CN102689262B

CN102689262B - Sanding working head and sanding tool using same

Info

Publication number: CN102689262B
Application number: CN201110069442.8A
Authority: CN
Inventors: 徐静涛; 吴宇
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2011-03-22
Filing date: 2011-03-22
Publication date: 2014-10-08
Anticipated expiration: 2031-03-22
Also published as: CN102689262A

Abstract

The invention relates to a sanding working head for grinding workpieces and a sanding tool using the same. The sanding working head comprises a sanding part, a connecting rod with a linearly reciprocating motion, and a movement-converting mechanism which is connected with the connecting rod. The movement-converting mechanism switches the linearly reciprocating motion of the connecting rod to a motion that the sanding part moves around a preset axis. The sanding tool comprises a reciprocating tool and the sanding working head connected therewith. The invention provides the sanding working head for the reciprocating tool. After cutting the workpieces by using the reciprocating tool, users can take off the saw blade and change the sanding working head to form the sanding tool, and grind the workpieces efficiently. The sanding working head and sanding tool using the same are convenient for use, and save cost for users with no need of buying specialized grinding tools to grind the surfaces of the workpieces.

Description

Frosted working head and use the sanding tool of this frosted working head

Technical field

The present invention relates to a kind of frosted working head that workpiece is polished.

The invention still further relates to a kind of sanding tool that workpiece is polished.

Background technology

Various reciprocal class instruments as sweep-saw, reciprocating saw etc. be conventional cutting tool, because this class instrument both can be processed into plane by surface of the work, also surface of the work can be processed into curved surface, therefore, back and forth class instrument is widely used in various occasions, and the workpiece of timber or other material is processed.

Back and forth class instrument generally comprises housing, be arranged on the motor in housing, the transmission mechanism that driven by motor, reciprocating reciprocating lever under transmission mechanism drives, this reciprocating lever one end is connected with transmission mechanism, the other end can drive working head, as saw blade etc. moves reciprocatingly, thereby workpiece is cut.

After workpiece is cut, its machined surface, especially in the time that processed surface is cut into curved surface, its surface smoothness does not generally also reach certain requirement, therefore, after workpiece being cut with various reciprocal class cutting tools, need to carry out grinding process to the surface to be machined of workpiece toward contact, so that smooth surface.

The useful sand paper of conventional polishing process carries out manual grinding, and also useful special milling tools is polished to surface of the work as skin grinder etc.Operate by hand sand paper and polish, not only waste time and energy, and efficiency is not high; Polish with special milling tools, need to buy these expensive specific purpose tools, this has increased consumer's economic pressures to a certain extent.

Summary of the invention

For the deficiencies in the prior art, the object of the present invention is to provide a kind of frosted working head easy to use.

For achieving the above object, the technical scheme that the present invention takes is:

A kind of frosted working head, comprise frosted part, it is characterized in that: described frosted working head also comprises the connecting rod of linear reciprocal movement, the movement conversion mechanism being connected with described connecting rod, described movement conversion mechanism is converted to described frosted part around a default axial-movement by the linear reciprocal movement of described connecting rod, described movement conversion mechanism comprises the impeller being driven by described connecting rod, the cam that is provided with the first cam surface and the second cam surface being driven by described impeller, when described connecting rod moves along first direction, described impeller is exerted pressure and is made described in described cam driven frosted part around described default axial-movement to described the first cam surface, when described connecting rod moves along second direction, described impeller is exerted pressure and is made described in described cam driven frosted part around described default axial-movement to described the second cam surface.

When described impeller is exerted pressure to described the first cam surface, described frosted part moves along the first rotation direction, when described impeller is exerted pressure to described the second cam surface, described frosted part moves along the second rotation direction, described the second rotation direction and described the first direction of rotation.

Described the first cam surface and described the second cam surface are oppositely arranged, and the cam path that described the first cam surface and described the second cam surface form circumferentially extends along the direction of described default axis.

Described the first cam surface and described the second cam surface are the spiral prominence wheel faces along described default Axis Extension, described the first cam surface is identical with the rotary orientation of described the second cam surface, and described the first cam surface and described the second cam surface small part that is projected in the plane perpendicular to described default axis overlaps.

When described connecting rod moves along described first direction, the single direction stroke of described impeller is positioned at the extended height of described the first cam surface on described default axis direction; When described connecting rod moves along described second direction, the single direction stroke of described impeller is positioned at the extended height of described the second cam surface on described default axis direction.

When described impeller is exerted pressure to described the first cam surface, described frosted part moves along the first rotation direction, when described impeller is exerted pressure to described the second cam surface, described frosted part moves along the second rotation direction, and described the second rotation direction is identical with described the first rotation direction.

Described the first cam surface and described the second cam surface are the spiral prominence wheel faces along described default Axis Extension, the rotary orientation of described the first cam surface and described the second cam surface is contrary, and described the first cam surface and described the second cam surface projection section in the plane perpendicular to described default axis overlaps.

Described impeller is when described first direction moves and drive described the first cam surface to move to its end of travel, and described impeller is crossed the starting point of described the second cam surface along the rotation direction of described frosted part.

Described cam comprises the first cam member and the second cam member that are oppositely arranged, described the first cam member and described the second cam member extend along the direction of described default axis, and described the first cam surface and described the second cam surface are separately positioned on distolateral relative with described the second cam member of described the first cam member.

Described impeller comprises symmetrically arranged the first impeller of relatively described default axis and the second impeller, on described cam, be provided with respectively and described the first cam surface and described the second cam surface circumferential symmetrically arranged the 3rd cam surface and the four-cam face with respect to described default axis, described in when described the first impeller drives described the first cam surface, the second impeller drives described the 3rd cam surface, when described the first impeller drives described the second cam surface described in the second impeller drive described four-cam face.

Described frosted working head also comprises the frosted part installation portion that described frosted part is installed, and described frosted part installation portion is arranged on described cam.

Between described frosted part installation portion and described frosted part, be provided with resilient sleeve, described frosted working head is respectively arranged with end cap and end seat at the two ends of described resilient sleeve, be also provided with the distance adjusting mechanism that regulates distance between described end cap and described end seat on described frosted working head.

Described impeller is rolling element, and the axis of described rolling element is vertical with described default axis.

Described connecting rod one end is connected with described movement conversion mechanism, and the end shape of the other end of described connecting rod is consistent with the end shape of one end that back and forth the standard operation head of class instrument is connected with reciprocal class instrument.

The present invention also aims to provide a kind of sanding tool easy to use.

A kind of sanding tool, above arbitrary described frosted working head that described sanding tool comprises reciprocal class instrument and is connected with described reciprocal class instrument, described reciprocal class instrument comprises the motor that output rotatablely moves, rotatablely moving of motor is converted to the reciprocating transmission mechanism of reciprocating lever, described reciprocating lever one end is connected with described transmission mechanism, the other end of described reciprocating lever is connected with saw blade clamping apparatus, and described connecting rod is connected with described saw blade clamping apparatus.

The end shape of one end that described connecting rod is connected with described saw blade clamping apparatus is consistent with the end shape of one end that the standard operation head of described reciprocal class instrument is connected with described saw blade clamping apparatus.

Described frosted working head also comprises described frosted working head is fixed on to the bearing on the housing of described reciprocal class instrument.

Compared with prior art, the invention has the beneficial effects as follows: the invention provides a frosted working head to reciprocal class instrument, user is after using this reciprocal class instrument to cut workpiece, take off saw blade, changing frosted working head can form sanding tool surface of the work is efficiently polished, facilitate consumer to use, and do not need to purchase again special milling tools surface of the work is polished, also can save consumer's expense.

Brief description of the drawings

Be described in further detail below in conjunction with accompanying drawing and the preferred embodiments of the present invention.

Fig. 1 is the front view of the frosted working head that provides of first embodiment of the invention;

Fig. 2 is the explosive view of the frosted working head shown in Fig. 1;

Fig. 3 is the cutaway view of the frosted working head shown in Fig. 1 along C-C direction;

Fig. 4 is the first view in the frosted working head motion process shown in Fig. 1, and now, the first impeller is positioned at the highest distance position away from bearing, for the clear motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Fig. 5 is the second view in the frosted working head motion process shown in Fig. 1, and now, the first impeller is positioned at the centre position of its stroke, for the clear motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Fig. 6 is the third state schematic diagram in the frosted working head motion process shown in Fig. 1, and now, the first impeller is positioned at the proximal most position near bearing, for the clear motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Fig. 7 is the schematic perspective view of the frosted working head shown in Fig. 1 and the sanding tool that back and forth class instrument connects and composes;

Fig. 8 is the front view of the frosted working head that provides of second embodiment of the invention;

Fig. 9 is the explosive view of the frosted working head shown in Fig. 8;

Figure 10 is the cutaway view of the frosted working head shown in Fig. 8 along A-A direction;

Figure 11 is the first view in the frosted working head motion process shown in Fig. 8, and now, the first impeller moves along the first direction of connecting rod axis, for clear its motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Figure 12 is the second view in the frosted working head motion process shown in Fig. 8, and now, the first impeller moves and drives the first cam surface along first direction, for clear its motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Figure 13 is the third state schematic diagram in the frosted working head motion process shown in Fig. 8, now, the first impeller drives the first cam surface to move to the end of travel of first direction, the first impeller is in the proximal most position near bearing, for clear its motion process that shows, frosted part installation portion and frosted part in figure, are concealed;

Figure 14 is the 4th view in the frosted working head motion process shown in Fig. 8, and now, the first impeller oppositely moves along second direction, for clear its motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Figure 15 is the 5th view in the frosted working head motion process shown in Fig. 8, and now, the first impeller moves and starts to drive the second cam surface along second direction, for clear its motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Figure 16 is the 6th view in the frosted working head motion process shown in Fig. 8, and now, the first impeller moves and further drives the second cam surface along connecting second direction, for clear its motion process that shows, has concealed frosted part installation portion and frosted part in figure;

Figure 17 is the 7th view in the frosted working head motion process shown in Fig. 8, now, the first impeller drives the second cam surface to move to the end of travel of second direction, the first impeller is in the highest distance position away from bearing, for clear its motion process that shows, frosted part installation portion and frosted part in figure, are concealed.

Wherein, related elements reference numeral is as follows:

100. frosted working head 30. cam 20. first cam members

21. first cam surface 23. the 3rd cam surface 24. Access Divisions

25. ring part 26. end seat 27. cannelures

28. step surface 31. cam paths

40. second cam member 42. second cam surface 44. four-cam faces

50. bracket component 51. rack body 52. openings

53. spline projection 54. annulus 55. chassis

56. felt piece 57. pad 58. collars

59. clutch shaft bearing assembly 61. second bearing assembly 62. bearings

63. bearing mouth 64. circular holes

80. reciprocal assembly 70. connecting rod 71. head rods

72. second connecting rod 73. slide block 74. first impellers

76. second impeller 78. open slot 79. bayonet locks

81. pin 90. cylindricality joint face 91. resilient sleeve

92. briquetting 93. collar 94. spaces

95. end cap 96. nut 97. connectors

98. frosted part installation portion 99. frosted parts

200. frosted working head 230. cam 231. cam paths

220. first cam member 221. first cam surface 223. the 3rd cam surfaces

224. Access Division

240. second cam member 242. second cam surface 244. four-cam faces

241. end seat 243. cannelure 246. holes

247. breach 248. perforates

250. bracket component 251. rack body 252. openings

253. spline projection 254. annulus 255. chassis

259. clutch shaft bearing assembly 261. second bearing assembly 262. bearings

263. bearing mouths

280. reciprocal assembly 270. connecting rod 273. slide blocks

274. first impeller 276. second impellers 281. are sold

290. cylindricality joint face 291. resilient sleeve 292. briquettings

297. latch 294. space 295. end caps

296. nut 293. connectors 298. grind part part installation portion

299. frosted parts

10. cutting machine 11. work tops

Detailed description of the invention

Fig. 1 to Fig. 7 shows the frosted working head 100 that first embodiment of the invention provides.

Refer to Fig. 1 to Fig. 4, the frosted working head 100 of the present embodiment mainly comprises reciprocal assembly 80, the cam 30 that is set in reciprocal assembly 80 outsides and is driven by reciprocal assembly 80, the frosted part installation portion 98 being connected with cam 30, is arranged on the frosted part 99 on frosted part installation portion 98.

Back and forth assembly 80 comprises connecting rod 70, and the connecting rod 70 of the present embodiment comprises head rod 71, the second connecting rod 72, the slide block 73 that head rod 71 and the second connecting rod 72 are fixed together.Concrete, the back and forth vibration-direction of assembly 80 of edge on slide block 73, be in the X-X direction shown in Fig. 2, to be symmetrically arranged with two open slots 78, one end that head rod 71 is relative with the second connecting rod 72 is fixed on slide block 73 by two bayonet locks 79 respectively, thereby make the axial alignment of head rod 71 and the second connecting rod 72, form connecting rod 70 axis X-X.The connecting rod 70 of the present embodiment is fitted together head rod 71 and the second connecting rod 72 by slide block 73, and each component processing difficulty is little, meanwhile, easy to assembly.

The connecting rod 70 of the present embodiment also can be by one-body molded to head rod 71 and the second connecting rod 72, and slide block 73 is arranged on integrated connecting rod; The present embodiment also can be by head rod 71, the second connecting rod 72, parts of the one-body molded formation of slide block 73; will not enumerate at this; as long as the function of its realization is same or similar with effect and the present invention of reaching, all should be covered by protection scope of the present invention.

Back and forth assembly 80 also comprises that the first impeller 74, the first impellers 74 on the slide block 73 that is arranged on connecting rod 70 are fixed on by pin 81 on a side surface of slide block 73, and the first impeller 74 is fixed on connecting rod 70 thus.For making stress equalization in reciprocal assembly 80 reciprocating motion processes, the reciprocal assembly 80 of the present embodiment also comprises that being symmetrically arranged with the second impeller 76, the second impellers 76 with the relative axis X-X of the first impeller 74 is fixed in both side surface relative on slide block 73 with the same pin 81 of the first impeller 74 use.

The first impeller 74 in the present embodiment and the second impeller 76 are rolling element, concrete, the first impeller 74 and the second impeller 76 are roller, the axis of roller is vertical with the axis X-X of connecting rod, the rolling element of other form, as rolling bearing, ball etc. all can reduce the friction between impeller and the cam surface of cam 30, reduce energy loss, improve the service life of frosted working head 100.

Referring to Fig. 2 and Fig. 4, the cam 30 of the present embodiment is set in reciprocal assembly 80 outsides, the main body of cam 30 is cylindric, in cam 30 main bodys, be provided with the first cam surface 21 and second cam surface 42 of the cam path 31 of formation, the first cam surface 21 and the second cam surface 42 are the spiral prominence wheel faces that extend along axis X-X, and the first cam surface 21 is identical with the rotary orientation of the second cam surface 42, the small part that is projected in the plane vertical with axis X-X overlaps the first cam surface 21 with the second cam surface, the first impeller 74 linear reciprocal movements can driven the first cam surface 21 and the second cam surface 42 make itself axis X-X motion of cam 3.

Corresponding with symmetrically arranged the first impeller 74 and the second impeller 76, on the cam 30 of the present embodiment, be also respectively arranged with and the first cam surface 21 and the second cam surface 42 circumferential symmetrically arranged the 3rd cam surface 23 and four-cam face 44 (not shown)s along axis X-X, the second impeller 76 can drive the 3rd cam surface 23 and four-cam face 44, concrete, in the time that the first impeller 74 exerts pressure to drive the first cam surface 21 to the first cam surface 21, the second impeller 76 synchronously exerts pressure to drive the 3rd cam surface 23 to the 3rd cam surface 23, in the time that the first impeller 74 exerts pressure to drive the second cam surface 42 to the second cam surface 42, the second impeller 76 synchronously exerts pressure to drive four-cam face 44 to four-cam face 44.Drive symmetrically arranged cam surface by symmetrically arranged the first impeller 74 and the second impeller 76, can prevent connecting rod 70 and cam 30 unbalance stress and occur the phenomenon of distortion, thereby making frosted working head 100 working stabilities, vibrate little.

In the present embodiment, back and forth assembly 80 is arranged on columned cam 30 main center, connecting rod 70, and cam 30, frosted working head 100 threes' dead in line, is the axis X-X in Fig. 1 to Fig. 6.Connecting rod 70 is made linear reciprocal movement along axis X-X, and axis X-X is the vibration-direction of connecting rod 70; Cam 30 is around axis X-X motion, and therefore axis X-X is also the pivot center of cam 30 and frosted part 99, each dead in line setting, and each component processing is assembled simple and stress equalization, frosted working head 100 motion stabilizations.Certainly, back and forth relative cam 30 eccentric settings of assembly 80 make the axis of connecting rod 70 and the parallel same outer sheathed frosted part of cam 30 that makes of the axis of cam 30 around a default axial-movement.

As shown in Figure 2, Figure 4 shows, the cam 30 of the present embodiment comprises the first cam member 20 and is oppositely arranged the second cam member 40, the first cam members 20 with the first cam member 20 and the second cam member 40 all extends setting along axis X-X.The first cam surface 21 and the 3rd cam surface 23 are arranged on distolateral relative with the second cam member 40 of the first cam member 20, the second cam surface 42 and four-cam face 44 are arranged on distolateral relative with the first cam member 20 of the second cam member 40, the second cam surface 42 and the first cam surface 21 are oppositely arranged the cam path 31 that formation can be moved for the first impeller 74, cam path 31 circumferentially extends along the direction of axis X-X, when cam path 31 extends along the direction of axis X-X along the circumferential extension of axis X-X; The 3rd cam surface 23 forms and can supply symmetrically arranged another cam path (not shown) of the second impeller 76 axis X-X relative to cam path 31 that move with four-cam face 44 simultaneously.So arrange, the cam surface that forms cam path is separately positioned on the first cam member 20 and the second cam member 40, and the processing of cam path is very simple, only need on the first cam member 20 and the second cam member 40, distinguish machining cam face.Certainly, directly on a cylindrical part, machining cam groove formation cam can be realized goal of the invention equally.

Referring to Fig. 2 and Fig. 4, the frosted part installation portion 98 of installation frosted part 99 is cylindric and is set in the outside of cam 30, the second cam member 40 and the one-body molded formation connector 97 of frosted part installation portion 98 in the present embodiment, thus, being arranged on the second distolateral cam surface 42 of the second cam member 40 and four-cam face 44 extends at connector 97 surface of internal cavity, connector 97 is set in the first cam member 20 outsides, the outer surface of connector 97 forms cylindricality joint face 90 and is connected with frosted part 99, the frosted part 99 of the present embodiment is cylindric and is set in cylindricality joint face 90 outsides, thus, frosted part 99 has cylindricality working face, this cylindricality working face contacts with the class liny that contacts of surface of the work, thus, no matter surface of the work is plane or cambered surface, the frosted working head 100 of the present embodiment all can effectively be polished to surface of the work, therefore, the frosted working head application of the present embodiment is very extensive.

The outer surface of frosted part 99 is other shape, and the cylindricality working face as coniform grade with circular cross-sectional shape can be polished and can not impact surface of the work workpiece equally.

Interchangeable, the second cam member 40 and the 98 split settings of frosted part installation portion also can, like this, the processing of the second cam member 40 and frosted part installation portion 98 is simpler.

Interchangeable, thereby frosted working head 100 also can directly be processed abrasive particle and form frosting on the outer surface of frosted part installation portion 98, thereby connector 97 itself forms frosted part, or, thereby the outer surface processing abrasive particle directly arranging outside cam path at cam 30 forms frosted part.

Referring to Fig. 2, Fig. 3, for fixing the first cam member 20 and connector 97, the end face that the first cam member 20 is oppositely arranged the ring part 25 of the distolateral other end of the first cam surface 21 and the 3rd cam surface 23 is provided with step surface 28, one distolateral 45 of connector 97 is connected on step surface 28, thereby the outer peripheral face of connector 97 aligns with the outer peripheral face of ring part 25, the outer peripheral face of the outer peripheral face of connector 97 and ring part 25 forms cylindricality joint face 90 jointly.Further, on the first cam member 20, be provided with Access Division 24, this Access Division 24 can connect and prevent that the first cam member 20 and connector 97 from relatively rotating with the groove (not shown) of connector 97 inner surfaces.

As shown in Figure 2 and Figure 3, frosted working head 100 also comprises the bracket component 50 of partly accommodating reciprocal assembly 80 supporting cam wheel 30 and frosted part installation portion 98.

Bracket component 50 has rack body 51, rack body 51 hollows along being symmetrically arranged with two openings 52 on the connecting rod 70 axis X-directions X shown in Fig. 2, back and forth assembly 80 can partly be housed in the cavity in rack body 51, and the first impeller 74 and the second impeller 76 can be given prominence to driving cam face from two openings 52.For making reciprocal assembly 80 move more smooth and easy, in the cavity of the present embodiment rack body 51 and back and forth, on assembly 80, be coated with lubricant grease, the position near chassis 55 in rack body 51 cavitys is disposed with felt piece 56, pad 57 and collar 58 in case leak-stopping oil.

Bracket component 50 can supporting cam wheel 30 and frosted part installation portion 98, concrete, the first cam member 20 hollows are also set in rack body 51 peripheries, the ring part 25 of the first cam member 20 is corresponding with the annulus 54 of rack body 51, is provided with clutch shaft bearing assembly 59 between the two to support the first cam member 20 and rack body 51.The connector 97 that the second cam member 40 and frosted part installation portion 98 one form is set in the first cam member 20 outsides and in the direction away from distolateral 45, exceeds the first cam member 20, and rack body 51 is also long compared with the first cam member 20 in the one end away from chassis 55, therefore connector 97 parts are directly set in rack body 51 peripheries, between rack body 51 and connector 97, be provided with the second bearing assembly 61 with support both of them, what so far, bracket component 50 was firm supports cam 30 and frosted part installation portion 98.

Frosted part 99 can directly be set on the cylindricality joint face 90 of frosted part installation portion 98, and for frosted part is better installed, the frosted working head 100 of the present embodiment is also provided with resilient sleeve 91 between cam 30 and frosted part 99.Referring to Fig. 2 and Fig. 3, the end seat 26 of the first cam member 20 is provided with cannelure 27 around ring part 25, the bottom 912 of resilient sleeve 91 can be inserted in cannelure 27, thus, on the end seat 26 that is connected to the first cam member 20 that the bottom 912 of resilient sleeve 91 is firm and be set on the outer surface of cylindricality joint face 90.The top 913 of resilient sleeve 91 is along exceeding connector 97 one end away from distolateral 45 in X-X direction, form space 94 between the two, on the top 913 of resilient sleeve 91, be provided with end cap 95, on frosted working head 100, be provided with the distance adjusting mechanism of distance between adjustable side seat 26 and end cap 95, preferably, this distance adjusting mechanism reduces the height in space 94 and makes resilient sleeve 91 axially compressed, and then makes resilient sleeve 91 be radially expanded the frosted part 99 that is located at resilient sleeve 91 outsides with tensioning sleeve.The distance adjusting mechanism of the present embodiment comprises the keeper with end cap and/or end seat butt, the cylindrical body of extending in the same way with resilient sleeve bearing of trend connecting with this keeper, regulating the position of keeper in cylindrical body is distance between the adjustable end seat 26 that is arranged on resilient sleeve 91 two ends and end cap 95.Concrete, rack body 51 has briquetting 92 away from one end butt of chassis 55, and because rack body 51 is housed in connector 97 away from one end of chassis 55, the disk 921 of briquetting 92 is also housed in connector 97.For fixing briquetting 92 and connector 97, briquetting 92 is extended with cylindrical portion 922 along axis X-X from disk 921, is arranged with collar 93 in cylindrical portion 922, and an end face of collar 93 is connected on disk 921, and the outer peripheral face of collar 93 is connected on the inner surface of connector 97.Cylindrical portion 922 exceeds connector 97 and resilient sleeve 91 1 segment distances in the direction away from disk 921, cylindrical portion 922 can be passed from the centre bore of ring-type end cap 95 951, the part that cylindrical portion 922 is stretched out end cap 95 is arranged with nut 96, nut 96 and end cap 95 butts, the position of nut 96 in cylindrical portion 922 is adjustable, concrete, fastening nut 96 can make end cap 95 move towards the direction by proximal seat 26, reduce thus end cap 95 and the distance of holding seat 26, compress space 94, resilient sleeve 91 is radially expanded, the outer sheathed frosted part 99 of securable resilient sleeve 91, thereby prevent frosted part come off cause polishing work interrupt.

The present embodiment is the position adjustments end cap 95 in the cylindrical portion 922 of briquetting 92 and the distance of holding seat 26 by adjusting nut; interchangeable; the height of extending bracket main body 51; make rack body 51 exceed connector 97 away from one end of chassis 55; the position of adjusting nut 96 on rack body 51 also can make resilient sleeve 91 that deformation occurs; the distance adjusting mechanism of other form will not enumerate at this; as long as the function of its realization is same or similar with effect and the present invention of reaching, all should be covered by protection scope of the present invention.

Referring to Fig. 2 and Fig. 4, the frosted working head 100 of the present embodiment also comprises frosted working head 100 is fixed on to the bearing 62 on reciprocal class instrument, on bearing 62, offer circular hole 64, thereby can bearing 62 be fixed on parts such as screws by circular hole 64 on the housing of reciprocal class instrument, frosted working head 100 is firmly connected with reciprocal class instrument.On bearing 62, be provided with bearing mouth 63, rack body 51 can pass bearing mouth 63, the chassis 55 of rack body 51 is connected on the basal surface of bearing 62, rack body 51 is also provided with at least one spline projection 53 through the part of bearing mouth 62, and spline projection 53 can coordinate to prevent that rack body 51 from rotating relative to bearing 62 with the groove in bearing mouth 63.

The motion process of frosted working head 100 refers to Fig. 4 to Fig. 6.

Connecting rod 70 linear reciprocal movements of the frosted working head 100 of the present embodiment, the movement conversion mechanism that comprises the impeller being driven by connecting rod 70 and the cam 30 being driven by impeller is converted to frosted part 99 around a default axis rotary oscillation by the linear reciprocal movement of connecting rod 70, simple in structure, reliable.

As shown in Figure 4, when connecting rod 70 moves along the first direction of axis X-X upward arrow A indication, thereby thereby the first impeller 74 is exerted pressure and is driven the first cam surface 21 the first rotation direction of the arrow R1 indication of cam 30 in Fig. 4 to be moved make to be set in frosted part 99 outside cam 30 to be synchronized with the movement and to surface of the work polish (for the clear motion process that shows, having concealed the frosted part installation portion 98 and the frosted part 99 that are set in outside cam 30 in Fig. 4 to Fig. 6) to the first cam surface 21.Connecting rod 70 continues mobile, in the time moving to nearest the first extreme position of the first impeller 74 as shown in Figure 6 and bearing 62, connecting rod 70 oppositely moves along the second direction of axis X-X upward arrow B indication, thereby thereby the first impeller 74 will exert pressure and drive the second cam surface 42 to make cam 30 move the outer sheathed frosted part 99 of cam 30 is polished to surface of the work along the second rotation direction of arrow R2 indication to the second cam surface 42 being oppositely arranged with the first cam surface 21.The first direction of rotation of the second rotation direction of arrow R2 indication and arrow R1 indication, the first rotation direction R1 and the second rotation direction R2 are circumferential along axis X-X's.Connecting rod 70 continues to move along the second direction of arrow B indication, in the time of the second extreme position farthest of the distance that moves to the first impeller 74 as shown in Figure 4 and bearing 62, connecting rod 70 changes the direction of motion again, again move along the first direction of arrow A indication, make the first impeller 74 drive the first cam surface 21 that frosted part 99 is moved along the first rotation direction of arrow R1 indication again.

Fig. 4, Fig. 5 and Fig. 6 order shows connecting rod 70 while moving along the first direction of arrow A indication, and the first impeller 74 promotes the first cam surface 21 makes cam 30 along the state variation schematic diagram in the first rotation direction R1 rotation process; Fig. 6, Fig. 5 and Fig. 4 order shows connecting rod 70 while moving along the second direction of arrow B indication, and the first impeller 74 promotes the second cam surface 42 makes cam 30 along the state variation schematic diagram in the second rotation direction R2 rotation process.Like this, in the time that connecting rod 70 moves back and forth along the first direction of axis X-X upward arrow A indication and the second direction of arrow B indication repeatedly, the first cam surface 21 and second cam surface 42 that can drive the first impeller 74 driven to be oppositely arranged, thus make cam 30 constantly change rotation direction and then form continuous rotary oscillation so that the outer sheathed frosted part 99 of cam 30 is polished to workpiece.

Fig. 4 to Fig. 6 only shows the first impeller 74 and drives the first cam surface 21 and the second cam surface 42 to make the process of frosted working head 100 state variation, be understandable that, in the time that the first impeller 74 drives the first cam surface 21, drive with the first cam surface 21 along circumferentially symmetrically arranged the 3rd cam surface of axis X-X with symmetrically arranged the second impeller 76 of the relative axis X-X of the first impeller 74 is synchronous; In the time that the first impeller 74 drives the second cam surface 42, drive with the second cam surface 21 along circumferentially symmetrically arranged four-cam face 44 of axis X-X with symmetrically arranged the second impeller 76 of the relative axis X-X of the first impeller 74 is synchronous, so arrange, cam 30 stress equalizations, frosted working head 100 is stable.

The present embodiment also can be regarded the first impeller 74 and the second cam surface 42 as resetting-mechanism, when connecting rod 70 moves along the first direction of axis X-X upward arrow A indication, the first impeller 74 drives the first cam surface 21 to make cam 30 turn to ad-hoc location along the first rotation direction of arrow R1 indication; When connecting rod 70 oppositely moves along the second direction of axis X-X upward arrow B indication, resetting-mechanism resets cam 30 reversions, concrete, and the first impeller 74 drives the second cam surface 42 that frosted working head is resetted from above-mentioned ad-hoc location reversion.

In the present embodiment, no matter connecting rod 70 still moves towards second direction along axis X-X towards first direction, and the first 74 of promotions disposed thereon all can move frosted working head 100 by driving cam face, and efficient work is stable.

In the time that connecting rod 70 drives the first impeller 74 to drive the first cam surface 21 to run to the first impeller 74 as shown in Figure 6 in proximal most position near bearing 62, if connecting rod 70 can also continue to move towards the first direction of arrow A indication, may make the first impeller 74 contact with the terminal surface 22 perpendicular to axis X-X, now the first impeller 74 no longer promotes the first cam surface 21 cam 30 is rotated, and terminal surface 22 also can hinder the first impeller 74 and continues to move along first direction, connecting rod 70 is stop motion, thereby frosted working head 100 is quit work.In like manner, connecting rod 70 drives the first impeller 74 to drive the second cam surface 42 to run to the first impeller 74 as shown in Figure 4 in the time of highest distance position away from bearing 62, if when connecting rod 70 continues to move along the second direction of arrow B indication, there will be equally the problem at this " dead point ".

For preventing that this situation from occurring, the present embodiment, when the first impeller 74 moves along the first direction of arrow A indication, its single direction stroke is positioned at the first cam surface 21 along the extended height on frosted working head 100 axis X-directions X, that is to say, when the first impeller 74 moves along first direction, it contacts and drives the first cam surface 21 all the time with the first cam surface 21; When the first impeller 74 moves along the second direction of arrow B indication, its single direction stroke is positioned at the second cam surface 42 along the extended height on frosted working head 100 axis X-directions X, that is to say, when the first impeller 74 moves along second direction, it contacts and drives the second cam surface 42 all the time with the second cam surface 42.

As shown in Figure 4, the first impeller 74 is positioned at the highest distance position away from bearing 62, and this position is that the first actuator 74 drives the second cam surface 42 to move to the position of its second cam surface 42 ends, and now the first impeller 74 and the second cam surface 42 exist contact point; To change the direction of motion with rear connecting rod 70, this position is also the first impeller 74 drives the first cam surface 21 position since the top of the first cam surface 21, between the first impeller 74 and the first cam surface 21, there is contact point, that is to say, when the first impeller 74 moves to away from the highest distance position of bearing 62, it is still arranged in the cam path 31 that the first cam surface 21 and the second cam surface 42 form, and the first impeller 74 is positioned at the projection of cam path 31 at axis X-X in the projection of axis X-X.As shown in Figure 6, in the time that the first impeller 74 is positioned at the proximal most position of close bearing 62, the first impeller 74 all contacts with the second cam surface 42 with the first cam surface 21, and the first impeller 74 is positioned at the projection of cam path 31 at axis X-X in the projection of axis X-X.The first impeller 74 is all positioned at the projection of cam path 31 at axis X-X along the two limit positions in axis X-X reciprocating motion process, and the whole reciprocating stroke of the first impeller 74 is positioned at the extended height of cam path 31 on axis X-directions X so.

The present embodiment the first impeller 74 is roller, its external diameter is advisable than little 0 to 5 millimeter of the width of cam path 31, the in the situation that of good lubrication, preferably the external diameter of roller 74 equals the width of cam path 31, like this, the first impeller 74 transfers to and promotes the second cam surface 42 or transfer to and promoting when the first cam surface 21 from promoting the second cam surface 42 by promoting the first cam surface 21, can not cause shock to the cam surface after conversion, and frosted working head 100 is operated steadily.Due to the problem of lubricated or the accuracy of manufacture and assembling, consistent the acquiring a certain degree of difficulty of width of the external diameter of the first impeller 74 and cam path 31, therefore, the external diameter of the first impeller 74 than the width of cam path 31 smaller to manufacture and assembling require low, meanwhile, vibration also within the acceptable range.

Fig. 7 is the in running order schematic diagram of frosted working head 100 of the present embodiment, as shown in Figure 7, the circular hole 64 that passes bearing 62 with screw can be fixed on frosted working head 100 on the work top 11 of cutting machine 10, work top 11 is arranged with inverted sweep-saw, this sweep-saw comprises housing, be arranged on the motor in housing, the transmission mechanism that driven by described motor, reciprocating reciprocating lever under described transmission mechanism drives, described reciprocating lever one end is connected with transmission mechanism, the other end is provided with saw blade clamping apparatus, this saw blade clamping apparatus and working head, as connections such as saw blades, when by saw blade when saw blade clamping apparatus takes off, thereby the saw blade clamping apparatus of sweep-saw can be connected with the connecting rod of frosted working head 100 70 formation sanding tool, back and forth the reciprocating motion of the reciprocating lever of class instrument output can drive the frosted part 99 of frosted working head 100 around a default axial-movement, thereby workpiece is polished.The cutting machine 10 of the present embodiment is desk-top reciprocating cutting machine, and work top 21 can be considered the housing of cutting machine 10.

The cutting machine 10 that the frosted working head 100 of the present embodiment is not limited to as shown in Figure 7 drives, and the reciprocal class instrument of any type is as sweep-saw, and reciprocating saw etc. all can drive the frosted working head 100 of the present embodiment.The frosted working head 100 of the present embodiment preferably with reciprocal removable being connected of class instrument, like this, a frosted working head 100 can be arranged on multiple reciprocal class instruments; And reciprocal class instrument is except driving the frosted working head 100 of the present embodiment, also can drive other working head, as saw blade etc., thus frosted working head 100 or back and forth class instrument all can use in occasion widely no matter.But the frosted working head 100 of the present embodiment also can be fixedly connected with reciprocal class instrument, thereby this reciprocal class instrument only configures power and the transmission mechanism of enough driving frosted working heads 100, also without other functional unit is set, therefore, this sanding tool is simple in structure, with low cost.

What deserves to be explained is, the connecting rod 70 of the present embodiment can, by reciprocal class tool drives, can improve grinding efficiency like this, alleviates workload simultaneously.Connecting rod 70 is during by reciprocal class tool drives, connecting rod 70 is consistent with the end shape of one end that the end shape of one end that back and forth saw blade clamping apparatus of class instrument is connected is preferably connected with saw blade clamping apparatus with the standard operation head (as saw blade) of reciprocal class instrument, can make like this frosted working head 100 well mate with the output of reciprocal class instrument.As shown in Figure 1, the shape of the end 721 of the connecting rod 70 of the present embodiment is consistent away from the end shape of sawtooth portion with the saw blade of calibration curve saw, the end shape of one end that namely saw blade is connected with the saw blade clamping apparatus of sweep-saw is consistent, therefore, the frosted working head of the present embodiment can with good the mating of various sweep-saws.

In the time of the reciprocal class instrument without available, thereby connecting rod 70 also can manual actuation make frosted working head 100 polish to workpiece, makes like this frosted working head application of the present embodiment very extensive.

Fig. 8 to Figure 17 shows the frosted working head 200 that second embodiment of the invention provides.

Referring to Fig. 8, Fig. 9 and Figure 11, the frosted working head 200 of the present embodiment mainly comprises reciprocal assembly 280, the cam 230 that is set in reciprocal assembly 280 outsides and is driven by reciprocal assembly 280, the frosted part installation portion 298 being connected with cam 230, is arranged on the frosted part 299 on frosted part installation portion 298.

Reciprocal assembly 280 comprises can be along contrary first direction and the reciprocating connecting rod 270 of second direction line, the first impeller 274 being driven by connecting rod 270, thereby the first impeller 274 is fixedly installed on by pin 281 on the side surface on the slide block 273 of connecting rod 270 and is fixed on connecting rod 270, for making stress equalization in reciprocal assembly 280 reciprocating motion processes, the reciprocal assembly 280 of the present embodiment also comprises with the axis X-X of the relative connecting rod 270 of the first impeller 274 and is symmetrically arranged with the second impeller 276, the second impeller 276 is fixed in both side surface relative on slide block 273 with the same pin 281 of the first impeller 274 use.

The first impeller 274 in the present embodiment and the second impeller 276 are rolling element, concrete, the first impeller 274 and the second impeller 276 are roller, the axis of roller is vertical with the axis X-X of connecting rod 270, the rolling element of other form, as rolling bearing, ball etc. all can reduce the friction between impeller and the cam surface of cam 230, reduce energy loss, improve the service life of frosted working head 200.

As Fig. 9, shown in Figure 12, the cam 230 of the present embodiment is set in reciprocal assembly 280 outsides, the main body of cam 230 is cylindric, in cam 230 main bodys, be provided with forming section cam path 231 first cam surfaces 221 and the second cam surface 242, the first cam surface 221 and the second cam surface 242 are the spiral prominence wheel faces that extend along axis X-X, and the rotary orientation of the first cam surface 221 and the second cam surface 242 is contrary, the first cam surface 221 overlaps with the projection section of the second cam surface 242 in the plane vertical with axis X-X, connecting rod 270 linear reciprocal movements can drive the first impeller 274 orders to drive the first cam surface 221 and the second cam surface 242 to make the axis X-X motion of cam 230 around itself.

Corresponding with symmetrically arranged the first impeller 274 and the second impeller 276, referring to Figure 12, on the cam 230 of the present embodiment, be also respectively arranged with and the first cam surface 221 and the second cam surface 242 circumferential symmetrically arranged the 3rd cam surface 223 and the four-cam face 244 along axis X-X, the second impeller 276 can drive the 3rd cam surface 223 and four-cam face 244, concrete, in the time that the first impeller 274 exerts pressure to drive the first cam surface 221 to the first cam surface 221, the second impeller 276 synchronously exerts pressure to drive the 3rd cam surface 223 to the 3rd cam surface 223, in the time that the first impeller 274 exerts pressure to drive the second cam surface 242 to the second cam surface 242, the second impeller 276 synchronously exerts pressure to drive four-cam face 244 to four-cam face 244.Drive symmetrically arranged cam surface by symmetrically arranged the first impeller 274 and the second impeller 276, can prevent connecting rod 270 and cam 230 unbalance stress and occur the phenomenon of distortion, thereby making frosted working head 200 working stabilities, vibrate little.

In the present embodiment, back and forth assembly 280 is arranged on columned cam 230 main center, connecting rod 270, and cam 230, frosted working head 200 threes' dead in line, is the axis X-X in Fig. 8 to Figure 17.Connecting rod 270 is made linear reciprocal movement along axis X-X, and axis X-X is the vibration-direction of connecting rod 270; Cam 230 is around axis X-X motion, and therefore axis X-X is also the pivot center of cam 230 and frosted part 299, each dead in line setting, and each component processing is assembled simple and stress equalization, frosted working head 200 motion stabilizations.Certainly, thus back and forth relative cam 230 eccentric settings of assembly 280 make the axis of connecting rod 270 and the parallel same outer sheathed frosted part of cam 230 that makes of the axis of cam 230 polish to surface of the work around a default axial-movement.

As shown in Fig. 9, Figure 12, the cam 230 of the present embodiment comprises the first cam member 220 and is oppositely arranged the second cam member 240, the first cam members 220 with the first cam member 220 and the second cam member 240 all extends setting along axis X-X.The first cam surface 221 and the 3rd cam surface 223 are arranged on distolateral relative with the second cam member 240 of the first cam member 220, the second cam surface 242 and four-cam face 244 are arranged on distolateral relative with the first cam member 220 of the second cam member 240, the first cam surface 221, the second cam surface 242, the 3rd cam surface 223, four-cam face 244 order circumferentially extends spirally along axis X-X's the cam path 231 that formation can be moved for the first impeller 274 and the second impeller 276, the rotary orientation projection section contrary and in the plane perpendicular to axis X-X of two adjacent cam surfaces overlaps.So arrange, the cam surface that forms cam path is separately positioned on the first cam member 220 and the second cam member 240, and the processing of cam path is very simple, only need on the first cam member 220 and the second cam member 240, distinguish machining cam face.Certainly, directly on a cylindrical part, machining cam groove formation cam can be realized goal of the invention equally.

Referring to Fig. 9 and Figure 12, the frosted part installation portion 298 of installation frosted part 299 is cylindric and is set in the outside of cam 230, the second cam member 240 and the one-body molded formation connector 293 of frosted part installation portion 298 in the present embodiment, thus, being arranged on the second distolateral cam surface 242 of the second cam member 240 and four-cam face 244 extends at connector 293 surface of internal cavity, connector 293 is set in the first cam member 220 outsides, the outer surface of connector 293 forms cylindricality joint face 290 and is connected with frosted part 299, the frosted part 299 of the present embodiment is cylindric and is set in cylindricality joint face 290 outsides, thus, frosted part 299 has cylindricality working face, this cylindricality working face contacts with the class liny that contacts of surface of the work, thus, no matter surface of the work is plane or cambered surface, the frosted working head 200 of the present embodiment all can effectively be polished to surface of the work, therefore, the frosted working head application of the present embodiment is very extensive.

The outer surface of frosted part 299 is other shape, and the cylindricality working face as coniform grade with circular cross-sectional shape can be polished and can not impact surface of the work workpiece equally.

Interchangeable, the second cam member 240 and the 298 split settings of frosted part installation portion also can, like this, the processing of the second cam member 240 and frosted part installation portion 298 is simpler.

Interchangeable, thereby frosted working head 200 also can directly be processed abrasive particle and form frosting on the outer surface of frosted part installation portion 298, thereby connector 293 itself forms frosted part, or, thereby the outer surface processing abrasive particle directly arranging outside cam path at cam 230 forms frosting.

Referring to Fig. 9, for fixing the first cam member 220 and connector 293, the first cam member 220 is oppositely arranged on the distolateral other end of the first cam surface 221 and the 3rd cam surface 223 and is provided with Access Division 224, Access Division 224 can be leaned in the perforate 248 of proximal seat 241 1 sides by Snap joint body 293, thereby prevents that the first cam member 220 and connector 293 from relatively rotating.

As shown in Figure 9, Figure 10, frosted working head 200 also comprises that part accommodates reciprocal assembly 280 and bracket component 250.Bracket component 250 comprises rack body 251, rack body 251 hollows along being symmetrically arranged with two openings 252 on axis X-directions X, back and forth assembly 280 can partly be housed in the cavity in rack body 251, and the first impeller 274 and the second impeller 276 can be given prominence to driving cam face from two openings 252.For making reciprocal assembly 280 move more smooth and easy, in the cavity of the present embodiment rack body 251 and back and forth, on assembly 280, be coated with lubricant grease, the position near chassis 255 in rack body 251 cavitys is disposed with felt piece, pad and collar in case leak-stopping oil.

Bracket component 250 also can supporting cam wheel 230 and frosted part installation portion 298, concrete, the first cam member 220 hollows are also set in rack body 251 outsides, are arranged with clutch shaft bearing assembly 259 to support the first cam member 220 and rack body 251 on the annulus 254 of rack body 251.The connector 293 being made up of the second cam member 240 and frosted part installation portion 298 one is set in the first cam member 220 outsides and exceeds the first cam member 220 in the direction away from end seat 241, and rack body 251 is also long compared with the first cam member 220 in the one end away from chassis 255, therefore connector 293 parts are directly set in rack body 251 outsides, between rack body 251 and connector 293, be provided with the second bearing assembly 261 with support both of them, what so far, bracket component 250 was firm supports cam 230 and frosted part installation portion 298.

Frosted part 299 can directly be set on the cylindricality joint face 290 of frosted part installation portion 298, and for frosted part 299 is better installed, the frosted working head 200 of the present embodiment is also provided with resilient sleeve 291 between cam 230 and frosted part 299.Referring to Fig. 9 and Figure 10, the end seat 241 of the second cam member 240 is provided with cannelure 243 around cylindricality joint face 290, the bottom 2912 of resilient sleeve 291 can be inserted in cannelure 243, thus, the bottom 2912 of resilient sleeve 291 is connected on the end seat 241 of the second cam member 240 and is set on the outer surface of cylindricality joint face 290.The top 2913 of resilient sleeve 291 is along exceeding connector 293 one end away from end seat 241 in X-X direction, form space 294 between the two, on the top 2913 of resilient sleeve 291, be provided with end cap 295, on frosted working head 200, be provided with the distance adjusting mechanism of distance between adjustable side seat 241 and end cap 295, preferably, this distance adjusting mechanism reduces the height in space 294 and makes resilient sleeve 291 axially compressed, and then makes resilient sleeve 291 be radially expanded the frosted part 299 that is located at resilient sleeve 291 outsides with tensioning sleeve.The distance adjusting mechanism of the present embodiment comprises the keeper with end cap and/or end seat butt, the cylindrical body of extending in the same way with resilient sleeve bearing of trend connecting with this keeper, regulating the position of keeper in cylindrical body is distance between the adjustable end seat 241 that is arranged on resilient sleeve 291 two ends and end cap 295.Concrete, rack body 251 has briquetting 292 away from one end butt of chassis 255, and because rack body 251 is housed in connector 293 away from one end of chassis 255, the base plate 2921 of briquetting 292 is also housed in connector 293.For fixing briquetting 292 and connector 293, the base plate 2921 of briquetting 292 is first-class is arranged at intervals with 4 fixture blocks 2923,4 fixture blocks 2923 can 4 breach 247 of Snap joint body 293 away from end seat 241 one end in, now, briquetting 292 can not rotate relative to connector 293, two latches 297, through the hole 246 of offering on connector 293, pass the base plate 2921 of briquetting 292 simultaneously, thereby prevent that briquetting 292 and connector 293 from producing and relatively moving at axis X-directions X.Briquetting 292 is extended with cylindrical portion 2922 from base plate 2921, cylindrical portion 2922 exceeds connector 293 and resilient sleeve 291 1 segment distances in the direction away from base plate 2921, cylindrical portion 2922 can be passed from the centre bore of end cap 295 2951, cylindrical portion 2922 is stretched out in the part of end cap 295 and is provided with nut 296, nut 296 and end cap 295 butts, the position of nut 296 in cylindrical portion 2922 is adjustable, concrete, fastening nut 96 can make end cap 295 move towards the direction by proximal seat 241, reduce thus end cap 295 and the distance of holding seat 241, compress space 294, resilient sleeve 291 is radially expanded, the outer sheathed frosted part of securable resilient sleeve 291, thereby preventing that frosted part from coming off causes the interruption of polishing work.

The present embodiment is the position adjustments end cap 295 in the cylindrical portion 2922 of briquetting 292 and the distance of holding seat 241 by adjusting nut; interchangeable; the height of extending bracket main body 251; make rack body 251 exceed connector 293 away from one end of chassis 255; the position of adjusting nut 296 on rack body 251 also can make resilient sleeve 291 that deformation occurs; the distance adjusting mechanism of other form will not enumerate at this; as long as the function of its realization is same or similar with effect and the present invention of reaching, all should be covered by protection scope of the present invention.

Referring to Fig. 9 and Figure 11, the frosted working head 200 of the present embodiment also comprises frosted working head 200 is fixed on to the bearing 262 on reciprocal class instrument, on bearing 262, can offer circular hole (not shown), thereby can bearing 262 be fixed on parts such as screws by circular hole on the housing of reciprocal class instrument frosted working head 200 with back and forth class instrument is firmly fixing.On bearing 262, be provided with bearing mouth 263, rack body 251 can pass bearing mouth 263, the chassis 255 of rack body 251 is connected on the basal surface of bearing 262, rack body 251 is also provided with at least one spline projection 253 through the part of bearing mouth 263, and spline projection 253 can coordinate to prevent that rack body 251 from rotating relative to bearing 262 with the groove in bearing mouth 263.

The concrete motion process of frosted working head 200 refers to Figure 11 to Figure 17.

Connecting rod 270 linear reciprocal movements of the frosted working head 200 of the present embodiment, the movement conversion mechanism that comprises the impeller that connecting rod 270 drives and the cam 230 being driven by impeller is converted to frosted part 299 by the linear reciprocal movement of connecting rod 270 and rotates around a default axis, simple in structure, reliable.

As shown in figure 11, connecting rod 270 will move along the first direction of axis X-X upward arrow A indication, thereby connecting rod 270 will drive the first impeller 274 to exert pressure and drive the first cam surface 221 that cam 230 is rotated along the 3rd rotation direction of arrow R3 indication to the first cam surface 221, thereby make to be set in frosted part 299 outside cam 230 and be synchronized with the movement that surface of the work is polished (is the clear motion process that shows, Figure 11 to Figure 17 has concealed the frosted part installation portion 298 and the frosted part 299 that are set in outside cam 230), although not shown, be understandable that, to synchronously promote circumferentially symmetrically arranged the 3rd cam surface 223 with the relative axis X-X of the first cam surface 221 with symmetrically arranged the second impeller 276 of the relative axis X-X of the first impeller 274, make frosted working head 200 force balances, slow-roll stabilization.As shown in figure 13, in the time that the first impeller 274 runs to its end of travel along the first direction of arrow A indication, to oppositely move along the second direction of axis X-X upward arrow B indication, as shown in Figure 15, Figure 16, the first impeller 274 will drive the second cam surface 242, meanwhile, the second impeller 276 makes cam 230 continue to rotate along the 3rd rotation direction of arrow R3 indication in figure by synchronously driving with the 2nd four-cam face 244.As shown in figure 17, in the time that the first impeller 274 moves to its end of travel along the second direction of arrow B indication, to oppositely move along the first direction of arrow A indication, get back to again the state shown in Figure 11, different is, now the first impeller 274 will promote will promote the first cam surface 221 with the first cam surface 221 along circumferential symmetrically arranged the 3rd cam surface 223, the second impellers 276 of axis X-X.

So repeatedly, the first impeller 274 will circulate successively and drive the first cam surface 221, the second cam surface 242, the 3rd cam surface 223, four-cam face 244, corresponding, the second impeller 276 the 3rd cam surface 223 that will circulate successively, four-cam face 244, the first cam surface 221, the second cam surface 242, so, thereby thereby cam 230 repeatedly moves and makes cam 230 along the 3rd rotation direction rotation of arrow R3 indication in figure, the frosted part 299 that is set in cam 230 outsides be polished to workpiece along the cycle of states shown in Figure 11-12-16-14-15-16-17-11.

In the present embodiment, no matter connecting rod 270 still moves towards second direction along axis X-X towards first direction, and the first 274 of promotions and the second impeller 276 disposed thereon all can move frosted working head 100 by driving cam face, and efficient work is stable.

Interchangeable, cam surface also can only arrange one, as a longer cam surface is set, when connecting rod 270 moves along first direction " past ", the first impeller 274 drives this cam surface to make cam rotation, and when connecting rod 270 " is answered " motion along second direction, cam is because inertia continues rotation, connecting rod 270 rapid movements also oppositely move along first direction " past " in time, can continue to promote above-mentioned cam surface and make cam and be set in the frosted part continuous rotation on cam.

For avoiding the first impeller 274 to occur " dead point " in the transfer process of driving cam face, when the first impeller 274 drives a cam surface to move to its end of travel, the first impeller 274 starting point of cam surface once under having run off in the rotation direction of cam 230.As shown in figure 13, when the first impeller 274 drives the first cam surface 221 to move to its end of travel, the first impeller 274 is along the starting point 2421 that has exceeded the second cam surface 242 in the rotation direction of the cam 230 of arrow R3 indication in figure; As shown in figure 17, when the first impeller 274 drives the second cam surface 242 to move to its end of travel, the first impeller 274 has exceeded the starting point 2231 of the 3rd cam surface 223 in the rotation direction of cam 230.Foregoing description is taking the first impeller 274 as example, but is equally applicable to the second impeller 276.

For making motion smoothly in cam path 231 that the first impeller 274 forms at cam surface, the width of the first impeller 274 is less than or equal to the width at narrow place of cam path 231.First impeller 274 of the present embodiment is roller, as shown in figure 12, the first impeller 274 drives in the first cam surface 221 motion processes, the cam path 231 width at narrow place is the distance of starting point 2421 to first cam surfaces 221 of the second cam surface 242, the diameter of roller is less than or equal to this width, and the first impeller 274 can be smoothly by herein.As shown in figure 16, the first impeller 274 drives in the second cam surface 242 motion processes, the cam path 231 width at narrow place is the distance of starting point 2231 to second cam surfaces 242 of the 3rd cam surface 223, and the diameter of roller is less than or equal to this width, and the first impeller 274 can be smoothly by herein.The first impeller 274 all can pass through smoothly at cam path 231 the narrowest places, also can pass through smoothly in other position of cam path 231, and the first motion of impeller 274 in cam path 231 is unblocked.More than describe taking the first impeller 274 as example, due to the second impeller 276 and the first impeller 274 onesize, the second impeller 276 also can straightwayly move in cam path.

The frosted working head 200 of this present embodiment also can be arranged on the work top 11 of the cutting machine 10 shown in Fig. 7, work top 11 is arranged with inverted sweep-saw, this sweep-saw comprises housing, be arranged on the motor in housing, the transmission mechanism that driven by described motor, reciprocating reciprocating lever under described transmission mechanism drives, described reciprocating lever one end is connected with transmission mechanism, the other end is provided with saw blade clamping apparatus, this saw blade clamping apparatus and working head, as connections such as saw blades, when by saw blade when saw blade clamping apparatus takes off, thereby the saw blade clamping apparatus of sweep-saw can be connected with the connecting rod of frosted working head 200 270 formation sanding tool, back and forth the reciprocating motion of the reciprocating lever of class instrument output can drive the frosted part 299 of frosted working head 200 around a default axis rotation, thereby workpiece is polished.The cutting machine 10 of the present embodiment is desk-top reciprocating cutting machine, and work top 11 can be considered the housing of cutting machine 10.

The frosted working head 200 of the present embodiment is not limited to for the cutting machine 10 shown in Fig. 7, and the reciprocal class instrument of any type is as sweep-saw, and reciprocating saw etc. all can drive the frosted working head 200 of the present embodiment.The frosted working head 200 of the present embodiment preferably with reciprocal removable being connected of class instrument, like this, a frosted working head 200 can be arranged on multiple reciprocal class instruments; And reciprocal class instrument is except driving the frosted working head 200 of the present embodiment, also can drive other working head, as saw blade etc., thus frosted working head 200 or back and forth class instrument all can use in occasion widely no matter.But the frosted working head 200 of the present embodiment also can be fixedly connected with reciprocal class instrument, thereby this reciprocal class instrument only configures power and the transmission mechanism of enough driving frosted working heads 200, also without other functional unit is set, therefore, this sanding tool is simple in structure, with low cost.

What deserves to be explained is, the connecting rod 270 of the present embodiment can, by reciprocal class tool drives, can improve grinding efficiency like this, alleviates workload simultaneously.Connecting rod 270 is during by reciprocal class tool drives, connecting rod 270 is consistent with the end shape of one end that the end shape of one end that back and forth saw blade clamping apparatus of class instrument is connected is preferably connected with saw blade clamping apparatus with the standard operation head (as saw blade) of reciprocal class instrument, can make like this frosted working head 200 well mate with the output of reciprocal class instrument.As shown in Figure 8, the shape of the end 2701 of the connecting rod 270 of the present embodiment is consistent away from the end shape of sawtooth portion with the saw blade of calibration curve saw, the end shape of the one end being namely connected with the saw blade clamping apparatus of sweep-saw is consistent, therefore, the frosted working head of the present embodiment can with good the mating of various sweep-saws.

In the time of the reciprocal class instrument without available, thereby connecting rod 270 also can manual actuation make frosted working head 200 polish to workpiece, makes like this frosted working head application of the present embodiment very extensive.

The frosted working head of above-described embodiment is by reciprocal class tool drives, and movement conversion mechanism is converted to the reciprocating motion of the connecting rod under reciprocal class tool drives the rotation of rotatable parts, thereby frosted part rotates workpiece is polished with rotatable parts.Except the cam switching mechanism that above-described embodiment is mentioned, outside pull bar switching mechanism, the present invention can also have various deformation, makes connecting rod form tooth bar as tooth portion is set on connecting rod, and frosted part is arranged on can be by the gear of rack drives.The movement conversion mechanism of other form, as rocker-slider mechanism, the movement conversion mechanisms such as slider-crank mechanism all can be converted to the reciprocating motion of connecting rod the rotation of frosted part, and this is no longer going to repeat them.

It should be noted that, the nouns of locality such as " top " mentioned above, " end " are all with the residing state definition of the parts shown in described drawing, and these nouns of locality are only to propose for convenience of description, Composition of contents are not limited.

Although instantiation has been described and has illustrated in the accompanying drawings this this example in description, but it will be understood by those skilled in the art that, not exceeding under the prerequisite of scope of the present disclosure that claim limits, can make various changes and be equal to replacement element of the present invention.In addition, except as otherwise noted, can as abovely specially consider the feature between each example, requirement and/or function combine and coordinate, those skilled in the art can be understood from present disclosure, can be by suitable to the feature of an embodiment, key element and/or function being attached in another embodiment.And, do not exceeding under the prerequisite of main scope of the present invention, can be according to the instruction of present disclosure, make the various remodeling that is suitable for concrete condition or material.Therefore, present disclosure is not limited to shown in accompanying drawing and the described instantiation of description, and these examples are just realized best mode of the present invention, and the scope of present disclosure should comprise any embodiment falling within the scope of explanation above and claims.

Claims

1. a frosted working head, comprise frosted part, it is characterized in that: described frosted working head also comprises the connecting rod of linear reciprocal movement, the movement conversion mechanism being connected with described connecting rod, described movement conversion mechanism is converted to described frosted part around a default axial-movement by the linear reciprocal movement of described connecting rod, described movement conversion mechanism comprises the impeller being driven by described connecting rod, the cam that is provided with the first cam surface and the second cam surface being driven by described impeller, when described connecting rod moves along first direction, described impeller is exerted pressure and is made described in described cam driven frosted part around described default axial-movement to described the first cam surface, when described connecting rod moves along second direction, described impeller is exerted pressure and is made described in described cam driven frosted part around described default axial-movement to described the second cam surface.

2. frosted working head as claimed in claim 1, it is characterized in that: when described impeller is exerted pressure to described the first cam surface, described frosted part moves along the first rotation direction, when described impeller is exerted pressure to described the second cam surface, described frosted part moves along the second rotation direction, described the second rotation direction and described the first direction of rotation.

3. frosted working head as claimed in claim 2, is characterized in that: described the first cam surface and described the second cam surface are oppositely arranged, and the cam path that described the first cam surface and described the second cam surface form circumferentially extends along the direction of described default axis.

4. frosted working head as claimed in claim 2, it is characterized in that: described the first cam surface and described the second cam surface are the spiral prominence wheel faces along described default Axis Extension, described the first cam surface is identical with the rotary orientation of described the second cam surface, and described the first cam surface and described the second cam surface small part that is projected in the plane perpendicular to described default axis overlaps.

5. the frosted working head as described in claim 3 or 4, is characterized in that: when described connecting rod moves along described first direction, the single direction stroke of described impeller is positioned at the extended height of described the first cam surface on described default axis direction; When described connecting rod moves along described second direction, the single direction stroke of described impeller is positioned at the extended height of described the second cam surface on described default axis direction.

6. frosted working head as claimed in claim 1, it is characterized in that: when described impeller is exerted pressure to described the first cam surface, described frosted part moves along the first rotation direction, when described impeller is exerted pressure to described the second cam surface, described frosted part moves along the second rotation direction, and described the second rotation direction is identical with described the first rotation direction.

7. frosted working head as claimed in claim 1, it is characterized in that: described cam comprises the first cam member and the second cam member that are oppositely arranged, described the first cam member and described the second cam member extend along the direction of described default axis, and described the first cam surface and described the second cam surface are separately positioned on distolateral relative with described the second cam member of described the first cam member.

8. frosted working head as claimed in claim 1, it is characterized in that: described impeller comprises symmetrically arranged the first impeller of relatively described default axis and the second impeller, on described cam, be provided with respectively and described the first cam surface and described the second cam surface circumferential symmetrically arranged the 3rd cam surface and the four-cam face with respect to described default axis, described in when described the first impeller drives described the first cam surface, the second impeller drives described the 3rd cam surface, described in when described the first impeller drives described the second cam surface, the second impeller drives described four-cam face.

9. frosted working head as claimed in claim 1, is characterized in that: described frosted working head also comprises the frosted part installation portion that described frosted part is installed, and described frosted part installation portion is arranged on described cam.

10. frosted working head as claimed in claim 9, it is characterized in that: between described frosted part installation portion and described frosted part, be provided with resilient sleeve, described frosted working head is respectively arranged with end cap and end seat at the two ends of described resilient sleeve, be also provided with the distance adjusting mechanism that regulates distance between described end cap and described end seat on described frosted working head.

11. frosted working heads as claimed in claim 1, is characterized in that: described impeller is rolling element, and the axis of described rolling element is vertical with described default axis.

12. frosted working heads as claimed in claim 1, it is characterized in that: described connecting rod one end is connected with described movement conversion mechanism, the end shape of the other end of described connecting rod is consistent with the end shape of one end that back and forth the standard operation head of class instrument is connected with reciprocal class instrument.

13. 1 kinds of sanding tools, described sanding tool comprise reciprocal class instrument and the claim 1 that is connected with described reciprocal class instrument to the arbitrary described frosted working head of claim 12, described reciprocal class instrument comprises the motor that output rotatablely moves, rotatablely moving of motor is converted to the reciprocating transmission mechanism of reciprocating lever, described reciprocating lever one end is connected with described transmission mechanism, the other end of described reciprocating lever is connected with saw blade clamping apparatus, and described connecting rod is connected with described saw blade clamping apparatus.

14. sanding tools as claimed in claim 13, is characterized in that: the end shape of one end that described connecting rod is connected with described saw blade clamping apparatus is consistent with the end shape of one end that the standard operation head of described reciprocal class instrument is connected with described saw blade clamping apparatus.

15. sanding tools as claimed in claim 13, is characterized in that: described frosted working head also comprises described frosted working head is fixed on to the bearing on the housing of described reciprocal class instrument.