CN107931691A - A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set - Google Patents
A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set Download PDFInfo
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- CN107931691A CN107931691A CN201711264694.XA CN201711264694A CN107931691A CN 107931691 A CN107931691 A CN 107931691A CN 201711264694 A CN201711264694 A CN 201711264694A CN 107931691 A CN107931691 A CN 107931691A
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- Prior art keywords
- knife
- arcuate member
- feed
- scale
- side set
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1054—T slot cutters
- B23C5/1063—T slot cutters with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0407—Cutting angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/205—Number of cutting edges six
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/207—Number of cutting edges eight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/208—Number of cutting edges ten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2215/00—Details of workpieces
- B23C2215/04—Aircraft components
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention discloses a kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set, first using " the T-shaped knife of hard alloy side set " processing part；Oneself design cutter, up and down in two planes of cutter hub are arranged in by cutting edge roundness side set.Then the processing technology of part roughing heat-treatment part finishing inspection is examined by standby forging, so that the surface quality of workpieces of processing is good, part qualification rate is high, the work efficiency of part processing is high, reduces pincers worker polishing operation, reduce part is influenced by human factor, shortens delivery cycle.
Description
Technical field
The present invention relates to technical field of mechanical processing, and in particular to a kind of large-scale arcuate member processing method of aircraft and
The T-shaped knife of processing side set.
Background technology
T-shaped knife is to be assemblied on milling machine to be used for the T-shaped groove of milling workpiece, the cutter of lateral grooves.T-shaped knife is called T-shaped milling
Knife, semicircle milling cutter, cotter mill cutter, can perfectly process T-shaped groove, lateral grooves processing normally maintains cutting at high temperature
Performance.
Such as the patent that Chinese utility model patent number is 200820054142.6 entitled T-shaped milling cutters, disclosed T-shaped knife,
It includes handle of a knife and cutter hub, and cutter hub is side set and both sides tooth punching, and angle is respectively 1 ~ 2 ° and 10 ~ 12 °, by using the cutter
Afterwards, its effect reached is that lathe vibrations reduce, cutting is light and handy, part stress is more uniform, more efficient, part surface
Better quality, cutter are damaged smaller.
In the large-scale arcuate member of processing aircraft, the aircraft arcuate member of certain model is particularly, due to part
Size itself is larger, ratio:Length × width × height is 2580mm × 540mm × 140mm, and design of part is hollow cell type chamber beam
（Such as Fig. 1）.It is that this structural member cannot effectively complete part to add using existing general processing method and technique first
Work.Secondly molding cutter can only be used to process when to the embedded SMA actuators of structural member, but due to cutter parameters, machined parameters etc. because
The influence of element, can cause workpiece following deficiency,
1）Part quality is poor；What is eaten in process due to cutter is full knife, and cutter stress is larger in part process, cuts
It is obvious to cut vibrations, causes part machined surface a large amount of bullet knife marks occur, plays knife mark and is distributed in bar dress on piece surface, seriously affected
Surface quality of workpieces, and play knife mark it is serious when can part cross and cut, cause the surface quality of part machined surface poor, and easily make inner cavity
Wall, which is crossed, to be cut.
2）Inner cavity root residual is more；In process, cutter, which expires knife cutting, shakes cutter, in the meeting of internal chamber wall root
Remain；
3）Increase pincers worker polishing amount；Since there are residual in surface quality difference and cavity wall root after processing, pincers worker process sanding and polishing is needed,
It is affected by human factors part quality larger.
4）Part process cycle is elongated；Part increases pincers worker polishing operation, and the polishing time is longer, extends the entirety of part
Process-cycle.
In addition there are efficiency is low, process-cycle length etc. to be asked for the processing technology of the large-scale arcuate member of existing aircraft
Topic.
The content of the invention
In order to overcome it is above-mentioned there are deficiency, the present invention provide herein a kind of design it is reasonable, simple in structure, easy to use plus
The work cycle short large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set.
Present invention technical solution used to achieve these goals is as follows：
First the present invention provides a kind of large-scale T-shaped knife of arcuate member processing side set of aircraft, it include handle of a knife, knife neck and
Cutter hub, the handle of a knife are connected by round estrade with knife neck, and knife neck connection cutter hub, the shank diameter is more than knife neck and round estrade,
Handle of a knife, round estrade, knife neck are connected with cutter hub in overall T-shaped after one, it is characterised in that：The cutting edge side set difference of the cutter hub
It is arranged in up and down in two planes of cutter hub.
The present invention falls the generation of knife situation in order to prevent, therefore threaded hole is provided with the handle of a knife, and in cutter chuck
The upper latch segment for setting locking cutter, enables cutter to maintain the lock status under any circumstance with cutter chuck, prevents
Fall the generation of knife.
Further preferred scheme in the present invention is：The cutting edge number of the cutter hub is 6 swords or 8 swords or 10 swords, and the sword
Mouth is 7 ° ~ 9 ° with horizontal direction angle α, and cutting edge is 5 ° ~ 8 ° with vertical angle β.Wherein described cutting edge and horizontal direction angle α are most
It is 7 ° well, cutting edge and vertical angle β are preferably 5 °.
Present invention also offers a kind of large-scale arcuate member processing method of aircraft, it comprises the following steps：
1) standby forging：It is spare to being carried out after the appearance and size of forging, material structure, material composition progress passed examination；
2) part roughing：First in " Z " direction of principal axis feed, each feed step pitch is 2 ~ 5mm, then further around feature side-wall process into
Knife, feed step pitch is 0.5mm ~ 1mm, unilateral to stay allowance 1mm ~ 3mm.The surplus that roughing of the present invention is reserved cannot it is excessive and
It is too small.Crossing conference influences the release of machining stress, and stress continues to discharge after causing finishing, makes part deformation；Too small adds
The pre- allowance of work, after part stress released-deformation can be caused, allowance for finish deficiency.Trial cut proves the allowance of 1 ~ 3mm, can
Surplus is enough when effectively removing machining stress, and can guarantee that finishing.
3) it is heat-treated：Part after the completion of part roughing is made annealing treatment, whens furnace temperature≤200 DEG C enters stove, enters stove
After heat up, programming rate≤100 DEG C/h, temperature is warming up to 650 DEG C ± 10 DEG C, when insulation 3 is small after cool to≤200 with the furnace
DEG C when come out of the stove；
4) Finishing Parts Machining：It is first 2mm ~ 3mm in " Z " direction of principal axis feed, each feed step pitch, side wall, which is worked into, meets design drawing
The thickness of paper requirement；
5) examine：Examine the quality of the production and filter out substandard product.
The further preferred technical solution of processing method provided by the present invention is：Feed velocity in the step 3) is
500 ~ 600mm/min, 1000 ~ 1200r/min of the speed of mainshaft.
The further preferred technical solution of processing method provided by the present invention is：The step 5）Middle feed velocity is
100 ~ 120mm/min, 500 ~ 600r/min of the speed of mainshaft.
When the further preferred technical solution of processing method provided by the present invention is the roughing：First in " Z " axis side
To feed, each feed step pitch is 3mm, then processes feed further around feature side-wall, and feed step pitch is 0.5mmmm, and unilateral stay adds
Spare time measures 2mm.
The further preferred technical solution of processing method provided by the present invention is：During Finishing Parts Machining：First in " Z " axis side
To feed, each feed step pitch is 2.8mm.
Beneficial effects of the present invention are as follows：
Advantage 1. uses the special T-shaped tool sharpening of hard alloy side set so that surface quality of workpieces after processing is good, part closes
Lattice rate is high.
Advantage 2. uses the special T-shaped tool sharpening of hard alloy side set, and the work efficiency of part processing is high, reduces pincers
Work polishing operation, also reduce part is influenced by human factor, shortens delivery cycle.
Advantage 3. uses the special T-shaped tool sharpening of hard alloy side set, increases threaded hole at handle of a knife so that cutter can
With with collet locking mechanism, prevent from falling the generation of knife in processing, part is crossed the probability cut because falling knife and be preferably minimized.
Advantage 4, cutter using the present invention and processing technology eliminate cavity root clout residual, reduce pincers worker polishing work
Sequence, shortens the overall processing cycle.
Brief description of the drawings
Fig. 1 is workpiece structure diagram of the present invention；
Fig. 2 is T-shaped knife structure diagram in the present invention；
Fig. 3 is the present invention to work pieces process view；
In figure：Handle of a knife 1, round estrade 2, knife neck 3, cutter hub 4, cutting edge 5, threaded hole 6.
Embodiment
Below in conjunction with attached drawing, the present invention is described in detail, the technical solution in the embodiment of the present invention is carried out clear
Chu, be fully described by, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, what those of ordinary skill in the art were obtained without making creative work is all
Other embodiment, belongs to the scope of protection of the invention.
Embodiment
As shown in Fig. 2, the present invention provides a kind of T-shaped knife of hard alloy side set and is used for the large-scale arcuate member of aircraft herein
Processing, a kind of large-scale T-shaped knife of arcuate member processing side set of aircraft, it includes handle of a knife 1, knife neck 3 and cutter hub 4, the knife
Handle 1 is connected by round estrade 2 with knife neck 3, and knife neck 3 connects cutter hub 4.1 diameter of handle of a knife is more than knife neck 3 and round estrade 2, handle of a knife
1st, round estrade 2, knife neck 3 and the connection of cutter hub 4 are in overall T-shaped after one.
The improvement first of the present invention is that 5 side set of cutting edge of the cutter hub 4 is being arranged in the two flat up and down of cutter hub 1
On face.The cutting edge number of cutter hub is further wherein arranged to 6 swords or 8 swords or 10 swords, and by cutting edge 5 and horizontal direction angle α
6 ° ~ 8 ° preferably 7 ° are arranged to, cutting edge 5 and vertical angle β are arranged to 4 ° ~ 6 °, preferably 5 °.
Second is that will be provided with threaded hole 6 on the handle of a knife 1.Since cutter is in working angles, the impact force that is subject to compared with
Greatly, easily there is knife phenomenon in cutter, therefore hole 6 is threaded on knife handle 1, and locking cutter is set on cutter chuck
Latch segment, cutter is maintained the lock status under any circumstance with cutter chuck, prevent the generation of knife.Set
It can effectively prevent the appearance for playing knife mark after the threaded hole 6, the finish of surface processing can reach more than Ra3.2.
As shown in Figure 3：The large-scale arcuate member of aircraft is processed using above-mentioned T-shaped cutter, it specifically adds
Work method is as follows：
1）Standby forging：It is spare to being carried out after the appearance and size of forging, material structure, material composition progress passed examination；
2）Part roughing：First in " Z " direction of principal axis feed, each feed step pitch is 3mm, then further around feature side-wall process into
Knife, feed step pitch is 0.5mm, unilateral to stay allowance 2mm, and roughing cutting parameter is：1000 ~ 1200r/min of the speed of mainshaft,
Feed velocity is 500 ~ 600mm/min；
3）Heat treatment：Part after the completion of part roughing is made annealing treatment, whens furnace temperature≤200 DEG C enters stove, is risen after entering stove
Temperature, programming rate≤100 DEG C/h, temperature are warming up to 650 DEG C ± 10 DEG C, when insulation 3 is small after when cooling to≤200 DEG C with the furnace
Come out of the stove；
4）Finishing Parts Machining：It is first 2.8mm in " Z " direction of principal axis feed, each feed step pitch, side wall, which is worked into, meets design drawing
It is required that thickness, finishing cutting parameter be：500 ~ 600r/min of the speed of mainshaft, feed velocity are 100 ~ 120mm/min；
5）Examine：Examine the quality of the production and filter out substandard product.
During roughing in the technique：During roughing：Each feed step pitch can be with 2 ~ 5mm of selected as, then further around part
Side wall processes feed, and feed step pitch is can select 0.5 ~ 1mm, and unilateral to stay allowance can be 1 ~ 3mm.Roughing cutting ginseng
Number is：1000 ~ 1200r/min of the speed of mainshaft, feed velocity are 500 ~ 600mm/min.
In finishing：Each feed step pitch can be 2 ~ 3mm, and side wall is processed in place, and finishing cutting parameter is：Main shaft
500 ~ 600r/min of rotating speed, feed velocity are 100 ~ 120mm/min.
The technique present invention for the ease of detection product and processing makes following experimental comparison, and experiment below is added all
Drawn in the case that work technological parameter is identical.（Tool inclination angle is bigger, and cutter is sharper, but service life can shorten, tool inclination angle
Smaller, cutter side is blunt, service life increase, but bullet knife occurs）.
Thus table can be seen that the T-shaped cutter proposed in the present invention has following clear advantage：Surface quality of workpieces is more
Good, part qualification rate higher, be not in that the situation for playing knife occurs, and the production cycle is shorter.
Thus table can be seen that the part that the technique productions by the present invention go out greatly improves product quality compared to existing.（Step pitch
Smaller, surface quality of workpieces has improvement, but processing efficiency is lower, and step pitch is bigger, and processing efficiency improves, but surface quality is reduced and worked as
It is best to select 3mm and 2.8mm resultant effects）.The present invention by the optimum choice to angle and step distance to greatest extent
Ground improves production and processing efficiency, has stronger practicality.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (9)
1. a kind of large-scale T-shaped knife of arcuate member processing side set of aircraft, it includes handle of a knife, knife neck and cutter hub, the handle of a knife
It is connected by round estrade with knife neck, knife neck connection cutter hub, the shank diameter is more than knife neck and round estrade, handle of a knife, round estrade, knife
Neck is connected with cutter hub in overall T-shaped after one, it is characterised in that：The cutting edge side set of the cutter hub is arranged in the upper of cutter hub
In lower two planes.
A kind of 2. large-scale T-shaped knife of arcuate member processing side set of aircraft according to claim 1, it is characterised in that institute
State and threaded hole is provided with handle of a knife.
3. the large-scale T-shaped knife of arcuate member processing side set of a kind of aircraft according to claim 1 or 2, its feature exist
Be 6 swords or 8 swords or 10 swords in the cutting edge number of the cutter hub, and the cutting edge and horizontal direction angle α are 7 ° ~ 9 °, cutting edge with it is perpendicular
It it is 5 ° ~ 8 ° to angle β.
A kind of 4. large-scale T-shaped knife of arcuate member processing side set of aircraft according to claim 3, it is characterised in that institute
It is 7 ° that cutting edge, which is stated, with horizontal direction angle α, and cutting edge is 5 ° with vertical angle β.
A kind of 5. large-scale arcuate member processing method of aircraft, it is characterised in that：Comprise the following steps
Standby forging：It is spare to being carried out after the appearance and size of forging, material structure, material composition progress passed examination；
Part roughing：First in " Z " direction of principal axis feed, each feed step pitch is 2 ~ 5mm, then further around feature side-wall process into
Knife, feed step pitch is 0.5mm ~ 1mm, unilateral to stay allowance 1mm ~ 3mm；
Heat treatment：Part after the completion of part roughing is made annealing treatment, whens furnace temperature≤200 DEG C, enters stove, heats up after entering stove,
Programming rate≤100 DEG C/h, temperature are warming up to 650 DEG C ± 10 DEG C, when insulation 3 is small after go out when cooling to≤200 DEG C with the furnace
Stove；
Finishing Parts Machining：It is first 2mm ~ 3mm in " Z " direction of principal axis feed, each feed step pitch, side wall, which is worked into, meets design drawing
It is required that thickness；
Examine：Examine the quality of the production and filter out substandard product.
A kind of 6. large-scale arcuate member processing method of aircraft according to claim 5, it is characterised in that：The step
3) feed velocity in is 500 ~ 600mm/min, 1000 ~ 1200r/min of the speed of mainshaft.
A kind of 7. large-scale arcuate member processing method of aircraft according to claim 5, it is characterised in that：The step 5）
Middle feed velocity is 100 ~ 120mm/min, 500 ~ 600r/min of the speed of mainshaft.
A kind of 8. large-scale arcuate member processing method of aircraft according to claim 5, it is characterised in that：It is described slightly to add
Man-hour：First in " Z " direction of principal axis feed, each feed step pitch is 3mm, then processes feed further around feature side-wall, and feed step pitch is
0.5mm, it is unilateral to stay allowance 2mm.
A kind of 9. large-scale arcuate member processing method of aircraft according to claim 5, it is characterised in that：Finishing Parts Machining
When：First in " Z " direction of principal axis feed, each feed step pitch is 2.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711264694.XA CN107931691A (en) | 2017-12-05 | 2017-12-05 | A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711264694.XA CN107931691A (en) | 2017-12-05 | 2017-12-05 | A kind of large-scale arcuate member processing method of aircraft and the T-shaped knife of processing side set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894638A (en) * | 2019-03-20 | 2019-06-18 | 成都飞机工业（集团）有限责任公司 | The cutter of shape in angle is closed in a kind of numerical control processing |
| CN112388039A (en) * | 2019-08-14 | 2021-02-23 | 深圳精匠云创科技有限公司 | Forming tool and inner groove machining method |
| CN113441775A (en) * | 2021-08-04 | 2021-09-28 | 成都市鸿侠科技有限责任公司 | Machining method for large arc-shaped structural part of aircraft and staggered-tooth T-shaped cutter for machining |
| CN114160822A (en) * | 2021-12-09 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Flap slide rail machining process and cutting machining tool |
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| CN201239818Y (en) * | 2008-08-19 | 2009-05-20 | 株洲丰菱汽车零部件制造有限公司 | T type milling cutter |
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| CN104959786A (en) * | 2015-06-17 | 2015-10-07 | 苏州华冲精密机械有限公司 | Thin-walled part machining method |
| CN204975471U (en) * | 2015-09-18 | 2016-01-20 | 浙江新信峰工具有限公司 | High -end hard alloy milling cutter in T type groove |
| CN205464511U (en) * | 2016-04-15 | 2016-08-17 | 哈尔滨汽轮机厂有限责任公司 | Processing blade blade root recess is with crisscross tooth milling cutter |
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| CN201239818Y (en) * | 2008-08-19 | 2009-05-20 | 株洲丰菱汽车零部件制造有限公司 | T type milling cutter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894638A (en) * | 2019-03-20 | 2019-06-18 | 成都飞机工业（集团）有限责任公司 | The cutter of shape in angle is closed in a kind of numerical control processing |
| CN112388039A (en) * | 2019-08-14 | 2021-02-23 | 深圳精匠云创科技有限公司 | Forming tool and inner groove machining method |
| CN113441775A (en) * | 2021-08-04 | 2021-09-28 | 成都市鸿侠科技有限责任公司 | Machining method for large arc-shaped structural part of aircraft and staggered-tooth T-shaped cutter for machining |
| CN114160822A (en) * | 2021-12-09 | 2022-03-11 | 成都市鸿侠科技有限责任公司 | Flap slide rail machining process and cutting machining tool |
| CN114160822B (en) * | 2021-12-09 | 2022-09-13 | 成都市鸿侠科技有限责任公司 | Flap slide rail machining process and cutting machining tool |
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Application publication date: 20180420 |