CN103962817A - Operation method for dismounting working head from power tool - Google Patents
Operation method for dismounting working head from power tool Download PDFInfo
- Publication number
- CN103962817A CN103962817A CN201310034904.1A CN201310034904A CN103962817A CN 103962817 A CN103962817 A CN 103962817A CN 201310034904 A CN201310034904 A CN 201310034904A CN 103962817 A CN103962817 A CN 103962817A
- Authority
- CN
- China
- Prior art keywords
- output shaft
- locking member
- working head
- retainer
- power tool
- 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.)
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Classifications
-
- 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
-
- 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
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
Abstract
The invention provides an operation method for mounting and dismounting a working head on and from a power tool. The power tool comprises an output shaft, a fastening piece, a locking piece and a driving piece, wherein the output shaft is used for mounting the working head and driving the working head to work; the fastening piece is used for fixing the working head on the output shaft; the locking piece is used for locking and releasing the working head and moves between the locked position and the released position; and the driving piece is used for being movably arranged on the output shaft. The operation method comprises the following steps: a) pressing the driving piece to drive the locking piece to move so as to release the fastening piece; b) taking out the working head. The operation method has the benefits that an operator is only required to press the driving piece to drive the locking piece to move so as to release the fastening piece, so that the fastening piece can be easily dismounted from the output shaft, and the convenience for operation is improved.
Description
Technical field
The present invention relates to a kind of method of operating that working head is disassembled from power tool.
Background technology
Working head in power tool, as saw blade is driven by the rotary output axis being connected with the motor of power tool conventionally.In many cases, saw blade has one through the hole that holds output shaft at center.One end that saw blade is installed on output shaft is provided with internal thread.During installation, saw blade is placed on output shaft, fastening bolt is extended in the screw thread of output shaft through the hole on saw blade, then by spanner, fastening bolt is tightened, thereby saw blade is fixed on output shaft; Same, by spanner screwed tightening fixing bolt, and tightening member is taken off and can take off saw blade from output shaft.Visible working head is arranged on to the traditional structure on output shaft, operates very loaded down with trivial details and waste time and energy.
Therefore, be necessary to provide a kind of improved power tool in fact, to address the above problem.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of operating that can convenient and swift working head be disassembled from power tool.
In order to address the above problem, the invention provides a kind of method of operating that working head is loaded and unloaded on to power tool, described power tool comprises: output shaft, for installing and drive working head work; Securing member, for being fixed on working head described output shaft; Locking member moves between locked position and off-position, for locking or discharge described securing member; Actuator, movable being arranged on described output shaft; Described method of operating comprises the following steps: press described actuator, thereby drive described locking member to move, discharge described securing member; Described working head is taken out.
In disclosed method of operating, only need operator presses actuator, thereby drive locking member to move release fasteners, so can easily securing member be removed from output shaft, improved the convenience of operation.
Preferably, step a) in, along the axis direction of described output shaft, press described actuator.
Preferably, step a) in, the direction that described actuator drives described locking member to tilt along the axis with respect to described output shaft moves.
Preferably, described power tool comprises and can select the retainer that coordinates with described locking member.
Preferably, described retainer axially coordinating with described locking member along described output shaft.
Preferably, between described retainer and described actuator, be provided with spring.
Preferably, described retainer promotes described securing member under the effect of described spring.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is done to further detailed description.
Fig. 1 is the stereogram of power tool of the present invention.
Fig. 2 is the partial perspective view that the power tool shown in Fig. 1 removes housing.
Fig. 3 is the three-dimensional exploded view of the fast fixture of power tool of the present invention.
Fig. 4 is the three-dimensional exploded view of another angle of the fast fixture of power tool of the present invention.
Fig. 5 is the partial perspective view of the fast fixture of power tool of the present invention, and now, locking member is grip fastener not.
Fig. 6 is the partial perspective view of the fast fixture of power tool of the present invention, now, and locking member grip fastener.
Fig. 7 is the cutaway view of the fast fixture of power tool of the present invention, and now actuator is in initial position.Fig. 8 is the cutaway view of the fast fixture of power tool of the present invention, and now locking member is in off-position.Fig. 9 is the cutaway view of the fast fixture of power tool of the present invention, and now locking member is in locked position.Figure 10 is the stereogram of another angle of power tool of the present invention.
In figure:
30. little electric circular saw 32. housing 34. motors
36. transmission component 38. saw blade 40. output shafts
46. housing middle parts, the anterior 44. housing rear portion of 42. housings
48. power line 49. switch 50. securing members
52. installation portion 54. accepting hole 56. centre bores
58. boss 60. connector 62. projections
64. pressing plate 65. convex button 66. bar portions
68. stiff end 70. free end 72. steps
74. bearing surface 76. locking member 78. flexible members
80. retainer 81. mount pad 82. first Split seats
84. second Split seat 86. installation sleeve 88. first guiding faces
90. second guiding face 92. stopper slot 94. main bodys
96. through hole 98. spacing hole 100. locking faces
102. limiting section 104. protuberance 106. confined planes
108. adjacent surface 110. guidance part 112. auxiliary sections
114. mating groove 116. body 118. support portions
120. groove 122.U type groove 124. springs
126. actuator 128. operating portion 130. engaging pieces
132. guide part 134. guide groove 136. first fields of conjugate action
138. second field of conjugate action 139. screwed hole 140. protective covers
142. hole
The specific embodiment
The present invention relates to a kind of power tool, relate in particular to structure and the method on power tool that be arranged on of working head.Wherein power tool can be electric circular saw, little electric circular saw, oscillating machine, angle mill, diagonal cutting saw etc.; And working head can be a kind of straight blade, can be also as other annexes such as saw blade, emery disc, scrapers.
In the present embodiment, enumerate little electric circular saw creating conception of the present invention is described.
Refer to Fig. 1 and Fig. 2, a kind of little electric circular saw 30, comprises housing 32, is housed in motor 34 in housing 32, is connected transmission component 36 for transferring power with motor 34, by transmission component 36, driven and for output shaft 40(that saw blade 38 is installed as shown in Figure 3).In description of the invention, unless otherwise noted, direction term, as front, back, left, right, up and inferior, be all the direction with respect to normal this little electric circular saw of use, as the direction of advance that defines little electric circular saw is front, the direction contrary with the direction of advance of little electric circular saw is rear etc.
This housing 32 comprises housing front portion 42, housing rear portion 44 and is connected the housing middle part 46 at housing anterior 42 and housing rear portion 44.Here housing middle part 46 is handle grip portion, and certainly, handle grip portion also can be arranged on other position of housing 32 or arrange separately.
Motor is motor 34 in the present embodiment, motor 34 by transmission component 36 by transmission of power to output shaft 40, thereby drive saw blade 38 to carry out cutting work.As well known to the skilled person, motor can be also air motor, hydraulic motor etc.Motor 34 is contained in housing rear portion 44, thereby motor 34 is electrically connected and can be connected to AC power (not shown) above with power line 48, and motor 34 can be also to power by dc-battery certainly.Little electric circular saw 30 also comprises switch 49, and switch 49 is electrically connected and is used for controlling the unlatching of motor 34 and stopping with motor 34.
As shown in Figure 3, output shaft 40 extends longitudinally, and has axis X.Saw blade 38 is installed by securing member 50 in one end at output shaft 40.Output shaft 40 comprises the installation portion 52 that connects with saw blade 38 and accepting hole 54 extending longitudinally.
On saw blade 38, offer centre bore 56, output shaft 40 is provided with the boss 58 coordinating with this centre bore 56.In the present embodiment, the size of centre bore 56 is greater than the size of boss 58.Therefore, little electric circular saw 30 is also provided with connector 60.Connector 60 be provided with four columniform protruding 62, for coordinating with four arc chord angles of centre bore 56.During installation, four columniform protruding 62 of connector 60 are passed installation portion 52 and coordinate with four arc chord angles 6 of centre bore 5, thereby transmitted better power when saw blade 38 is firmly arranged on output shaft 40.Certainly, those skilled in the art are readily appreciated that, boss 58 can all mate or all not mate in shape, size or both with centre bore 56.And the cross section of centre bore 56 can be a variety of shapes, as circular, ellipse, triangle or abnormity etc.Equally, the cross section of boss 58 also can have a variety of shapes, as ellipse, triangle, polygon etc.
Securing member 50 is for saw blade 38 is arranged on to output shaft 40, and securing member 50 passes the centre bore 56 of saw blade 38, and then saw blade 38 is connected on the installation portion 52 of output shaft 40.
For Fast Installation or dismounting saw blade 38, this little electric circular saw 30 is provided with can Fast Installation or the fast fixture of dismounting securing member 50.
In the present embodiment, securing member 50 comprises the pressing plate 64 connecting with saw blade 38 and extends into the bar portion 66 in accepting hole 54.The bottom surface of pressing plate 64 can roughly be set to taper.On the bottom surface of pressing plate, be provided with convex button 65, convenient operation person press.Bar portion 66 is roughly cylindrical.Certainly, bar portion 66 cross sections can be a variety of shapes, as rectangle, ellipse etc.
Bar portion 66 comprises the stiff end 68 being connected with pressing plate 64 and the free end 70 being oppositely arranged.The end of free end 70 is tapering point.
Bar portion 66 is provided with step 72 in the position near free end 70, and this step 72 is formed with the bearing surface 74 of the axis X that is approximately perpendicular to output shaft 40.In the present embodiment, the outline of bearing surface 74 is circular, and those skilled in the art are readily appreciated that certainly, and the outline of bearing surface 74 can be other a variety of shapes, as connects shape, ellipse, triangle etc. more.And the concrete effect of tapering point 70 and bearing surface 74 can be described in detail in the back.
Consult Fig. 3, fast fixture comprise can be between locked position and off-position mobile locking member 76, for impelling locking member 76 all the time towards the flexible member 78 of locked position and can select the retainer 80 that coordinates with locking member 76.
On output shaft 40, be connected with mount pad 81.In the present embodiment, mount pad 81 comprises first, second Split seat 82 and 84, and wherein the second Split seat 84 is fixedly connected with output shaft 40.In the present embodiment, the second Split seat 84 is provided with screwed hole, and output shaft 40 is provided with external screw thread at the other end away from installation portion 52, and so, output shaft 40 links together by threaded engagement and the second Split seat 84.Certainly, also can output shaft 40 and the second Split seat 84 be fixed together by other mounting means well-known to those skilled in the art such as screw, rivet, welding
The outside of mount pad 81 is arranged with female installation sleeve 86, the second Split seats 84 of tool and is provided with external screw thread (not shown).The internal thread of installation sleeve 86 coordinates with the external screw thread of the second Split seat 84, thereby first, second Split seat 82 and 84 is fixed together.Certainly, also external screw thread can be arranged on the first Split seat 82.Be appreciated that mount pad 81 can be also a single integral body; Or form a single integral body with output shaft 40; Or be fixed together by other mounting means well-known to those skilled in the art such as bolt, screw, rivet and output shaft 40.
In mount pad 81, be provided with the guide channel (not label) coordinating with locking member 76.Locking member 76 moves in guide channel, realizes and changing between locked position and off-position.
The first Split seat 82 is provided with the first guiding face 88 coordinating with locking member 76.Here, the first guiding face 88 is obliquely installed with respect to the axis X of output shaft 40.
As shown in Figure 4, the second Split seat 84 is provided with the second guiding face 90 coordinating with locking member 76, and same, the second guiding face 90 is obliquely installed with respect to the axis X of output shaft.
And when first, second Split seat 82 and 84 is fixed together, between the first guiding face 88 and the second guiding face 90, form the guide channel coordinating with locking member 76.Thereby guide channel is obliquely installed with respect to the axis X of output shaft.
In mount pad 81, be provided with the stopper slot 92 of accommodating retainer 80.Preferably, the bearing of trend of stopper slot 92 and the axis X of output shaft be arranged in parallel.Certainly, those skilled in the art are readily appreciated that, the bearing of trend of stopper slot 92 also can be obliquely installed with respect to the axis X of output shaft 40.
Locking member 76 is processed by rigid, and it is installed in mount pad 81, and is positioned at first, second Split seat 82 and 84 spaces that form.Locking member 76 comprises the main body 94 that roughly becomes U-shaped, is provided with through hole 96 and the impenetrable spacing hole 98 of bearing surface 74 that can pass for bearing surface 74 in this main body 94.Wherein through hole 96 and spacing hole 98 lay respectively at the two ends of main body 94 and are interconnected.Through hole 96 can match with the outline of bearing surface 74, also can not match with the outline of bearing surface 74, only need be slightly larger than the outline of bearing surface 74.And in the present embodiment, through hole 96 is roughly square.The spacing hole 98 being connected with through hole 96 is rectangle, and its width is slightly less than the length of side of through hole 96.
On the surface of main body 94, be formed with the locking face 100 leaning with bearing surface 74.Through hole 96 is opened on this locking face 100.
Consult Fig. 5, when locking member 76 is positioned at off-position, through hole 96 is not shown with the accepting hole 54(on output shaft 40) align, can be for the bearing surface 74 on securing member 50 simultaneously through through hole 96 and accepting hole 54; Consult Fig. 6, when locking member 76 is positioned at locked position, because locking member 76 is radially outward mobile, impel the accepting hole 54 on through hole 96 and output shaft 40 to stagger, and spacing hole 98 aligns at least partly with accepting hole 54, because spacing hole 98 is narrower on can not fastener 50 bearing surface 74 passes, and under the effect of flexible member 78, the locking face 100 on locking member 76 coordinates with bearing surface 74, thereby locking member 76 is locked at securing member 50 on output shaft 40.Bar portion 66 comprises the limiting section 102 being connected with step 72, and this limiting section 102 can pass spacing hole 98.
The end that autonomous agent 94 arranges one end of through hole 96 two the symmetrical protuberances 104 that extend radially outwardly.Protuberance 104 comprises and the vertically disposed confined planes 106 of bearing surface 74.Confined planes 106 forms the space of accommodating flexible member 78 with the adjacent surface 108 on mount pad 81.That is to say, one end of flexible member 78 is resisted against on confined planes 106, and the other end is resisted against on adjacent surface 108.
Referring to Fig. 4, locking member 76 is provided with the guidance part suitable with guide channel 110 again.Certainly, guide channel also can be arranged on locking member 76, and guidance part 110 is arranged on mount pad 81.
Guidance part 110 is arranged on the both sides of through hole 98, and the bearing of trend of guidance part 100 is obliquely installed with respect to locking face 100.Thus, when locking member 76 moves, fit with first, second guiding face 88 and 90 respectively in the upper and lower surface of guidance part 100, guidance part 100 can be tilted in guide channel mobile along the axis X with respect to output shaft.Certainly, understood by one of ordinary skill in the art, here, the moving direction of locking member 76 also can be perpendicular to the axis X of output shaft 40.
Retainer 80 is processed by rigid, and it is movably housed in stopper slot 92, thereby retainer 80 is arranged on output shaft 40 movably, and can moving axially along output shaft 40.Certainly, as understood by those skilled in the art, the moving direction of retainer 80 can tilt with respect to the axis X of output shaft 40 or vertically arrange.
Retainer 80 selectively coordinates with locking member 76.One of them is provided with mating groove retainer 80 and locking member 76, and another in retainer 80 and locking member 76 is provided with the auxiliary section of matching in auxiliary section.
In the present embodiment, auxiliary section 112 is arranged on retainer 80, and mating groove 114 is arranged on locking member 76.Mating groove 114 extends axially along output shaft 40.
Retainer 80 comprises body 116, from the upper and lower surface of body 116, is extended with respectively two auxiliary sections 112 and two support portions 118.Body 116 is roughly sheet, is provided with the groove 120 matching with securing member 50, and wherein this groove 120 can be the shapes such as semicircle or arc.During installation, the groove 120 of semicircle or arc is towards the through hole 96 on locking member 76.So, when tapering point 70 matches with groove 120, what make that securing member 50 promotes that retainers 80 move is more stable.
Extend downwards vertically from the lower surface of body 116 two auxiliary sections 112, and Central Symmetry setting.When auxiliary section 112 is contained in mating groove 114, retainer 80 stops locking member 76 to move, and locking member 76 is positioned at off-position; When auxiliary section 112, throw off and coordinate with mating groove 114, retainer 80 cannot stop locking member 76 to move, and locking member 76 moves to locked position under the effect of flexible member 78.Here, flexible member 78 can be stage clip, torsion spring etc.
Two support portions 118 axially extend upward and form from the upper surface of body 116, and same Central Symmetry setting.Support portion 118 has been provided with U-shaped groove 122, for part, accommodates spring 124.This spring 124 is for impelling retainer 80 to coordinate with locking member 76.
In sum, in off-position, retainer 80 coordinates with locking member 76, can be from output shaft 40 removal of fastener 50, thereby can quick-detachment saw blade 38; In off-position, to locked position process, securing member 50 promotes retainers 80, impels retainer 80 to throw off and the coordinating of locking member 76, and locking member 76 moves to locked position under the effect of flexible member 78; At locked position, bar portion 66 is clamped on output shaft 40, and saw blade 38 is clamped between installation portion 52 and pressing plate 64, and then can Fast Installation saw blade 38.Thereby can, without outside aid in the situation that, change rapidly saw blade 38.
Consult Fig. 3 again, for convenient, locking member 76 is converted to off-position from locked position, little electric circular saw also comprises the actuator 126 that impels locking member 76 to move.By operation actuator 126, locking member 76 can be moved to off-position by locked position, and then securing member 50 can be shifted out in output shaft 40.
Actuator 126 is movable to be arranged on mount pad 81, and the direction that can drive locking member 76 to tilt along the axis X with respect to output shaft 40 moves.
Actuator 126 comprises can be for the operating portion 128 of operator operation, be connected to engaging piece 130 and guide part 132 on operating portion 128.Wherein guide part 132 matches with the guide groove 134 on mount pad 81, and actuator 126 is moved between activation point and initial position, and wherein the bearing of trend of guide groove 134 and output shaft 40 axially parallels.So, actuator 126 moving axially along output shaft 40 operationally.Certainly, the direction that actuator 126 also can tilt along the axis X with respect to output shaft 40 moves or is arranged on mount pad 81 by modes such as rotations.
Engaging piece 130 comprises first field of conjugate action 136 being obliquely installed vertically.When actuator 126 is movable, by first field of conjugate action 136, drive locking member 76 to move.
Locking member 76 is provided with the second field of conjugate action 138(of matching with first field of conjugate action 136 as shown in Figure 4), second field of conjugate action 138 is obliquely installed with respect to the axis X of output shaft 40.
Press drive division 126, first field of conjugate action 136 is meshed with second field of conjugate action 138, thereby drive locking member 76 to move to off-position by locked position.
Consult Fig. 7, in the present embodiment, spring 124 is arranged between retainer 80 and actuator 126.Therefore, the spring force of spring 124 impels actuator 126 to be always positioned at initial position; Impel retainer 80 all the time towards the position with locking member 76 engagements simultaneously.Certainly, little electric circular saw 30 also can arrange two springs, and these two springs impel respectively actuator 126 to be positioned at initial position and impel retainer 80 all the time towards the position with locking member 80 engagements.
Below in conjunction with Fig. 8 and Fig. 9, present embodiment saw blade 38 locking and dispose procedures are described.Actuator 126 can drive locking member 76 to be converted to off-position from locked position, and when locked position, be locked part 76 of securing member 50 clamps, thereby saw blade 38 is stably fixed on output shaft 40; When off-position, locking member 50 loosening fasteners 50 can be removed securing member 50, thereby saw blade 38 are taken off in output shaft 40.Therefore, this little electric circular saw can, without outside aid in the situation that, be changed saw blade 38 rapidly.
As shown in Figure 8, now locking member 76 in off-position.In this position, under the effect of spring 124, retainer 80 coordinates with locking member 76.Under the effect of spring 124, the auxiliary section 112 on retainer 80 is fastened in the mating groove 114 on locking member 76.And now, the through hole 96 on locking member 76 roughly aligns with the accepting hole 54 on output shaft 40.Locking face 100 on locking member 76 departs from engagement with securing member 50.At this moment, locking member 76 is in release fasteners 50, and then securing member 50 can be removed in locking member 76, thereby saw blade 38 can be taken off.
It may be noted that above-mentioned off-position is that the movement that operates actuator 126 by external force impels locking member 76 to move to off-position.When off-position, although cancelled external force, due to the effect of spring 124, actuator 126 returns back to initial position; Auxiliary section 112 cards on retainer 80 are set in the mating groove 114 on locking member 76, thereby make locking member 76 remain on off-position.
Before securing member 50 is installed into output shaft 40, first saw blade 38 is arranged between the installation portion 52 and pressing plate 64 of output shaft 40.Can first saw blade 38 be arranged on the installation portion 52 of output shaft 40, then securing member 50 be passed to the centre bore 56 of saw blade 38, then stretch in the accepting hole 54 of output shaft 40; Also securing member 50 can be passed to the centre bore 56 of saw blade 38, then stretch in the accepting hole 54 of output shaft 40.
When needs are locked, user sees Fig. 3 by the convex button 65(pressing on securing member 50), the free end 70 of securing member 50 coordinates with the groove 120 of retainer 80, the axis of elasticity that impels retainer 80 to overcome spring 124 upwards moves certain distance, until auxiliary section on retainer 80 112 departs from and the coordinating of mating groove 114 on locking member 76.In the moving process of retainer 80, retainer 80 moves axially along output shaft 40.
As shown in Figure 9, and auxiliary section 112 on the retainer 80 departs from and the coordinating of mating groove 114 on locking member 76,76 mobile also supporting rod portions 66 under the effect of flexible member 78 of locking member.
It may be noted that in locking process, locking member 76 axis X with respect to output shaft 40 under the effect of flexible member 78 tilts mobile; Under the effect of flexible member 78, the movement of locking member 76 impels through hole 96 and the accepting hole 54 on output shaft 40 to stagger, and then makes the limiting section 102 on securing member 50 be arranged in spacing hole 98.At flexible member 78 further under effect, the locking face 100 on locking member 76 and 74 engagements of the bearing surface of securing member 50, securing member 50 part 76 that is locked clamps, thereby saw blade 38 is fixed between installation portion 52 and pressing plate 64.
It may be noted that at above-mentioned locked position, locking face 100 roughly with vertical setting of axis X of output shaft 40.
It may be noted that at above-mentioned locked position retainer 80 Compress Springs 124.Retainer 80, under the effect with the opposing ledge surface of bearing surface 74, is maintained at the position with locking member 76 non-engagements.
It may be noted that in the present embodiment, the axis X bearing of trend relative tilt of the moving direction of locking member 76 and output shaft 40 arranges, not vertical setting.This is because little electric circular saw 30 can be installed the saw blade of different brands, different model, and the such thickness of the saw blade disunity that is bound to.Therefore, be obliquely installed and can eliminate the end play that the thickness disunity due to saw blade brings.Thus, it will be appreciated by those skilled in the art that, also can coordinate to eliminate the end play that the thickness disunity due to saw blade brings with the bearing surface of securing member by inclined plane is set.Certainly, if vertical setting of bearing of trend of the moving direction of locking member 76 and the axis X of output shaft 40, this locking member 76 also can be fixed certain thickness saw blade.
Above, describe the clamping process of the little electric circular saw 30 of present embodiment in detail, its dispose procedure is contrary with clamping process.When needs by saw blade 38 when output shaft 40 is dismantled, only need by the drive division 128 of Manual press actuator 126, Compress Spring 124, makes actuator 126 along being parallel to moving axially of output shaft 40.Actuator 126 is in moving process, and its first field of conjugate action 136 meshes with second field of conjugate action 138 on locking member 76, and then drives locking member 76 to move.Locking member 76 is when moving for mount pad 81, and locking face 100 is thrown off the engagement with bearing surface 74, and through hole 96 moves to the position of roughly aliging with accepting hole 54, thus release fasteners 50.Retainer 80, under the elastic force effect of spring 124, axially moves down, because the groove 120 of retainer 80 coordinates with free end 70, therefore, can drive securing member 50, securing member 50 is released certain distance in output shaft the most at last, thereby securing member 50 can be taken out easily in output shaft; Meanwhile, retainer 80 axially moves down, until auxiliary section 112 coordinates with mating groove 114, and then retainer 80 stops locking members 76 to move, and locking member 76 is positioned at off-position.
It may be noted that as shown in Figure 9, in the present embodiment, accepting hole 54 is provided with screwed hole 139 in the one end near saw blade 38 herein.If it is screwed fastening bolt or screw that securing member changes into.When saw blade 38 is installed, only need to by securing member through the centre bore 56 on saw blade 38 and with screwed hole 139 threaded engagement, also saw blade 38 can be fixed on output shaft 40.
Refer to Figure 10, on housing front portion 42, be provided with protective cover 140.Protective cover 140 comprises and is roughly circular hole 142.This hole 142 can be sealing or semiclosed, for holding actuator 126.Thereby avoid end user's maloperation actuator 126; Or due to being placed on, little electric circular saw 30 on workbench, actuates actuator 126.
The present invention is not limited to aforementioned embodiments, and those skilled in the art also may make other changes under the enlightenment of the technology of the present invention marrow, but as long as function and the present invention of its realization are same or similar, all should be covered by protection domain of the present invention.
Claims (7)
1. method of operating working head being disassembled from power tool, is characterized in that,
Described power tool comprises:
Output shaft, for installing and drive working head work;
Securing member, for being fixed on working head described output shaft;
Locking member moves between locked position and off-position, for locking or discharge described securing member;
Actuator, movable being arranged on described output shaft;
Described method of operating comprises the following steps:
A) press described actuator, thereby drive described locking member to move, discharge described securing member;
B) described working head is taken out.
2. method of operating according to claim 1, is characterized in that: step a) in, along the axis direction of described output shaft, press described actuator.
3. method of operating according to claim 1, is characterized in that: step a) in, the direction that described actuator drives described locking member to tilt along the axis with respect to described output shaft moves.
4. method of operating according to claim 1, is characterized in that: described power tool comprises can select the retainer that coordinates with described locking member.
5. method of operating according to claim 4, is characterized in that: described retainer axially coordinates with described locking member along described output shaft.
6. method of operating according to claim 4, is characterized in that: between described retainer and described actuator, be provided with spring.
7. method of operating according to claim 6, is characterized in that: described retainer promotes described securing member under the effect of described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034904.1A CN103962817B (en) | 2013-01-30 | 2013-01-30 | The operating method that work head is disassembled from power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034904.1A CN103962817B (en) | 2013-01-30 | 2013-01-30 | The operating method that work head is disassembled from power tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103962817A true CN103962817A (en) | 2014-08-06 |
| CN103962817B CN103962817B (en) | 2018-08-07 |
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| CN201310034904.1A Expired - Fee Related CN103962817B (en) | 2013-01-30 | 2013-01-30 | The operating method that work head is disassembled from power tool |
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| US20030079331A1 (en) * | 2001-10-25 | 2003-05-01 | Marius Batrin | Combination tool for robot assisted assembly |
| CN1893009A (en) * | 2005-07-07 | 2007-01-10 | 松下电器产业株式会社 | Component mounting apparatus and component mounting method |
| CN101258338A (en) * | 2005-09-07 | 2008-09-03 | 布莱克和戴克公司 | Power tool with interchangeable blades and method |
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| Publication number | Publication date |
|---|---|
| CN103962817B (en) | 2018-08-07 |
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