CN103831767A - Screw supporting device and screw tool - Google Patents
Screw supporting device and screw tool Download PDFInfo
- Publication number
- CN103831767A CN103831767A CN201210480825.9A CN201210480825A CN103831767A CN 103831767 A CN103831767 A CN 103831767A CN 201210480825 A CN201210480825 A CN 201210480825A CN 103831767 A CN103831767 A CN 103831767A
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- screw
- clamping device
- gauge tap
- screw instrument
- instrument according
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- 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
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention relates to a screw supporting device used for assisting a screw tool in locating a screw. The screw tool is provided with an output shaft axis. The screw supporting device comprises a shell, a drive piece and at least one supporting unit capable of supporting the screw, wherein the drive piece is located in the shell and connected with the screw tool, and the drive piece responds to the screw tool to abut against a workpiece through the screw in the direction of the output shaft axis and drives the supporting unit to move to the position where the screw is supported. According to the screw supporting device, axial abutting force generated when the screw abuts against the screw tool is utilized for making a supporting mechanism for supporting the screw automatically support the screw.
Description
Technical field
The present invention relates to a kind of screw supporting device and screw instrument.
Background technology
In the mankind's daily life, screw is very common, can be applied to a lot of occasions.For example, as in house decoration process, the sheet material that often two scripts need to be separated links together, and this just hammers in sheet material with screw.Also have for example hanging articles on wall or on ceiling, also can or hammer into screw on ceiling on corresponding wall.The thing that we need to be hammered into this class sheet material or wall etc. by screw is referred to as workpiece.For the process that screw is hammered into workpiece, people mainly consider following factor: wish that screw always hammers into workpiece with the normal direction of vertical surface of the work 1..2. when screw is screwed into workpiece, do not need the strength costing a lot of money, play the effect of saving labourer's muscle power.3. be screwed into short that time that the whole process of screw spends tries one's best, can save the time that labourer spends.
At present screw being screwed into workpiece has several frequently seen method, and a kind of method is to utilize hand-operated tools that screw is screwed into workpiece, and hand-operated tools can be flat blade screwdriver, crosspoint tip screwdriver etc.But this method has a lot of shortcomings, hand-operated tools cannot provide extra moment of torsion and can only rely on labourer oneself that moment of torsion is provided, like this with regard to much muscle power of labor intensive person.In addition, the rotary speed of hand-operated tools is very low, makes screw be screwed into the spent time of workpiece and greatly extends, and has reduced labourer's efficiency.
Also have a kind of method to utilize electric tool that screw is screwed into workpiece, electric tool can be screwdriver, electric drill etc.Electric tool adopts electric power motor output machine power, thereby conventionally can obtain higher moment of torsion and rotating speed faster.Can greatly save labourer's muscle power and time.But screw is easy to depart from normal orientation being screwed in process, labourer manually righting screw just can be screwed into.This has brought very large inconvenience to labourer.These people are found out to certain methods avoids screw to produce being screwed in process.Clamp screw as Chinese patent CN2142385Y has disclosed employing Elastic clamping plate, keep its vertical surface of the work.For example Chinese patent CN2205766Y discloses the clamp screws device being made up of buckle reed again.But these clamp screws devices are less and result of use is undesirable to the chucking power of screw, screw is easy to from these clamping devices, come off or occur the situation that screw tilts, and gives to be screwed into process and to make troubles, and cannot really increase work efficiency.In addition, these devices are difficult to and electric tool is combined with.
This is necessary to design a kind of device that can effectively help screw and can overcomes above various shortcoming.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of screw supporting device that can automatically help screw.
The present invention solves the technical scheme that prior art problem adopts: a kind of screw clamping device, for additional screws tool positioned screw, described screw instrument provides around the power of an axis rotation and exports to described screw, and described screw clamping device comprises main body, is fixedly connected with screw instrument; Driving mechanism, can move relative to main body; Clamping device, for clamp screws; Wherein screw clamping device also comprises exercisable trigger mechanism, and trigger mechanism makes driving mechanism move to the direction away from main body along axis, thereby drives clamping device to move to the position of clamp screws.
Preferably, driving mechanism comprises movably actuator and the bias piece between main body and actuator, and bias piece is along axis to the direction bias voltage actuator away from main body.
Preferably, trigger mechanism comprise can fixed drive mechanism with the triggering part of main body relative position and be connected the trigger switch that triggers part, trigger switch operationally makes relatively moving of driving mechanism and main body.
Preferably, trigger part and comprise and be fixedly connected with the stiff end of driving mechanism and the block tongue away from stiff end, block tongue clamping main body is fixed the relative position of driving mechanism and main body.
Preferably, driving mechanism also comprises the rotating shaft being positioned on actuator, and stiff end surrounds rotating shaft and makes to trigger part and can enclose and rotate around the axis, thereby makes selectively clamping main body of block tongue or depart from clamping main body.
Preferably, trigger part and also comprise the link that connects trigger switch, stiff end and link are sawtooth portion, and sawtooth portion can connect respectively trigger switch and driving mechanism one-way movable.
Preferably, the quantity that triggers part is two and symmetrical about axis, and trigger switch is U-shaped, and two triggering parts are connected to the end of U-shaped trigger switch.
Preferably, the driving mechanism surface of the work that butt screw hammers into vertically, driving mechanism is to move, clamping device is moved to the position of unclamping clamp screws near the direction of main body.
Preferably, triggering part is elastic component, and elastic component comprises and be fixedly connected with the stiff end of driving mechanism and the block tongue away from stiff end, and the movement that triggers part makes block tongue clamping main body.
Preferably, clamping device comprises the support rotating around rotating shaft and is positioned at the claw of the first end of support, and claw is along the direction clamp screws of vertical axis.
Preferably, driving mechanism is by second end with respect to first end of connecting rod connection bracket, and connecting rod moves support is rotated along axis.
Compared with prior art, beneficial effect of the present invention is: utilize switch control screw supporting device automatically to help screw, simplify the operation, saved manpower.
Another object of the present invention is to provide a kind of screw instrument that can easy disassembly screw supporting device.
The technical solution adopted in the present invention is: a kind of screw instrument, comprises housing; Motor, is positioned at housing; Working end, squeezes into workpiece screw along axis direction; Transmission mechanism, passes to working end the rotation of motor output; Screw clamping device, connects working end and for helping screw; Wherein screw instrument also comprises the gauge tap of attachment screw clamping device, gauge tap operationally switches between fixed position and off-position, and in fixed position, screw clamping device is fixedly connected with housing, in off-position, screw clamping device can be from screw instrument removal.
Preferably, screw instrument comprises the receiving unit that is positioned at working end, and screw clamping device comprises the installation portion that connects receiving unit, and screw clamping device is arranged on screw instrument along axis direction.
Preferably, receiving unit also comprises the guide rail of axial setting, and installation portion comprises the guide groove that coordinates guide rail.
Preferably, the bias piece of receiving unit bias voltage screw clamping device, bias piece is the direction bias voltage screw clamping device away from screw instrument along axis direction.
Preferably, receiving unit also comprises location division, and in the time of gauge tap clamping location division, gauge tap overcomes the biasing force of bias piece and is in a fixed position; In the time that gauge tap departs from clamping location division, gauge tap is in off-position.
Preferably, location division is locating slot, and gauge tap is the trough rim of clamping locating slot selectively.
Preferably, gauge tap comprises the connector of attachment screw clamping device and connects the operating parts of connector, the biasing force that connector provides bias voltage control switch to be in a fixed position, the biasing force that operating parts operationally overcomes connector makes gauge tap in off-position.
Preferably, screw clamping device comprises the rotating shaft that vertical axis arranges, and connector operationally encloses and rotates around the axis, thereby gauge tap is operationally switched between fixed position and off-position.
Preferably, operating parts comprises Access Division that can clamping location division, and gauge tap is switched to behind off-position, and Access Division departs from clamping location division.
Preferably, connector both ends are sawtooth portion, and sawtooth portion can one-way movable ground attachment screw clamping device and operating parts respectively.
Compared with prior art, beneficial effect of the present invention is: screw supporting device can be assemblied on screw instrument easily.
Another object of the present invention be to provide a kind of can rigging screw supporting device and can realize storage and quick-replaceable screw instrument of working head.
The technical solution adopted in the present invention is: a kind of screw instrument, comprising: housing; Motor, is positioned at housing outputting rotary power; Output shaft, has the accepting hole that working head is held in axial setting; Transmission mechanism, passes to output shaft by the rotary power of motor output; Working head supporting mechanism, is arranged in housing, and working head supporting mechanism has several receiving spaces that are set up in parallel for support works head; Connecting axle, is arranged in housing and can makes working head in being positioned at the operating position of receiving space or being positioned at the collecting position of working head supporting mechanism; Wherein, screw instrument also comprises screw clamping device, and screw clamping device operationally clamps the screw of butt working head.
Preferably, what one end of connecting axle and transmission mechanism can transmitting torques is connected, and the other end of connecting axle can be connected with output shaft and the rotation of driver output axle.
Preferably, working head supporting mechanism is rotatable is supported on and between transmission mechanism and output shaft.
Preferably, screw instrument also comprises the operating parts being movably connected on housing, and operating parts drives connecting axle axially-movable.
Preferably, a part for working head supporting mechanism is housed in housing, and another part is covered by operating parts and along with operating parts moves and exposes.
Preferably, screw clamping device comprises the clamping device for clamp screws, and clamping device comprises the support rotating around rotating shaft, makes clamping device clamp screws rotationally.
Preferably, screw clamping device comprises the main body that is fixedly connected with screw instrument, the driving mechanism that can move relative to main body, for clamping device and the exercisable trigger mechanism of clamp screws, trigger mechanism makes driving mechanism move to the direction away from main body along axis, thereby drives clamping device to move to the position of clamp screws.
Preferably, screw clamping device utilizes one end of plane, inclined-plane or skewed slot driving arm, makes the claw clamp screws of the other end that is positioned at support.
Preferably, screw clamping device is the magnetic sleeve of absorption screw.
Preferably, screw instrument comprises and is positioned at axially extended receiving unit, and screw clamping device comprises the installation portion that connects receiving unit, and screw clamping device is arranged on screw instrument along axis direction.
Compared with prior art, beneficial effect of the present invention is: can realize on the storage of working head and quick-replaceable screw instrument and add screw supporting device, make clamp screws convenient, operating efficiency improves.
Accompanying drawing explanation
Above-described object of the present invention, technical scheme and beneficial effect can, by the detailed description that can realize specific embodiments of the invention below, be described and clearly acquisition simultaneously by reference to the accompanying drawings.
Identical label in accompanying drawing and description and symbol are for representing element identical or that be equal to.
Fig. 1 is the schematic diagram of the screw instrument that comprises screw supporting device of first embodiment of the invention.
Fig. 2 is the first visual angle schematic diagram that in Fig. 1, screw supporting device decomposes along output shaft axis.
Fig. 3 is the second visual angle schematic diagram that in Fig. 1, screw supporting device decomposes along output shaft axis.
Fig. 4 is the cutaway view along the first tangent plane of screw supporting device in Fig. 1.
Fig. 5 is the exploded perspective view of the trigger mechanism of screw supporting device in Fig. 1.
Fig. 6 is that the trigger mechanism of screw supporting device in Fig. 1 is removed fixing schematic diagram.
Fig. 7 is that the trigger mechanism of screw supporting device in Fig. 1 is not removed fixing schematic diagram.
Fig. 9 is the cutaway view along the second tangent plane of screw supporting device in Fig. 1.
Fig. 9 is the schematic diagram that in Fig. 1, screw supporting device removes part main body.
Figure 10 is the cutaway view that in Fig. 1, screw instrument removes screw supporting device.
1, screw instrument 2, shell 3, screw clamping device
4, main body 5, clamping device 6, driving mechanism
7, trigger mechanism 8, gauge tap 9, connecting axle
10, storage folder 11, output shaft 12, slip lid
13, magnet 14, accommodate storehouse 15, fixed block
22, axis of operation 23, handle 24, switch
25, power brick 26, transmission mechanism 27, working end
28, working head 29, receiving unit 30, guide portion
31, location division 32, locating slot 33, bias piece
34, bias voltage groove 35, planetary gear reducing mechanism 36, pinion gear mechanism
41, installation portion 42, guide groove 43, perforation
44, rotating shaft 45, card access surface 46, the second accommodating groove
47, rotating shaft 48, fitting 49, abutting part
50, pull bar 51, support 52, claw
53, rotary shaft hole 54, the first bearing pin 55, the first pin shaft hole
56, the second bearing pin 57, the second pin shaft hole 58, grab
59, pressing plate 61, rotating shaft 62, accommodation hole
63, actuator 64, the second bias piece 65, shaft hole
66, the first accommodating groove 67, tie rod hole 68, fixture
71, trigger switch 72, triggering part 73, U-shaped bottom
74, U-shaped arm 75, accommodation hole 76, first end
77, the second end 78, block tongue 81, operating parts
82, connector 83, projection 84, accommodation hole
85, first end 86, the second end 100, screw
301, guide rail 511, first end 512, the second end
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Be the screw instrument 1 of one embodiment of the invention as shown in Figures 1 to 10.The screw instrument here can be both the screwdriver that belongs to electric tool, can be also hand-operated tools.In the present embodiment, screw instrument 1 comprises a shell 2.In shell 2, contain motor 21.Motor 21 roughly extends along an axis direction.Motor 21 is for generation of the rotation output around axis of operation 22.Screw instrument also comprises the handle 23 for gripping.Handle 23 extends along the direction that departs from this axis, makes the entirety of screw instrument 1 be handgun shape.Handle 23 is provided with the switch 24 for starting or close motor 21.For the ease of the miniaturization of whole screw instrument 1 volume, be provided with the power brick 25 for offering motor 21 power in the inside of handle 23.Power brick 25 is rechargeable, is provided with the charging inlet (not shown) for charging to power brick 25 in the outside of handle 23.In shell 2, also comprise the transmission mechanism 26 of power connecting motor 21.Transmission mechanism 26 is for being delivered to rotation output the working end 27 of screw instrument 1.Working end 27 and handle 23 are positioned at the corresponding both sides of screw instrument 1.For convenience, screw instrument 1 is defined as to front side (left side in Fig. 1) near a side of working end 27, screw instrument 1 is orientated as to rear side (right side in Fig. 1) near a side of handle 23.Screw instrument 1 comprises the working head 28 that is positioned at front side.Working head 28 is subject to the driving of motor 21 and rotates around axis of operation 22.When work, screw 100 abuts on working head 28.Screw 100 is subject to the driving of working head 28 and is driven into workpiece.In order to be not easy to rock, be also provided with screw clamping device 3 at front end in screw 100 butt working heads 28.Screw clamping device 3 can manipulate to control and clamp screw 100.
As shown in Figure 1, screw clamping device 3 mainly comprises the main body 4 fixedly connecting with screw instrument 1, the clamping device 5 for clamp screws 100, the driving mechanism 6 that driving clamping device 5 clamps and the trigger mechanism 7 that operates triggering driving mechanism 6.As shown in Figures 2 and 3, main body 4 mainly comprises the installation portion 41 connecting on screw instrument 1.Installation portion 41 connects behind the working end 27 of screw instrument 1, and screw clamping device 3 selectively relative screw instrument 1 moves axially.Screw instrument 1 comprises the receiving unit 29 connecting with installation portion 41.Particularly, receiving unit 29 has the guide portion 30 of axial setting, and guide portion 30 guides screw supporting device 3 to move axially.In the present embodiment, receiving unit 29 is roughly axially extended cylinder.In other embodiment, receiving unit 29 can be also the structures such as square cylinder.Cylindrical center line is with respect to axis of operation 22 eccentric settings.Cylindrical one end is fixedly connected on the shell 2 of screw instrument 1.In a preferred embodiment, cylinder can be one-body molded with shell 2.The cylindrical other end is free end.Radially be projected with guide portion 30 at cylindrical side surface.Guide portion 30 is axially extended guide rail 301.The quantity of guide rail 301 is two, and guide rail 301 is distributed in cylindrical both sides symmetrically along axis.The length of guide rail 301 extends to the other end to guarantee enough guiding distances from cylindrical one end.Screw clamping device 3 is coupled in guide portion 30.The mounting portion 41 form fit receiving units 30 of the main body 4 of screw clamping device 3.Mounting portion 41 comprises the axially extended guide groove 42 being arranged in main body 4.The quantity of guide groove 42 is similarly two, corresponding with guide rail 301.Mounting portion 41 also comprises and holds the perforation 43 that barrel portion penetrates, and guide groove 42 is positioned at the circumferential side of perforation 43, and when making cylinder penetrate perforation 43, guide rail 301 also penetrates guide groove 42 just.Certainly the present invention is not limited to this, also can on the mounting portion of screw clamping device 3 41, guide rail be set, and guide groove is set on the receiving unit 29 of screw instrument 1, can keep the structure of mounting portion 41 and receiving unit 29 form fit to be all fine.
After screw clamping device and screw instrument connect by mounting portion 41 and receiving unit 29 shapes, also needing one can be to realizing the mechanism of both axial location.Screw instrument also comprises gauge tap 8.Gauge tap 8 selectively switches between fixed position and off-position.In fixed position, screw clamping device 3 is fixedly connected with along axis direction with the housing of screw instrument 1, in off-position, screw clamping device can be from screw instrument removal, and without any need for extracting tool.In order to coordinate gauge tap 8, the receiving unit 29 of screw instrument 1 also comprises location division 31.In the time that gauge tap 8 and location division 31 connect, gauge tap 8 is just in a fixed position, and screw clamping device 3 is fixedly connected with screw instrument 1.In the time that gauge tap 8 disengagings connect with location division 31, gauge tap 8 is just in off-position, and screw clamping device 3 can disassemble from screw instrument 1.As shown in Figure 2 to Figure 3, location division 31 comprises the locating slot 32 being arranged on receiving unit 29, and gauge tap 8 can clamping enter locating slot 32.In the present embodiment, locating slot 32 is arranged on the cylindrical surface of receiving unit 29.This locating slot 32 extends vertically, and near the radial surfaces that cylinder is positioned at locating slot 32 have formed the sidewall that limits locating slot 32 surroundings, and when gauge tap 8 clampings enter locating slot 32, gauge tap 8 connects with the sidewall of locating slot 32.Location division 31 also comprises the bias piece 33 for bias voltage screw clamping device 3 simultaneously.Depart from after clamping locating slot 32 at gauge tap 8, bias piece 33 is that axial promotion screw clamping device 3 departs from screw instrument 1.Particularly, be provided with axially extended bias voltage groove 34 at receiving unit 29 center, bias piece 33 is positioned at this bias voltage groove 34.The abutting part 49 that main body 4 has to extend is connected to bias piece 33.Bias piece 33 can be stage clip or other elastic components.In a preferred embodiment, locating slot 32 and bias voltage groove 34 are side direction UNICOMs, facilitate like this bias piece 33 to enter bias voltage groove 34 from external mounting by locating slot 33.
As shown in Figure 2 to Figure 3, gauge tap 8 has comprised for the operating parts 81 for user's operation and the connector 82 of attended operation part 81.Operating parts 81 has the projection 83 that can snap in locating slot 32, and projection 83 can be connected to surrounding's sidewall of locating slot 32.On operating parts 81, also comprise that accommodation hole 84 is for holding the first end 85 of connector 82.In a preferred embodiment, the first end of connector 82 85 is fixing inserts accommodation hole 84, and first end 85 has and trigger to form certain bending, and design is also conducive to connector 82 and operating parts 81 connects like this.The main connection function that rises of connector 82, it is roughly elongated.With respect to the main body 4 of the second end 86 attachment screw supporting devices 3 of above-mentioned first end 85.The bending that the second end 86 forms wide-angle is to be enclosed in the lateral surface of rotating shaft 44 of main body 4.Make like this to arrange gauge tap 8 and can rotate to form respectively fixed position and off-position around rotating shaft 44 in operating process, the fixed position of gauge tap 8 and off-position form certain angle with respect to the rotating shaft 44 of main body 4 like this.And connector 82 preferably has certain flexible elastic component, and handled easily puts in place.And can be inserted in the accommodation hole 84 in main body 4 with its end after rotating shaft 44 in the second end 86 bendings.And the end of the second end 86 has serrate profile, the sawtooth portion with serrate profile can connect with other element uniaxiallies.Connect rear sawtooth portion and can not skid off, firmly connected easily like this.In a preferred embodiment, the end of connector 82 once forms operating parts 81 in the mode of injection moulding, like this operating parts 81 just and connector 82 be fixed together all the time, both can not come off, gauge tap 8 is as a whole.
Introduce the concrete operations of console switch 8 below.User connects by the guiding of mounting portion 41 and receiving unit 29, and screw clamping device 3 is installed on screw instrument 1.Then the biasing force that overcomes bias piece axially promotes screw clamping device 3, and screw clamping device 3 is moved to the direction near screw instrument 1.After moving into place, the projection 83 on operating parts 81 can just in time be snapped in locating slot 32 because of the elastic reaction of connector 82.Projection 83 is finally connected to surrounding's sidewall of locating slot 32.Now gauge tap 8 is in a fixed position as shown in Figure 5, and screw clamping device 3 is just fixedly connected with screw instrument 1 like this, and user can use screw clamping device 3 clamp screws.When user need to disassemble screw clamping device 3 from screw instrument 1, operating operation part 81 departs from clamping locating slot 32, under the effect of connector 82, gauge tap 8 44 turns to off-position around the shaft, now under the partial pressure of the bias piece 33 of receiving unit 29, screw clamping device 3 is along axis of operation 22 to moving away from the direction of screw instrument 1, and user just can disassemble screw clamping device 3 in the situation that of inapplicable extracting tool from screw instrument 1 like this.Here the another one benefit that uses bias piece is that bias piece 33 offers 3 one biasing forces away from screw instrument 1 of screw clamping device all the time.Beating after screw at every turn, making screw clamping device 3 can automatically be returned to preparation and beat the state of next screw, and needn't bother user manually to reset.
Fig. 2 to Fig. 9 has disclosed the structure of screw clamping device 3.First introduce lower trigger mechanism 7.As shown in Figure 4 and Figure 5, the Main Function of trigger mechanism 7 is that operation triggering driving mechanism 6 drives clamping device 5 clamp screws.Trigger mechanism 7 mainly comprises trigger switch 71 and the triggering part 72 that is connected trigger switch 71 and driving mechanism 6.Trigger switch 71 is positioned at the position of whole screw clamping device 3 outsides, and design is for handled easily like this.Trigger switch 71 is roughly U font and has bending U-shaped bottom 73 and two sections of straight U-shaped arms 74.U-shaped arm 74 is for being connected with triggering part 72 respectively.The end of U-shaped arm 74 has accommodation hole 75, and accommodation hole 75 holds triggering part 72.And the arch that U-shaped bottom 73 is evagination to be to provide user to operate, and to drive and trigger part 72 and produce mobile.The quantity that triggers part 72 is two, and symmetrical about axis of operation 22.Trigger part 72 for strip and there is relative first end 76 and the second end 77.First end 76 inserts in the accommodation hole 75 of U-shaped arm 74.First end 76 has equally zigzag profile and is convenient to assembling.The bending that the second end 77 of triggering part 72 forms certain angle is to be enclosed in rotating shaft 61 lateral surface of driving mechanism 6.The end of the second end 77 can be inserted in the accommodation hole 62 of driving mechanism 6 after encirclement rotating shaft 61 simultaneously.Trigger like this part 72 and form take rotating shaft 61 as the rotating lever of fulcrum, drive triggering part 72 to rotate certain angle around rotating shaft 61 by the operation of trigger switch 71.The second end 77 that triggers in addition part 72 has serrate profile equally.Trigger most of structure of part 72 similar to connector 82, but different be to trigger the part of part 72 between first end 76 and the second end 77 also to there is the block tongue 78 that protrudes from the plane that this strip triggering part limits.As shown in Figure 7, block tongue 78 is selectively connected in the card access surface 45 in main body 4.In the time that block tongue 78 is connected in card access surface 45, driving mechanism 6 does not change with the relative position of main body 4, and therefore driving mechanism 6 is not triggered.As shown in Figure 6, in the time that operation trigger switch 71 makes block tongue 78 depart from butt card access surface 45, driving mechanism 6 is just triggered.
As shown in Figure 8, driving mechanism 6 mainly comprises the actuator 63 that can move relative to main body 4 and the second bias piece 64 of bias voltage actuator 63.Actuator 63 is positioned at the front side of main body 4.In the present embodiment, actuator 63 is the setting about axis of operation 22 symmetries.Actuator 63 has the shaft hole 65 that holds rotating shaft 61.Shaft hole 65 runs through front side and the rear side of actuator 63, is fixed with rotating shaft 61 simultaneously in shaft hole 65.After can entering shaft hole 65, the second end 77 of triggering part 72 is wound on rotating shaft 61.Actuator 63, the first open accommodating groove 66 of sealing one end, one end is set near the place of main body 4, arranges the second open accommodating groove 46 of sealing one end, one end in main body 4 near the place of actuator 63.The open end of the first accommodating groove 66 and the second accommodating groove 46 is docking together, and the first accommodating groove 66 and the second accommodating groove 46 is connected and link together, and forms the accommodating groove of storage second bias piece 64.The two ends of this accommodating groove are respectively the blind end of the first accommodating groove 66 and the blind end of the second accommodating groove 46.The second bias piece 64 can be common stage clip or other forms of elastic component.One end of the second bias piece 64 is connected to the blind end of the second accommodating groove 46, and the other end is connected to the blind end of the first accommodating groove 66.In the time that the first accommodating groove 66 and the second accommodating groove 46 are close together, the second bias piece 64 is in compressed state, and therefore it applies and makes the biasing force of actuator 63 away from main body 4.Because main body 4 is fixedly connected on screw instrument 1, so the second bias piece 64 drives actuator 63 forward end to move, expand the distance between actuator 63 and main body 4.In the time that the block tongue 78 of trigger mechanism 7 is connected in the card access surface 45 of main body 4, its biasing force that has overcome the second bias piece 64 is close together actuator 63 and main body 4.In the time that operation trigger switch 71 makes to trigger block tongue 78 on part 72 and departs from the card access surface 45 of butt main body 4, under the partial pressure of the second bias piece 64, actuator 63 is along axis to moving away from the direction of main body 4, thereby makes driving mechanism 6 drive clamping device 5 to clamp.Certainly the present invention is not limited to trigger mechanism 7 and utilizes the form of block tongue 78 butt main bodys 4, and trigger mechanism 7 can also utilize the form of magnetic patch magnetic absorption main body to be fixed.Only need magnetic adsorptive power can overcome the biasing force of the second bias piece 64.
As shown in Figures 5 to 9, be also provided with tie rod hole 67 at actuator 63, in tie rod hole 67, be provided with wall from tie rod hole 67 to the interior outstanding fixture 68 of tie rod hole 67.Clamping device 5 comprises a pull bar 50.The entering in tie rod hole 67 and be fixedly connected with fixture 68 of this pull bar 50 parts, thus by pull bar 50, driving mechanism 6 drives clamping device 5.Clamping device 5, except comprising pull bar 50, also comprises the support 51 of its gearing and the claw 52 of its clamping action.Support 51 is connecting respectively pull bar 50 and claw 52.The quantity of support 51 is also two, and these two are symmetrical arranged about axis of operation 22.Support 51 can rotate around the axis of rotating shaft 47.Rotating shaft 47 vertical operation axis 22, its two ends are fixed in main body 4.Fixing mode can be by common fixed forms such as screw and nut fixedly connect.Support 51 is provided with the rotary shaft hole 53 passing for rotating shaft 47.In the present embodiment, whole support 51 is roughly L-shaped, and rotary shaft hole 53 is positioned at the knuckle place of its L-type support 51.Certainly rotary shaft hole 53 does not limit in the position of support 51, the optional position of support 51 again.The shape of support 51 does not limit simultaneously, and support 51 can be other shapes such as yi word pattern.Support 51 has first end 511 and the second relative end 512.The second end 512 cylinder lever connecting rods 50, pull bar 50 can pull support 51 to rotate around rotating shaft 47.The second end 512 is by the second bearing pin 56 cylinder lever connecting rods 50.The setting parallel with rotating shaft 47 of the second bearing pin 56.And the second end 512 has the second pin shaft hole 57 that appearance the second bearing pin 56 passes.In addition, pull bar 50 also has the grab 58 that can hook the second bearing pin 56.The second bearing pin 56 couples together pull bar 50 and support 51 through grab 58 and the second pin shaft hole 57 respectively.Certainly, in other embodiment, pull bar 50 also can connect the second bearing pin 56 with the form of perforation.
