CN101502897B - High precision reamer - Google Patents
High precision reamer Download PDFInfo
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- CN101502897B CN101502897B CN2009100108481A CN200910010848A CN101502897B CN 101502897 B CN101502897 B CN 101502897B CN 2009100108481 A CN2009100108481 A CN 2009100108481A CN 200910010848 A CN200910010848 A CN 200910010848A CN 101502897 B CN101502897 B CN 101502897B
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- reamer
- cutter hub
- high precision
- blade
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- 238000005520 cutting process Methods 0.000 claims abstract description 24
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 229910010037 TiAlN Inorganic materials 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000001737 promoting effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 230000003292 diminished effect Effects 0.000 claims description 4
- 238000007747 plating Methods 0.000 abstract 1
- 239000011882 ultra-fine particle Substances 0.000 abstract 1
- 230000008676 import Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
A high-accuracy reamer consists of a cutter body and a cutter handle. Eight blades are arranged unequally along the periphery of the cutter body in a protruding way and are arranged in turn on the periphery of the cutter body according to the phase difference of angles: A=46 degrees, B=48 degrees, C=44 degrees, D==42 degrees, E=46 degrees, F=48 degrees, G=44 degrees and H=42 degrees; the included angles among cutting edges of each blade are respectively a=83 degrees, b=85 degrees, c=81 degrees, d=78 degrees, e=83 degrees, f=85 degrees, g=81 degrees and h=78 degrees; the blades adopt imported ultrafine particle alloy material and a physical coating method is adopted to coat the surface with TiAlN plating; the blades consist of a cutting part and a guide cone part and the cutting part of the blade is designed to be a guidance type with double angles of 45 degrees and 8 degrees; the cutter body adopts imported H13 alloy material. The unequal cutting edges ensure the intensity of each edge and expand a chip groove; the blades can stably go into workpieces so as to ensure that the cutter is applicable to high-speed cutting process, thus increasing the processing accuracy and efficiency.
Description
One, technical field
The present invention relates to a kind of metal machining tool, particularly a kind of high precision reamer of the processing usefulness that reams.
Two, background technology
At present, during a kind of hydraulic valve of production and processing, the valve opening that processing and valve rod match on valve body, what adopt usually is to bore, expand, cut with scissors, grind process.Wherein in the fraising operation, because the durability of existing reamer is low, in a collection of workpiece, the uniformity of its dimensional accuracy and surface roughness, stability are all relatively poor, bring constant to postorder assembling maintenance.In process, there is problem: the one, because the reamer that adopts equidistant cutter tooth to distribute, impure or run into the smear metal that adheres on the hole wall and make reamer produce periodic vibration because of the workpiece material in the fraising process, then on empty wall, produce vertical tool marks, influence the problem of machined surface roughness.Cause a large amount of processing works defective and scrap; The 2nd, cause reamer blade hot-spot easily, the wearing and tearing of aggravation cutter, thereby the service life of reducing cutter.In addition, also have existing cutter material multiselect to make with the ordinary rigid alloy, its tensile strength and yield strength all do not reach the high-speed cutting requirement, easy tipping, crackle, quick abrasion.So, use existing cutter process velocity slow, precision is low, and tool wear is fast, the production cost height.
Three, summary of the invention
Purpose of the present invention just is to provide a kind of high precision reamer, and the present invention can overcome the defective that exists in the above-mentioned prior art.
The technical solution used in the present invention is: a kind of high precision reamer, comprise cutter hub and handle of a knife, and it is characterized in that:, establish eight blades along circumferentially equidistantly not dashing forward at the peripheral part of cutter hub.Adopt not equidistant cutting edge, can both guarantee the intensity of each cutting edge, strengthened chip pocket again simultaneously, this structure makes blade steadily cut workpiece, and can guarantee that cutter is suitable for high-speed cutting processing, thereby has improved machining accuracy and efficient.Described eight blades are arranged at the peripheral part of cutter hub successively according to the phase difference of angle A=46 °, B=48 °, C=44 °, D=42 °, E=46 °, F=48 °, G=44 °, H=42 °.Be to strengthen chip pocket, the angle between each blade cutting edge is followed successively by a=83 °, b=85 °, c=81 °, d=78 °, e=83 °, f=85 °, g=81 °, h=78 °.Described blade adopts import ultra-micro alloy material.Described blade surface is adopted the physics coating to carry out coating and is handled.Described blade surface is a TiAlN coating.Ultra-fine grain carbide alloy combination can the improvement effectively cutting control and the surface roughness of coating, thus make cutter obtain high abrasion, excellent comprehensive performances such as low friction, heat endurance and non-oxidizability, the service life of improving cutter greatly.
Described blade is made of cutting portion and guiding tapering, and the cutting portion of blade is designed to the guiding pattern of 45 degree, 8 degree double angles.This can guarantee to reduce when cutter feeds friction, makes the cutter incision more steady; Column part can improve the surface accuracy of machining hole, can also play the guiding role when cutting simultaneously.
Described cutter hub adopts import H13 alloy material, and the tensile strength of cutter hub and yield strength are improved greatly.
In the prior art, this large aperture reamer is after using certain hour, because the blade wearing and tearing cause the aperture of reamer processing to diminish, can not satisfy processing request, makes that reamer can not continue to use, and can only discard.Because the reamer price is higher, thereby makes processing cost also higher.
As a further improvement on the present invention, described high precision reamer, also comprise tapering mandrel and cylindricality screw, the tapering mandrel has a trapezoidal hole, the cutter hub end offers bellmouth that excessively cooperates with described tapering mandrel and the cylindrical thread hole of matching with described cylindricality screw, the flat hole of one transition is arranged between bellmouth and cylindrical thread hole, and its aperture is slightly greater than the bellmouth bottom part aperture diameter, and the trapezoidal hole that the cylindricality screw passes the tapering mandrel is connected with the cylindrical thread hole.After reamer uses certain hour, when the reamer diameter being diminished, by adjusting the precession amount of cylindricality screw in the cylindrical thread hole owing to the blade wearing and tearing, promoting the tapering mandrel moves axially, the stressed expansion of cutter hub, the cutter hub diameter increases, and makes the size that reamer returns to be needed.This has just prolonged the service life of reamer widely, thereby reaches the purpose that cuts down finished cost.
The invention has the beneficial effects as follows: the present invention is owing to adopt import H13 alloy material under the prerequisite of tensile strength that has improved cutter hub greatly and yield strength, on cutter hub, be designed to eight not equidistant zigzag cutting edges, avoided in the fraising process impure or run into the smear metal that adheres on the hole wall and make reamer produce periodic vibration because of the workpiece material, both guaranteed the intensity of each cutting edge, strengthened chip pocket again, thereby guarantee that cutter is suitable for high-speed cutting processing, has improved machining accuracy and efficient.The cutting blade is designed to 45 degree, 8 spends the guiding pattern of double angles, make the cutter incision more steady, guarantee to reduce when cutter feeds friction; At cutting edge surface TiAlN coating, thereby make cutter obtain high abrasion, excellent comprehensive performances such as low friction, heat endurance and non-oxidizability.On structure of the cutter body, adopt tapering mandrel thrusting action principle, greatly improved the service life of cutter, thereby reached the purpose that cuts down finished cost.The result of use analysis is learnt: the hole of using the present invention's processing, tapering, cylindricity composition error are below 0.003mm, hole surface roughness value Ra0.32, be not more than 0.002mm with a collection of workpiece hole footpath variation, the tool life height, be tens of times of former use reamer, its price is about 2 times of common reamer.Use the present invention's processing to improve the production efficiency of postorder processing greatly, reduce labour intensity, shorten process time.Because accessory can be realized exchanging fully, the replacing of valve mating part when having made things convenient for maintenance.This type of reamer has fabulous promotional value in the processing of valve body.
Four, description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that the K of Fig. 1 is to view;
Fig. 3 is a tapering axle front view;
Fig. 4 is the partial enlarged drawing at I place among Fig. 1;
Fig. 5 is the structural representation of the embodiment of the invention.
The accompanying drawing sign
1 blade, 2 cutter hubs, 3 handle of a knifes, 4 tapering mandrels, 5 cylindricality screws
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Shown in Fig. 1-5, a kind of high precision reamer, comprise cutter hub 2 and handle of a knife 3, also comprise tapering mandrel 4 and cylindricality screw 5, steel handle of a knife 3 is for being suitable for being installed in the shank on the lathe rotary main shaft, cutter hub 2 adopts exceptional hardness material C P20 import alloy material (import H13 alloy material), cutter hub 2 is a cylindrical shape, cutter hub 2 has a transition cambered surface to handle of a knife 3 connecting portions, cutter hub 2 is seamlessly transitted, cutter hub 2 diameters are 47mm, the diameter of cutter head working size is 48.15 ± 0.005mm, on the outer peripheral face of cutter hub 2, along eight triangular grooves that circumferentially are not formed equidistantly the direction of relative axis parallel, side side at each triangular groove is welded with elongated blade 1, eight blades 1 are successively according to angle A=46 °, B=48 °, C=44 °, D=42 °, E=46 °, F=48 °, G=44 °, H=42 ° phase difference is arranged at the peripheral part of cutter hub 2, angle between each blade 1 cutting edge is followed successively by a=83 °, b=85 °, c=81 °, d=78 °, e=83 °, f=85 °, g=81 °, h=78 °, with a distolateral front end face that protrudes in head slightly separately, and the mode that the outside does not protrude in the cutter hub outer peripheral face slightly yet is provided with.Blade adopts import ultra-micro alloy material and adopts the physics coating to scribble TiAlN coating to its surface.Blade is made of cutting portion and guiding tapering, and the cutting portion of blade is designed to the guiding pattern of 45 degree, 8 degree double angles.Described tapering mandrel has a trapezoidal hole, the cutter hub end offers bellmouth that excessively cooperates with described tapering mandrel and the cylindrical thread hole of matching with described cylindricality screw, the flat hole of one transition is arranged between bellmouth and cylindrical thread hole, its aperture is slightly greater than the bellmouth bottom part aperture diameter, the trapezoidal hole that the cylindricality screw passes the tapering mandrel is connected with the cylindrical thread hole, described cylindricality screw end face offers interior hex slot, so that adjust the cylindricality screw with inner hexagon spanner.After reamer uses certain hour, when the reamer diameter being diminished, by adjusting the precession amount of cylindricality screw in the cylindrical thread hole owing to the blade wearing and tearing, promoting the tapering mandrel moves axially, the stressed expansion of cutter hub, the cutter hub diameter increases, and makes the size that reamer returns to be needed.
Claims (9)
1. high precision reamer, comprise cutter hub and handle of a knife, it is characterized in that: at the peripheral part of cutter hub, establish eight blades along circumferentially equidistantly prominent, eight blades are arranged at the peripheral part of cutter hub successively according to 46 ° of angles, 48 °, 44 °, 42 °, 46 °, 48 °, 44 °, 42 ° phase difference.
2. high precision reamer according to claim 1, it is characterized in that: the angle between described each blade cutting edge and 46 ° of eight blade angles, 48 °, 44 °, 42 °, 46 °, 48 °, 44 °, 42 ° are corresponding, are followed successively by 83 °, 85 °, 81 °, 78 °, 83 °, 85 °, 81 °, 78 °.
3. high precision reamer according to claim 2 is characterized in that: described blade adopts the ultra-micro alloy material.
4. high precision reamer according to claim 3 is characterized in that: described blade surface is adopted the physics coating to carry out coating and is handled.
5. high precision reamer according to claim 4 is characterized in that: described blade surface is the TiAlN coating.
6. high precision reamer according to claim 5 is characterized in that: the cutting portion of described reamer blade is designed to the guiding pattern of 45 degree, 8 degree double angles.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described high precision reamers, it is characterized in that: described cutter hub adopts the H13 alloy material.
8. according to claim 1 or 2 or 3 or 4 or 5 or 6 described high precision reamers, it is characterized in that: also comprise tapering mandrel and cylindricality screw, the tapering mandrel has a trapezoidal hole, the cutter hub end offers bellmouth that excessively cooperates with described tapering mandrel and the cylindrical thread hole of matching with described cylindricality screw, the flat hole of one transition is arranged between bellmouth and cylindrical thread hole, its aperture is slightly greater than the bellmouth bottom part aperture diameter, the trapezoidal hole that the cylindricality screw passes the tapering mandrel is connected with the cylindrical thread hole, after reamer uses certain hour, when the reamer diameter being diminished owing to the blade wearing and tearing, by adjusting the precession amount of cylindricality screw in the cylindrical thread hole, promoting the tapering mandrel moves axially, the stressed expansion of cutter hub, the cutter hub diameter increases, and makes the size that reamer returns to be needed.
9. high precision reamer according to claim 7, it is characterized in that: also comprise tapering mandrel and cylindricality screw, the tapering mandrel has a trapezoidal hole, the cutter hub end offers bellmouth that excessively cooperates with described tapering mandrel and the cylindrical thread hole of matching with described cylindricality screw, the flat hole of one transition is arranged between bellmouth and cylindrical thread hole, its aperture is slightly greater than the bellmouth bottom part aperture diameter, the trapezoidal hole that the cylindricality screw passes the tapering mandrel is connected with the cylindrical thread hole, after reamer uses certain hour, when the reamer diameter being diminished owing to the blade wearing and tearing, by adjusting the precession amount of cylindricality screw in the cylindrical thread hole, promoting the tapering mandrel moves axially, the stressed expansion of cutter hub, the cutter hub diameter increases, and makes the size that reamer returns to be needed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100108481A CN101502897B (en) | 2009-03-22 | 2009-03-22 | High precision reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100108481A CN101502897B (en) | 2009-03-22 | 2009-03-22 | High precision reamer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502897A CN101502897A (en) | 2009-08-12 |
| CN101502897B true CN101502897B (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100108481A Active CN101502897B (en) | 2009-03-22 | 2009-03-22 | High precision reamer |
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| CN (1) | CN101502897B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128373B (en) * | 2011-11-30 | 2015-09-30 | 深圳市中天超硬工具股份有限公司 | For processing the Polycrystalline diamond reamer in the discrete hole of hole wall |
| CN103658862A (en) * | 2012-09-01 | 2014-03-26 | 江苏诚天机械有限公司 | Reamer |
| DE102012222574B4 (en) * | 2012-12-07 | 2014-08-07 | Kennametal Inc. | Concentric tool, in particular a reaming tool and adjusting element for a concentricity tool |
| CN104096914B (en) * | 2013-04-08 | 2016-08-03 | 沈阳透平机械股份有限公司 | Universal adjustment coarse-fine processing one adjustable floating reamer |
| CN103878441A (en) * | 2014-03-05 | 2014-06-25 | 郑州市钻石精密制造有限公司 | Hole shrinkage prevention reamer |
| CN104308243A (en) * | 2014-10-29 | 2015-01-28 | 苏州华冲精密机械有限公司 | Conveniently-dismounted type channeling cutter device |
| CN104785798A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Main shaft structure of numerically-controlled machine tool |
| CN104785864A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Machining mechanism of numerical control machine tool |
| CN104785806A (en) * | 2015-04-20 | 2015-07-22 | 中山市利群精密实业有限公司 | Tool bar structure of numerical control machine tool |
| CN104858629A (en) * | 2015-04-27 | 2015-08-26 | 南京信达克工具科技发展有限公司 | Processing method of high-speed precise hard alloy reamer |
| CN105458404B (en) * | 2015-12-08 | 2018-01-23 | 太仓瑞鼎精密机械科技有限公司 | A kind of adjustable welding reamer of quick-replaceable |
-
2009
- 2009-03-22 CN CN2009100108481A patent/CN101502897B/en active Active
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| CN101502897A (en) | 2009-08-12 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190430 Address after: 116620 No. 192 Haiming Road, Shilibao Street, Dalian Free Trade Zone, Liaoning Province Patentee after: BOAO PRECISION INDUSTRIAL (DALIAN) Co.,Ltd. Address before: 116620 No. 1, Zone D, Songlancun Industrial Park, Wanli Street, Dalian Development Zone, Liaoning Province Patentee before: DALIAN DEVELOPMENT ZONE YIDA TOOL CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: High precision reamer Effective date of registration: 20231205 Granted publication date: 20110119 Pledgee: China Merchants Bank Co.,Ltd. Dalian Branch Pledgor: BOAO PRECISION INDUSTRIAL (DALIAN) Co.,Ltd. Registration number: Y2023210000332 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |