CN109590545A - Clamping device for clamping working accessory and electric tool - Google Patents
Clamping device for clamping working accessory and electric tool Download PDFInfo
- Publication number
- CN109590545A CN109590545A CN201710919576.1A CN201710919576A CN109590545A CN 109590545 A CN109590545 A CN 109590545A CN 201710919576 A CN201710919576 A CN 201710919576A CN 109590545 A CN109590545 A CN 109590545A
- Authority
- CN
- China
- Prior art keywords
- working accessory
- locking system
- clamping
- clamping device
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
- B23D49/16—Hand-held or hand-operated sawing devices with straight saw blades actuated by electric or magnetic power or prime movers
-
- 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
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/10—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for hand-held or hand-operated devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
- Sawing (AREA)
Abstract
The invention discloses a clamping device for clamping a working accessory and an electric tool, wherein the clamping device comprises: the device comprises a device body, a locking system and an operating piece; the device body is formed with a chamber for accommodating at least part of the working accessory, the locking system has at least a locking state for locking the working accessory to the device body and a releasing state for releasing the working accessory to allow the working accessory to be disengaged from the device body, and the operating member drives the locking system to be switched from the locking state to the releasing state when being operated by a user; wherein the working attachment is itself capable of applying a trigger force to the locking system upon insertion of the working attachment into the chamber to actuate the locking system from the released state to the locked state. The clamping device enables a user to conveniently and quickly mount the working accessory to the electric tool.
Description
Technical field
The present invention relates to a kind of electric tools, and in particular to the clamping device of electric tool.
Background technique
The electric tool of such as sweep-saw one kind usually requires installation saw blade and carries out cutting operation, therefore sweep-saw to workpiece
Need to be equipped with one for clamping the clamping device of saw blade.But the structure of existing clamping device is more complicated, user needs
Both hands operate or need two-step action that can dismount saw blade.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of user-friendly for clamping work
Make the clamping device and electric tool of attachment.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
It is a kind of for clamping the clamping device of working accessory, comprising: device noumenon, locking system and operating parts；Device noumenon shape
Cheng Youyi are used to accommodate the chamber of at least partly working accessory, and locking system, which at least has, is locked to device sheet for working accessory
The lock state of body allows the release conditions of working accessory release unit ontology with release working accessory, and operating parts is by user
Locking system is driven to switch to release conditions by lock state when operation；Wherein, the working accessory when working accessory is inserted into chamber
Itself can apply the trigger force that a driving locking system is switched to lock state by release conditions to locking system.
Further, locking system includes: actuator, and actuator switches to release conditions by lock state in locking system
When apply one to working accessory and make working accessory that there is the driving force of trend being ejected.
Further, locking system includes: actuator, the pop-up when locking system switches to release conditions by lock state
Working accessory.
Further, locking system includes: locking piece and hole, and it is attached that locking piece locks work when contacting with working accessory
Part, hole include the first hole wall portion for receiving locking piece；When locking system is in the lock state, locking piece be in simultaneously with
The first position of working accessory and the contact of the first hole wall portion.
Further, hole further includes the second hole wall portion for receiving locking piece；When locking system is in release conditions,
Locking piece is in the second position contacted with the second hole wall portion；Second hole wall portion is recessed with respect to the first hole wall portion.
Further, hole further includes for connecting the first hole wall portion and the second hole wall portion and making both in junction
Form the interconnecting piece of step.
Further, locking system includes: actuator, and actuator is included in locking system and switches to release by lock state
Apply first driving portion for being used for ejecting the driving force of working accessory to working accessory when state；Actuator further include:
Driving locking piece is moved to the second driving portion of first position by the second position when working accessory applies trigger force to locking system.
Further, actuator and device noumenon are constituted using first axle as the rotation connection of axis；First driving portion and
Two driving parts are in the two sides of a plane by first axle.
Further, locking system further include: biased element；Biased element generates a bias locking piece by the second position
The biasing force moved to first position.
A kind of electric tool, comprising: casing, motor and output, motor are arranged in casing, and output is driven by a motor
With output power；Electric tool further includes above-mentioned for clamping the clamping device of working accessory；Clamping device is connected to output
Part.
The invention has the beneficial effects that: user can conveniently complete the dismounting of working accessory.
Detailed description of the invention
Fig. 1 is the plane of sweep-saw of the invention；
Fig. 2 is plan view of the clamping device when saw blade is locked to device noumenon in Fig. 1；
Fig. 3 is the right view of structure shown in Fig. 2；
Fig. 4 is cross-sectional view of the structure shown in Fig. 3 along line A-A；
Fig. 5 is the explosive view of structure shown in Fig. 2；
Fig. 6 is the plan view of structure shown in Fig. 5；
Fig. 7 is plan view of the clamping device when saw blade is not inserted into device noumenon in Fig. 1；
Fig. 8 is the right view of structure shown in Fig. 7；
Fig. 9 is cross-sectional view of the structure shown in Fig. 8 along line B-B；
Figure 10 is clamping device in Fig. 1 in saw blade insertion apparatus ontology and right view when not contacting with actuator also；
Figure 11 is cross-sectional view of the structure shown in Figure 10 along line C-C；
Figure 12 is clamping device in Fig. 1 in saw blade insertion apparatus ontology and right view when contacting with actuator；
Figure 13 is cross-sectional view of the structure shown in Figure 12 along line D-D.
Specific embodiment
By one working accessory of connection to realize its instrumental function, which also wraps electric tool shown in FIG. 1
It includes for the output of output power and the clamping device 20 for working accessory to be connected to output.In the present embodiment,
The electric tool is specially a kind of sweep-saw 100, and for the sweep-saw 100 of the present embodiment, which specifically can be with
For a saw blade 14.
As shown in Figure 1, the sweep-saw 100 includes: casing 11, motor 12, reciprocating lever 13 and clamping device 20, wherein horse
It is arranged in casing 11 up to 12, clamping device 20 is for clamping saw blade 14.
It should be understood that in the present embodiment, electric tool is by taking sweep-saw 100 as an example, as long as in fact, the tool needs
Protection model of the invention is belonged to clamp a working accessory with substantially identical clamping device 20 of the invention using one
It encloses.
Motor 12 is specifically as follows motor, and motor 12 can drive reciprocating lever 13 to move back and forth.Reciprocating lever 13 is along first straight line
101 directions extend.Clamping device 20 is connected on reciprocating lever 13.
As shown in Figures 1 to 6, clamping device 20 includes: device noumenon 21, locking system 22 and operating parts 23.Wherein, it fills
Ontology 21 is set for clamping device 20 to be fixedly attached to reciprocating lever 13, locking system 22 is used to saw blade 14 being locked to device sheet
Body 21, operating parts 23 are used for for user's operation.
Device noumenon 21 is also formed with a chamber 211, which can be unlimited.When the installation of saw blade 14 to folder
When holding device 20,14 a part of saw blade is accommodated in chamber 211.
Locking system 22 has lock state as shown in Figure 2 and release conditions as shown in Figure 7.At locking system 22
When lock state, saw blade 14 is locked to device noumenon 21；When locking system 22 is in release conditions, saw blade 14 can be detached from
Device noumenon 21 or insertion apparatus ontology 21.Operating parts 23 is used for for user's operation to drive locking system 22 by lock state
Switch to release conditions.When saw blade 14 is inserted into chamber 211, saw blade 14 itself can apply a driving locking to locking system 22
System 22 is switched to the trigger force of lock state by release conditions.In this way, user only needs a hand to hold saw blade 14 and will saw
Piece 14 is inserted into the chamber 211 of device noumenon 21 installation that can complete saw blade 14, removes operation operating parts without a hand
23, the other hand removes operation saw blade 14, the installation of saw blade 14 can be completed so as to one-handed performance, and then improve operation just
Victory.
As shown in Fig. 2 to Figure 13, locking system 22 includes: locking piece 221, actuator 222 and biased element 223.Wherein,
Locking piece 221 is flexibly connected with the composition of device noumenon 21, and locking piece 221 can be moved to locking when opposite sets ontology 21 moves
The first position of saw blade 14 and the second position of release saw blade 14.As shown in Figures 2 to 6, when locking piece 221 is in first position
When, locking piece 221 contacts with saw blade 14 and locks the position of 14 opposite sets ontology 21 of saw blade.Actuator 222 is in locking system
22, which switch to release conditions Shi Nengxiang saw blade 14 by lock state, applies a driving force, which can make saw blade 14 have
The trend being ejected or even the driving force can directly pop up saw blade 14.In this way, when user needs to dismantle saw blade 14, for only
One-handed performance operating parts 23 is needed, saw blade 14 can operate operating parts 23, another without one hand of user by automatic spring
Hand-lifting goes out saw blade 14, to facilitate the operation of user.223 bias locking piece 221 of biased element makes locking piece to generate one
221 biasing forces moved from the second position to first position.
Specifically, device noumenon 21 has been thought of as hole 212,212 connecting chamber 211 of hole, the perforation direction in hole 212 perpendicular to
First straight line 101.The hole 212 substantially waist-shaped hole 212.The extending direction of waist-shaped hole 212 and perforation direction are substantially vertical.Hole
212 further include the first hole wall portion 212a, the second hole wall portion 212b and interconnecting piece 212c in their extension direction.First hole wall portion
212a is for receiving locking piece 221 and locking piece 221 being made to be now in first position, in other words, when locking piece 221 is in
When first position, locking piece 221 is contacted with the first hole wall portion 212a.As shown in Fig. 6 and Fig. 9, the second hole wall portion 212b is for connecing
It receives locking piece 221 and locking piece 221 is made to be now in the second position, in other words, when locking piece 221 is in the second position
When, locking piece 221 is contacted with the second hole wall portion 212b.Interconnecting piece 212c connection the first hole wall portion 212a and the second hole wall portion 212b
And 212 wall of the first hole and with the second hole wall portion 212b junction formed step 212d so that the second hole wall portion 212b phase
It is recessed to the first hole wall portion 212a.In the present embodiment, saw blade 14 has a contact plane for contacting with locking piece 221
141, the first hole wall portion 212a extends along a plane, where the plane and the first hole wall portion 212a where contact plane 141
Plane is crossed to form an angle more than or equal to 10 degree and is less than or equal to 20 degree of angle, thus work as locking piece 221 respectively with connect
Touching plane 141 and 212 wall of the first hole form self-locking structure when contacting.
Locking piece 221 is a pin, and pin extends along 102 direction of second straight line, and pin is further cylinder.The extension side of pin
The perforation direction of Xiang Yukong 212 is consistent.The a part sold across hole 212 and pin is arranged in hole 212, can be along hole to sell
212 extending direction is moved to first position and the second position.When pin along the extending direction in hole 212 by first position towards the
When two positions are mobile, when pin is moved at the second hole wall portion 212b by the limit that will receive step 212d so as to preventing to sell
It is moved towards first position, pin can be maintained at the second position at this time, so that locking system 22 is in release conditions at this time.
Actuator 222 includes: the first driving portion 222a and the second driving portion 222b.First driving portion 222a can be in locking system
Apply driving force to saw blade 14 when system 22 switches to release conditions from lock state, which makes saw blade 14 be ejected device
Ontology 21.Second driving portion 222b is used to drive locking piece 221 by second when saw blade 14 applies trigger force to locking system 22
Position moves to first position, so that locking piece 221 locks the position of 14 opposite sets ontology 21 of saw blade.In the present embodiment
In, when saw blade 14 is inserted into device noumenon 21, saw blade 14 can be applied directly to the trigger force that locking system 22 applies
Two driving portion 222b.
Specifically, actuator 222 further includes shaft 222c, actuator 222 passes through shaft 222c and device noumenon
21 compositions are the rotation connection of axis with first axle 103.The first axle 103 of 222 opposite sets ontology 21 of actuator rotation is also
It is vertical with the first straight line 101 that reciprocating lever 13 extends.First driving portion 222a and the second driving portion 222b setting is passed through at one
The two sides of the plane of first axle 103.The position that saw blade 14 is contacted with the first driving portion 222a is arranged in the first driving portion 222a
And second between driving portion 222b, locking piece 221 is also generally disposed between the first driving portion 222a and the second driving portion 222b.
In this way, actuator 222 will be axis rotation with first axle 103 when saw blade 14 applies trigger force to the first driving portion 222a,
At this moment the second driving portion 222b will be contacted with the locking piece 221 for being located at the second position and be applied driving force, the driving force to it
Driving locking piece 221 crosses step 212d and is moved to the first hole wall portion 212a, so that locking piece 221 locks 14 opposite sets of saw blade
The position of ontology 21；And locking piece 221 is from first position to the second position when moving, when locking piece 221 is moved to step 212d
When place, the position moment of locking piece 221 changes, and locking piece 221 is moved at 212 wall of the second hole, at this moment locking piece 221 with
Second driving portion 222b contact simultaneously applies driving force to the second driving portion 222b, and at this moment actuator 222 is axis with first axle 103
At this moment rotation, the first driving portion 222a will apply a driving force that saw blade 14 is ejected to saw blade 14.
