CN108637382A - The process tool and processing method of a kind of low damage of the big entrance angle of cellular material - Google Patents
The process tool and processing method of a kind of low damage of the big entrance angle of cellular material Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/003—Sawing machines or sawing devices with circular saw blades or with friction saw discs for particular purposes
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Abstract
The invention discloses the process tool and processing method of a kind of low damage of the big entrance angle of cellular material, the process tool includes serrated knife disk and knife bar component, and the cutter tooth of cutterhead with teeth has main cutting edge, end cutting edge and side edge.The present invention uses disc-shaped cutting tool machining cellular material, the position relationship of cutter and workpiece cell is determined according to theoretical calculation, make in process to cut angular region at single layer hole wall as close possible to 165 ° of 90 °≤θ ＜, effectively reduce surface spikes, and utilize the process tool with positive cutting edge inclination, make to move in point of penetration position, Defect expanding avoided to form hole wall tearing, realize cellular material type face, chamfering, trimming low damage processing.The process tool of the present invention can effectively cut off the complicated hole wall structure of Low rigidity in cellular material face, reduce surface spikes；In addition, main cutting edge cutting edge inclination is conducive to move in point of penetration position, Defect expanding is avoided to form longer hole wall tearing.
Description
Technical field
The invention belongs to cellular material field of machining, more particularly, to a kind of low damage of the big entrance angle of cellular material
Process tool and processing method.
Background technology
Cellular material is used frequently as the sandwich material sandwich component that is formed by curing Nian Jie with metal or composite material skin, because
It has many advantages, such as high-strength light, insulated heat, fire-retardant absorbing, is used widely in fields such as auto industry, aerospaces,
If straight -9 helicopter honeycomb interlayer components are a up to more than 280,85% area of the military bomber internal structure of B-58 high speeds uses
Honeycomb is also utilized in honeycomb core material, the components such as wing flap, radome fairing and the hatch door of C919 Large Civil Aircrafts in a large proportion
Sandwich material.
With the expansion that cellular material is applied, process requirements are also more and more, such as drilling, trimming and Machining of Curved Surface.
But it is limited to the design feature of Low rigidity in face and the poor machinability of basis material, workpiece surface frequently occurs hair
The manufacturing deficiencies such as thorn, tearing, and then seriously affect performance and the service life of honeycomb interlayer component, constrain the development of cellular material with
Using.Currently, being influenced by metal cutting theory, also mostly considers from macroscopic perspective for the machining of cellular material, cause
The quality problems of cellular material machining are difficult to solve, and only start with from cellular material microscopical structure, could disclose honeycomb
The processing mechanism of material, and then realize the low damage processing of cellular material.
In existing literature data and patent retrieval, the research for the low damage processing method of cellular material is not yet found,
And in terms of the research of cellular material cutter is concentrated mainly on chip removal and heat dissipation, lack the corresponding research of low damage process tool.In
Xi'an aircraft branch company of boat aircraft limited liability company develops a kind of method (104001973 A of CN) of honeycomb core processing,
Essence is using polyethylene glycol filled honeycomb cell to realize that preferable processing quality, the method enhance by changing holding method
Material stiffness is not easy to remove and may influence material property after being processed due to filler, has certain use limitation.This
Outside, a kind of metal beehive workpiece ice fixing processing method (105171460 A of CN) of Dalian University of Technology's exploitation and Shanghai are handed over
A kind of refrigeration clamping device and method (105737433 A of CN) for comb core material processing of logical university's exploitation, will fill
Object has changed ice into, and again by holding method reinforcing material rigidity is changed, confinement problems are used there are identical.Prosperous river aircraft
Industrial (group) Co., Ltd develops a kind of Paper Honeycomb Parts numerical-control processing method (104668925 A of CN), mainly
Orientation problem and whole trajectory planning problem are processed for honeycomb parts positive and negative, not to carefully seeing cutting process and surface quality
Relationship is considered and is controlled.Harbin Aircraft Industry Group Co., Ltd develops a kind of cellular milling tool (CN
202137435 U), solve the problems, such as the chip removal of honeycomb process.Chengdu Airplane Industry (Group) Corp., Ltd. develops
A kind of combined type cell-specific milling cutter (103203492 A of CN) mainly solves cutter block two up and down in honeycomb processing
Divide connection insecure problem.Shenyang Xizi, a famous beauty in the late Spring and Autumn Period's Aerobiz Co., Ltd develops a kind of honeycomb processing knife with refrigerating function
Have (204221865 U of CN), using the method for opening inclined hole on cutter hub, is rotated by cutter and realize air blowing or inspiratory phenomenon, purport
Accelerating heat dissipation or chip removal.Therefore, how to realize that the low damage processing of cellular material is still enterprise's problem urgently to be resolved hurrily.
Invention content
It still cannot achieve the present situation of the low damage processing of cellular material for the prior art, the present invention will propose a kind of honeycomb material
Expect the process tool and processing method of the low damage of big entrance angle.
The technical thought of the present invention is as follows：
Cellular material is periodical porous structure material.Wherein, the opposite both sides of each cell are connected shape with other cells
At the double-deck hole wall, remaining four side is single layer hole wall, and single layer hole wall rigidity is relatively low, the defect generated in cutting process
Most serious.The structural parameters of cellular material include hole wall cornerThe double-deck hole wall length a, single layer hole wall length b and single layer hole
Wall thickness t, the layer materials such as generally use metal foil or aramid paper are made.
In cellular material process, entrance angle θ influences significantly processing quality, and test result shows entrance angle at 90 °
When 165 ° of≤θ ＜, hole wall cut surface processing quality is good.Entrance angle θ finger-hole wall vector nshWith cutting speed vcAngle, and hole
Wall vector nhRefer to the vector for being directed toward undressed region along hole wall direction from cut-out end in honeycomb cell face.By controlling entrance angle
θ, it is ensured that entrance angle can improve cutting edge cutting state within the scope of 165 ° of 90 °≤θ ＜ at single layer hole wall, to effectively carry
The processing quality of high hole wall cut surface, realization type face, chamfering, the low damage processing of trimming.
In cellular material machining, to realize that entrance angle is within the scope of 165 ° of 90 °≤θ ＜ at single layer hole wall, choose
Point of a knife is calculating position with hole wall contact point, and since cutter rotating speed is high, calculating position is equivalent to cutter in cutting process and participates in
The circular arc of cutting and the intersection point of hole wall.It determines that workpiece direction of feed is parallel with the double-deck hole wall first, is cut at arbitrary calculating position
Angle θ calculates as follows：
In formula, e is the relative position parameter of workpiece cell and cutter, i.e. the cutter centre of gyration to wanted machining surplus
The distance of nearest cell node in region (along vertical feed direction)；Y is calculating position parameter, i.e. calculating position to cutter is turned round
The distance (along vertical feed direction) at center.
The cutting speed v of calculating position is determined according to tool geometrical parameterc=(vx, vy)：
In formula, R is the outer diameter of cutterhead with teeth.
According to above-mentioned result of calculation, entrance angle at calculating position can be calculated：
Secondly, under conditions of workpiece direction of feed is opposite along the component velocity direction of direction of feed with cutting speed, can lead to
Toning whole timber material structural parametersThe relative position parameter of tool geometrical parameter (R) and workpiece cell and cutter
(e) so that entrance angle is within the scope of 165 ° of 90 °≤θ ＜.
It is by geometrical analysis it is found that opposite along the component velocity direction of direction of feed with cutting speed in workpiece direction of feed
Under the conditions of, entrance angle θ reduces as y increases at single layer hole wall.However, in cellular material there are two types of angle single layer hole wall,
A kind of and tool feeding angular separation μ≤90 °, another 90 ° of tool feeding angular separation μ ＞, hole wall vector nhCan μ≤
Change when at 90 ° of single layer hole wall with knife tangent, transformation boundary y=Rcos μ.Therefore cutter can be divided into the areas Liang Ge
Domain, y ∈ (R, Rcos μ) are region a1, y ∈ (Rcos μ, 0) are region a2.Due to that can occur at transformation boundary y=Rcos μ
The transformation that 180 ° to 0 ° of entrance angle, therefore select a1For cutting zone, a2For non-cutting region.
The present invention is as follows according to the technical solution that above-mentioned technical thought proposes：
A kind of process tool of the low damage of the big entrance angle of cellular material, includes serrated knife disk and knife bar component, the knife bar
Component includes briquetting, knife bar and screw；The cutterhead with teeth is coordinated with knife bar by the circular conical surface that angle is 6, is made using screw
Briquetting compresses cutterhead with teeth, to ensure that cutterhead with teeth and knife bar are coaxial.
The cutterhead with teeth is evenly distributed in 20~40 cutters tooth, gullet depth h1=5~10mm.Cutterhead bottom surface with teeth
Be arranged depth be 0.2mm interior concave plane, interior concave plane be circular flat and with cutterhead planar coaxial with teeth, indent horizontal edge
The distance h at tooth root2=5~10mm；Cutterhead upper surface with teeth has round boss, and round boss and cutterhead with teeth are coaxial, convex
Platform front circle centre position is 10 through-holes of φ, and through-hole edge is the circular conical surface with angle δ, and circular conical surface is as knife bar positioning surface, boss
Side is arc surface, and arc surface is connect with cutterhead upper surface with teeth by intermediate incline, and boss bottom surface is taper type depth chamber.
There are three cutting edges, i.e. main cutting edge, end cutting edge and side edge for the cutter tooth tool of the cutterhead with teeth；The main cutting
Angle of cutting edge γ1=30~45 °, cutting edge inclination λs=15~30 °；End cutting edge anterior angle γ2=75~82 °, blade be arc length s=1~
The circular arc of 2mm；Side edge is main cutting edge anterior angle γ1With end cutting edge anterior angle γ2The cutting edge generated naturally after sharpening.
Further, 6=15 ° of the angle of the circular conical surface~30 °；
A kind of processing method of the low damage of the big entrance angle of cellular material, includes the following steps：
A, make workpiece direction of feed parallel with the double-deck hole wall, choose the region that cutter tooth is in contact with workpiece in cutting process
a1For cutting zone, maximum cutting width a is calculated according to formula (4)w, i.e. region a1The width of vertical workpiece direction of feed.
In formula, R is the outer diameter of cutterhead with teeth,For hole wall corner.
B, traverse furrow slot and longitudinal furrow slot are cut out in allowance region using cutting sheet or slotting cutter, material between adjacent longitudinal furrow slot
For the allowance of one-pass, the depth of traverse furrow slot and longitudinal furrow slot is less than the 0.1~0.2mm of thickness in allowance region；It is vertical
Trench spacing is than maximum cutting width awFew 2~3mm, traverse furrow separation are 1-1.5 times of R.
C, by Cutting tool installation manner on the main shaft of High-speed NC Machining lathe, workpiece is fixed on the table, and cutter is made to turn round
Center is i.e. fewer 1.5~2mm than the outer diameter R of cutterhead with teeth along the distance of vertical workpiece direction of feed to nearest longitudinal furrow slot distance, opens
Dynamic High-speed NC Machining lathe, main shaft rotation；Complete one-pass cutting.
D, using the effect of traverse furrow slot and longitudinal furrow slot, so that one-pass is cut the chip to be formed and fall off in time, avoid chip
Wind knife bar.
If E, work pieces process surplus region cutting finishes, F is gone to step；Otherwise return to step C redefines cutter and work
The mutual alignment of part starts the cutting of feed next time.
F, after the cutting of work pieces process surplus region, main shaft stalling is removed workpiece and is detected.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present invention uses disc-shaped cutting tool machining cellular material, the allowance of feed to be each time in knife bar
Side determines the position relationship of cutter and workpiece cell according to theoretical calculation, makes in process entrance angle model at single layer hole wall
It encloses as close possible to 165 ° of 90 °≤θ ＜, effectively reduces surface spikes, and utilize the big incision of cellular material with positive cutting edge inclination
The low damage process tool in angle makes to move in point of penetration position, avoids Defect expanding from forming hole wall and tears, realization cellular material type face,
Chamfering, trimming low damage processing.
2, the low damage process tool of the big entrance angle of cellular material proposed by the present invention has 20~40 cutters tooth, each cutter tooth
There are three cutting edges, i.e. main cutting edge, end cutting edge and side edge for tool, can effectively cut off the complicated hole of Low rigidity in cellular material face
Wall construction reduces surface spikes；In addition, main cutting edge cutting edge inclination is conducive to move in point of penetration position, Defect expanding is avoided to be formed
Longer hole wall tearing.
3, the low damage process tool gullet depth h of the big entrance angle of cellular material proposed by the present invention1=5~10mm, due to
Cellular material is periodical porous structure, and deep tooth slot structure makes air that can be efficiently entering cutting region, and chip happy can also be discharged, have
Effect reduces cutting temperature (declining 40% compared to anodontia cutting disc).
4, after the cutter tooth of the low damage process tool of the big entrance angle of cellular material proposed by the present invention is worn, due to existing
1~2mm end cutting edge arc length, point of a knife circumferentially move afterwards, and the nominal dimension of cutterhead with teeth will not reduce, and may continue to use, carry
The high service life of cutterhead with teeth.
5, the interior concave plane on the downside of cutterhead with teeth of the invention can reduce cutterhead with teeth and be contacted with non-processing between workpiece, subtract
Few friction, reduces cutting temperature.
6, cutterhead boss with teeth bottom surface of the invention is taper type depth chamber, is less than cutterhead bottom surface with teeth after so that screw is installed,
It avoids interference with.
Description of the drawings
Fig. 1 is the low damage processing method process schematic of the big entrance angle of cellular material.
Fig. 2 is the low damage processing method relevant parameter schematic diagram of the big entrance angle of cellular material.
Fig. 3 is that the low damage processing method cutting zone of the big entrance angle of cellular material divides schematic diagram.
Fig. 4 is the low damage process tool structural schematic diagram of the big entrance angle of cellular material.
Fig. 5 is cutterhead cutter tooth angle schematic diagram with teeth.
Fig. 6 is the A-A sectional views of Fig. 5.
Fig. 7 is the B-B sectional views of Fig. 5.
Fig. 8 is cutterhead vertical view with teeth.
Fig. 9 is the P-P sectional views of Fig. 8.
Figure 10 is the upward view of Fig. 8.
In figure：1, cutter, 2, workpiece, 11, cutterhead with teeth, 12, briquetting, 13, knife bar, 14, screw, 21, single layer hole wall,
22, the double-deck hole wall, 23, cell node, 24, longitudinal furrow slot, 25, traverse furrow slot, 112, cutter tooth, 113, intermediate incline, 114, boss,
115, knife bar positioning surface, 116, taper type depth chamber, 117, interior concave plane, 1121, main cutting edge, 1122, side edge, 1123, pair cuts
Cut sword.
Specific implementation mode
The present invention is further described through below in conjunction with the accompanying drawings.
As shown in Figure 1, the big entrance angle low processing for damaging processing method when being the processing of cellular material large-area planar at this time
Process.Sword is smashed since cutter 1 is not integrated, longitudinal furrow slot 24 and traverse furrow slot 25 must be provided on the allowance region of workpiece 2, with reality
Chip breaking in existing cutting process, groove distance are chosen according to corresponding calculate.
As shown in Fig. 2, entrance angle θ influences significantly processing quality in cellular material processing, test result shows entrance angle
In 165 ° of 90 °≤θ ＜, hole wall cut surface processing quality is good.Entrance angle θ finger-hole wall vector nshWith cutting speed vcAngle,
And hole wall vector nhRefer to the vector for being directed toward undressed region along hole wall direction from cut-out end in honeycomb cell face.It is cut by control
Entering angle θ, it is ensured that entrance angle can improve cutting edge cutting state within the scope of 165 ° of 90 °≤θ ＜ at single layer hole wall 21, to
Effectively improve the processing quality of hole wall cut surface, realization type face, chamfering, the low damage processing of trimming.
In cellular material machining, to realize that entrance angle is within the scope of 165 ° of 90 °≤θ ＜ at single layer hole wall 21, choosing
It is calculating position to take point of a knife and hole wall contact point, and since 1 rotating speed of cutter is high, calculating position is equivalent to cutter 1 in cutting process
Participate in the intersection point of the circular arc and hole wall of cutting.Determine that 2 direction of feed of workpiece is parallel with the double-deck hole wall 22 first, arbitrary calculating position
It is as follows to locate entrance angle θ calculating：
In formula, e is the relative position parameter of 2 cell of workpiece and cutter 1, i.e. 1 centre of gyration of cutter to wanted machining
The distance of nearest cell node 23 in surplus region (along vertical feed direction)；Y is calculating position parameter, i.e. calculating position to knife
Has the distance of 1 centre of gyration (along vertical feed direction).
The cutting speed v of calculating position is determined according to tool geometrical parameterc=(vx, vy)：
In formula, R is the outer diameter of cutterhead 11 with teeth.
According to above-mentioned result of calculation, entrance angle at calculating position can be calculated：
It secondly, can under conditions of 2 direction of feed of workpiece is opposite with the component velocity direction of cutting speed in feed direction
By adjusting material structure parameterThe relative position of 1 geometric parameter of cutter (R) and workpiece 2 cell and cutter
Parameter (e) so that entrance angle is within the scope of 165 ° of 90 °≤θ ＜.
As shown in figure 3, by geometrical analysis it is found that dividing speed along direction of feed in 2 direction of feed of workpiece and cutting speed
Under conditions of degree direction is opposite, entrance angle θ reduces as y increases at single layer hole wall 21.However, there are two types of angles in cellular material
The single layer hole wall 21 of degree, a kind of and tool feeding angular separation μ≤90 °, 90 ° of another μ ＞, hole wall vector nhIt can be in μ≤90 °
Single layer hole wall 21 at it is tangent with cutter 1 when change, change boundary y=Rcos μ, therefore can be by 1 areas Fen Weiliangge of cutter
Domain, y ∈ (R, Rcos μ) are region a1, y ∈ (RcoS μ, 0) are region a2.Due to that can occur at transformation boundary y=Rcos μ
The transformation that 180 ° to 0 ° of entrance angle, therefore select a1For cutting zone, a2For non-cutting region.
As shown in Fig. 1~10, a kind of process tool 1 of the low damage of the big entrance angle of cellular material, includes 11 He of serrated knife disk
Knife bar component, the knife bar component include briquetting 12, knife bar 13 and screw 14；The cutterhead with teeth 11 passes through angle with knife bar 13
Coordinate for the circular conical surface of δ, so that briquetting 12 is compressed cutterhead 11 with teeth using screw 14, to ensure that cutterhead 11 with teeth and knife bar 13 are same
Axis.
The cutterhead with teeth 11 is evenly distributed in 20~40 cutters tooth 112, gullet depth h1=5~10mm.There is serrated knife
11 bottom surface of disk be arranged depth be 0.2mm interior concave plane 117, interior concave plane 117 be circular flat and with 11 plane of cutterhead with teeth
Coaxially, 117 edge of interior concave plane distance h at tooth root2=5~10mm；11 upper surface of cutterhead with teeth has round boss 114,
Round boss 114 and cutterhead 11 with teeth are coaxial, and 114 front circle centre position of boss is 10 through-holes of φ, and through-hole edge is with angle δ
Circular conical surface, for circular conical surface as knife bar positioning surface 115,114 side of boss is arc surface, and arc surface is logical with 11 upper surface of cutterhead with teeth
The connection of intermediate incline 113 is crossed, 114 bottom surface of boss is taper type depth chamber 116.
There are three cutting edges, i.e. main cutting edge 1121, end cutting edge 1123 and side for the tool of cutter tooth 112 of the cutterhead with teeth 11
Sword 1122；1121 anterior angle γ of the main cutting edge1=30~45 °, cutting edge inclination λs=15~30 °；1123 anterior angle γ of end cutting edge2
=75~82 °, blade is the circular arc of arc length s=1~2mm；Side edge 1122 is 1121 anterior angle γ of main cutting edge1And end cutting edge
1123 anterior angle γ2The cutting edge generated naturally after sharpening.
Further, angle δ=15 °~30 ° of the circular conical surface；
A kind of processing method of the low damage of the big entrance angle of cellular material, includes the following steps：
A, make 2 direction of feed of workpiece parallel with the double-deck hole wall 22, choose cutter tooth 112 in cutting process and connect with workpiece 2
Tactile region a1For cutting zone, maximum cutting width a is calculated according to formula (4)w, i.e. region a12 direction of feed of vertical workpiece
Width.
In formula, R is the outer diameter of cutterhead 11 with teeth,For hole wall corner.
B, traverse furrow slot 25 and longitudinal furrow slot 24, adjacent longitudinal furrow slot 24 are cut out in allowance region using cutting sheet or slotting cutter
Between material be one-pass allowance, the depth of traverse furrow slot 25 and longitudinal furrow slot 24 is less than the thickness 0.1 in allowance region
~0.2mm；24 spacing of longitudinal furrow slot is than maximum cutting width awFew 2~3mm, 25 spacing of traverse furrow slot are 1-1.5 times of R.
C, cutter 1 is mounted on the main shaft of High-speed NC Machining lathe, workpiece 2 is fixed on the table, and cutter 1 is made to return
Turn center to nearest longitudinal furrow slot 24 apart from i.e. along the distance of 2 direction of feed of vertical workpiece fewer than the outer diameter R of cutterhead 11 with teeth 1.5~
2mm starts High-speed NC Machining lathe, main shaft rotation；Complete one-pass cutting.
D, using the effect of traverse furrow slot 25 and longitudinal furrow slot 24, so that one-pass is cut the chip to be formed and fall off in time, avoid
Chip winds knife bar 13.
If E, 2 allowance region of workpiece cutting finishes, F is gone to step；Otherwise return to step C redefine cutter 1 with
The mutual alignment of workpiece 2 starts the cutting of feed next time.
F, after the cutting of 2 allowance region of workpiece, main shaft stalling is removed workpiece 2 and is detected.
The present invention is not limited to the present embodiment, any equivalent concepts in the technical scope of present disclosure or changes
Become, is classified as protection scope of the present invention.
Claims (3)
1. a kind of process tool of the low damage of the big entrance angle of cellular material, it is characterised in that：Include serrated knife disk (11) and knife bar
Component, the knife bar component include briquetting (12), knife bar (13) and screw (14)；The cutterhead with teeth (11) is logical with knife bar (13)
The circular conical surface that over-angle is δ coordinates, and so that briquetting (12) is compressed cutterhead (11) with teeth using screw (14), to ensure cutterhead with teeth
(11) coaxial with knife bar (13)；
The cutterhead with teeth (11) is evenly distributed in 20~40 cutters tooth (112), gullet depth h1=5~10mm；Cutterhead with teeth
(11) bottom surface setting depth be 0.2mm interior concave plane (117), interior concave plane (117) be circular flat and with cutterhead with teeth
(11) planar coaxial, interior concave plane (117) edge distance h at tooth root2=5~10mm；Cutterhead (11) upper surface with teeth has
Round boss (114), coaxially with cutterhead with teeth (11), boss (114) front circle centre position is 10 through-holes of φ to round boss (114),
Through-hole edge is the circular conical surface with angle δ, and for circular conical surface as knife bar positioning surface (115), boss (114) side is arc surface,
Arc surface is connect with cutterhead with teeth (11) upper surface by intermediate incline (113), and boss (114) bottom surface is taper type depth chamber
(116)；
There are three cutting edges, i.e. main cutting edge (1121), end cutting edge (1123) for cutter tooth (112) tool of the cutterhead with teeth (11)
With side edge (1122)；Main cutting edge (1121) the anterior angle γ1=30~45 °, cutting edge inclination λs=15~30 °；End cutting edge
(1123) anterior angle γ2=75~82 °, blade is the circular arc of arc length s=1~2mm；Side edge (1122) is before main cutting edge (1121)
Angle γ1With end cutting edge (1123) anterior angle γ2The cutting edge generated naturally after sharpening.
2. a kind of process tool of the low damage of the big entrance angle of cellular material according to claim 1, it is characterised in that：It is described
Angle δ=15 °~30 ° of circular conical surface.
