuminating the working region in hand-hold power tool 300 fronts, portable lamp preferably adopts LED lamp. In this enforcement, workLamp 320 is by switch 4 control work; Certainly portable lamp 320 also can otherwise independently be controlled, according to condition of work optionallyOpen.

Handle 14 one end are connected with main casing 312, and the other end connects power brick 18. Mounting working chuck 22,24 is respectively arranged withWorking shaft 22a, 24a. With reference to Figure 25, working shaft 22a, 24a are respectively equipped with the hexagon accepting hole (figure for connecting working headThe accepting hole 24b of working shaft 24a is only shown), to such an extent as to the screwdriver bit, the drill bit that are provided with six side's handles can be installed rapidly or tear openUnload, removed from such as the locking of three-pawl type mounting working chuck or the cumbersome process of releasing operation. The structure of mounting working chuck 22,24 changesGood, make work package 20 overall structures compacter.

Initial taking mounting working chuck 22 free terminals when the operating position as hand-hold power tool 300 complete machine lengthPosition, using on housing 310 away from the afterbody of mounting working chuck 22 terminal location as complete machine length L 1, hand-hold power tool300 center of gravity G is L2 to the distance of the free terminal of mounting working chuck 22, and this distance L 2 accounts for 7/10 of complete machine length L 1, alsoBe to say, the position of the center of gravity G of hand-hold power tool 300 is arranged near the holding area of handle 14, thereby makes hand-held workTool can be avoided, because center of gravity produces torque near work package 20 to operator's wrist portion, reducing operation tired in operation processLao Du. And the hand-held electric power instrument 300 of the present embodiment operates light and handy, easy to carry.

In present embodiment, the longitudinal axis of main casing 312 overlaps with output shaft axis X 1, and main casing 312 longitudinally prolongs at itStretch and in direction, comprise the main part of accommodating motor 8 and reduction box 32, and arrange and for accommodating control near work package 20The leading section of mechanism 330. Longitudinal axis to the distance at the main part top of main casing 312 is H1; Longitudinal axis is to main casing 312The distance H 2 of end top; One of mounting working chuck of work package 20 is in the time of operating position, and longitudinal axis is to being somebody's turn to do in working positionThe distance at the mounting working chuck top of putting is H3; In the present embodiment, distance H 3 is less than distance H 2, and distance H 2 is less than distance H 1. Main casingThe housing height of body 312 so arranges, and makes the working head that is contained in mounting working chuck in small space or special angle positionWhen execution work, the accessibility of the relative workpiece of working head is good, avoids working head owing to being subject to the volume of main case or the limit of shapeMake and cannot enter this space.

Be provided with the control knob 318 of control torque near handle 14 ends of power brick 18, when mounting working chuck 24 is converted to, in mounting working chuck 24, clamping has screwdriver bit 240 for carrying out the screw work of twisting, can be by regulating control knob when the operating position318 adjust the required output torque of screwdriver bit 240 execution works.

With reference to Figure 27, control knob 318 is electrically connected with the control panel 317 that is arranged at handle 14, in control panel 317, is integrated withAdjustable resistance or electric capacity, operation control knob 318 can make resistance or capacitance change, and control panel 317 has been realized electronics mode and has been enteredRow torque adjustment. With respect to routine setting, mechanical device is namely set in main casing and mechanically carries out moment of torsion tuneWhole, the mode of the electronics mode control torque of the present embodiment is because parts are few, thereby more compact structure, instrument weight saving;By effectively utilizing the inner space of instrument, make body of tool volume less, operate more flexible.

With reference to shown in Figure 27 to Figure 30, controlling organization 330 comprises for manually operated control piece 301, is arranged at control piece301 and housing 310 between elastic component 302, wherein elastic component 302 and control piece 301 elasticity butts, exist control piece 301Under normal condition, be held in latched position. Control piece 301 proximity switches 4 and move setting relative to housing 310, particularly, controlThe moving direction of part 301 is parallel to output shaft axis X 1. Control piece 301 comprises the unlocking knob 301a that exposes to housing 310, andExtend into the mating part in housing 310, mating part comprises a pair of joint pin 301b. Particularly, match around the boundary line is in switch 4 and decelerationBetween case 32. Control piece 301, along moving away from work package 20 directions, is realized locking position and the control of removing work package 20Output shaft 306 is thrown off and is connected with one of working shaft 22a, 24a.

The set-up mode that control piece 301 is such makes operator to realize gripping handle with the hand of gripping handle 14 simultaneously14 and the motion of control piece 301, be also with carrying out on the other hand the operation of switch 4. And another hand of operator can execution workOther work such as the position conversion of chuck 22,24, and do not need both hands to change frequently operation. In addition, when control piece 301 releaseMoving direction meet user's operating habit, that is to say, to moving control piece 301 away from work package 20 directions, removeThe locking position of work package 20 relative housings 310, control piece 301, to moving near work package 20 directions, makes work packageThe position of 20 relative housings 310 locks.

Controlling organization 330 also comprises the locking piece 303 being driven by control piece 301, the connector being driven by locking piece 303305. The locking piece 303 of the present embodiment is arranged to double end jam plate, an end face setting of close work package 20 on double end jam plateBecome inverted U-shaped, double end jam plate comprises a pair of along the extension of output shaft direction and interconnective side plate 304. This inverted U-shaped endFace selectively connects or throws off with work package 20, and in the time that U-shaped end face and work package 20 connect, work package 30 locksIn casing 310; In the time that U-shaped end face and work package 20 are thrown off, elastic component 302 provides control piece 301 to drive locking piece 303 closeThe elastic force that work package 20 moves, work package 30 discharges from latched position; Thereby casing 310 is around pivotal axis relativelyThe position conversion of mounting working chuck is carried out in Y3 rotation. Between work package 20 and output shaft 316, be provided with connector 305 interlocks and joinThe arrangement of clutch connecing; The arrangement of clutch of the present embodiment is arranged to be socketed on movably the clutch cover 307 on output shaft 316. ClutchOne end near output shaft 316 on cover 307 is provided with back-moving spring 308, and clutch cover 307 is optional away from one end of output shaft 316Select with one of working shaft 22a, 24a and axially connect or throw off.

On side plate 304, there is respectively accepting groove 304a, accepting groove 304a be oppositely arranged for respectively with the company of control piece 301Meeting post 301b connects. Side plate 304 is also provided with the draw-in groove 304b of pair of opposing. Connector 305 is contained in locking piece 303 and formsSpace in and connect with locking piece 303 together with. Particularly, connector 305 comprises a pair of side arm 306, and connects side arm306 transverse arm; Wherein side arm 306 is positioned at pair of side plates 304 inner sides and is parallel to each other with side plate 304, and transverse arm and side arm 306 are roughlyVertically, on transverse arm, be provided with the U-lag mouth 306b connecting with clutch cover 307, on side arm 306, arrange respectively laterally and protrude laterallyAccess Division 306a, for connecting with side plate 304 draw-in groove 304b.

Control piece 301, locking piece 303, connector 305 and the clutch cover 307 of controlling organization 330 so connect, and makeThe active force that overcomes elastic component 302, back-moving spring 308 as operator promotes control piece 301 to be made it to away from work package 20When direction slides onto unlocked position, control piece 301 drives double end jam plate to be parallel to output shaft 316 and moves, and double end jam plate movesDrive connector 305 to move along equidirectional simultaneously, thus drive clutch cover 307 on output shaft 316 to away from work package30 direction slides onto with one of working shaft 22a, 24a throws off and connects. When clutch cover 307 slide onto with working shaft 22a, 24a itOne throw off position time, locking piece 303 correspondingly moves to the position of throwing off with work package 20. Now operator is by relativeCasing 310 pivotable work packages 20, change mounting working chuck 22,24 positions.

Once mounting working chuck 22,24 positions start conversion, operator gets final product release control part 310, when mounting working chuck 22,24Position converts, and control piece 310 can automatically return to latched position under the effect of elastic component 302; Now, clutch cover 307Under the active force of back-moving spring 308, automatically return to the position connecting with one of working shaft 22a, 24a, make work package 20Casing 310 positions lock relatively, now make motor running drive working head to carry out relevant work by trigger switch 4.

Controlling organization 330 so arranges, and makes control piece 301 in the time of latched position, output shaft 316 and working shaft 22a,One of 24a has not only realized and having connected, and locking piece 303 locks the position of work package 20 relative housings 310, fromAnd make working head in the time carrying out concrete boring or the work of stubborn screw, avoid the relative housing 310 of work package 20 to produce and rock,Work more stable, more accurate.

For can quick change realize mounting working chuck 22,24 positions conversions, and have one accurately while being transformed in positionJudgement, hand-hold power tool 300 is also provided with the prompting mechanism that puts in place. The present embodiment put in place prompting mechanism be arranged at workBetween assembly 20 and housing 310. The prompting mechanism that puts in place has engagement and released state, when engagement, and at least two worksDo chuck one of them in operating position, when released state, at least two mounting working chucks are all in off-position. Put in place and carryShow that mechanism comprises the alignment pin 309 that is arranged at housing, with the elastic component 311 of alignment pin 309 butts, and be arranged at work packageThe locating slot 26a of 20 mounting disc 26. Alignment pin 309 remains to mounting disc 26 bias voltages under the effect of elastic component 311Trend. In the time of work package 20 relative housing 310 pivotable, once changing, the position of mounting working chuck 22,24 puts in place, alignment pin 309Automatically slip into locating slot 26a from mounting disc 26, thereby alignment pin 309 connects with locating slot 26a, now worksThere has been a basic fixed position position of chuck 22,24 relative casings 310. The alignment pin 309 of present embodiment adopts metal materialMake, work package 20 adopts plastic material to make, therefore when alignment pin 309 slips into location under the active force of elastic component 311When groove 26a, can hear clear and melodious engaging sound, with the prompting of putting in place to conversion of operator, the hand that also has conversion to put in place simultaneouslySense, operator can feel the pivotal force of granting work package 20 can be subject to putting in place the reaction force of prompting mechanism. This enforcementAlignment pin 309 in mode is not subject to the restriction of the present embodiment with the position of locating slot 26a but can exchanges setting.

By the unlocking knob 301a of release control part 301, the position of work package 20 relative housings 310 is at controlling organizationUnder 330 effect, automatically lock. When mobile unlocking knob 301a is to unlocked position, work package 20 relative housings 310Locking position is removed, and output shaft 306 is thrown off with one of working shaft simultaneously, now, as long as operator imposes on work package20 overcome the active force of the prompting mechanism that puts in place, and alignment pin 309 is thrown off from locating slot 26a, and work package 20 is housing relatively310 pivotables are to realize operating position conversion. Certainly, the alignment pin 308 of the present embodiment and work package 20 are not limited to indication materialMaterial, can replace with other material. The quantity setting of locating slot 26a also can match with the quantity of mounting working chuck, makes like thisWhen being transformed into operating position, first job chuck can play positioning action. The position of locating slot 26a arrange can with filing appliance22,24 position is corresponding, also can set according to concrete structure.

In order to make control piece 301 drive locking piece 303 and stably synchronizing moving of connector 305 in moving process, withTime in order to effectively utilize enclosure interior space, on reduction box 32, be provided with guider near work package 20 one end,Guider is arranged at the front end of reduction box 32. Guider comprises the guide plate 313 extending vertically, and a pair of and guidingThe lead 315 that plate 313 extends in parallel; Between guide plate 313 and lead 315, be provided with gap, guide plate 313 and lead315 are positioned at the top of output shaft 316; The outside of lead 315 is respectively arranged with side arm 306 slippages of collecting company's fitting 305Groove 319 (Figure 25 only illustrates one). Control piece 301 is in the time of latched position, and locking piece 303 is positioned at before guide plate 313 lowerSide. Control piece 301 drives connector 305 at this groove 319 in operationally driving locking piece 303 mobile in this gapInterior slippage. The structure that is arranged so that like this controlling organization 330 is more reliable, stable.

Shown in Figure 28, in mounting disc 26, be provided with locked groove 26b, when control piece 301 is during in latched position, locking piece303 coordinate locking with locked groove 26b. In the present embodiment, the end of the pair of parallel side plate 304 of double end jam plate is engaged in respectively locked grooveIn 26b, thereby work package 20 is locked in to housing 310; For reducing mechanism volume effectively utilizes space, locked groove 26b withThe acting surface of locking piece 303 is arranged at the top of control piece 301, the below of output shaft axis X 1.

