CN106041836A - Power tool and working condition control method thereof - Google Patents
Power tool and working condition control method thereof Download PDFInfo
- Publication number
- CN106041836A CN106041836A CN201610201958.6A CN201610201958A CN106041836A CN 106041836 A CN106041836 A CN 106041836A CN 201610201958 A CN201610201958 A CN 201610201958A CN 106041836 A CN106041836 A CN 106041836A
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- China
- Prior art keywords
- delivery
- trigger member
- telecommunication
- signal
- power tool
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Portable Power Tools In General (AREA)
Abstract
The invention relates to a power tool and a working condition control method thereof. The power tool comprises a first output head, a second output head and a switching device. The switching device comprises a trigger piece, an induction piece and a control device, wherein the trigger piece corresponds to the first output head and/or the second output head; the induction piece moves relative to the trigger piece, is used for inducting the trigger piece in a not-contact mode and sends an electric signal according to the induction result; and the control device is used for receiving the electric signal and indentifying the output heads located in the working positions according to the electric signal. According to the switching device, after the first output head or the second output head is replaced, the control device can send different control signals, so that the power tool provided with the switching device switches different working conditions automatically and quickly so as to adapt to the different output heads.
Description
Technical field
The present invention relates to machining tools art, particularly relate to a kind of power tool and operating mode control thereof
Method processed.
Background technology
Double end power tool is widely used in the field such as machinery, building, owing to it includes two works
Make head, therefore can realize different functions with different work heads without changing fuselage, such as,
One work head realizes creeping into function, and another work head is to realize screwdriver function.
At present, double end power tool on the market fail to distinguish two work different functions and
Operating mode.After operator switches to another work head after using one of them work head, also need
Manually regulate the operating mode of this work head, to adapt to the different working condition requirements of two work heads, therefore
Reduce work efficiency, bring inconvenience to user.
Summary of the invention
Based on this, it is necessary to for being switched fast the work head operating mode problem of power tool,
A kind of power tool that can be switched fast work head operating mode and operating condition control method thereof are provided.
A kind of power tool, including housing, is arranged at the driving means of housing, and at least two
The individual delivery being arranged on being relatively fixed on indexing body, described at least two delivery includes using
In the first delivery and second delivery of rotary cutter, described first delivery, the second output
Head is alternately coupled with described driving means with swing or the mode that plugs by described indexing body
Thus it being in operating position, described power tool also includes switching device, described switching device bag
Including: trigger member, corresponding described first delivery and/or the second delivery are arranged；Induction pieces, with
Described trigger member relative motion, senses described trigger member for non-contactly, and according to induced junction
Fruit sends the signal of telecommunication；And control device, it is used for receiving the described signal of telecommunication, and according to described electricity
Signal identification is in the delivery of operating position.
After the switching device of the present invention changes the first delivery or the second delivery, controlling device can
Send different control signals, make automatically and rapidly to cut equipped with the power tool of this switching device
Change different mode of operations with adaptive different delivery.
Preferably, described control device sends according to the described signal of telecommunication and controls signal to accordingly drive
Dynamic device, is in different mode of operations controlling described power tool.
Preferably, described mode of operation include described first delivery and the second delivery wherein it
One performs drill mode.
Preferably, described mode of operation include described first delivery and the second delivery wherein it
One performs screwdriver pattern.
Preferably, described switching device also includes torque controller, and described control device is according to institute
The predetermined torque stating torque controller sends a control signal to driving means, to control described first
One of them the moment of torsion output of delivery and the second delivery.
Preferably, described torque controller includes potentiometer or encoder.
Preferably, described control device, according to the state parameter of driving means, controls driving means
Perform to slow down or shut down.
Preferably, at least during described state parameter includes electric current, voltage, rotating speed, moment of torsion
Individual.
Preferably, described induction pieces is sensor.
Preferably, described sensor is linear hall sensor.
Preferably, the described signal of telecommunication is voltage.
Preferably, described trigger member is magnetic part.
Preferably, the quantity of described trigger member is one, corresponding first delivery of described trigger member
Or second delivery arrange, according to the described signal of telecommunication, described control device judges that described trigger member is
The no induction region being positioned at described induction pieces, thus identify the first delivery and/or second defeated
The position lifted one's head.
Preferably, the quantity of described trigger member is two, said two trigger member respectively corresponding the
One delivery and the second delivery are arranged, the electricity that described control device transmits according to described induction pieces
Signal judges an induction region whether being positioned at described induction pieces in said two trigger member
In, thus identify the first delivery and/or the position of the second delivery.
Preferably, described trigger member is magnetic part, and described induction pieces is linear hall sensor,
For detecting the change of the magnetic field intensity of described magnetic part, and the change of described magnetic field intensity is turned
Turning to the described signal of telecommunication, described control device judges the position of described trigger member according to the described signal of telecommunication
Put, thus identify described first delivery and/or and the position of the second delivery.
Preferably, described trigger member include first magnetic part corresponding with described first delivery and
Second magnetic part corresponding with described second delivery, described first magnetic part and described second magnetic
Property part polarity arrangement contrary, described induction pieces is Hall element, is used for sensing described first
The magnetic field intensity of magnetic part and polarity of the magnetic field or the magnetic field intensity of described second magnetic part and
Polarity of the magnetic field, and produce the signal of telecommunication of correspondence to described control device, described control device according to
The described signal of telecommunication judges described first magnetic part and/or described second magnetic part relative induction part
Position, thus identify the first delivery or the second delivery being in operating position.
