CN110405411A - A kind of hinged shaft hole forming method of folding wing - Google Patents
A kind of hinged shaft hole forming method of folding wing Download PDFInfo
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- CN110405411A CN110405411A CN201910272873.0A CN201910272873A CN110405411A CN 110405411 A CN110405411 A CN 110405411A CN 201910272873 A CN201910272873 A CN 201910272873A CN 110405411 A CN110405411 A CN 110405411A
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- folding wing
- boss
- shaft hole
- hinged shaft
- blank
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- 238000000034 method Methods 0.000 title claims abstract description 76
- 238000005520 cutting process Methods 0.000 claims abstract description 44
- 238000003754 machining Methods 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000003801 milling Methods 0.000 claims description 54
- 238000005553 drilling Methods 0.000 claims description 24
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 7
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/02—Stabilising arrangements
- F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B33/00—Manufacture of ammunition; Dismantling of ammunition; Apparatus therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Drilling And Boring (AREA)
- Milling Processes (AREA)
Abstract
The present invention provides a kind of hinged shaft hole forming method of folding wing, the following steps are included: providing folding wing blank according to design drawing, preparing multiple technique blocks, it is multiple that each technique block is fed into machining between two neighboring boss, using multiple and different cutting tools along the direction that multiple boss arrange, obtain hinge axis hole, technique block is removed again, is completed the process.Using technical solution of the present invention, by being embedded in multiple technique blocks on folding wing blank, each boss on folding wing blank is set temporarily to link together in carrying out cutting process, to guarantee that the machining concentricity of hinge axis hole is laid a good foundation, when carrying out hinged shaft hole machined, further through using a variety of different types of cutting tools to carry out multiple machining, remove blank material gradually, mismachining tolerance after reducing forming parts, improves processing quality.
Description
Technical field
The present invention relates to mechanical processing technique technical fields, particularly relate to the hinged shaft hole forming method of folding wing.
Background technique
Folding wing is components important in the weapons and ammunitions such as guided missile, and material is mainly aluminium alloy, steel alloy or titanium
Alloy, folding wing generally passes through the hinge axis hole being arranged thereon and is hinged on the surface of weapons and ammunitions, under normal circumstances, in ammunition
Folding wing in daily storage and transportational process, ammunition can be folded on the surface of ammunition, to reduce the effective of ammunition
Storage volume, convenient transportation and storage, and when ammunition is launched from cartridge chamber, folding wing is just unfolded, military to guarantee
Device ammunition keeps good service performance when in use, it is necessary to folding wing be enable reliably to open up when launching from cartridge chamber
It opens, this requires the machining accuracies of folding wing hinge axis hole must be higher.However, folding wing hinge axis hole is that a draw ratio is big
In 10 elongated hole, middle part partial region is additionally provided with partition, in the drilling processing for carrying out folding wing hinge axis hole, often
It cannot be guaranteed that the coaxial accuracy between each unit hole separated, carrys out the technologists of field of machining
It says, difficulty of processing is larger.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of hinged shaft hole forming methods of folding wing.
The present invention is achieved by the following technical programs.
The present invention provides a kind of hinged shaft hole forming methods of folding wing, mainly comprise the steps that
Step 1: folding wing blank is provided according to design drawing, the same side surface of the folding wing blank is in line
Property is arranged with multiple boss；
Step 2: preparing multiple technique blocks, each technique block width respectively with appointing in multiple boss described in step 1
The spacing anticipated between two neighboring boss is consistent, then multiple technique blocks are flush-mounted in respectively between two neighboring boss；
Step 3: the folding wing blank clamping of technique block will be embedded in described in step 2 on lathe, use is multiple
Different cutting tools is multiple along the direction feeding machining that the multiple boss arranges, used in each machining
Cutting tool nominal diameter is all larger than the nominal diameter of cutting tool used in a preceding machining, passes through cutting tool
All boss and technique block are worn, some materials in the boss and technique block are cut off, are obtained on the folding wing blank
One runs through all boss and the hinge axis hole consistent with design drawing, then removes the technique block, completes the process.
The direction feeding cutting arranged using multiple and different cutting tools along the multiple boss described in step 3
Repeatedly, the cutting tool includes drill bit, milling cutter and reamer for processing, the hinged shaft hole forming method of the folding wing further include with
Lower step:
Step 1: drilling processing: the direction feeding drilling arranged using drill bit along the multiple boss is machined to 2 times less,
Each drilling processes used drill bit nominal diameter and is greater than the nominal diameter that used drill bit is processed in a preceding drilling, passes through drill bit
All boss and technique block are worn, some materials in the boss and technique block are cut off, are obtained on the folding wing blank
One runs through the drill bit bottom outlet of all boss；
Step 2: Milling Process: using milling cutter along drill bit bottom outlet axial feed Milling Process at least 2 times described in step 1,
Each used milling cutter nominal diameter of Milling Process is greater than the nominal diameter of a preceding milling cutter, makes milling cutter through drill bit bottom outlet, cuts
Except some materials in the boss and technique block, the drill bit bottom outlet is expanded as into milling cutter bottom outlet；
Step 3: ream machining: using reamer along milling cutter bottom outlet axial feed ream machining at least 2 times described in step 2,
Each used reamer nominal diameter of ream machining is greater than the nominal diameter of a preceding reamer, makes reamer through milling cutter bottom outlet, cuts
Except some materials in the boss and technique block, the milling cutter bottom outlet is expanded as into the hinge axis hole consistent with design drawing.
The material of the folding wing blank is the aluminium alloy that the trade mark is YG3X；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 300~500r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 500~800r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 200~300r/min；
The amount of feeding: 0.1~0.3mm/r.
The material of the folding wing blank is the steel alloy that the trade mark is YT15；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 100~150r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 200~400r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 80~150r/min；
The amount of feeding: 0.1~0.2mm/r.
The material of the folding wing blank is the titanium alloy that the trade mark is YW2；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 80~120r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 100~200r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 50~100r/min；
The amount of feeding: 0.08~0.15mm/r.
The milling cutter or reamer are connected in turn by cutter head, cutter hub and knife handle to be formed, and the head outer diameter is the milling
The nominal diameter of knife or reamer if the cutter hub outer diameter is d2, then meets following if the head outer diameter is d1 between d1 and d2
Relational expression:
D2=d1-0.3mm.
The material of the folding wing blank is the aluminium alloy that the trade mark is YG3X, the geometrical structure parameter of the cutting tool
Are as follows:
Anterior angle: 15 °~20 °；
Relief angle: 12 °~15 °；
Helical angle: 45 °~60 °.
The material of the folding wing blank is the steel alloy that the trade mark is YT15, the geometrical structure parameter of the cutting tool
Are as follows:
Anterior angle: 8 °~15 °；
Relief angle: 8 °~12 °；
Helical angle: 30 °~45 °.
The material of the folding wing blank is the titanium alloy that the trade mark is YW2, the geometrical structure parameter of the cutting tool
Are as follows:
Anterior angle: 5 °~10 °；
Relief angle: 5 °~10 °；
Helical angle: 30 °~45 °.
If the hinged shaft hole depth is l, the length of the cutting tool is L, then meets following relationship between L and l:
L=l+50mm.
The beneficial effects of the present invention are: technical solution of the present invention is used, it is more by being embedded on folding wing blank
A technique block makes each boss on folding wing blank temporarily link together in carrying out cutting process, to guarantee
The machining concentricity of hinge axis hole is laid a good foundation, a variety of different types of further through using when carrying out hinged shaft hole machined
Cutting tool has carried out multiple machining, removes blank material gradually, so that because of cutting tool vibration or bite
Final machining error caused by tool rigging error is reduced to minimum, improves machining accuracy and product quality, meets
The processing technology requirement of folding wing hinge axis hole, processing technology provided by the present invention is easy to operate, only at present extensively
The general NC lathe that uses is conducive to improve existing general NC lathe it is achieved that corresponding manufacturing cost is not also high
Utilization rate of equipment and installations.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is the part drawing of folding wing of the present invention；
Fig. 3 is the structural schematic diagram of folding wing blank of the present invention；
Fig. 4 is that folding wing blank of the present invention and technique block are embedded in connection schematic diagram；
Fig. 5 is the structural schematic diagram of milling cutter or reamer of the present invention.
In figure: 1- folding wing, 2- folding wing blank, 3- technique block, 11- hinge axis hole, 21- boss, 41- cutter head,
42- cutter hub, 43- knife handle.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, in the present embodiment, the present invention provides a kind of hinged shaft hole machineds of folding wing
Method, comprising the following steps:
Step 1: folding wing blank 2 is provided according to design drawing, the same side surface of folding wing blank 2 is linear
It is arranged with multiple boss 21；
Step 2: preparing multiple technique blocks 3, each 3 width of technique block respectively with appointing in boss 21 multiple in step 1
The spacing anticipated between two neighboring boss 21 is consistent, then by multiple technique blocks 3 respectively between two neighboring boss 21；
It is preferred that all 3 width of technique block are consistent in multiple technique blocks 3.
Step 3: will be embedded in 2 clamping of folding wing blank of technique block 3 on lathe in step 2, using it is multiple not
Same cutting tool is multiple along the direction feeding machining that multiple boss 21 arrange, cutting used in each machining
Cutter nominal diameter is all larger than the nominal diameter of cutting tool used in a preceding machining, makes cutting tool through institute
There are boss 21 and technique block 3, cut off some materials in boss 21 and technique block 3, one is obtained on folding wing blank 2
Through all boss 21 and the hinge axis hole 11 consistent with design drawing, then technique block 3 is removed, completed the process.
Further, it is fed using multiple and different cutting tools along the direction that multiple boss 21 arrange in step 3
Machining is multiple, and cutting tool includes drill bit, milling cutter and reamer, and the hinged shaft hole forming method of folding wing further includes following step
It is rapid:
Step 1: drilling processing: arrange using drill bit along multiple boss 21 direction feeding drilling be machined to lack 2 times, often
Secondary drilling processes used drill bit nominal diameter and is greater than the nominal diameter that used drill bit is processed in a preceding drilling, runs through drill bit
All boss 21 and technique block 3 cut off some materials in boss 21 and technique block 3, and one is obtained on folding wing blank 2
Through the drill bit bottom outlet of all boss 21；
Step 2: Milling Process: using milling cutter along step 1 drill bit bottom outlet axial feed Milling Process at least 2 times, every time
The used milling cutter nominal diameter of Milling Process is greater than the nominal diameter of a preceding milling cutter, makes milling cutter through drill bit bottom outlet, cuts off convex
Drill bit bottom outlet is expanded as milling cutter bottom outlet by some materials in platform 21 and technique block 3；
Further, when the material of folding wing blank 2 is the aluminium alloy that the trade mark is YG3X；
The technological parameter that drilling is processed in step 1 are as follows:
The speed of mainshaft: 300~500r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of Milling Process in step 2 are as follows:
The speed of mainshaft: 500~800r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of ream machining in step 3 are as follows:
The speed of mainshaft: 200~300r/min；
The amount of feeding: 0.1~0.3mm/r.
Further, when the material of folding wing blank 2 is the steel alloy that the trade mark is YT15；
The technological parameter of middle drilling processing in step 1 are as follows:
The speed of mainshaft: 100~150r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of Milling Process in step 2 are as follows:
The speed of mainshaft: 200~400r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of ream machining in step 3 are as follows:
The speed of mainshaft: 80~150r/min；
The amount of feeding: 0.1~0.2mm/r.
Further, when the material of folding wing blank 2 is the titanium alloy that the trade mark is YW2；
The technological parameter that drilling is processed in step 1 are as follows:
The speed of mainshaft: 80~120r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of Milling Process in step 2 are as follows:
The speed of mainshaft: 100~200r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of ream machining in step 3 are as follows:
The speed of mainshaft: 50~100r/min；
The amount of feeding: 0.08~0.15mm/r.
Step 3: ream machining: using reamer along step 2 milling cutter bottom outlet axial feed ream machining at least 2 times, every time
The used reamer nominal diameter of ream machining is greater than the nominal diameter of a preceding reamer, makes reamer through milling cutter bottom outlet, cuts off convex
Milling cutter bottom outlet is expanded as the hinge axis hole 11 consistent with design drawing by some materials in platform 21 and technique block 3.
In summary, the technological parameter of drilling processing, Milling Process and ream machining is as shown in table 1:
1 drilling processing of table, Milling Process and ream machining technological parameter
Further, as shown in figure 5, milling cutter or reamer are connected in turn group by cutter head 41, cutter hub 42 and knife handle 43
It is the nominal diameter of the milling cutter or reamer at, 41 outer diameter of cutter head, if 41 outer diameter of cutter head is d1, if 42 outer diameter of cutter hub is d2, then d1
Meet following relationship between d2:
D2=d1-0.3mm.
It is preferred that 41 length of cutter head is l1, in multiple technique blocks 3, maximum 3 width of technique block of width is set as kmax, then l1 with
Meet following relationship between kmax:
L1>kmax+30mm。
Further, when the material of folding wing blank 2 is the aluminium alloy that the trade mark is YG3X, the geometry of cutting tool
Parameter are as follows:
Anterior angle: 15 °~20 °；
Relief angle: 12 °~15 °；
Helical angle: 45 °~60 °.
Further, when the material of folding wing blank 2 is the steel alloy that the trade mark is YT15, the geometry of cutting tool
Parameter are as follows:
Anterior angle: 8 °~15 °；
Relief angle: 8 °~12 °；
Helical angle: 30 °~45 °.
Further, when the material of folding wing blank 2 is the titanium alloy that the trade mark is YW2, the geometry of cutting tool
Parameter are as follows:
Anterior angle: 5 °~10 °；
Relief angle: 5 °~10 °；
Helical angle: 30 °~45 °.
In summary, the geometrical structure parameter of various cutting tools is as shown in table 2:
The geometrical structure parameter of 2 cutting tool of table
Further, when setting 11 depth of hinge axis hole as l, the length of cutting tool is L, then meets between L and l with ShiShimonoseki
It is formula:
L=l+50mm.
Folding wing is made by being embedded in multiple technique blocks 3 on folding wing blank 2 using technical solution of the present invention
Each boss 21 temporarily links together in carrying out cutting process on blank 2, to guarantee that the cutting of hinge axis hole 11 adds
Work concentricity is laid a good foundation, when carrying out hinge axis hole 11 and processing, further through using a variety of different types of cutting tools to carry out
Multiple machining, removes blank material gradually, so that because of cutting tool vibration or cutting tool rigging error institute
Caused by final machining error be reduced to minimum, improve machining accuracy and product quality, meet 1 hinged shaft of folding wing
The processing technology requirement in hole 11, processing technology provided by the present invention is easy to operate, common only with what is be widely used at present
Numerically-controlled machine tool is conducive to the equipment utilization for improving existing general NC lathe it is achieved that corresponding manufacturing cost is not also high
Rate.
Claims (10)
1. a kind of hinged shaft hole forming method of folding wing, it is characterised in that: the following steps are included:
Step 1: folding wing blank (2) are provided according to design drawing, the same side surface of the folding wing blank (2) is in
Linear rows show multiple boss (21)；
Step 2: preparing multiple technique blocks (3), each technique block (3) width respectively with multiple boss (21) described in step 1
In two boss (21) of arbitrary neighborhood between spacing it is consistent, then by multiple technique blocks (3) respectively flush-mounted in two neighboring convex
Between platform (21)；
Step 3: folding wing blank (2) clamping of technique block (3) will be embedded in described in step 2 on lathe, using more
A different cutting tool is multiple along the direction feeding machining that the multiple boss (21) arranges, each machining institute
The cutting tool nominal diameter used is all larger than the nominal diameter of cutting tool used in a preceding machining, makes to cut
Cutter runs through all boss (21) and technique block (3), some materials in the boss (21) and technique block (3) is cut off, described
One is obtained on folding wing blank (2) runs through all boss (21) and the hinge axis hole (11) consistent with design drawing,
The technique block (3) is removed again, is completed the process.
2. the hinged shaft hole forming method of folding wing according to claim 1, it is characterised in that:
The direction feeding cutting arranged using multiple and different cutting tools along the multiple boss (21) described in step 3
Repeatedly, the cutting tool includes drill bit, milling cutter and reamer for processing, the hinged shaft hole forming method of the folding wing further include with
Lower step:
Step 1: drilling processing: the direction feeding drilling arranged using drill bit along the multiple boss (21) is machined to 2 times less,
Each drilling processes used drill bit nominal diameter and is greater than the nominal diameter that used drill bit is processed in a preceding drilling, passes through drill bit
All boss (21) and technique block (3) are worn, some materials in the boss (21) and technique block (3) are cut off, in the folded ammunition
The drill bit bottom outlet for running through all boss (21) is obtained on wing blank (2)；
Step 2: Milling Process: using milling cutter along drill bit bottom outlet axial feed Milling Process at least 2 times described in step 1, every time
The used milling cutter nominal diameter of Milling Process is greater than the nominal diameter of a preceding milling cutter, makes milling cutter through drill bit bottom outlet, cuts off institute
Some materials in boss (21) and technique block (3) are stated, the drill bit bottom outlet is expanded as into milling cutter bottom outlet；
Step 3: ream machining: using reamer along milling cutter bottom outlet axial feed ream machining at least 2 times described in step 2, every time
The used reamer nominal diameter of ream machining is greater than the nominal diameter of a preceding reamer, makes reamer through milling cutter bottom outlet, cuts off institute
Some materials in boss (21) and technique block (3) are stated, the milling cutter bottom outlet is expanded as into the hinge axis hole consistent with design drawing
(11)。
3. the hinged shaft hole forming method of folding wing according to claim 2, it is characterised in that: the folding wing blank
(2) material is the aluminium alloy that the trade mark is YG3X；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 300~500r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 500~800r/min；
The amount of feeding: 0.1~0.3mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 200~300r/min；
The amount of feeding: 0.1~0.3mm/r.
4. the hinged shaft hole forming method of folding wing according to claim 2, it is characterised in that: the folding wing blank
(2) material is the steel alloy that the trade mark is YT15；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 100~150r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 200~400r/min；
The amount of feeding: 0.1~0.2mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 80~150r/min；
The amount of feeding: 0.1~0.2mm/r.
5. the hinged shaft hole forming method of folding wing according to claim 2, it is characterised in that: the folding wing blank
(2) material is the titanium alloy that the trade mark is YW2；
The technological parameter of the processing of drilling described in step 1 are as follows:
The speed of mainshaft: 80~120r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of Milling Process described in step 2 are as follows:
The speed of mainshaft: 100~200r/min；
The amount of feeding: 0.08~0.15mm/r；
The technological parameter of ream machining described in step 3 are as follows:
The speed of mainshaft: 50~100r/min；
The amount of feeding: 0.08~0.15mm/r.
6. the hinged shaft hole forming method of folding wing according to claim 2, it is characterised in that: the milling cutter or reamer are by knife
Head (41), cutter hub (42) and knife handle (43) are connected in turn composition, and cutter head (41) outer diameter is the milling cutter or reamer
Nominal diameter if the cutter hub (42) outer diameter is d2, then meets if the cutter head (41) outer diameter is d1 between d1 and d2 with ShiShimonoseki
It is formula:
D2=d1-0.3mm.
7. the hinged shaft hole forming method of folding wing according to claim 1, it is characterised in that: the folding wing blank
(2) material is the aluminium alloy that the trade mark is YG3X, the geometrical structure parameter of the cutting tool are as follows:
Anterior angle: 15 °~20 °；
Relief angle: 12 °~15 °；
Helical angle: 45 °~60 °.
8. the hinged shaft hole forming method of folding wing according to claim 1, it is characterised in that: the folding wing blank
(2) material is the steel alloy that the trade mark is YT15, the geometrical structure parameter of the cutting tool are as follows:
Anterior angle: 8 °~15 °；
Relief angle: 8 °~12 °；
Helical angle: 30 °~45 °.
9. the hinged shaft hole forming method of folding wing according to claim 1, it is characterised in that: the folding wing blank
(2) material is the titanium alloy that the trade mark is YW2, the geometrical structure parameter of the cutting tool are as follows:
Anterior angle: 5 °~10 °；
Relief angle: 5 °~10 °；
Helical angle: 30 °~45 °.
10. the hinged shaft hole forming method of folding wing according to claim 1, it is characterised in that: set the hinge axis hole (11)
Depth is l, and the length of the cutting tool is L, then meets following relationship between L and l:
L=l+50mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910272873.0A CN110405411B (en) | 2019-04-04 | 2019-04-04 | Hinge shaft hole machining method for folding missile wing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910272873.0A CN110405411B (en) | 2019-04-04 | 2019-04-04 | Hinge shaft hole machining method for folding missile wing |
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