CN105729411B - Hand-held tool - Google Patents

Hand-held tool Download PDF

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Publication number
CN105729411B
CN105729411B CN201610216663.6A CN201610216663A CN105729411B CN 105729411 B CN105729411 B CN 105729411B CN 201610216663 A CN201610216663 A CN 201610216663A CN 105729411 B CN105729411 B CN 105729411B
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CN
China
Prior art keywords
work head
hand
held tool
support mechanism
connector
Prior art date
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Application number
CN201610216663.6A
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Chinese (zh)
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CN105729411A (en
Inventor
张士松
钟红风
马纯
马一纯
徐静涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Positec Power Tools Suzhou Co Ltd
Original Assignee
Positec Power Tools Suzhou Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Priority to CN201610216663.6A priority Critical patent/CN105729411B/en
Priority claimed from CN201310006329.4A external-priority patent/CN103909501B/en
Publication of CN105729411A publication Critical patent/CN105729411A/en
Application granted granted Critical
Publication of CN105729411B publication Critical patent/CN105729411B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F3/00Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Abstract

The present invention relates to a kind of hand-held tool, including:Casing;Output shaft, with the axially arranged accepting hole for accommodating work head;Work head support mechanism, including for housing several collecting storehouses of work head;Connector, can house storehouse and make to be housed in axial movement between the operating position of work head in the collecting storehouse and output shaft mating and the off-position for exiting the collecting storehouse passing through one of;Operating parts, for controlling connector to be axially moved;Automatic switching control equipment, motion in response to operating parts and the position to the head support mechanism that works are adjusted;Mode selector, operationally makes automatic switching control equipment selection be in following one of which pattern:Sequential adjustment pattern, automatic switching control equipment driving work head support mechanism is moved in one direction makes different collecting storehouses corresponding with accepting hole;Reciprocal shaping modes, two in several collecting storehouses of automatic switching control equipment driving work head support mechanism house storehouses and moved back and forth respectively between position corresponding with accepting hole.

Description

Hand-held tool
The application is entitled " hand-held tool ", Application No. filed in 8 days January in 2013 of applicant 201310006329.4 Chinese invention patent application divisional application.
Technical field
The present invention relates to storage and the quick-replaceable rifle of a kind of hand-held tool, more particularly to a kind of achievable work head Bore class hand-held tool.
Background technology
In existing drill gun class hand-held 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, different work heads, that is, screwdriver bit are changed according to the difference of screw specification, i.e., Originally the 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, loaded down with trivial details a, job on the other hand removed that more changes jobs on the one hand is caused 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 due to that the inherent defect of 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 using as the instrument of specialty in the industry.
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, which includes one, can house the multi-knife-head runner cylinder of 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 of remote tool body, can lead to Rotation multi-knife-head runner cylinder is crossed to select the cutter head needed.So it is accomplished by first operating the cylinder movement of multi-knife-head runner to make tool bit casing Cylinder is separated with runner cylinder, then rotating wheel cylinder, to select screwdriver bit, operating can be cumbersome.
If making Multi-tool head electric tool further improve, automatic switchover cutter head can be set on Multi-tool head electric tool Device, that is to say, that as long as operation is separated through the axle of multi-knife-head runner cylinder with multi-knife-head runner cylinder, multi-knife-head runner tin is just The position that next cutter head can be used can be automatically handed over.But the device of automatic switchover cutter head is merely able to drive multitool Head runner tin rotates in one direction, and being likely to result in the cutter head of one needs of selection needs to operate repeatedly, so that the ratio that operates It is cumbersome.
The content of the invention
It is an object of the invention to provide a kind of easy to operate hand-held tool.
The technical solution adopted for the present invention to solve the technical problems is:A kind of hand-held tool, including:Casing;Output Axle, with the axially arranged accepting hole for accommodating work head;Work head support mechanism, is at least partially arranged in casing, described Work head support mechanism includes several the collecting storehouses being set up in parallel for being used to house work head, the work head support mechanism energy Enough it is adjusted to one of collecting storehouse position corresponding with the accepting hole;Connector, is arranged in casing, the connector Can be in the working position being coupled through a work head for making to be housed in the collecting storehouse in several collecting storehouses with output shaft It is axially moved between the off-position put and exited one in several collecting storehouses and separated with the collecting storehouse;Operating parts, Being arranged on the casing is used to control the connector to be axially moved;Automatic switching control equipment, in response to the fortune of the operating parts Dynamic and to the head support mechanism that works position is adjusted;The hand-held tool also includes mode selector, the pattern Selection device operationally makes automatic switching control equipment selection be in following one of which pattern:Sequential adjustment pattern, it is described automatic Switching device driving work head support mechanism is moved in one direction makes different collecting storehouses corresponding with accepting hole;Reciprocal regulation mould Formula, the automatic switching control equipment driving work head support mechanism several collecting storehouses in two house storehouses respectively with accepting hole Moved back and forth between corresponding position.
It is preferred that, mode selector includes the model selection button being arranged on operating parts, and the model selection button can Rotate to select different operator schemes relative to operating parts.
It is preferred that, the model selection button and the operating parts alternative one are provided with least two grooves, the pattern Another of both selection button and the operating parts are provided with keeper, and the keeper may be selected and different engagements So as to which the model selection button to be maintained to the position of correspondence different mode.
It is preferred that, the work head support mechanism has the rotation axis parallel to output shaft axial direction, the sequential adjustment Pattern includes the first sequential adjustment pattern for being moved clockwise around rotation axis of the work head support mechanism and around rotation Second sequential adjustment pattern of axis counterclockwise motion.
It is preferred that, the automatic switching control equipment includes the movement locus selection device being connected on operating parts, the pattern Selection device is connected with movement locus selection device and can limit or allow the motion of the movement locus selection device So that automatic switching control equipment is changed between sequential adjustment pattern or reciprocal shaping modes.
It is preferred that, the operating parts is provided with chute, and the automatic switching control equipment also includes being used to drive work head support The sliding pin of mechanism kinematic, the sliding pin can be moved along the first track or the second track in chute, in sequential adjustment mould Under formula, the sliding pin is selected one under the guide effect of movement locus selection device and transported along the first track or the second track It is dynamic;Under reciprocal shaping modes, the sliding pin under the guide effect of movement locus selection device in turn along the first track and Move the second track.
It is preferred that, the movement locus selection device includes the guide plate being arranged in chute, and the guide plate pivots peace Loaded on operating parts, the mode selector includes the locating part coordinated with guide plate, under sequential adjustment pattern, the limit Position part restricted guidance plate rotation;Under reciprocal shaping modes, the locating part allows guide plate to rotate.
It is preferred that, the mode selector includes the model selection button being pivotally mounted on operating parts, the locating part Rotation axis off-center relative to model selection button is set.
The present invention solves another technical scheme that is used of its technical problem:A kind of hand-held tool, including:Machine Shell;Output shaft, with the axially arranged accepting hole for accommodating work head;Work head support mechanism, is at least partially arranged at casing Interior, the work head support mechanism includes several the collecting storehouses being set up in parallel for being used to house work head, the work head branch Support mechanism can be adjusted to one of collecting storehouse position corresponding with the accepting hole;Connector, is arranged in casing, institute Stating connector can be such that the work head being housed in the collecting storehouse is coupled with output shaft through one in several collecting storehouses Operating position and exit several and house and be axially moved between one in storehouses and the off-position that is separated with the collecting storehouse; Operating parts, being arranged on the casing is used to control the connector to be axially moved;Automatic switching control equipment, in response to the operation The motion of part and to work head support mechanism position be adjusted;The hand-held tool also includes mode selector, institute Stating mode selector operationally makes automatic switching control equipment selection be in following one of which pattern:Positive shaping modes, institute Stating automatic switching control equipment driving work head support mechanism and moving in the first direction makes different collecting storehouses corresponding with accepting hole;Reversely Shaping modes, the automatic switching control equipment driving work head support mechanism along moved in the opposite direction from first party make it is different House storehouse corresponding with accepting hole.
It is preferred that, mode selector includes the model selection button being arranged on operating parts, and the model selection button can Rotate to select different operator schemes relative to operating parts.
It is preferred that, the model selection button and the operating parts alternative one are provided with least two grooves, the pattern Another of both selection button and the operating parts are provided with keeper, and the keeper may be selected and different engagements So as to which the model selection button to be maintained to the position of correspondence different mode.
It is preferred that, the work head support mechanism has the rotation axis parallel to output shaft axial direction, the work head branch Support mechanism can direction be rotated clockwise or counter-clockwise around its rotation axis.
It is preferred that, the automatic switching control equipment includes the movement locus selection device being connected on operating parts, the pattern Selection device is connected with movement locus selection device and can limit the movement locus selection device along two opposite sides Move and automatic switching control equipment is changed between positive shaping modes or reverse shaping modes in a direction into motion.
It is preferred that, the operating parts is provided with chute, and the automatic switching control equipment also includes being used to drive work head support The sliding pin of mechanism kinematic, the sliding pin can be moved along the first track or the second track in chute, and mould is adjusted in forward direction Under formula, the sliding pin is slided in the presence of movement locus selection device along the first track;It is described under reverse shaping modes Sliding pin is slided in the presence of movement locus selection device along the second track.
It is preferred that, the movement locus selection device includes the guide plate being arranged in chute, and the guide plate pivots peace Loaded on operating parts, the mode selector includes the locating part coordinated with guide plate, under positive shaping modes, the limit Position part restricted guidance plate, which rotates, causes guide plate to be oriented to sliding pin and slided along the first track;Under reverse shaping modes, the limit Position part restricted guidance plate, which rotates, causes guide plate to be oriented to sliding pin and slided along the second track.
It is preferred that, the mode selector includes the model selection button being pivotally mounted on operating parts, the locating part Rotation axis off-center relative to model selection button is set.
It is preferred that, the hand-held tool also includes:Motor, is arranged in casing, and outputting rotary power;Driver Structure, is arranged between motor and output shaft and the rotary power that motor is exported can be passed into output shaft.
Compared with prior art, the beneficial effects of the invention are as follows:The hand-held tool of the present invention works without manual toggle Head support mechanism selects work head, need to only operate connector to leave work head support mechanism and the automatic of work head can be achieved Quick-replaceable, and by operator scheme selection device solve before automatically switch directions single the problem of, to user select Space.User can select different switching modes, including positive, reverse and reciprocal three kinds of switch modes according to demand, carry High operating efficiency, while the process of switch operating head is accurately and reliably.
Brief description of the drawings
Fig. 1 is sectional view when hand-held tool in currently preferred first embodiment is in running order.
Fig. 2 is the part isometric exploded view of hand-held tool in Fig. 1.
Fig. 3 is sectional view of the hand-held tool along line A-A in Fig. 1.
Fig. 4 is sectional view of the hand-held tool along line B-B in Fig. 3.
Fig. 5 is schematic perspective view when hand-held tool is in running order.
Fig. 6 is the upward view of slip lid part when hand-held tool is in running order.
Fig. 7 is the sectional view when connecting shaft of hand-held tool is unlocked.
Fig. 8 is the upward view of the slip lid part when connecting shaft of hand-held tool is unlocked.
Fig. 9 be hand-held tool connecting shaft be in release conditions when sectional view.
Figure 10 be hand-held tool connecting shaft be in release conditions when slip lid part upward view.
Figure 11 be hand-held tool storage folder position be conditioned after sectional view.
Figure 12 is that the position of the storage folder of hand-held tool is conditioned the upward view of rear slip lid part.
Figure 13 is sectional view of the hand-held tool along line C-C in Figure 11.
Figure 14 be hand-held tool storage folder position be conditioned after schematic perspective view.
Figure 15 be hand-held tool connecting shaft from release conditions return to operating position when and controlling organization reset before cut open View.
Figure 16 be hand-held tool connecting shaft from release conditions return to operating position when and controlling organization reset before cunning The upward view of cover.
Figure 17 is sectional view when hand-held tool in currently preferred second embodiment is in running order.
Figure 18 is the top view of the slip lid of hand-held tool in Figure 17.
Figure 19 is the part isometric exploded view of hand-held tool in Figure 18.
Figure 20 is the upward view of the slip lid of the hand-held tool in Figure 17, the positive regulation mould of now model selection button selection Formula.
Figure 21 is that the storing for hand-held tool in Figure 17 presss from both sides the schematic diagram in positive shaping modes.
Figure 22 is similar with Figure 20, and now model selection button selects reverse shaping modes.
Figure 23 is that the storing for hand-held tool in Figure 22 presss from both sides the schematic diagram in reverse shaping modes.
Figure 24 is similar with Figure 20, and now model selection button selects shaping modes repeatedly, and wherein sliding pin first slides into the first chute.
Figure 25 is that the storing for hand-held tool in Figure 24 presss from both sides the schematic diagram in shaping modes repeatedly, wherein storing double-layered quilt Along forward drive to the axial corresponding position of next collecting storehouse and accepting hole.
Figure 26 is similar with Figure 20, and now model selection button selects shaping modes repeatedly, and wherein sliding pin slides into the second chute again.
Figure 27 is that the storing for hand-held tool in Figure 26 presss from both sides the schematic diagram in shaping modes repeatedly, wherein storing double-layered quilt Storehouse and accepting hole axially corresponding position are housed along being driven inversely to one.
Wherein,
1. the transmission mechanism of 2. motor of casing 3.
4. the button switch of 6. battery of output shaft 7.
9. the first fore shell of 11. handle 13. of work
15. the motor shaft of 16. stop block of guide groove 21.
22. the planetary gear reducing mechanism of 30. pinion gear mechanism of gear-box 31.
40. the fixed block of 41. accepting hole of axle sleeve 50.
51. storage 53. slip lids of folder of connector 52.
55. the locking piece of ratchet of 60. controlling organization 61.
62. the torsion spring of 63. torsion spring of support base 65.
66. stop the oscillating deck 72 of post 71., 72a. chutes
74. the bearing pin of 81. limited block of guide plate 82.
83. the cam pin of 171. model selection button of torsion spring 172.
The Location resilient piece of 173. flat pin, 174. pin 175.
The arched member of 221. dividing plate, 223. toothed wheel box cover plate 225.
The second gear of 226. supporting plate, 301. first gear 302.
The magnet 521. of 303. the 3rd gear 511. houses storehouse
The locking groove of 522. locating slot, 531. guide rail 535. first
The projection of 536. second locking groove, 538. solution lock section 551. first
The chute of 552. second projection, 553. flexure strip 701. first
The sliding pin of 702. second chute, 703. middle part chute 711.
The switching part of 712. shift fork, 713. finger 721.
The hypotenuse of 722. reset portion, 723. straight flange 724.
The stopper section of 725. baffle plate, 1711. locating slot 2261. first
2262. second stopper sections 2263. perforation, 2264. stage clips
Embodiment
In the preferred first embodiment of hand-held tool of the present invention, hand-held tool is powered screwdriver, according to dynamic The difference in power source can be divided into pneumatic screw driver, surge screwdriver and electric screw driver, also have direct current in electric screw driver and exchange Point, present embodiment is 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, connection Part 51, work head support mechanism and output shaft 4.Casing 1 is closed up by symmetrical two half shells by screw (not shown) Assemble, it has horizontal component and the part of the handle set in obtuse angle with horizontal component 11, currently preferred angle exists Between 100 degree to 130 degree, such gripping handle 11 can be pleasant when operating.Opened on the top of the part of handle 11 provided with button 7 are closed, battery 6 is fixed on the rear portion of the part of handle 11 of casing 1, the horizontal component for being housed in casing 1 is fixed in the part of transmission mechanism 3 It is interior.As preferred embodiment, the battery 6 can be lithium ion battery.It should be noted that described lithium-ion electric here Pond is the general name for the rechargeable battery that negative material is elemental lithium, and according to the difference of positive electrode, it may make up many systems, such as " lithium manganese " battery, " lithium iron " battery etc..In the present embodiment, lithium ion battery is the lithium that a section rated voltage is 3.6V (volt) Ion battery.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 using 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 connector 51, and is transported the rotation of motor 2 by connector 51 It is dynamic to pass to output shaft 4.Wherein storage folder 52 is used to store different work heads, and work head here refers mainly to electric screw driver Conventional crosspoint tip screwdriver head, flat blade screwdriver are first-class, by operating connector to move axially through storage folder or leaving storage folder, so that it may With the different work head of the quick-replaceable when electric screw driver is tightened or unclamps different screws.
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 positioned 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, by planetary gear reducing mechanism 31 and pinion gear mechanism 30 it Between set dividing plate 221 the two is separated, and gear-box 22 and storage folder 52 between set toothed wheel box cover plate 223, will can so pass Motivation structure 3 is separated with storage folder 52, i.e. transmission mechanism 3 and storage folder 52 is separate.Pinion gear mechanism 30 includes and row Star gear reduction 31 can transmit moment of torsion connection first gear 301, the 3rd gear 303 being connected with connector 51 and with The second gear 302 of the gear 303 of first gear 301 and the 3rd engagement, second gear 302 transmits the rotation of first gear 301 To the 3rd gear 303, the two ends of each gear are supported by axle sleeve.The middle part of dividing plate 221 is provided with for first gear 301 The hole that axle is passed through, the end face of dividing plate 221 is provided with the groove for mounting sleeve, and the rear axle housing of support pinion gear mechanism 30 is fixed on On dividing plate 221, front shaft sleeve is fixed on toothed wheel box cover plate 223, and toothed wheel box cover plate 223 can pass through screw, buckle with gear-box 22 Etc. being fixedly linked, in this way, pinion gear mechanism 30 and planetary gear reducing mechanism 31 can be separated, while again can be by both Closing, prevents dust, powder etc. from entering inside transmission mechanism 3, can also prevent the leakage of lubricating oil.In addition, setting three teeth Wheel is intended merely to make the inner space of instrument compacter, attractive in appearance outside without influenceing.It is of course also possible to set as needed Two gears are set to, one is connected with planetary gear reducing mechanism 31, and another is connected with connector 51.In addition, transmission mechanism 3 Above-described form is not limited to, transmission mechanism 3 can only include planetary gear reducing mechanism 31, or only include small tooth Take turns mechanism 30, or other rotary motion transmission mechanisms, such as ratchet mechanism, turbine mechanism.Wherein planetary gear speed-reduction Mechanism 31 has three-level deceleration system, and the extension of motor shaft 21 is engaged with planetary gear reducing mechanism 31, planetary gear reducing mechanism 31 communicate rotational motion to pinion gear mechanism 30, and pinion gear mechanism 30 rotates with follower link 51, and connector 51 drives defeated again Shaft rotates.It is finally defeated by output shaft 4 by planetary gear reducing mechanism 31, pinion gear mechanism 30 when so motor 2 is run Go out.Make it can thus be seen that the driving-chain in present embodiment is motor-transmission mechanism-connector-output shaft, i.e. connector For a part for driving-chain.In addition, reducing gear is made up of to obtain three stage planetary reduction and the two poles of the earth parallel axes deceleration system Desired output speed, in other embodiments, depending on the rotating speed of required output, reducing gear can only include secondary planet Deceleration system, or other deceleration systems.
Currently preferred work head support mechanism is slidably to be connected with slip lid 53, slip lid on storage folder 52, casing 1 53 can move axially with follower link 51.Casing 1 includes the fore shell 13 for being connected to its front end, the part collecting of storage folder 52 In fore shell 13, another part covers moving and expose with slip lid 53 by slip lid 53.Currently preferred storage presss from both sides 52 Cylindrical shape, convenient rotation, occupies little space, naturally it is also possible to set squarely or triangle etc. simultaneously.Electronic When screwdriver works, slip lid 53 is abutted with fore shell 13, so storage folder 52 and connector 51 can be all closed.Tooth The position of correspondence connector 51, which is provided with the hole passed through for connector 51, gear-box 22, on wheel cover plate 223 surrounds connector 51 Axis is extended with arched member 225, and arched member 225 can be wholely set with gear-box 22, can also be provided separately, by setting arch Part 225 can be partially enclosed by connector 51, electric screw driver more changed jobs head 9 when, i.e., slip lid 53 is moved Move the position of rearmost end and connector 51 will not also be exposed, can so prevent the inside of the entering tools such as dust, powder. Moreover, toothed wheel box cover plate 223 extends to the end face of arched member 225, so that by the integrally closed of transmission mechanism 3 together vertically. In the course of the work, storage folder 52 can be closed by slip lid 53, so as to prevent dust from entering, need the head that more changes jobs When, storage folder 52, the different work head of convenient selection can be exposed by removing slip lid 53.
Output shaft 4 is form of sleeve, and generally output shaft sets hexagonal hole, in it can installment work first 9, work head Section is the hexagon matched with hexagonal hole, and connector 51 of the invention is also to be provided with six sides in hexagon, the 3rd gear 303 Hole, for connector 51 to be coupled and communicated rotational motion to connector 51, the such insertion of connector 51 output shaft 4 being capable of band Dynamic output shaft 4 rotates, and then drives first 9 rotation of work by output shaft 4, can so use the work first 9, Er Qiewu of standard The hole for housing work first 9 need to be opened up on connector 51, it is to avoid the weight and volume of the excessive increase complete machine of the diameter of connector 51.It is defeated Shaft 4 is supported in the axial aperture 131 of fore shell 13 by an axle sleeve 40, and axle sleeve 40 provides radial support to output shaft 4, certainly The radial support of output shaft 4 can also be realized by bearing.So, directly drive first 9 rotation of work for output shaft, shorten The distance of moment of torsion transmission, so that the use of instrument is relatively reliable.It is above-described to be started building for connector by output shaft indirect belt Make the mode of head rotation, still, those skilled in the art are readily conceivable that other transmission means to substitute, such as connector is straight Tape splicing is started building to make head rotation, i.e. connector and is directly connected with work head in the way of it can transmit moment of torsion, or output shaft is by gear Direct drive, and connector is only used for releasing work head and drives work head to return to storage folder.
The front end of connector 51 be provided with magnet 511, for adsorbing work first 9, when select good berth it is first 9 when, operable cunning Lid 53 is with follower link 51 through the collecting storehouse 521 for housing the work first 9, and the magnet 511 worked on first 9 connected piece 51 is inhaled It is attached, and collecting storehouse 521 is left under the promotion of connector 51, into output shaft 4.When work, connector 51 drives output Axle 4 rotates, and output shaft 4 drives first 9 rotation of work.
Electric screw driver needs work first 9 being axially pressed on screw or workpiece when being operated, so Work 9 be able to can be produced axially solid on the rear shifting of connector 51, connector 51 of the present invention by a reverse responsive to axial force Fixed is provided with a fixed block 50, and the rear end of connector 51 is rotatably against on fixed block 50, closed in the rear end of connector 51 The place of fixed block 50 is provided with the position-limit mechanism for preventing that connector 51 from retreating, and position-limit mechanism includes pivotable limited block 81, edge The pivotal orientation of limited block 81 biases the torsion spring 83 of limited block 81.Fixed block 50 is caught in one end of wherein limited block 81, and the other end leads to A bearing pin 82 is crossed on gear-box 22 or on casing 1, the axis of bearing pin 82 is perpendicular to the axis of connector 51, limited block 81 can rotate around bearing pin 82 in the range of certain angle.One end of torsion spring 83 is fixed on limited block 81, and the other end is against On gear-box 22 or on casing 1, the elastic force of torsion spring 83 makes limited block 81 be maintained at the position offseted with fixed block 50.It is such Position-limit mechanism 8 is preferably provided two, is distributed along the axisymmetrical of connector 51, can so keep stress balance, make connector 51 axial limiting is relatively reliable.
Slip lid 53 can be moved band follower link 51 by way of being connected with fixed block 50, when needing mobile link part 51 When, it can release the limitation moved to connector 51 by sliding slip lid 53.Fixed block 50 has hollow square, slip lid 53 inside is provided with locking piece 55, and locking piece 55 has the first projection 551 for stretching into the hollow bulb of fixed block 50, in electric screw driver Working condition, projection and the hollow rear side axially spaced-apart of fixed block 50 have apart from S, when slip lid 53 is slided backward, i.e., towards horse Direction up to 2 is slided, and has been slided after S, and the first projection 551 is axially abutted with the hollow rear side of fixed block 50, so that sliding Lid 53 drives fixed block 50, and then band follower link 51 is moved axially backward;In the state of the replaceable work head of electric screw driver, First projection 551 has apart from S with the hollow front side axially spaced-apart of fixed block 50, when the forward slip of slip lid 53, i.e., towards output shaft 4 Direction slide, slided after S, the hollow front side of the first projection 551 and fixed block 50 is axial to abut, so that slip lid 53 Driving fixed block 50, then band follower link 51 is moved axially forward.The inside of slip lid 53 is provided with the solution lock section matched with limited block 81 538, when slip lid 53 is moved rearwards by, solution lock section 538 and a contacts side surfaces of limited block 81, and limited block 81 is in solution lock section Overcome the elastic force of torsion spring 83 to act under 538 drive to rotate around bearing pin 82, until limited block 81 is disengaged with fixed block 50, it is fixed Block 50 is unlocked, so that limited block 81 is in the position for allowing connector 51 to be axially moved.Connector 51 continues to move axially, limit Position block 81 is stuck in the two ends of fixed block 50, now can be carried out the head that more changes jobs.It can thus be seen that being driven in slip lid 53 Elder generation sliding distance S is to release the limitation that limited block 81 is axially moved to connector 51 before connector 51 is moved, as long as therefore full apart from S The movement of sufficient slip lid 53 can release the locking that limited block 81 is axially moved to connector 51.It is sliding after work head is more finished changing Lid 53 is moved forward, and band follower link 51 and fixed block 50 are also moved forward, and solution lock section 538 is contacted simultaneously again with the side of limited block 81 Separated with the reach of slip lid 53, limited block 81 comes back to the position axially offseted with fixed block 50 in the presence of torsion spring 83 Put, when such electric screw driver work, output shaft 4 is stretched into the front end of connector 51, is located at the fixed block of the rear end of connector 51 50 are limited the axial limiting of block 81, and the axial movement of such connector 51 is limited, i.e., connector 51 can not be retreated, so that electronic The use of screwdriver is relatively reliable.
Certainly, slip lid 53 also has much with the mode that follower link 51 is moved, and can such as set and surround on connector 51 The annular groove in its outer week Monday, slip lid 53 is extend into annular groove by a pin or steel wire ring to be connected with connector 51, so both The rotation of connector 51 is not influenceed, nor affects on movement of the slip lid 53 with follower link 51.Either which kind of mode, its principle is all It is that slip lid first has one section of idle stroke, i.e., slip lid 53 is moved relative to casing 1 before this, and connector 51 is fixed relative to casing 1, so Band follower link 51 is moved slip lid 53 again afterwards.
Moreover, those skilled in the art by way of slip lid 53 is moved it can also be appreciated that without that can also realize releasing The locking that limited block 81 is axially moved to connector 51, such as sets the knob being connected with limited block 81 outside in casing 1, passes through rotation Knob drives limited block 81 to overcome spring force to rotate or mobile;Or the toggle being connected with limited block 81 is set outside in casing 1 Or button, by promoting toggle or pressing button also to drive limited block 81 to overcome spring force rotation or movement etc. Deng can realize and release the locking that is axially moved to connector 51 of limited block 81.
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 It can be blocked during position by the lock on casing 1, working condition can be automatically returned under elastic force when slip lid 53 is released Position.
The edge of slip lid 53 is provided with guide rail 531, and corresponding casing 1 is provided with guide groove 15, and slip lid 53 passes through its guide rail 531 It can be slid axially in guide groove 15 relative to casing 1.It is of course also possible to be that guide groove is set on slip lid 53, casing 1 The upper mode for setting guide rail causes slip lid to move.
Storage folder 52 is rotatably supported between toothed wheel box cover plate 223 and output shaft 4, along its circumference side on storage folder 52 To multiple collecting storehouses 521 are evenly distributed with, housing storehouse 521, axially a part is closed along storage folder 52, and a part of excircle is opened wide, So facilitate operator select work it is first 9 when can be from unlimited part it is easy to see that the shape on first 9 head of work, so that soon The work first 9 that speed selection needs.Certainly, those skilled in the art it is readily conceivable that house storehouse 521 can also be it is totally enclosed, Only need to be identified in corresponding position, or directly will storage folder 52 make it is transparent, can conveniently recognize.In addition, can It is flexibly positioned to be carried out between storage folder 52 and toothed wheel box cover plate 223, i.e., the end of toothed wheel box cover plate 223 is faced in storage folder 52 The position of correspondence work first 9 sets locating slot 522 on face, and locating slot 522 is corresponding with housing storehouse 521, is set on toothed wheel box cover plate 223 Put the steel cap compressed by spring, or shell fragment, then, storage folder 52 often turns over a first 9 steel cap of work or shell fragment and can all sent out Go out to fall into the voice prompt of locating slot 522, thus operator selection work it is first 9 when be avoided that storage folder 52 rotation angles and company Fitting 51 staggers.Foregoing is to select different work heads by way of storing the rotation of folder 52, naturally it is also possible to passed through The mode of intermediate straight line motion is stored, such as radial direction of the head along storage folder that work is arranged side by side, and edge is accomplished by during selection work head Radial push storage folder.Storage folder 52 is axial restraint in the other preferred embodiment of the present invention, passes through the axle of connector 51 Work head is driven to be operated into output shaft to motion, naturally it is also possible to be arranged to connector axial restraint, pass through storage Folder axial movement rotates or moved radially in the way of selecting work head again, so as to can also realize without removing work head just The quick-replaceable of work head can be realized.
It is provided with and automatically switches on DC electric screwdriver in the preferred first embodiment of hand-held tool of the present invention The automatic switching control equipment of work head, that is to say, that as long as operation slip lid 53 leaves collecting storehouse 521 with follower link 51, release to depositing The limitation of the motion of storage folder 52, storage folder 52 is automatically moved to the collecting of next work head in the presence of automatic switching control equipment The axial corresponding position of storehouse and output shaft 4, without operator, manual rotation storage folder 52 selects work head again.
Referring to figs. 1 to shown in Figure 16, automatic switching control equipment includes the controlling organization 60 for being used to drive the motion of storage folder 52, control Mechanism 60 processed includes the ratchet 61 being flexibly connected with storage folder 52 and the support base 62 for installing ratchet 61, and one end of ratchet 61 can Rotation is arranged on support base 62, and the other end can be stuck in the locating slot 522 of storage folder 52, ratchet 61 and support base 62 it Between set torsion spring 63, ratchet 61 by torsion spring 63 partial pressure keep be stuck in locating slot 522.Wherein, support base 62 can What is rotated is supported on toothed wheel box cover plate 223, in this way, ratchet 61 can drive when support base 62 rotates with pawl 61 Storage folder 52 rotates together.In order that support base 62 can be supported reliably, can be between storage folder 52 and controlling organization 60 Supporting plate 226 is set, and ratchet 61 sets l-shaped, can cross supporting plate 226 and be stuck in locating slot 522, and support base 62 Rotary shaft can also one end be supported on toothed wheel box cover plate 223, the other end is supported in supporting plate 226.The correspondence of supporting plate 226 connects The position of fitting 51 is provided with perforation 2263, is passed through for connector 51, does not influence the axial movement of connector 51 so.
In the present embodiment, storage folder 52 is driven to move by the rotation of drive control mechanism 60, drive control mechanism 60 The first way of rotation drives for accumulation of energy, and automatic switching control equipment also includes the Storage Unit being connected with controlling organization 60, when even When fitting 51 is moved to operating position, the energy of Storage Unit is stored, when connector 51 is moved to off-position, accumulation of energy list The energy of member is released drives storage folder 52 to move with drive control mechanism 60.It is preferred that Storage Unit be torsion spring 65, be arranged on Between controlling organization 60 and supporting plate 226, one end of torsion spring 65 is fixed in supporting plate 226, and the other end is connected in controlling organization 60 Support base 62 on, connector 51 be in operating position when, torsion spring 65 be in compression state, once connector 51 leaves and deposited The collecting storehouse 521 of storage folder 52, controlling organization 60 can drive storage folder 52 to rotate in the presence of torsion spring 65.
The second way that drive control mechanism 60 rotates is connected for actuated by cams, i.e. controlling organization 60 with slip lid 53, sliding The control connector 51 of lid 53 is moved to behind off-position, and the exercisable drive control mechanism 60 of slip lid 53 drives storage folder 52 to transport It is dynamic.Come drive control mechanism 60 preferably through the movement of slip lid 53 to rotate, slip lid 53 leaves storage folder 52 with follower link 51 Collecting storehouse 521 after, slip lid 53 continues to move relative to casing 1, and simultaneously drive controlling organization 60 rotate, i.e., by turning to machine Structure by the transform linear motion of slip lid 53 be controlling organization 60 rotary motion.What steering mechanism commonly used has pinion and-rack, snail Pole crank stylus pin formula, circulating ball-rack tooth fan formula, circulation ball crank stylus pin formula, worm screw guide wheel type, cam-type, crank connecting link Formula etc..
Preferred steering mechanism is the motion conversion being connected between controlling organization 60 and slip lid 53 in automatic switching control equipment Mechanism, movement conversion mechanism is used for the rotary motion for controlling organization 60 by the transform linear motion of slip lid 53.Move interpreter Structure includes one relative to the oscillating deck 71 that casing 1 is pivoted, and the middle part of oscillating deck 71 is provided with rotary shaft, and rotary shaft can be arranged on gear On the arched member 225 of case 22.Oscillating deck 71 is provided with sliding pin 711, other end formation shift fork 712 relative to one end of rotary shaft.It is sliding The inside top of lid 53 is provided with the chute 72 coordinated with sliding pin 711, and chute 72 is along horizontally arranged generally parallel four side The shape of shape, two straight flanges parallel to connector 51 axial direction, two hypotenuses formed respectively chute 72 switching part 721 and reset Portion 722, sliding pin 711 is with the boundary slip for being moved along chute 72 of slip lid 53, often by a switching part 721 or reset Portion 722, one end of the formation shift fork 712 of oscillating deck 71 is swung around rotary shaft.The shift fork 712 of oscillating deck 71 directly with control The support base 62 of mechanism 60 is connected, so just by rotation of the transform linear motion of slip lid 53 for controlling organization 60.
Further, rotary motion can be transmitted by gear mechanism between oscillating deck 71 and controlling organization 60.Swing The shift fork 712 of plate 71 connects the first travelling gear 73, and the first travelling gear 73 may be supported on toothed wheel box cover plate 223 and supporting plate Between 226, the lug 732 that the first travelling gear 73 has a radially protruding is connected with shift fork 712, and the support of controlling organization 60 The second travelling gear 623 is formed on seat 62, the first travelling gear 73 and the engagement of the second travelling gear 623 can enclose shift fork 712 The rotation that swing around rotary shaft is converted into the first travelling gear 73 then passes to the second travelling gear 623 again, so as to support The band pawl 61 of seat 62 rotates.As long as because controlling organization 60 drives storage to press from both sides 52 angles for turning over a work head, such as Six work heads are set, and storage folder turns over 60 degree, so the first travelling gear 73 and the second travelling gear 623 are without 360 degree of rotations Turn, need to only be set according to the anglec of rotation of storage folder 52, therefore the first travelling gear 73 and the second travelling gear 623 can be set Into sector gear, the teeth portion and lug 732 of such first travelling gear 73 could be arranged to diametrically, the second travelling gear 623 gear and the part of installation ratchet 61 can also diametrically, can so make compact conformation, saving material.
Certainly, the mode that controlling organization 60 is driven by accumulation of energy can also be other forms, such as in oscillating deck 71 and tooth Torsion spring is set between roller box 22, and one end of torsion spring is fixed on gear-box 22, and the other end is connected on oscillating deck 71, in connector 51 During in operating position, torsion spring is in the state of compression, once connector 51 leaves the collecting storehouse 521 of storage folder 52, oscillating deck 71 drive the first travelling gear 73 to rotate in the presence of torsion spring then drives support base 62 to rotate.Or in the first travelling gear Torsion spring is set between 73 and supporting plate 226 (or toothed wheel box cover plate 223), and one end of torsion spring is fixed on the first travelling gear 73, The other end is connected in supporting plate 226 (or toothed wheel box cover plate 223), can also so realize that controlling organization 60 is driven by accumulation of energy.By This, those skilled in the art are readily able to expect, as long as the pivot part in drive disk assembly sets torsion spring to realize control The accumulation of energy driving of mechanism 60 processed.
In addition, the control connector 51 of slip lid 53 is moved to behind off-position, slip lid 53 continues to move to that motion can be driven Switching mechanism drive control mechanism 60 rotates, and slip lid 53 can continue to move with follower link 51 herein, so be accomplished by The position-limit mechanisms such as steel wire gear or shell fragment are set to prevent first 9 connected piece 51 of work from taking out of between storage folder 52 and supporting plate 226 House storehouse 521.Currently preferred that stop block 16 is set on casing 1, slip lid 53 sets first along the axially spaced-apart of connector 51 The locking groove 536 of locking groove 535 and second, flexure strip 553 is set on locking piece 55, and flexure strip 551 is stuck in the first locking groove 535 Or second in locking groove 536, and flexure strip 553 deform after can cross the first locking groove 535 or the second locking groove 536, from And locking piece 55 can move relative to slip lid 53.Casing 1 is provided with slip lid stop block 16, and it is consolidated when connector 51 is moved axially Determine block 50 to be against on stop block 16 to be moved by limitation.And stopper slot 539 is offered on slip lid 53, locking piece 55 has card The second projection 552 in stopper slot 539, movable can be limited groove 539 of the slip lid 53 relative to locking piece 55 is limited, and is prevented On-slip lid 53 is excessively mobile.That is slip lid 53a moves an idle stroke, and the distance of such connector 51a movements is minimum, The compact conformation of instrument.That is slip lid band follower link together relative to chassis movement, then connector fix relative to casing and Slip lid is relative to chassis movement.
In the mode that controlling organization 60 is driven by accumulation of energy, as long as because being the collecting storehouse that connector 51 leaves storage folder 52 521, the energy of Storage Unit will be released, as long as that is, slip lid 53 is with follower link 51 to off-position, without slip lid 53 continue to move to.And the energy release of Storage Unit realizes the switching of work head, so the nothing of chute 72 on slip lid 53 Switching part 721, i.e. chute 72 need to be set to be arranged to the trapezoidal shape of straight flange.
Above is accumulation of energy driving and operation slip lid driving realize that controlling organization 60 drives the mode of the rotation of storage folder 52, below Introduce the reset of controlling organization 60.Mobile slip lid 53 returns back to operating position, connector 51 with follower link 51 from off-position Into next collecting storehouse 521, sliding pin 711 causes oscillating deck 71 encloses to rotate about under the guiding of the reset portion 722 of chute 72 Axle rotates, and oscillating deck 71 drives the first travelling gear 73 to rotate by shift fork 712, and the first travelling gear 73 drives support base 62 to revolve Turn, because connector 51 is stuck in storage folder 52, storage folder 52 is rotated by limitation, just band pawl 61 overcomes torsion spring to support base 62 63 elastic force is left out of locating slot 522, and ratchet 61 is rotated with support base 62 and fallen under the resilient force of torsion spring 63 In next locating slot 522, rotation of the controlling organization 60 relative to storage folder 52 is so just realized.
In order to prevent controlling organization 60 from rotating excessively, storage folder can be driven by correspondence controlling organization 60 in supporting plate 226 The terminal location of 52 rotations sets the first stopper section 2261, and correspondence controlling organization 60 is installed relative to the initial bit of the rotation of storage folder 52 The second stopper section 2262 is put, the rotation of controlling organization 60 is limited by the first stopper section 2261 and the second stopper section 2262, so as to protect Demonstrate,prove another work head when the drive storage of controlling organization 60 folder 52 of knowing clearly rotates to terminal location corresponding with the axial direction of output shaft 4, When the relative storage folder 52 of controlling organization 60 rotates to initial position, ratchet 61 will not cross locating slot 522.
In order that ratchet 61 can reliably drive the rotation of storage folder 52 while locating slot 522 can be exited readily, it is fixed The angle that along the circumferential first sides 5221 of storage folder 52 and second side 5222 to may be configured as inclination in the groove 522 of position different, It is preferred that first side 5221 is rectangular relative to the end face of storage folder 52, such ratchet 61 can reliably drive storage folder 52 to revolve Turn;Second side 5222 is at an acute angle relative to the end face of storage folder 52, and such ratchet 61 can easily exit fixed when resetting Position groove 522.Meanwhile, ratchet 61 can also be arranged to the shape matched with locating slot 522.In addition storage folder 52 is driven in ratchet 61 When moving to terminal location, ratchet 61 is located at the bottom of storage folder 52, so can be easily by storage folder 52 out of casing 1 Remove, to change another slack storage folder, so as to expand the use function of instrument.
The quick-replaceable process of DC electric screwdriver work in above-mentioned first embodiment will be made specifically below It is bright.
Referring to figs. 1 to shown in Fig. 6, electric screw driver is in running order, and now depression of push button switch 7 can carry out twisting spiral shell The work of nail.Reference picture 7 to shown in Fig. 8, when need to change a further type of work it is first 9 when, operation slip lid 53 is to motor 2 Direction displacement S, slip lid 53 releases locking of the limited block 81 to connector 51 by solution lock section 538, and sliding pin 711 is along cunning The straight flange of groove 72 is slided, and locking piece 55 on slip lid 53 is contacted with the fixed block 50 on connector 51, and now slip lid 53 being capable of band Follower link 51 is mobile in the same direction therewith.
Next, reference picture 9 arrives Figure 10, slip lid 53 is moved in the same direction therewith by locking piece 55 band follower link 51 Connector 51 drives work first 9 to return to collecting storehouse with housing the off-position that storehouse 521 is separated, connector 51 by magnet 511 521, straight flange of the sliding pin 711 along chute 72 slides into the critical localisation of switching part 721.Reference picture 11 arrives Figure 14, continues to electricity The direction movement slip lid 53 of machine 2, connector 51 can not be continued to move to by the limitation of stop block 16, and locking piece 55 overcomes flexure strip 553 Elastic force cross the first locking groove 535 until the second projection that flexure strip 553 is fallen on the second locking groove 536, locking piece 55 552 are limited by the stopper slot 539 on slip lid 53, therefore slip lid 53 is continued to move axially by limitation, and sliding pin 711 is along chute 72 switching part 721 slides and oscillating deck 71 is rotated certain angle around its rotary shaft under the guiding of switching part 721, together When, the shift fork 712 of oscillating deck 71 drives the first travelling gear 73 to rotate, and the first travelling gear 73 drives the as support base 62 Two travelling gears 623 rotate, and such support base 62 rotates with pawl 61, and ratchet 61 drives storage folder 52 to turn over certain angle Degree, another work head with storage folder 52 rotation be brought to the corresponding position of output shaft 4, this completes work Head is switched fast, moreover, fall into the flexibly positioned sound of the second locking groove 536 by the flexure strip 553 on locking piece 55, Operator can be easy to judge the switching that storage folder 52 has completed work head.
With continued reference to Figure 15 to Figure 16, resetted to the direction movement slip lid 53 of output shaft 4, slip lid 53 with follower link 51 to The direction movement of output shaft 4, the one end of connector 51 provided with magnet 511 connects with another first 9 afterbody that works automatically switched Touch and adsorb the work first 9, connector 51 drives work first 9 to enter output shaft 4, until work first 9 is revealed from the front end of output shaft 4 Go out, the fixed block 50 on connector 51 is stuck on arched member 225, now sliding pin 711 slides into straight flange and reset along chute 72 The critical part in portion 722.The flexure strip 553 continued on the direction movement slip lid 53 to output shaft 4, locking piece 55 overcomes elastic masterpiece With crossing the second locking groove 536 until flexure strip 553 falls into the first locking groove 535, and reset portion of the sliding pin 711 along chute 72 722 slide and oscillating deck 71 is rotated certain angle around its rotary shaft under the guiding of reset portion 722, meanwhile, oscillating deck 71 shift fork 712 drives the first travelling gear 73 to rotate, and the first travelling gear 73 drives the second driving cog as support base 62 Wheel 623 rotates, and such support base 62 rotates with pawl 61, and now stores 52 connected pieces 51 of folder through being unable to rotation Turn, therefore ratchet 61 52 turns over certain angle relative to storage folder, falls into another locating slot 522, slip lid 53 be returned to The position that fore shell 13 is abutted, electric screw driver has been returned to the working condition shown in Fig. 1, and this completes controlling organization 60 Reset.If the work head selected above is not operator's needs, above step repeats progress, until from output shaft 4 The work head for needs exposed, or mobile slip lid 53 expose manual rotation storage after storage folder 52 and press from both sides 52 to select needs Work head.
The process operation that whole work head is changed is simple, quickly, for the user, can greatly improve work effect Rate.
Figure 17 to Figure 27 show second preferred of embodiment of hand-held tool of the present invention.Label and first is preferably in fact Apply a structure for identical part and function is identical with first preferred embodiment, here is omitted.Reference picture 17 arrives figure Shown in 20, in present embodiment, automatic switching control equipment includes the movement conversion mechanism being arranged between storage folder 52 and slip lid 53 And for driving the controlling organization 60 of the motion of storage folder 52, movement conversion mechanism for being by the transform linear motion of slip lid 53 The rotary motion of controlling organization 60, slip lid 53 is linearly moved through movement conversion mechanism driving storage folder 52 and rotated.Here fortune Manual converting mechanism includes the chute 72a being arranged on slip lid 53 and the oscillating deck 71 being pivotally connected on casing 1, oscillating deck 71 One end relative to rotary shaft is provided with sliding pin 711, other end formation shift fork 712.Shift fork 712 is connected with controlling organization 60, sliding pin 711 are arranged in chute 72a and can be slided in chute 72a.Chute 72a has straight along output shaft 4a axially arranged two Side 723 and the hypotenuse 724 being connected respectively with two straight flanges, the intersection of two hypotenuses 724 form oblique angle portion, and oblique angle portion is relative In two evaginations of straight flange 723 and towards motor 2, chute 72a middle part is provided with two baffle plates 725, and baffle plate 725 is roughly parallel to directly Side 723, the distance between two baffle plates 725 are substantially equal to the diameter of sliding pin 711, and sliding pin 711 can be between two baffle plates 725 The move in tracks of formation, the distance between two other baffle plate 725 and corresponding two straight flanges 723 are also substantially equal to sliding pin 711 diameter, the move in tracks that sliding pin 711 can also be formed between the corresponding straight flange 723 of baffle plate 725, two gears Chute 72a is divided into the first chute 701, the second chute 702 and the middle part chute between two baffle plates 725 by plate 725 703.Pivotally connected on slip lid 53 to have guide plate 74, guide plate 74 is located at the position away from hypotenuse 724, guide plate in chute 72a 74 be in substantially Y types, and the single head end of Y types guide plate 74 is towards hypotenuse 724, so when sliding pin 711 is slided into middle part chute 703 When being offseted with guide plate 74, sliding pin 711 can be oriented to the first chute 701 or the second chute 702 by guide plate 74.Certainly, originally Art personnel are readily able to expect, as long as the shape of guide plate 74, which is set, disclosure satisfy that sliding pin 711b moves along a straight line with leading Contacted to plate 74, sliding pin 711b can enter planned orbit under the guiding of guide plate 74, such as triangle, rhombus, heart, Falcate etc..
In present embodiment, hand-held tool also includes mode selector, is led by the control of operator scheme selection device To the position of plate 74, this makes it possible to control the forward direction that sliding pin 711 is constituted all along the first chute 701 and middle part chute 703 Move or take turns in the counter motion track that movement locus is moved or constituted all along the second chute 702 and middle part chute 703 Stream is moved along positive movement track and counter motion track.In this way, guide plate 74 just forms a movement locus selection dress Put, make sliding pin 711 that there is different movement locus by guide plate 74, that is to say, that guide plate 74 serves change sliding pin fortune The effect in dynamic direction.
Specifically, operator scheme selection device includes the model selection button 171 being rotatably mounted on slip lid 53, pattern One end of selection button 171 exposes slip lid 53 and a part forms lever, and the other end of model selection button 171 is fixedly connected with one Flat pin 173 provided with cam pin 172, flat pin 173 is fixedly installed togather through slip lid 53 with model selection button 171, Y types Guide plate 74 is arranged in chute 72a by a pin 174, and cam pin 172 is located between the double end end of Y types guide plate 74, from And flat pin 173 can be driven to rotate together therewith when model selection button 171 rotates, to cause cam pin 172 relative to Y types Guide plate 74 is in different positions.Model selection button 171 is selected provided with three locating slots 1711, locating slot 1711 along pattern Select and Location resilient piece 175 is installed on the circumferentially-spaced distribution of button 171, slip lid 53, model selection button 171 rotates so that different determine Position groove 1711 is engaged with Location resilient piece 175 so that model selection button 171 may remain in three fixations relative to slip lid 53 Position, meanwhile, cam pin 172 with the rotation of model selection button 171 also have relative to Y types guide plate 74 three it is different Position, i.e. cam pin 172 are located across the both sides of the perpendicular of output shaft axis, and cam pin 172 is double with Y types guide plate 74 A side in side end is offseted, and the limitation Y types of cam pin 172 guide plate 74 is rotated clockwise or counter-clockwise;Cam pin 172 and warp The perpendicular for crossing output shaft axis intersects, and cam pin 172 is located at the centre at the bilateral end of Y types guide plate 74, and cam pin 172 is permitted Perhaps Y types guide plate 74 is rotated clockwise or counter-clockwise.The above-mentioned pattern for the rotation process of model selection button 171, this area skill Art personnel, which are readily conceivable that to move forward and backward or move left and right by model selection button 171, can also realize control Y type guide plates 74 position, the motion of storage folder 52 in addition can also be linear motion.
Below by the specific operating process introduced and select button 171 to select storage 52 motor patterns of folder by operator scheme.
Reference picture 18 and Figure 20, rotary-mode selecting-button 171 make lever with the right side of slip lid 53 (from motor to output shaft Direction see) arrow correspondence, cam pin 172 is moved to the right side of slip lid 53 also with model selection button 171, and such Y types are oriented to The one side on right side offsets in single head end the second chute 702 of direction of plate 74, the bilateral end of cam pin 172 and Y types guide plate 74, this Sample Y types guide plate 74 can not now pull slip lid 53, sliding pin 711 is along middle part chute 703 relative to slip lid 53 to anticlockwise Linear motion offsets up to sliding pin 711 and Y types guide plate 74, because the single head end of Y types guide plate 74 is towards the second chute 702, Therefore slip lid 53 is pulled on so that sliding pin 711 is moved under the guiding of Y types guide plate 74 to the first chute 701, sliding pin 711 is relative Generate radial displacement in output shaft 4, oscillating deck 71 be driven to rotate so as to drive control mechanism 60 drive storage folder 52 along Next collecting storehouse 521 to be rotated to (in terms of the axial motor drive direction of output) corresponding with the accepting hole 41 of output shaft 4 clockwise Position, shown in reference picture 21, push back slip lid 53, sliding pin 711 moves along a straight line to two along the first chute 701 relative to slip lid 53 The intersecting oblique angle portion of bar hypotenuse 724.The continuous operation for pulling slip lid 53 and pushing back slip lid 53, the i.e. slip lid 53 of performing continuously is transported Dynamic, sliding pin 711 still imports the first chute 701 by Y types guide plate 74, and storage folder is just driven according to the number that storehouse is housed shown in Figure 21 Word sequential movements, this kind of pattern is the positive shaping modes (shaping modes clockwise) in sequential adjustment pattern.
Reference picture 22 and Figure 23, rotary-mode selecting-button 171 make lever with the left side of slip lid 53 (from motor to output shaft Direction see) arrow correspondence, cam pin 172 is moved to the left side of slip lid 53 also with model selection button 171, and such Y types are oriented to The one side in left side offsets in single head end the first chute 701 of direction of plate 74, the bilateral end of cam pin 172 and Y types guide plate 74, this Sample Y types guide plate 74 can not now pull slip lid 53, sliding pin 711 is along middle part chute 703 relative to slip lid 53 to right rotation Linear motion offsets up to sliding pin 711 and Y types guide plate 74, because the single head end of Y types guide plate 74 is towards the first chute 701, Therefore slip lid 53 is pulled on so that sliding pin 711 is moved under the guiding of Y types guide plate 74 to the second chute 702, sliding pin 711 is relative Generate radial displacement in output shaft 4, oscillating deck 71 be driven to rotate so as to drive control mechanism 60 drive storage folder 52 along It is corresponding with the accepting hole 41 of output shaft 4 counterclockwise next collecting storehouse 521 to be rotated to (in terms of the axial motor drive direction of output) Position, shown in reference picture 23, push back slip lid 53, sliding pin 711 moves along a straight line to two along the second chute 702 relative to slip lid 53 The intersecting oblique angle portion of bar hypotenuse 724.The continuous operation for pulling slip lid 53 and pushing back slip lid 53, the i.e. slip lid 53 of performing continuously is transported Dynamic, sliding pin 711 still imports the second chute 702 by Y types guide plate 74, and the folder of storage 52 is just driven according to collecting storehouse shown in Figure 23 Numerical order is moved, and this kind of pattern is the reverse shaping modes (shaping modes counterclockwise) in sequential adjustment pattern.
Reference picture 24 and Figure 25, rotary-mode selecting-button 171 make lever corresponding with the four-headed arrow at the middle part of slip lid 53, Cam pin 172 is moved to slip lid 53 along the middle part perpendicular to output shaft axis direction, cam pin also with model selection button 171 172 are located at the centre at the bilateral end of Y types guide plate 74, and Y types guide plate 74 could be arranged to only under external force can Rotation, by the single head end of Y types guide plate 74 towards exemplified by the second chute 702, now pulling slip lid 53, sliding pin 711 is along middle part Chute 703 is relative to the linear motion of slip lid 53 until sliding pin 711 and Y types guide plate 74 offsets, because the single head of Y types guide plate 74 End towards the second chute 702, therefore pull on slip lid 53 so that sliding pin 711 under the guiding of Y types guide plate 74 to the first chute 701 motions, sliding pin 711 generates radial displacement relative to output shaft 4, while the effect that Y types guide plate 74 is moved in sliding pin 711 Under rotate to the single head end of Y types guide plate 74 towards the first chute 701, shown in reference picture 26, oscillating deck 71 be driven to rotate from And to drive storage folder to be rotated to 52 clockwise (in terms of the axial motor drive direction of output) next for drive control mechanism 60 The corresponding position of accepting hole 41 of storehouse 521 and output shaft 4 is housed, shown in reference picture 25, slip lid 53 is pushed back, sliding pin 711 is along the One chute 701 moves along a straight line to the intersecting oblique angle portion of two hypotenuses 724 relative to slip lid 53.Perform again and pull slip lid 53 and push away The operation of slip lid 53 is returned, sliding pin 711 imports the second chute 702 by Y types guide plate 74, and storage folder 52 is just driven along counterclockwise Direction (in terms of the axial motor drive direction of output) rotates to the upper one corresponding position of accepting hole 41 for housing storehouse 521 and output shaft 4, The continuous operation for pulling slip lid 53 and pushing back slip lid 53, the i.e. slip lid 53 of performing continuously is moved, and sliding pin 711 is just in the first chute Moved in turn in 701 and in the second chute 702, corresponding storage folder 52 is also in adjacent two collectings for housing storehouse and output shaft Hole switches in turn between corresponding position, and this kind of pattern is repeatedly shaping modes.
The motion process of movement conversion mechanism and controlling organization is similar with first embodiment in above-mentioned embodiment, herein Repeat no more.
The above-mentioned definition to each element is not limited in the various concrete structures mentioned in embodiment 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;Slip lid is used for band follower link or drive control mechanism, and its structure type can have a variety of such as pull bars, end cap;This Outside, in above-mentioned embodiment, moving to axial between connector and work head storage folder can also be that connector is fixed, and Storage folder can either be axially moved and can also rotate, and connector can also be coaxially disposed etc. with motor shaft.In addition, to it Structure simultaneously has no special requirements, and visual different interior accordingly changes configuration, can increase new element, can also reduce Unnecessary element.

Claims (22)

1. a kind of hand-held tool, including:
Casing;
Output shaft, with the axially arranged accepting hole for accommodating work head;
Work head support mechanism, is at least partially arranged in casing, and the work head support mechanism includes being used to house work head Several house storehouses, the work head support mechanism can be adjusted to that one of to house storehouse corresponding with the accepting hole Position;
Connector, is arranged in casing, and the connector can be moved between operating position and off-position, in working position Put, the connector makes the work head being housed in the collecting storehouse be coupled with output shaft through one in several collecting storehouses; In off-position, the connector exits several and houses one in storehouse and separated with the collecting storehouse;
Operating parts, is arranged on the casing and can be relative to chassis movement;
Automatic switching control equipment, motion in response to the operating parts and the position to the head support mechanism that works are adjusted;
It is characterized in that:The hand-held tool also includes mode selector, and the mode selector operationally makes certainly Dynamic switching device selection is in following one of which pattern:
Sequential adjustment pattern, the automatic switching control equipment driving work head support mechanism is moved in one direction;
Reciprocal shaping modes, the automatic switching control equipment driving work head support mechanism is moved back and forth.
2. hand-held tool as claimed in claim 1, it is characterised in that:Mode selector includes being arranged on operating parts Model selection button, the model selection button can select different operator schemes relative to operating parts rotation.
3. hand-held tool as claimed in claim 2, it is characterised in that:Both the model selection button and the operating parts it One is provided with least two grooves, and another of both the model selection button and the operating parts are provided with keeper, institute Keeper is stated to may be selected from different engagements to be maintained at the model selection button into the position of correspondence different mode.
4. hand-held tool as claimed in claim 1, it is characterised in that:The work head support mechanism has parallel to output The rotation axis of axle axial direction, the sequential adjustment pattern includes the work head support mechanism and transported clockwise around rotation axis The first dynamic sequential adjustment pattern and the second sequential adjustment pattern around rotation axis counterclockwise motion, are adjusted in the first order Under section pattern, described several house storehouse, and positive sequence is corresponding with accepting hole successively in order, described under the second sequential adjustment pattern Several house storehouse, and inverted order is corresponding with accepting hole successively in order.
5. hand-held tool as claimed in claim 1, it is characterised in that:The automatic switching control equipment includes being connected to operating parts On movement locus selection device, the mode selector is connected with movement locus selection device and can limit or permit Perhaps the motion of described movement locus selection device so that automatic switching control equipment sequential adjustment pattern and reciprocal shaping modes it Between change.
6. hand-held tool as claimed in claim 5, it is characterised in that:The operating parts is provided with chute, described to cut automatically Changing device also includes the sliding pin for being used to drive work head support mechanism to move, and the sliding pin can be in chute along the first track Or second track motion, under sequential adjustment pattern, the sliding pin selects one under the guide effect of movement locus selection device Moved along the first track or the second track;Under reciprocal shaping modes, the sliding pin is in movement locus selection device Moved in turn along the first track and the second track under guide effect.
7. hand-held tool as claimed in claim 6, it is characterised in that:The movement locus selection device includes being arranged at cunning Guide plate in groove, the guide plate is pivotally mounted on operating parts, and the mode selector includes what is coordinated with guide plate Locating part, under sequential adjustment pattern, the locating part restricted guidance plate rotation;Under reciprocal shaping modes, the locating part Guide plate is allowed to rotate.
8. hand-held tool as claimed in claim 7, it is characterised in that:The mode selector includes being pivotally mounted to behaviour Model selection button in workpiece, the locating part is set relative to the rotation axis off-center of model selection button.
9. hand-held tool as claimed in claim 1, it is characterised in that:The work head support mechanism has parallel to output The rotation axis of axle axial direction, described several house storehouse and are uniformly arranged around the rotation axis, and each house prolonging for storehouse Stretch direction parallel with rotation axis, described several, which house storehouse, includes the first collecting storehouse and the second collecting storehouse, in back and forth regulation mould Under formula, the first collecting storehouse and the second collecting storehouse are corresponding with accepting hole in turn.
10. hand-held tool as claimed in claim 1, it is characterised in that:The operating parts is axially transported along the output shaft Move and the connector can be driven to move.
11. hand-held tool as claimed in claim 1, it is characterised in that:The connector is in working condition and release conditions Between along the output shaft be axially moved.
12. a kind of hand-held tool, including:
Casing;
Output shaft, with the axially arranged accepting hole for accommodating work head;
Work head support mechanism, is at least partially arranged in casing, and the work head support mechanism includes being used to house work head Several house storehouses, the work head support mechanism can be adjusted to that one of to house storehouse corresponding with the accepting hole Position;
Connector, is arranged in casing, and the connector can be moved between operating position and off-position, in working position Put, the connector makes the work head being housed in the collecting storehouse be coupled with output shaft through one in several collecting storehouses; In off-position, the connector exits several and houses one in storehouse and separated with the collecting storehouse;
Operating parts, is arranged on the casing and can be relative to chassis movement;
Automatic switching control equipment, motion in response to the operating parts and the position to the head support mechanism that works are adjusted;
It is characterized in that:The hand-held tool also includes mode selector, and the mode selector operationally makes certainly Dynamic switching device selection is in following one of which pattern:
Positive shaping modes, the automatic switching control equipment driving work head support mechanism is moved in the first direction;
Transported in the opposite direction with first party on reverse shaping modes, the automatic switching control equipment driving work head support mechanism edge It is dynamic.
13. hand-held tool as claimed in claim 12, it is characterised in that:Mode selector includes being arranged on operating parts Model selection button, the model selection button can be relative to operating parts rotation to select different operator schemes.
14. hand-held tool as claimed in claim 13, it is characterised in that:Both the model selection button and the operating parts One of be provided with least two grooves, another of both the model selection button and the operating parts provided with keeper, The keeper may be selected from different engagements to be maintained at the model selection button into the position of correspondence different mode.
15. hand-held tool as claimed in claim 12, it is characterised in that:The work head support mechanism has parallel to defeated The rotation axis of shaft axial direction, the work head support mechanism can be square clockwise or counter-clockwise around its rotation axis To rotation, under positive shaping modes, described several house storehouse, and positive sequence is corresponding with accepting hole successively in order, is reversely adjusting Under pattern, described several house storehouse, and inverted order is corresponding with accepting hole successively in order.
16. hand-held tool as claimed in claim 12, it is characterised in that:The automatic switching control equipment includes being connected to operation Movement locus selection device on part, the mode selector is connected with movement locus selection device and can limit described Movement locus selection device moves along a direction in opposite both direction and automatic switching control equipment is adjusted mould in forward direction Changed between formula and reverse shaping modes.
17. hand-held tool as claimed in claim 14, it is characterised in that:The operating parts is provided with chute, described automatic Switching device also includes the sliding pin for being used to drive work head support mechanism to move, and the sliding pin can be in chute along the first rail Mark or the motion of the second track, under positive shaping modes, the sliding pin is in the presence of movement locus selection device along the Slide one track;Under reverse shaping modes, the sliding pin is slided in the presence of movement locus selection device along the second track It is dynamic.
18. hand-held tool as claimed in claim 15, it is characterised in that:The movement locus selection device includes being arranged at Guide plate in chute, the guide plate is pivotally mounted on operating parts, and the mode selector includes coordinating with guide plate Locating part, under positive shaping modes, the locating part restricted guidance plate, which rotates, causes guide plate to be oriented to sliding pin along first Slide track;Under reverse shaping modes, the locating part restricted guidance plate, which rotates, causes guide plate to be oriented to sliding pin along second Slide track.
19. hand-held tool as claimed in claim 18, it is characterised in that:The mode selector includes being pivotally mounted to Model selection button on operating parts, the locating part is set relative to the rotation axis off-center of model selection button.
20. hand-held tool as claimed in claim 12, it is characterised in that:The work head support mechanism has parallel to defeated The rotation axis of shaft axial direction, described several house storehouse and are uniformly arranged around the rotation axis, and each house storehouse Bearing of trend is parallel with rotation axis.
21. hand-held tool as claimed in claim 12, it is characterised in that:The operating parts is axially transported along the output shaft Move and the connector can be driven to move.
22. hand-held tool as claimed in claim 12, it is characterised in that:The connector is in working condition and release conditions Between along the output shaft be axially moved.
CN201610216663.6A 2013-01-08 2013-01-08 Hand-held tool Active CN105729411B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610216663.6A CN105729411B (en) 2013-01-08 2013-01-08 Hand-held tool

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CN201610216663.6A CN105729411B (en) 2013-01-08 2013-01-08 Hand-held tool
CN201310006329.4A CN103909501B (en) 2013-01-08 2013-01-08 Hand-held tool

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CN201086280Y (en) * 2006-09-18 2008-07-16 谢庆 Multi-tool head electric tool
CN100421880C (en) * 2006-11-30 2008-10-01 孙延新 Multiple-operation system rotary electric tool
DE102006059688A1 (en) * 2006-12-18 2008-06-19 Robert Bosch Gmbh Motor driven machine tool
CN201102216Y (en) * 2007-12-06 2008-08-20 胡欧军 Screwdriver
CN102114623B (en) * 2011-01-11 2012-10-03 杭州巨星科技股份有限公司 Screwdriver
CN202241238U (en) * 2011-09-06 2012-05-30 洲晟实业股份有限公司 Accommodating assembly for hand tool head

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