CN108942716A - A kind of aperture knife tool for fibre reinforced composites - Google Patents
A kind of aperture knife tool for fibre reinforced composites Download PDFInfo
- Publication number
- CN108942716A CN108942716A CN201810608425.9A CN201810608425A CN108942716A CN 108942716 A CN108942716 A CN 108942716A CN 201810608425 A CN201810608425 A CN 201810608425A CN 108942716 A CN108942716 A CN 108942716A
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- sword
- grinding sword
- grinding
- outside
- particle size
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of aperture knife tools for fibre reinforced composites, belong to Tool Design and applied technical field, including milled portion, optical centering part and tool matrix；Milled portion successively includes outside grinding sword, cross grinding sword, inside grinding sword from outside to interior survey；The abrasive grain ordered arrangement of milled portion, the Abrasive Particle Size that outside is ground sword are less than the Abrasive Particle Size of cross grinding sword and inside grinding sword；The grinding sword that abrasive grain ordered arrangement is constituted, improves cutter life.And outside grinding sword Abrasive Particle Size is less than the Abrasive Particle Size of end face and inside grinding sword, improves hole wall grinding quality；It is ground the design of sword helical angle, improves cutter chip removal ability and processing quality.Optical centering device of the present invention is reusable, detachable, avoids traditional jacking drill tools cutter as caused by pilot drill abrasion and is lost, further improves cutter life, reduce production cost, improve machining accuracy and efficiency.
Description
Technical field
The invention belongs to Tool Designs and applied technical field, in particular to a kind of hole for fibre reinforced composites
Process tool.
Background technique
Fibre reinforced composites are advanced composite materials, with specific strength is high, specific modulus is big, good dimensionally stable
Property, good corrosion resistance and the plurality of advantages such as fatigue durability, the coefficient of heat conduction be low, are widely used in aerospace, biology
In medical treatment, communications and transportation and sport and military articles.
With fibre reinforced composites in every profession and trade using increasing, efficiently, Precision Machining also becomes further
It is important.Fibre reinforced composites need to be machined after shaping to meet assembly need in actual engineer application
It asks, but due to fibre strength height, hardness is big, and material is integrally in Anisotropy, causes its machine-sensible conditions more severe,
It is typical difficult-to-machine material.Under normal circumstances, layering, tearing, hair are primarily present in fibre reinforced composites hole machined
Thorn and other issues and the low problem of tool life.
Existing fibre reinforced composites aperture knife tool is mainly carbide drill or plating cylindrical drill, cutter mill
Damage is fast, at high cost, low efficiency；The component of carbide drill in the axial direction is easy to cause fibre reinforced composites to be layered
The phenomenon that, to be difficult to meet the high-quality and efficient processing request of composite material.Cylindrical drill is electroplated and reduces material removal volume, it can
Reduce axial force, inhibit lamination defect, improves processing quality.But it is easy to fall off since its electroplating technology abrasive grain bond strength is low, and
Abrasive grain proud exposure is low, and chip space is small, often results in cylindrical drill blocking, workpiece burn.In addition, compound cylindrical drill for example loses the heart
It bores, contact centering failure easy to wear further limits cutter life.Therefore it needs to invent one kind to be suitable for processing fiber
Enhance the cutter of composite material.
Summary of the invention
The present invention aiming at the problems existing in the prior art, discloses a kind of hole machined for fibre reinforced composites
Cutter, by abrasive grain ordered arrangement, chip space increases, and is ground the design of sword helical angle, improves cutter chip removal ability, improves
Processing quality；The use of small particle abrasive grain improves cutter contour on the outside of cutter, further increases hole wall processing quality.This hair
The appearance and promotion tool life of bright effective the defects of inhibiting the layering of carbon fibre composite hole machined, tearing and burr, and
Abrasive material bond strength of the invention is high, solves problems of the prior art.
