CN108637606B - Shaft processing technology with deep lumen pore - Google Patents
Shaft processing technology with deep lumen pore Download PDFInfo
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- CN108637606B CN108637606B CN201810486445.3A CN201810486445A CN108637606B CN 108637606 B CN108637606 B CN 108637606B CN 201810486445 A CN201810486445 A CN 201810486445A CN 108637606 B CN108637606 B CN 108637606B
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- 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
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Abstract
The present invention relates to the shaft processing technologys with deep lumen pore, comprising the following steps: S1, inspection；S2, general vehicle one: specifically includes the following steps: S21, light end face, one end centering wherein；S22,47.5 ± 0.1mm of turning φ；S23, cutting guarantee 202 ± 0.2mm of overall length；S24,60 ° of vehicle both ends chamfering；S3, gun drilling；S4, general vehicle two: specifically includes the following steps: S41, thick drilling, obtain pilot hole；S42, again the pilot hole guiding to bore, expand flat-bottom hole with flat bottom bit until 19.5 ± 0.15mm of φ；S43, light end face guarantee 179 ± 0.15mm of hole depth；S5, general vehicle three: light end face, guarantee entire length is 201 ± 0.2mm, by hole 10 ± 0.2mm of φ boring to φ 13~φ 13.21mm, orifice chamfer；S6, numerical control turning: using inner hole boring tool, and control revolving speed is 300~1000r/min, feed rate f=10~100mm/min, 0.05~2.0mm of bite, boring deep lumen pore diameter according to drawing is 28~φ of φ 28.25mm, length 133mm, and guarantees roughness Ra 3.2.The present invention has the advantages that it is high in machining efficiency, product qualification rate is high.
Description
Technical field
The present invention relates to the shaft processing technologys with deep lumen pore.
Background technique
Certain aviation type component, material are steel alloy 30CrMnSiNi2A, and specific structure is as shown in Figure 1, include deep chamber
The small tripe in hole, i.e. mouth is big, and mouth diameters are φ 20mm, and deep lumen pore diameter is φ 28mm, and the length of deep lumen pore is 133mm, deep lumen pore
Distance from bottom end face length is 179mm, and oral area length is 46 ± 0.4mm.Traditional handicraft Scheme Choice turnery processing designs inner hole
Lathe tool, clamping lathe tool 60~70mm of length, along with deep lumen pore length and oral area length, lathe tool knife bar total length about 260mm, together
When consider the aperture oral area φ 20mm evacuation and chip removal, knife bar diameter about φ 13mm, thus internal lathe-tool rotation extending portion point draw ratio be
(260-60)/13 ≈ 15.38 is easy to produce vibration and is played knife due to draw ratio super large in lathe tool turning process, aperture size and thick
Rugosity all not can guarantee.Technique is improved again afterwards, using special warfare --- Electrolyzed Processing, i.e., based in electrolytic process
Anodic solution principle and by means of molding cathode, a kind of process that workpiece is formed by certain shapes and dimensioned,
But Electrolyzed Processing need to use electrode, and electrode is lossy in process, and processing aperture φ 28 is not easy to guarantee, high failure rate is single
Part process time needs 2 to 3 days, Electrolyzed Processing inefficiency.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, provide it is a kind of it is high in machining efficiency, product qualification rate is high
Shaft processing technology with deep lumen pore is solved because of deep lumen pore draw ratio super large, is shaken using conventional borer bring cutter
The problem of dynamic and bullet knife.
The purpose of the present invention is achieved through the following technical solutions: the shaft processing technology with deep lumen pore, including following step
It is rapid:
S1, inspection: checking that the raw material trade mark, blank surface have no significant defect, and checks part drawing number, quality number；
S2, general vehicle one: specifically includes the following steps:
S21, according to drawing requirement light end face, one end centering wherein；
S22,47.5 ± 0.1mm of turning φ；
S23, cutting guarantee 202 ± 0.2mm of overall length；
S24,60 ° of vehicle both ends chamfering；
S3, gun drilling: beating deep hole from the side in non-stop layer hole, guarantees 18 ± 0.1mm of diameter phi, deep 176.5 ± 0.2mm；
S4, general vehicle two: specifically includes the following steps:
S41, according to drawing requirement, the first thick drilling of the hole φ 13mm is reversed end for end centering outer circle φ 47.5mm and is jumped to 10 ± 0.2mm of φ
Dynamic≤0.03mm, bore hole 19.5 ± 0.15mm of φ, deep 80~100mm, obtains pilot hole；
S42, again the pilot hole guiding to bore, expand flat-bottom hole with flat bottom bit until 19.5 ± 0.15mm of φ, depth
179.5±0.5mm；
S43, light end face guarantee 179 ± 0.15mm of hole depth；
S5, general vehicle three: light end face, guarantee entire length is 201 ± 0.2mm, by hole 10 ± 0.2mm of φ boring to 13~φ of φ
13.21mm orifice chamfer；
S6, numerical control turning: using inner hole boring tool, and control revolving speed is 300~1000r/min, feed rate f=10~100mm/
Min, 0.05~2.0mm of bite bore deep lumen pore diameter according to drawing as 28~φ of φ 28.25mm, length 133mm, and
Guaranteeing that deep lumen pore adds oral area length overall length is 179 ± 0.5mm, and oral area length is 46 ± 0.4mm and roughness Ra 3.2.
S7, boring oral area hole to φ 20mm.
Further, in step S41, the boring cutter for borehole bores guide hole.
Further, in step S42, reaming Morse taper shank flat twist drill reaming to 19.5 ± 0.15mm of φ.
Further, in step S6, further include the steps that being detected with 30 inside callipers of φ after bore hole.
Further, in step S6, the inner hole boring tool includes knife handle, knife bar and blade, one end of the knife bar and knife
Handle connection, the other end are equipped with tool apron, and the blade is mounted on tool apron, the knife handle and knife bar be whole hard alloy be ground and
At integrated formed structure, the cross section profile of the knife bar is made of the circular arc of two sections of identical sizes, and the circular arc is minor arc, institute
The installation direction for stating blade is identical as the short-axis direction of knife bar cross section profile, length L and the knife bar cross section profile of the knife bar
The ratio between long axis a: 8≤L/a≤12.
Further, the angle β between the rake face of the blade and the front end face of tool apron is between 91 °~100 °.
Further, the length of the knife bar is 185mm, and the long axis a of the knife bar is 18.03mm, the knife bar it is short
Axis b is 13mm, and the radius of the circular arc is 9.5mm, and the distance of center circle of two sections of circular arcs is 6mm.
Further, the knife handle is column construction, and the diameter of knife handle is greater than the long axis a of knife bar.
Further, the knife bar and knife handle eccentric setting.
Further, the knife handle and knife bar are made of cemented carbide material.
The invention has the following advantages that
1, single-piece work of the invention only needs 6 to 7 hours, compared to Electrolyzed Processing, greatly improves production efficiency,
Electrolyzed Processing is avoided simultaneously because of export license, and aperture is not easy the problem of guaranteeing, the qualification rate of product processing is 98% or more, completely
Sufficient production requirement.
2, it is processed with inner hole boring tool, cooperates corresponding cutting parameter, when avoiding boring depth lumen pore, vibration cutting (playing knife) is made
At inner hole aperture and roughness it is overproof, meet part depth lumen pore product technology requirement.
3, inner hole boring tool of the invention, lever structure, which uses, is similar to oval structure, that is, uses cross section profile for two sections
Circular arc, as far as possible close to oral area bore dia, short axle minimizes long axis, the installation direction of blade and the short axle of knife bar cross section profile
Direction is identical, so that long axis direction is to cut main Impact direction, short-axis direction is that stress is smaller and the cutter diametrically side of feeding
To, both in view of cutter can extend into the function of guarantee bore hole and chip removal in oral area hole, it is contemplated that cutter integral rigidity, so that
It is small that cutter vibrates bullet knife amount in process, while by reducing cutting feed rate and the depth of cut, may make boring with tool
The problem of vibration bullet knife, is thoroughly resolved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of product to be processed；
Fig. 2 is the component structural schematic diagram of general Che Yihou；
Fig. 3 is the component structural schematic diagram after gun drilling；
Fig. 4 is the component structural schematic diagram of general Che Erhou；
Fig. 5 is the component structural schematic diagram of general Che Sanhou；
Fig. 6 is the structural schematic diagram of inner hole boring tool of the present invention；
Fig. 7 is in Fig. 6 along A-A schematic cross-sectional view；
In figure: 1- knife handle, 2- knife bar, 3- tool apron, 4- blade.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
Shaft processing technology with deep lumen pore, comprising the following steps:
S1, inspection: checking that the raw material trade mark, blank surface have no significant defect, and checks part drawing number, quality number；
S2, general vehicle one: specifically includes the following steps:
S21, according to drawing requirement light end face, one end centering wherein；
S22,47.5 ± 0.1mm of turning φ；
S23, cutting guarantee 202 ± 0.2mm of overall length；
S24,60 ° of vehicle both ends chamfering, obtain components as shown in Figure 2；
S3, gun drilling: beating deep hole from the side in non-stop layer hole, guarantees 18 ± 0.1mm of diameter phi, deep 176.5 ± 0.2mm,
Obtain components as shown in Figure 3；
S4, general vehicle two: specifically includes the following steps:
S41, according to drawing requirement, the first thick drilling of the hole φ 13mm is reversed end for end centering outer circle φ 47.5mm and is jumped to 10 ± 0.2mm of φ
Dynamic≤0.03mm, bore hole 19.5 ± 0.15mm of φ, deep 80~100mm, obtains pilot hole；
S42, again the pilot hole guiding to bore, expand flat-bottom hole with flat bottom bit until 19.5 ± 0.15mm of φ, hole depth
179.5±0.5mm；
S43, light end face guarantee 179 ± 0.15mm of hole depth, obtain components as shown in Figure 4；
S5, general vehicle three: light end face, guarantee entire length is 201 ± 0.2mm, by hole 10 ± 0.2mm of φ boring to 13~φ of φ
13.21mm, orifice chamfer obtain components as shown in Figure 5；
S6, numerical control turning: using inner hole boring tool, and control revolving speed is 300~1000r/min, feed rate f=10~100mm/
Min, 0.05~2.0mm of bite bore deep lumen pore diameter according to drawing as 28~φ of φ 28.25mm, length 133mm, and
Guaranteeing that deep lumen pore adds oral area length overall length is 179 ± 0.5mm, and oral area length is 46 ± 0.4mm and roughness Ra 3.2, is obtained
Product, as shown in Figure 1.
S7, boring oral area hole to φ 20mm.
Further, in step S41, the boring cutter for borehole bores guide hole.
Further, in step S42, reaming Morse taper shank flat twist drill reaming to 19.5 ± 0.15mm of φ.
Further, in step S6, further include the steps that being detected with 30 inside callipers of φ after bore hole.
Further, in step S6, as shown in Figure 6 and Figure 7, the inner hole boring tool includes knife handle 1, knife bar 2 and blade 4,
One end of the knife bar 2 is connect with knife handle 1, and the other end is equipped with tool apron 3, and the blade 4 is mounted on tool apron 3, preferably,
Blade 4 is locked on tool apron 3 by screw, can be after blade 4 wears and scraps, the replacement easy to disassemble of blade 4, and knife handle 1
It is increased substantially with the utilization rate of knife bar 2, the knife handle 1 is to be integrally formed to tie made of whole hard alloy grinding with knife bar 2
The cross section profile of structure, the knife bar 2 is made of the circular arc of two sections of identical sizes, and the circular arc is minor arc, the minor arc i.e. circular arc institute
Corresponding central angle is less than 180 °, and the installation direction of the blade 4 is identical as the short-axis direction of 2 cross section profile of knife bar, the knife
The length L of bar 2 and the ratio between the long axis a: 8≤L/a≤12 of 2 cross section profile of knife bar.
Further, as shown in fig. 6, angle β between the rake face of the blade 4 and the front end face of tool apron 3 91 °~
Between 100 °, when processing deep lumen pore, the point of a knife of blade 4 is contacted with workpiece to be machined, prevents from generating cutter when bore hole along axial
Resistance extend the service life of blade 4 so as to be effectively reduced 4 local temperature of blade.
Further, in the present embodiment, preferably, the length of the knife bar 2 is 185mm, the length of the knife bar 2
Axis a is 18.03mm, and the short axle b of the knife bar 3 is 13mm, and the radius of the circular arc is 9.5mm, and the distance of center circle of two sections of circular arcs is
6mm。
Further, the knife handle 1 is column construction, and the diameter of knife handle 1 is greater than the long axis a of knife bar 2, due to knife handle 1
For machine tool chief axis retaining part, knife handle 1 simultaneously does not have to protrude into oral area hole, and it is steady can to improve clamping by increasing the diameter of knife handle 1
It is qualitative.
Further, as shown in fig. 6, the knife bar 2 and 1 eccentric setting of knife handle, knife bar 2 are biased to it in oral area hole always
Chip removal is convenient in the side of axis.
Further, the knife handle 1 and knife bar 2 are made of cemented carbide material.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. the shaft processing technology with deep lumen pore, it is characterised in that: the following steps are included:
S1, inspection: checking that the raw material trade mark, blank surface have no significant defect, and checks part drawing number, quality number；
S2, general vehicle one: specifically includes the following steps:
S21, according to drawing requirement light end face, one end centering wherein；
S22,47.5 ± 0.1mm of turning φ；
S23, cutting guarantee 202 ± 0.2mm of overall length；
S24,60 ° of vehicle both ends chamfering；
S3, gun drilling: beating deep hole from the side in non-stop layer hole, guarantees 18 ± 0.1mm of diameter phi, deep 176.5 ± 0.2mm；
S4, general vehicle two: specifically includes the following steps:
S41, according to drawing requirement, the hole φ 13mm first thick drilling to 10 ± 0.2mm of φ, reverse end for end centering outer circle φ 47.5mm bounce≤
0.03mm, bore hole 19.5 ± 0.15mm of φ, deep 80~100mm, obtain pilot hole；
S42, again the pilot hole guiding to bore expand flat-bottom hole until 19.5 ± 0.15mm of φ with flat bottom bit, and depth 179.5 ±
0.5mm；
S43, light end face guarantee 179 ± 0.15mm of hole depth；
S5, general vehicle three: light end face, guarantee entire length is 201 ± 0.2mm, by hole 10 ± 0.2mm of φ boring to 13~φ of φ
13.21mm orifice chamfer；
S6, numerical control turning: use inner hole boring tool, control revolving speed be 300~1000r/min, feed rate f=10~100mm/min,
0.05~2.0mm of bite, boring deep lumen pore diameter according to drawing is 28~φ of φ 28.25mm, length 133mm, and is guaranteed
Deep lumen pore distance from bottom end face length is 179 ± 0.5mm, and oral area length is 46 ± 0.4mm and roughness Ra 3.2；
S7, boring oral area hole to φ 20mm；
In step S6, the inner hole boring tool includes knife handle (1), knife bar (2) and blade (4), one end of the knife bar (2) and knife handle
(1) it connects, the other end is equipped with tool apron (3), and the blade (4) is mounted on tool apron (3), and the knife handle (1) is whole with knife bar (2)
Integrated formed structure made of body hard-alloy grinding, the cross section profile of the knife bar (2) by two sections of identical sizes circular arc group
At, and the circular arc is minor arc, the installation direction of the blade (4) is identical as the short-axis direction of knife bar (2) cross section profile, the knife
The length L of bar (2) and the ratio between the long axis a: 8≤L/a≤12 of knife bar (2) cross section profile.
2. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: in step S41, the bore hole
Guide hole is bored with boring cutter.
3. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: in step S42, reaming is not with
Family name's taper shank flat twist drill reaming is to 19.5 ± 0.15mm of φ.
4. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: in step S6, bore hole is finished
After further include the steps that being detected with 30 inside callipers of φ.
5. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: the preceding knife of the blade (4)
Angle β between face and the front end face of tool apron (3) is between 91 °~100 °.
6. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: the length of the knife bar (2)
It is 18.03mm for 185mm, the long axis a of the knife bar (2), the short axle b of the knife bar (3) is 13mm, and the radius of the circular arc is
9.5mm, the distance of center circle of two sections of circular arcs are 6mm.
7. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: the knife handle (1) is cylindricality
Structure, and the diameter of knife handle (1) is greater than the long axis a of knife bar (2).
8. the shaft processing technology of band depth lumen pore according to claim 7, it is characterised in that: the knife bar (2) and knife handle
(1) eccentric setting.
9. the shaft processing technology of band depth lumen pore according to claim 1, it is characterised in that: the knife handle (1) and knife bar
(2) it is made of cemented carbide material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810486445.3A CN108637606B (en) | 2018-05-21 | 2018-05-21 | Shaft processing technology with deep lumen pore |
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|---|---|---|---|
| CN201810486445.3A CN108637606B (en) | 2018-05-21 | 2018-05-21 | Shaft processing technology with deep lumen pore |
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| CN108637606A CN108637606A (en) | 2018-10-12 |
| CN108637606B true CN108637606B (en) | 2019-11-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110216431A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of 1000MW Steam Turbine jiggering gear hole |
| CN111872631A (en) * | 2020-05-29 | 2020-11-03 | 贵州新安航空机械有限责任公司 | Machining method for deep-hole slender shaft parts |
| CN114654174A (en) * | 2022-04-19 | 2022-06-24 | 中国航发动力股份有限公司 | Method for machining inner molded surface of hollow shaft part with large length-diameter ratio |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101323025A (en) * | 2008-06-30 | 2008-12-17 | 王建波 | Changeable one-shot forming edge-neatening rose reamer and process for manufacturing the same |
| CN101337287A (en) * | 2008-08-21 | 2009-01-07 | 河南宇建矿业技术有限公司 | Cylinder boring device and method for processing cylinder using the device |
| CN103028752B (en) * | 2012-11-28 | 2015-06-10 | 湖北三环锻压设备有限公司 | Processing method for phi 52H7*850 deep hinge pin keyhole at matched position of parts of different materials |
| AT15068U1 (en) * | 2015-12-22 | 2016-12-15 | Ceratizit Austria Gmbh | Cutting tool base body |
| CN206425567U (en) * | 2016-12-15 | 2017-08-22 | 宁夏共享模具有限公司 | A kind of process tool of big depth-to-width ratio groove |
| CN106944798A (en) * | 2017-03-13 | 2017-07-14 | 镇江中船瓦锡兰螺旋桨有限公司 | Propeller lifting eye processing technology and the positioning milling cutter group of processing |
| CN107186228B (en) * | 2017-06-30 | 2019-07-09 | 贵州凯星液力传动机械有限公司 | A kind of superdeep holes precision cutting tool for boring processing method and high accurate hole processing method |
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