CN204686682U - A kind of new-type cutter - Google Patents
A kind of new-type cutter Download PDFInfo
- Publication number
- CN204686682U CN204686682U CN201520347076.1U CN201520347076U CN204686682U CN 204686682 U CN204686682 U CN 204686682U CN 201520347076 U CN201520347076 U CN 201520347076U CN 204686682 U CN204686682 U CN 204686682U
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- China
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- new
- cutter
- groove
- bevelling
- type cutter
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Abstract
A kind of new-type cutter, comprising: shank section and cutter head portion, described cutter head portion is provided with reamer, bevelling groove and punching portion, wherein, described reamer surface is coated with 380-500 object coarseness layer of sand, and described bevelling groove and surface, punching portion are coated with 600-1200 object fine granularity layer of sand.New-type cutter of the present utility model, it changes the structure of conventional tool and adopts different grain size to plate sand, and realize listening hole, the processing of key hole to touch-screen, it not easily breaks, and the life-span is longer, substantially increases working (machining) efficiency.
Description
Technical field
The utility model relates to glass screen machining tool technical field, particularly relates to a kind of new-type cutter for processing touch-screen.
Background technology
Touch-screen is widely used among various electronic equipment, and the processing technology of touch screen glass is undertaken by following three kinds of process sequences: first, punches and listens bore → expansion to listen bore → refine to listen bore; Then, by presetting circle punching → expansion key hole hole → refine key hole; Finally, profile four wedge angles → corase grind appearance profile → refine profile is roughly ground.
We know that combined diamond cutter has the feature of boring and the bevelling processing simultaneously realizing touch screen glass, have both decreased the alignment error that different cutter manufacture difference is brought, and have saved processing cost, improve machining accuracy; Additionally reduce the work step of frequent tool changing, decrease labour intensity, improve numerous advantages such as working (machining) efficiency, and enjoy favor.
But more than 90% combined diamond cutter (tool bit diameter≤1.4mm) is all when carrying out reaming operation in actual processing, at refine groove place's breaking thus cutter life stop, (most of external diameter is slightly opened with refine position all still intact to have scrapped whole gang tool, but be forced to scrap whole cutter because of cutter head breaking, cause the waste of resource).
Touch screen glass is listened in hole machined, bistrique and the power suffered by any contact point of workpiece can be analyzed to along cutting linear velocity direction tangential force be directed to the radial load of center cutter axle.Stressed synthesis is everywhere obtained the pressure Fr that cutter is bent and the moment Mt that cutter is reversed.
Tool sharpening in reaming procedure force analysis as negative Fig. 1: because bistrique rear end (a-quadrant) is large compared with bistrique front end (B region) sectional area, front end belongs to the weak link of bistrique matrix strength, in grinding process, bistrique stressing conditions is Flexural cantilever model, and a-quadrant is the stiff end of cantilever beam.Wherein shearing suffered by cutter is Fr, and moment of torsion suffered by cutter is Mt, and moment of flexure suffered by cutter is Mr=Fr*X (maximal bending moment, at A place, is Fr*L).
Known by analyzing above, what cutter was subject in Grinding Process is alternate stress, stress is greater than its fracture strength suffered by the cutter, or suffered stress is less than when its fracture strength but reaches fatigue limit and all there will be cutter breakage phenomena, thus cutter life stops.Based on above-mentioned theory analysis, it is short to solve the existing touch-screen process tool life-span, the technical problem easily broken.
Utility model content
The purpose of this utility model is to provide a kind of new-type cutter, and the cutter life which solved at present for touch screen processing is short, the technical problem easily broken.
For achieving the above object, the technical scheme that the utility model proposes is:
A kind of new-type cutter of the present utility model, comprise: shank section and cutter head portion, described cutter head portion is provided with reamer, bevelling groove and punching portion, wherein, described reamer surface is coated with 380-500 object coarseness layer of sand, and described bevelling groove and surface, punching portion are coated with 600-1200 object fine granularity layer of sand.
Wherein, described shank section is also provided with the profile bevelling groove for processing touch screen edge, described profile bevelling rooved face is provided with plating layer of sand.
Wherein, described profile bevelling groove comprises the thick bevelling groove of profile and profile essence bevelling groove, is provided with boundary groove therebetween.
Wherein, boundary groove is provided with between described reamer and bevelling groove.
Wherein, described shank section diameter range is 3-10mm.
Wherein, described shank section and cutter head portion total length scope are 30-80mm.
Wherein, the angular range of described bevelling groove is 40-120 °.
Wherein, described cutter head diameter is little compared with shank section diameter.
New-type cutter of the present utility model, it changes the structure of conventional tool and adopts different grain size to plate sand, and realize listening hole, the processing of key hole to touch-screen, it not easily breaks, and the life-span is longer, substantially increases working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model conventional tool suffered internal force analysis figure in use;
Fig. 2 is the cutter profile of the utility model cutter first embodiment;
Fig. 3 is the cutter profile of the utility model cutter second embodiment.
Detailed description of the invention
Below with reference to accompanying drawing, elaboration is further given to the utility model.
Refer to accompanying drawing 2, it is the cutter profile of the first embodiment, this new-type cutter, comprise: shank section 11 and cutter head portion 12, cutter head portion 12 is provided with reamer 121, bevelling groove 122 and punching portion 123, wherein, reamer 121 surface is coated with 380-500 object coarseness layer of sand, and bevelling groove 122 and surface, punching portion 123 are coated with 600-1200 object fine granularity layer of sand.
Further, this new-type cutter is bar shape, namely forms the shank section 11 of this new-type cutter and cutter head portion 12 all with same central shaft Central Symmetry.Wherein, the diameter in cutter head portion 12 is less than shank section 11 diameter.More specifically, the diameter of shank section 11 is 3mm to 10mm.The summation length in shank section 11 and cutter head portion 12 is 30mm to 80mm.Shank section 11 is for being installed on rotating mechanism by this new-type cutter, punches when rotating in this cutter head portion 12, perforate and polishing refine.
Preferably, the diameter of shank section 11 selects 6mm, 8mm, 10mm.
Please accompanying drawings 2 again, further, is provided with groove 1210 of demarcating between described reamer 121 and bevelling groove 122.
Further, bevelling groove 122 is an isosceles trapezoidal groove, and the angle a scope of two waist limit extended lines of bevelling groove is 40-120 °.Preferably, angle a adopts 60 degree and 90 degree.The bottom portion of groove width of bevelling groove 122 is determined according to touch screen plate thickness to be processed.The angle of angle a is determined according to touch screen panel edges polishing oblique angle.
Please participate in accompanying drawing 3, it is the cutter profile of the second embodiment:
This new-type cutter, comprising: shank section 21 and cutter head portion 22, and cutter head portion 22 is provided with reamer 221, bevelling groove 222 and punching portion 223, wherein, reamer 221 surface is coated with 380-500 object coarseness layer of sand, and bevelling groove 222 and surface, punching portion 223 are coated with 600-1200 object fine granularity layer of sand.
Further, this new-type cutter is bar shape, namely forms the shank section 21 of this new-type cutter and cutter head portion 22 all with same central shaft Central Symmetry.Wherein, the diameter in cutter head portion 22 is less than shank section 21 diameter.More specifically, the diameter of shank section 21 is 3mm to 10mm.The summation length in shank section 21 and cutter head portion 22 is 30mm to 80mm.Shank section 21 is for being installed on rotating mechanism by this new-type cutter, punches when rotating in this cutter head portion 22, perforate and polishing refine.
Wherein, shank section 21 is also provided with the profile bevelling groove 211 for processing touch screen edge, profile bevelling groove 211 surface is provided with plating layer of sand.More specifically, profile bevelling groove 211 comprises the thick bevelling groove of profile and profile essence bevelling groove, is provided with boundary groove therebetween.The thick bevelling rooved face of profile is coated with 380-500 object coarseness layer of sand, and profile essence bevelling rooved face is coated with 600-1200 object fine granularity layer of sand.
Preferably, the diameter of shank section 11 selects 6mm, 8mm, 10mm.
Please accompanying drawings 2 again, further, is provided with groove 2210 of demarcating between described reamer 221 and bevelling groove 222.
Further, bevelling groove 222 is an isosceles trapezoidal groove, and the angle a scope of two waist limit extended lines of bevelling groove is 40-120 °.Preferably, angle a adopts 60 degree and 90 degree.The bottom portion of groove width of bevelling groove 122 is determined according to touch screen plate thickness to be processed.The angle of angle a is determined according to touch screen panel edges polishing oblique angle.
Foregoing; be only preferred embodiment of the present utility model; not for limiting embodiment of the present utility model; those of ordinary skill in the art are according to central scope of the present utility model and spirit; can carry out corresponding flexible or amendment very easily, therefore protection domain of the present utility model should be as the criterion with the protection domain required by claims.
Claims (8)
1. a new-type cutter, comprise: shank section and cutter head portion, it is characterized in that, described cutter head portion is provided with reamer, bevelling groove and punching portion, wherein, described reamer surface is coated with 380-500 object coarseness layer of sand, and described bevelling groove and surface, punching portion are coated with 600-1200 object fine granularity layer of sand.
2. new-type cutter as claimed in claim 1, it is characterized in that, described shank section is also provided with the profile bevelling groove for processing touch screen edge, described profile bevelling rooved face is provided with plating layer of sand.
3. new-type cutter as claimed in claim 2, is characterized in that, described profile bevelling groove comprises the thick bevelling groove of profile and profile essence bevelling groove, is provided with boundary groove therebetween.
4. new-type cutter as claimed in claim 1, is characterized in that, be provided with boundary groove between described reamer and bevelling groove.
5. new-type cutter as claimed in claim 1, it is characterized in that, described shank section diameter range is 3-10mm.
6. new-type cutter as claimed in claim 1, it is characterized in that, described shank section and cutter head portion total length scope are 30-80mm.
7. new-type cutter as claimed in claim 1, it is characterized in that, the angular range of described bevelling groove is 40-120 °.
8. new-type cutter as claimed in claim 1, it is characterized in that, described cutter head diameter is little compared with shank section diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347076.1U CN204686682U (en) | 2015-05-26 | 2015-05-26 | A kind of new-type cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347076.1U CN204686682U (en) | 2015-05-26 | 2015-05-26 | A kind of new-type cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204686682U true CN204686682U (en) | 2015-10-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520347076.1U Expired - Fee Related CN204686682U (en) | 2015-05-26 | 2015-05-26 | A kind of new-type cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204686682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842285A (en) * | 2015-05-26 | 2015-08-19 | 深圳市常兴技术股份有限公司 | Novel cutter |
-
2015
- 2015-05-26 CN CN201520347076.1U patent/CN204686682U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842285A (en) * | 2015-05-26 | 2015-08-19 | 深圳市常兴技术股份有限公司 | Novel cutter |
| CN104842285B (en) * | 2015-05-26 | 2017-11-17 | 深圳市常兴技术股份有限公司 | A kind of cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20151007 Termination date: 20170526 |