CN103624749A - Power tool and operating method for replacing work heads of power tool - Google Patents
Power tool and operating method for replacing work heads of power tool Download PDFInfo
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- CN103624749A CN103624749A CN201210309878.4A CN201210309878A CN103624749A CN 103624749 A CN103624749 A CN 103624749A CN 201210309878 A CN201210309878 A CN 201210309878A CN 103624749 A CN103624749 A CN 103624749A
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- end cap
- fore shell
- storage folder
- output shaft
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Abstract
A power tool comprises a machine case, a motor, an output shaft, a transmission mechanism, a storage clamp and a connecting shaft, wherein the output shaft is provided with axially formed containing holes for containing work heads, the transmission mechanism is arranged between the motor and the output shaft and can transmit rotating power output by the motor to the output shaft, the storage clamp is arranged at one end, close to the motor, of the output shaft and comprises a containing chamber used for containing the work heads which are arranged in parallel, and the storage clamp has a central line which extends axially and provided with a front end portion which is arranged close to the output shaft; the connecting shaft can axially move between the work position where the connecting shaft penetrates through the containing chamber and is connected with one of the multiple work heads in a matched mode and the release position where the connecting shaft penetrates through the containing chamber and is separated from one of the multiple work heads; the machine case comprises a front shell for supporting the storage clamp and an end cover which is connected with the front shell and used for covering the front end portion of the storage clamp, the end cover can move between the first position and the second position, the storage clamp is contained in a cavity formed by the front end cover and front shell when the end cover is located in the first position, and the front end portion of the storage clamp is exposed out of the front shell when the end cover is located in the second position.
Description
Technical field
The present invention relates to the method for operating of a kind of power tool and this power tool working head of replacing, especially relate to a kind of electric drill, electric screw driver class power tool of realizing quick-replaceable working head, and for changing the method for operating of such power tool working head.
Background technology
Electric drill is the power tool for holing on workpiece, electric screw driver be for by screw-driving to the power tool on workpiece.When needing to bore the hole of different-diameter or tighten the screw of different size in use procedure, need to change drill bit or the screwdriver bit of different size, working head, take off the working head of original installation, then loads onto the working head of another kind of specification.At needs, frequently change under the use occasion of working head, to operator, brought great inconvenience, caused replacing working head loaded down with trivial details on the one hand, the working head taking off is on the other hand placed easy loss everywhere.So, people expect a plurality of working heads to be stored in storage folder, then storage folder is built in power tool, by operating mechanism, release working head and carry out work, when changing working head, needs by operating mechanism, working head is withdrawn in storage folder again, then the working head of the position of adjustment storage folder to select to need.
In storage folder, the working head quantity of storage is limited, that is to say and can not disposable the working head of all specifications be all stored in same storage folder, therefore in the time need to using the working head of other specification, that need to more renew and store the storage folder of required specification working head, or the working head in former storage folder is replaced to the working head with required specification.Such operation is still more loaded down with trivial details, is necessary to improve.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of simple to operate, power tool that operating efficiency is high.
In order to address the above problem, the invention provides a kind of power tool, comprising: casing; Motor, is arranged in casing, and outputting rotary power; Output shaft, has the accepting hole that holds working head of axial setting; Transmission mechanism, is arranged between motor and output shaft and the rotary power of motor output can be passed to output shaft; Storage is pressed from both sides, and is arranged at one end of the close motor of output shaft, and described storage folder comprises for accommodating the storehouse of accommodating of several working heads that are set up in parallel, the leading section that described storage fixture has axially extended storage folder center line and arranges near output shaft; Connecting axle, can axially-movable between the off-position through accommodating operating position that one of storehouse and several working heads connect and separating with one of described several working heads; Described casing comprises the fore shell that supports storage folder, and be connected with fore shell for covering the end cap of storage folder leading section, described end cap can move between primary importance and the second place, while being positioned at primary importance, described storage folder is contained in the cavity being formed by end cap and fore shell, while being positioned at the second place, the leading section of described storage folder comes out from fore shell.
Preferably, when described end cap is positioned at the second place, described storage folder can be separated with fore shell along storage folder centerline direction.Another kind is selectively in scheme, and described working head can be separated with storage folder along storage folder centerline direction.
Preferably, described end cap is pivotally installed in fore shell.
Preferably, the pivot axis of described end cap and the center line of output shaft parallel.Another kind is selectively in scheme, the pivot axis of described end cap and the angled setting of the center line of output shaft.
Preferably, the relative end cap of described output shaft is fixedly installed.
Preferably, described storage is pressed from both sides relative to fore shell and can be rotated around storage folder center line.Described fore shell is provided with window, and by described window, storage folder is operationally driven in rotation the position of aliging with output shaft accepting hole to one of several working heads.
Preferably, on described casing, be provided with operating mechanism, described operating mechanism can move relative to casing between initial position and operating position.Described operating mechanism comprises slip lid, and described slip lid relatively casing slides vertically.
Preferably, between described end cap and fore shell, retaining mechanism is set, when operating mechanism is positioned at initial position, retaining mechanism acts on end cap and limits end cap and move, and when operating mechanism is positioned at operating position, retaining mechanism discharges the restriction to end cap.
Preferably, described retaining mechanism comprise be arranged at slip lid block, be arranged at the stopper of end cap, when operating mechanism is positioned at initial position, block and stopper connect and stop end cap to move, when operating mechanism is positioned at operating position, described block permission end cap separated with stopper moves.
Another kind is selectively in scheme, described retaining mechanism comprises and is arranged at the spring of the groove of end cap, the lock pin that is arranged at fore shell, bias voltage lock pin and the fore-set moving with slip lid, the end of described lock pin is engaged in groove, when fore-set and lock pin against time, the position of the relative fore shell of described end cap is locked, when fore-set and lock pin disengagement, described end cap overcomes the engagement of acting force of the spring disengagement and lock pin, allows end cap to move relative to fore shell.
Preferably, between described end cap and fore shell, be provided with maintaining body, described maintaining body can make end cap remain on to be connected with fore shell and cover the primary importance of storage folder leading section or end cap is remained on the second place that the leading section of storage folder is come out from fore shell.Described maintaining body comprises the pin that is connected to end cap, and is arranged at the elastic component between pin and fore shell.
The invention provides a kind of power tool, comprising: casing; Motor, is arranged in casing, and outputting rotary power; Output shaft, has the accepting hole that holds working head of axial setting; Transmission mechanism, is arranged between motor and output shaft and the rotary power of motor output can be passed to output shaft; Storage is pressed from both sides, and is arranged at one end of the close motor of output shaft, and described storage folder comprises for accommodating the storehouse of accommodating of several working heads that are set up in parallel, the leading section that described storage fixture has axially extended storage folder center line and arranges near output shaft; Connecting axle, can axially-movable between the off-position through accommodating operating position that one of storehouse and several working heads connect and separating with one of described several working heads; Described casing comprises the fore shell that supports storage folder, and be connected with fore shell for covering the end cap of storage folder leading section, described end cap can move between primary importance and the second place, while being positioned at primary importance, described storage folder is contained in the cavity being formed by end cap and fore shell, while being positioned at the second place, at least one is accommodated storehouse and comes out from fore shell.
The method of operating that the invention provides a kind of power tool, comprises the following steps: move axially connecting axle to the off-position separating with one of several working heads; From primary importance, move end cap to the second place; By working head and storage folder separated or will store press from both sides separated with fore shell.
Preferably, the mode that described end cap moves to the second place from primary importance is pivotable.
Preferably, described connecting axle has center line, along connecting axle centerline direction by working head and storage folder separated or will store press from both sides separated with fore shell.
Technical scheme of the present invention provides a kind of difference of changing working head to experience to user; Owing to having adopted the movable end cap arranging of relative fore shell, when making to be supported in storage in fore shell and being clipped in end cap and moving to the second place by primary importance, can easily and fast working head be taken out from storage folder, make to change the easy and simple to handle, quick of working head.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is done to further detailed description.
Fig. 1 is the schematic diagram of the main apparent direction of power tool of first embodiment of the invention.
Fig. 2 is the cutaway view of the main apparent direction of Fig. 1 medium power instrument.
The cutaway view of the main apparent direction of Fig. 3 Fig. 1 medium power instrument, now slip lid drives working head to shift out axle by connecting axle to go out defeated.
Fig. 4 is that Fig. 1 medium power instrument moves the slip lid schematic diagram of main apparent direction afterwards.
Fig. 5 is that Fig. 4 is along the cross-sectional schematic of E-E line.
Fig. 6 is that in Fig. 4, mark I1 removes working head and partial shell part amplification cut-away view afterwards.
Fig. 7 is when in Fig. 1, slip lid is closed and the local enlarged diagram of couplings of end cap.
Fig. 8 is the schematic diagram of end cap in pivot position in Fig. 4, and now storage folder can take out from fore shell.
Fig. 9 is the schematic diagram of the main apparent direction of power tool of second embodiment of the invention.
Figure 10 is along the cross-sectional schematic of F-F line in Fig. 9.
Figure 11 is the schematic diagram of the main apparent direction of Fig. 9 medium power instrument, and now slip lid is in an open position, and end cap is in pivot position.
Figure 12 is the left apparent direction schematic diagram according to Figure 11 power tool.
Figure 13 is the partial schematic sectional view of Fig. 1 medium power instrument.
Figure 14 is the amplification cross-sectional schematic of mark I2 in Figure 13, and now end cap is in latched position.
Figure 15 is the amplification cross-sectional schematic of mark I2 in Figure 13, and now end cap is in the unlocked position.
Figure 16 is the amplification cross-sectional schematic of mark I2 in Figure 13, and now end cap is in pivot position.
Wherein,
1,1 '. casing 2. motor 3. transmission mechanisms
4. output shaft 6. battery 7. press buttones
9. working head 10, and 10 '. horizontal part 11. handle portion
13. fore shell 13a. end cap 13b. end caps
14. stopper 16. block 17. maintaining bodies
18. pin 19. elastic component 20. pivot axis
21. motor shaft 22. gear- boxes 28,28 '. window
30. pinion gear mechanism 31. planetary gear reducing mechanism 40. sleeves
41. accepting hole 42. pin 50. fixed blocks
51. connecting axle 52. storage folders 53,53 '. slip lid
54. groove 60b. sleeve 55a. pivot axis
56.U shape groove 60. lock pin 60a. ends
62. spring 64. fore-set 130. openings
221. dividing plate 223. toothed wheel box cover plate 301. first gears
302. second gear 303. the 3rd gear 521. working heads are accommodated storehouse
The specific embodiment
In the preferred embodiment of power tool of the present invention, power tool is powered screwdriver, according to the difference of power source can be divided into pneumatic screw driver, screwdriver and electric screw driver surge, in electric screw driver, also have direct current and exchange minute, the present invention preferably be take DC electric screwdriver and is specifically described as example.
Shown in Fig. 3, this DC electric screwdriver comprises casing 1, motor 2, battery 6, transmission mechanism 3, connecting axle 51, working head supporting mechanism and output shaft 4.Casing 1 is substantially closed up and is assembled by screw (not shown) by symmetrical two and half housings, casing 1 comprises horizontal part 10 and the handle portion 11 arranging in obtuse angle with horizontal part 10, optimized angle K between handle portion 11 of the present invention and horizontal part 10 is at 100 degree between 130 degree, and when gripping handle portion 11 operates like this, meeting is pleasant.Casing 1 is provided with fore shell 13 at horizontal part 10 near the position of output shaft 4, and the end cap 13a that is connected in actively fore shell 13.Housing 1 is provided with the press button 7 of handled easily in handle portion 11, battery 6 is built in the rear end of handle portion 11, and motor 2 and transmission mechanism 3 are housed in the horizontal part 10 of casing 1.As preferred embodiment, this battery 6 can be lithium ion battery.It should be noted that, said lithium ion battery is that negative material is the general name of the rechargeable battery of elemental lithium here, and according to the difference of positive electrode, it can form many systems, as " lithium manganese " battery, and " lithium iron " battery etc.In the present embodiment, lithium ion battery is that a joint rated voltage is 3.6V(volt) lithium ion battery.Certainly, battery 6 can be also the battery types well known to those skilled in the art such as NI-G, ni-mh.
Transmission mechanism 3 comprises by the right side of drawing (take as rear) before backward the planetary gear reducing mechanism 31 and the pinion gear mechanism 30 that by motor 2, are driven, wherein pinion gear mechanism 30 is connected with connecting axle 51, and by connecting axle 51, rotatablely moving of motor 2 is passed to output shaft 4.Output shaft 4 has the accepting hole 41 that reception working head 9 carries out work.Wherein working head supporting mechanism is for storing different working heads, and the working head here mainly refers to Philip's head screw screwdriver bit that electric screw driver is conventional, slot type screwdriver head, drill bit etc.; Working head supporting mechanism has axially extended center line X1, and working head supporting mechanism has forward and backward end along center line X1, between forward and backward end, is provided with peripheral surface, and wherein close output shaft 4 is leading section, away from output shaft 4 these rearward end.By operation connecting axle 51, move axially through working head supporting mechanism or leave working head supporting mechanism, just can be when electric screw driver be tightened or unclamp different screws the different working head of quick-replaceable.According to the composition of above electric screw driver, electric screw driver can be successively divided into by the right side of drawing (take as rear) before backward the motor part D that motor is set, the driving section C of transmission mechanism 3 is set, the efferent A that the storage part B of working head supporting mechanism is set and output shaft is set.
Motor 2 in the preferred embodiment for the present invention is motor, and motor has from electric machine casing extended motor shaft 21 forward.Motor is fixed in casing 1, gear-box 22 is fixed in casing 1 and is positioned at the front portion of motor, gear-box 22 is for accommodating planetary gear reducing mechanism 31 and pinion gear mechanism 30, by dividing plate 221 being set between planetary gear reducing mechanism 31 and pinion gear mechanism 30, the two is separated, and toothed wheel box cover plate 223 is set between gear-box 22 and working head supporting mechanism, transmission mechanism 3 and working head supporting mechanism can be separated like this, transmission mechanism 3 and working head supporting mechanism are separate.Pinion gear mechanism 30 comprises the first gear 301 can transmitting torque being connected with planetary gear reducing mechanism 31, the 3rd gear 303 being connected with connecting axle 51 and the second gear 302 meshing with the first gear 301 and the 3rd gear 303, the second gear 302 passes to the 3rd gear 303 by the rotation of the first gear 301, and the two ends of each gear are supported by axle sleeve.The middle part of dividing plate 221 is provided with the hole that the axle for the first gear 301 passes, the end face of dividing plate 221 is provided with for the groove of axle sleeve is installed, the rear axle housing that supports pinion gear mechanism 30 is fixed on dividing plate 221, front shaft sleeve is fixed on toothed wheel box cover plate 223, toothed wheel box cover plate 223 can be fixedly linked by screw, buckle etc. with gear-box 22, so, pinion gear mechanism 30 and planetary gear reducing mechanism 31 can be separated, both can be sealed again simultaneously, prevent that dust, powder etc. from entering transmission mechanism 3 inside, also can prevent the leakage of lubricating oil.In addition, three gears are set just in order to make the inner space of instrument compacter, thereby do not affect the attractive in appearance of outside.Certainly, also can be arranged to as required two gears, one is connected with planetary gear reducing mechanism 31, and another is connected with connecting axle 51.In addition, transmission mechanism 3 is not limited to above-described form, and transmission mechanism 3 can only include planetary gear reducing mechanism 31, or only includes pinion gear mechanism 30, or other the transmission mechanism that rotatablely moves, as ratchet mechanism, turbine mechanism etc.Wherein planetary gear reducing mechanism 31 has three grades of deceleration systems, motor shaft 21 extends and planetary gear reducing mechanism 31 engagements, planetary gear reducing mechanism 31 will rotatablely move and pass to pinion gear mechanism 30, and pinion gear mechanism 30 drives connecting axle 51 rotations, connecting axle 51 driver output axle 4 rotations again.When motor moves like this, by planetary gear reducing mechanism 31, pinion gear mechanism 30, finally by output shaft 4, exported.This shows, the driving-chain in present embodiment is motor-transmission mechanism-connecting axle-output shaft, and connecting axle is as a part for driving-chain.In addition, reducing gear is slowed down by third-level planetary and two-stage parallel axis deceleration system forms to obtain wanted output speed, in other embodiments, and depending on the rotating speed of required output, reducing gear can only include secondary planet deceleration system, or other deceleration systems.
On the horizontal part 10 of casing 1, be slidably connected with slip lid 53, slip lid 53 can drive connecting axle 51 to move axially between initial position and the second place.Connecting axle 51 is six square shafts, on connecting axle 51 axial restraint be provided with a fixed block 50, rotating being against on fixed block 50 in rear end of connecting axle 51, slip lid 53 can drive connecting axle 51 to move by the mode being connected with fixed block 50.Certainly, slip lid 53 drives the mode that connecting axle 51 moves to also have a lot, as the annular groove around week Monday outside it can be set on connecting axle 51, slip lid 53 is extend in annular groove and is connected with connecting axle 51 by a pin or steel wire ring, so neither affect the rotation of connecting axle 51, also do not affect the movement that slip lid 53 drives connecting axle 51.The front end of connecting axle 51 is provided with magnet 511, be used for adsorbing working head 9, when selecting good berth head 9, can operate slip lid 53 drives connecting axle 51 through working head supporting mechanism, working head 9 is connected magnet 511 absorption on axle 51, and under the promotion of connecting axle 51, leave working head supporting mechanism, enter the accepting hole 41 of output shaft 4.
With further reference to Fig. 4, to shown in Fig. 8, fore shell 13 and end cap 13a are formed for the cavity of support works head support mechanism, and wherein end cap 13a arranges pivotally around the relative fore shell 13 of pivot axis 20.The relative fore shell 13 of end cap 13a at least can be changed between two positions, when end cap 13a is positioned at primary importance, a working head supporting mechanism part is contained in the cavity being formed by fore shell 13 and end cap 13a, and end cap 13a has covered the leading section of support works head support mechanism, another part is covered and exposes along with moving of slip lid 53 by slip lid 53, and working head supporting mechanism can rotate around its center line X1 in receiving space.When end cap 13a is switched to the second place, the leading section of working head supporting mechanism is exposed to outside.The preferred working head supporting mechanism of the present invention is storage cylindraceous folder 52, and storage folder 52 arranges not only convenient rotation like this, take up room little simultaneously, certainly storage folder 52 also can be arranged to square, leg-of-mutton, strip, support shape etc.In electric screw driver work, slip lid 53 and end cap 13a butt, slip lid 53, in initial position, is now all closed storage folder 52 with connecting axle 51, thereby prevents that dust from entering.When slip lid 53 moves to the position of rearmost end, slip lid 53, can be out not exposed connecting axle 51 when being the second place yet, the inside that can prevent like this entering tools such as dust, powder.
On storage folder 52, along its circumferencial direction, be evenly distributed with a plurality of working heads and accommodate storehouse 521, that is to say that working head has a plurality of receiving spaces, and a plurality of receiving space is set up in parallel along the rotation of storing folder 52.Working head is accommodated storehouse 521 along the axial a part of excircle sealing of storage folder 52, part excircle opens wide, when handled easily person selects working head 9 like this, can be easy to see from unlimited part the shape of working head 9 heads, thus the working head 9 that selection needs fast.Certainly, those skilled in the art are easy to expect, it can be also totally enclosed that working head is accommodated storehouse 521 excircles, only need identify in corresponding position, or directly storage folder 52 are made transparently, can conveniently identify.Operator operationally stores folder 52 by rotation, and to make to accommodate the position of one of them working head 9 and the accepting hole 41 of output shaft 4 in storehouse 521 corresponding.In changing the process of working head, mobile slip lid 53 to the second place drives connecting axle 51 to exit storage folder 52, working head 9 is connected magnet 511 absorption on axle 51, and the accepting hole 41 that leaves output shaft 4 under the drive of connecting axle 51 enters in the host cavity 521 of storage folder 52, now handled easily person is stored and is pressed from both sides 52 and select required working head by rotations.
Slip lid 53 has certain length, when slip lid 53 moves to the operating position with end cap 13a butt, and slip lid 53 and storage part B and driving section C axial overlap; When slip lid 53 moves to the position of replaceable working head, slip lid 53 and motor part D axial overlap, and with driving section C part axial overlap.Certainly, the mode that slip lid 53 moves is a lot of in addition, such as slip lid 53 is rotatable, is installed on casing 1, is covering storage folder 52 and is exposing between two positions of storing folder 52 and rotate; Or be similar to the mode of sliding door, can open or closure; Or the mode that is connected in casing 1 of pivotable etc., in the time of can realizing work, will store folder 52 sealings, in the time of need to changing working head, storage folder 52 is exposed.
Output shaft 4 has output shaft center line X2, and output shaft 4 is supported in end cap 13a by sleeve 40, and sleeve 40 provides radial support to output shaft 4, can certainly realize by bearing the radial support of output shaft 4.Connecting axle 51 of the present invention is hexagon, in the 3rd gear 303, be provided with hexagonal hole, for connecting with connecting axle 51 and rotary power being passed to connecting axle 51, connecting axle 51 inserts output shaft 4 and can drive output shaft 4 rotations like this, and then drive working head 9 rotations by output shaft 4, can use like this working head 9 of standard, and without offer the hole of accommodating working head 9 on connecting axle 51, avoid the weight and volume of the excessive increase complete machine of connecting axle 51 diameter.Like this, what directly drive working head 9 rotations is output shaft, shortened the distance of torque transfer, thereby the use of instrument is more reliable.Above-described is that connecting axle 51 drives the mode of working head rotation indirectly by output shaft 4, but, those skilled in the art are easy to expect that other transmission means substitutes, such as connecting axle directly drives working head rotation, be that connecting axle is directly connected in mode that can transmitting torque with working head, or output shaft is driven by direct geared, and connecting axle is only for releasing working head and driving working head to get back to storage folder.
Pivot axis 20 and the angled setting of output shaft center line X1, with reference to Fig. 5, in present embodiment, end cap 13a is pinned at the both sides of fore shell 13 by two pins 42, and the line of centres of pin 42 and pivot axis 20 conllinear, pivot axis 20 is substantially vertical with output shaft center line X1.What certainly, those skilled in the art it is contemplated that out end cap 13a activity is connected in fore shell 13 alternate manners.
With further reference to Fig. 4, Fig. 6, when slip lid 53 slides onto the second place, the storage folder 52 originally being covered by slip lid 53 reveals, fore shell 13 is provided with window 28, operator can stir storage folder 52 by window 28 and make it to rotate in receiving space, until the required position corresponding with the accepting hole 41 of output shaft 4, working head 9 positions, here the position that the correspondence position of indication roughly aligns with accepting hole 41 for storage folder 52 working heads 9, those skilled in the art easily expect, as long as arrange and facilitate working head 9 to accommodate by the working head of storage folder 52 guiding mechanism that storehouse 521 imports output shaft 4 accepting holes 41 by the accepting hole 41 at output shaft 4 or between accepting hole 41 and storage folder 52, by slip lid 53, drive connecting axle 51 working head 9 to be sent in the accepting hole 41 of output shaft 4 easily.Between end cap 13a and fore shell 13, maintaining body 17 is set, this maintaining body 17 can make end cap 13a be held in first or the second place.Maintaining body 17 comprises the pin 18 that is connected to end cap 13a, and is arranged at the elastic component 19 between pin 18 and fore shell 13.Under normal condition, elastic component 19 bias voltage pins 18 make end cap 13a be held in primary importance; When end cap 13a is subject to external force and overcomes elastic component 19 and be switched to the second place, elastic component 19 bias voltage pins 18 make end cap 13a be held in the second place.
Slip lid 53 is equivalent to be arranged at the operating mechanism on casing 1, and this operating mechanism can move relative to casing between initial position and operating position.Certainly operating mechanism also can adopt the alternate manner that those skilled in the art easily expect to replace, such as the action bars of manual control etc.Between end cap 13a and casing 1, retaining mechanism is set, when operating mechanism is positioned at initial position, retaining mechanism acts on end cap 13a and limits end cap 13a and move, and when operating mechanism is positioned at operating position, retaining mechanism discharges the restriction to end cap 13a.
With reference to Fig. 6, Fig. 7, retaining mechanism comprises the block 16 that is arranged at slip lid 53, and is arranged at the stopper 14 that end cap 13a and block 16 connect.When block 16 and stopper 14 connect, slip lid 53 has sealed window 28 and has stoped end cap 13a around the rotation of pivot axis 20, and now end cap 13a is in primary importance; When block 16 is separated with stopper 14, window 28 is unlocked and allows end cap 13a to turn to the second place around pivot axis 20.When end cap 13a is during in primary importance, storage folder center line X1 and connecting axle 51 almost parallels, now move axially slip lid 53 and expose storage folder 52, can store folder 52 by window 28 and adjust to the position that one of several working heads are corresponding with output shaft accepting hole 41.
With reference to Fig. 8, the relative end cap 13a of output shaft 4 is fixedly installed, and when the relative fore shell 13 of end cap 13a is switched to the second place, output shaft center line X2 and connecting axle 51 are angle setting.In the present embodiment, when end cap 13a is switched to the second place, output shaft 4 is switched to vertical direction with end cap 13a by horizontal direction, and now output shaft center line X2 and connecting axle 51 are roughly the right angle of 90 degree.The leading section formation opening 130 of fore shell 13, the front end face of storage folder 52 appears from opening 130, that is to say, and at least one of storage folder 52 accommodated storehouse 521 and is exposed to outside casing 1, and now operator changes from accommodating storehouse 521 taking-up working heads.Also storage folder 52 can be taken out from opening 130 along storage folder center line X1, thereby make storage folder 52 separated with fore shell 13.
With reference to Fig. 9, Figure 10, the electric screw driver of the second embodiment of the present invention and the first embodiment have analog structure, and therefore identical parts represent not do to repeat with same label.Fore shell 13 is positioned at the leading section of casing 1 ', the slip lid 53 relatively horizontal part 10 ' of casing 1 ' endwisely slips between primary importance and the second place along groove 54, during primary importance, slip lid 53 ' drives connecting axle 51 through the host cavity 521 of storage folder 52, and the working head that is contained in the host cavity 521 of storage folder 52 is advanced in the accepting hole 41 of output shaft 4.During the second place, slip lid 53 ' drives connecting axle 51 to move, make to be adsorbed on the accepting hole 41 that on magnet 511, working head 9 exits output shaft 4 with connecting axle 51 and enter the accepting hole 521 of storing folder 52, on fore shell 13, be provided with the window 28 ' that can have an X-rayed, now can see the some work head in storage folder 52 by the window 28 ' of fore shell 13, comprise current or next working head, also can rotate storage folder 52 by window 28 ' and make it rotation.The fore shell 13 of the present embodiment is the corresponding window 28 ' that is provided with respectively along the both sides of storage folder center line X1.
With reference to Figure 11, Figure 12, when slip lid 53 ' slides into the second place along groove 54, connecting axle 51 moves axially to the off-position separating with one of several working heads simultaneously, now operator can be easily manually stir storage folder 52 by window 28 ' and rotates, thereby makes to be contained in one of several working heads position corresponding with output shaft accepting hole 41 of storage folder 52 accepting holes 521.End cap 13b in the present embodiment is around pivot axis 55a fore shell 15 pivotables relatively, pivot axis 55a and storage folder center line X1 almost parallel.When end cap 13b is during in initial position, storage folder 52 is contained in the receiving space being formed by fore shell 13 and end cap 13b, and end cap 13b has covered storage and presss from both sides 52 leading section.When end cap 13b is switched to the second place, the leading section accepting hole 521 of storage folder 52 comes out from the front opening 130 of fore shell 13 at least partly, and now operator can directly be separated along storage folder center line X1 direction the working head 9 that is contained in storage folder 52 accepting holes 521 with storage folder 52.When the end cap 13b in the present embodiment is switched to the second place by primary importance, the large angle to rotated 180 degree relative to fore shell 13, now the leading section of storage folder 52 comes out from the front opening 130 of fore shell 13 completely, and now operator can directly take out storage folder 52 from the leading section opening 130 of fore shell 13.Certainly the pivoting angle of end cap 13b can arrange as required.After storage folder 52 is separated with fore shell 13, can from storage folder 52, take out working head easily.The slip lid 53 ' of the present embodiment can move vertically relative to casing 1 ' between initial position and operating position, and slip lid 53 ' belongs to the axially movable operating mechanism of control connection axle 51.Between end cap 13b and fore shell 13, retaining mechanism is set, this retaining mechanism locks with the change in location of slip lid 53 ' or discharges the locking to end cap 13b.When operating mechanism is positioned at initial position, retaining mechanism acts on end cap 13b and limits end cap 13b and move, and when operating mechanism is positioned at operating position, retaining mechanism discharges the restriction to end cap 13b.
With reference to Figure 13 to Figure 16, retaining mechanism comprises the groove being arranged on end cap 13b, this groove preferentially adopts V-shaped groove 56, be arranged at the lock pin 60 of fore shell 13, one of them end 60a cocoa of lock pin 60 choose select with V-shaped groove 56 engagement, the other end is arranged to hollow sleeve 60b, in sleeve 60b, be provided with spring 62, lock pin 60, under the partial pressure of spring 62, makes lock pin 60 end 60a be engaged in V-shaped groove 56.On slip lid 53 ', be provided with in addition with the mobile fore-set 64 of slip lid 53 ', fore-set 64 one end can penetrate in sleeve 60b and butt sleeve 60b inwall.When fore-set 64 moves to sleeve 60b inwall abutment action with slip lid 53 ', fore-set 64 compresses lock pin 60 and the position of engagement of V-shaped groove 56, and now the position of the relative fore shell 13 of end cap 13b is locked; When fore-set 64 is when throwing off with sleeve 60b inwall abutment action with slip lid 53 ' is mobile, as long as operator imposes under the effect that end cap 13b overcomes spring 62, end cap 13b just can throw off the engagement with lock pin 60, thereby allows relative fore shell 13 pivotables of end cap 13b, and now spring 62 is in compressive state.The maintaining body (not shown) of similar the first embodiment is set between end cap 13b and fore shell 13 equally, make end cap 13b no matter in primary importance, still at pivot position, all under the effect at elastic component, can keep its position, only have when end cap 13b is subject to being enough to overcome the flexible External Force Acting of elastic component, end cap 13b can be switched to the second place from primary importance, or is switched to primary importance from the second place; The object that maintaining body is set is to make can stablize being connected between end cap 13b and fore shell 13, reliably.
The above-mentioned definition to each element is not limited in various concrete structures or the shape of mentioning in embodiment, and those of ordinary skill in the art can know simply and replace it.As motor can carry out instead of electr ic motor with gasoline engine or diesel engine etc.; Working head cross section is regular arbitrarily polygon; In addition, in above-mentioned embodiment, moving to axial between connecting axle and working head storage folder can be also that connecting axle is fixed, and working head storage folder can either also can rotate in axially-movable, and connecting axle can be also coaxially to arrange etc. with motor shaft.In addition, elasticity pressing device is mainly used in the relative position of correcting working head and torque transfer part, and to its structure and have no special requirements, visual different interior carrys out corresponding change configuration, can increase new element, also can reduce unnecessary element.
Claims (20)
1. a power tool, comprising: casing;
Motor, is arranged in casing, and outputting rotary power;
Output shaft, has the accepting hole that holds working head of axial setting;
Transmission mechanism, is arranged between motor and output shaft and the rotary power of motor output can be passed to output shaft;
Storage is pressed from both sides, and is arranged at one end of the close motor of output shaft, and described storage folder comprises for accommodating the storehouse of accommodating of several working heads that are set up in parallel, the leading section that described storage fixture has axially extended storage folder center line and arranges near output shaft;
Connecting axle, can axially-movable between the off-position through accommodating operating position that one of storehouse and several working heads connect and separating with one of described several working heads;
It is characterized in that: described casing comprises the fore shell that supports storage folder, and be connected with fore shell for covering the end cap of storage folder leading section, described end cap can move between primary importance and the second place, while being positioned at primary importance, described storage folder is contained in the cavity being formed by end cap and fore shell, while being positioned at the second place, the leading section of described storage folder comes out from fore shell.
2. power tool as claimed in claim 1, is characterized in that: when described end cap is positioned at the second place, described storage folder can be separated with fore shell along storage folder centerline direction.
3. power tool as claimed in claim 1, is characterized in that: when described end cap is positioned at the second place, described working head can be separated with storage folder along storage folder centerline direction.
4. power tool as claimed in claim 1, is characterized in that: described end cap is pivotally installed in fore shell.
5. power tool as claimed in claim 4, is characterized in that: the pivot axis of described end cap parallels with the center line of output shaft.
6. power tool as claimed in claim 4, is characterized in that: the pivot axis of described end cap and the angled setting of the center line of output shaft.
7. power tool as claimed in claim 1, is characterized in that: the relative end cap of described output shaft is fixedly installed.