The present invention is implemented as follows:
A kind of aperture knife tool for fibre reinforced composites, the cutter successively include milled portion from top to bottom,
Optical centering part and tool matrix, and three parts are in turn connected to form cutter of the invention.Wherein, tool grinding part from
Outside successively includes that outside is ground sword, cross grinding sword, inside grinding sword to interior survey；The abrasive grain ordered arrangement of milled portion, mill
Cut sharpening grain successively arrange all in accordance with 45 ° ~ 60 ° of helical angle, outside be ground sword Abrasive Particle Size be less than cross grinding sword with it is interior
The Abrasive Particle Size of side grinding sword；Being ground sword helical angle is 45 ° ~ 60 °, and outside is ground the week of sword, cross grinding sword, inside grinding sword
To arrangement spacing t between 1.2mm ~ 3.6mm.The ordered arrangement of abrasive material improves the chip removal ability of cutter, reduces grinding area temperature
Degree reduces manufacturing deficiency, improves composite processing surface integrity；The grinding sword that the ordered arrangement of abrasive grain is constituted replaces tradition
Cutting edge improves cutter life.In addition, outside grinding sword Abrasive Particle Size is less than the Abrasive Particle Size of end face and inside grinding sword,
Hole wall grinding quality is improved, can be avoided the layering, tearing, burr and other issues occurred in process.
Further, the Abrasive Particle Size of outside grinding sword is less than 150 μm, the Abrasive Particle Size of cross grinding sword and inside grinding sword
Greater than 400 μm, and cross grinding sword is equal with the inside grinding Abrasive Particle Size of sword.
Further, each grinding sword of milled portion, i.e. outside grinding sword, cross grinding sword, inside grinding sharpening grain are solid
Knot mode is all made of vacuum high-temperature soldering processes, and abrasive material is diamond, solder AgCuTi.What the super hard abrasive of diamond was formed
It is ground sword and realizes consolidation using vacuum high-temperature soldering processes and tool matrix.
Further, optical centering part includes wall cylinder, inside wall cylinder from bottom to top successively include control switch, light source,
And convex lens.
Further, optical centering part is detachable structure；Wall drum outer wall is provided with external screw thread, passes through external screw thread and cutter
Matrix connection.It is connected on tool matrix by wall cylinder external screw thread, after screw thread is tightened, control switch closure, light source, which is powered, to be projected
Light by wall cylinder inner wall, can approximation be seen as directional light, the convex lens through wall cylinder end face focuses on outside cutter on axis a bit,
Realize optical centering.
Further, the draw ratio of wall cylinder is greater than 5, and wall cylinder inner wall is covered with black light-absorbing coating, and inner wall uses the painting of black
Layer can will deviate from the light of wall cylinder axis to sponging, guarantee that the light projected is similar to directional light.
The beneficial effect of the present invention and the prior art is:
1) present invention replaces conventional ramping edge by the grinding sword for constituting abrasive grain ordered arrangement, improves cutter life.And it is outer
Side is ground the Abrasive Particle Size that sword Abrasive Particle Size is less than end face and inside grinding sword, improves hole wall grinding quality；Grinding of the invention
The design of sword helical angle improves cutter chip removal ability and processing quality；The use of grinding sword small particle abrasive grain mentions on the outside of cutter
High cutter contour, can be further improved hole wall processing quality.
2) optical centering device is set as detachable structure, is threadedly attached on tool matrix.By that will shine two
The light that pole pipe issues is filtered into less parallel light, then has the convex lens of fixed focal length to focus on the outer axis of cutter a bit,
Realize the non-contact optical centering of cutter.Its structure is simple, cheap, and reusable, avoids traditional cylindrical drill
Cutter caused by tool is worn as pilot drill is lost, and further improves cutter life, reduces production cost, improves processing essence
Degree and efficiency.
3) the grinding sword of milled portion of the invention uses vacuum high-temperature soldering processes, and abrasive material is diamond order arrangement,
The chip removal ability of cutter can be improved, reduce grinding area temperature, reduce manufacturing deficiency, it is complete to improve composite processing surface
Property；Milled portion super hard abrasive holding intensity is big, and proud exposure is big, and abrasive grain is not easily to fall off, greatly improves tool life.
Detailed description of the invention
Structural schematic diagram of Fig. 1 present invention for the aperture knife tool of fibre reinforced composites；
Aperture knife tool of Fig. 2 present invention for fibre reinforced composites is ground sword expanded view；
Fig. 3 present invention is used for the aperture knife tool centering portion structural schematic diagram of fibre reinforced composites；
Wherein, 1- milled portion, 2- optical centering part, 3- tool matrix, the inside 1.1- grinding sword, 1.2- cross grinding sword,
Sword, 2.1- wall cylinder, 2.2- light source, 2.3- control switch, 2.4- convex lens are ground on the outside of 1.3-.
Specific embodiment
It is clear to keep the purpose of the present invention, technical solution and effect clearer, referring to the drawings and give an actual example to this
Invention is further described.It should be understood that specific implementation described herein is not used to limit only to explain the present invention
The present invention.
As shown in Figure 1, a kind of aperture knife tool for fibre reinforced composites, including milled portion 1, optical centering
Part 2 and tool matrix 3.It is outside grinding sword 1.3 that milled portion ultrahard diamond abrasive material is formed, cross grinding sword 1.2, interior
Side grinding sword 1.1 is all made of vacuum high-temperature soldering processes and tool matrix is realized and consolidated, grinding material sequential arraying.Vacuum high-temperature soldering
The chip removal ability of cutter can be improved in the abrasive material of technique and diamond, reduces grinding area temperature, reduces manufacturing deficiency, improves
Composite processing surface integrity；Milled portion super hard abrasive holding intensity is big, and proud exposure is big, and abrasive grain is not easily to fall off, pole
Tool life is improved greatly.
Tool grinding part 1, i.e., outside grinding sword 1.3, cross grinding sword 1.2, inside grinding sword 1.1 abrasive grain orderly arrange
The grinding sword helical angle design that cloth is formed is 45 °, and being circumferentially arranged spacing t is 2.4mm.Solder is AgCuTi.
As shown in Fig. 2, Fig. 2 is tool grinding sword expanded view, milled portion 1 successively includes that outside is ground from outside to interior survey
Sword 1.3, cross grinding sword 1.2, inside are ground sword 1.1, and outside is ground the Abrasive Particle Size of sword 1.3 less than 150 μm；Cross grinding sword
1.2 Abrasive Particle Sizes for being ground sword 1.1 with inside are greater than 400 μm.Abrasive grain ordered arrangement, the Abrasive Particle Size that outside is ground sword 1.3 are small
In the Abrasive Particle Size of cross grinding sword 1.2 and inside grinding sword 1.1, the abrasive grain of cross grinding sword 1.2 and inside grinding sword 1.1
Particle size is consistent.
As shown in figure 3, optical centering part 2 includes wall cylinder 2.1, light source 2.2, control switch 2.3, convex lens 2.4.It sets
It is calculated as detachable structure, is connected on tool matrix 3 by wall cylinder 2.1 by external screw thread.After light source 2.2 is powered, the light of injection
Line is 5 by draw ratio, and is covered with the inner tube wall of brown japanning, can approximation be seen as directional light, have the convex lens of sleeve end face poly-
Coke in outside cutter on axis a bit, realize optical centering.
