CN107008951B - A kind of drill reamer - Google Patents
A kind of drill reamer Download PDFInfo
- Publication number
- CN107008951B CN107008951B CN201710265335.XA CN201710265335A CN107008951B CN 107008951 B CN107008951 B CN 107008951B CN 201710265335 A CN201710265335 A CN 201710265335A CN 107008951 B CN107008951 B CN 107008951B
- Authority
- CN
- China
- Prior art keywords
- land
- main
- group
- cutting edge
- outer diameter
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of drill reamers, including shank and cutting portion, the cutting portion includes main cutting edge and end cutting edge, the end cutting edge includes two groups of land groups, land group described in every group includes a main land being arranged in the shape of a spiral and at least one secondary land, each secondary land is sequentially arranged in the side of the main land, two groups of land groups are about the shank axis central symmetry, two main chip spaces are wherein formed in the main land in one group of land group and another group between the last item pair land, in every group of land group, secondary chip space is formed between the main land and first secondary land and between each secondary land, the main land is cutting edge, the pair land is cylindrical edge, the outer diameter of the main land is greater than the outer diameter of each secondary land, the axial length of the main land is all larger than the axial length of each secondary land.The present invention integrates drilling ream, and it is good to have the advantages that simplify processing technology, suface processing quality.
Description
Technical field
The present invention relates to metal cutting tool technical field more particularly to a kind of drill reamers.
Background technique
In metal cutting process industry, the general processing technology in hole higher for required precision be drilling → reaming →
Fraising.I.e. in processing, is punched first using drill bit, reuse reamer and finished, needed before reamer is finished
Semifinishing is carried out using knife is expanded.Due to being needed in process using different cutters, and tool change time is also added,
Lead to that processing efficiency is low, the cost of charp tool increases.With the continuous improvement of customer requirement, production efficiency become client reduce at
This, improve yield an important factor for one of, therefore simplify processing technology, improve efficiency be current development trend.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provides and a kind of integrate drilling ream
, simplify processing technology, the drill reamer that suface processing quality is good.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of drill reamer, including shank and cutting portion, the cutting portion include main cutting edge and end cutting edge, institute
Stating end cutting edge includes two groups of land groups, and land group described in every group includes the main land and at least one being arranged in the shape of a spiral
Secondary land, each secondary land are sequentially arranged in the side of the main land, and two groups of land groups are about the shank axis center pair
Claim, wherein main chip space is formed between the last item pair land in main land in one group of land group and another group, at every group
In land group, secondary chip space, the main land are formed between the main land and first secondary land and between each secondary land
For cutting edge, the pair land is cylindrical edge, and the outer diameter of the main land is greater than the outer diameter of each secondary land, the axial direction of the main land
Length is all larger than the axial length of each secondary land.
As a further improvement of the above technical scheme:
Difference between the main land outer diameter and each secondary land outer diameter is 0.002mm~0.01mm.
The pair land is equipped with multiple spaced apart chip dividing grooves.
Chip dividing groove on each secondary land is arranged in a staggered manner.
The bottom of the chip dividing groove is inner circle arcuation, has angle α between the two sidewalls of the chip dividing groove, and α value is 55 °
~65 °, the depth of the chip dividing groove is 0.2mm~0.4mm.
There is interior cold oil hole, the cutting portion is run through in the interior cold oil hole in the flank of the main cutting edge.
In every group of land group, the axial length of the main land and the axial length difference of any bar pair land are 1mm
~3mm.
Compared with the prior art, the advantages of the present invention are as follows:
1, drill reamer of the invention, when being cut, main cutting edge elder generation contact workpiece carries out normal drilling,
When main cutting edge after processing is completed, end cutting edge enters workpiece, and due to being higher than secondary land in main land axial direction, and main land is cutting edge of a knife or a sword
Sword, so main land carries out shear action first, after main land completes shear action, secondary land enters workpiece, due to secondary sword
Band is cylindrical edge and outer diameter is slightly less than main land, so secondary land carries out extrusion process, workpiece is made to obtain better finished surface
Quality simplifies processing technology, and the drill reamer of the structure, end cutting edge integrates drilling ream, has simultaneously
Cutting and the effect squeezed, i.e., first cut, then squeeze, ensure that the surface quality in hole on workpiece well.
2, drill reamer of the invention, designs chip dividing groove on end cutting edge, can effective chip breaking and point bits, make iron
Bits can smoothly be discharged without entering cutting zone, to ensure that the surface quality of part well.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is side structure schematic view of the invention.
Fig. 3 is enlarged drawing at A in Fig. 1.
Fig. 4 is the structural schematic diagram of chip dividing groove of the invention.
Fig. 5 is the axial length schematic diagram of main land of the invention, secondary land.
Each label indicates in figure:
1, main cutting edge；10, shank；2, end cutting edge；3, main land；4, secondary land；5, main chip space；6, secondary chip removal
Slot；7, chip dividing groove；8, interior cold oil hole.
Specific embodiment
Below in conjunction with Figure of description and specific embodiment, invention is further described in detail.
Fig. 1 to Fig. 5 shows a kind of embodiment of drill reamer of the present invention, which includes shank 10
And cutting portion, cutting portion include main cutting edge 1 and end cutting edge 2, end cutting edge 2 includes two groups of land groups, every group of land group packet
The main land 3 of one be arranged in the shape of a spiral and at least one secondary land 4 are included, each secondary land 4 is sequentially arranged in the one of main land 3
Side, two groups of land groups are symmetrical about 10 axis centre of shank, wherein last in the main land 3 in one group of land group and another group
Main chip space 5 is formed between item pair land 4, it is between main land 3 and first secondary land 4 and each in every group of land group
Secondary chip space 6 is formed between secondary land 4, main land 3 is cutting edge, and two secondary lands 4 are cylindrical edge, and the outer diameter of main land 3 is greater than
The outer diameter of secondary land 4, the axial length of main land 3 are all larger than the axial length of each secondary land 4.
In the present embodiment, and then the secondary land 4 of main land 3 is first secondary land 4 in every group of land group, with the
One secondary land 4 is adjacent for Article 2 pair land 4, is the last item pair land 4 with main 3 furthest apart of land.This implementation
Example is by taking every group of land group includes a main land 3 and two secondary lands 4 as an example, as shown in Fig. 2, forming two between two groups of land groups
A big main chip space 5, four small secondary chip spaces 6, i.e. one group of main land 3 and another group of the last item pair land 4 it
Between form main chip space 5, form secondary chip space 6 in every group between first secondary land 4 and main land 3, first secondary land 4 with
Secondary chip space 6 is formed between Article 2 pair land 4.
When being cut, the first contact workpiece of main cutting edge 1 carries out normal drilling, when main cutting edge 1 after processing is completed,
End cutting edge 2 enters workpiece.Due to being higher than secondary land 4 in main 3 axial direction of land, and main land 3 is cutting edge, so main land 3 is first
First carry out shear action, when main land 3 complete shear action after, secondary land 4 enter workpiece, due to secondary land 4 be cylindrical edge and
Outer diameter is slightly less than main land 3, so secondary land 4 carries out extrusion process, workpiece is made to obtain better machined surface quality.This implementation
The drill reamer of example, end cutting edge 2 have the function of cutting and extruding simultaneously, i.e., first cut, then squeeze, and guarantee well
The surface quality in hole on workpiece.
In specific application example, the difference between 4 outer diameter of main 3 outer diameter of land and secondary land is in 0.002mm~0.01mm
It is interior.In the present embodiment, two main 3 outer diameters of land are greater than four secondary lands 4, difference 0.01mm.
In every group of land group, the axial height difference of the axial length of main land 3 and any bar pair land 4 be 1mm~
3mm.In the present embodiment, as shown in figure 5, the axial length H of main land 3, the axial height of remaining two secondary lands 4 be H1 and
H2, H > H1, the difference between H and H1 is 1mm, H1 > H2, thus ensure that the main land 3 that two are cutting edge is first cut,
It is squeezed after four secondary lands 4 for cylindrical edge, to disposably process while achieve the effect that drilling and reaming.
In the present embodiment, secondary land 4 is equipped with multiple spaced apart chip dividing grooves 7.Chip dividing groove 7 on each pair land 4 is wrong
It opens up and sets.The bottom of chip dividing groove 7 is inner circle arcuation, has angle α between the two sidewalls of chip dividing groove 7, and α value is 55 °~65 °,
The depth h of chip dividing groove 7 is 0.2mm~0.4mm.In the present embodiment, α is 60 ° ± 5 °, and h value is 0.4mm.In the mistake of cutting
Cheng Zhonghui generates elongated iron filings, and this iron filings generate friction with surface to be machined by may enter the flank of cutter, from
And destroy surface quality.The present embodiment designs chip dividing groove 7 on secondary land 4, can effective chip breaking and point bits, keep iron filings suitable
The discharge of benefit is without entering cutting zone, to ensure that the surface quality of part well.
In the present embodiment, there is interior cold oil hole 8 in the flank of main cutting edge 1, cutting portion is run through in interior cold oil hole 8.It carries out
When cutting, the first contact workpiece of main cutting edge 1 carries out normal drilling, can since 1 flank of main cutting edge has interior cold oil hole 8
Generated heat is cut greatly to reduce, main cutting edge 1 is effectively protected, reduces its abrasion, it is suitable to be also beneficial to iron filings
The discharge of benefit.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (6)
1. a kind of drill reamer, including shank (10) and cutting portion, it is characterised in that: the cutting portion includes main cutting edge
(1) and end cutting edge (2), the end cutting edge (2) include two groups of land groups, and land group described in every group includes being arranged in the shape of a spiral
A main land (3) and two secondary lands (4), each secondary land (4) is sequentially arranged in the side of the main land (3), two
Group land group is symmetrical about the shank (10) axis centre, wherein main land (3) in one group of land group with another group in most
Main chip space (5) are formed between latter item pair land (4), in every group of land group, the main land (3) and first secondary sword
Secondary chip space (6) is formed between band (4) and between each secondary land (4), the main land (3) is cutting edge, the pair land (4)
For cylindrical edge, the outer diameter of the main land (3) is greater than the outer diameter of each secondary land (4), main land (3) outer diameter and each secondary land
(4) difference between outer diameter is 0.002mm~0.01mm, and the axial length of the main land (3) is all larger than each secondary land (4)
Axial length.
2. drill reamer according to claim 1, it is characterised in that: the pair land (4) is equipped with multiple intervals
The chip dividing groove (7) of arrangement.
3. drill reamer according to claim 2, it is characterised in that: the chip dividing groove (7) on each secondary land (4)
It is arranged in a staggered manner.
4. drill reamer according to claim 2, it is characterised in that: the bottom of the chip dividing groove (7) is Inner arc
Shape has angle α between the two sidewalls of the chip dividing groove (7), and α value is 55 °~65 °, and the depth of the chip dividing groove (7) is
0.2mm~0.4mm.
5. drill reamer according to any one of claims 1 to 4, it is characterised in that: the main cutting edge (1)
There is interior cold oil hole (8), the interior cold oil hole (8) runs through the cutting portion (20) in flank.
6. drill reamer according to any one of claims 1 to 4, it is characterised in that: in every group of land group, institute
The axial length difference of the axial length and any bar pair land (4) of stating main land (3) is 1mm~3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265335.XA CN107008951B (en) | 2017-04-21 | 2017-04-21 | A kind of drill reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265335.XA CN107008951B (en) | 2017-04-21 | 2017-04-21 | A kind of drill reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008951A CN107008951A (en) | 2017-08-04 |
| CN107008951B true CN107008951B (en) | 2019-10-29 |
Family
ID=59448080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265335.XA Active CN107008951B (en) | 2017-04-21 | 2017-04-21 | A kind of drill reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008951B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465852A (en) * | 2018-06-14 | 2018-08-31 | 江门市中刀精密科技有限公司 | A kind of brill milling hinge composite cutter |
| WO2020037129A1 (en) * | 2018-08-17 | 2020-02-20 | Star Cutter Company | Cutting tool with protected joint |
| CN110405258A (en) * | 2019-06-28 | 2019-11-05 | 株洲钻石切削刀具股份有限公司 | A kind of taper drilling reamer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202539643U (en) * | 2012-02-18 | 2012-11-21 | 沈阳飞机工业（集团）有限公司 | Combined drilling and reaming tool special for machining titanium alloy |
| CN202606943U (en) * | 2012-06-19 | 2012-12-19 | 武汉泰尔斯刀具有限公司 | Four-edge molding drill cutter for through holes |
| CN102950314A (en) * | 2012-11-21 | 2013-03-06 | 大连经济技术开发区伊达工具有限公司 | Alloy drilling reamer |
| CN103418845A (en) * | 2013-08-14 | 2013-12-04 | 重庆长安汽车股份有限公司 | Reaming and extruding cutter |
| CN203401159U (en) * | 2013-08-05 | 2014-01-22 | 长春一汽天奇精锐工具有限公司 | Taper bit |
| CN204035637U (en) * | 2014-06-20 | 2014-12-24 | 杭州浙锚预应力有限公司 | Integral type drilling reamer |
| CN104551121A (en) * | 2014-12-30 | 2015-04-29 | 苏州用朴合金工具有限公司 | Corn twist drill |
| CN205673658U (en) * | 2016-06-20 | 2016-11-09 | 上海应用技术学院 | A kind of physical vapour deposition (PVD) CrN coated on titanium alloy drill reamer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61100306A (en) * | 1984-10-18 | 1986-05-19 | Toyota Motor Corp | Drilling tool |
-
2017
- 2017-04-21 CN CN201710265335.XA patent/CN107008951B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202539643U (en) * | 2012-02-18 | 2012-11-21 | 沈阳飞机工业（集团）有限公司 | Combined drilling and reaming tool special for machining titanium alloy |
| CN202606943U (en) * | 2012-06-19 | 2012-12-19 | 武汉泰尔斯刀具有限公司 | Four-edge molding drill cutter for through holes |
| CN102950314A (en) * | 2012-11-21 | 2013-03-06 | 大连经济技术开发区伊达工具有限公司 | Alloy drilling reamer |
| CN203401159U (en) * | 2013-08-05 | 2014-01-22 | 长春一汽天奇精锐工具有限公司 | Taper bit |
| CN103418845A (en) * | 2013-08-14 | 2013-12-04 | 重庆长安汽车股份有限公司 | Reaming and extruding cutter |
| CN204035637U (en) * | 2014-06-20 | 2014-12-24 | 杭州浙锚预应力有限公司 | Integral type drilling reamer |
| CN104551121A (en) * | 2014-12-30 | 2015-04-29 | 苏州用朴合金工具有限公司 | Corn twist drill |
| CN205673658U (en) * | 2016-06-20 | 2016-11-09 | 上海应用技术学院 | A kind of physical vapour deposition (PVD) CrN coated on titanium alloy drill reamer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008951A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107008951B (en) | A kind of drill reamer | |
| CN103381496A (en) | Compound positioning and cutting spiral cutter | |
| CN201552329U (en) | Twist drill used for machining metal with high percentage elongation | |
| CN101912987A (en) | Drill bit for processing deep hole with large length-diameter ratio | |
| CN103128346A (en) | Twist drill with spiral cutting back tool | |
| CN103521843A (en) | Deep-hole reverse-pulling reamer | |
| JP2009056534A (en) | Drill for spot facing | |
| CN109262025A (en) | A kind of drilling tool | |
| CN110560753A (en) | Drilling and rolling combined forming cutter | |
| CN102922010A (en) | Self-lubricating twist drill and machining method thereof | |
| CN110560783A (en) | Hinge and roller combined forming cutter | |
| CN204975452U (en) | Optimize spot facing work drill bit of chip groove | |
| CN113814448A (en) | Antifriction type deep hole drill bit | |
| CN203304646U (en) | Chip dividing straight flute bit | |
| CN209110249U (en) | Hard alloy forms gouge bit | |
| CN210172607U (en) | Chip-breaking twist drill | |
| CN106513791A (en) | Twist drill for machining stainless steel | |
| CN203711944U (en) | Durable drill | |
| CN206445256U (en) | Step depth drill and drilling tool | |
| CN101670459A (en) | Twist drill with small helix angle | |
| CN210937446U (en) | Reamer and gear wheel tooth hole finish reaming drilling machine thereof | |
| CN215902796U (en) | Antifriction type deep hole drill bit | |
| CN206263306U (en) | It is a kind of to improve the apex point that alloy bores chip-breaking performance | |
| CN201940701U (en) | Adjustable machine reamer | |
| CN216912225U (en) | Vibration-suppressing antifriction type deep hole drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |