Source: https://patents.google.com/patent/CN104136168B/en
Timestamp: 2020-01-19 19:48:34
Document Index: 35522849

Matched Legal Cases: ['art 166', 'art 248', 'art 252', 'art 248', 'art 252', 'art 248', 'art 248', 'art 148', 'art 264', 'art 264', 'art 264', 'art 264', 'art 264', 'art 264', 'art 156', 'art 264', 'art 264', 'art 264', 'art 264', 'art 264', 'art 264', 'art 148', 'art 296', 'art 296', 'art 296', 'art 296', 'art 296']

CN104136168B - For the accessory clamp of electric tool - Google Patents
For the accessory clamp of electric tool Download PDF
CN104136168B
CN104136168B CN201280053696.3A CN201280053696A CN104136168B CN 104136168 B CN104136168 B CN 104136168B CN 201280053696 A CN201280053696 A CN 201280053696A CN 104136168 B CN104136168 B CN 104136168B
CN201280053696.3A
CN104136168A (en
W·贝尔纳迪
B·诺尔斯
2011-09-30 Priority to US13/250,509 priority Critical
2011-09-30 Priority to US13/250,509 priority patent/US9067293B2/en
2012-09-28 Application filed by 罗伯特·博世有限公司, W·贝尔纳迪, B·诺尔斯 filed Critical 罗伯特·博世有限公司
2012-09-28 Priority to PCT/US2012/057786 priority patent/WO2013049482A2/en
2014-11-05 Publication of CN104136168A publication Critical patent/CN104136168A/en
2017-03-29 Publication of CN104136168B publication Critical patent/CN104136168B/en
A kind of clamping device for being clamped to adnexa on electric tool includes the first flange, spindle member and cam member.First flange is connected in the drive system of electric tool, and is adapted to receive adnexa.The spindle member limits longitudinal axis, and including the second flange being arranged on the one end of the spindle member and the driven member being arranged on the opposite end of the spindle member.The cam member includes the cam face for being adapted to interact with driven member surface, and the cam member can be rotated to clip position and released position around the longitudinal axis.In the released position, the adnexa can be pulled down from first flange, and in the clip position, the adnexa is clamped between first flange and second flange.
For the accessory clamp of electric tool
This patent disclosure relates generally to a kind of electric tool, more particularly to a kind of folder for being clamped to adnexa on electric tool Tool.
Vibration tool is the hand held electric tool used by professional skilled worker, odd jobs work and amateur.Typically shake Power driven tools be configured for can with for carrying out cutting, carving, drilling, grinding, polishing and a lot of other purposes multiple accessories The hand-held tool that cutter head/cutter is used together.A kind of vibration tool of particular example is by Robert Bosch Tools Co., Ltd The Dremel that (Robert Bosch Tool Corporation) sells Multi-MaxTMVibration tool.
Typical vibration tool includes the housing for encapsulating motor.The rotation of motor is attached to actuating device, the transmission dress Put and be changed into oscillating movement by described.Adnexa tool holder is connected in transmission dress from the front part extension of housing Put so that tool holder produces vibration when motor is fed electric energy.In particular, tool holder and it is connected to any of it Accessory bit is vibrated with the moving range of (2 °) to three degree (3 °) about twice all under the frequency of about 350Hz.Generally, vibrate So that the working portion of accessory bit is moved with controlled lateral movement, so as to small powder is produced in cutting operation process Dirt.
Accessory bit is generally attached to the adnexa tool holder with dismountable securing member and packing ring.The securing member Pulled down from tool holder by single hand-operated tools when user wants to change or replace additional cutter head.When the adnexa replaced When cutter head is navigated on adnexa tool holder, securing member and packing ring reconnect to cutter holding by single hand-operated tools Device.
Securing member effect in terms of adnexa cutter is anchored on adnexa tool holder is fine.But generally, single handss Power driven tools are little and easily misplaced.In addition, user it is generally desirable to rapidly change accessory bit, to reduce configuration vibration work The spent time quantum of tool.
Accordingly, it is desired to provide such a adnexa tool holder, which can be securely connected to accessory bit, it is not necessary to make Single hand-operated tools is used, and rapidly can be configured when user wishes to change or replace adnexa cutter.
According to one embodiment of the disclosure, a kind of clamping device for being clamped to adnexa on electric tool includes One flange, spindle member and cam member.First flange is connected in the drive system of electric tool, and is adapted to receive attached Part.The spindle member limits longitudinal axis, and including the second flange and setting being arranged on the one end of the spindle member Driven member on the opposite end of the spindle member.The cam member includes being adapted to interact with driven member surface Cam face, the cam member can be rotated to clip position and released position around the longitudinal axis.In the release position In putting, the adnexa can be pulled down from first flange, and in the clip position, the adnexa is clamped in described first Between flange and second flange.
According to another embodiment of the present disclosure, a kind of clamping device for being clamped to adnexa on electric tool includes One holder, actuator and the second holder.First holder is connected in the drive system of electric tool, and is configured to Adnexa can be received.The actuator can be rotated to clip position and released position around rotation axiss.The second holder energy Move along the direction parallel to the rotation axiss.When actuator is rotated to clip position, the adnexa is clamped in Between one holder and the second holder.When actuator is rotated to released position, the adnexa can be pulled down from the first holder.
According to the another embodiment of the disclosure, a kind of electric tool includes the first flange, spindle member, cam member and bias Part.First flange is connected in drive system, and is adapted to receive adnexa cutter.The spindle member limits longitudinal axiss Line, and including the second flange being arranged on the one end of the spindle member.The cam member include being adapted to it is described The cam face that the opposite end of spindle member interacts, the cam member can be rotated to released position around the longitudinal axis And clip position, in released position, the adnexa cutter can be pulled down from the first flange, and in clip position, the adnexa Cutter is clamped between the first flange and the second flange.The eccentric part limits heart axle opening and ramped surfaces, the heart Shaft member extends through the heart axle opening, and the ramped surfaces are configured to：Push when cam member is in clip position attached Part cutter is against the first flange.
Features described above and advantage and other in terms of will allow this area by referring to following detailed description of book and accompanying drawing Technical staff is it is more readily appreciated that in the accompanying drawings：
Fig. 1 shows the side view of the electric tool according to the disclosure, and the electric tool includes being shown in clamping Clamping device in position；
Fig. 2 is the sectional view of the electric tool of Fig. 1, shows the folder for being not connected to accessory bit in clip position Hold device；
Fig. 3 is the sectional view of the front part of the electric tool of Fig. 1, show in clip position be not connected to it is attached The clamping device of part cutter head；
Fig. 4 is the perspective view of the front part of the electric tool of Fig. 1, shows the clamping device in clip position, And accessory bit/cutter is connected to electric tool；
Fig. 5 is the sectional view of the front part of the electric tool of Fig. 1, show clamping device relative to clamping device The inner flange part of mandrel segment skew；
Fig. 6 is the perspective view of the driven member of the clamping device illustrated in Fig. 3；
Fig. 7 is the perspective view of the cam member of the clamping device illustrated in Fig. 3；
Fig. 8 is the perspective view of a part for the electric tool of Fig. 1, shows the clamping device in released position；
Fig. 9 is the sectional view of the front part of the electric tool of Fig. 1, shows the clamping device in released position；
Figure 10 is the perspective of the alternate embodiment of the driven member being used together with the clamping device of the electric tool of Fig. 1 Figure；
Figure 11 is the perspective view of the alternate embodiment of the heart axle being used together with the clamping device of the electric tool of Fig. 1, The heart axle includes the eccentric part that the flange near the heart axle is positioned；And
Figure 12 is the sectional view of a part for the alternate embodiment of the clamping device of the electric tool of Fig. 1, includes figure 11 heart axle and eccentric part.
In order to promote the understanding of principle of this disclosure, referring now to institute in illustrate in accompanying drawing and following written explanation The embodiment stated.It should be appreciated that being not intended to thereby limit the scope of the present disclosure.It is also understood that the disclosure is included to described Embodiment any changes and improvements, and including the original of the disclosure those skilled in the art generally thinkable disclosure The other application of reason.
As depicted in figs. 1 and 2, electric tool 100 is arranged for making accessory bit/cutter 102 vibrate/rotate.It is electronic Instrument 100 includes the drive system 104 being positioned at least partially in housing 112 and clamping device 108.108 energy of clamping device Enough it is configured in clip position and released position.In clip position, accessory bit 102 is connected to electronic by clamping device 108 Instrument 100.In released position, accessory bit 102 can be pulled down from electric tool 100.
Drive system 104 includes motor 116 and actuating device 120.Motor 116 includes motor shaft 124, and cost is set The known any motor of art personnel.Actuating device 120 is connected in motor shaft 124, and including drive rod 128.In Fig. 2 In shown embodiment, as understood by those skilled, the rotation of motor shaft 124 is changed by actuating device 120 Be drive rod 128 around vibration axis 168 oscillating movement.Lubricator 130 (Fig. 3), such as oils and fatss are included in housing 112, And contact with drive rod 128.
With reference to Fig. 3, clamping device 108 includes sleeve pipe 132, the holder for being arranged to external flange 136, is arranged to internal convex The holder of edge 140, heart axle 144, driven member 148, the actuator for being arranged to cam 152, biasing springs (biasing Spring) 156 and handle 160.Sleeve pipe 132 passes through upper bearing (metal) component 164 and lower bearing component 166 is pivotally supported at housing In 112.Upper bearing (metal) component 164 is configured to needle bearing assemblies but it is also possible to be any kind of bearing assembly.Lower bearing group Part 166 is configured to roller bearing but it is also possible to be any kind of bearing assembly.Sleeve pipe 132 limits chamber 172, pushes Spring 156 and heart axle 144 are positioned at least partially in the chamber 172.The low portion 176 of sleeve pipe 132 prolongs from housing 112 Stretch.Sleeve pipe 132 is attached to drive rod 128.Therefore, when motor 116 is powered, sleeve pipe 132 is together with drive rod 128 around vibration Axis 168 vibrates.Especially, sleeve pipe 132 is rotated back and forth to the rotating range of three degree (3 °) with (2 °) about twice.
As shown in figure 3, external flange 136 is fixedly connected to the low portion 176 of sleeve pipe 132, and it is positioned at housing 112 Outside.External flange 136 is attached to drive system 104 by sleeve pipe 132.When motor 116 is powered, external flange 136 with Sleeve pipe 132 together, and compared with sleeve pipe in the same way around vibration axis 168 vibrate.
Referring now to Fig. 4, external flange 136 can receive accessory bit 102, and include multiple protruding portion 180 for this.It is prominent Circular pattern of 180 one-tenth of the portion centered on vibrating axis 168 extends away from the contact surface 184 of flange 136.As shown in figure 5, every Individual protuberance 180 is respectively provided with side surface 188, contact surface 184 of the side surface 188 perpendicular to flat, so as to prominent The part of each gone out in portion is in identical shape when watching along vibration axis 168.In other words, each protuberance 180 188 part of side surface be not taper.It should be noted that the end section 189 of each in protuberance 180 can be rounding or Hypotenuse, in order to accessory bit 102 is connected to electric tool 100.Vertical side surface 188 enables external flange 136 Adnexa 102 is received in the case that there is between adnexa and external flange very little gap.
With reference to Fig. 5, inner flange 140 is arranged on the end of close external flange 136 of heart axle 144.Inner flange 140 Limit the periphery 190 of circular.The central point 192 of circular periphery 190 is offset relative to vibration axis 168 so that interior Being partially larger than positioned on the side (being close to the front portion of electric tool 100) of vibration axis that be positioned at of portion's flange 140 is shaken Part on the opposition side (being close to the rear portion of electric tool 100) of shaft line.Circular periphery 190 has slope edge 196, 196 engagement accessory cutter head 102 of the slope edge simultaneously pushes accessory bit against external flange 136.It should be noted that inner flange 140 central point 192 is defined as the center of round flange.However, the inner flange 140 of other embodiment can be non-circular , and can especially be irregular shaping.In these embodiments, the central point 192 of inner flange 140 can be internal convex The centre of form of edge.
Referring again to Fig. 3, heart axle 144 extends up through the chamber 172 in sleeve pipe 132 from inner flange 140.Heart axle 144 limit the longitudinal axis 200 coaxial with vibration axis 168.Heart axle 144 and inner flange 140 can be along parallel to shaking The direction movement of shaft line 168；However, heart axle in course of normal operation, be included in accessory bit 102 from electric tool 100 Electric tool 100 is all fixedly connected to when pulling down, and can not be pulled down from electric tool.
As shown in figure 3, driven member 148 is fixed to the upper end contrary with inner flange 140 of heart axle 144, and from heart axle Extend further out.Driven member 148 is positioned at least partially in the chamber 172 of sleeve pipe 132.Driven member 148 it is detached Perspective view figure 6 illustrates.Driven member 148 is integral member, and including the first protuberance formed integrally 204 and second Protuberance 208.First protuberance 204 and the second protuberance 208 are respectively with the phase for engaging with cam 152 and/or interact The driven member surface 212,216 answered.Driven member 148 has the periphery of circular, and the first protuberance 204 is prominent relative to second Go out portion 208 to be positioned on diametrically contrary side.
Fig. 3 is referred again to, the cam 152 of clamping device 108 is positioned above driven member 148 in housing 112, and at least portion It is located at dividing in the chamber 172 in sleeve pipe 132.The detached perspective view of cam 152 figure 7 illustrates.Cam 152 is limited greatly Circular periphery 220 is caused, the periphery 220 of the circular is with the central point 224 alignd with vibration axis 168.Cam 152 Including the cam face 228 for being positioned to interact with driven member 148.Cam face 228 includes 232 He of the first inclined surface Second inclined surface 236.First inclined surface 232 is positioned to the 212 phase interaction of driven member surface with the first protuberance 204 With, and the second inclined surface 236 is positioned to interact with the driven member surface 216 of the second protuberance 208.
Cam 152 also includes the first retainer 240, the second retainer 244, the first stop part 248 and the second stop part 252.First retainer 240 is positioned at the end of the first inclined surface 232, and the second retainer 244 is positioned at the second inclination The end on surface 236.Retainer 240,244 be configured to receive when cam 152 is rotated to released position protuberance 204, Corresponding one in 208, and keep positioning of the cam in released position.Protuberance 204,208 starts rotation in cam 152 Discharge to during clip position from retainer 240,244.First stop part 248 and the second stop part 252 from cam 152 radially outward Extend.When cam 152 is rotated to clip position, each stop part 248,252 is located against the corresponding portion of housing 112 Divide (not shown)；It is therefore prevented that cam is further rotated.The cam 152 of some embodiments may not include stop part 248, 252。
Cam 152 is rotatably located in housing 112, so as to around central point 224 at clip position (Fig. 2 and Fig. 3) Rotate and released position (Fig. 9) between.When cam 152 is in clip position, clamping device 108 is in clip position, and When cam is in released position, clamping device is in released position.
Fig. 3 is referred again to, the handle 160 of clamping device 108 is connected to cam 152 by being illustrated as the securing member of screw 256, So that the rotation of handle causes the rotation of cam.Handle 160 is in figs. 2 and 3 in clamping device 108 in clip position In the case of illustrate, and handle is illustrated in the case where clamping device is in the released position in figs. 8 and 9.As shown in figure 8, Handle 160 includes stop pin 258, and the stop pin 258 is interacted with the retainer 262 being formed in housing 112, to incite somebody to action Handle and clamping device 108 are fixed on clip position.
As shown in figure 3, biasing springs 156 are that the base 266 of sleeve pipe and driven is positioned in the chamber 172 of sleeve pipe 132 Compression spring between part 148.For each position of cam, spring 156 all towards cam 152 push driven member 148, Inner flange 140 and heart axle 144.When external flange 136 received accessory bit 102 and clamping device 108 in clamping position When putting, biasing springs 156 push inner flange 140 against accessory bit, and accessory bit is clamped in inner flange and outer thus Between portion's flange.
The component of clamping device 108 is by hard and wear-resistant material is formed.Therefore, sleeve pipe 132, external flange 136, interior Portion's flange 140, heart axle 144, driven member 148 and cam 152 can be by metal, rigid plastics and/or for those skilled in the art institute Other similar materials known are formed.
With reference to Fig. 4 and Fig. 8, accessory bit 102 is configured to the vibrating blade for including cut portion 260 and coupling part 264 Tool accessory bit.Cut portion 260 has the working end 268 (Fig. 8) for being used to shaping/cut workpiece (not shown).Such as Fig. 4 institutes Show, coupling part 264 is received by external flange 136, and limit heart axle opening 272, heart axial trough 276 and multiple protruding portion opening 280.Heart axle opening 272 is the opening of circular, has a diameter larger than the maximum gauge of heart axle 144 and less than inner flange 140 Diameter.The central point 284 of heart axle opening 272 is when adnexa 102 is clamped on electric tool 100 and in inner flange 140 Heart point 192 aligns.Diameter of the width of heart axial trough 276 more than heart axle 144, so that adnexa 102 can be by mandrel receptacle and from the heart Axle is pulled down.Protuberance opening 280 is positioned to align with the protuberance 180 on external flange 136 around central point 284.Protuberance The size of opening 280 is selected to：Receive in the case that there is between protuberance 180 and protuberance opening 280 very little gap Protuberance 180.
In operation, clamping device 108 is regularly clamped to accessory bit 102 on electric tool 100, and can be rapidly Be easily manipulated by, so as to by accessory bit from electric tool discharge.As shown in figure 3, clamping device 108 is in clip position In, and accessory bit 102 is not clamped between external flange 136 and inner flange 140.In order to accessory bit 102 is connected To electric tool 100, by handle 160 is rotated about 140 ° -190 ° (it is of about in a specific embodiment first 150 °), clamping device 108 is moved to into released position.Do not need single instrument that clamping device 108 is moved to release position Put.
Movement of the clamping device 108 from clip position to released position causes inner flange 140 along downwardly direction 288 (Fig. 9) move away from external flange 136.In particular, the rotation of handle 160 causes cam member 152 relative to the rotation of driven member 148 Turn.Therefore, when cam member 152 is rotated towards non-locked position, inclined surface 232,236 with driven member surface 212,216 The part for contacting is located remote from further along downwardly direction 288, thus forces driven member 148, heart axle 144 and inside convex Edge 140 is moved to as shown in Figure 9 position along downwardly direction against the power of biasing springs 156.By this way, CAM table The type exterior feature in face 228 determines the distance moved when handle is activated to released position from clip position by inner flange 140.
When handle 160 reaches released position, protuberance 204,208 is seated in the presence of the power of biasing springs 156 In retainer 240,244 in cam member 152.Handle 160 is easily movable released position, because cam face 228 Inclined surface 232,236 compress biasing springs 156 when there is provided advantage mechanically, and also as handle length rotation There is provided advantage mechanically during cam 152.Therefore, clamping device 108 (can be included by the user of nearly all level of skill The relatively low user of manual dexterity) operating.
As shown in figure 9, when clamping device 108 is in released position, inner flange 140 is separated with external flange 136, and Accessory bit 102 can be received by external flange.In order to by 102 externally connected flange 136 of accessory bit, heart axle 144 passes through the heart Axial trough 276 (Fig. 4) is moved in heart axle opening 272 (Fig. 4).Then, protuberance opening 280 is alignd with protuberance 180, and is connected Part 264 is mobile along upwardly direction 292 (Fig. 9), until protuberance passes through protuberance opening.Heart axle 144 is in accessory bit 102 do not pull down from electric tool 100 in the connection procedure of electric tool.
In the case where accessory bit 102 is received by external flange 136, handle 160 is moved to clip position, so as to will be attached The coupling part 264 of part cutter head 102 is clamped between inner flange 140 and external flange.Cam 152 is moved in handle 160 Rotate relative to driven member 148 during clip position.With the rotation of cam 152, protuberance 204,208 leave retainer 240, 244, and the part contacted with protuberance of inclined surface 232,236 is moved away from further along upwardly direction 292.At this Period, biasing springs 156 keep the driven member surface 212,216 of protuberance 204,208 against inclined surface 232,236 so that Driven member 148, heart axle 144 and inner flange 140 are in the presence of the power of biasing springs relative to external flange 136 along upwards Direction 292 move.The movement causes inner flange 140 to produce contact with adnexa 102.When handle 160 is rotated to clip position When, biasing springs 156 effectively promote inner flange 140 towards the direction of external flange 136, so that coupling part 264 is pressed from both sides Hold internally between flange and external flange.In clip position, the air gap 290 can also be formed in cam 152 and driven member Between 148 so that cam face 228 does not contact driven member surface 212,216 when clamping device 108 is in clip position.
After accessory bit 102 is clamped to electric tool 100, motor 116 can be powered, so as to cause accessory bit to vibrate. With reference to Fig. 2, the vibration of drive rod 128 causes sleeve pipe 132 to vibrate.The vibration of sleeve pipe 132 is passed to external flange 136 and adnexa The coupling part 264 of cutter head 102.The working end 268 of the accessory bit 102 of vibration may be positioned such that and absorption surface, to cut Workpiece makes component shaping.Generally, accessory bit 102 is vibrated with the scope about twice to three degree.
With reference to Fig. 5 and Fig. 6, inner flange 140 relative to vibration axis 168 deviation post together with slope edge 196 1 Rise clamping device 108 is enabled with the connection of substantially zero clearance (i.e. with basic between accessory bit and external flange 136 Upper zero " clearance ") accessory bit 102 is held on electric tool 100.When clamping device 108 is moved to clip position, tiltedly Slope edge 196 contacts heart axle opening 272.In initial contact, the central point 192 of inner flange 140 is relative to heart axle opening 272 Central point 284 be skew.However, heart axle opening 272 is forced against as slope edge 196 is pushed part 156, therefore, Such power is applied on coupling part 264：The power is moved into and inside along the central point 284 tended to coupling part The direction of the alignment of central point 192 of flange 140.Therefore, the power causes inner flange 140 effectively to push protuberance opening 280 Against the side surface 188 of protuberance 180, and the substantially connection of zero clearance described in setting up.
The connection of the substantially zero clearance between external flange and accessory bit 102 is increased from drive system 104 It is transferred to the efficiency of the moment of torsion of accessory bit.Compared with other similar electric tools, the increase in efficiency is embodied in adnexa knife Heat produced by between the increase of the vibration in 102 working end 268 and coupling part 264 and clamping device 108 Reduce.
The side surface 188 of protuberance 180 is also increased and is passed from drive system 104 under some loading conditions of accessory bit It is handed to the efficiency of the moment of torsion of accessory bit 102.As shown in figure 5, the contact of the seating external flange 136 securely of coupling part 264 Surface 184.However, under some loading conditions, coupling part 264 can be moved away from contact surface 184.But, due to vertical Even if the side surface 188 that ground extends also keeps opening with protuberance when coupling part 264 is not exclusively seated in contact surface 184 Mouth 280 is completely attached to, therefore the connection of the substantially zero clearance is maintained between coupling part 264 and external flange 136.
Figure 10 shows the driven member 148 ' of another embodiment.Driven member 148 ' is compared with driven member 148 with same side Formula works, and only the protuberance 204 ', 208 ' of driven member 148 ' is fixedly connected to driven member 148 ', rather than with it is driven Part 148 ' is integrally formed.Protuberance 204 ', 208 ' is substantial cylindrical, and including interacting with cam face 228 The contact surface 212 ', 216 ' of rounding.
Figure 11 and Figure 12 show the inner flange 140 ' of another embodiment, and which includes ledge surface 292 ' and eccentric part 296′.Inner flange 140 ' has a periphery 190 ' (Figure 11) of circular, the periphery 190 ' of the circular with shake The coaxial central point 192 ' of shaft line 168 and longitudinal axis 200 '.Ledge surface 292 ' is in clip position in clamping device 108 When contact accessory bit 102.
Eccentric part 296 ' is positioned on ledge surface 292 ', and with the central point relative to the vibration skew of axis 168 ' 300′.The central point 300 ' of eccentric part 296 ' can determine in a number of ways known to the skilled person in the art, including passing through Determine the centre of form of eccentric part to determine.Eccentric part 296 ' has slope edge 304 ', 304 ' engagement accessory knife of the slope edge The mode that the mode of 120 heart axle opening 272 engages heart axle opening 272 with slope edge 196 is identical, so that protuberance opening 280 are pushed against protuberance 180.Eccentric part 296 ' can be formed by the material including metal, rigid plastics etc..
Although describe in detail electric tool 100 in accompanying drawing and aforementioned specification, these descriptions should It is seen as illustrative and is not limited to literal meaning.For example, electric tool 100 has described as vibration type electric tool； However, the electric tool may also be provided as the rotary activated tool for being adapted to rotate accessory bit 102.It should be appreciated that Only preferred embodiment is stated, and all changes, the improvement and other application all phases fallen in the spirit of the disclosure Prestige is protected.
1. a kind of clamping device for being clamped to adnexa on electric tool, including：
First flange, which is connected in the drive system of electric tool, and is adapted to receive adnexa；
Spindle member, which limits longitudinal axis, and including the second flange and setting being arranged on the one end of the spindle member Driven member on the opposite end of the spindle member, second flange limit circle periphery and central point, it is described in Heart point is not lined up with the longitudinal axis of the spindle member；With
Cam member, which includes the cam face for being adapted to interact with the driven member, and the cam member can be around institute State longitudinal axis to rotate to clip position and released position, in the released position, the adnexa can be from first flange Pull down, and in the clip position, the adnexa is clamped between first flange and second flange.
2. clamping device as claimed in claim 1, it is characterised in that the clamping device also includes：
The thrust piece being positioned between the driven member and second flange, the thrust piece are adapted to towards described One flange pushes second flange.
3. clamping device as claimed in claim 1, it is characterised in that：
The cam member limits the periphery of circle, and
The cam face extends from the circular periphery of the cam member.
4. clamping device as claimed in claim 1, it is characterised in that：
The cam face includes the first inclined surface and the second inclined surface, and
The driven member includes the first protuberance being adapted to first inclined surface interaction and is configured to The second protuberance that can be interacted with second inclined surface.
5. clamping device as claimed in claim 1, it is characterised in that：
First flange includes multiple protruding portion, and the plurality of protuberance is configured to：Can be formed in the adnexa Multiple protruding portion opening is received, and
The spindle member includes ramp portion, and the ramp portion is configured to：Can push when cam member is in clip position The plurality of protuberance opening is against the plurality of protuberance.
6. clamping device as claimed in claim 5, it is characterised in that：
The adnexa limits heart axle opening, and the spindle member is configured to：The adnexa time delay is received in first flange The heart axle opening is extended through, and
The wide portion of the ramp portion is wider than the heart axle opening limited by the adnexa, and is in institute in the cam member The heart axle opening limited by the adnexa is contacted when stating clip position.
7. clamping device as claimed in claim 1, it is characterised in that the cam member limits retainer, the retainer It is configured to：At least a portion of the driven member can be received when the cam member is in the released position.
8. clamping device as claimed in claim 1, it is characterised in that the cam face is in the folder in the cam member Separate with the driven member when holding position.
9. a kind of clamping device for being clamped to adnexa on electric tool, including：
First holder, which is connected in the drive system of electric tool and including multiple protruding portion, the plurality of protuberance structure The multiple protruding portion opening that can be formed on the adnexa is caused to receive；
Actuator, which can be rotated to clip position and released position around rotation axiss；With
Second holder, which can move and limit ramped surfaces along the direction parallel to the rotation axiss,
Characterized in that, when the actuator is rotated to the clip position, the adnexa is clamped in first clamping Between part and second holder, and the ramped surfaces push the plurality of protuberance opening against the plurality of protrusion Portion, and
When the actuator is rotated to the released position, the adnexa can be pulled down from first holder.
10. clamping device as claimed in claim 9, it is characterised in that：
Second holder limits the periphery and central point of circle, and
The central point is relative to the rotational axis offset.
11. clamping devices as claimed in claim 10, it is characterised in that institute of the ramped surfaces by second holder The periphery for stating circle is limited.
12. clamping devices as claimed in claim 9, it is characterised in that the clamping device also includes being positioned at the actuating Thrust piece between device and second holder, the thrust piece are configured to：The clamping can be in the actuator Second holder is pushed towards first holder during position and when the actuator is in the released position.
13. clamping devices as claimed in claim 9, it is characterised in that the electric tool is rotating electric tool or shakes Dynamic formula electric tool.
A kind of 14. electric tools, including：
First flange, which is connected in drive system, and is adapted to receive adnexa cutter；
Spindle member, which limits longitudinal axis, and including the second flange being arranged on the one end of the spindle member；
Cam member, which includes the cam face for being adapted to interact with the opposite end of the spindle member, the cam Part can be rotated to released position and clip position around the longitudinal axis, in the released position, the adnexa cutter energy Pull down from first flange, and in the clip position, the adnexa cutter is clamped in first flange and described Between second flange；With
Eccentric part, which limits heart axle opening and ramped surfaces, and the spindle member extends through the heart axle opening, and described oblique Slope surface is configured to：The adnexa cutter is pushed when the cam member is in the clip position convex against described first Edge.
15. electric tools as claimed in claim 14, it is characterised in that the eccentric part limits central point, the center The longitudinal axis skew of the point relative to the spindle member.
16. electric tools as claimed in claim 14, it is characterised in that the electric tool also includes：
Driven member, which is arranged on the opposite end of the spindle member, and is positioned to interact with the cam member； With
The thrust piece being positioned between the driven member and second flange, the thrust piece are configured to：Can be described convex Institute is pushed towards first flange when gear member is in the clip position and when the cam member is in the released position State the second flange.
17. electric tools as claimed in claim 16, it is characterised in that：
First flange limits multiple protruding portion,
The adnexa cutter limits heart axle opening and is adapted to receive the multiple protruding portion opening of the plurality of protuberance,
The spindle member passes through the heart axle opening when the adnexa cutter is received by first flange,
The protuberance passes through the protuberance opening when the adnexa cutter is received by first flange, and
The thrust piece push when the cam member is in the clip position ramped surfaces of the eccentric part against The heart axle opening, and the protuberance opening is pushed against the protuberance.
18. electric tools as claimed in claim 17, it is characterised in that the drive system is vibration type drive system and rotation One in rotatable drive system.
CN201280053696.3A 2011-09-30 2012-09-28 For the accessory clamp of electric tool CN104136168B (en)
US13/250,509 2011-09-30
CN104136168A CN104136168A (en) 2014-11-05
CN104136168B true CN104136168B (en) 2017-03-29
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