CN105538240A - Working head - Google Patents
Working head Download PDFInfo
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- CN105538240A CN105538240A CN201510695003.6A CN201510695003A CN105538240A CN 105538240 A CN105538240 A CN 105538240A CN 201510695003 A CN201510695003 A CN 201510695003A CN 105538240 A CN105538240 A CN 105538240A
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- Prior art keywords
- working head
- output shaft
- installing hole
- projections
- projection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a working head. The working head can be installed on an output shaft of a power tool. The working head is provided with an installation part which is matched with the output shaft. The installation part is provided with a center hole and a matching surface, wherein the center hole has a center, and the matching surface faces the output shaft. A concave part is formed in the installation part around the center hole from the matching surface and provided with a bottom surface. An internal installation hole is formed in the installation part from the bottom surface in the direction away from the matching surface. The internal installation hole and the concave part can be matched with output shafts of at least two different types of power tools correspondingly, so that the universality of the working head is improved.
Description
The application is applicant is " working head " in the denomination of invention that on December 31st, 2011 applies for, application number is the divisional application of the Chinese invention patent application of 201110459567.1.
Technical field
The present invention relates to a kind of working head, particularly relating to the working head on a kind of output shaft for being fitted to power tool.
Background technology
Multi Role Aircraft is the common hand-held swing-type power tool of industry, and to be output shaft do oscillating motion around self axial line for its operation principle.Therefore, after user is provided with different working heads on the free end of output shaft, after straight blade, saw blade, triangle frosted dish, spade-type scraper, multiple different operating function can be realized, as sawed, cutting, grind, scrape, to adapt to different work requirements.
The operation principle of Multi Role Aircraft is: at multi-purpose tool body built with motor driver, and drives the eccentric output shaft be installed in spherical bearing to do oscillating movement by shift fork, thus drives operation element to do oscillating movement, realizes processing to machined part.Different operation elements has different special purposes, and saw blade, sand paper etc. for polishing such as cutting, wherein, saw blade is a kind of operation element that multi-purpose tool is in daily use.
At present, market there is the multi-purpose tool of several brand, such as Bosch, Dremel, Fein, Porter-Cable, Worx, the multi-purpose tool of often kind of brand is all furnished with the working head of respective brand, but the working head between various brands but can not be general, that is, after user have purchased the multi-purpose tool of certain brand, if need to buy removable working head, he can only buy the working head of this brand, and the working head of other brands cannot be installed on its multi-purpose tool had.Therefore, existing working head does not have good versatility, and this brings worry to user.
Therefore, the working head that a kind of improvement is provided is necessary, to solve the problem in fact.
Summary of the invention
The object of the present invention is to provide a kind of working head for being mounted on power tool, this working head can be matched with the output shaft of dissimilar power tool.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of working head, can be mounted on the output shaft of power tool, this working head is provided with the installation portion coordinated with described output shaft, described installation portion is provided with the centre bore with center and the mating surface towards described output shaft, wherein, described installation portion is formed with depressed part around described centre bore from described mating surface, described depressed part has bottom surface, described installation portion offers inner installing hole from described bottom surface along the direction away from described mating surface, described inner installing hole and described depressed part can coordinate respectively with the output shaft of at least two kinds of dissimilar described power tools.
Preferably, described output shaft is provided with the drive division coordinated with described installation portion, described depressed part at least comprises the first side wall and the second sidewall that engage with described drive division, described depressed part by with the coordinating of described the first side wall and the second sidewall, transfer a torque to described installation portion.
Preferably, described the first side wall and the second sidewall are positioned on the limit of regular polygon centered by the center of described centre bore or regular polygon.
Preferably, described installation portion comprises superimposed the first noumenon and the second body, described the first noumenon has the supporting surface supporting described second body, and the bottom surface of described depressed part is formed on the supporting surface of described the first noumenon, and described the first side wall and the second sidewall are formed on described second body.
Preferably, described installation portion offers and to be positioned at outside described inner installing hole and to run through the outside installing hole of described the first noumenon and described second body, the middle part of described second body offers the mesopore that size is greater than described centre bore, and the described outside installing hole be positioned on described second body is communicated with described mesopore.
Preferably, the thickness range of described the first noumenon and the second body is 0.5 ~ 1 millimeter.
Preferably, the thickness of the second body is 0.5 ~ 3 times of the thickness of described the first noumenon.
Preferably, described inner installing hole comprises from outward extending at least two projections of described centre bore.
Preferably, described installation portion comprises outside installing hole, and described outside installing hole comprises at least two perforates, these perforates be distributed in the center of described centre bore for the center of circle circumferentially, and to be positioned at diametrically outside described inner installing hole.
Preferably, symmetric figure centered by the cross section of described perforate, has through described center and the radial center line extended.
Preferably, described perforate comprises the inner section and outer portion part that radial direction sets gradually, it is comparatively far away apart from described center that described inner section compares described outer portion part, and on the direction perpendicular to described center line, the Breadth Maximum of described inner section is greater than the Breadth Maximum of described outer portion part.
Preferably, the cross section of described outer portion part is rectangle, and the cross section of described inner section is a circular part, and the diameter dimension of described inner section is greater than the transverse width of described outer portion part.
Preferably, the projection of inner installing hole described at least one is communicated with the perforate of a described outside installing hole.
Preferably, the circumferential angle relative to described center between the adjacent protrusion of described inner installing hole is less than or equal to 120 degree, and the circumferential angle relative to described center between the adjacent apertures of described outside installing hole is less than or equal to 120 degree
Preferably, being 45 degree relative to the circumferential angle at described center between the adjacent protrusion of described inner installing hole, is 30 degree relative to the circumferential angle at described center between the adjacent apertures of described outside installing hole.
Preferably, described inner installing hole has five projections, and described outside installing hole has nine perforates, and three projections at 90 degree, the interval of described inner installing hole overlap diametrically with three perforates of described outside installing hole respectively
Preferably, described installation portion has outward flange, and described installation portion is provided with from the through breach to described centre bore of described outward flange.
Preferably, the center of the relatively described centre bore of described breach is 60 angles.
Working head of the present invention by arranging depressed part on its installation portion, and offer inner installing hole in the bottom surface of depressed part, depressed part and inner installing hole are connected respectively with the output shaft of dissimilar power tool, thus substantially increase the versatility of working head, reduce the worry that user changes variety classes working head, more convenient user uses.
Accompanying drawing explanation
Fig. 1 is that in first embodiment of the invention, working head is mounted to the combination schematic diagram after power tool.
Fig. 2 is the schematic perspective view of working head shown in Fig. 1.
The back side schematic perspective view that Fig. 3 is working head shown in Fig. 2.
Fig. 4 is the front view of working head shown in Fig. 2.
Fig. 5 is the perspective exploded view of working head shown in Fig. 2.
Fig. 6 is the schematic perspective view of the output shaft of power tool shown in the first Fig. 1.
Fig. 7 for output shaft shown in working head with Fig. 6 shown in Fig. 2 coordinate after schematic diagram.
Fig. 8 is the schematic perspective view of the output shaft of power tool shown in the second Fig. 1.
Fig. 9 for output shaft shown in working head with Fig. 8 shown in Fig. 2 coordinate after schematic diagram.
Figure 10 is the schematic perspective view of the output shaft of power tool shown in the third Fig. 1.
Figure 11 for output shaft shown in working head with Figure 10 shown in Fig. 2 coordinate after schematic diagram.
Figure 12 is the schematic perspective view of the output shaft of power tool shown in the 4th kind of Fig. 1.
Figure 13 for output shaft shown in working head with Figure 12 shown in Fig. 2 coordinate after schematic diagram.
Figure 14 is the schematic perspective view of the output shaft of power tool shown in the 5th kind of Fig. 1.
Figure 15 for output shaft shown in working head with Figure 14 shown in Fig. 2 coordinate after schematic diagram.
Figure 16 is the schematic perspective view of the output shaft of power tool shown in the 6th kind of Fig. 1.
Figure 17 for output shaft shown in working head with Figure 16 shown in Fig. 2 coordinate after schematic diagram.
Figure 18 is the schematic perspective view of the output shaft of power tool shown in the 7th kind of Fig. 1.
Figure 19 for output shaft shown in working head with Figure 18 shown in Fig. 2 coordinate after schematic diagram.
Figure 20 is the schematic perspective view of the output shaft of power tool shown in the 8th kind of Fig. 1.
Figure 21 for output shaft shown in working head with Figure 20 shown in Fig. 2 coordinate after schematic diagram.
The schematic diagram of Figure 22 rear other direction for output shaft shown in working head with Figure 20 shown in Fig. 2 coordinates.
Figure 23 is the front view of working head in second embodiment of the invention.
Figure 24 is the perspective exploded view of working head shown in Figure 23.
Figure 25 is the schematic perspective view of working head in third embodiment of the invention.
Figure 26 is the schematic perspective view of working head in four embodiment of the invention.
Related elements reference numeral in diagram is as follows:
100. working head 18. second body 332. projections
11. installation portion 181. mesopore 34. drive divisions
111. outward flange 182. flank 341. ring flanges
112. breach 183. recess 342. projections
113. dual-side 20. main frame 35. drive divisions
114. mating surface 200. Multi Role Aircraft 351. ring flanges
12. operate portions 21. locking part 352. protuberances
13. connecting portion 211. bolt 353. base portions
14. inner installing hole 212. pressing plate 354. spurs
141. centre bore 22. housing 36. drive divisions
142. protruding 23. output shaft 361. ring flanges
143. center 301. ring flange 362. protuberances
144. most advanced and sophisticated 302. projection 363. spurs
15. outside installing hole 303. center 37. drive divisions
151. perforate 304. center 371. ring flanges
152. center line 31. drive division 373. mating edges
153. inner section 311. ring flange 500. working heads
154. outer portion part 312. projection 51. installation portions
16. depressed part 32. drive division 52. the first noumenons
161. bottom surface 321. ring flange 520. centre bores
The inner installing hole of 162. the first side wall 322. projection 521.
The outside installing hole of 163. second sidewall 33. drive division 522.
17. the first noumenon 331. ring flange 53. second bodies
531. outside installing hole 622. second body 700. working heads
600. working head 623. inner installing hole 71. operate portions
61. operate portions 624. outside installing hole 72. connecting portion
62. installation portion 625. depressed part 73. installation portions
621. the first noumenon 626. centre bores
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
The invention provides one to can be applicable to swing the working head on class power tool (as Multi Role Aircraft) or rotary-type grinding power tool (as sander), this kind of working head has installation portion, its installation portion is provided with depressed part, and arranges inner installing hole on the bottom surface of depressed part.Depressed part and inner installing hole can connect with dissimilar output shaft respectively, thus working head of the present invention is installed on the dissimilar output shaft of at least two kinds of power tool, thus substantially increase the versatility of working head.
Refer to shown in Fig. 1 and Fig. 2, disclose a kind of working head 100 in the first embodiment of the present invention, be installed on Multi Role Aircraft 200.In present embodiment, working head 100 is a kind of straight blade specifically, for a person skilled in the art, is easy to expect, working head 100 also can be other annex, as saw blade, emery disc, scraper etc.Above-mentioned Multi Role Aircraft 200 comprises main frame 20 and for by fixing for working head 100 locking part 21 on host 20.
The swing torque that the exportable rotation of main frame 20 is reciprocal, it is included in the housing 22 shown in part and output shaft 23 in figure.Output shaft 23 is longitudinally arranged at the inside of housing 22, and its end extends housing 22 certain distance.Be provided with motor (not shown) in housing 22 and be connected to the eccentric drive mechanism (not shown) between the motor shaft of motor and output shaft 23, motor shaft drives output shaft 23 by eccentric drive mechanism, and makes output shaft 23 rotate oscillating traverse motion around the axis X of himself.Eccentric drive mechanism is the common structure that industry is applied to swing-type power tool, and in this not go into detail.
In present embodiment, when main frame 20 works, output shaft 23 rotates oscillating traverse motion around himself axis X with the high-frequency of about 5000 to 30000 times per minute, and is maintained at about the little pendulum angle between 0.5 to 7 degree.
Locking part 21 is through working head 100 and then be connected in output shaft 23, thus is fixed on by working head 100 on the drive division (not shown) of output shaft 23 end.This locking part 21 comprises bolt 211 and is set in the pressing plate 212 on bolt 211.In present embodiment, pressing plate 212 is an elastomeric pad, and relatively with bolt 211 is fixedly connected with, and can not be split.After locking part 21 is tightened, pressing plate 212 resilient abutment, in the side of working head 100, can prevent owing to causing working head 100 to get loose when reciprocal even impact type load.
Referring to figs. 2 to Fig. 4, working head 100 is arranged on the drive division of output shaft 23 end, the operate portions 12 that the installation portion 11 that it comprises with output shaft 23 connects is parallel with installation portion 11 and the connecting portion 13 between installation portion 11 and operate portions 12.The free end of operate portions 12 forms sawtooth, and the other end is then connected with connecting portion 13.Connecting portion 13 tilts to extend, and makes installation portion 11 and operate portions 13 be positioned at two planes paralleled.
In present embodiment, the installation portion 11 of working head 100 specifically comprises inner installing hole 14, centre bore 141 and outside installing hole 15, connects with the drive division dissimilar with output shaft 23.Centre bore 141 is arranged on the central authorities of installation portion 14, and has center 143, and inner installing hole 14 comprises from centre bore 141 outward extending some protruding 142.
The side that installation portion 11 is relative with operate portions 12 is formed with outward flange 111, outward flange 111 offers further the breach 112 roughly in " U " type.Breach 112 is just aligning the sawtooth to operate portions 12, and is communicated with centre bore 141, and it has the dual-side 113 be oppositely arranged, the angle that dual-side 113 is formed is 60 degree, when coordinating with output shaft 23 to make installation portion 11, side 113 can match with the drive division of output shaft 23, with transmitting torque.Obviously, the angle of breach 112 also can be set to other angle except 60 degree.
Projection 142 uniform intervals of inner installing hole 14 is arranged, and can coordinate to make working head 100 in multiple anglec of rotation with output shaft 23.In present embodiment, protruding 142 are specially five, are evenly distributed on the part beyond breach 112 on installation portion 11, are spaced apart 45 degree between adjacent protrusion 142.Wherein, three projections 142 at 90 degree, interval are through with outside installing hole 15 respectively, and other two projections 142 have circular arc tip 144.
Outside installing hole 15 comprises some perforates 151, these perforates 151 be distributed in the center 143 of centre bore 141 for the center of circle circumferentially, and evenly to arrange.In present embodiment, owing to being provided with breach 112 on installation portion 11, therefore, perforate 151 quantity of outside installing hole 15 is nine, and 30 degree, adjacent apertures 151 interval.Each perforate 151 all has the longitudinal centre line 152 through center 143, and perforate 151 relative centre line 152 is symmetrical arranged.Perforate 151 comprises the inner section 153 and outer portion part 154 that radial direction sets gradually, and inner section 153 compares outer portion part 154, closer to center 143.In addition, the cross section of inner section 153 is rectangle, and the cross section of outer portion part 154 is a circular part.The width of inner section 153 on the direction perpendicular to center line 152 is D1, and accordingly, the width of outer portion part 154 on the direction perpendicular to center line 152 is D2, and in present embodiment, D2 is greater than D1, thus can match with the difformity of output shaft 23.
Working head 100 in present embodiment, except there is the inside installing hole 14 and outside installing hole 15 that connect with dissimilar output shaft 23, also be provided with depressed part 16, the madial wall of depressed part 16 forms concrete shape, to connect with the output shaft 23 of respective type.
Installation portion 11 has the mating surface 114 perpendicular to axis X, and depressed part 16 axially forms to lower recess from mating surface 114.Depressed part 16 is arranged around centre bore 141, and it has the bottom surface 161 parallel with mating surface 114 and the sidewall perpendicular to bottom surface 161.Obviously, the sidewall of depressed part 16 also can be not orthogonal to bottom surface 161.In present embodiment, sidewall is specifically divided into some groups, often group comprises the first side wall 162 and the second sidewall 163, and the first side wall 162 and the second sidewall 163 lay respectively on the just dodecagonal limit centered by center 143, forms the angle of 150 degree between the first side wall 162 and the second sidewall 163.
As shown in Figure 5, in present embodiment, the installation portion 11 of working head 100 is formed by stacking by the first noumenon 17 and the second body 18, and form above-mentioned depressed part 16.Wherein, the bottom surface 161 of depressed part 16 is positioned on the first noumenon 17, and the first side wall 162 of depressed part 16 and the second sidewall 163 are formed on the second body 18.By carrying out split setting to installation portion 11, the processing of working head 100 can be made more convenient, and can ensure that the integral thickness of installation portion 11 is less simultaneously.In present embodiment, the thickness range of the first noumenon 17 and the second body 18 is 0.5 ~ 1 millimeter, and wherein, the first noumenon 17 is preferably 0.8 millimeter, the thickness of the second body 18 is preferably 0.6 millimeter, as long as ensure that the thickness of the second body 18 is 0.5 ~ 3 times of the thickness of the first noumenon 17.In addition, the installation portion of working head of the present invention is not limited to be that split is arranged, and also can be one-body molded.
The first noumenon 17 and the second body 18 all adopt tabular plate stamping to form, and are fixed together by the mode of Pressure Welding, can not be split.Other mode can certainly be adopted to be fixed together, and as riveted joint, bonding, bolt is fixing.The first noumenon 17 is intactly formed with centre bore 141, inner installing hole 14, outside installing hole 15 and breach 112, wherein, inner installing hole 14 comprises and to extend radially outwardly ground protruding 142 from centre bore 141, outside installing hole 15 comprises circumferentially nine perforates 151 that to be distributed in the center 143 of centre bore 141 be the center of circle, and three projections 142 being positioned at " ten " word direction are communicated with respectively with perforate 151.In addition, breach 112 is through with centre bore 141, and has dual-side 113.
Second body 18 is roughly square, and it is intactly formed with outside installing hole 15 and breach 112.Offer the mesopore 181 that size is greater than centre bore 141 in the middle part of second body 18, nine perforates 151 of outside installing hole 15 are all communicated with mesopore 181, then form eight flanks 182 between adjacent apertures 151.Each flank 182 is all formed with the first side wall 162 and second sidewall 163 of above described depressed part 16 towards the side of mesopore 181, the first side wall 162 and the second sidewall 163 form the wedge angle of 150 degree.In addition, there are two flanks 182 relative with the projection 142 of inner installing hole 14, and are formed with the circular arc-shaped recess 183 of mating with the tip 144 of protruding 142 respectively.Add man-hour, by the first noumenon 17 good for punching press and the axially superposition of the second body 18, alignd with the center of mesopore 181 in the center 143 of centre bore 141, and the perforate 151 of the outside installing hole 15 on the first noumenon 17 and the second body 18 is alignd respectively, finally, both are welded together.
The structure of above-detailed working head 100 and manufacturing process, the working head 100 of present embodiment owing to having possessed said structure, thus can coordinate with polytype output shaft 23.Below in conjunction with Fig. 6 to Figure 20, the situation that working head 100 drive division dissimilar with output shaft 23 coordinates is described respectively.
As shown in Figure 6 and Figure 7, the output shaft 23 of the first Multi Role Aircraft 200 has drive division 30, and this drive division 30 has ring flange 301 and from the axially extended some projections 302 of ring flange 301.Ring flange 301 cross section is circular, and has center 303.Projection 302 has 12, and cross section is rectangle, has center 304.The center 304 of 12 projections 302 be evenly distributed on center 303 for the center of circle circumferentially, therefore, 30 degree, interval between adjacent projection 302.
When working head 100 is mounted on output shaft 23, its outside installing hole 15 coordinates with the drive division 30 of output shaft 23.The projection 302 of drive division 30 is housed in the perforate 151 of outside installing hole 15 just, and is roughly positioned at the outer portion part 154 of perforate 151.Now, by coordinating of projection 302 and perforate 151, torque levels is passed on working head 100 by output shaft 23, thus drives working head 100 reciprocally swinging to realize the actions such as cutting.In addition, working head 100 can between 12 positions with drive division 30 rotatable engagement of output shaft 23, to realize the work of multi-angle.
As shown in Figure 8 and Figure 9, the output shaft 23 of the second Multi Role Aircraft 200 has drive division 31.Similar to the structure of drive division 30 shown in Fig. 6, drive division 31 has circular flange dish 311 and from axially extended 12 the rectangle projections 312 of ring flange 311.Difference is only, the center of projection 312 is less to the center distance of ring flange 311.Therefore, when working head 100 coordinates with drive division 31, projection 312 is roughly positioned at the inner section 153 of the perforate 151 of outside installing hole 15.Equally, working head 100 can 12 positions respectively with drive division 31 rotatable engagement of output shaft 23.
As shown in Figure 10 and Figure 11, the output shaft 23 of the third Multi Role Aircraft 200 has drive division 32.Similar to the structure of drive division 30 shown in Fig. 6, drive division 32 has circular flange dish 321 and axially extends some projections 322 from ring flange 321.Difference is only, projection 322 only has eight, and cross section is substantially oblong-shaped, and the center of projection 322 is less to the center distance of ring flange 311.These projections 322 one group between two, 90 degree, adjacent sets interval, and often organize 30 degree, interval between two projections 322 in projection 322.Obviously, working head 100 can eight positions respectively with drive division 32 rotatable engagement of output shaft 23.When working head 100 coordinates with drive division 32, projection 322 is roughly between the inner section 153 and outer portion part 154 of the perforate 151 of outside installing hole 15.
As shown in Figure 12 and Figure 13, the output shaft 23 of the 4th kind of Multi Role Aircraft 200 has drive division 33.Similar to drive division 32 structure shown in Figure 10, drive division 33 has circular flange dish 331 and axially extends some projections 332 from ring flange 331.Difference is only, projection 332 is four, and cross section is roughly rounded.Obviously, working head 100 can four positions respectively with drive division 33 rotatable engagement of output shaft 23.When working head 100 coordinates with drive division 33, projection 332 is roughly between the inner section 153 and outer portion part 154 of the perforate 151 of outside installing hole 15.
As shown in Figure 14 and Figure 15, the output shaft 23 of the 5th kind of Multi Role Aircraft 200 has drive division 34.Similar to drive division 30 structure shown in Fig. 6, drive division 34 has circular flange dish 341 and from the axially extended some projections 342 of ring flange 341.Difference is, projection 342 is arranged at the back side of ring flange 341, and projection 342 is round table-like, when working head 100 is installed, needs working head 100 is installed to output shaft 23 from the side of output shaft 23 by its breach 112.Obviously, working head 100 can 12 positions respectively with drive division 34 rotatable engagement of output shaft 23.When working head 100 coordinates with drive division 34, projection 342 is roughly positioned at the inner section 153 of the perforate 151 of outside installing hole 15.Cross section due to inner section 153 is a circular part, and therefore, the inner section 153 of projection 342 and perforate can closely cooperate, thus Absorbable organic halogens ground transmitting torque.
As shown in Figure 16 and Figure 17, the output shaft 23 of the 6th kind of Multi Role Aircraft 200 has drive division 35.Different from aforementioned drive division, the protuberance 352 that this drive division 35 comprises ring flange 351 and axially extends from the middle part of ring flange 351.Four circular arc spurs 354 that protuberance 352 comprises cylindrical base 353 and extends radially outwardly from base portion 353,90 degree, interval between adjacent spur 354 and connecting continuously.
When working head 100 coordinates with drive division 35, the common and protuberance 352 of centre bore 141 and inner installing hole 14 coordinates.Specifically, the base portion 353 of protuberance 352 coordinates with centre bore 141, and the spur 354 of protuberance 352 extends in the respective protrusions 142 of inner installing hole 14 respectively.By the cooperation of spur 354 with projection 142, output shaft 23 transfers a torque to working head 100 by drive division 35.Because the quantity of protruding 142 is five, therefore, working head 100 can five positions respectively with drive division 35 rotatable engagement of output shaft 23.
As shown in Figure 18 and Figure 19, the output shaft 23 of the 7th kind of Multi Role Aircraft 200 has drive division 36.Similar to the structure of drive division 35 shown in Figure 16, four protuberances 352 that this drive division 36 comprises ring flange 361 and axially extends from the middle part of ring flange 351.Arrange separately between adjacent tabs 352, and 90 degree, interval.The cross section of protuberance 362 is roughly triangular in shape, and it comprises the circular arc spur 363 extended radially outwardly.When working head 100 coordinates with drive division 36, the spur 363 of protuberance 362 extends in the respective protrusions 142 of inner installing hole 14 respectively.By the cooperation of spur 363 with projection 142, output shaft 23 transfers a torque to working head 100 by drive division 36.Equally, working head 100 can five positions respectively with drive division 36 rotatable engagement of output shaft 23.
As shown in Figure 20 to Figure 22, the output shaft 23 of the 8th kind of Multi Role Aircraft 200 has drive division 37.The protuberance 362 that drive division 37 comprises ring flange 371 and axially extends from ring flange 371, the cross section of protuberance 362 is regular hexagon, has six mating edges 373.After working head 100 is mounted to output shaft 23, the protuberance 362 of drive division 37 is housed in the depressed part 16 of installation portion 11 just, and the mating edge 373 of protuberance 362 can coordinate with the first side wall 162 of depressed part 16 or the second sidewall 163 respectively respectively.Therefore, working head 100 can nine positions respectively with drive division 36 rotatable engagement of output shaft 23.
In present embodiment, working head 100, by arranging inner installing hole 14 and outside installing hole 15, can coordinate with the dissimilar drive division of output shaft 23, to expand the versatility of working head 100.In addition, working head 100 arranges depressed part 16 further, depressed part 16 can coordinate with the correspondingly-shaped of the drive division of output shaft 23, thus further can improve the versatility of working head 100.Except arranging depressed part 16, working head of the present invention can also pass through alternate manner, to further expand the versatility of working head.
It may be noted that, working head of the present invention is not limited to the concrete structure of above-mentioned first embodiment, working head can not arrange breach, interval angles between the adjacent protrusion of the inside installing hole of working head also can select any one in 180 degree, 120 degree, 90 degree, 72 degree, 60 degree, 30 degree, is preferably less than or equal to 120 degree; Interval angles between the adjacent protrusion of the outside installing hole of working head also can select any one in 180 degree, 120 degree, 90 degree, 72 degree, 60 degree, 45 degree, is preferably less than or equal to 120 degree.Obviously, when working head structure changes, it needs respective change to the drive division shape of the output shaft of the power tool that should be able to connect.
As shown in figure 23 and figure 24, for the second embodiment of the present invention, the working head 500 of present embodiment is substantially identical with working head 100 structure of the first embodiment, and working head 500 comprises installation portion 51, and installation portion 51 is formed by stacking by the first noumenon 52 and the second body 53.The first noumenon 52 structure is identical with the first noumenon 17 structure of working head 100 in the first embodiment, which is provided with centre bore 520, inner installing hole 521 and outside installing hole 522.Second body 53 is provided with outside installing hole 531, and be with the second body 18 difference in the first embodiment, the cross section of outside installing hole 531 is roughly rectangular, and the width in its radial direction is constant, is 2.1 millimeters.Adopt the working head 500 of this kind of structure, when the drive division 34 of the output shaft 23 with the 5th kind of Multi Role Aircraft 200 shown in Figure 14 in the first embodiment coordinates, because the projection 342 of drive division 34 is round table-like, during assembling, projection 342 axially coordinates with the outside installing hole 522 of the first noumenon 52 and the outside installing hole 531 of the second body 53 successively, because outside installing hole 531 is narrower relative to outside installing hole 522 with the width of projection 342 cooperation position, working head 500 entirety is coordinated more closely, more stable with the drive division 34 of the 5th kind of output shaft 23.
In above-mentioned first and second embodiments, the working head disclosed is straight blade, but working head of the present invention is not limited to straight blade, also can be other annex that those skilled in the art are easy to expect, as saw blade, sand plate, scraper etc.Below in conjunction with Figure 25 and Figure 26, introduce the of the present invention 4th and the 5th embodiment, respectively for saw blade and sand plate.
As shown in figure 25, the 3rd embodiment of the present invention discloses a kind of working head 600 that can be installed on Multi Role Aircraft, specifically a kind of saw blade.This working head 600 is roughly in fan-shaped, and comprising radian is the fan-shaped operate portions 61 of 240 degree and the installation portion 62 that is connected in operate portions 61.Installation portion 62 is substantially identical with the structure of the installation portion 11 of the working head 100 in the first embodiment, be formed by stacking by the first noumenon 621 and the second body 622 equally, comprise inside installing hole 623, outside installing hole 624 and the depressed part 625 that can coordinate with the drive division of dissimilar Multi Role Aircraft output shaft, do not repeat them here.
As shown in figure 26, the 4th embodiment of the present invention discloses a kind of working head 700 that can be installed on Multi Role Aircraft, specifically a kind of sand plate.This working head 700 comprises operate portions 71 roughly triangular in shape, the connecting portion 72 be arranged in operate portions 71, and is connected to the installation portion 73 on connecting portion 72.Operate portions 71 is tabular, and connecting portion 72 upwards vertically extends from the mating surface of operate portions 71, and installation portion 73 is similarly tabular and shape is identical with installation portion 11 structure of working head 100 in the first embodiment, does not repeat them here.
It may be noted that, inside installing hole set by working head of the present invention and outside installing hole, the form of through hole can be arranged to, also the form of groove can be arranged to, as long as ensure that inner installing hole and outside installing hole can match with the cross sectional shape of the drive division of the output shaft of corresponding power tool.
Claims (10)
1. a working head, can be mounted on the output shaft of power tool, this working head comprises the installation portion coordinated with described output shaft, described installation portion is provided with has centre bore and outward flange, it is characterized in that: described installation portion also comprises from the breach of the through described centre bore of described outward flange and nine around the equally distributed perforate of described centre bore circumference.
2. working head as claimed in claim 1, it is characterized in that: described installation portion is provided with the some projections be communicated with described centre bore, described perforate is positioned at outside described some projections diametrically.
3. working head as claimed in claim 2, is characterized in that: three projections being arranged in " ten " word direction in described some projections are communicated with three perforates that described nine perforates are positioned at " ten " word direction.
4. working head as claimed in claim 2, is characterized in that: described some projections comprise first projection relative with described breach.
5. working head as claimed in claim 4, is characterized in that: described nine perforates comprise two symmetrically arranged perforates and the center line of the center of each perforate and described centre bore and described first projection is 30 degree of angles.
6. working head as claimed in claim 4, is characterized in that: described nine perforates comprise two symmetrically arranged perforates and the center line of the center of each perforate and described centre bore and described first projection is 60 degree of angles.
7. working head as claimed in claim 4, is characterized in that: described nine perforates comprise two and are symmetricly set on described breach both sides, and the center line of the center of each perforate and described centre bore and the first projection is 120 degree of angles arranges.
8. working head as claimed in claim 4, it is characterized in that: described some projections also comprise with described first projection respectively in 90 degree of two projections arranged, described some perforates comprise three perforates being positioned at " ten " word direction, and described two projections and described first projection are communicated with described three perforates respectively.
9. working head as claimed in claim 4, is characterized in that: described some projections also comprise two projections and are 45 degree relative to the circumferential angle at described center between each projection and described first projection.
10. working head as claimed in claim 1, is characterized in that: described nine perforate adjacent spaces 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510695003.6A CN105538240B (en) | 2011-11-11 | 2011-12-31 | Working head |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103573942 | 2011-11-11 | ||
| CN201110357394 | 2011-11-11 | ||
| CN201510695003.6A CN105538240B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201110459567.1A CN103101037B (en) | 2011-11-11 | 2011-12-31 | Working head |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459567.1A Division CN103101037B (en) | 2011-11-11 | 2011-12-31 | Working head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105538240A true CN105538240A (en) | 2016-05-04 |
| CN105538240B CN105538240B (en) | 2021-11-16 |
Family
ID=48309414
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688742.2A Pending CN105215949A (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510690267.2A Active CN105234903B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510402201.9A Active CN104985571B (en) | 2011-11-11 | 2011-12-31 | Work head |
| CN201110459567.1A Active CN103101037B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510694407.3A Active CN105234906B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510695003.6A Active CN105538240B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510695692.0A Pending CN105234904A (en) | 2011-11-11 | 2011-12-31 | Work head |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510688742.2A Pending CN105215949A (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510690267.2A Active CN105234903B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510402201.9A Active CN104985571B (en) | 2011-11-11 | 2011-12-31 | Work head |
| CN201110459567.1A Active CN103101037B (en) | 2011-11-11 | 2011-12-31 | Working head |
| CN201510694407.3A Active CN105234906B (en) | 2011-11-11 | 2011-12-31 | Working head |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510695692.0A Pending CN105234904A (en) | 2011-11-11 | 2011-12-31 | Work head |
Country Status (1)
| Country | Link |
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| CN (7) | CN105215949A (en) |
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| USD931069S1 (en) | 2019-05-03 | 2021-09-21 | Tti (Macao Commercial Offshore) Limited | Blade |
| WO2021189520A1 (en) * | 2020-03-24 | 2021-09-30 | 扬州昇业机械有限公司 | Multifunctional mounting hole for rapid mounting for oscillating tool |
| US11738398B2 (en) | 2020-11-18 | 2023-08-29 | Milwaukee Electric Tool Corporation | Accessory for an oscillating power tool |
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| CN104191419A (en) * | 2014-01-06 | 2014-12-10 | 蔡吕乾 | Rapid-mounting working head of multipurpose tool |
| CN103894988A (en) * | 2014-03-11 | 2014-07-02 | 蔡吕乾 | Quick-mounting working head for multipurpose tool |
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| CN106914864A (en) * | 2015-12-25 | 2017-07-04 | 苏州宝时得电动工具有限公司 | Work head |
| WO2017174344A1 (en) * | 2016-04-08 | 2017-10-12 | Robert Bosch Gmbh | Blade for oscillating tools having dual mounting configurations |
| CN105904414B (en) * | 2016-06-24 | 2018-09-07 | 扬州昇业机械有限公司 | A kind of Multifunctional rocking dynamic formula quick-loading tool head |
| DE102019212302A1 (en) * | 2019-08-16 | 2021-02-18 | Robert Bosch Gmbh | Processing tool, in particular oscillation processing tool |
| CN110394498B (en) * | 2019-08-19 | 2024-07-19 | 海联锯业科技有限公司 | Combined multifunctional saw blade and manufacturing method thereof |
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| CN113442097B (en) * | 2020-03-27 | 2022-07-12 | 苏州宝时得电动工具有限公司 | Working head and swing power tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105215949A (en) | 2016-01-06 |
| CN105234904A (en) | 2016-01-13 |
| CN105234906B (en) | 2021-09-07 |
| CN105538240B (en) | 2021-11-16 |
| CN103101037B (en) | 2015-11-25 |
| CN103101037A (en) | 2013-05-15 |
| CN104985571B (en) | 2017-05-03 |
| CN105234906A (en) | 2016-01-13 |
| CN105234903A (en) | 2016-01-13 |
| CN104985571A (en) | 2015-10-21 |
| CN105234903B (en) | 2021-08-10 |
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