Preferably, described induction pieces is sensor, described control device include with sensor, turn
The master control borad that square actuator and driving means are electrically connected with.
The operating condition control method of a kind of power tool, described power tool includes housing, is arranged at
The driving means of housing, for controlling the trigger of driving means, at least two sets with being relatively fixed
Putting the delivery on indexing body, described delivery includes the first delivery for rotary cutter
And second delivery, described first delivery, the second delivery by described indexing body to swing
Or the mode that plugs alternately couples with described driving means, and switching device, described switching
Device includes: trigger member, and corresponding described first delivery and/or the second delivery are arranged；Sensing
Part, with described trigger member relative motion, is used for sensing described trigger member non-contactly, and according to
Sensing result sends the signal of telecommunication；And control device, it is used for receiving the described signal of telecommunication, and according to
The described signal of telecommunication identifies the delivery being in operating position, it is characterised in that described operating mode control
Method processed includes with following steps:
Start driving means；
Induction pieces sends the signal of telecommunication according to testing result；
Control device according to described signal of telecommunication identification the first delivery and/or the second delivery；
Control device and send control signal, control driving means and perform and the first delivery or second
The mode of operation that delivery is corresponding.
Preferably, further comprising the steps of:
Before the control signals are sent, the state parameter of control device acquisition driving means, and with
Parameter preset is made comparisons.
Preferably, the described signal of telecommunication include representing first signal of telecommunication described trigger member being detected with
And represent second signal of telecommunication being not detected by described trigger member, when receiving first signal of telecommunication, table
Show that trigger member is positioned at the detection region of induction pieces；When receiving second signal of telecommunication, represent and trigger
The detection zone that part is positioned at induction pieces is overseas.
Preferably, described trigger member includes the first trigger member and the second trigger member；When detecting
One trigger member, sends and represents the signal of telecommunication described first trigger member being detected；When detecting second
Trigger member, sends and represents the signal of telecommunication described second trigger member being detected.
A kind of hand-held tool, including housing, connects the handle of housing, is arranged at driving of housing
Dynamic device, and the first output for rotary cutter being arranged on being relatively fixed on indexing body
Head and the second delivery, described first delivery, the second delivery pass through described indexing body with pendulum
Dynamic or the mode that plugs alternately couples with described driving means thus is in operating position, and it is special
Levy and be: described power tool also includes that switching device, described switching device include:
Trigger member, corresponding described first delivery and/or the second delivery are arranged；
Induction pieces, with described trigger member relative motion, senses described trigger member for non-contactly,
And send the signal of telecommunication according to sensing result；And
Control device, be used for receiving the described signal of telecommunication, and the described signal of telecommunication is judged thus
Identify the delivery being in operating position.
Preferably, described induction pieces is sensor.
Preferably, described sensor is linear hall sensor.
Preferably, described trigger member is magnetic part.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the power tool of an embodiment.
Fig. 2 is the cross-sectional schematic of the main apparent direction of the power tool shown in Fig. 1.
Fig. 3 is indexable body and the solid of switching device partial structurtes of the power tool shown in Fig. 2
Schematic diagram.
Fig. 4 be the second embodiment induction pieces with magnetic part N extremely to work time corresponding
Principle schematic.
The broken line of output voltage values when Fig. 5 is the induction pieces induced magnetism part N pole shown in Fig. 4
Figure.
Fig. 6 is that the 3rd embodiment induction pieces is extremely former to work time corresponding with magnetic part S
Reason schematic diagram.
Fig. 7 is the broken line of the output voltage values of the induction pieces induced magnetism part S pole shown in Fig. 6
Figure.
Fig. 8 is embodiment of the present invention switching device structural representation.
Fig. 9 is the operating conditions flow chart of power tool shown in the present invention.
Figure 10 is the operating conditions flow chart of corresponding two trigger member in Fig. 9.
Figure 11 is the operating conditions flow chart of a corresponding trigger member in Fig. 9.
Figure 12 is the sub-process figure of corresponding step in Fig. 9.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is carried out more comprehensively
Description.Accompanying drawing gives the preferred embodiment of the present invention.But, the present invention can be with
Many different forms realize, however it is not limited to embodiment described herein.On the contrary, carry
Purpose for these embodiments is to make the understanding to the disclosure more thorough comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, and it can be straight
It is connected on another element or element placed in the middle can also be there is.When an element is considered as
" connect " another element, the while that it can being directly to another element or possibility
There is centering elements.Term as used herein " vertical ", " level ", "left", "right"
And similar statement is for illustrative purposes only.
Unless otherwise defined, all of technology used herein and scientific terminology with belong to this
The implication that bright those skilled in the art are generally understood that is identical.Saying in the present invention herein
Term used in bright book is intended merely to describe the purpose of specific embodiment, it is not intended that in
Limit the present invention.Term as used herein " and/or " include one or more relevant institute
Arbitrary and all of combination of list of items.
As shown in Figure 1 and Figure 2, a kind of power tool 100 of present pre-ferred embodiments, bag
Include fuselage 10, be provided with the indexable body 30 of first delivery the 32, second delivery 34, with
And switching device.Wherein first delivery the 32, second delivery 34 is respectively for reception one
Individual cutter also can drive it to rotate；Wherein cutter can be that drill bit, screwdriver bit, frosted are first-class
For processing object being carried out the working accessory of operation.First delivery 32 is provided with the first work
Making axle 322, the second delivery 34 is provided with the second working shaft 342, and the first working shaft
322, the second working shaft 342 can alternatively couple with output shaft 14.It is to say, when first
When delivery 32 switches to operating position, the first output shaft 322 couples with output shaft 14；When
When second delivery 34 switches to operating position, the second output shaft 342 couples with output shaft 14.
The power tool 100 of the present embodiment is a kind of hand-held tool, and fuselage 10 includes housing
10a, connects the handle 4 of housing 10a, is arranged at the driving means in housing 10a, output shaft
14 and actuating device 6 between driving means and output shaft 14, actuating device 6
For the rotary motion of driving means is transferred to output shaft 14.The indexing relative fuselage 10 of body 30
Pivoting around a fixed axis Y and arrange, the first delivery 32 sets respectively with the second delivery 34
In indexing body 30 both sides, and it is symmetrical arranged relative to the pivot axis Y of indexing body 30.This
The driving means of embodiment uses electro-motor 8, opens by being arranged at the trigger triggering of handle 4
Dynamic；Actuating device 6 is epicyclic train；Certainly motor 8 can also use steam-operating, hydraulic pressure horse
The type of drive such as reach to replace.
Power tool 100 also includes conversion and control mechanism 330, for by relative for indexing body 30
Housing 10a locks or discharges, when indexing body 30 is locked by conversion and control mechanism 330
In housing 10a, the first delivery 32 and the second delivery 34, one of them is in operating position,
When conversion and control mechanism 330 discharges the locking to indexing body 30, and indexing body 30 can drive first
Delivery 32 carries out position adjustments with the second delivery 34 relative housing 10a.In the present embodiment,
Only relieve the locking to indexing body 30, indexing body 30 ability when conversion and control mechanism 330
Rotate relative to housing 10a around pivot axis Y, so that delivery 32,34 can be in work
Change between position and off-position.One of delivery 32,34 is in and output shaft 14
During axially coupled operating position, say, that one of delivery 32,34 is in shape in place
State.Another of delivery 32,34 is in the inoperative position the most angled with output shaft 14
Put, say, that another of delivery 32,34 is in non-position.
Conversion and control mechanism 330 include relative output shaft 14 movable arrange clutch cover 12, with
And lockplate 16.Wherein clutch cover 12 is selectively by output shaft 14 and the first working shaft 322
Or couple with the second working shaft 342.Optional and the indexable body 30 of lockplate 16 engage or
Separate, when lockplate 16 engages with indexing body 30, indexing body 30 relative housing 10a locking,
One of first delivery 32, second delivery 34 is in operating position；When lockplate 16 with
Indexing body 30 separates, and output shaft 14 disengages with first working shaft the 322, second working shaft 342
Coupling, conversion and control mechanism 330 allows indexing body 30 relative housing 10a motion, with switching
The position of first delivery the 32, second delivery 34.The concrete control of conversion and control mechanism 330
Mode processed and structure can use for reference the applicant number of patent application be 201520061551.9 and
The technical scheme disclosed in the patent application document of 201620095447.6, the present invention does not goes to live in the household of one's in-laws on getting married
State.
Switching device includes trigger member 52, induction pieces 54, and is electrically connected with motor 8 and sense
Answer the control device of part 54.The fixing setting of the relative fuselage of induction pieces 54 10, trigger member 52
It is located at indexing body 30 edge and the position relative with fuselage 10.Trigger member 52 quantity can basis
Need to arrange one or two, when trigger member 52 is two, respectively with the first delivery 32
Corresponding with the second delivery 34.
When trigger member 5 arranges one, corresponding with the first delivery 32 or the second delivery 34.
Indexing body 30 rotates relative to casing 10a, can be by first delivery the 32, second delivery 34
Alternately switch to the operating position preset.Such setting can make trigger member 52 with indexing body
30 when rotating relative to fuselage 10, and the position of relative induction part 54 produces change, namely
Saying, trigger member 52 is moved between the induction region and non-inductive region of induction pieces 54, thus
Induction pieces 54 can be according to the sensing corresponding delivery of result identification 32,34.
Indexing body 30 relative to fuselage 10 rotate replaceable one-tenth in the way of plugging with fuselage 10 phase
Connect, when first delivery the 32, second delivery 34 is switched to operating position by needs,
Indexing body 30 can be dismantled from fuselage 10 or separated with fuselage 10, adjust indexing body 30
Connect fixing with fuselage 10 behind position, so that the first delivery 32 or the second delivery 34
Alternately switch to the operating position being connected with output shaft 14.When the first delivery 32 is in work
Making position, the first working shaft 322 connects with output shaft 14, and motor 8 drives the first delivery
32 work.When the second delivery 34 is in operating position, the second working shaft 342 and output shaft
14 connect, and motor 8 drives the second delivery 34 to work.
With reference to Fig. 3, in the first embodiment of the present invention, trigger member 52 uses magnetic part, quantity
It is two, the respectively first magnetic part 522 and the second magnetic part 524.First magnetic part 522,
The position of the second magnetic part 524 arrange respectively with first delivery the 32, second delivery 34 phase
Correspondence, first magnetic part the 522, second magnetic part 524 indexing body 30 relatively is fixedly installed.
Induction pieces 54 is generally positioned in the fuselage 1 housing 10a of power tool 100, indexing body 30
The first magnetic part 522 and the second magnetic part 524 is driven to move, when the first magnetic part 522 or the
Two magnetic parts 524 move in the induction region of induction pieces 54, and induction pieces 54 can be non-contactly
Sense the first magnetic part 522 or magnetic field intensity of the second magnetic part 524, and according to induced junction
Fruit is the first magnetic part 522 or the second magnetic part 524 in identifying current induction zone.Work as knowledge
Do not go out the first magnetic part 522 when being in induction region, then it is assumed that the first delivery 32 is in
Operating position or position, be in induction region, then when identifying the second magnetic part 524
Think that the second delivery 34 is in operating position or position.
First magnetic part 522 is contrary with the polarity arrangement of the second magnetic part 524, induction pieces 54
For Hall element 540, it is preferred to use linear hall sensor.First magnetic part 522 with suddenly
One end that your sensor 540 is relative is N pole, and the second magnetic part 524 and Hall element
540 relative one end are S pole.Hall element 540 for detection the first magnetic part 522 or
The magnetic field intensity of the second magnetic part 524, due to the first magnetic part 522 and the second magnetic part 524
Polarity different, Hall element 540 can be according to the different different magnetic fields produced of magnetic part
Intensity, thus judge that be positioned at induction region is the first magnetic part 522 or the second magnetic part
524.When the first magnetic part 522 enters induction region, Hall element 540 can receive
The magnetic field intensity of Hall element 540 is pointed to, when second from the N pole of the first magnetic part 522
When magnetic part 524 enters induction region, Hall element 540 can receive sensing the second magnetic
The magnetic field intensity of the S pole of part 524；Thus Hall element 540 can be according to the magnetic sensed
Field intensity size and Orientation, identifies that be positioned at induction region is N pole or S pole, also
Just can judge the first magnetic part 522 or the second magnetic part 524 is positioned at induction region,
Thus identify the first delivery 32 or the second delivery 34 is positioned at operating position or in place
State.
In the second embodiment of the present invention, trigger member 52 only arranges one, and indexing body 30 is relative
Housing 10a rotarily drives magnetic part 522a and moves relative to Hall element 540.Hall sensing
The change of the magnetic field intensity detected is converted into the signal of telecommunication by device 540, and this signal of telecommunication is with magnitude of voltage
Representing, this magnitude of voltage is linear with magnetic field intensity.
With reference to shown in Fig. 4, Fig. 5, will be described magnetic part 522a relative to Hall element 540
The operation principle of switching device during motion.That relative with Hall element 540 is magnetic part 522a
N pole, wherein, transverse axis represents the magnetic field intensity that Hall element 540 senses, magnetic field
Intensity has size and Orientation, and unit is G (Gauss, Gauss)；The longitudinal axis represents Hall element
540 output voltages, unit is V (Volt, volt).
When magnetic part 522a moves to the A point of Hall element 540 side, hall sensing
The magnetic field intensity that device 540 senses levels off to zero, Hall element 540 output voltage values a.
When magnetic part 522a moves to B point, Hall element 540 senses that magnetic induction is strong
Degree B ', Hall element 540 output voltage values b.
When magnetic part 522a moves to C point, Hall element 540 senses magnetic field intensity
C ', corresponding voltage value c.
Control device and preset the first delivery 32 when being in operating position or position, Hall
When controlling device, the voltage range of sensor 540 output, between b, c, detects that Hall passes
When the output voltage of sensor 540 is in predetermined voltage range, controls device and be then considered first
Delivery 32 is in position rather than the second delivery 34 is in position.Work as control
Device processed detects when the output voltage of Hall element 540 is not in preset range, then it is assumed that
Second delivery 34 is in position rather than the first delivery 32 is in position.
Control device, according to the delivery being in position identified, sends corresponding presetting
Control signal, controls motor 8 and performs corresponding mode of operation.
In the third embodiment of the present invention, trigger member 52 the most only arranges one, implements with first
The S pole of magnetic part 524a unlike example is corresponding with Hall element 540.
With reference to shown in Fig. 6, Fig. 7, will be described S pole and the Hall element of magnetic part 524a
540 pairs corresponding time switching device operation principle.
When magnetic part 524a moves to the A point of Hall element 540 side, hall sensing
The magnetic field intensity that device 540 senses levels off to zero, Hall element 540 output voltage values a.
When magnetic part 524a moves to B point, Hall element 540 senses that magnetic induction is strong
Degree B ', Hall element 540 output voltage values e.
When magnetic part 524a moves to C point, Hall element 540 senses magnetic field intensity
C ', Hall element 540 output voltage values f.
Control device and preset the first delivery 32 when being in position, Hall element 540
The voltage range of output, between e and f, detects Hall element 540 when controlling device
When being in predetermined voltage range output voltage stabilization, control device and be then considered the first output
32 are in position rather than the second delivery 34 is in position.When controlling dress
Put output voltage Hall element 540 being detected not in preset range time, then it is assumed that second
Delivery 34 is in position rather than the first delivery 32 is in position.
With reference to Fig. 3, the first delivery 32 is defined as the work that torque suspension actuator 80 affects
Head, this work head can be used for clamping screwdriver cutter 22 and carries out twisting screw；Second delivery 34
Being defined as the work head of not torque suspension actuator 80 impact, this work head is used for clamping drill tool
24 hole.As long as controlling device to identify the delivery type being in position, just
Can send to should the control signal of delivery, control motor 8 and press parameter preset and operate, thus
Power tool 100 is not required to manually regulate, different working modes should be able to be performed quickly.
With reference to shown in Fig. 8, switching device includes that torque controller 80, torque controller 80 wrap
Include the code-disc 70 (seeing Fig. 2) of manual operation, it is at least partially arranged at outside housing 10a,
Torque value needed for being regulated by operator's manual operation.The torque controller of the embodiment of the present invention
80 are arranged at handle 4, and it is outside for manual operation that code-disc 70 part is positioned at handle 4.This
The control device of bright embodiment uses master control borad 56, for receiving what induction pieces 54 sent
The signal of telecommunication.Wherein, master control borad 56 and motor 8, induction pieces 54, torque controller 80 are electrical
Connect.In indexing relative fuselage 10 rotation process of body 30, induction pieces 54 is for noncontact
Ground sensing trigger member 52.When induction pieces 54 senses that trigger member 52 is in default induction zone
During territory, it is judged that the first delivery 32 of torque suspension actuator 80 impact is in position.Instead
It, when induction pieces 54 senses that trigger member 52 is in outside default induction region, then sentence
Second delivery 34 of disconnected not torque suspension actuator 80 impact is in position.
Specifically, when Hall element 540, to sense that magnetic part 522a or 524a is in default
Induction region time, master control borad 56 identifies the first delivery that torque suspension actuator 80 affects
32 are in position, then obtain the state of torque controller 80, and master control borad 56 exports
The corresponding signal of telecommunication controls motor 8.When Hall element 540 sense magnetic part 522a or
When 524a is in outside default induction region, panel 56 thinks not torque suspension actuator 80
Second delivery 34 of impact is in position, and master control borad 56 directly exports corresponding telecommunications
Number control motor 8.Switching device can automatically identify the first delivery being in position
32 or second delivery 34, and send corresponding first delivery the 32, second delivery 34
Control signal.When eliminating different delivery 32,34 conversion to position, required
The applicable different operating modes made adjustment is set, output speed is the most manually set, moment of torsion etc., and
And prevent from forming potential safety hazard because failing to adjust operating mode in time.Switching device can identify automatically
Different deliveries, is controlled by the mode of operation controlling the corresponding different deliveries of device realization, from
And realize the operation intellectuality of power tool 100.
Master control borad 56, during controlling motor 8, detects the operational factor of motor 8 constantly,
Such as in voltage, electric current, speed at least one.And constantly adjust motor 8 control parameter,
So that the work that power tool is under different working modes is more stable, safety.
The torque controller 80 of the embodiment of the present invention can use potentiometer, or encoder.
Induction pieces 54 is noncontacting proximity sensor, and the present embodiment uses Hall element, preferably
For linear hall sensor, trigger member 52 can use magnetic part.Hall element is used for feeling
The magnetic field intensity of magnetropism part and magnetic direction, and the change of magnetic field intensity can be changed into electricity
Signal.
In another kind of interchangeable embodiment, trigger member 52 can use light source, relatively turns
Position body is fixedly installed, and induction pieces 54 uses optical sensor accordingly, is fixedly arranged at housing
In 10a, optical sensor is used for sensing non-contactly the Strength Changes of light, and can be by light intensity
Change changes into the signal of telecommunication.
Wherein, the signal of telecommunication that induction pieces 54 sends is expressed with voltage, it is also possible to be electric current.
The power tool 100 of the embodiment of the present invention is a kind of double end drill gun, the first delivery 32
As electric drill, have and creep into function.Under electric drill mode of operation, master control borad 56 controls this and moves
Power instrument 100 exports constant-torque.Second delivery 34 is used as screwdriver, carries out twisting screw
Work.Under screwdriver mode of operation, master control borad 56 is according to the default torsion of torque controller 80
Square controls its output moment of torsion, say, that by operating the code-disc 70 of torque adjusting device 80,
The size scalable of the moment of torsion output of screwdriver bit.Specifically, operator can be by controlling code-disc
70 make the electric current at motor 8 two ends be increased or decreased in order, thus when realizing screwdriver function pair
Answer the torque value of different gears.
Reference Fig. 9, the operating condition control method of power tool 100, including with following steps:
S110: detection trigger member 52.
S120: send the corresponding signal of telecommunication according to the situation of the trigger member 52 detected.
S130: receive the described signal of telecommunication, controls the mode of operation of power tool 100.
Wherein, the mode of step S110 detection trigger member 52 is detection magnetic field intensity；
The magnetic field intensity detected is converted into by step S120 the voltage signal of correspondence, specifically
Including following state:
When trigger member 52 being detected, send and represent voltage signal trigger member 52 being detected.
When being not detected by trigger member 52, send and represent the voltage signal being not detected by trigger member 52,
I.e. represent that the first delivery 32 or the second delivery 34 are the most in place.
Different according to the quantity that trigger member 52 is arranged, as in Figure 10 for arranging two trigger member
The situation of 52, accordingly, S130 particularly as follows:
Judge whether trigger member 52 is positioned at induction region according to the voltage signal transmitted, i.e. electricity
Whether pressure is in default first voltage range or the second voltage range, thus controls power work
Have 100 correspondences with the mode of operation of the first delivery 32 or the mode of operation of the second delivery 34
Work；Do not have in the second default voltage range without in default first voltage range yet
In, i.e. represent that the first delivery 32 or the second delivery 34 are the most in place.
Step S130 specifically can include following state:
When the first magnetic part 522 being detected, send expression and described first magnetic part 522 detected
Voltage signal, i.e. voltage is in the first predetermined voltage range, thus judges the first delivery
32 is in place.
When the second magnetic part 524 being detected, send expression and described second magnetic part 524 detected
Voltage signal, i.e. voltage is in the second predetermined voltage range, thus judges the first delivery
34 is in place.
Concrete step is to judge to represent whether the voltage signal of magnetic field intensity is in first and presets
In voltage range, if it is, represent that the first delivery 32 is in place, if it is not, examine again
Survey whether this voltage signal is in the second predetermined voltage range, if it is, represent that second is defeated
Lift one's head 34 in place, if it is not, then represent that two deliveries are the most in place.
Figure 11 is the situation of a trigger member 52 is set, accordingly: S130 particularly as follows:
Judge that trigger member 52 is according to the voltage signal that the magnetic field power sensed transmitted is corresponding
No being positioned at induction region, i.e. whether voltage is in default voltage range, if it is, represent
First delivery 32 is in place, if not representing that the second delivery 34 is in place, thus controls dynamic
Power instrument 100 correspondence is with the mode of operation of the first delivery 32 or the work of the second delivery 34
Pattern works.
The operating condition control method of above-mentioned power tool 100, can detect the position of trigger member 52 automatically
Put, send the corresponding signal of telecommunication to controlling device, to control complete machine electric current, thus control this and move
The operating mode of power instrument 100, it is achieved automatically cutting of the different working modes of corresponding different deliveries
Change.
According to the thought of the present invention, this power tool 100 also can realize following mode of operation: bag
Include the first delivery 32 or the second delivery 34 exports impact wrench function, function etc. is bored in impact.
With reference to shown in Figure 12, induction pieces 54 is constantly in detection trigger member 52, and master control borad 56
It is operated under open state, the telecommunications that master control borad 56 sends after sensing according to induction pieces 54
Number judge that trigger member 52, whether in the induction region of induction pieces 54, thus is given tacit consent to, namely
Identify that the first delivery 32 or the second delivery 34 have been in position, no matter output shaft
Whether 14 connect with working shaft 322,342 and to put in place.When master control borad 56 identifies the second output
34 are in position, say, that when power tool is in drill jig formula, master control borad 56
Obtain the parameter preset of this second delivery 34, control motor 8 and press parameter preset operation, i.e.
Control power tool 100 to be operated by drill jig formula；But outside the actual motion of motor 8 is affected by
The impact of portion's operating mode and constantly produce change, therefore, main control 56 can collect horse constantly
Reach the actual operation parameters of 8, and make comparisons with parameter preset, constantly update and send control
Signal controls motor 8.
It is in position, say, that dynamic when master control borad 56 identifies the first delivery 32
When power instrument is in screwdriver pattern, master control borad 56 obtains the default ginseng of this first delivery 32
Number, and obtain torque controller 80 parameter, control power tool 100 and enter by screwdriver pattern
Row work；Same, main control 56 can collect the actual operation parameters of motor 8 constantly, and
Make comparisons with parameter preset, constantly update and send control signal control motor 8.
First delivery the 32, second delivery 34 during conversion work position, as long as
First working shaft 322 of corresponding first delivery 32 couples with output shaft 14, or correspondence the
Second working shaft 324 of two deliveries 34 couples with output shaft 14, as long as power tool one is opened
Machine, main control 56 i.e. can recognize that this is in the delivery of operating position or position, from
And control this delivery and perform corresponding mode of operation.
Other is selectively in embodiment technical scheme, and power tool can arrange the 3rd output
Head, the 4th delivery, or more；To those skilled in the art, in skill of the present invention
Increase the delivery of varying number on the basis of art scheme, also belong to claimed
Technical scheme.
It is the first delivery 32 that the switching device of the present embodiment identifies be positioned at induction region,
I.e. think that it is in position, give tacit consent to current delivery and be in screwdriver mode of operation, master control
The screwdriver cutter 22 being contained in the first delivery 32 is detected by plate 56 in work process
And control, when master control borad 56 detects that the state parameter of motor 8 reaches pre-conditioned or spiral shell
When being pinned to reach certain depth, power tool 100 realizes automatic retarding or shutdown, thus can keep away
The screw exempting to be driven by screwdriver cutter 22 crosses this position after arriving precalculated position further
Put, such that it is able to well perform to tie on work surface the screw of different size.Here institute
The screwdriver cutter 22 referred to is not limiting as its specification and kind.
PCT Patent Application filed in 13 days February in 2008 of applicant
WO2008101408A1, and PCT Patent Application filed in 4 days January in 2010
WO2010075820A1 individually discloses the technical side for realizing automatic retarding or shutdown
Case.Those skilled in the art record according to it and combine the present invention and automatically identify delivery defeated to this
The technical scheme that the operating mode lifted one's head is controlled, defeated to first be under screwdriver mode of operation
Automatically controlling of screw depth is twisted in 32 enforcements of lifting one's head.
Specifically, the motor 8 of power tool 100 for driving the first delivery 32 so that its
There is a rotary speed；Power tool 100 is provided with sensor for measuring expression the first work
The parameter of axle 322 load, controls device for obtaining second dervative or the height of this parameters versus time
Order derivative；Corresponding control signal is generated to change motor according to second dervative or higher derivative
Rotary speed.
One can be in embodiment, and master control borad 56 flows through the electric current of motor 8, inspection for measuring
Survey Current versus time and seek the pulse signal on the curve of second dervative or higher derivative, thus generate
Control signal changes the rotary speed of motor 8.
Induction pieces 54 measures described electric current in continuous print time interval, and wherein master control borad 56 is used
In the first derivative determining Current versus time in each time interval；Relatively two continuous times
The first derivative at interval；And if the first derivative of two continuous time intervals differs, i.e.
Generate control signal.
Master control borad 56 is preset with threshold values, and control signal is only when second dervative or higher derivative
For on the occasion of and numerical value more than pre-set threshold value time just generation.Control signal is used for the second delivery
The rotary speed of 32 is set to a low speed level or zero, and control signal is instant or predetermined
Produce after time delay.
Thus, the first delivery 32 being in screwdriver function can automatically ensure that by screwdriver bit
The screw driven arrives precalculated position, and this screw will not cross this precalculated position further.
For the person of ordinary skill of the art, power tool is being identified in switching device 50
When the current operation mode of 100 is screwdriver function, applicant can be selected to disclose or
Technical scheme disclosed in other prior art realizes automatic retarding or stopping function, these
Broadly fall into protection scope of the present invention.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description letter
Clean, all possible combination of each technical characteristic in above-described embodiment is not all described,
But, as long as the combination of these technical characteristics does not exist contradiction, all it is considered to be this specification
The scope recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and its description more has
Body is with detailed, but can not therefore be construed as limiting the scope of the patent.Should be understood that
, for the person of ordinary skill of the art, in the premise without departing from present inventive concept
Under, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Cause
This, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (28)
1. a power tool, including housing, is arranged at the driving means of housing, Yi Jizhi
Few two deliveries being arranged on being relatively fixed on indexing body, described at least two delivery bag
Include the first delivery for rotary cutter and the second delivery, described first delivery, second
Delivery by described indexing body with swing or plug mode alternately with described driving means
Couple thus be in operating position, it is characterised in that: described power tool also includes switching device,
Described switching device includes:
Trigger member, corresponding described first delivery and/or the second delivery are arranged；
Induction pieces, with described trigger member relative motion, senses described trigger member for non-contactly,
And send the signal of telecommunication according to sensing result；And
Control device, be used for receiving the described signal of telecommunication, and be in work according to described signal of telecommunication identification
Make the delivery of position.
Power tool the most according to claim 1, it is characterised in that described control fills
Put to send according to the described signal of telecommunication and control signal to driving means accordingly, to control described power
Instrument is in different mode of operations.
Power tool the most according to claim 2, it is characterised in that described Working mould
Formula includes described first delivery and one of them execution drill mode of the second delivery.
Power tool the most according to claim 2, it is characterised in that described Working mould
Formula includes described first delivery and one of them execution screwdriver pattern of the second delivery.
Power tool the most according to claim 4, it is characterised in that described switching fills
Putting and also include torque controller, described control device is according to the predetermined torque of described torque controller
Send a control signal to driving means, to control described first delivery and the second delivery wherein
One of moment of torsion output.
Power tool the most according to claim 5, it is characterised in that described torque is adjusted
Joint device includes potentiometer or encoder.
Power tool the most according to claim 1, it is characterised in that described control fills
Put the state parameter according to driving means, control driving means and perform to slow down or shut down.
Power tool the most according to claim 7, it is characterised in that described state is joined
Number includes at least one in electric current, voltage, rotating speed, moment of torsion.
Power tool the most according to claim 1, it is characterised in that described induction pieces
For sensor.
Power tool the most according to claim 9, it is characterised in that described sensor
For linear hall sensor.
11. power tools according to claim 1, it is characterised in that the described signal of telecommunication
For voltage.
12. power tools according to claim 1, it is characterised in that described trigger member
For magnetic part.
13. power tools according to claim 1, it is characterised in that described trigger member
Quantity be one, corresponding first delivery of described trigger member or the second delivery are arranged, described
Control device and judge whether described trigger member is positioned at the sense of described induction pieces according to the described signal of telecommunication
In answering region, thus identify the first delivery and/or the position of the second delivery.
14. power tools according to claim 1, it is characterised in that described trigger member
Quantity be two, the most corresponding first delivery of said two trigger member and the second delivery set
Putting, described control device judges said two trigger member according to the signal of telecommunication that described induction pieces transmits
In an induction region whether being positioned at described induction pieces, thus identify the first delivery and
/ or the position of the second delivery.
15. according to the power tool described in claim 13 or 14, it is characterised in that described
Trigger member is magnetic part, and described induction pieces is linear hall sensor, is used for detecting described magnetic
The change of the magnetic field intensity of part, and the change of described magnetic field intensity is converted into the described signal of telecommunication,
Described control device judges the position of described trigger member according to the described signal of telecommunication, thus identifies described
First delivery and/or and the position of the second delivery.
16. power tools according to claim 1, it is characterised in that described trigger member
Including first magnetic part corresponding with described first delivery and corresponding with described second delivery
The second magnetic part, described first magnetic part is contrary with the polarity arrangement of described second magnetic part,
Described induction pieces is Hall element, for sense described first magnetic part magnetic field intensity and
Polarity of the magnetic field or the magnetic field intensity of described second magnetic part and polarity of the magnetic field, and produce correspondence
The signal of telecommunication is to described control device, and described control device judges described first according to the described signal of telecommunication
Magnetic part and/or the position of described second magnetic part relative induction part, thus identify and be in work
First delivery of position or the second delivery.
17. power tools according to claim 5, it is characterised in that described induction pieces
For sensor, described control device includes and sensor, torque controller and driving means electricity
Property connect master control borad.
The operating condition control method of 18. 1 kinds of power tools, described power tool includes housing, if
Being placed in the driving means of housing, for controlling the trigger of driving means, at least two is relatively fixed
Be arranged on the delivery on indexing body, it is first defeated that described delivery includes for rotary cutter
Lift one's head and the second delivery, described first delivery, the second delivery by described indexing body with
Swing or the mode that plugs alternately couples with described driving means, and switching device, described
Switching device includes: trigger member, and corresponding described first delivery and/or the second delivery are arranged；
Induction pieces, with described trigger member relative motion, is used for sensing described trigger member non-contactly, and
The signal of telecommunication is sent according to sensing result；And control device, it is used for receiving the described signal of telecommunication, and
The delivery being in operating position is identified, it is characterised in that described work according to the described signal of telecommunication
Condition control method includes with following steps:
Start driving means；
Induction pieces sends the signal of telecommunication according to testing result；
Control device according to described signal of telecommunication identification the first delivery and/or the second delivery；
Control device and send control signal, control driving means and perform and the first delivery or second
The mode of operation that delivery is corresponding.
The operating condition control method of 19. power tools according to claim 18, its feature
It is, further comprising the steps of:
Before the control signals are sent, the state parameter of control device acquisition driving means, and with
Parameter preset is made comparisons.
The operating condition control method of 20. power tools according to claim 18, its feature
It is,
The described signal of telecommunication includes representing first signal of telecommunication and the expression described trigger member being detected
It is not detected by second signal of telecommunication of described trigger member, when receiving first signal of telecommunication, represents and trigger
Part is positioned at the detection region of induction pieces；When receiving second signal of telecommunication, represent that trigger member is positioned at
The detection zone of induction pieces is overseas.
The operating condition control method of 21. power tools according to claim 18, its feature exists
In, described trigger member includes the first trigger member and the second trigger member；When the first trigger member being detected,
Send and represent the signal of telecommunication described first trigger member being detected；When the second trigger member being detected, send out
Send and represent the signal of telecommunication described second trigger member being detected.
22. 1 kinds of hand-held tools, including housing, connect the handle of housing, are arranged at housing
Driving means, and be arranged on being relatively fixed indexing body on for the first of rotary cutter
Delivery and the second delivery, described first delivery, the second delivery are by described indexing body
Alternately couple with described driving means with swing or the mode that plugs thus be in operating position,
It is characterized in that: described power tool also includes that switching device, described switching device include:
Trigger member, corresponding described first delivery and/or the second delivery are arranged；
Induction pieces, with described trigger member relative motion, senses described trigger member for non-contactly,
And send the signal of telecommunication according to sensing result；And
Control device, be used for receiving the described signal of telecommunication, and the described signal of telecommunication is judged thus
Identify the delivery being in operating position.
23. power tools according to claim 22, it is characterised in that described sensing
Part is sensor.
24. power tools according to claim 23, it is characterised in that described sensing
Device is linear hall sensor.
25. power tools according to claim 22, it is characterised in that described triggering
Part is magnetic part.
26. power tools according to claim 22, it is characterised in that described triggering
The quantity of part is one, and corresponding first delivery of described trigger member or the second delivery are arranged, institute
State control device and judge whether described trigger member is positioned at described induction pieces according to the described signal of telecommunication
In induction region, thus identify the first delivery and/or the position of the second delivery.
27. power tools according to claim 22, it is characterised in that described triggering
The quantity of part is two, said two trigger member corresponding first delivery and the second delivery respectively
Arrange, according to the signal of telecommunication that described induction pieces transmits, described control device judges that said two triggers
An induction region whether being positioned at described induction pieces in part, thus identify the first delivery
And/or second position of delivery.
28. according to the power tool described in claim 26 or 27, it is characterised in that described
Trigger member is magnetic part, and described induction pieces is linear hall sensor, is used for detecting described magnetic
The change of the magnetic field intensity of part, and the change of described magnetic field intensity is converted into the described signal of telecommunication,
Described control device judges the position of described trigger member according to the described signal of telecommunication, thus identifies described
First delivery and/or and the position of the second delivery.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015101553228 | 2015-04-02 | ||
| CN201510155322 | 2015-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106041836A true CN106041836A (en) | 2016-10-26 |
Family
ID=57004237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610201958.6A Pending CN106041836A (en) | 2015-04-02 | 2016-04-01 | Power tool and working condition control method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106041836A (en) |
| WO (1) | WO2016155663A1 (en) |
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| CN107855763A (en) * | 2017-11-29 | 2018-03-30 | 苏州弘瀚自动化科技有限公司 | A kind of portable lock screw frock |
| CN110496994A (en) * | 2018-05-18 | 2019-11-26 | 宝时得科技（中国）有限公司 | Electric tool |
| CN112137519A (en) * | 2020-10-22 | 2020-12-29 | 深圳市洁傲智能科技有限公司 | Intelligent floor washing machine, rolling brush/brush disc recognition assembly and method |
| CN112690861A (en) * | 2019-10-23 | 2021-04-23 | 苏州英途康医疗科技有限公司 | Medical instrument, working head and clip feeding position identification method |
| CN114074312A (en) * | 2020-08-21 | 2022-02-22 | 南京德朔实业有限公司 | Electric tool |
| CN115225150A (en) * | 2021-04-15 | 2022-10-21 | 南京泉峰科技有限公司 | Multi-head electric tool and working assembly identification method thereof |
| CN115319696A (en) * | 2021-05-11 | 2022-11-11 | 苏州宝时得电动工具有限公司 | Electric tool and control method thereof |
| WO2023237125A1 (en) * | 2022-06-08 | 2023-12-14 | 江苏东成工具科技有限公司 | Electric tool and control method thereof |
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| WO2016155663A1 (en) | 2016-10-06 |
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