CN207987035U - Glass-cutting break bar - Google Patents
Glass-cutting break bar Download PDFInfo
- Publication number
- CN207987035U CN207987035U CN201820361062.9U CN201820361062U CN207987035U CN 207987035 U CN207987035 U CN 207987035U CN 201820361062 U CN201820361062 U CN 201820361062U CN 207987035 U CN207987035 U CN 207987035U
- Authority
- CN
- China
- Prior art keywords
- break bar
- glass
- cutting
- straight hole
- face
- 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.)
- Expired - Fee Related
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- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The utility model discloses glass-cutting break bars comprising break bar, the break bar have intermediate throughholes, and the break bar is in disk form, and the circumferential side wall of the break bar includes symmetrically arranged upper conical face and inferior pyramidal face；Wherein, the intermediate throughholes include two bellmouths for being set to the straight hole of middle position and the straight hole both ends being respectively set and expand outwardly;Circumferential blade is formed in the circumferential edge of the break bar by the symmetrically arranged upper conical face and the inferior pyramidal face so that the glass-cutting break bar has good cutting performance, can be suitably used for the glass that cutting thickness is thin, hardness is big；Meanwhile the intermediate throughholes include straight hole and the bellmouth at both ends, consequently facilitating the installation and removal of glass-cutting break bar in actual use.
Description
Technical field
The utility model is related to break bar technical fields, specifically, being related to a kind of glass-cutting break bar.
Background technology
Break bar is the ultraprecise diamond tool for cutting brittle material.
In the prior art, with the fast development of scientific and technological level, many fields require that the thickness of glass is thin, hardness is big,
And the cut quality of glass is required also higher and higher.
Therefore, a kind of glass-cutting break bar that cut quality is high is now provided.
Utility model content
For this purpose, the utility model provides a kind of glass-cutting break bar that cut quality is high.
In order to solve the above technical problems, the glass-cutting break bar of the utility model comprising break bar, during the break bar has
Between through-hole, the break bar is in disk form, and the circumferential side wall of the break bar includes symmetrically arranged upper conical face and inferior pyramidal face；Its
In, the intermediate throughholes include two for being set to the straight hole of middle position and the straight hole both ends being respectively set and expand outwardly
A bellmouth, the break bar is using break bar, hardness >=94 HR of the break bar made of ultra-fine grain tungsten carbide.
The diameter d of the straight hole meets following relationship：1.5mm≤d≤2mm.
The lower deviation of the diameter d of the straight hole is -0mm, the upper deviation is+0.10mm.
The diameter D of the break bar meets following relationship：4mm≤D≤8mm.
The lower deviation of the diameter D of the break bar is -0.20mm, the upper deviation is+0.20mm.
The thickness H of the break bar meets following relationship：1mm≤H≤2mm.
The lower deviation of the thickness H of the break bar is -0.10mm, the upper deviation is+0mm.
Angle а between the upper conical face and the inferior pyramidal face meets following relationship：90 ° of 150 ° of ＜ а ＜.
The above-mentioned technical proposal of the utility model has the following advantages compared with prior art：
In the present invention, by the symmetrically arranged upper conical face and the inferior pyramidal face the break bar week
Circumferential blade is formed on edge so that the glass-cutting break bar has good cutting performance, can be suitably used for cutting thickness
Glass thin, hardness is big；Meanwhile the intermediate throughholes include straight hole and the bellmouth at both ends, consequently facilitating the glass cutter
The installation and removal of wheel in actual use.
Description of the drawings
In order to make the content of the utility model be more likely to be clearly understood, below according to the specific implementation of the utility model
Example and in conjunction with attached drawing, the utility model is described in further detail, wherein
Fig. 1 is glass-cutting break bar schematic diagram described in the utility model；
Fig. 2 is another schematic diagram of glass-cutting break bar described in the utility model.
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
As illustrated in fig. 1 and 2, glass-cutting break bar provided in this embodiment comprising break bar, the break bar have intermediate logical
Hole, the break bar is in disk form, and the circumferential side wall of the break bar includes symmetrically arranged upper conical face and inferior pyramidal face；Wherein,
The intermediate throughholes include two for being set to the straight hole of middle position and the straight hole both ends being respectively set and expand outwardly
Bellmouth, the break bar is using break bar, hardness >=94 HR of the break bar made of ultra-fine grain tungsten carbide.
In the present embodiment, by the symmetrically arranged upper conical face and the inferior pyramidal face the break bar circumferential direction
Circumferential blade is formed on edge so that the glass-cutting break bar has good cutting performance, can be suitably used for cutting thickness it is thin,
The big glass of hardness；Meanwhile the intermediate throughholes include straight hole and the bellmouth at both ends, consequently facilitating the glass-cutting break bar is real
Installation and removal when border uses.
In the present embodiment, when the diameter d of the straight hole meets following relationship：It is preferably described straight when 1.5mm≤d≤2mm
The lower deviation of the diameter d in hole is -0mm, the upper deviation is+0.10mm；To ensure the machining accuracy of the glass-cutting break bar itself.
Meanwhile when the diameter D of the break bar meets following relationship：When 4mm≤D≤8mm, the diameter D of the preferably described break bar
Lower deviation be -0.20mm, the upper deviation is+0.20mm；When the thickness H of the break bar meets following relationship：1mm≤H≤2mm
When, the lower deviation of the thickness H of the preferably described break bar is -0.10mm, the upper deviation is+0mm.
Further, the angle а between the preferably described upper conical face and the inferior pyramidal face meets following relationship：90 ° of ＜ а ＜
150 °, to ensure the keen edge degree of the glass-cutting break bar.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. glass-cutting break bar comprising break bar, it is characterised in that：It is in disk that the break bar, which has intermediate throughholes, the break bar,
The circumferential side wall of shape, the break bar includes symmetrically arranged upper conical face and inferior pyramidal face；Wherein, the intermediate throughholes include setting
Straight hole in middle position and the straight hole both ends are respectively set and expand outwardly two bellmouths, the break bar use
Break bar made of ultra-fine grain tungsten carbide, hardness >=94 HR of the break bar.
2. glass-cutting break bar according to claim 1, it is characterised in that：The diameter d of the straight hole meets following relationship：
1.5mm≤d≤2mm。
3. glass-cutting break bar according to claim 2, it is characterised in that：The lower deviation of the diameter d of the straight hole be-
0mm, the upper deviation are+0.10mm.
4. glass-cutting break bar according to claim 1, it is characterised in that：The diameter D of the break bar meets following relationship：
4mm≤D≤8mm。
5. glass-cutting break bar according to claim 4, it is characterised in that：The lower deviation of the diameter D of the break bar be-
0.20mm, the upper deviation are+0.20mm.
6. glass-cutting break bar according to claim 1, it is characterised in that：The thickness H of the break bar meets following relationship：
1mm≤H≤2mm。
7. glass-cutting break bar according to claim 6, it is characterised in that：The lower deviation of the thickness H of the break bar be-
0.10mm, the upper deviation are+0mm.
8. glass-cutting break bar according to claim 1, it is characterised in that：The upper conical face and the inferior pyramidal face it
Between angle а meet following relationship：90 ° of 150 ° of ＜ а ＜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820361062.9U CN207987035U (en) | 2018-03-16 | 2018-03-16 | Glass-cutting break bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820361062.9U CN207987035U (en) | 2018-03-16 | 2018-03-16 | Glass-cutting break bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207987035U true CN207987035U (en) | 2018-10-19 |
Family
ID=63828180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820361062.9U Expired - Fee Related CN207987035U (en) | 2018-03-16 | 2018-03-16 | Glass-cutting break bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207987035U (en) |
-
2018
- 2018-03-16 CN CN201820361062.9U patent/CN207987035U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181019 |