CN104801744B - Power tool and the operating method for the power tool - Google Patents
Power tool and the operating method for the power tool Download PDFInfo
- Publication number
- CN104801744B CN104801744B CN201510185839.1A CN201510185839A CN104801744B CN 104801744 B CN104801744 B CN 104801744B CN 201510185839 A CN201510185839 A CN 201510185839A CN 104801744 B CN104801744 B CN 104801744B
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- China
- Prior art keywords
- main shaft
- power tool
- work
- work head
- output shaft
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/003—Stops for limiting depth in rotary hand tools
Abstract
The present invention relates to a kind of power tool, including：Casing；Motor, in casing and outputting rotary power；Output shaft, with the axially arranged accepting hole for accommodating work head；Transmission mechanism, between motor and output shaft and can by motor export rotary power pass to output shaft；Storage folder, including for housing the collecting storehouse of several work heads being set up in parallel；Main shaft, can connect and be allowed to the mode of operation that is located in accepting hole and be axially moved with the release mode that separates of one of several work head through housing one of storehouse and several work head；Position-limit mechanism, between casing and main shaft, it includes the locating part for operationally being moved between two positions, in first position, the main direction motion axially away from work head of locating part limitation, in the second place, locating part allows the main direction axially away from work head to move makes main shaft be in release mode.Operating method the invention further relates to be used for above-mentioned power tool.
Description
The application is " power tool and for the power work entitled filed in 20 days July in 2012 of applicant
The operating method of tool ", the divisional application of the Chinese invention patent application of Application No. 201210259922.5.
Technical field
The present invention relates to a kind of power tool, more particularly to a kind of achievable work head storage and quick-replaceable drill gun
Class power tool.Operating method the invention further relates to be used for above-mentioned power tool.
Background technology
In existing drill gun class power tool, electric drill, electric screw driver and impact drill are generally included.
Electric screw driver is for by a kind of conventional electric tool on screw-driving to workpiece.Needed during use
When tightening the screw of different size, the difference according to screw specification changes different work heads, that is, screwdriver bit, i.e.,
The original work head installed is removed, the work head of another structure is then loaded onto.Needing the use of the frequent head that more changes jobs
Under occasion, great inconvenience is brought to operator, on the one hand cause and more change jobs loaded down with trivial details a, job on the other hand removed
Head is placed be easily lost everywhere.Although there is some to realize the storage of work head and quick-replaceable in some hand-operated tools,
It is that the inherent defect due to hand-operated tools, i.e. moment of torsion are small, operation is hard so that operator is easy to fatigue, causes inefficiency,
Be not suitable for being used as the instrument of specialty in industrial sector.
Chinese utility model patent CN201086280Y discloses a kind of Multi-tool head electric tool, including power tool body
With multi-knife-head rotaring wheel structure, multi-knife-head rotaring wheel structure includes a multi-knife-head runner cylinder that can house multiple cutter heads, and multi-knife-head turns
Cylinder is axially slidable is connected with tool body for wheel, when multi-knife-head runner tin slides into the position away from tool body, can lead to
Rotation multi-knife-head runner cylinder is crossed so as to the cutter head for selecting to need.But when multi-knife-head runner cylinder is away from tool body, its main shaft
It is exposed, dust, powder can enter inside electric tool or multi-knife-head during multi-knife-head runner cylinder is slided
The inside of runner cylinder, the time is long to cause multi-knife-head runner cylinder to rotate carries out cutter head selection, or directly results in electronic
Instrument cannot be used.And work head is against on workpiece when work, such main shaft needs to bear the active force of opposite direction,
Main shaft can bring pressure so as to moment of torsion can not be delivered to main shaft by transmission mechanism to transmission mechanism.
Further, since electric tool randomness in use, thus when shutting down on main shaft installment work head cylinder
The angle of wall is uncertain, and the angle that the head that works returns runner cylinder is also uncertain, so in the mistake of the head that more changes jobs
Cheng Zhong, it is possible to there is angle and the dislocation of work brilliance degree of the barrel of main shaft, cause work head correctly, smoothly to enter
Enter the situation of main shaft.Chinese utility model patent CN201086280Y discloses multi-knife-head runner cylinder and switch gearing, works as multitool
When head runner cylinder slides into the position away from tool body, can be by rotating multi-knife-head runner cylinder so as to the cutter head for selecting to need；
When multi-knife-head runner cylinder slides back into tool body, it drives gangbar movement, and gangbar can press switch makes motor work
Make, rotating a certain angle makes sleeve angle be engaged with cutter head angle.On the one hand, the regular motor of startup in short-term is easily made
Shortened into electrical machinery life or damaged；The angle staggered between another aspect sleeve and cutter head typically will not be very big, ordinary circumstance
The handle of lower cutter head is hexagonal, and the angle that remaining staggers with sleeve is not over 60 degree, even and if electric motor micro-motion once also will
Take a turn for the better multi-turn, if motor rotation it is not in place, not only cutter head cannot accurately, smoothly enter sleeve, it is also possible to cause motor
Or the damage of cutter head.
And, when cutter head is changed, it is necessary to cutter head first is retracted into runner cylinder, in order to prevent knife during runner cylinder axial movement
Head is held and left from runner cylinder by magnet, and Chinese utility model patent CN201086280Y discloses it by cutter head
The mode of retainer ring is set to prevent cutter head from being disengaged with runner cylinder, but such cutter head needs are especially customized so that instrument
Using without versatility.And it is directly more unstable by main shaft band dynamic cutter head speed ratio, it is main because the length of main shaft is more long
The bounce of axle is bigger, and some potential danger are brought to the user of instrument.Furthermore, because runner cylinder need axial movement with
Main shaft is separated, it is easy to cannot be cleaned into dust and other impurities.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of power tool of reliable operation.
It is another object of the present invention to provide a kind of operating method of operating efficiency power tool higher.
The technical solution adopted for the present invention to solve the technical problems is：A kind of power tool, including：Casing；Motor, if
Put in casing, and outputting rotary power；Output shaft, with the axially arranged accepting hole for accommodating work head；Transmission mechanism, if
Put between motor and output shaft and the rotary power that motor is exported can be passed to output shaft；Storage folder, is arranged in casing,
The storage folder includes the collecting storehouse for housing several work head；Main shaft, if the main shaft can through house storehouse with
Mode of operation that one of dry work head is connected and make one of several work head in accepting hole and with it is described several
It is axially moved between one of work head separate release mode；The power tool also includes being arranged between casing and main shaft
Position-limit mechanism, the position-limit mechanism includes the locating part for operationally being moved between two positions, described spacing in first position
The main direction motion axially away from work head of part limitation；In the second place, the locating part allows main axially away from the head that works
Direction motion makes the main shaft be in release mode, and the power tool also includes the operating parts being arranged on casing, the behaviour
Workpiece drives locating part to move to the second place by first position, and in the second place, the operating parts can drive
The main shaft is axially moved.
Preferably, the operating parts can be along the axial movement of main shaft.Preferably, the operating parts can relatively described main shaft
Axial movement.
Preferably, the operating parts is provided with the solution lock section offseted with locating part, and the operating parts is by the solution lock section
Locating part is driven to move between the first position and the second position.
Preferably, a part for the storage folder is housed in the casing, and another part is covered simultaneously by the operating parts
And expose as operating parts is moved.
Preferably, it is axially arranged with gathering sill, the operating parts and machine along main shaft in the operating parts and casing alternative one
Another of both shells is provided with the guide rail matched with gathering sill, and the operating parts is slided by the guide rail in gathering sill
And be axially moved along main shaft relative to casing.
Preferably, the first projection and the second projection are provided with along the main shaft axially spaced-apart inside the operating parts, it is described
Main shaft is provided with fixed block away from one end of the storage folder, and the fixed block is relative to main shaft axial restraint and positioned at described the
Between one projection and the second projection, the fixed block can be axially moved between the first projection and the second projection.
Preferably, the casing can axially be divided into the motor part for being provided with motor along main shaft, be provided with the driving section of transmission mechanism,
The storage part of storage folder is provided with, when the main shaft is in operating position, the operating parts is axially and the driving section and storage part
Overlap；When the main shaft is in off-position, the operating parts is axially Chong Die with the motor part, with driving section part weight
It is folded.
Preferably, the locating part is around pivoting parallel or perpendicular to main shaft axial direction.
Preferably, one end of the main shaft and the transmission mechanism can transmitting torque connection, the other end of the main shaft
Can be connected with the output shaft and be rotated by output shaft driving work head.
Preferably, the position-limit mechanism also includes being compressed to first position the flexible member of locating part.
Preferably, gear-box is provided with the casing, the transmission mechanism is housed in the gear-box, the gear-box
Toothed wheel box cover plate is provided with and storage folder between.
Preferably, the storage folder is rotatably supported between casing and the toothed wheel box cover plate.
Preferably, the transmission mechanism includes the planetary gear reducing mechanism being connected with motor and is connected with the main shaft
Pinion gear mechanism, be provided with the gear-box between the planetary gear reducing mechanism and the pinion gear mechanism every
Plate.
Preferably, the pinion gear mechanism includes the first gear that is connected with the planetary gear reducing mechanism and described
3rd gear of main shaft connection and the second gear for being engaged with first gear and the 3rd gear simultaneously.
The invention further relates to a kind of operating method of power tool, the power tool includes：Casing；Motor, is arranged on
In casing, and outputting rotary power；Output shaft, with the axially arranged accepting hole for accommodating work head；Transmission mechanism, is arranged on
Between motor and output shaft and can by motor export rotary power pass to output shaft；Storage folder, is arranged in casing, described
Storage folder includes the collecting storehouse for housing several work heads being set up in parallel；Main shaft, the main shaft can be through collecting
Operating position that one of storehouse and several work head is connected and makes one of several work head in accepting hole and with it is described
It is axially moved between one of several work head separate off-position；The power tool also includes being arranged on casing and main shaft
Between position-limit mechanism, the position-limit mechanism include operationally between two positions move locating part, in first position, institute
State main shaft and be in operating position, the main direction axially away from work head of locating part limitation is moved, in the second place, the limit
Position part allows the main direction axially away from work head to move, and the operating method is comprised the following steps：1) by moving operation part
Locating part is in the second place, release the limitation that locating part is axially moved to main shaft；2) moving operation part and drive at main shaft
In release mould；3) operation storage folder, selects the work head for needing；4) mobile main shaft returns back to operating position.
Preferably, the mode of the operation storage folder is rotation storage folder.
Compared with prior art, the beneficial effects of the invention are as follows：Power tool of the invention in the course of the work can be effective
Limitation main axle moving, it is ensured that reliability higher.
Brief description of the drawings
Sectional view when Fig. 1 is in running order power tool in the preferred embodiment for the present invention.
Fig. 2 is that power tool in Fig. 1 is in sectional view when more changing jobs head status.
Fig. 3 is the part isometric exploded view of power tool in Fig. 1.
Fig. 4 is the stereogram of power tool running part in Fig. 1.
Fig. 5 is the stereogram of the slip lid of power tool in Fig. 1.
Fig. 6 is the schematic diagram of the position-limit mechanism first embodiment of power tool in Fig. 1, and now position-limit mechanism is in locking
State.
Fig. 7 is similar to Fig. 6, and wherein position-limit mechanism is in released state.
Fig. 8 is the schematic diagram of the position-limit mechanism second embodiment of power tool in Fig. 1, and now position-limit mechanism is in locking
State.
Fig. 9 is similar to Fig. 8, and wherein position-limit mechanism is in released state.
Figure 10 is the schematic diagram of the implementation method of position-limit mechanism the 3rd of power tool in Fig. 1, and now position-limit mechanism is in lock
Determine state.
Figure 11 is similar to FIG. 10, and wherein position-limit mechanism is in released state.
Figure 12 is the schematic diagram of the first embodiment that limitation work head is retreated when power tool more changes jobs in Fig. 2.
Figure 13 is schematic diagram of the block piece in first position in Figure 12.
Figure 14 is schematic diagram of the block piece in the second place in Figure 12.
Figure 15 is the schematic diagram of the second embodiment that limitation work head is retreated when power tool more changes jobs in Fig. 2.
Figure 16 is schematic diagram of the block piece in first position in Figure 15.
Figure 17 is schematic diagram of the block piece in the second place in Figure 15
Figure 18 is the schematic diagram of the first embodiment of the output shaft of power tool in Fig. 1.
Figure 19 is the front view of the output shaft of power tool in Figure 18.
Figure 20 is the schematic diagram of the second embodiment of the output shaft of power tool in Fig. 1.
Figure 21 is the front view of the output shaft of power tool in Figure 20.
Figure 22 is the schematic diagram of the 3rd implementation method of the output shaft of power tool in Fig. 1.
Figure 23 is the front view of the output shaft of power tool in Figure 22.
Wherein,
1. the transmission mechanism of 2. motor of casing 3.
4. the battery of 5. Working head quick-changing mechanism of output shaft 6.
7. button switch 8,8a, 8b. position-limit mechanism 9. work head
The gathering sill of 11. handle, 13. fore shell 15.
The pinion gear mechanism of 21. motor shaft, 22. gear-box 30.
The through hole of 31. planetary gear reducing mechanism, 40. sleeve 41.
The deep gouge of step 45. in 42. radial protrusions 43.
The storage folder of 50. fixed block, 51. main shaft 52.
The steel cap 56.U type springs of 53. slip lid 54.
57. shell fragments 81,81a, 81b. limited block 82,82a. bearing pins
The perforate of 83. torsion spring 83b. springs 131.
The arched member of 221. dividing plate, 223. toothed wheel box cover plate 225.
The gear of 301. first gear, 302. second gear 303. the 3rd
The side of 411. bottom surface, 412. side 413.
The annular groove of 421. inclined-plane, 511. magnet 512.
521. work heads house the pressing plate 523. of storehouse 522. and are open
The solution closing piece 533. of 526.U type grooves 532. inclined-plane
The tread plate of 535. first 536. second projection of projection 537.
The side of 571. elasticated end 813.
Specific embodiment
In the preferred embodiment of power tool of the present invention, power tool is powered screwdriver, according to power source not
Pneumatic screw driver can be divided into together, surge screwdriver and electric screw driver, also have direct current in electric screw driver with dividing for exchanging, this hair
It is bright to be preferably specifically described by taking DC electric screwdriver as an example.
Referring to figs. 1 to shown in Fig. 3, the DC electric screwdriver includes casing 1, motor 2, battery 6, transmission mechanism 3, work
Head quick-changing mechanism 5 and output shaft 4.Casing 1 is closed up by screw (not shown) by symmetrical two half shells and assembles,
It has the part of handle 11 that horizontal component and K angled with horizontal component are set, and currently preferred angle K is arrived at 100 degree
Between 130 degree, such gripping handle 11 can be pleasant when operating.Button switch 7, battery are provided with the top of the part of handle 11
6 bottoms for being fixed on the part of 2 handle of casing 11, the part of transmission mechanism 3 is fixed and is housed in the horizontal component of casing 1.As excellent
The implementation method of choosing, the battery 6 can be lithium ion battery.It should be noted that lithium ion battery described here is negative pole
Material is the general name of the rechargeable battery of elemental lithium, and according to the difference of positive electrode, it may make up many systems, such as " lithium manganese " electricity
Pond, " lithium iron " battery etc..In the present embodiment, lithium ion battery is the lithium ion battery of section 3.6V (volt).Certainly, battery
6 can also be the battery types well known to those skilled in the art such as NI-G, ni-mh.
(right side with drawing is rear) includes the planetary gear reducing mechanism driven by motor 2 to transmission mechanism 3 from the front to the back
31 and pinion gear mechanism 30, wherein pinion gear mechanism 30 is connected with Working head quick-changing mechanism 5, and by Working head quick-changing mechanism 5
The rotary motion of motor 2 is passed into output shaft 4.Wherein Working head quick-changing mechanism 5 is included for storing different work heads
Storage folder, it is first-class that work head here refers mainly to the conventional crosspoint tip screwdriver head of electric screw driver, flat blade screwdriver, by setting work head soon
Converting mechanism 5 can when electric screw driver is tightened or unclamps different screws the different work head of quick-replaceable.
According to the composition of above electric screw driver, electric screw driver can successively from the front to the back (right side with drawing is rear) point
Into the motor part D for setting motor, the driving section C of transmission mechanism 3 is set, the storage part B of storage folder is set and output shaft is set
Output section A.
Motor in the preferred embodiment for the present invention is motor 2, and motor 2 has the motor extended anteriorly out from electric machine casing
Axle 21.Motor 2 is fixed in casing 1, and a gear-box 22 is fixed in casing 1 and is located at the front portion of motor 2, and gear-box 22 is used for
House planetary gear reducing mechanism 31 and pinion gear mechanism 30.Wherein planetary gear reducing mechanism 31 has three-level deceleration system,
The extension of motor shaft 21 is engaged with planetary gear reducing mechanism 31, and planetary gear reducing mechanism 31 communicates rotational motion to little gear
Mechanism 30.When so motor 2 runs, by planetary gear reducing mechanism 31, pinion gear mechanism 30, finally exported by output shaft 4.
In the present embodiment, reducing gear is made up of to obtain wanted output speed three-level deceleration system, in other embodiment party
In formula, depending on the rotating speed of required output, reducing gear can only include one-level or double reduction system, it is also possible to including more stages
Deceleration system.
Pinion gear mechanism 30 is also housed in 22 in gear-box, by planetary gear reducing mechanism 31 and pinion gear mechanism
Dividing plate 33 is set between 30 to separate the two, and toothed wheel box cover plate 223 is set between gear-box 22 and Working head quick-changing mechanism 5,
Transmission mechanism 3 can so be separated with storage folder 52, i.e. transmission mechanism 3 and storage folder 52 is separate.Pinion gear mechanism
30 include with planetary gear reducing mechanism 31 can the first gear 301 that is connected of transmitting torque, be connected with Working head quick-changing mechanism 5
3rd gear 303 and the second gear 302 engaged with the gear 303 of first gear 301 and the 3rd, second gear 302 is by first
The rotation of gear 301 passes to the 3rd gear 303, and the two ends of each gear are supported by axle sleeve.The middle part of dividing plate 221 sets
There is the hole passed through for the axle of first gear 301, the end face of dividing plate 221 is provided with the groove for mounting sleeve, supports little gear machine
The rear axle housing of structure 30 is fixed on dividing plate 221, and front shaft sleeve is fixed on toothed wheel box cover plate 223, toothed wheel box cover plate 223 and gear-box
22 can be fixedly linked by screw, buckle etc., in this way, i.e. can be 31 points of pinion gear mechanism 30 and planetary gear reducing mechanism
Open, while both can be closed again, prevent dust, powder etc. from entering inside transmission mechanism 3, it is also possible to prevent letting out for lubricating oil
Leakage.It is intended merely to make the inner space of instrument compacter in addition, setting three gears, it is attractive in appearance from outside without influence.When
So, it is also possible to be arranged as required into two gears, one is connected with planetary gear reducing mechanism 31, another and chuck quick change
Mechanism 5 is connected.In addition, transmission mechanism 3 is not limited to above-described form, transmission mechanism 3 can only include planetary gear
Reducing gear 31, or only include pinion gear mechanism 30, or other rotary motion transmission mechanisms, such as ratchet mechanism, turbine
Mechanism etc..
Working head quick-changing mechanism 5, is connected between output shaft 4 and pinion gear mechanism 30, including can be passed with the 3rd gear 303
Torque delivery connection main shaft 51, work head storage folder 52 and operation axis 51 move axially with through or leave work head deposit
The slip lid 53 of storage folder 52.Main shaft 51 can be connected with output shaft 4 and drive output shaft 4 to rotate, and fore shell 13 is connected with casing 1,
A part for work head storage folder 52 is housed in fore shell 13, and another part is covered by slip lid 53 and revealed with the movement of slip lid 53
Go out.Currently preferred storage folder 52 is cylindrical shape, convenient rotation, while occupying little space, naturally it is also possible to set squarely
Or triangle etc..When electric screw driver works, slip lid 53 is abutted with fore shell 13, so can be work head
Storage folder 52 and main shaft 51 are all closed.The position of correspondence main shaft 51 is provided with what is passed through for main shaft 51 on toothed wheel box cover plate 223
Hole, arched member 225 is extended with gear-box 22 around the axis of main shaft 51, and arched member 225 can be wholely set with gear-box 22,
Can be provided separately, can be partially enclosed by main shaft 51 by setting arched member 225, more changed jobs in electric screw driver
Head 9 when, i.e., slip lid 53 moves to the position of rearmost end and also main shaft 51 will not be exposed to come, and can so prevent dust, powder
The inside of the entering tools such as end.And, toothed wheel box cover plate 223 extends to the end face of arched member 225, so that vertically by driver
The integrally closed of structure 3 is together.In the course of the work, can be closed for work head storage folder 52 by slip lid 53, so as to prevent ash
Dirt enters, and when needing more to change jobs, work head storage folder 52 is exposed slip lid 53 is removed by, convenient to select different work
Head, is so accomplished by slip lid 53 with certain length, when slip lid 53 moves to the operating position abutted with fore shell 13, slip lid
53 with storage part B and driving section C axial overlaps, when slip lid 53 moves to the position of replaceable work head, slip lid 53 and motor
Portion's D axial overlaps, and with driving section C portion axial overlap.Certainly, the mode of the movement of slip lid 53 also has a lot, such as slip lid 53
It is rotatably mounted on casing 1, is rotated between covering storage folder 52 and two positions for exposing storage folder 52；Or similar to
The mode of sliding door, can open or close；Or the mode of window for being connected to casing 1 for pivoting etc., can realize
During work will the closing of storage folder 52, it is necessary to storage folder 52 is exposed when more changing jobs.
Output shaft 4 is form of sleeve, in it can installment work first 9, and first 9 rotation of work can be driven, the present invention passes through
Main shaft 51 inserts output shaft 4 and drives output shaft 4 to rotate, and then will rotation by way of output shaft 4 drives first 9 rotation of work
Motion passes to work first 9, so using the work first 9 of standard, and can house work first 9 without being opened up on main shaft 51
Hole, it is to avoid the excessive weight and volume for increasing whole machine of the diameter of main shaft 51.Output shaft 4 is supported on fore shell 13 by a sleeve 40
In axial aperture 131, sleeve 40 is fixed in the perforate 131 of fore shell 13, and radial support and axially position are provided to output shaft 4.
So, the distance for being output shaft, shortening moment of torsion transmission of first 9 rotation of work is directly driven, so that the use of instrument more may be used
Lean on.It is above-described that to be main shaft started building to make by way of head rotates output shaft indirect belt, but, those skilled in the art hold very much
It is readily conceivable that other transmission means to substitute, such as main shaft directly drives work head rotation, i.e. main shaft directly with work head with can
The mode of transmitting torque is connected.
Fig. 1 to Fig. 3 coordinates shown in reference picture 5, and main shaft 51 is six square shafts, and axial restraint is provided with a fixed block on main shaft 51
50, the rear end of main shaft 51 is rotatably against on fixed block 50, and slip lid 53 can drive master by way of being connected with fixed block 50
Axle 51 is moved.The inside of slip lid 53 is provided with the first projection 535 and the second projection 536 along the axially spaced-apart of main shaft 51, in electric screw
The working condition of knife, the first projection 535 has apart from S with the axially spaced-apart of fixed block 50, when slip lid 53 is slided backward, i.e., towards motor
2 direction is slided, and has slided after S, and the first projection 535 is axially abutted with fixed block 50, so as to slip lid 53 drives fix
Block 50 then drives main shaft 51 to move axially backward；In the state of electric screw driver replaceable work head, the second projection 536 with it is solid
Determining the axially spaced-apart of block 50 has apart from S, when the forward slip of slip lid 53, i.e., is slided towards the direction of output shaft 4, slided apart from S it
Afterwards, the second projection 536 is axially abutted with fixed block 50, so that slip lid 53 drives fixed block 50 then to drive main shaft 51 axially forward
It is mobile.Certainly, slip lid 53 drives the mode of the movement of main shaft 51 to also have a lot, can such as be set on main shaft 51 around its outer Monday
The annular groove in week, slip lid 53 is extend into annular groove by a pin or steel wire ring and is connected with main shaft 51, so neither influences main shaft
51 rotation, nor affects on the movement that slip lid 53 drives main shaft 51.
The edge of slip lid 53 is provided with guide rail 531, and corresponding casing 1 is provided with gathering sill 15, and slip lid 53 passes through its guide rail 531
Can be slid axially relative to casing 1 in gathering sill 15.It is of course also possible to be that gathering sill is set on slip lid 53, casing 1
The upper mode for setting guide rail causes that slip lid is moved.In addition, the both sides outside slip lid 53 are provided with the tread plate 537 of concave or convex,
Operator's finger is blocked can be prevented from skidding when slip lid 53 is moved.
Work head storage folder 52 is rotatably supported between toothed wheel box cover plate 223 and fore shell 13, work head storage folder 52
On be evenly distributed with multiple work heads along its circumferencial direction and house storehouses 521, work head houses storehouse 521 along work head storage 52 axles of folder
To a part close, a part of excircle open wide, so facilitate operator select work it is first 9 when can hold very much from unlimited part
Easily the shape of first 9 head of work is seen, so as to quickly select the work first 9 for needing.Certainly, those skilled in the art are easy to think
Arrive, it can also be totally enclosed that work head houses storehouse 521, need to be only identified in corresponding position, or directly by work head
Storage folder 52 make it is transparent, can conveniently recognize.Furthermore it is possible to work head storage folder 52 and toothed wheel box cover plate 223 it
Between carry out it is flexibly positioned, i.e., work head storage folder 52 in face of toothed wheel box cover plate 223 end faces on correspondence work first 9 position set
Groove is put, the steel cap compressed by spring, or shell fragment is set on toothed wheel box cover plate 223, then, work head storage folder 52 is often turned over
One work first 9 can all send steel cap or shell fragment falls into the voice prompt of groove, so as to more facilitate operator to select work
First 9, and because these positions pre-set, the angle of the rotation of work head storage folder 52 can be avoided wrong with main shaft 51
Open.Foregoing is to select different work heads by way of storing folder rotation, naturally it is also possible to by storing intermediate straight line
The mode of motion, such as the head that works is arranged side by side along the radial direction of storage folder, is accomplished by radially promoting during selection work head and deposits
Chu Jia.It is axial restraint to store folder in the other preferred embodiment of the present invention, is axially moved by main shaft and drives work head
Be operated into output shaft, naturally it is also possible to be arranged to main shaft axial restraint, by store folder axial movement rotate again or
In the way of person is moved radially to select work head, so as to can also realize just realizing the fast of work head without removing work head
Speed is changed.
The front end of main shaft 51 is provided with magnet 511, for adsorbing work first 9, when select good berth it is first 9 when, operable slip lid
53 drive main shaft 51 to house storehouse 521 through the work head for housing the work first 9, and work first 9 is inhaled by the magnet 511 on main shaft 51
It is attached, and work head collecting storehouse 521 is left under the promotion of main shaft 51, into output shaft 4.When work, main shaft 51 drives defeated
Shaft 4 rotates, and output shaft 4 drives first 9 rotation of work.
Electric screw driver needs axially to be pressed on work first 9 on screw or workpiece when being operated, so
Work 9 can be subject to a reverse responsive to axial force, can produce the rear shifting of main shaft 51, and the present invention is proposed to solve this problem
Three kinds of solutions, illustrate individually below.
To shown in Fig. 7, the place that fixed block 50 is closed in the rear end of main shaft 51 is provided with the limit for preventing main shaft 51 from retreating to reference picture 4
Position mechanism 8, position-limit mechanism 8 includes pivotable limited block 81, and the torsion spring 83 of limited block 81 is biased along the pivotal orientation of limited block 81.
One end of wherein limited block 81 props up fixed block 50, and the other end is arranged on gear-box 22 or on casing 1 by a bearing pin 82,
The diameter parallel of bearing pin 82 can rotate around bearing pin 82 in the axis of main shaft 51, limited block 81 in the range of certain angle.Turn round
One end of spring 83 is fixed on limited block 81, and the other end is against on gear-box 22 or on casing 1, and the elastic force of torsion spring 83 makes spacing
Block 81 is maintained at the first position offseted with fixed block 50 (shown in Fig. 4 and Fig. 6).Such position-limit mechanism 8 is preferably provided two,
It is distributed along the axisymmetrical of main shaft 51, can so keeps stress balance, makes the axial limiting of main shaft 51 relatively reliable.Work as needs
During mobile main shaft 51, the limitation moved to main shaft 51 can be released by sliding slip lid 53.Be provided with inside slip lid 53 with it is spacing
The solution closing piece 532 that block 81 matches, solution closing piece 532 is provided with inclined-plane 533, when slip lid 53 is moved rearwards by, inclined-plane 533 and limited block
81 side 813 contacts, and limited block 81 overcomes the elastic force of torsion spring 83 to act on around bearing pin under the drive on inclined-plane 533
82 rotations, until limited block 81 is disengaged with fixed block 50, fixed block 50 is unlocked, so that limited block 81 is in allows the axle of main shaft 51
To the second place (shown in Fig. 7) of motion.Main shaft 51 continues to move axially, and limited block 81 is stuck in the two ends of fixed block 50, this
When can be carried out the head that more changes jobs.It can thus be seen that elder generation sliding distance S is to release before slip lid 53 drives main shaft 51 to move
The limitation that limited block 81 is axially moved to main shaft 51, as long as therefore limited block 81 pairs can be released apart from the movement that S meets slip lid 53
The locking that main shaft 51 is axially moved.After work head is more finished changing, slip lid 53 moves forward, and drives main shaft 51 and fixed block 50 also forward
Mobile, the inclined-plane 533 on solution closing piece 532 is contacted and separated with the reach of slip lid 53 again with the side 813 of limited block 81,
Limited block 81 comes back to the position axially offseted with fixed block 50 in the presence of torsion spring 83, such electric screw driver work
When, output shaft 4 is stretched into the front end of main shaft 51, and the fixed block 50 for being located at the rear end of main shaft 51 is limited block 81 and axially props up, and so leads
The axial movement of axle 51 is limited, i.e., main shaft 51 cannot be retreated, so that the use of electric screw driver is relatively reliable.
It is second implementation method of position-limit mechanism 8 shown in reference picture 8 and Fig. 9, and unlike above-mentioned position-limit mechanism 8,
The axis of bearing pin 82a is perpendicular to the axis of main shaft 51, and one end of limited block 81a is pivotally connected with bearing pin 82a, and the other end is formed as
It is hook-shaped, hook on fixed block 50, such fixed block 50 can be also moved rearwards by by limitation, so as to limited block 81a is in locking lead
The first position that axle 51 is axially moved (shown in Fig. 8).Slip lid 53 moves the inclined-plane 533 and limited block 81a made on its solution closing piece 532
Contact, limited block 81a rotated down around bearing pin 82a and release the locking to fixed block 50 in leading for inclined-plane 533, so that spacing
Block 81a is in the second place for allowing main shaft 51 to be axially moved (shown in Fig. 9).The effect of position-limit mechanism 8a is former in present embodiment
Reason is identical with first embodiment, repeats no more here.
It is the third implementation method of position-limit mechanism 8 shown in reference picture 10 and Figure 11, position-limit mechanism 8b includes limited block
, relative to the axial restraint of casing 1, limited block 81b can be along perpendicular to the side of the axis of main shaft 51 for 81b and spring 83b, limited block 81b
To linear motion, one end of spring 83b is housed in limited block 81b, and the other end is connected with casing 1 or gear-box 22, spring
83b biass limited block 81b keeps it in the first position that axial direction offsets with fixed block 50 (shown in Figure 10).In present embodiment
In, it is also that fixed block 50 is axially moved to release with limited block 81b interactions by the inclined-plane 533 being arranged in slip lid 53
Locking, limited block 81b overcome the elastic force of spring 83b be linearly moved to release to main shaft 51 locking the second place (Figure 11 institutes
Show).The incline direction on inclined-plane 533 here can be selected according to the direction of limited block 81b motions, and such as limited block 81b is along vertical
Directly in the horizontal motion of the axis of main shaft 51, inclined-plane 533 is flat relative to what the direction of the axis of main shaft 51 and vertical direction were formed
Face inclines；Limited block 81b is moved along the vertical direction perpendicular to the axis of main shaft 51, direction of the inclined-plane 533 relative to main-shaft axis
The planar tilt formed with horizontal direction；Limited block 81b is along the direction angled with horizontal direction perpendicular to the axis of main shaft 51
Motion, such limited block 81b has along the component in horizontally and vertically both direction, therefore the incline direction on inclined-plane 533 can have many
Individual selection, those skilled in the art can be easy to think of, and repeat no more here.
Three kinds of implementation methods of above-described position-limit mechanism 8, are to move to release limited block 81 pairs by slip lid 53
The locking that main shaft 51 is axially moved, because slip lid 53 will also drive main shaft 51 to move axially, is so accomplished by slip lid 53 and first moves
One segment distance, i.e., first release the locking that limited block 81 is axially moved to main shaft 51, could again drive main shaft 51 to move axially, slip lid
53 inside drive the first projection 535 of the movement of main shaft 51 to be set with the axially spaced-apart of fixed block 50, and axially spaced a distance can pass through
The angle of inclination on inclined-plane 533 and the ultimate range radially superposed with fixed block 50 of limited block 81 determine.Certainly, art technology
Personnel by way of slip lid 53 is moved it can also be appreciated that without that can also realize that release limited block 81 axially transports to main shaft 51
Dynamic locking, such as sets outward the knob being connected with limited block 81 in casing 1, drives limited block 81 to overcome spring by turn knob
Power rotates or mobile；Or the toggle or button being connected with limited block 81 be set outward in casing 1, by promote toggle or
Pressing button can also drive limited block 81 to overcome spring force rotation or movement etc., can realize releasing limited block 81 pairs
The locking that main shaft 51 is axially moved.
Furthermore it is possible to set flexible member between slip lid 53 and casing 1 or gear-box 22, slip lid 53 backs to end
Can be blocked by the lock on casing 1 during position, working condition can be automatically returned under elastic force when slip lid 53 is released
Position.
When needing electric screw driver to work, main shaft 51 moves forward under the drive of slip lid 53, the work that promotion has been selected
Make head into output shaft 4, when needing more to change jobs, main shaft 51 is retreated under the drive of slip lid 53, because main shaft 51 and work
The one end for making head contact is provided with magnet 511, so main shaft 51 can drive the work head that work head returns to work head storage folder 52 to receive
Hold in storehouse 521.And if moved after main shaft 51 continues, work head can be driven to be housed in storehouse 521 out from work head, lead to not more
Changed jobs head, if operator does not have found, rotary work head is stored when pressing from both sides 52, it is more likely that cause the damage of instrument.This hair
It is bright to propose two kinds of solutions to solve this problem, illustrate individually below.
Shown in reference picture 3 and Figure 12 to Figure 14, for the first implementation method that limitation work head is retreated with main shaft 51.Work
Head storage folder 52 is provided with pressing plate 522 in face of one end of gear-box 22, and pressing plate 522 can together revolve with work head storage folder 52
Turn, pressing plate 522 can be set with work head storage 52 integral types of folder, can also be provided separately, and present embodiment is preferably and is provided separately,
Both processing is facilitated, also easily assembling.The position that the correspondence work head of pressing plate 522 houses storehouse 521 is provided with opening 523, for through master
Axle 51, U-type groove 526 is provided with opening 523 on the end face of work head storage folder 52, U-shaped for housing U-shaped spring 56
It is Chong Die, the elastic deformation of the design of U-type groove 526 to U-shaped spring 56 with opening 523 that spring 56 has part in free state
It is reserved with space.Because the quantity that currently preferred work head houses storehouse 521 is 6,523 quantity of corresponding opening are also 6
Individual, the quantity of U-type groove 526 and U-shaped spring 56 is similarly 6, certain those skilled in the art it is readily conceivable that opening 523, U
Type groove 526 and U-shaped spring 56 can also only set one, i.e. pressing plate 522 and be fixedly installed relative to gear-box 22, such main shaft 51
What is passed through every time is same opening 523, does not interfere with rotary work head storage folder 52 to select work head.When main shaft 51 is retreated
And when being moved rearwards by with work head in the presence of magnet 511, the meeting of U-shaped spring 56 elastic deformation is stuck on main shaft 51, i.e., U-shaped
Spring 56 is in the first position (reference picture 13) for allowing main shaft 51 to move.Because the end of the connection work head of main shaft 51 and work
The end of head connection main shaft 51 all has chamfering or rounding, when opening for pressing plate 522 is left in the end of the connection work first 9 of main shaft 51
During mouth 523, U-shaped spring 56 replys free state, and the part of opening 522 is blocked, when work first 9 is with the continuation retrogressing of main shaft 51
Stopped by U-shaped spring 56, i.e., U-shaped spring 56 is in the second place (reference picture 14) that limitation work first 9 is retreated.Such main shaft 51
Separated with work first 9, can arbitrarily 52 another work first 9 to select to need of rotary work head storage folder.In power spiral shell
When silk knife works, in order to prevent U-shaped spring 56 from causing resistance to the rotation of main shaft 51, U can be axially corresponded on main shaft 51
Set around the main shaft annular groove of 51 1 weeks 512 at the position of type spring 56, so U-shaped spring 56 will not be to the rotation of main shaft 51
Turn to cause interference.
Reference picture 15 to shown in Figure 17, for second implementation method that limitation work first 9 is retreated with main shaft 51.Gear box cover
A shell fragment 57 is fixed with plate 223, shell fragment 57 is arranged between work head storage folder 52 and toothed wheel box cover plate 223, on shell fragment 57
At least one elasticated end 571 is provided with, the part of elasticated end 571 is stretched into the hole on toothed wheel box cover plate 223, so by elasticity
The elastic deformation of end 571, it is also possible to which work first 9 is blocked in realization, prevents main shaft 51 from driving work first 9 to leave work head when retreating
Storage folder 52.Reference picture 16, elasticated end 571 is in the first position for allowing main shaft 51 to move；Reference picture 17, elasticated end
571 second places retreated in limitation work first 9.According to present embodiment, those skilled in the art it is readily conceivable that can be with
Directly elasticated end 571 is stuck on toothed wheel box cover plate 223, or rigid stator is set, stator can be made by elasticity
Moved between the hole on partial occlusion toothed wheel box cover plate 223 and the hole Liang Ge positions for leaving on toothed wheel box cover plate 223.
Generally, the axially disposed interior hexagonal hole of output shaft 4, to drive first 9 rotation of the work of six sides.But such as
When fruit work first 9 enters output shaft 4 under the drive of main shaft 51, if six side's external forms of work first 9 and hexagonal hole in output shaft 4
Angle staggers, and can bring very big inconvenience to operator.In order to prevent the generation of such case, knot of the present invention to output shaft 4
Structure is improved, and is the first implementation method of output shaft 4 shown in reference picture 18 to Figure 19, and output shaft 4 is axially disposed logical
Hole 41, the torque transfer part for the moment of torsion of output shaft 4 to be passed to work first 9 is provided with through hole 41 and drive work head with
The correction unit that torque transfer part matches, torque transfer part is at least one radial protrusion 42 being arranged in through hole 41, radial convex
Rise 42 can with one of face of the work first 9 of six sides against and limit work first 9 and rotated relative to output shaft 4.Correction unit
To be arranged at the inclined-plane 421 for closing on the one end of transmission mechanism 3 in through hole 41, can be on inclined-plane when work first 9 is contacted with inclined-plane 421
Drive output shaft 4 or work first 9 to rotate so that through hole 41 first with work 9 under 421 guiding to match, that is to say, that inclined-plane
421 serve correction work first 9 when work first 9 enters through hole 41 relatively radially raised 42 position, that is, work first 9 and output shaft
4 rotate against, and so as to the corner angle for preventing work first 9 are blocked by radial protrusion 42, first 9 through hole 41 can be smoothly entered to work
It is interior.Currently preferred inclined-plane 421 is circumferentially inclined, the channeling direction that so work first 9 and output shaft 4 are rotated against
Definitely.In the present embodiment, radial protrusion 42 sets 12, is circumferentially uniformly distributed, so that output shaft 4
Normal section is formed as the dodecagon that each projection is for 150 degree, and dodecagon here is by between two hexagon circumferencial directions
It is formed by stacking every 30 degree.When main shaft 51 pushes the work forward first 9 into output shaft 4, if six sides of work first 9 and the ten of output shaft
Two jiaos are staggered, and first 9 six angles of working like that can be against on inclined-plane 421, and work first 9 axial movement, on inclined-plane 421 circumferentially
Under the inclined guiding in direction, the through hole 41 at angle and output shaft 4 that work first 9 or output shaft 4 are rotated up work first 9 matches,
First 9 output shaft 4 is smoothly entered so as to work.In addition, radial protrusion 42 and inclined-plane 421 can link together, radial protrusion
42 is axially extending along output shaft 4, and so the contact area with work first 9 is bigger, and the effect of transmitting torque is more preferable.Certainly, radially
Projection 42 and inclined-plane 421 can also be provided separately, mode that axially disconnection or circumferencial direction stagger etc..
To second implementation method for shown in Figure 21, being output shaft 4, the radial protrusion 42 in through hole 41 only sets reference picture 20
One is put, is dodecagonal one of angle, one end of same radial protrusion 42 sets inclined-plane 421, and inclined-plane 421 is along circle
Circumferential direction is inclined, likewise, output shaft 4 can just drive first 9 rotation of work by a radial protrusion 42, and by one tiltedly
The guiding in face 421 can also realize work first 9 or the rotation of output shaft 4 so that work first 9 smoothly enters output shaft 4.But,
Work head houses and gap presence is always had between storehouse 521 and work first 9, and main shaft 51 drives work first 9 to enter output shaft 4 every time
Before, can there is deviation in the axis of work first 9 and the axis of main shaft 51, so work first 9 being capable of the radial motion in output shaft 4
Space has bigger motion sky to make work first 9 when working first 9 into output shaft 4 with regard to very little relative to output shaft 4
Between, guide part can be further set in through hole 41, guide part is to be arranged in through hole 41 to close on work head storage folder 52
The interior step 43 of one end, the internal diameter of the internal diameter more than through hole 41 of interior step 43, passes through inclined-plane mistake between interior step 43 and through hole 41
Cross, the height vertically of interior step 43 is substantially equal to the height vertically of inclined-plane 421, so have just enter into output shaft 4 in work first 9
When, work first 9 has the space of bigger rotation or axial movement relative to output shaft 4, more suitable hence into output shaft 4
Profit.
It is the third implementation method of output shaft 4 shown in reference picture 22 and Figure 23, in order to prevent work first 9 from entering output
It is just the sharp just to the tip of radial protrusion 42 of peripheral six side of work first 9 during axle 4, can be in the interior and footpath of 4 through hole of output shaft 41
To the deep gouge 45 that the raised 42 position settings relative at center are communicated with interior step 43, center is relative to be referred herein to and radial direction
The raised 42 centrosymmetric point in tip is located between two sides 413 of deep gouge 45, and deep gouge 45 has what is be connected with through hole 41
Bottom surface 411 and two sides 412, angled transition between bottom surface 411 and through hole 41 are easily directed to work first 9 in through hole 41,
Two sides 412 circumferentially incline, so when work first 9 enters output shaft 4 and the point of first 9 peripheral six side that works is just right
During the tip of radial protrusion 42, first 9 radial motion that works is rotated down to deep gouge 45 in leading for side 412, while in bottom surface
411 lead is downwardly into through hole 41.So ensure that work first 9 can smoothly enter output in any angle
Axle 4.
The above-described radial protrusion 42 for output shaft 4 contacts the mode for driving first 9 rotation of work with first 6 face that works,
So work first 9 uniform force, and unit area stress is small.Certainly, the radial protrusion 42 of output shaft 4 and first 9 linear contact lay of work
First 9 rotation of work can be driven, such as：The angle of radial protrusion 42 is not limited, as long as it can drive first 9 rotation of work, its one end
Inclined-plane 421 along the circumferential direction incline, can also so realize that work first 9 smoothly enters output shaft 4.
A present invention work quick-replaceable process will below be elaborated.
Shown in reference picture 1, electric screw driver is in running order, and now depression of push button switch 7 can carry out twisting screw
Work.When need to change a further type of work it is first 9 when, operation slip lid 53 is moved to the direction of motor 2, coordinates reference picture
Shown in 5, Fig. 8 and Figure 13, the inclined-plane 533 on slip lid 53 is contacted with a side 813 on limited block 81, with the shifting of slip lid 53
Dynamic, limited block 81 is pivoted to the position shown in Fig. 9 in the presence of inclined-plane 533, and now limited block 81 is relieved to fixation
The locking that block 50 is axially moved, while slip lid 53 also moves to the position that the first projection 535 is contacted with fixed block 50；Next after
Continue and move slip lid 53 to the direction of motor 2, slip lid 53 drives main shaft 51 mobile in the same direction therewith by fixed block 50, main shaft 51
On annular groove 512 cross U-shaped spring 56, six side parts on main shaft 51 contact and with main shaft 51 with U-shaped spring 56
Move afterwards and force the elastic deformation of U-shaped spring 56, until main shaft 51 is moved to departing from U-shaped spring 56, U-shaped spring 56 returns back to freedom
State (as shown in figure 14), slip lid 53 continues to drive main shaft 51 to be moved to extreme position, and working first 9 cannot cross U-shaped bullet
Spring 56 now, storehouse 521 is housed by the work head being arranged on work head storage folder 52 so as to stay in work head storage folder 52
Open section find need change work first 9, rotary work head storage folder 52, by required work first 9 go to it is defeated
The axially opposing position of shaft 4, i.e., position as shown in Figure 2.
Next, with continued reference to Fig. 2, being resetted to the direction movement slip lid 53 of output shaft 4, slip lid 53 passes through the second projection
536 are against drive main shaft 51 on fixed block 50 moves to the direction of output shaft 4, and main shaft 51 is provided with one end of magnet 511 and has selected
First 9 afterbody of work selected is contacted and adsorbs the work first 9, and slip lid 53 drives main shaft 51 to be moved to the direction of output shaft 4, coordinates ginseng
According to Figure 20, when working first 9 into output shaft 4, under the guiding on inclined-plane 421, first 9 are worked smoothly into output shaft 4, and main shaft
51 continue to move to slip lid 53, until work first 9 is exposed from the front end of output shaft 4, slip lid 53 is returned to and is abutted with fore shell 13
Position, now, the inclined-plane 533 on slip lid 53 departs from limited block 81, and limited block 81 is returned to and fixation under elastic reaction
The position that block 50 axially offsets, such electric screw driver has been returned to the working condition shown in Fig. 1.The mistake that whole work head is changed
Journey is simple to operate, quickly, for the user, can greatly improve operating efficiency.
The above-mentioned definition to each element is not limited in the various concrete structures mentioned in implementation method or shape, this area
Those of ordinary skill it can be carried out simply know replace.Such as motor can substitute electricity with gasoline engine or diesel engine
Machine；Work head can be the polygon that section is arbitrary rule；Additionally, in above-mentioned implementation method, main shaft is stored with work head
Moving to axial between folder can also be that main shaft is fixed, and the head storage folder that works can either be axially moved and can also rotate,
And main shaft can also be coaxially disposed etc. with motor shaft.In addition, position-limit mechanism is mainly used in limitation main shaft be axially moved, to it
Structure simultaneously has no special requirements, and the interior of visual difference casing accordingly changes configuration, can increase new element, it is also possible to
Reduce unnecessary element.
Claims (11)
1. a kind of power tool, including：
Casing；
Motor, is arranged in casing, and outputting rotary power；
Output shaft, with the axially arranged accepting hole for accommodating work head；
Transmission mechanism, is arranged between motor and output shaft and the rotary power that motor is exported can be passed into output shaft；
Storage folder, is arranged in casing, and the storage folder includes the collecting storehouse for housing several work head；
Main shaft, the main shaft can connected through one of collecting storehouse and several work head and make one of several work head position
It is axially moved in the mode of operation in accepting hole and between the release mode that separates of one of described several work head；
It is characterized in that：The power tool also includes the position-limit mechanism being arranged between casing and main shaft, the position-limit mechanism
Including the locating part for operationally being moved between two positions, in first position, the locating part limitation is main axially away from work
The direction motion of head；In the second place, the locating part allows the main direction axially away from work head to move to be made at the main shaft
In release mode, the power tool also includes the operating parts being arranged on casing, and the operating parts drives locating part by first
Position moves to the second place, and in the second place, the operating parts can drive the main shaft to be axially moved.
2. power tool as claimed in claim 1, it is characterised in that：The operating parts can be along the axial movement of main shaft.
3. power tool as claimed in claim 2, it is characterised in that：The operating parts can relatively described main shaft axial movement.
4. power tool as claimed in claim 3, it is characterised in that：The operating parts is provided with the unblock offseted with locating part
Portion, the operating parts drives locating part to move to the second place by first position by the solution lock section.
5. power tool as claimed in claim 1, it is characterised in that：A part for the storage folder is housed in the casing
Interior, another part is covered and exposed as operating parts is moved by the operating parts.
6. power tool as claimed in claim 1, it is characterised in that：The locating part is around parallel or perpendicular to spindle shaft
To pivot.
7. power tool as claimed in claim 1, it is characterised in that：One end of the main shaft can transmit with the transmission mechanism
The connection of moment of torsion, the other end of the main shaft can be connected with the output shaft and be rotated by output shaft driving work head.
8. power tool as claimed in claim 1, it is characterised in that：The position-limit mechanism also includes compressing limit to first position
The flexible member of position part.
9. a kind of operating method of power tool, as claimed in claim 1, the operating method includes following the power tool
Step：1) locating part is in the second place by moving operation part, release the limitation that locating part is axially moved to main shaft；2) move
Dynamic operating parts simultaneously drives main shaft to be in release mode；3) operation storage folder, selects the work head for needing；4) mobile main shaft is returned back to
Mode of operation.
10. operating method as claimed in claim 9, it is characterised in that：The operating procedure 1) in by move axially operate
Part makes locating part be in the second place.
11. operating methods as claimed in claim 9, it is characterised in that：The mode of the operation storage folder is rotation storage folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185839.1A CN104801744B (en) | 2011-08-06 | 2012-07-20 | Power tool and the operating method for the power tool |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102246411 | 2011-08-06 | ||
| CN201110224641 | 2011-08-06 | ||
| CN201510185839.1A CN104801744B (en) | 2011-08-06 | 2012-07-20 | Power tool and the operating method for the power tool |
| CN201210259922.5A CN102909679B (en) | 2011-08-06 | 2012-07-20 | Power tool and operation method for power tool |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210259922.5A Division CN102909679B (en) | 2011-08-06 | 2012-07-20 | Power tool and operation method for power tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104801744A CN104801744A (en) | 2015-07-29 |
| CN104801744B true CN104801744B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210166388.3A Active CN102909710B (en) | 2011-08-06 | 2012-05-25 | Power tool |
| CN201210166387.9A Active CN102909709B (en) | 2011-08-06 | 2012-05-25 | Power tool |
| CN201220290596XU Expired - Lifetime CN202702201U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210204007.6A Active CN102909702B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210203955.8A Active CN102909701B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN2012202905809U Expired - Lifetime CN202702200U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201220290564XU Expired - Fee Related CN202702198U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN2012202905781U Expired - Fee Related CN202702199U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210204006.1A Active CN102909676B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210204008.0A Active CN102909703B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210259921.0A Active CN102909678B (en) | 2011-08-06 | 2012-07-20 | Power tool |
| CN201210252591.2A Active CN102909677B (en) | 2011-08-06 | 2012-07-20 | Power tool |
| CN201410494661.4A Active CN104385206B (en) | 2011-08-06 | 2012-07-20 | Power tool and the method for operating for this power tool |
| CN201410493616.7A Active CN104385205B (en) | 2011-08-06 | 2012-07-20 | Power tool and for the method for operating of this power tool |
| CN201510185839.1A Active CN104801744B (en) | 2011-08-06 | 2012-07-20 | Power tool and the operating method for the power tool |
| CN201410494279.3A Active CN104476472B (en) | 2011-08-06 | 2012-07-20 | Power tool and the method for operating for this power tool |
| CN201210259922.5A Active CN102909679B (en) | 2011-08-06 | 2012-07-20 | Power tool and operation method for power tool |
Family Applications Before (14)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210166388.3A Active CN102909710B (en) | 2011-08-06 | 2012-05-25 | Power tool |
| CN201210166387.9A Active CN102909709B (en) | 2011-08-06 | 2012-05-25 | Power tool |
| CN201220290596XU Expired - Lifetime CN202702201U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210204007.6A Active CN102909702B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210203955.8A Active CN102909701B (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN2012202905809U Expired - Lifetime CN202702200U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201220290564XU Expired - Fee Related CN202702198U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN2012202905781U Expired - Fee Related CN202702199U (en) | 2011-08-06 | 2012-06-20 | Power tool |
| CN201210204006.1A Active CN102909676B (en) | 2011-08-06 | 2012-06-20 | Power tool |
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| CN201210252591.2A Active CN102909677B (en) | 2011-08-06 | 2012-07-20 | Power tool |
| CN201410494661.4A Active CN104385206B (en) | 2011-08-06 | 2012-07-20 | Power tool and the method for operating for this power tool |
| CN201410493616.7A Active CN104385205B (en) | 2011-08-06 | 2012-07-20 | Power tool and for the method for operating of this power tool |
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| CN201210259922.5A Active CN102909679B (en) | 2011-08-06 | 2012-07-20 | Power tool and operation method for power tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104385206B (en) | 2016-02-17 |
| CN102909679A (en) | 2013-02-06 |
| CN102909677B (en) | 2016-03-30 |
| CN104476472B (en) | 2016-08-24 |
| CN102909702A (en) | 2013-02-06 |
| CN102909677A (en) | 2013-02-06 |
| CN102909676B (en) | 2015-04-22 |
| CN102909709B (en) | 2015-02-04 |
| CN102909678A (en) | 2013-02-06 |
| CN102909710A (en) | 2013-02-06 |
| CN104801744A (en) | 2015-07-29 |
| CN102909703A (en) | 2013-02-06 |
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| CN202702200U (en) | 2013-01-30 |
| CN104385205B (en) | 2016-05-18 |
| CN202702201U (en) | 2013-01-30 |
| CN102909703B (en) | 2016-05-18 |
| CN104385205A (en) | 2015-03-04 |
| CN102909701A (en) | 2013-02-06 |
| CN102909701B (en) | 2015-12-30 |
| CN102909678B (en) | 2015-04-22 |
| CN102909702B (en) | 2015-08-19 |
| CN202702199U (en) | 2013-01-30 |
| CN202702198U (en) | 2013-01-30 |
| CN104385206A (en) | 2015-03-04 |
| CN102909709A (en) | 2013-02-06 |
| CN102909676A (en) | 2013-02-06 |
| CN104476472A (en) | 2015-04-01 |
| CN102909679B (en) | 2015-04-22 |
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