The first end 511 of support 51 is for connecting claw 52.When support 51 can drive claw 52 clamp screws after rotating shaft 47 rotates.The first end 511 of support 51 has two pressing plates that are parallel to each other 59, and claw 52 is fixed between two block pressur plates 59.Between pressing plate 59, be also provided with in addition the first bearing pin 54 and play auxiliary fixing effect.The first bearing pin 54 and the second bearing pin 56 be arranged in parallel.On two block pressur plates 59, be respectively equipped with the first pin shaft hole 55.The first bearing pin 54 is just in time through these two the first pin shaft holes 55 on pressing plate 59.The first bearing pin 54 is also through claw 52 simultaneously.The quantity of claw 52 is two, and about axis of operation 22 symmetries.The bearing of trend of the clamping direction of claw 52 and the first end 511 of support 51 at an angle.Claw 52 has comprised that two are the clamping part 60 that angle is opened, and screw 100 is clamped in clamping part 60.Support 51 drives the moving radially of claw 52 screws 100 that is positioned at first end 511 after rotating shaft 47 rotates, thereby makes clamping part 60 clamp screw 100.
In a preferred embodiment, screw instrument 1 itself is not that screw common to those skilled in the art is criticized instrument, but a kind of storage and the quick-replaceable power tool that can realize working head.Below this screw instrument 1 is introduced in detail.Due to screw clamping device 3 and aforementioned not variation, therefore omit and describe herein.Shown in Figure 10, screw instrument 1 comprises shell 2, motor 21, power brick 25, transmission mechanism 26, connecting axle 9, storage folder 10 and output shaft 11.Shell 2 is closed up and is assembled by screw (not shown) by symmetrical two and half housings, handle 23 parts that it has horizontal component and arranges in obtuse angle with horizontal component, preferred angle at 100 degree between 130 degree, can be pleasant when gripping handle 23 operates like this.Top in handle 11 parts is provided with switch 24, and power brick 25 is fixed on the rear portion of handle 23 parts of shell 2, and transmission mechanism 26 partial fixings are housed in the horizontal component of shell 2.
Transmission mechanism 26 comprises by (take the right side of the drawing of Figure 10 as rear) before backward the planetary gear reducing mechanism 35 and the pinion gear mechanism 36 that are driven by motor 21, wherein pinion gear mechanism 36 is connected with connecting axle 9, and by connecting axle 9, rotatablely moving of motor 21 is passed to output shaft 11.Output shaft 11 has the accepting hole that working head 28 is held in axial setting.Connecting axle 9 is arranged in shell 2, and can make working head 28 in being positioned at the operating position of accepting hole or being positioned at the collecting position of storage clip 10.The working head here mainly refers to that crosspoint tip screwdriver head, flat blade screwdriver that electric screw driver is conventional are first-class.Wherein storage folder 10 is rotatable is supported in shell 2 and between transmission mechanism 26 and output shaft 11.Storage folder 10 several receiving spaces that are set up in parallel 14 that have for supporting multiple working heads 28.Move axially through storage folder 10 or leave storage folder 10 by operation connecting axle 9, just can be in the time that electric screw driver be tightened or unclamp different screws the different working head 28 of quick-replaceable.
On shell 2, be slidably connected with slip lid 12, slip lid 12 can drive connecting axle 9 to move axially.A part for storage folder 10 is covered by slip lid 12, and exposes along with moving of slip lid 12; Another part is housed in shell 2.The present invention preferably stores folder 10 for cylindric, and convenient rotation takes up room little simultaneously, can certainly be arranged to square or leg-of-mutton etc.In the course of the work, slip lid 12 can be closed working head storage folder 10, thereby prevents that dust from entering, and in the time that needs are changed working head, removes slip lid 12 and can expose working head storage folder 10, the different working head of convenient selection.
Output shaft 11 is form of sleeve, and generally output shaft arranges hexagonal hole, can installment work in it 28, and working head cross section is the hexagon matching with hexagonal hole, connecting axle 9 is also hexagon.Connecting axle 9 inserts output shaft 11 and can drive output shaft 11 to rotate like this, and then drive working head 28 to rotate by output shaft 11, can use like this working head 28 of standard, and without offer the hole of accommodating working head 28 on connecting axle 9, avoid the weight and volume of the excessive increase complete machine of connecting axle 9 diameter.
The front end of connecting axle 9 is provided with magnet 13, be used for adsorbing working head 28, in the time selecting good berth head 28, can operate slip lid 12 drives connecting axle 9 to accommodate storehouse 14 through the working head of accommodating this working head 28, the magnet 13 that working head 28 is connected on axle 9 adsorbs, and under the promotion of connecting axle 9, leave working head and accommodate storehouse 14, enter output shaft 11.When work, connecting axle 9 drives output shaft 11 to rotate, and output shaft 11 drives working head 28 to rotate.Slip lid 12 can drive connecting axle 9 to move by the mode being connected with fixed block 15, in the time of needs mobile link axle 9, can remove by slip slip lid 12 restriction that connecting axle 9 is moved.Certainly, slip lid 12 drives the mode that connecting axle 9 moves to also have a lot, as the annular groove around week Monday outside it can be set on connecting axle 9, slip lid 12 is extend in annular groove and is connected with connecting axle 9 by a pin or steel wire ring, so neither affect the rotation of connecting axle 9, also do not affect slip lid 12 and drive the movement of connecting axle 9.
On working head storage folder 10, be evenly distributed with multiple working heads along its circumferencial direction and accommodate storehouse 14, working head is accommodated storehouse 14 along axially part sealing of working head storage folder 10, part excircle opens wide, when handled easily person selects working head 28 like this, can be easy to see from unlimited part the shape of working head 28 heads, thereby select fast the working head 28 needing.User operates slip lid 12 and drives connecting axle 9 to leave working head to accommodate storehouse 14, removes after the restrictions of working head storage folder 10 motions, and rotary work head storage is pressed from both sides 10 and accommodated storehouse and the axial corresponding position of output shaft 11 to next working head.
Realize the storage of working head and screw clamping device that quick-replaceable power tool connects is also not limited to the embodiment shown in Fig. 1 with this, also can adopt other forms of screw clamping device.For example adopt magnetic sleeve form to be socketed in front end, the afterbody of screw by magnetic absorption in this magnetic sleeve.Can also be the post of lifting of lifting screw, lift surface and there is magnetic and can adsorb the side of screw.Even and support and claw coordinate the mechanism the inside of clamp screws, be also not limited to the embodiment shown in Fig. 1.The one end that for example adopts plane, inclined-plane or skewed slot butt driving arm, makes support pivotable, is positioned at the claw clamp screws of the other end of support.
The present invention is not limited to lifted specific embodiment structure, and the structure based on the present invention's design all belongs to protection domain of the present invention.
Claims (10)
1. a screw instrument, comprises
Housing;
Motor, is positioned at described housing;
Working end, squeezes into workpiece screw along axis direction;
Transmission mechanism, passes to described working end the rotation of described motor output;
Screw clamping device, connects described working end and for helping described screw;
It is characterized in that: described screw instrument also comprises the gauge tap that connects described screw clamping device, described gauge tap operationally switches between fixed position and off-position, in described fixed position, described screw clamping device is fixedly connected with described housing, in described off-position, described screw clamping device can be from described screw instrument removal.
2. screw instrument according to claim 1, it is characterized in that: described screw instrument comprises the receiving unit that is positioned at described working end, described screw clamping device comprises the installation portion that connects described receiving unit, and described screw clamping device is arranged on described screw instrument along described axis direction.
3. screw instrument according to claim 2, is characterized in that: described receiving unit also comprises the guide rail of axial setting, described installation portion comprises the guide groove that coordinates described guide rail.
4. screw instrument according to claim 2, is characterized in that: the bias piece of screw clamping device described in described receiving unit bias voltage, described bias piece along described axis direction away from screw clamping device described in the direction bias voltage of described screw instrument.
5. screw instrument according to claim 4, is characterized in that: described receiving unit also comprises location division, and when described in described gauge tap clamping when location division, described gauge tap overcomes the biasing force of described bias piece and in described fixed position; When described in described gauge tap departs from clamping when location division, described gauge tap is in described off-position.
6. screw instrument according to claim 5, is characterized in that: described location division is locating slot, and described gauge tap is the trough rim of locating slot described in clamping selectively.
7. screw instrument according to claim 5, it is characterized in that: described gauge tap comprises the connector that connects described screw clamping device and the operating parts that connects described connector, described connector provides the biasing force of gauge tap in described fixed position described in bias voltage, and the biasing force that described operating parts operationally overcomes described connector makes described gauge tap in described off-position.
8. screw instrument according to claim 7, it is characterized in that: described screw clamping device comprises the rotating shaft that vertical described axis arranges, described connector operationally rotates around described rotating shaft, thereby described gauge tap is operationally switched between fixed position and off-position.
9. screw instrument according to claim 8, is characterized in that: described operating parts comprise can clamping described in the Access Division of location division, described gauge tap is switched to behind off-position, described Access Division departs from location division described in clamping.
10. screw instrument according to claim 7, is characterized in that: described connector both ends are sawtooth portion, and described sawtooth portion can connect respectively described screw clamping device and described operating parts one-way movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480825.9A CN103831767B (en) | 2012-11-23 | 2012-11-23 | Screw supporting device and screw instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480825.9A CN103831767B (en) | 2012-11-23 | 2012-11-23 | Screw supporting device and screw instrument |
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| CN103831767A true CN103831767A (en) | 2014-06-04 |
| CN103831767B CN103831767B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210480825.9A Active CN103831767B (en) | 2012-11-23 | 2012-11-23 | Screw supporting device and screw instrument |
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| CN113182833A (en) * | 2021-05-17 | 2021-07-30 | 陈保吉 | Screw locking machine |
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| Publication number | Publication date |
|---|---|
| CN103831767B (en) | 2015-12-09 |
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