CN205733147U - A kind of Flat head drill cutter - Google Patents
A kind of Flat head drill cutter Download PDFInfo
- Publication number
- CN205733147U CN205733147U CN201620678633.2U CN201620678633U CN205733147U CN 205733147 U CN205733147 U CN 205733147U CN 201620678633 U CN201620678633 U CN 201620678633U CN 205733147 U CN205733147 U CN 205733147U
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- blade
- knife
- cutting
- work portion
- bar
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Abstract
This utility model provides a kind of Flat head drill cutter, belongs to machine tools technical field.It solve the drill inaccurate problem of boring being currently used for boring.This Flat head drill cutter includes: knife bar, there is clamping part, work portion, work portion offers two chip areas being vertically arranged, the circumferential lateral surface in work portion is installed with some extruding bars, extruding bar is arranged near bottom and the lateral wall of extruding bar is that circular arc is arranged, and is further opened with the sprue for cutting fluid circulation in knife bar；Blade, it is plugged in center bottom, blade is provided with two cutting units, each cutting unit all includes point of a knife, cutting edge, each cutting edge both sides are provided with rake face, rear knife face, and rear knife face is inclined to set, and offers the fillet surface intersected with rake face away from point of a knife one end at rear knife face, and fillet surface is tilted to extend to blade sidewall by rear knife face to be formed, the curved setting of blade sidewall.This utility model has advantage accurately of holing.
Description
Technical field
This utility model belongs to machine tools technical field, relates to a kind of Flat head drill cutter.
Background technology
Cutter is the instrument in machine-building for machining, also known as cutting element.Most of cutter is that machine is used
, it is divided into face process tool, aperture knife tool, threading tool, gear cutting tool and cutting off tool etc..
Cutter generally comprises retained part, working portion, and working portion is exactly the part producing and processing chip, including cutter
Sword, chip is made to break broken or the structure, the chip removal that wind up or hold the structural element such as passage of the storage space of chip, cutting fluid.
The working portion of some cutters then comprises cutting tip and calibrated section, and the effect of cutting tip is to excise with blade
Chip, the effect of calibrated section is the finished surface that cut of smoothing and guides cutter.
Wherein aperture knife tool has drill bit, reamer, boring cutter, reamer and inner surface broaching tool etc., and most drill is general
The most only comprise cutting tip, when boring, error easily occurs, cause holing unsuccessfully；In addition the hole that drill is bored is nearly all band
The conical surface, needs the special circumstances of flat-bottom hole for some, then cannot be carried out work of holing accordingly.
In sum, it is currently used for the deficiency in the drill structure of boring for solution, needs a kind of reasonable in design, brill of design
Hole Flat head drill cutter accurately.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that a kind of reasonable in design, boring
Flat head drill cutter accurately.
The purpose of this utility model can be realized by following technical proposal: a kind of Flat head drill cutter, including:
Knife bar, has clamping part, the work portion being connected as a single entity, and described work portion is upper end near clamping part one end, described
Work portion is bottom away from clamping part one end, offers two chip areas being vertically arranged in work portion, and described chip area is by upper
End extends to bottom and the two chip areas axial line centrosymmetry about knife bar, is installed with and is positioned in the circumferential lateral surface in work portion
Some extruding bars between two chip areas, described extruding bar is arranged near bottom and the lateral wall of extruding bar is that circular arc is arranged,
In knife bar, it is further opened with the sprue for cutting fluid circulation and sprue sequentially passes through by clamping part, work portion；
Blade, be plugged in center bottom, and described blade is that class cuboid is arranged, and is provided with and is centrosymmetric on blade
Two cutting units, two cutting units and two chip area one_to_one corresponding, each cutting unit all includes point of a knife, cuts in horizontally disposed
Cutting sword, two points of a knife are opposing setting, and each cutting edge both sides are provided with rake face, rear knife face, and described rear knife face is inclined to be set
Put, offer the fillet surface intersected with rake face at rear knife face away from point of a knife one end, and described fillet surface is tilted to prolong by rear knife face
Extend blade sidewall to be formed, the curved setting of blade sidewall.
In above-mentioned a kind of Flat head drill cutter, being installed with two mounting blocks being centrosymmetric in bottom, two mounting blocks surround
Forming the mounting groove for installing blade, described sprue is positioned in the middle part of mounting groove, each mounting blocks all offers inclined
Arrange secondary fluid course and two secondary fluid courses respectively with sprue UNICOM, two mounting blocks offer installing hole the most respectively.
In above-mentioned a kind of Flat head drill cutter, the quantity of described extruding bar is four, and divides two-by-two and be listed in the two of chip area
Side.
Compared with prior art, this utility model reasonable in design, cutting edge is in being horizontally disposed with, it is possible to process flat
Hole, there is particularity；Sprue makes cutting fluid effectively can drop cutter and workpiece with the setting of secondary fluid course
Temperature also washes away chip, is conducive to the carrying out of boring work；The setting of extruding bar can carry out smoothing energy to manufactured hole
Cutter is guided to hole further, it is ensured that the accuracy of boring, it is ensured that drilling quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one preferred embodiment.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the part-structure schematic diagram of Fig. 1.
Fig. 4 is the structural representation of blade in this utility model one preferred embodiment.
In figure, 10, knife bar；11, clamping part；12, work portion；121, chip area；122, mounting blocks；1221, installing hole；
123, mounting groove；131, sprue；132, secondary fluid course；14, extruding bar；20, blade；21, point of a knife；22, cutting edge；23, front cutter
Face；24, rear knife face；25, fillet surface.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
As shown in Figures 1 to 4, this Flat head drill cutter includes:
Knife bar 10, has clamping part 11, the work portion 12 being connected as a single entity, and work portion 12 is upper near clamping part 11 one end
End, work portion 12 is bottom away from clamping part 11 one end, offers two chip areas 121 being vertically arranged in work portion 12, row
Bits groove 121 is extended to bottom and the two chip areas 121 axial line centrosymmetry about knife bar 10 by upper end, outside work portion 12
The multiple extruding bars 14 being installed with between two chip areas 121 on all sides, extruding bar 14 is arranged near bottom and extruding bar
The lateral wall of 14 is that circular arc is arranged, and is further opened with the sprue 131 for cutting fluid circulation and sprue 131 depends in knife bar 10
Secondary extend through clamping part 11, work portion 12；
Blade 20, is plugged in center bottom, and blade 20 is arranged in class cuboid, is provided with and is centrosymmetric on blade 20
Two cutting units, two cutting units and two chip area 121 one_to_one corresponding, each cutting unit all includes point of a knife 21, in level
The cutting edge 22 arranged, two points of a knife 21 are in opposing setting, and each cutting edge 22 both sides are provided with rake face 23, rear knife face 24,
Rear knife face 24 is inclined to set, and offers the fillet surface 25 intersected with rake face 23 away from point of a knife 21 one end at rear knife face 24, and
Fillet surface 25 is tilted to extend to blade 20 sidewall by rear knife face 24 to be formed, the curved setting of blade 20 sidewall.
Most drill of the prior art typically the most only comprises cutting tip, error easily occurs when boring, leads
Cause to hole unsuccessfully；In addition, the hole that drill is bored is nearly all the band conical surface, needs the special circumstances of flat-bottom hole for some,
Then cannot be carried out work of holing accordingly.
To this end, this utility model devises a kind of Flat head drill cutter, clamping part 11 is used for Cutting tool installation manner at corresponding equipment
On, work portion 12 then with blade 20 cooperating.Cutting edge 22 on blade 20 is arranged to level, can directly cut out flat
Bottom outlet, the crimpness of the chip now produced is limited, and the chip area 121 being vertically arranged does not interferes with the discharge of chip, and chip removal
Groove 121 is extended to bottom by upper end, and cutter is possible not only to process short-range hole, it is also possible to process deeper hole.
Machined hole wall can be carried out extruding smoothing by arranging of extruding bar 14, it is possible to the roughness of regulation hole wall, with
Time can also guide cutter, it is ensured that bore position is accurate, and drilling quality is good.Wherein, the lateral wall of extruding bar 14 is that circular arc sets
Put, and the isometrical setting of periphery formed when extruding the periphery formed when bar 14 rotates with blade 20 rotary cutting, protect
Card extruding bar 14 contacts with hole wall, extrudes the smoothing of bar 14, guiding function good.
Two cutting units on blade 20 are centrosymmetric, and when boring, blade 20 rotates along with knife bar 10 does together
Motion, when rotated, two cutting units work simultaneously, accelerate penetration rate and ensure the most again boring steadily, and cutting effect is good.
During boring, the chip produced under cutting edge 22 acts on is discharged along corresponding rake face 23, subsequently enters corresponding
Chip area 121, discharge, the setting of rake face 23 can control chip and discharge along both fixed tracks, it is ensured that chip suitable
Profit is discharged.
Cutting edge 22 is actually in the position of rake face 23 and the intersecting lens place of rear knife face 24, and rear knife face 24 is in inclining
Tiltedly arranging, concrete, rear knife face 24 arrives work portion to the distance in work portion 12 less than cutting edge 22 away from the side of cutting edge 22
The distance of 12, during boring, cutting edge 22 cuts workpiece, and then knife face 24 is inclined to set and can avoid connecing machined surface
Touch, it is ensured that boring work is smoothed out.
The setting of fillet surface 25, it is possible to avoid collapsing cutter and reducing the interference between parts, improve blade to a certain extent
The intensity of 20.The curved setting of blade 20 sidewall the most also can reduce interference unnecessary between blade 20 and workpiece, it is ensured that boring
Everything goes well with your work is carried out.
Preferably, being installed with two mounting blocks 122 being centrosymmetric in bottom, two mounting blocks 122 surround formation for pacifying
The mounting groove 123 of dress blade 20, sprue 131 is positioned in the middle part of mounting groove 123, each mounting blocks 122 all offers inclined
Arrange secondary fluid course 132 and two secondary fluid courses 132 respectively with sprue 131 UNICOM, two mounting blocks 122 offer installation the most respectively
Hole 1221.
Two mounting blocks 122 in the present embodiment and work portion 12 are connected as a single entity settings, the structural and stability of entirety
Good, the setting of mounting groove 123 has been also convenient for the installation of blade 20, during real work, can be loaded by the union piece such as screw, bolt
In corresponding installing hole 1221, blade 20 is fixedly mounted on bottom, work portion 12, it is ensured that blade 20 is firm with work portion 12
Connect, smooth working.
Arranging of sprue 131 and two secondary fluid courses 132 directly can provide cutting fluid to cutter, above-mentioned sprue 131 with
Two secondary fluid course 132 UNICOMs, during work, cutting fluid flows into from clamping part 11, through Hou Fen tri-tunnel, work portion 12 arrive blade 20 with
And at workpiece, on the one hand can reduce the temperature that cutter, workpiece produce in working angles, on the other hand can also fully wash away
Chip, avoids the hole of chip blocking processing, it is ensured that being smoothed out of boring work, it is ensured that the quality of boring further.
It is further preferred that the quantity of extruding bar 14 is four, and divide the both sides being listed in chip area 121 two-by-two.Concrete,
The quantity extruding bar 14 in the present embodiment is preferably four, and four extruding bars 14 are one group with two, between two chip areas 121
Position have at two, often the corresponding one group of extruding bar 14 in position, place, is evenly distributed, good working effect.
This Flat head drill cutter reasonable in design, cutting edge 22 is in being horizontally disposed with, it is possible to process flat hole；Sprue
131 make cutting fluid effectively can lower the temperature cutter and workpiece and wash away chip, favorably with the setting of secondary fluid course 132
Carrying out in boring work；The setting of extruding bar 14 can carry out smoothing and cutter can be guided to bore further manufactured hole
Hole, it is ensured that the accuracy of boring, it is ensured that drilling quality, practicality is good.
Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute
Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (2)
1. a Flat head drill cutter, it is characterised in that including:
Knife bar, has clamping part, the work portion being connected as a single entity, and described work portion is upper end near clamping part one end, described work
Portion is bottom away from clamping part one end, offers two chip areas being vertically arranged in work portion, and described chip area is prolonged by upper end
Extend bottom and the two chip areas axial line centrosymmetry about knife bar, the circumferential lateral surface in work portion is installed with and is positioned at two rows
Some extruding bars between bits groove, described extruding bar is arranged near bottom and the lateral wall of extruding bar is that circular arc is arranged, at cutter
It is further opened with the sprue for cutting fluid circulation in bar and sprue sequentially passes through by clamping part, work portion；
Blade, is plugged in center bottom, and described blade is that class cuboid is arranged, and is provided with two be centrosymmetric and cuts on blade
Cutting unit, two cutting units and two chip area one_to_one corresponding, each cutting unit all includes point of a knife, in horizontally disposed cutting
Sword, two points of a knife are opposing setting, and each cutting edge both sides are provided with rake face, rear knife face, and described rear knife face is inclined to set,
Offer the fillet surface intersected with rake face at rear knife face away from point of a knife one end, and described fillet surface is tilted to extend to by rear knife face
Blade sidewall is formed, the curved setting of blade sidewall.
A kind of Flat head drill cutter the most according to claim 1, it is characterised in that be installed with two peaces being centrosymmetric in bottom
Dress block, two mounting blocks surround the mounting groove formed for installing blade, and described sprue is positioned in the middle part of mounting groove, each mounting blocks
On all offer the secondary fluid course being inclined to set and two secondary fluid courses respectively with sprue UNICOM, two mounting blocks offer the most respectively
Installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678633.2U CN205733147U (en) | 2016-06-27 | 2016-06-27 | A kind of Flat head drill cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678633.2U CN205733147U (en) | 2016-06-27 | 2016-06-27 | A kind of Flat head drill cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205733147U true CN205733147U (en) | 2016-11-30 |
Family
ID=57379983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678633.2U Expired - Fee Related CN205733147U (en) | 2016-06-27 | 2016-06-27 | A kind of Flat head drill cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205733147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570804A (en) * | 2017-09-29 | 2018-01-12 | 苏州万润绝缘材料有限公司 | Remove technique in carbon crystal heating board pad top layer |
| CN109648614A (en) * | 2019-01-17 | 2019-04-19 | 上海仁朋实业有限公司 | A kind of superfine slot process tool for carbon product |
| CN110732707A (en) * | 2019-11-18 | 2020-01-31 | 中国空气动力研究与发展中心高速空气动力研究所 | clamping device capable of adjusting cutting diameter of drill bit |
-
2016
- 2016-06-27 CN CN201620678633.2U patent/CN205733147U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570804A (en) * | 2017-09-29 | 2018-01-12 | 苏州万润绝缘材料有限公司 | Remove technique in carbon crystal heating board pad top layer |
| CN109648614A (en) * | 2019-01-17 | 2019-04-19 | 上海仁朋实业有限公司 | A kind of superfine slot process tool for carbon product |
| CN110732707A (en) * | 2019-11-18 | 2020-01-31 | 中国空气动力研究与发展中心高速空气动力研究所 | clamping device capable of adjusting cutting diameter of drill bit |
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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 |
Granted publication date: 20161130 Termination date: 20170627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |