CN1618571A - Backing plate for grinding tool - Google Patents
Backing plate for grinding tool Download PDFInfo
- Publication number
- CN1618571A CN1618571A CN 200410095251 CN200410095251A CN1618571A CN 1618571 A CN1618571 A CN 1618571A CN 200410095251 CN200410095251 CN 200410095251 CN 200410095251 A CN200410095251 A CN 200410095251A CN 1618571 A CN1618571 A CN 1618571A
- Authority
- CN
- China
- Prior art keywords
- abrasive material
- material carrier
- supporter
- grinding
- grinding dish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000003082 abrasive agent Substances 0.000 claims description 54
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000000284 resting effect Effects 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 7
- 229920003023 plastic Polymers 0.000 abstract description 7
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 238000004898 kneading Methods 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
- B24D13/147—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising assemblies of felted or spongy material; comprising pads surrounded by a flexible material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a grinding plate of the portable grinding tool having a drive device, especially relating to a grinding plate of the offset type or vibrating type grinding tool, including: a supporting body (11) connected with the drive device, the material with elastic deformation property supported on the supporting body (11), the grinding medium (12) that had better be made of plastic, and the grinding medium has a plat supporting surface (121) for the grinding plate behind the supporting body (11). In order to obtain the good kneading property, the grinding plate can perform a good grinding even on a curved surface of the workpiece, and the supporting body (11) has a structure that only a ring shaped region (123) of the grinding medium (12) on the back (122) of the supporting surface (121) for the grinding plate behind the supporting body is supported.
Description
Technical field
The present invention relates to have the grinding dish of a hand-guided grinding of drive transmission, especially the grinding dish of eccentric grinder or oscillating sander, have a supporter that can be connected with described drive transmission and one and be supported on the described supporter abrasive material carrier that the material by elastically deformable makes, this abrasive material carrier has the back side and the flat bearing-surface that is used for an abrasive sheet of carrying described supporter towards described supporter.
Background technology
The grinding dish that a kind of known hand-guided grinding that is made of eccentric grinder (US 5 018 314) has a circle, it is installed on the eccentric output shaft of an electric motor driven centering type transmission device by a centre bearing.The supporter of grinding dish has a flat board and that vertically stretched out by this plate and the bearing sleeve plate one, places centre bearing in this sleeve pipe.The circular abrasive material carrier level land that is made of plastics rests on the plate of supporter and is overlapping the plate of supporter with the edge of its corresponding formation clampingly.
Another known grinding dish (EP 0 557 733 B1) that is used for hand-guided grinding has a gripper shoe of being done by plastics, and foaming conduct on gripper shoe is used for pad and steel disk as reinforcing member that is located at their centres of abrasive material carrier.The downside of pad is configured for a flat bearing-surface of abrasive sheet and is provided with bonding jumper, can adhere to the velvet back side of abrasive sheet thereon.
Summary of the invention
The present invention proposes the grinding dish of a hand-guided grinding with drive transmission, especially the grinding dish of eccentric grinder or oscillating sander, have a supporter that can be connected and one and be supported on the described supporter abrasive material carrier that the material by elastically deformable makes with described drive transmission, this abrasive material carrier has the back side and the flat bearing-surface that is used for an abrasive sheet of carrying described supporter towards described supporter, wherein: the structure of described supporter makes that described abrasive material carrier is only being supported on its back side in an annulus.
The grinding dish that is used for hand-guided grinding according to the present invention has its advantage, i.e. reverse support by the abrasive material carrier is not arranged on the whole bearing-surface but only is located on the annulus that is positioned at bearing-surface, can realize the flexibility that the grinding dish is very big.When grinding the annulus of abrasive material carrier by its on supporter support and relatively hard and with this annulus inwardly and the zone of the abrasive material carrier that outwards is connected owing to the support that does not have supporter the softer and profile of adaptive machined surface well thus.By the abrasive material carrier not the Hookean region of same-action can make " harder " regional dip of grinding coiling abrasive material carrier, the grinding dish is abutted against on the workpiece well, this will result in the formula milling drum of holding and undisturbedly move.Generally speaking, can finely adapt to protruding and recessed surface of the work profile and obtain good grinding result according to grinding dish of the present invention.And grinding dish according to the present invention also is favourable under the situation of the flat face of processing.By in " harder " annulus of abrasive material carrier, being provided with " softer " zone, not having the pressure that increases at the center of grinding dish and be delivered on the workpiece and can avoid thus bonding jumper between abrasive sheet, abrasive sheet and the bearing-surface or workpiece the overheated of enamelled coating (Farbanstrich) that oil.
Advantageously, the distance of described annulus inward flange from the center of described bearing-surface is substantially equal to described annulus outward flange from the outer peripheral distance of described bearing-surface.
Advantageously, in described bearing-surface, has a centre bore that penetrates described abrasive material carrier.
Advantageously, described supporter has an annular lip of protruding on axially on the end face at the described back side of described abrasive material carrier at it, and this flange rests on the described abrasive material carrier in the described annulus of described abrasive material carrier with its distolateral supporting surface.