Biased element 223 is specifically as follows torsional spring, and two walls of torsional spring can be respectively connected to ontology and locking in device
Part 221.When 221 driven member 222 of locking piece drives the limit for being detached from step 212d to it, at this moment torsional spring can be biased locking
Part 221 makes locking piece 221 be reset to first position, to lock the position of saw blade 14.
Operating parts 23 and device noumenon 21 are constituted with the rotation connection of second axis 104,23 opposite sets ontology 21 of operating parts
The second axis 104 of rotation can be parallel with first axle 103.When user's operation operating parts 23, operating parts 23 can be with locking
Part 221 contacts and can drive locking piece 221 that the bias of biased element 223 is overcome to be moved by first position towards the second position.
Clamping device 20 of the invention is introduced in detail below, 14 working principle of saw blade and the course of work are installed: first such as Fig. 7
To shown in Fig. 9, saw blade 14 at this time is not mounted to clamping device 20, and at this moment, locking system 22 is in release conditions, locking
Part 221 is in the second position, and the bias that locking piece 221 at this moment is also biased element 223, which has towards first position, to be moved
Trend, but locking piece 221 because by step 212d limit and be maintained at the second position and with the second hole wall portion 212b
Contact.Then, as shown in Figure 10 to Figure 11, user's operation saw blade 14 is inserted into device noumenon 21, at this moment saw blade 14 not yet with
Actuator 222 contacts, therefore locking system 22 at this moment is still in release conditions.Subsequently, user's operation saw blade 14 continues
Towards 21 internal motion of device noumenon until moving to the position as shown in Figure 12 and Figure 13 contacted with actuator 222, at this moment,
Saw blade 14 applies trigger force to the first driving portion 222a, which makes 222 opposite sets ontology 21 of actuator with first axle
Line 103 is arrow direction rotation of the axis in Figure 13, and at this moment the second driving portion 222b drives locking piece 221 to be detached from the second hole wall portion
212b simultaneously crosses limit of the step 212d to it.Finally, locking piece 221 is reset to Fig. 4 under the biasing force of biased element 223
Shown in first position, thus locking piece 221 simultaneously contacted with the contact plane 141 of saw blade 14 and the first hole wall portion 212a,
Locking system 22 is in the lock state, and then the position of saw blade 14 is locked.
It introduces in detail below and dismantles 14 working principle of saw blade and the course of work from clamping device 20: firstly, such as Fig. 2 to figure
Shown in 4, at this time locking system 22 lock 14 opposite sets ontology 21 of saw blade position, at this moment, locking piece 221 simultaneously with saw blade 14
Contact plane 141 and 212 wall of the first hole contact.Then, user rotates operating parts 23 and moves to Fig. 7 institute in position as shown in Figure 2
Show position, at this moment, as shown in Figure 7 to 9, operating parts 23 drives locking piece 221 to overcome the bias of biased element 223 by first
Set to the second position and move, when locking piece 221 is moved at step 212d, the position of locking piece 221 mutate to
Second driving portion 222b applies driving force and 222 moment of actuator is made to rotate certain angle, and at this moment the first driving portion 222a will
A driving force for making saw blade 14 be ejected device noumenon 21 can be applied to saw blade 14.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (10)
1. a kind of for clamping the clamping device of working accessory, comprising:
Device noumenon is formed with one for accommodating the chamber of at least partly described working accessory；
Locking system at least has and the working accessory is locked to the lock state of described device ontology and discharges the work
Attachment is to allow the working accessory to be detached from the release conditions of described device ontology；
Operating parts drives the locking system to switch to the release conditions by the lock state when being user-operably；
Wherein, when the working accessory is inserted into the chamber, the working accessory itself can apply one to the locking system
The locking system is driven to switch to the trigger force of the lock state by the release conditions.
2. according to claim 1 for clamping the clamping device of working accessory, it is characterised in that:
The locking system includes:
Actuator applies when the locking system switches to the release conditions from the lock state to the working accessory
One driving force for making the working accessory that there is the trend being ejected.
3. according to claim 1 for clamping the clamping device of working accessory, it is characterised in that:
The locking system includes:
Actuator pops up the working accessory when the locking system switches to the release conditions by the lock state.
4. according to claim 1 for clamping the clamping device of working accessory, it is characterised in that:
The locking system includes:
Locking piece locks the working accessory when contacting with the working accessory；
Hole, including the first hole wall portion for receiving the locking piece；
When the locking system is in the lock state, the locking piece be in simultaneously with the working accessory and described the
The first position of one hole wall portion contact.
5. according to claim 4 for clamping the clamping device of working accessory, it is characterised in that:
The hole further includes the second hole wall portion for receiving the locking piece；
When the locking system is in the release conditions, the locking piece is in second contacted with second hole wall portion
Position；
The relatively described first hole wall portion recess of second hole wall portion.
6. according to claim 5 for clamping the clamping device of working accessory, it is characterised in that:
The hole further includes for connecting first hole wall portion and the second hole wall portion and forming both in junction
The interconnecting piece of step.
7. according to claim 5 for clamping the clamping device of working accessory, it is characterised in that:
The locking system includes:
Actuator is included in when the locking system switches to the release conditions from the lock state to the working accessory
Apply first driving portion for being used for ejecting the driving force of the working accessory；
The actuator further include: the working accessory to the locking system apply trigger force when drive the locking piece by
The second position moves to the second driving portion of the first position.
8. according to claim 7 for clamping the clamping device of working accessory, it is characterised in that:
The actuator and device noumenon are constituted using first axle as the rotation connection of axis；
First driving portion and second driving part are in the two sides of a plane by the first axle.
9. according to claim 7 for clamping the clamping device of working accessory, it is characterised in that:
The locking system further include:
Biased element generates the biasing force that locking piece described in a bias is moved from the second position to the first position.
10. a kind of electric tool, comprising:
Casing；
Motor is arranged in the casing；
Output is driven by the motor with output power；
It is characterized by:
The electric tool further includes described in claim 1 to 9 any one for clamping the clamping device of working accessory；Institute
It states clamping device and is connected to the output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919576.1A CN109590545B (en) | 2017-09-30 | 2017-09-30 | Clamping device for clamping working accessory and electric tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919576.1A CN109590545B (en) | 2017-09-30 | 2017-09-30 | Clamping device for clamping working accessory and electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109590545A true CN109590545A (en) | 2019-04-09 |
| CN109590545B CN109590545B (en) | 2021-05-11 |
Family
ID=65956817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919576.1A Active CN109590545B (en) | 2017-09-30 | 2017-09-30 | Clamping device for clamping working accessory and electric tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109590545B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070193041A1 (en) * | 2002-04-22 | 2007-08-23 | Hitachi Koki Co., Ltd. | Electric-powered cutting machine |
| CN102625738A (en) * | 2009-07-17 | 2012-08-01 | 迪美科技控股有限公司 | Power tool |
| CN203712650U (en) * | 2013-03-12 | 2014-07-16 | 英格索尔-兰德公司 | Hand-held electric tool |
| WO2014119211A1 (en) * | 2013-02-01 | 2014-08-07 | 株式会社マキタ | Cutting tool |
| CN204800592U (en) * | 2015-06-01 | 2015-11-25 | 南京德朔实业有限公司 | Electric tool |
| CN106312187A (en) * | 2015-06-18 | 2017-01-11 | 南京德朔实业有限公司 | Electric tool |
-
2017
- 2017-09-30 CN CN201710919576.1A patent/CN109590545B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070193041A1 (en) * | 2002-04-22 | 2007-08-23 | Hitachi Koki Co., Ltd. | Electric-powered cutting machine |
| CN102625738A (en) * | 2009-07-17 | 2012-08-01 | 迪美科技控股有限公司 | Power tool |
| WO2014119211A1 (en) * | 2013-02-01 | 2014-08-07 | 株式会社マキタ | Cutting tool |
| CN203712650U (en) * | 2013-03-12 | 2014-07-16 | 英格索尔-兰德公司 | Hand-held electric tool |
| CN204800592U (en) * | 2015-06-01 | 2015-11-25 | 南京德朔实业有限公司 | Electric tool |
| CN106312187A (en) * | 2015-06-18 | 2017-01-11 | 南京德朔实业有限公司 | Electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109590545B (en) | 2021-05-11 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |