CN110270717A - Electric cutting tool - Google Patents
Electric cutting tool Download PDFInfo
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- CN110270717A CN110270717A CN201810214389.8A CN201810214389A CN110270717A CN 110270717 A CN110270717 A CN 110270717A CN 201810214389 A CN201810214389 A CN 201810214389A CN 110270717 A CN110270717 A CN 110270717A
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- Prior art keywords
- electric
- cutting tool
- driving
- cutting part
- cut
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- 230000033001 locomotion Effects 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
- B23D57/02—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws
- B23D57/023—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 with chain saws hand-held or hand-operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
-
- 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
Abstract
This disclosure relates to a kind of electric cutting tool.Comprising: relative position detector, the relative position between cutting part for detecting object and electric cutting tool to be cut；Control assembly generates driving instruction depending on the relative position；Driving device drives cutting part according to driving instruction.According to the electric cutting tool of the embodiment of the present disclosure; the relative position between the cutting part of object and electric cutting tool to be cut can be detected by relative position detector; driving instruction is generated depending on the relative position; and cutting part is driven by driving device according to driving instruction; to accurately detect it is counter kick movement and in time progress it is counter kick protection, improve the safety of electric cutting tool.
Description
Technical field
This disclosure relates to power tools technology field more particularly to a kind of electric cutting tool.
Background technique
Electric tool is using a kind of relatively broad power tool for holding with a hand operation.Electric tool generally comprises biography
Dynamic component (such as reciprocator), Power Component (such as direct current generator or alternating current generator), Power Supply Assembly (such as battery), control
Component (such as switch, motor control, lithium electrical protective device etc.), casing (for coating aforementioned components), and it is set to casing
On grip device (such as handle, auxiliary-handle) etc..Electric tool usually passes through load Power Supply Assembly (such as battery) and provides electricity
Stream, driving Power Component (such as motor) rotation, and then drive work operations head to carry out operation by transmission component.
Operator operate electric cutting tool such as electric chain saw during, the cutting part of electric cutting tool with
Object to be cut be easy to happen when contacting it is counter kick movement, it is injured to may cause operator.In the related art, it is therefore possible to use three
The detection of the components such as axis accelerometer is counter to kick movement, and progress is mechanically counter to kick protection, but the anti-reliability for kicking protected mode is lower.
Summary of the invention
In view of this, can be realized the counter of high reliability the present disclosure proposes a kind of electric cutting tool and kick protection, improve
The safety of electric cutting tool.
According to the one side of the disclosure, a kind of electric cutting tool is provided, comprising:
Relative position detector is opposite between object to be cut and the cutting part of the electric cutting tool for detecting
Position；
Control assembly generates driving instruction depending on that relative position；
Driving device drives the cutting part according to the driving instruction.
In one possible implementation, the control assembly includes:
First judgment module, for depending on that relative position, judging that the position between object and cutting part to be cut is closed
System.
In one possible implementation, the control assembly further include:
First directive generation module, for when in first time threshold, the positional relationship from not in contact with becoming contacting,
Again from contact become not in contact with when, generate the first driving instruction；
The driving device brakes the cutting part according to the first driving instruction.
In one possible implementation, the electric cutting tool further include:
Current detection means, for detecting the electric current of the driving device；
The control assembly is also used to, and depending on that relative position with the electric current, generates the driving instruction.
In one possible implementation, the control assembly further include:
Second judgment module, for judging the electric current for no-load current or load current.
In one possible implementation, the control assembly further include:
Second directive generation module, for when in second time threshold, the positional relationship from not in contact with becoming contacting,
Become again from contact not in contact with and the electric current becomes load current from no-load current, and becomes no-load current from load current
When, generate the second driving instruction；
The driving device brakes the cutting part according to the second driving instruction.
In one possible implementation, the control assembly further include:
Third directive generation module, for object to be cut, and the electricity to be not detected when the relative position detector
When stream is load current, third driving instruction is generated；
The driving device according to the third driving instruction, reduce driving speed or in a pulsed fashion to cutting part into
Row driving.
In one possible implementation, the control assembly further include:
4th directive generation module, for object to be cut, and the electricity to be not detected when the relative position detector
When stream is no-load current, the 4th driving instruction is generated；
The driving device reduces driving speed or brakes the cutting part according to the 4th driving instruction.
In one possible implementation, the positional relationship include object to be cut and the electric cutting tool it
Between distance whether be greater than threshold value；
The control assembly further include:
5th directive generation module, for being greater than first distance threshold value and the electric current when the distance for no-load current
When, generate the 5th driving instruction
The driving device drives cutting part according to the 5th driving instruction, with the first driving speed, and described first drives
Dynamic speed is less than the operating rate of the cutting part.
In one possible implementation, the control assembly further include:
6th directive generation module, for generating the 6th driving when the distance is less than or equal to first distance threshold value
Instruction
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
In one possible implementation, the control assembly further include:
7th directive generation module, for when in third time threshold, the positional relationship from contact become not in contact with,
And electric current generates the 7th driving instruction when becoming no-load current from load current；
The driving device reduces driving speed according to the 7th driving instruction, or brakes the cutting part.
In one possible implementation, the relative position detector includes the first detector and the second detector；
First detector and second detector are located at the cut surface two sides of the cutting part.
In one possible implementation, the electric cutting tool further include:
Motion sensor, for detecting the direction of motion of the cutting part；
Current detection means, for detecting the electric current of driving device,
The control assembly further include:
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and first detector and it is described second detection
When object to be cut is not detected in detector in device, in front of the direction of motion of the cutting part, generates the 8th driving and refer to
It enables,
The driving device reduces driving speed or carries out in a pulsed fashion to cutting part according to the 8th driving instruction
Driving.
In one possible implementation,
The connection of the main body of the cutting part and electric cutting tool；
The relative position detector includes range sensor；
The range sensor is located at the front of the main body, and sensing direction direction is parallel with the length direction of cutting part
Direction.
In one possible implementation, the electric cutting tool is chain saw.
In one possible implementation, the relative position detector is infrared sensor, laser sensor, ultrasound
One of wave sensor and visual sensor are a variety of.
According to the electric cutting tool of various aspects of the present disclosure, can be detected by relative position detector object to be cut with
Relative position between the cutting part of electric cutting tool generates driving instruction depending on the relative position, and logical according to driving instruction
Over-driving device drive cutting part, thus accurately detect it is counter kick movement and in time progress it is counter kick protection, improve electronic cutter
The safety of tool.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the disclosure will become
It is clear.
Detailed description of the invention
Comprising in the description and constituting the attached drawing of part of specification and specification together illustrates the disclosure
Exemplary embodiment, feature and aspect, and for explaining the principles of this disclosure.
Fig. 1 shows a kind of block diagram of electric cutting tool according to one embodiment of the disclosure.
Fig. 2 shows the schematic diagrames according to a kind of electric cutting tool of the disclosure one embodiment.
Fig. 3 a- Fig. 3 e respectively illustrate according to the cutting part of electric cutting tool of one embodiment of the disclosure a kind of with it is to be cut
Cut the schematic diagram of the positional relationship between object.
Fig. 4 shows a kind of block diagram of electric cutting tool according to one embodiment of the disclosure.
Specific embodiment
Various exemplary embodiments, feature and the aspect of the disclosure are described in detail below with reference to attached drawing.It is identical in attached drawing
Appended drawing reference indicate element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings, remove
It non-specifically points out, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, giving numerous details in specific embodiment below to better illustrate the disclosure.
It will be appreciated by those skilled in the art that without certain details, the disclosure equally be can be implemented.In some instances, for
Method, means, element and circuit well known to those skilled in the art are not described in detail, in order to highlight the purport of the disclosure.
Fig. 1 shows a kind of block diagram of electric cutting tool according to one embodiment of the disclosure.Fig. 2 shows according to this public affairs
Open a kind of schematic diagram of electric cutting tool of an embodiment.As shown in Figure 1, the electric cutting tool includes:
Relative position detector 11, for detecting between object 14 to be cut and the cutting part 15 of the electric cutting tool
Relative position；
Control assembly 12 generates driving instruction depending on that relative position；
Driving device 13 drives the cutting part 15 according to the driving instruction.
In accordance with an embodiment of the present disclosure, cutting for object and electric cutting tool to be cut is detected by relative position detector
The relative position between portion is cut, generates driving instruction depending on the relative position, and cut by driving device driving according to driving instruction
Cut portion, thus accurately detect it is counter kick movement and in time progress it is counter kick protection, improve the safety of electric cutting tool.
Fig. 2 shows the schematic diagrames according to a kind of electric cutting tool of the disclosure one embodiment.As shown in Fig. 2, electronic
Cutting tool can have main body 10, and cutting part 15 can be connect with main body 10, and relative position detector 11 may include being located at
The range sensor 111 and 112 of the front of main body 10.The sensing direction of range sensor 111 and 112 can towards with cutting part 15
The parallel direction of length direction, be respectively formed sense wire as shown in Figure 2 (or sensing region) 113 and 114.In this way, when to
Cut object 14 enter sensing region when, range sensor 111 and 112 can sense object 15 to be cut and itself between
Distance, so as to detect the relative position between object 14 and cutting part 15 to be cut.The disclosure detects relative position
The installation site and particular number of device 11 are with no restriction.
In one possible implementation, electric cutting tool may include chain saw, be also possible to other kinds of electricity
Dynamic cutting tool, the disclosure to the concrete type of electric cutting tool with no restriction.
In one possible implementation, relative position detector is infrared sensor, laser sensor, ultrasonic wave biography
One of sensor and visual sensor are a variety of.The disclosure does not limit the concrete type and distance measuring method of position detector
System.
In one possible implementation, which further includes the control assembly 12 of installation in the main body 10 and driving dress
Set 13.Wherein, control assembly 12 can be realized by special hardware circuit, can also by general procedure hardware (such as CPU,
Single-chip microcontroller, field programmable logic device FPGA etc.) combine executable logical order to realize, to execute the work of control assembly 12
Process, wherein executable logical order can be realized based on prior art means.
In one possible implementation, control assembly 12 can be according to the phase between object 14 to be cut and cutting part 15
To position, driving instruction is generated；Driving device 13 can drive cutting part 15 according to driving instruction.
Fig. 3 a- Fig. 3 e respectively illustrate according to the cutting part of electric cutting tool of one embodiment of the disclosure a kind of with it is to be cut
Cut the schematic diagram of the positional relationship between object.
In one possible implementation, control assembly 12 can include:
First judgment module, for depending on the relative position, judging that the position between object 14 and cutting part 15 to be cut is closed
System.
For example, control assembly 12 can be judged depending on the relative position object 14 to be cut by first judgment module and be cut
Cut the positional relationship between portion 15.Wherein it is possible to be preset with first distance threshold value L, such as can be by range sensor 111
It is set as first distance threshold value L with the horizontal distance of 112 sensing the feedback of position to the front end of cutting part 15.Work as range sensor
111 and 112 are not detected object 14 (as shown in Figure 2) to be cut；Or one in range sensor 111 and 112 does not detect
To object 14 to be cut, another detects that object 14 to be cut is greater than first distance threshold value L with sensing the feedback of position distance；Or distance
Sensor 111 and 112 detects that object 14 to be cut is greater than first distance threshold value L (such as Fig. 3 a institute at a distance from sensing the feedback of position
Show) when, it can be determined that positional relationship is object 14 to be cut not in contact with cutting part 15.
When one in range sensor 111 and 112 detects object 14 to be cut with sensing the feedback of position distance less than first
Distance threshold L, another is not detected object 14 (as shown in Figure 3b) to be cut or detects object 14 to be cut and sensing position
When setting distance greater than first distance threshold value L, it can be determined that positional relationship is that object 14 to be cut contacts cutting part 15.
In one possible implementation, the control assembly further include:
First directive generation module, for when in first time threshold, the positional relationship from not in contact with becoming contacting,
Again from contact become not in contact with when, generate the first driving instruction；
The driving device brakes the cutting part according to the first driving instruction.
For example, if within the short time (first time threshold), the position of object 14 to be cut and cutting part 15 is closed
System becomes from not in contact with becoming contacting, and from contact not in contact with it may be considered that electric cutting tool has occurred and counter kicks movement, need
It is counter to be kicked protection.
In this case, the first driving instruction can be generated in the first directive generation module of control assembly, and driving device can
According to the first driving instruction, brake cutting part, to avoid damaging operator.The first time threshold can be set
It is set to such as 2s.It should be appreciated that the first time threshold may be set according to actual conditions, the disclosure to this with no restriction.
Fig. 4 shows a kind of block diagram of electric cutting tool according to one embodiment of the disclosure.As shown in figure 4, in one kind
In possible implementation, which may also include that
Current detection means 16, for detecting the electric current of the driving device；
The control assembly 12 is also used to, and depending on that relative position with the electric current, generates the driving instruction.
In one possible implementation, control assembly further include: the second judgment module, for judging that the electric current is
No-load current or load current.
For example, which may also include current detection means 16, which can connect
It is connected to driving device 13, to detect the electric current of driving device 13.Wherein, control assembly can be judged by the second judgment module
The electric current of driving device 13 is no-load current or load current.When the cutting part 15 of electric cutting tool is not in contact with object to be cut
When 14, the power of driving device 13 is smaller, and the no-load current of driving device 13 is also smaller；When the cutting part for working as electric cutting tool
15 contact and when cutting object 14 to be cut, and the power of driving device 13 is larger, and the load current of driving device 13 is also larger.From
And the second judgment module can be no-load current or load current according to the electric current of curent change situation judging-driving unit 13.
In one possible implementation, the control assembly may also include that
Second directive generation module, for when in second time threshold, the positional relationship from not in contact with becoming contacting,
Become again from contact not in contact with and the electric current becomes load current from no-load current, and becomes no-load current from load current
When, generate the second driving instruction；The driving device brakes the cutting part according to the second driving instruction.
For example, if within the short time (second time threshold), the position of object 14 to be cut and cutting part 15 is closed
System becomes from not in contact with becoming contacting, and from contact not in contact with and the electric current of driving device 13 is become loading from no-load current
Electric current, and no-load current is become from load current, it may be considered that electric cutting tool have occurred it is counter kick movement, need to carry out anti-
Kick protection.
In this case, the second driving instruction can be generated in the second directive generation module of control assembly, and driving device can
According to the second driving instruction, brake cutting part, to avoid damaging operator.The second time threshold can be set
It is set to such as 2s.It should be appreciated that the second time threshold may be set according to actual conditions, the value of the second time threshold can
With identical or different with the value of first time threshold, the disclosure to this with no restriction.
In one possible implementation, the positional relationship includes between object and electric cutting tool to be cut
Whether distance is greater than threshold value；
The control assembly further include:
5th directive generation module, for being greater than first distance threshold value and the electric current when the distance for no-load current
When, generate the 5th driving instruction
The driving device drives cutting part according to the 5th driving instruction, with the first driving speed, and described first drives
Dynamic speed is less than the operating rate of the cutting part.
For example, when operator prepares to cut object 14 to be cut, electric cutting tool, driving dress be can star
Set the rotation of 13 driving cutting parts 15.It is greater than first at a distance between cutting part 15 of the object 14 to be cut with electric cutting tool
Distance threshold (as shown in Figure 3a), and the electric current of driving device 13 be no-load current when, it can be determined that cutting part 15 not in contact with to
Cut object 14.
In this case, control assembly can generate the 5th driving instruction by the 5th directive generation module, and driving device can
According to the 5th driving instruction, cutting part 15 is driven to be less than the first driving speed of operating rate of the cutting part.Pass through this
Kind mode, can make 15 low speed of cutting part run, to reduce power, extend the use of the battery pack of electric cutting tool
Time.It should be appreciated that the first driving speed can be set as the arbitrary speed of the operating rate less than cutting part, the disclosure is to the
The specific value of one driving speed is with no restriction.
In one possible implementation, the control assembly further include: the 6th directive generation module, for when described
When distance is less than or equal to first distance threshold value, the 6th driving instruction is generated；
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
For example, when operator's operation electric cutting tool starts to cut object 14 to be cut, 15 meeting of cutting part
It contacts and cuts object 14 to be cut.If the distance between object 14 to be cut and cutting part 15 are less than or equal to first distance
Threshold value (as shown in Figure 3c), and the electric current of driving device 13 becomes load current from no-load current, then may determine that cutting part 15
Start to contact and cut object 14 to be cut.Control assembly can generate the 6th driving instruction by the 6th directive generation module.It drives
Dynamic device 13 can drive cutting part according to the 6th driving instruction with operating rate, that is, driving cutting part 15 is run at high speed.
In this way, the cutting part high-speed cruising of electric cutting tool can be made to cut object 14 to be cut.
In one possible implementation, the control assembly further include:
Third directive generation module, for object to be cut, and the electricity to be not detected when the relative position detector
When stream is load current, third driving instruction is generated；
The driving device according to the third driving instruction, reduce driving speed or in a pulsed fashion to cutting part into
Row driving.
For example, electric cutting tool is operated in operator cut 14 period of object to be cut, relative position detection
Device can be with the distance between constant testing object 14 to be cut and cutting part 15.If relative position detector is not detected to be cut
Object is cut, and the electric current is load current, then can determine whether that object 14 to be cut will be cut off (such as shown in Fig. 3 d).
In this case, control assembly 12 can generate third driving instruction by third directive generation module.Driving device
13 according to third driving instruction, can reduce the driving speed of cutting part or drive in a pulsed fashion to cutting part.Pass through this
Kind of mode can make electric cutting tool fall-back or transport in a pulsed fashion when object 14 to be cut will be cut off
Row, to improve the safety of electric cutting tool.
In one possible implementation, the control assembly further include:
4th directive generation module, for object to be cut, and the electricity to be not detected when the relative position detector
When stream is no-load current, the 4th driving instruction is generated；
The driving device reduces driving speed or brakes the cutting part according to the 4th driving instruction.
For example, electric cutting tool is operated in operator and cut 14 period of object to be cut, if relative position
Object to be cut is not detected in detector, and the electric current of driving device 13 is no-load current, then can determine whether object 14 to be cut
It is cut off (such as shown in Fig. 3 e).
In this case, control assembly 12 can generate the 4th driving instruction by the 4th directive generation module.Driving device
13 according to the 4th driving instruction, can reduce the driving speed of cutting part 15 or brake cutting part 15.In this way, may be used
So that electric cutting tool fall-back or braking when object 14 to be cut has been turned off, to improve electric cutting tool
Safety.
In one possible implementation, the control assembly further include: the control assembly further include:
7th directive generation module, for when in third time threshold, the positional relationship from contact become not in contact with,
And electric current generates the 7th driving instruction when becoming no-load current from load current；
The driving device reduces driving speed according to the 7th driving instruction, or brakes the cutting part.
For example, after operator's operation electric cutting tool completes the cutting of object 14 to be cut, electronic cutting
Tool is far from the object cut.If between object 14 to be cut and cutting part 15 positional relationship from contact become not in contact with,
And the electric current of driving device 13 becomes no-load current from load current, then may determine that object 14 to be cut has cut completion (example
As shown in Figure 3 e).
In this case, control assembly 12 can generate the 4th driving instruction by the 7th directive generation module.Driving device
13 according to the 4th driving instruction, can reduce the driving speed of cutting part 15 or brake cutting part 15.In this way, may be used
So that electric cutting tool fall-back or braking when object 14 to be cut has been turned off, to improve electric cutting tool
Safety.
As shown in figure 4, in one possible implementation, which may also include that
Motion sensor 17, for detecting the direction of motion of the cutting part；
Current detection means 16, for detecting the electric current of the driving device,
The control assembly 12 further include:
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and first detector and it is described second detection
When object to be cut is not detected in detector in device, in front of the direction of motion of the cutting part, generates the 8th driving and refer to
It enables,
The driving device reduces driving speed or carries out in a pulsed fashion to cutting part according to the 8th driving instruction
Driving.
In one possible implementation, the relative position detector includes the first detector and the second detector,
First detector and the second detector are located at the cut surface two sides of cutting part.
For example, motion sensor 17 can be in the main body of electric cutting tool or on cutting part, cut for detecting
Cut the direction of motion in portion；Current detection means 16 may be connected to driving device 13, to detect the electric current of driving device 13；Relatively
Position detector 11 may include positioned at the first detector of the cut surface two sides of cutting part and the second detector (such as shown in Fig. 2
Range sensor 111 and 112), sensing direction can be towards the direction parallel with the length direction of cutting part.
In one possible implementation, control assembly 12 can pass through the electricity of the second judgment module judging-driving unit 13
Stream is load current or no-load current.If the electric current of driving device 13 is load current, and first detector and described
It, then can be with when object to be cut is not detected in detector in second detector, in front of the direction of motion of the cutting part
Judge that object 14 to be cut will be cut off (such as shown in Fig. 3 d).In this case, control assembly 12 can pass through the 8th instruction
Generation module generates the 8th driving instruction.Driving device 13 can according to the 8th driving instruction, reduce cutting part driving speed or with
Pulse mode drives cutting part.
In this way, can make electric cutting tool when object 14 to be cut will be cut off fall-back or
It runs in a pulsed fashion, to improve the safety of electric cutting tool.
According to the electric cutting tool of the embodiment of the present disclosure, can be detected by relative position detector object to be cut with
Relative position between the cutting part of electric cutting tool generates driving instruction depending on the relative position, and logical according to driving instruction
Over-driving device drives cutting part, thus electric cutting tool is counter kick when issue signal in time and brake in time, realize and counter kick guarantor
Shield, improves the safety of electric cutting tool；It single packet time that battery pack can be extended by intelligent speed-regulating, increases electronic
Cutting tool uses the working time；/ the pulse cutting that slows down can be carried out before material to be cut body is cut off, subtracted after severance
Speed/stopping cutting, to realize the safeguard protection in cutting and after cutting.
The presently disclosed embodiments is described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.The selection of term used herein, purport
In the principle, practical application or technological improvement to the technology in market for best explaining each embodiment, or lead this technology
Other those of ordinary skill in domain can understand each embodiment disclosed herein.
Claims (16)
1. a kind of electric cutting tool characterized by comprising
Relative position detector, for detecting the opposite position between object to be cut and the cutting part of the electric cutting tool
It sets；
Control assembly generates driving instruction depending on that relative position；
Driving device drives the cutting part according to the driving instruction.
2. electric cutting tool according to claim 1, which is characterized in that the control assembly includes:
First judgment module, for depending on that relative position, judging the positional relationship between object and cutting part to be cut.
3. electric cutting tool according to claim 2, which is characterized in that the control assembly further include:
First directive generation module, for when in first time threshold, the positional relationship from not in contact with becoming contacting, and by
Contact become not in contact with when, generate the first driving instruction；
The driving device brakes the cutting part according to the first driving instruction.
4. electric cutting tool according to claim 2, which is characterized in that further include:
Current detection means, for detecting the electric current of the driving device；
The control assembly is also used to, and depending on that relative position with the electric current, generates the driving instruction.
5. electric cutting tool according to claim 4, which is characterized in that the control assembly further include:
Second judgment module, for judging the electric current for no-load current or load current.
6. electric cutting tool according to claim 5, which is characterized in that the control assembly further include:
Second directive generation module, for when in second time threshold, the positional relationship from not in contact with becoming contacting, and by
Contact becomes not in contact with and the electric current becomes load current from no-load current, and when becoming no-load current from load current, raw
At the second driving instruction；
The driving device brakes the cutting part according to the second driving instruction.
7. electric cutting tool according to claim 5, which is characterized in that the control assembly further include:
Third directive generation module, for object to be cut to be not detected when the relative position detector, and the electric current is
When load current, third driving instruction is generated；
The driving device reduces driving speed or drives in a pulsed fashion to cutting part according to the third driving instruction
It is dynamic.
8. electric cutting tool according to claim 5, which is characterized in that the control assembly further include:
4th directive generation module, for object to be cut to be not detected when the relative position detector, and the electric current is
When no-load current, the 4th driving instruction is generated；
The driving device reduces driving speed or brakes the cutting part according to the 4th driving instruction.
9. electric cutting tool according to claim 5, which is characterized in that the positional relationship include object to be cut with
Whether the distance between described electric cutting tool is greater than threshold value；
The control assembly further include:
5th directive generation module is used for when the distance is greater than first distance threshold value and the electric current is no-load current, raw
At the 5th driving instruction
The driving device drives cutting part, the first driving speed according to the 5th driving instruction, with the first driving speed
Degree is less than the operating rate of the cutting part.
10. electric cutting tool according to claim 9, which is characterized in that the control assembly further include:
6th directive generation module, for generating the 6th driving instruction when the distance is less than or equal to first distance threshold value；
The driving device drives cutting part according to the 6th driving instruction, with operating rate.
11. electric cutting tool according to claim 5, which is characterized in that the control assembly further include:
7th directive generation module, for when in third time threshold, the positional relationship from contact become not in contact with and electricity
When stream becomes no-load current from load current, the 7th driving instruction is generated；
The driving device reduces driving speed according to the 7th driving instruction, or brakes the cutting part.
12. electric cutting tool according to claim 1, which is characterized in that the relative position detector includes first
Detector and the second detector,
First detector and second detector are located at the cut surface two sides of the cutting part.
13. electric cutting tool according to claim 12, which is characterized in that further include:
Motion sensor, for detecting the direction of motion of the cutting part；
Current detection means, for detecting the electric current of driving device,
The control assembly further include:
Second judgment module, for judging the electric current for load current or no-load current；
8th directive generation module, when the electric current be load current, and in first detector and second detector,
When object to be cut is not detected in detector in front of the direction of motion of the cutting part, the 8th driving instruction is generated,
The driving device reduces driving speed or drives in a pulsed fashion to cutting part according to the 8th driving instruction
It is dynamic.
14. electric cutting tool according to claim 1, which is characterized in that
The connection of the main body of the cutting part and electric cutting tool；
The relative position detector includes range sensor；
The range sensor is located at the front of the main body, the sensing direction direction side parallel with the length direction of cutting part
To.
15. any one of according to claim 1~14 electric cutting tool, which is characterized in that the electric cutting tool is
Chain saw.
16. described in any item electric cutting tools according to claim 1~14, which is characterized in that the relative position detection
Device is one of infrared sensor, laser sensor, ultrasonic sensor and visual sensor or a variety of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214389.8A CN110270717A (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810214389.8A CN110270717A (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110270717A true CN110270717A (en) | 2019-09-24 |
Family
ID=67957654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810214389.8A Pending CN110270717A (en) | 2018-03-15 | 2018-03-15 | Electric cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110270717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113211554A (en) * | 2021-04-16 | 2021-08-06 | 江苏东成工具科技有限公司 | Electric tool and rotation speed control method thereof |
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