Advantageously, described abrasive material carrier has a circular support face and described supporter is a truncated cone body, is provided with the central recess of a circle in the basal plane on the described back side of the described abrasive material carrier of resting on of described supporter.
Advantageously, described abrasive material carrier has a quadrangle supporting surface and described supporter is a truncated pyramid body, is provided with a tetragonal central recess in the basal plane on the described back side of the described abrasive material carrier of resting on of described supporter.
Advantageously, described supporter is a flat plate body, is provided with a central recess in the basal plane on the described back side of the described abrasive material carrier of resting on of described supporter.
Advantageously, described abrasive material carrier by die casting (anspritzen) or the foaming on described supporter.
Description of drawings
Below will describe the present invention in detail by the embodiment shown in the accompanying drawing.Accompanying drawing is:
Fig. 1: be used for a sectional view of the grinding dish of eccentric grinder,
Fig. 2: according to sectional view Fig. 1, that be pressed in the grinding dish on the workpiece with nonreentrant surface.
The specific embodiment
The grinding dish of representing with the longitudinal section among Fig. 1 that is used for eccentric grinder have a supporter 11 and one be fixed on the supporter 11, by the material of elastically deformable, preferably by the abrasive material carrier 12 of plastics work, this milling drum is as the embodiment with hand-guided grinding of electric motor driven drive transmission.The abrasive material carrier 12 is fixed on the supporter 11 by die casting or foaming.Be configured on the drive transmission that is used to be placed in eccentric grinder by the supporter 11 of plastics or metal manufacturing and have a central bore 13 for this reason, be used to pass a hold-down screw.Example for the eccentric grinder with the drive transmission that is made of the centering type transmission device is described among the US 50 18 314.As the described grinding dish in there, supporter 11 also can have a center port that is used for the receiving center bearing here, and this centre bearing is placed on the output shaft of centering type transmission device.
This grinding dish is circular in the embodiment in figure 1.Supporter 11 has the shape of a truncated cone body, and the abrasive material carrier 12 is placed on the bigger basal plane of its diameter, and is overlapping the outer surface 112 of supporter 11 simultaneously.
The abrasive material carrier 12 has a back side 122 and reaches and its flat bearing-surface 121 opposing, that be used for a unshowned abrasive sheet, and for example connection sticks on the bearing-surface 121 the grinding dish by overlap joint.This overlap joint connects available known manner to be realized by bonding layer on the bearing-surface 121 and the velvet layer on the abrasive sheet back side.In bearing-surface 121, be provided with a centre bore 14 that passes the abrasive material carrier 12 until supporter 11.
In the basal plane 111 of supporter 11, be provided with a central recess 15, constitute an annular lip 16 of stretching out on axially on the end face at the back side 122 of abrasive material carrier 12 at supporter 11 thus.Should rest on the back side 122 of abrasive material carrier 12 with supporter 11 integrant its end face supporting surfaces 162 of flange 16 usefulness, so that only supported body 11 supports in the annulus 123 in its bearing-surface 121 of abrasive material carrier 12.This annulus 123 is provided with in this wise in the embodiment in figure 1, and promptly the annulus inward flange is substantially equal to the radial distance of annulus outward flange to abrasive material carrier 12 cylindrical contour to the radial distance of the axis of grinding dish.The width of flange 16 and thus the width of annulus 123-abrasive material carrier 12 be supported in this width-will select with its back side 122 that deviates from bearing-surface 121 according to individual other use occasion.
Only in annulus 123, be supported on the supporter 11 with its back side 122 by the abrasive material carrier 12, just in the abrasive material carrier 12 when carrying out grinding some zones or some parts form different elasticity.Annulus 123 is relatively hard, so that can apply big relatively thrust on workpiece by it when grinding.These inwardly and the zones " softer " that outwards connect and can adaptive well surface of the work on some uneven profiles.
The distortion of expression abrasive material carrier 12 when on the nonreentrant surface 17 that is pressed on a workpiece among Fig. 2.Can be clear that, be positioned at the zone of the abrasive material carrier 12 beyond the annulus 123 and be positioned at annulus 123 with the zone of abrasive material carrier 12 flexibly be out of shape and abut against on the cam contour of work surface 17.Therefore can guarantee uniform stock removal and guarantee high-quality grinding result thus.
The present invention is not limited on the grinding dish of eccentric grinder, and it can be applicable to the grinding dish of oscillating sander equally well.This grinding dish also can be made quadrangularly, rectangle or square.In the case, supporter 11 for example is made to the truncated pyramid body, has a tetragonal groove on its basal plane, form thus one be used to support rectangle or square abrasive material carrier 12, shaped as frame around flange 16.Supporter 11 also can make plastic plate.In the case, what have the distolateral supporting surface that is used for the abrasive material carrier 12 can be by at plastic plate around flange 16, exactly at it in the plate face of abrasive material carrier 12, a central recess is set is made into.
Claims (8)
1. the grinding dish that has a hand-guided grinding of drive transmission, especially the grinding dish of eccentric grinder or oscillating sander, having a supporter (11) that can be connected with described drive transmission and one is supported on described supporter (11) and goes up the abrasive material carrier (12) that the material by elastically deformable makes, this abrasive material carrier has the back side towards described supporter (11) (122) and a flat bearing-surface (121) that is used for an abrasive sheet of carrying described supporter (11), it is characterized in that: the structure of described supporter (11) makes that described abrasive material carrier (12) is only being supported on its back side (122) in an annulus (123).
2. according to the grinding dish of claim 1, it is characterized in that: the distance of described annulus (123) inward flange from the center of described bearing-surface (121) is substantially equal to described annulus (123) outward flange from the outer peripheral distance of described bearing-surface (121).
3. according to the grinding dish of claim 1 or 2, it is characterized in that: in described bearing-surface (121), have a centre bore (14) that penetrates described abrasive material carrier (12).
4. according to one grinding dish in the claim 1 to 3, it is characterized in that: described supporter (11) has an annular lip (16) that axially goes up protrusion at it on the end face at the described back side (122) of described abrasive material carrier (12), this flange rests on the described abrasive material carrier in the described annulus (123) of described abrasive material carrier (12) with its distolateral supporting surface (162).
5. according to one grinding dish in the claim 1 to 4, it is characterized in that: described abrasive material carrier (12) has a circular support face (121) and described supporter (11) is a truncated cone body, is provided with the central recess (15) of a circle in the basal plane (111) on the described back side (122) of the described abrasive material carrier of resting on of described supporter (12).
6. according to one grinding dish in the claim 1 to 4, it is characterized in that: described abrasive material carrier (12) has a quadrangle supporting surface (121) and described supporter (11) is a truncated pyramid body, is provided with a tetragonal central recess (15) in the basal plane (111) on the described back side (122) of the described abrasive material carrier of resting on of described supporter (12).
7. according to one grinding dish in the claim 1 to 4, it is characterized in that: described supporter (11) is a flat plate body, is provided with a central recess (15) in the basal plane on the described back side (122) of the described abrasive material carrier of resting on of described supporter (12).
8. according to one grinding dish in the claim 1 to 7, it is characterized in that: described abrasive material carrier (12) by die casting or foaming on described supporter (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003154653 DE10354653A1 (en) | 2003-11-22 | 2003-11-22 | Sanding pad for a hand grinder |
| DE10354653.7 | 2003-11-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1618571A true CN1618571A (en) | 2005-05-25 |
| CN1618571B CN1618571B (en) | 2010-05-12 |
Family
ID=33547242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410095251 Expired - Fee Related CN1618571B (en) | 2003-11-22 | 2004-11-22 | Backing plate for grinding tool |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1618571B (en) |
| DE (1) | DE10354653A1 (en) |
| GB (1) | GB2408226B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475875A (en) * | 2015-08-31 | 2017-03-08 | 罗伯特·博世有限公司 | For the grinding disc of handheld type electric tool, and electric tool system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013213272A1 (en) * | 2013-07-05 | 2015-01-08 | Flex-Elektrowerkzeuge Gmbh | Tool holder and hand-held grinding machine |
| DE102015113190A1 (en) * | 2015-08-11 | 2017-02-16 | Festool Gmbh | Sanding pad and thus equipped grinding machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE381208A (en) * | ||||
| GB753938A (en) * | 1954-06-18 | 1956-08-01 | Berne Tocci Guilbert | Improvements in or relating to polishing and abrading apparatus |
| FR1280407A (en) * | 1961-02-16 | 1961-12-29 | Truvox Ltd | element or support piece for abrasive sheet or other |
| JPS54139187A (en) * | 1978-04-21 | 1979-10-29 | Hitachi Ltd | Spacer for grinding attachment |
| FR2633859A1 (en) * | 1988-07-08 | 1990-01-12 | Premines Sa | Support for an abrasive disc |
| US5018314A (en) * | 1989-06-08 | 1991-05-28 | Makita Electric Works, Ltd. | Sander |
| CN2192434Y (en) * | 1994-04-30 | 1995-03-22 | 黄晋龙 | Disk sand polishing machine plastic grinding board |
-
2003
- 2003-11-22 DE DE2003154653 patent/DE10354653A1/en not_active Ceased
-
2004
- 2004-11-19 GB GB0425564A patent/GB2408226B/en not_active Expired - Fee Related
- 2004-11-22 CN CN 200410095251 patent/CN1618571B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475875A (en) * | 2015-08-31 | 2017-03-08 | 罗伯特·博世有限公司 | For the grinding disc of handheld type electric tool, and electric tool system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10354653A1 (en) | 2005-06-16 |
| GB2408226A (en) | 2005-05-25 |
| GB0425564D0 (en) | 2004-12-22 |
| CN1618571B (en) | 2010-05-12 |
| GB2408226B (en) | 2005-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20161122 |