3. a kind of processing method of the low damage of the big entrance angle of cellular material, it is characterised in that：Include the following steps：
A, make workpiece (2) direction of feed parallel with double-deck hole wall (22), choose cutter tooth (112) in cutting process and sent out with workpiece (2)
The region a of raw contact1For cutting zone, maximum cutting width a is calculated according to the following formulaw, i.e. region a1Vertical workpiece (2) into
To the width in direction；
In formula, R is the outer diameter of cutterhead with teeth (11),For hole wall corner；
B, traverse furrow slot (25) and longitudinal furrow slot (24), adjacent longitudinal furrow slot are cut out in allowance region using cutting sheet or slotting cutter
(24) material is the allowance of one-pass between, and the depth of traverse furrow slot (25) and longitudinal furrow slot (24) is less than allowance region
0.1~0.2mm of thickness；Longitudinal furrow slot (24) spacing is than maximum cutting width awFew 2~3mm, traverse furrow slot (25) spacing are the 1- of R
1.5 again；
C, cutter (1) is mounted on the main shaft of High-speed NC Machining lathe, workpiece (2) is fixed on the table, makes cutter (1)
Outer diameter of the centre of gyration to nearest longitudinal furrow slot (24) distance i.e. along the distance of vertical workpiece (2) direction of feed than cutterhead with teeth (11)
R lacks 1.5~2mm, starts High-speed NC Machining lathe, main shaft rotation；Complete one-pass cutting；
D, using the effect of traverse furrow slot (25) and longitudinal furrow slot (24), so that one-pass is cut the chip to be formed and fall off in time, avoid
Chip winds knife bar (13)；
If E, workpiece (2) allowance region cutting finishes, F is gone to step；Otherwise return to step C redefine cutter (1) with
The mutual alignment of workpiece (2) starts the cutting of feed next time；
F, after the cutting of workpiece (2) allowance region, main shaft stalling is removed workpiece (2) and is detected.
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| CN201810476986.8A CN108637382B (en) | 2018-05-17 | 2018-05-17 | Machining tool and machining method for large cutting angle and low damage of honeycomb material |
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|---|---|---|---|
| CN201810476986.8A CN108637382B (en) | 2018-05-17 | 2018-05-17 | Machining tool and machining method for large cutting angle and low damage of honeycomb material |
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| CN108637382B CN108637382B (en) | 2019-12-27 |
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| CN111889765A (en) * | 2020-06-17 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Numerical control machining method for corner structure of paper honeycomb part |
| CN114227380A (en) * | 2021-12-10 | 2022-03-25 | 国营芜湖机械厂 | Damage-proof honeycomb material processing method |
| CN114393252A (en) * | 2022-01-19 | 2022-04-26 | 上海阿为特精密机械股份有限公司 | Method for uniformly removing sharp corners with cross characteristics |
| CN114619056A (en) * | 2020-12-10 | 2022-06-14 | 苏州领裕电子科技有限公司 | Cutting method for removing male and female surfaces by using disc cutter |
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| CN110216296A (en) * | 2019-05-30 | 2019-09-10 | 西安法士特汽车传动有限公司 | A kind of thick grooving method reducing processing fork slot cost |
| CN110216296B (en) * | 2019-05-30 | 2021-07-20 | 西安法士特汽车传动有限公司 | Rough groove cutting method for reducing machining shifting fork groove cost |
| CN110889149A (en) * | 2019-10-12 | 2020-03-17 | 大连理工大学 | Method for predicting burr length of fiber reinforced composite material machined by fillet cutter |
| CN110889149B (en) * | 2019-10-12 | 2021-04-20 | 大连理工大学 | Method for predicting burr length of fiber reinforced composite material machined by fillet cutter |
| CN111571649B (en) * | 2020-05-22 | 2021-08-27 | 大连海事大学 | Special cutter for reversely cutting narrow blind holes of honeycomb composite material |
| CN111571649A (en) * | 2020-05-22 | 2020-08-25 | 大连海事大学 | Special cutter for reversely cutting narrow blind holes of honeycomb composite material |
| CN111889765A (en) * | 2020-06-17 | 2020-11-06 | 成都飞机工业（集团）有限责任公司 | Numerical control machining method for corner structure of paper honeycomb part |
| CN114619056A (en) * | 2020-12-10 | 2022-06-14 | 苏州领裕电子科技有限公司 | Cutting method for removing male and female surfaces by using disc cutter |
| CN114227380A (en) * | 2021-12-10 | 2022-03-25 | 国营芜湖机械厂 | Damage-proof honeycomb material processing method |
| CN114227380B (en) * | 2021-12-10 | 2023-10-20 | 国营芜湖机械厂 | Processing method of anti-damage honeycomb material |
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| CN114393252B (en) * | 2022-01-19 | 2024-01-23 | 上海阿为特精密机械股份有限公司 | Method for uniformly removing sharp corners of crossed features |
| CN115673864A (en) * | 2022-11-11 | 2023-02-03 | 大连理工大学 | Chip breaking method for ultrasonic cutting of honeycomb core |
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