8. power tool as claimed in claim 1, is characterized in that: described storage is pressed from both sides relative to fore shell and can be rotated around storage folder center line.
9. power tool as claimed in claim 1, is characterized in that: described fore shell is provided with window, and by described window, storage folder is operationally driven in rotation the position of aliging with output shaft accepting hole to one of several working heads.
10. power tool as claimed in claim 1, is characterized in that: on described casing, be provided with operating mechanism, described operating mechanism can move relative to casing between initial position and operating position.
11. power tools as claimed in claim 10, is characterized in that: described operating mechanism comprises slip lid, and described slip lid relatively casing slides vertically.
12. power tools as claimed in claim 11, it is characterized in that: between described end cap and fore shell, retaining mechanism is set, when operating mechanism is positioned at initial position, retaining mechanism acts on end cap and limits end cap and move, when operating mechanism is positioned at operating position, retaining mechanism discharges the restriction to end cap.
13. power tools as claimed in claim 12, it is characterized in that: described retaining mechanism comprise be arranged at slip lid block, be arranged at the stopper of end cap, when operating mechanism is positioned at initial position, block and stopper connect and stop end cap to move, when operating mechanism is positioned at operating position, described block permission end cap separated with stopper moves.
14. power tools as claimed in claim 12, it is characterized in that: described retaining mechanism comprises and is arranged at the spring of the groove of end cap, the lock pin that is arranged at fore shell, bias voltage lock pin and the fore-set moving with slip lid, the end of described lock pin is engaged in groove, when fore-set and lock pin against time, the position of the relative fore shell of described end cap is locked, when fore-set and lock pin disengagement, described end cap overcomes the engagement of acting force of the spring disengagement and lock pin, allows end cap to move relative to fore shell.
15. power tools as claimed in claim 1, it is characterized in that: between described end cap and fore shell, be provided with maintaining body, described maintaining body can make end cap remain on to be connected with fore shell and cover the primary importance of storage folder leading section or end cap is remained on the second place that the leading section of storage folder is come out from fore shell.
16. power tools as claimed in claim 15, is characterized in that: described maintaining body comprises the pin that is connected to end cap, and are arranged at the elastic component between pin and fore shell.
17. 1 kinds of power tools, comprising:
Casing;
Motor, is arranged in casing, and outputting rotary power;
Output shaft, has the accepting hole that holds working head of axial setting;
Transmission mechanism, is arranged between motor and output shaft and the rotary power of motor output can be passed to output shaft;
Storage is pressed from both sides, and is arranged at one end of the close motor of output shaft, and described storage folder comprises for accommodating the storehouse of accommodating of several working heads that are set up in parallel, the leading section that described storage fixture has axially extended storage folder center line and arranges near output shaft;
Connecting axle, can axially-movable between the off-position through accommodating operating position that one of storehouse and several working heads connect and separating with one of described several working heads;
It is characterized in that: described casing comprises the fore shell that supports storage folder, and be connected with fore shell for covering the end cap of storage folder leading section, described end cap can move between primary importance and the second place, while being positioned at primary importance, described storage folder is contained in the cavity being formed by end cap and fore shell, while being positioned at the second place, at least one is accommodated storehouse and comes out from fore shell.
18. 1 kinds of power tools are changed the method for operating of working heads, and as claimed in claim 1, described method of operating comprises the following steps described power tool: move axially connecting axle to the off-position separating with one of several working heads; From primary importance, move end cap to the second place; By working head and storage folder separated or will store press from both sides separated with fore shell.
19. power tools as claimed in claim 18 are changed the method for operating of working head, it is characterized in that: the mode that described end cap moves to the second place from primary importance is pivotable.
20. power tools as claimed in claim 18 are changed the method for operating of working heads, it is characterized in that: described connecting axle has center line, along connecting axle centerline direction by working head and storage folder separated or will store press from both sides separated with fore shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309878.4A CN103624749B (en) | 2012-08-28 | 2012-08-28 | Power tool and the operational approach of replacing this power tool work head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210309878.4A CN103624749B (en) | 2012-08-28 | 2012-08-28 | Power tool and the operational approach of replacing this power tool work head |
Publications (2)
| Publication Number | Publication Date |
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| CN103624749A true CN103624749A (en) | 2014-03-12 |
| CN103624749B CN103624749B (en) | 2016-08-03 |
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| CN201210309878.4A Active CN103624749B (en) | 2012-08-28 | 2012-08-28 | Power tool and the operational approach of replacing this power tool work head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018082717A1 (en) * | 2016-11-01 | 2018-05-11 | 苏州宝时得电动工具有限公司 | Power tool and method for operation thereof |
| TWI677412B (en) * | 2017-03-29 | 2019-11-21 | 日商日東工器股份有限公司 | Power tools |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103624749B (en) | 2016-08-03 |
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