With reference to shown in Figure 30 to Figure 33, when overcoming elastic component 302 along the direction that is parallel to output shaft 316 shown in arrow M 'Promote control piece 301 with Flexible Reset 308 active forces, control piece 301 slips are to unlocked position, and now locking piece 303 movesTo guide plate 313. Mobile locking piece 303 and the connector 305 of driving of control piece 301 moves along respective direction, fromConnect and cause clutch cover 307 and one of working shaft 22a, 24a to throw off, locking piece 303 is thrown off and is connected with work package 20 simultaneously,Particularly, the pair of parallel side plate 304 of double end jam plate is thrown off and is engaged with locked groove 26b. Now operator is by relative casing 310 pivotsTurn work package 20, mounting working chuck 22,24 positions are changed. Once mounting working chuck 22,24 positions convert, and put in place and carryShow the feel that mechanism can send clear and melodious engaging sound or have conversion to put in place. Release control part 310, control piece 310 can be in elasticityUnder the effect of part 302, can automatically return to latched position.

Claims (20)

1. a hand-hold power tool, comprising:

Housing;

Motor, is arranged in described housing;

Output shaft, drives rotation by motor;

Work package, comprises at least two mounting working chucks, and described at least two mounting working chucks comprise respectively working shaft; Its feature existsIn: described hand-hold power tool also comprises controlling organization, and described controlling organization comprises control piece, locking piece and clutch dressPut, described locking piece selectively connects with work package or throws off, described arrangement of clutch selectively with described working shaft itOne connects or throws off; Described locking piece connects with work package so that the relative housing locking of work package; Described locking piece and workMake assembly disengagement and arrangement of clutch and described working shaft and throw off, allow the relative housing motion of work package.

2. hand-hold power tool according to claim 1, is characterized in that: the axis of described output shaft and motor drive shaftDead in line.

3. hand-hold power tool according to claim 1, is characterized in that: described locking piece prolongs along output shaft directionStretch.

4. hand-hold power tool according to claim 1, is characterized in that: described housing comprises the master who accommodates reduction boxBody, and accommodate the leading section of output shaft.

5. hand-hold power tool according to claim 4, is characterized in that: described locking piece comprise can with working groupThe first end that part connects, and second end that can connect with reduction box.

6. hand-hold power tool according to claim 5, is characterized in that: described first end has the end face taking the shape of the letter U.

7. hand-hold power tool according to claim 6, is characterized in that: described work package be provided with can with UThe groove that shape end face connects.

8. hand-hold power tool according to claim 1, is characterized in that: on described locking piece is axial along output shaftProjection and output shaft are overlapping at least partly.

9. hand-hold power tool according to claim 1, is characterized in that: described locking piece comprises a pair of along output shaftExtend axially and interconnective side plate.

10. hand-hold power tool according to claim 1, is characterized in that: described controlling organization further comprises and connectingFitting, by described connector, described control piece drives locking piece and arrangement of clutch interlock.

11. hand-hold power tools according to claim 10, is characterized in that: described locking piece moves to and working groupPart is thrown off, and described connector drives arrangement of clutch to move to and described working shaft disengagement; Described locking piece moves to and working groupPart connects, and described connector drives arrangement of clutch to move to one of described working shaft and connects.

12. hand-hold power tools according to claim 10, is characterized in that: described connector is positioned at described locking pieceInner side.

13. hand-hold power tools according to claim 12, is characterized in that: described locking piece comprises a pair of interconnection mutuallyThe side plate connecing, described connector comprises a pair of side arm being parallel to each other with side plate.

14. hand-hold power tools according to claim 4, is characterized in that: described power tool also comprises guiding lockDetermine the guider that part moves, described guider is arranged near on the reduction box of described leading section.

15. hand-hold power tools according to claim 14, is characterized in that: described guider comprises along output shaftAxially extended guide plate and a pair of lead.

16. hand-hold power tools according to claim 1, is characterized in that: described arrangement of clutch comprises cover slidablyBe located at the clutch cover of output shaft, thereby described clutch cover moves axially and connects with one of described working shaft or throw off.

17. hand-hold power tools according to claim 16, is characterized in that: described arrangement of clutch further comprises multiplePosition spring, described back-moving spring is for providing clutch cover to the mobile elastic force of one of working shaft.

18. hand-hold power tools according to claim 1, is characterized in that: described control piece moves and establishes relative to housingPut, control piece axially moves and realizes the part that unlocks to the locking position of work package and control away from work package along output shaftOutput shaft and the disengagement of described working shaft connect.

19. hand-hold power tools according to claim 18, is characterized in that: the moving direction of described locking piece and controlThe moving direction of product is consistent.

20. hand-hold power tools according to claim 18, is characterized in that: described controlling organization also comprises and controlThe elastic component of part butt, the elastic force that described elastic component provides control piece to drive locking piece to move to work package.