Optical centering device is set as detachable structure, is threadedly attached on tool matrix.By by light-emitting diodes
The light that pipe issues is filtered into less parallel light, then has the convex lens of fixed focal length to focus on the outer axis of cutter a bit, real
The non-contact optical centering of existing cutter.Its structure is simple, cheap, and reusable, avoids traditional jacking driller
Tool cutter as caused by pilot drill abrasion is lost.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement, such as 1 can also be made: outside is ground sword, end face
The Abrasive Particle Size that grinding sword, inside are ground sword makes a change, it is made to meet the Abrasive Particle Size of outside grinding sword less than 150 μm；End
Face is ground sword and the Abrasive Particle Size of inside grinding sword is greater than 400 μm；2: each grinding sword helical angle is arranged between 45 ° ~ 60 °；
3: each grinding sword is circumferentially arranged spacing t and is set as waiting effective replacement of numerical value to change between 1.2mm ~ 3.6mm, these improvement
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of aperture knife tool for fibre reinforced composites, which is characterized in that the cutter includes milled portion
(1), milled portion (1) is connected with downwards optical centering part (2) and tool matrix (3) in turn；Milled portion (1) is from outside
It successively include outside grinding sword (1.3), cross grinding sword (1.2), inside grinding sword (1.1) to interior survey；The mill of milled portion (1)
Grain ordered arrangement, the Abrasive Particle Size that outside is ground sword (1.3) are less than the mill of cross grinding sword (1.2) and inside grinding sword (1.1)
Grain partial size；Each grinding sword helical angle is 45 ° ~ 60 °, and each grinding sword is circumferentially arranged spacing t between 1.2mm ~ 3.6mm.
2. a kind of aperture knife tool for fibre reinforced composites according to claim 1, which is characterized in that outside
The Abrasive Particle Size of sword (1.3) is ground less than 150 μm；Cross grinding sword (1.2) and the Abrasive Particle Size of inside grinding sword (1.1) are greater than
400 μm, and cross grinding sword (1.2) is equal with the inside grinding Abrasive Particle Size of sword (1.1).
3. a kind of aperture knife tool for fibre reinforced composites according to claim 1 or 2, which is characterized in that
Outside grinding sword (1.3) of milled portion (1), cross grinding sword (1.2), inside grinding sword (1.1) abrasive grain consolidation style are adopted
With vacuum high-temperature soldering processes, abrasive material is diamond, solder AgCuTi.
4. a kind of aperture knife tool for fibre reinforced composites according to claim 1, which is characterized in that optics
Centering portion (2) includes wall cylinder (2.1), and internal in wall cylinder (2.1) successively includes control switch (2.3), light source from bottom to top
(2.2) and convex lens (2.4).
5. a kind of aperture knife tool for fibre reinforced composites according to claim 4, which is characterized in that optics
Centering portion (2) is detachable structure；Wall cylinder (2.1) outer wall is provided with external screw thread, is connected by external screw thread and tool matrix (3)
It connects.
6. a kind of aperture knife tool for fibre reinforced composites according to claim 4 or 5, which is characterized in that
The draw ratio of wall cylinder (2.1) is greater than 5, and wall cylinder (2.1) inner wall is covered with black light-absorbing coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608425.9A CN108942716B (en) | 2018-06-13 | 2018-06-13 | Hole machining tool for fiber reinforced composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608425.9A CN108942716B (en) | 2018-06-13 | 2018-06-13 | Hole machining tool for fiber reinforced composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108942716A true CN108942716A (en) | 2018-12-07 |
| CN108942716B CN108942716B (en) | 2020-08-07 |
Family
ID=64488432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810608425.9A Active CN108942716B (en) | 2018-06-13 | 2018-06-13 | Hole machining tool for fiber reinforced composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108942716B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198641A (en) * | 2011-05-12 | 2011-09-28 | 沈阳理工大学 | Super-hard abrasive grinding wheel with head face having abrasives in phyllotaxis arrangement and production method thereof |
| CN203239319U (en) * | 2013-03-29 | 2013-10-16 | 中国石油天然气集团公司 | Mandrel used for induction logging instrument |
| CN103639504A (en) * | 2013-11-25 | 2014-03-19 | 南京航空航天大学 | Compression type milling and grinding cutter used for composite material processing |
| CN104972148A (en) * | 2015-06-24 | 2015-10-14 | 中国科学院西安光学精密机械研究所 | Cylindrical Mirror Optical Axis Fixing System and Method |
| CN205415808U (en) * | 2016-03-16 | 2016-08-03 | 苏州久晶光电科技有限公司 | Interior circle cutting dress sword line -up clamp |
| CN205414508U (en) * | 2015-12-15 | 2016-08-03 | 中国民航大学 | Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond |
| CN206242169U (en) * | 2016-10-14 | 2017-06-13 | 成都飞机工业（集团）有限责任公司 | A kind of cutter for milling fibre reinforced composites |
| CN106903350A (en) * | 2017-04-24 | 2017-06-30 | 大连理工大学 | The sharp interchangeable cylindrical drill of sword twin-stage of fibre reinforced composites drilling |
| DE202017105116U1 (en) * | 2017-08-25 | 2017-10-24 | Gerhard Grimme | Milling disc, especially for hoof work |
| CN107378009A (en) * | 2017-08-01 | 2017-11-24 | 大连理工大学 | A kind of micro- serrated knife tool of multi-ladder multiple-cutting-edge gradual change for carbon fibre composite drilling |
| CN107378012A (en) * | 2017-07-25 | 2017-11-24 | 吉林工程技术师范学院 | A kind of machining tool |
-
2018
- 2018-06-13 CN CN201810608425.9A patent/CN108942716B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198641A (en) * | 2011-05-12 | 2011-09-28 | 沈阳理工大学 | Super-hard abrasive grinding wheel with head face having abrasives in phyllotaxis arrangement and production method thereof |
| CN203239319U (en) * | 2013-03-29 | 2013-10-16 | 中国石油天然气集团公司 | Mandrel used for induction logging instrument |
| CN103639504A (en) * | 2013-11-25 | 2014-03-19 | 南京航空航天大学 | Compression type milling and grinding cutter used for composite material processing |
| CN104972148A (en) * | 2015-06-24 | 2015-10-14 | 中国科学院西安光学精密机械研究所 | Cylindrical Mirror Optical Axis Fixing System and Method |
| CN205414508U (en) * | 2015-12-15 | 2016-08-03 | 中国民航大学 | Fibre reinforced composite makes spot facing cutter based on electrodeposited diamond |
| CN205415808U (en) * | 2016-03-16 | 2016-08-03 | 苏州久晶光电科技有限公司 | Interior circle cutting dress sword line -up clamp |
| CN206242169U (en) * | 2016-10-14 | 2017-06-13 | 成都飞机工业（集团）有限责任公司 | A kind of cutter for milling fibre reinforced composites |
| CN106903350A (en) * | 2017-04-24 | 2017-06-30 | 大连理工大学 | The sharp interchangeable cylindrical drill of sword twin-stage of fibre reinforced composites drilling |
| CN107378012A (en) * | 2017-07-25 | 2017-11-24 | 吉林工程技术师范学院 | A kind of machining tool |
| CN107378009A (en) * | 2017-08-01 | 2017-11-24 | 大连理工大学 | A kind of micro- serrated knife tool of multi-ladder multiple-cutting-edge gradual change for carbon fibre composite drilling |
| DE202017105116U1 (en) * | 2017-08-25 | 2017-10-24 | Gerhard Grimme | Milling disc, especially for hoof work |
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| Publication number | Publication date |
|---|---|
| CN108942716B (en) | 2020-08-07 |
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Effective date of registration: 20200915 Address after: Yudaojie Qinhuai District of Nanjing City, Jiangsu Province, No. 29 210016 Co-patentee after: NANJING CHENGUANG GROUP Co.,Ltd. Patentee after: Nanjing University of Aeronautics and Astronautics Address before: Yudaojie Qinhuai District of Nanjing City, Jiangsu Province, No. 29 210016 Patentee before: Nanjing University of Aeronautics and Astronautics |
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