CN208230922U - Band three cutting drills of support - Google Patents
Band three cutting drills of support Download PDFInfo
- Publication number
- CN208230922U CN208230922U CN201820535044.8U CN201820535044U CN208230922U CN 208230922 U CN208230922 U CN 208230922U CN 201820535044 U CN201820535044 U CN 201820535044U CN 208230922 U CN208230922 U CN 208230922U
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- CN
- China
- Prior art keywords
- flank
- cutter
- face
- cutting
- end tooth
- 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
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model belongs to cutting-tool engineering field, it is related to a kind of three cutting drills of band support, including knife handle, the end face centre of gyration of knife handle working end is uniformly arranged three cutting edges, the two sides of every cutting edge are respectively cutter rake face, cutter flank, end tooth major first flank is arranged in region between adjacent two cutting edges, the second flank of end tooth, the second flank of end tooth is sector structure, the arc surface support setting step rear face of the second flank of end tooth, outer surface one end projection land of step rear face, other end projection support bar, the outer surface of the step rear face is additionally provided with support strip cutter groove.The utility model product improves the cylindricity of processing part；Improve the surface roughness of part；Improve production efficiency.
Description
Technical field
The utility model belongs to cutting-tool engineering field, is related to a kind of three cutting drills of band support.
Background technique
Three cutting drills currently on the market are without support bar, it can be used for general processing, but are encountered longer disconnected
Continuous processing, just will appear that processing quality is unstable, is easy to appear the phenomenon of hole bias, brings very big puzzlement to processing.In order to
It solves the problems, such as this, is generally machined with the part in interrupted hole using boring cutter in the market, but the efficiency of boring cutter is very low, can not meet day
The production capacity demand that benefit increases.
Summary of the invention
In view of the above-mentioned problems, providing a kind of band support three cutting drills, which is effectively adapted to profound disconnected the utility model
The part of continuous processing realizes the promotion of processing efficiency under the premise of guaranteeing processing quality.
According to the technical solution of the utility model includes: a kind of band supports three cutting drills, including knife handle, the end face of knife handle working end is returned
Turn center and be uniformly arranged three cutting edges, it is characterised in that: the two sides of every cutting edge are respectively knife after cutter rake face, cutter
End tooth major first flank, the second flank of end tooth is arranged in face, the region between adjacent two cutting edges, and the second flank of end tooth is
Sector structure, the arc surface support setting step rear face of the second flank of end tooth, outer surface one end projection of step rear face
Land, other end projection support bar, the outer surface of the step rear face is additionally provided with support strip cutter groove.
Both the end tooth major first flank, second flank of end tooth are neighbouring as a further improvement of the utility model,
End face stick together, there is gap, knife after end tooth second between the outer end face and cutter rake face of end tooth major first flank
The other end in face is close to the edge of cutter flank.
Both the cutter rake face, cutter flank are obliquely installed as a further improvement of the utility model,.
The surface of the land, support bar is in arc-shaped as a further improvement of the utility model,.
The utility model has the technical effect that the utility model product improves the cylindricity of processing part；It improves
The surface roughness of part；Improve production efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the end view of the utility model.
Specific embodiment
Specific embodiment of the present utility model is further described with reference to the accompanying drawing.
Fig. 1, in 2, including before knife handle 1, step rear face 2, the second flank of end tooth 3, end tooth major first flank 4, cutter
Knife face 5, support bar cutter groove 6, land 7, support bar 8, cutting edge 9, cutter flank 10 etc..
As shown in Figure 1, 2, the utility model is a kind of three cutting drills of band support, including knife handle 1, the end face of 1 working end of knife handle
The centre of gyration is uniformly arranged three cutting edges 9, and the two sides of every cutting edge 9 are respectively cutter rake face 5, cutter flank 10,
End tooth major first flank 4, the second flank of end tooth 3, the second flank of end tooth 3 is arranged in region between adjacent two cutting edges 9
For sector structure, the arc surface support setting step rear face 2 of the second flank of end tooth 3, outer surface one end of step rear face 2
The outer surface of projection land 7, other end projection support bar 8, the step rear face 2 is additionally provided with support strip cutter groove 6.
The neighbouring end face of both end tooth major first flank 4, the second flanks of end tooth 3 sticks together, knife after end tooth first
There is gap, the other end of the second flank of end tooth 3 is close to cutter flank between the outer end face and cutter rake face 5 in face 4
10 edge.
Both cutter rake face 5, cutter flank 10 are obliquely installed.
Land 7, support bar 8 surface be in arc-shaped.
The utility model can firmly support machined hole when processing part, through support bar 8, accordingly even when
It also can guarantee extraordinary cylindricity in the environment of continuous discontinuously processing；When processing part, support bar 8 also acts as the cutter
The effect that part is squeezed and is polished.Improve the surface roughness in hole；Improve processing efficiency.
Claims (4)
1. a kind of band supports three cutting drills, including knife handle (1), the end face centre of gyration of knife handle (1) working end to be uniformly arranged three and cut
Cut sword (9), it is characterised in that: the two sides of every cutting edge (9) are respectively cutter rake face (5), cutter flank (10), adjacent
End tooth major first flank (4), the second flank of end tooth (3), the second flank of end tooth is arranged in region between two cutting edges (9)
It (3) is sector structure, step rear face (2) are arranged in the arc surface support of the second flank of end tooth (3), step rear face (2)
The outer surface of outer surface one end projection land (7), other end projection support bar (8), the step rear face (2) is additionally provided with branch
Hold a cutter groove (6).
2. three cutting drills of band support as described in claim 1, it is characterised in that: the end tooth major first flank (4), end tooth second
The neighbouring end face of both flanks (3) sticks together, the outer end face of end tooth major first flank (4) and cutter rake face (5) it
Between there is gap, the edge of the other end of the second flank of end tooth (3) close to cutter flank (10).
3. three cutting drills of band support as described in claim 1, it is characterised in that: the cutter rake face (5), cutter flank
(10) the two is obliquely installed.
4. three cutting drills of band support as described in claim 1, it is characterised in that: the land (7), support bar (8) surface be in
Arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535044.8U CN208230922U (en) | 2018-04-10 | 2018-04-10 | Band three cutting drills of support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820535044.8U CN208230922U (en) | 2018-04-10 | 2018-04-10 | Band three cutting drills of support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208230922U true CN208230922U (en) | 2018-12-14 |
Family
ID=64583764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820535044.8U Expired - Fee Related CN208230922U (en) | 2018-04-10 | 2018-04-10 | Band three cutting drills of support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208230922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178564A (en) * | 2021-12-31 | 2022-03-15 | 四川普什宁江机床有限公司 | Deep hole reverse boring cutter for thin-wall pipe |
-
2018
- 2018-04-10 CN CN201820535044.8U patent/CN208230922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178564A (en) * | 2021-12-31 | 2022-03-15 | 四川普什宁江机床有限公司 | Deep hole reverse boring cutter for thin-wall pipe |
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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 |
Granted publication date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |