CN204053024U - A kind of aperture knife tool - Google Patents
A kind of aperture knife tool Download PDFInfo
- Publication number
- CN204053024U CN204053024U CN201420380061.0U CN201420380061U CN204053024U CN 204053024 U CN204053024 U CN 204053024U CN 201420380061 U CN201420380061 U CN 201420380061U CN 204053024 U CN204053024 U CN 204053024U
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- China
- Prior art keywords
- axially directed
- cutting tip
- drill body
- guidance set
- directed bar
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- Expired - Lifetime
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- 238000005520 cutting process Methods 0.000 claims abstract description 80
- 239000002826 coolant Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000005553 drilling Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a kind of aperture knife tool, comprise drill body, cutting tip group and cutting tip locking member, described cutting tip group is fixed on described drill body by cutting tip locking member, described drill body offers chip area, described drill body is provided with front guidance set and rear guidance set, described front guidance set is arranged on the head of described drill body, described rear guidance set is arranged near the shank of described drill body, described front guidance set comprises the first axially directed bar and the second axially directed bar, described first axially directed bar is perpendicular to described cutting tip group, the radial angle of described first axially directed bar and the second axially directed bar is obtuse angle alpha, described rear guidance set comprises the 3rd axially directed article and four-axial gib block, it is simple that aperture knife tool of the present utility model has structure, little and the advantage that deep hole machining precision is high of cutting vibration.
Description
Technical field
The utility model relates to cutting tool, particularly relates to a kind of aperture knife tool.
Background technology
In prior art, tool category for deep hole machining is a lot, that commonly uses at present has speciality fluted drill, drill gun, BTA drill bit and self-contained jet drilling etc., and they have certain shortcoming in manufacture with in using, as speciality fluted drill chip removal difficulty, creep in drilling process two to three times of apertures dark after just need frequently to griffe chip removal, lubrication and the cooling condition of cutting edge are poor, and cutting temperature is high, and drilling life of bit is low, drill bit poor rigidity, easily causes self-excited vibration.Drill gun, manufacture needs carbide alloy as blade, and blade welds more difficult with cutter hub; Self-contained jet drilling needs special plane or the sealing of a set of dedicated hydraulic for pressing system in use, complex structure and be not easy to operation.
Notification number be CN1356933A patent document discloses a kind of depth drill, this depth drill comprises a drill bit and a coupling part formed with drill bit, coupling part has screw thread, drill bit is provided with a smear removal cutting tip, at least one supporting pad and at least one guide rod, drill bit has at least one for discharging the opening of chip, opening forms the inner passage of drill bit, the depth drill of the program is adopted to obtain good cooling effect, but also there is following deficiency in this deep hole drill: first, coupling part has screw thread and makes to adopt special plane to install this deep hole drill, and common universal machine tools can not be adopted, secondly, in the deep hole machining that draw ratio is larger, its guide function is obviously not enough, easily makes hole and predetermined off-centring.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, provides that a kind of structure is simple, cutting vibration is little and the aperture knife tool that deep hole machining precision is high.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of deep hole processing drill bit, comprise drill body, cutting tip group and cutting tip locking member, described cutting tip group is fixed on described drill body by cutting tip locking member, described drill body offers chip area, described drill body is provided with front guidance set and rear guidance set, described front guidance set is arranged on the head of described drill body, described rear guidance set is arranged near the shank of described drill body, described front guidance set comprises the first axially directed bar and the second axially directed bar, described first axially directed bar is perpendicular to described cutting tip group, the radial angle of described first axially directed bar and the second axially directed bar is obtuse angle alpha, described rear guidance set comprises the 3rd axially directed article and four-axial gib block.
Further improvement as technique scheme:
The axial distance of described front guidance set and rear guidance set is d, and 80mm≤d≤200mm.
90°≤α≤120°。
Described first axially directed bar is identical with the axial location of the second axially directed bar, described 3rd axially directed article identical with the axial location of four-axial gib block.
The axis of first axially directed article, second axially directed article, the 3rd axially directed article and four-axial gib block and described drill body has axial angle β, and 0.2 °≤β≤1 °.
Offer two coolant channels in described drill body, described coolant channel axially runs through described drill body.
Described cutting tip group comprises radially-arranged first cutting tip, the second cutting tip and the 3rd cutting tip, and described first cutting tip, the second cutting tip and the 3rd cutting tip are side set distribution.
The shank of described drill body is set to cylindrical handle or circular cone handle.
Compared with prior art, the utility model has the advantage of:
Deep hole processing drill bit of the present utility model, comprise drill body, cutting tip group and cutting tip locking member, cutting tip group is fixed on drill body by cutting tip locking member, drill body offers chip area, drill body is provided with front guidance set and rear guidance set, front guidance set is arranged on the head of drill body, rear guidance set is arranged near the shank of drill body, front guidance set comprises the first axially directed bar and the second axially directed bar, first axially directed bar is perpendicular to cutting tip group, the radial angle of the first axially directed bar and the second axially directed bar is obtuse angle alpha, rear guidance set comprises the 3rd axially directed article and four-axial gib block, first axially directed bar can balance the cutting force perpendicular to the insert orientation of cutting tip group and slow down cutting vibration, second axially directed bar can balance the cutting force that is parallel to cutting tip group insert orientation and slow down cutting vibration, when cutting tip group incision workpiece is more shallow, first axially directed bar and the second axially directed bar of front guidance set play self-steering effect, make cutting tip group along predetermined center incision inside workpiece, after drill body enters workpiece certain distance, the guide effect of front guidance set is not enough to keep drill body deeply to cut along predetermined center, at this moment, rear guidance set just serves guide effect, drill body is made to continue deeply to cut along predetermined center, front guidance set and rear guidance set constitute dual guiding, and steering capability is stablized, and improve the machining accuracy in hole.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model aperture knife tool.
Fig. 2 is the front view of the utility model aperture knife tool.
Fig. 3 is the top view of the utility model aperture knife tool.
Fig. 4 is the partial enlarged drawing of Fig. 2.
In figure, each label represents:
1, drill body; 2, cutting tip group; 21, the first cutting tip; 22, the second cutting tip; 23, the 3rd cutting tip; 3, cutting tip locking member; 4, front guidance set; 41, the first axially directed bar; 42, the second axially directed bar; 5, rear guidance set; 51, the 3rd axially directed article; 52, four-axial gib block; 6, chip area; 7, coolant channel; 8, axis.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the utility model is described in further details
Fig. 1 to Fig. 4 shows a kind of embodiment of the utility model aperture knife tool, this aperture knife tool comprises drill body 1, cutting tip group 2 and cutting tip locking member 3, cutting tip group 2 is fixed on drill body 1 by cutting tip locking member 3, drill body 1 offers chip area 6, drill body 1 is provided with front guidance set 4 and rear guidance set 5, front guidance set 4 is arranged on the head of drill body 1, rear guidance set 5 is arranged near the shank of drill body 1, front guidance set 4 comprises the first axially directed bar 41 and the second axially directed bar 42, first axially directed bar 41 is perpendicular to cutting tip group 2, the radial angle of the first axially directed bar 41 and the second axially directed bar 42 is obtuse angle alpha, rear guidance set 5 comprises the 3rd axially directed article 51 and four-axial gib block 52, first axially directed bar 41 can balance the cutting force perpendicular to the insert orientation of cutting tip group 2 and slow down cutting vibration, second axially directed bar 42 can balance the cutting force that is parallel to cutting tip group 2 insert orientation and slow down cutting vibration, when cutting tip group 2 cut workpiece more shallow time, first axially directed bar 41 of front guidance set 4 and the second axially directed bar 42 play self-steering effect, make cutting tip group 2 along predetermined center incision inside workpiece, after drill body 1 enters workpiece certain distance, the guide effect of front guidance set 4 is not enough to keep drill body 1 deeply to cut along predetermined center, at this moment, rear guidance set 5 just serves guide effect, drill body 1 is made to continue deeply to cut along predetermined center, front guidance set 4 and rear guidance set 5 constitute dual guiding, and steering capability is stablized, and improve the machining accuracy in hole.
The axial distance of front guidance set 4 and rear guidance set 5 is d, and 80mm≤d≤200mm, axial distance d determine deeply according to effective brill of drill body 1 usually, and in the present embodiment, axial distance d equals 100 mm.
The radial angle α of the first axially directed bar 41 and the second axially directed bar 42 meets: 90 ° of ﹤ α≤120 °, in the present embodiment, α equals 120 °, by the cutting force of the complex equilibrium cutting tip group 2 of the first axially directed bar 41 and the second axially directed bar 42 to slow down cutting vibration.
In the present embodiment, the first axially directed bar 41 is identical with the axial location of the second axially directed bar 42, and the 3rd axially directed article 51 identical with the axial location of four-axial gib block 52.
First axially directed article 41, second axially directed article 42, the 3rd axially directed article 51 and four-axial gib block 52 have axial angle β with the axis 7 of drill body 1, and 0.2 °≤β≤1 °, in the present embodiment, β equals 0.5 °, by arranging axial angle β, reducing the contact area of each gib block and hole wall, reducing the frictional force with hole wall, make cutting quicker, laborsaving, do not affect again the guide effect of each gib block simultaneously.
In the present embodiment, offer two coolant channels 7 in drill body 1, coolant channel 7 axially runs through drill body 1, cooling agent can be got on the head of drill body 1, effectively reduce cutting temperature, and contribute to the discharge of chip.
In the present embodiment, cutting tip group 2 comprises radially-arranged first cutting tip 21, second cutting tip 22 and the 3rd cutting tip 23, first cutting tip 21, second cutting tip 22 and the distribution in side set of the 3rd cutting tip 23, can reduce cutting force when cutting effectively.
In the present embodiment, the shank of drill body 1 is set to cylindrical handle or circular cone handle, facilitates the connection of drill body 1 and lathe.
Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (8)
1. an aperture knife tool, comprise drill body (1), cutting tip group (2) and cutting tip locking member (3), described cutting tip group (2) is fixed on described drill body (1) by cutting tip locking member (3), described drill body (1) offers chip area (6), it is characterized in that: described drill body (1) is provided with front guidance set (4) and rear guidance set (5), described front guidance set (4) is arranged on the head of described drill body (1), described rear guidance set (5) is arranged near the shank of described drill body (1), described front guidance set (4) comprises the first axially directed bar (41) and the second axially directed bar (42), described first axially directed bar (41) is perpendicular to described cutting tip group (2), the radial angle of described first axially directed bar (41) and the second axially directed bar (42) is obtuse angle alpha, described rear guidance set (5) comprises the 3rd axially directed article (51) and four-axial gib block (52).
2. aperture knife tool according to claim 1, is characterized in that: the axial distance of described front guidance set (4) and rear guidance set (5) is d, and 80mm≤d≤200mm.
3. aperture knife tool according to claim 1 and 2, is characterized in that: 90 ° of ﹤ α≤120 °.
4. aperture knife tool according to claim 1 and 2, it is characterized in that: described first axially directed bar (41) is identical with the axial location of the second axially directed bar (42), and described 3rd axially directed article (51) are identical with the axial location of four-axial gib block (52).
5. aperture knife tool according to claim 1 and 2, it is characterized in that: first axially directed article (41), second axially directed article (42), the 3rd axially directed article (51) and four-axial gib block (52) have axial angle β with the axis of described drill body (1), and 0.2 °≤β≤1 °.
6. aperture knife tool according to claim 1 and 2, is characterized in that: offer two coolant channels (7) in described drill body (1), and described coolant channel (7) axially runs through described drill body (1).
7. aperture knife tool according to claim 1 and 2, it is characterized in that: described cutting tip group (2) comprises radially-arranged first cutting tip (21), the second cutting tip (22) and the 3rd cutting tip (23), described first cutting tip (21), the second cutting tip (22) and the 3rd cutting tip (23) distribute in side set.
8. aperture knife tool according to claim 1 and 2, is characterized in that: the shank of described drill body (1) is set to cylindrical handle or circular cone handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380061.0U CN204053024U (en) | 2014-07-10 | 2014-07-10 | A kind of aperture knife tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380061.0U CN204053024U (en) | 2014-07-10 | 2014-07-10 | A kind of aperture knife tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204053024U true CN204053024U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380061.0U Expired - Lifetime CN204053024U (en) | 2014-07-10 | 2014-07-10 | A kind of aperture knife tool |
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| Country | Link |
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| CN (1) | CN204053024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860708A (en) * | 2019-12-10 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Adjustable anti-seismic boring tool |
-
2014
- 2014-07-10 CN CN201420380061.0U patent/CN204053024U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110860708A (en) * | 2019-12-10 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Adjustable anti-seismic boring tool |
| CN110860708B (en) * | 2019-12-10 | 2021-01-01 | 株洲钻石切削刀具股份有限公司 | Adjustable anti-seismic boring tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
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| CX01 | Expiry of patent term |