CN106964802A - Small-deep Hole expanding method and its cutter - Google Patents
Small-deep Hole expanding method and its cutter Download PDFInfo
- Publication number
- CN106964802A CN106964802A CN201710320018.3A CN201710320018A CN106964802A CN 106964802 A CN106964802 A CN 106964802A CN 201710320018 A CN201710320018 A CN 201710320018A CN 106964802 A CN106964802 A CN 106964802A
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- Prior art keywords
- angle
- drill gun
- plane
- deep hole
- small
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0018—Drills for enlarging a hole
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B43/00—Boring or drilling devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The present invention is specially a kind of Small-deep Hole expanding method and its cutter, and solving existing drill gun is used for the problem of surface roughness and linearity are difficult to ensure when Small-deep Hole reaming is processed.Small-deep Hole expanding method, processing feed technique is specially that drill bit feeds forward 0.08mm, then rewind 3mm, then F.F. 2.99mm, and 0.08mm is then fed again, and above-mentioned steps circulation is fed to process finishing.Small-deep Hole broad, specially drill gun cutter head sharpens certain angle, and the angle with crossing pasta inclined-plane 7 for crossing pasta 1 is respectively 20 ° and 15 °, and inner edge rear corner surface 2 and the angle of main inclined plane 5 are 15 °, point of a knife rear corner surface 4 and vertical plane angle are 25 °, and rear corner surface 3 is 20 ° with secondary inclined-plane 6 angle.The present invention can process the deep hole that linearity is high, surface roughness is good, and efficiency high, cost are low, applied widely.
Description
Technical field
The present invention relates to deep hole mechanical processing technique, specially a kind of Small-deep Hole expanding method and its cutter.
Background technology
The cutter of deep hole machining has a variety of, including drill gun, spray inhale brill, cylindrical drill, hard alloy rotatable depth drill, interior row
Consider depth drill to be worth doing and press dry the types such as formula deep hole processing system.
The ratio between general drilling hole depth and aperture are more than 10 hole, are referred to as deep hole.At present, Small-deep Hole is traditionally
Processing, can only use spreading fluted drill, often process the necessary withdrawing chip removal of depth of about 1~2 times of diameter, not only machining accuracy
Low, surface roughness is poor, and processing efficiency is low, labor intensity is big, and quality is difficult to ensure that, and is easy to cause " stifled bits " or fractures
Drill bit, causes bigger processing difficulties.Small-deep Hole reaming processing is even more extremely difficult, and big L/D ratio small deep hole reaming processing is tired
Disturb many enterprises.
Drill gun is gained the name because being used for weapons industry processing gun barrel earliest, is mainly used to process Φ 2~Φ 20mm small diameter and deep holes,
It is a kind of high-quality and efficient instrument in current gun drilling, drill gun side, which is provided with V-arrangement chip area, drill gun, is provided with two oil-feeds
Hole, solves the problems, such as part oil-feed and chip removal.The operation principle of drill gun is workpiece rotation, and drill bit makees straight-line feed, it is adaptable to match somebody with somebody
The lathe of standby high pressure cooling system and vertical machine, cutter or workpiece rotation occasion.But general drill gun expands as Small-deep Hole
There is surface roughness during hole and be difficult the problem of guarantee, linearity are difficult to ensure.
The content of the invention
The present invention is difficult to solve surface roughness and linearity when existing drill gun is used for Small-deep Hole reaming processing
The problem of guarantee, there is provided a kind of Small-deep Hole expanding method and its cutter.
The present invention adopts the following technical scheme that realization：Small-deep Hole expanding method, in the base of drill gun processing method
Feed technique is improved on plinth, it is characterised in that：Comprise the following steps：
（1）Excircle of workpiece roughing is processed using Double Tops method for machining bore；
（2）Using first step benchmark, rifle drill hole is processed in workpiece one end, and screw thread is processed in other end；
（3）The workpiece other end is blocked using existing accessory screwed plug；
（4）Start processing, method is pushed up using a folder one, processing feed technique is specially：Marched forward using macroprogram control drill bit
To 0.08mm, then rewind 3mm, then F.F. 2.99mm, then feeds 0.08mm again, and above-mentioned steps circulation is fed to processing knot
Beam.
Small-deep Hole broad, specially using existing drill gun, drill gun cutter head sharpening certain angle, the master of drill gun is oblique
Face and vertical plane angle are 20 °, and secondary inclined-plane and the vertical plane angle of drill gun are 25 °, and the pasta inclined-plane of crossing of drill gun is pressed from both sides with vertical plane
Angle is 30 °, after the sector both sides for crossing pasta of drill gun and the angle for crossing pasta inclined-plane are respectively 20 ° and 15 °, the inner edge of drill gun
Edged surface and main inclined plane angle are 15 °, and point of a knife rear corner surface and the vertical plane angle of drill gun are 25 °, the rear corner surface of drill gun and secondary inclined-plane
Angle is 20 °, and rear corner surface edge is cutting blade surface, and cutting blade surface is 15 ° with secondary inclined-plane angle.
Small-deep Hole broad coordinates the lathe for being equipped with high pressure cooling system and vertical machine to work.When in use,
Must first select the guide pin bushing being dimensioned for withstand on workpiece outer end, the gap on guide pin bushing and drill gun head be maintained at 0.003mm ~
Within 0.008mm, the machine tool chief axis of drill gun must have a higher axially and radially rigidity, and guide pin bushing and main shaft will have higher coaxial
Degree.Excircle of workpiece roughing is processed using Double Tops method for machining bore, it is ensured that endoporus and outer circles；Hole is drawn in processing, it is ensured that
Inner hole of workpiece surface keeps small―gap suture to coordinate with drill bit, makes guiding good；When drill gun works, coolant passes through circulation by high-pressure pump
Cooling system is through being sent into cutting tip inside drilling rod, to cool down and lubricate cutter, and by coolant pressure again by chip from
V-shaped groove discharge on the inwall and drilling rod in hole.The above-mentioned technique of angular compliance of cutter head sharpening can ensure each chip breaking total length
No more than 5mm, can cause chip breaking smoothly to discharge, and can be good at ensureing dimensional accuracy and roughness requirements.And endoporus
What the linearity guide sleeve that is then equipped with by lathe of requirement in itself and workpiece were provided with draw hole and drill gun draws the cooperation of set to ensure.It is grand
Program, according to feed technics institution, is that those skilled in the art easily realize.
Beneficial effects of the present invention are as follows：It is real using the cutting-tool angle and fine processing technology step rationally designed
Small-deep Hole reaming is showed.The present invention solves existing reamer using the drill gun reaming of particular design and cann't be solved very well
Deep hole and high accurate hole processing problems, the deep hole that linearity is high, surface roughness is good can be processed.Hole depth can be processed can
Up to 300mm ~ 1300mm.And when the fixed factors such as the speed of mainshaft, feed speed and coolant pressure all meet processing request,
Small-deep Hole expanding method can turn into simple process together, not influenceed by operating personnel's industrial grade, can produce consistent
Product.Meanwhile, this Small-deep Hole expanding method is applicable not only to special drill gun drilling machine, as long as lathe meet in high pressure it is cold and
Guiding condition, such a method can be realized, and economic serviceability is stronger.It is able to can also not only be applied with processing mold steel
In the deep hole machining of the plastics and high-strength alloy etc. such as glass fibre, Teflon (Teflon).
Brief description of the drawings
Fig. 1 is the side structure schematic view of Small-deep Hole broad；
Fig. 2 is the right side structural representation of Small-deep Hole broad；
In figure：1- crosses pasta, and 2- inner edge rear corner surfaces, 3- rear corner surfaces, 4- point of a knife rear corner surfaces, 5- main inclined planes, 6- pairs inclined-plane, 7- is excessively oily
Face inclined-plane, 8- cutting blade surfaces.
Embodiment
Small-deep Hole expanding method, improves feed technique on the basis of drill gun processing method, it is characterised in that：Including
Following steps：
（1）Excircle of workpiece roughing is processed using Double Tops method for machining bore；
（2）Using first step benchmark, rifle drill hole is processed in workpiece one end, and screw thread is processed in other end；
（3）The workpiece other end is blocked using existing accessory screwed plug；
（4）Start processing, method is pushed up using a folder one, processing feed technique is specially：Marched forward using macroprogram control drill bit
To 0.08mm, then rewind 3mm, then F.F. 2.99mm, then feeds 0.08mm again, and above-mentioned steps circulation is fed to processing knot
Beam.
Small-deep Hole broad, specially using existing drill gun, drill gun cutter head sharpening certain angle, the master of drill gun is oblique
Face（5）It is 20 ° with vertical plane angle, the secondary inclined-plane of drill gun（6）It is 25 ° with vertical plane angle, the pasta inclined-plane excessively of drill gun（7）With
Vertical plane angle is 30 °, the pasta excessively of drill gun（1）Sector both sides with crossing pasta inclined-plane（7）Angle be respectively 20 ° and
15 °, the inner edge rear corner surface of drill gun（2）With main inclined plane（5）Angle is 15 °, the point of a knife rear corner surface of drill gun（4）It is with vertical plane angle
25 °, the rear corner surface of drill gun（3）With secondary inclined-plane（6）Angle is 20 °, rear corner surface（3）Edge is cutting blade surface（9）, cut blade surface
（9）With secondary inclined-plane（6）Angle is 15 °.
In specific implementation process, generally, cutting speed is 1.1 ~ 1.65 meter per seconds, and the amount of feeding is 0.015 ~ 0.03
Millimeter/turn, oil pressure is 2.5 ~ 6.0Mpa, and flow is 0.2 ~ 0.65 liter/second.The cutting fluid that drill gun is used is special drill gun oil.
Drill gun must be mounted on special fixture and be sharpened by drill gun sharpening on omnipotent tool grinding machine or special cutter grinding machine, can select
The resin diamond grinding wheel of granularity 120 or so is sharpened, it is ensured that correct geometric angle and blade tip position.
Claims (2)
1. a kind of Small-deep Hole expanding method, improves feed technique on the basis of drill gun processing method, it is characterised in that：Bag
Include following steps：
（1）Excircle of workpiece roughing is processed using Double Tops method for machining bore；
（2）Using first step benchmark, rifle drill hole is processed in workpiece one end, and screw thread is processed in other end；
（3）The workpiece other end is blocked using existing accessory screwed plug；
（4）Start processing, method is pushed up using a folder one, processing feed technique is specially：Marched forward using macroprogram control drill bit
To 0.08mm, then rewind 3mm, then F.F. 2.99mm, then feeds 0.08mm again, and above-mentioned steps circulation is fed to processing knot
Beam.
2. a kind of Small-deep Hole broad, specially using existing drill gun, drill gun cutter head sharpening certain angle, its feature exists
In：The main inclined plane of drill gun（5）It is 20 ° with vertical plane angle, the secondary inclined-plane of drill gun（6）It is 25 ° with vertical plane angle, the mistake of drill gun
Pasta inclined-plane（7）It is 30 ° with vertical plane angle, the pasta excessively of drill gun（1）Sector both sides with crossing pasta inclined-plane（7）Angle
Respectively 20 ° and 15 °, the inner edge rear corner surface of drill gun（2）With main inclined plane（5）Angle is 15 °, the point of a knife rear corner surface of drill gun（4）With
Vertical plane angle is 25 °, the rear corner surface of drill gun（3）With secondary inclined-plane（6）Angle is 20 °, rear corner surface（3）Edge is cutting blade surface
（9）, cut blade surface（9）With secondary inclined-plane（6）Angle is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320018.3A CN106964802A (en) | 2017-05-09 | 2017-05-09 | Small-deep Hole expanding method and its cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320018.3A CN106964802A (en) | 2017-05-09 | 2017-05-09 | Small-deep Hole expanding method and its cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106964802A true CN106964802A (en) | 2017-07-21 |
Family
ID=59331163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710320018.3A Pending CN106964802A (en) | 2017-05-09 | 2017-05-09 | Small-deep Hole expanding method and its cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106964802A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900419A (en) * | 2017-11-06 | 2018-04-13 | 无锡鹰贝精密轴承有限公司 | High accurate hole processing cutter |
| CN111036951A (en) * | 2019-12-25 | 2020-04-21 | 北京航星机器制造有限公司 | A skin deep hole machining method with active cooling channels |
| CN111515433A (en) * | 2020-05-11 | 2020-08-11 | 山西平阳重工机械有限责任公司 | Method for machining deep hole on stainless steel part by numerical control deep hole drilling machine |
| CN112222474A (en) * | 2020-08-28 | 2021-01-15 | 盐城工学院 | Method for predicting and controlling straightness error of deep hole gun drill processing |
| CN117840486A (en) * | 2024-03-07 | 2024-04-09 | 中车南京浦镇车辆有限公司 | Variable parameter machining method suitable for deep hole drilling machining |
Citations (6)
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|---|---|---|---|---|
| CN2875659Y (en) * | 2006-04-03 | 2007-03-07 | 大连轻工业学院 | External chip discharging deep hole gun drill |
| WO2011132686A1 (en) * | 2010-04-19 | 2011-10-27 | 株式会社タンガロイ | Gun drill |
| DE102010050351A1 (en) * | 2010-11-05 | 2012-05-10 | Botek Präzisionsbohrtechnik Gmbh | gun drills |
| CN203509146U (en) * | 2013-11-07 | 2014-04-02 | 山东上汽汽车变速器有限公司 | Deep-hole drilling tool |
| JP5948236B2 (en) * | 2012-12-25 | 2016-07-06 | ユニタック株式会社 | Gun drill |
| CN206122749U (en) * | 2016-10-13 | 2017-04-26 | 大连鑫磊金刚石工具制造有限公司 | Minor diameter solid carbide drill gun |
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2017
- 2017-05-09 CN CN201710320018.3A patent/CN106964802A/en active Pending
Patent Citations (6)
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| CN2875659Y (en) * | 2006-04-03 | 2007-03-07 | 大连轻工业学院 | External chip discharging deep hole gun drill |
| WO2011132686A1 (en) * | 2010-04-19 | 2011-10-27 | 株式会社タンガロイ | Gun drill |
| DE102010050351A1 (en) * | 2010-11-05 | 2012-05-10 | Botek Präzisionsbohrtechnik Gmbh | gun drills |
| JP5948236B2 (en) * | 2012-12-25 | 2016-07-06 | ユニタック株式会社 | Gun drill |
| CN203509146U (en) * | 2013-11-07 | 2014-04-02 | 山东上汽汽车变速器有限公司 | Deep-hole drilling tool |
| CN206122749U (en) * | 2016-10-13 | 2017-04-26 | 大连鑫磊金刚石工具制造有限公司 | Minor diameter solid carbide drill gun |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107900419A (en) * | 2017-11-06 | 2018-04-13 | 无锡鹰贝精密轴承有限公司 | High accurate hole processing cutter |
| CN111036951A (en) * | 2019-12-25 | 2020-04-21 | 北京航星机器制造有限公司 | A skin deep hole machining method with active cooling channels |
| CN111515433A (en) * | 2020-05-11 | 2020-08-11 | 山西平阳重工机械有限责任公司 | Method for machining deep hole on stainless steel part by numerical control deep hole drilling machine |
| CN112222474A (en) * | 2020-08-28 | 2021-01-15 | 盐城工学院 | Method for predicting and controlling straightness error of deep hole gun drill processing |
| CN117840486A (en) * | 2024-03-07 | 2024-04-09 | 中车南京浦镇车辆有限公司 | Variable parameter machining method suitable for deep hole drilling machining |
| CN117840486B (en) * | 2024-03-07 | 2024-05-17 | 中车南京浦镇车辆有限公司 | Variable parameter machining method suitable for deep hole drilling machining |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |