CN106853541A - A kind of machining path control method based on mesh cylinder section - Google Patents
A kind of machining path control method based on mesh cylinder section Download PDFInfo
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- CN106853541A CN106853541A CN201610997599.XA CN201610997599A CN106853541A CN 106853541 A CN106853541 A CN 106853541A CN 201610997599 A CN201610997599 A CN 201610997599A CN 106853541 A CN106853541 A CN 106853541A
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- 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
- B23C3/13—Surface milling of plates, sheets or strips
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Abstract
The present invention provides a kind of machining path control method based on mesh cylinder section, and its step is as follows：The lightening core of three pieces of wallboards is processed simultaneously using bull mirror image milling equipment；Roughing is carried out to the cylinder all grids of section using bull mirror image milling equipment, cylinder segment mesh is processed with 2 row's grids as one group, it is ring using the processing sequence from low-angle to wide-angle in the circumferencial direction of cylinder section in cylinder section longitudinal direction using the alternately order of processing from middle part to direction of both ends；The cylinder all grids of section are finished using bull mirror image milling equipment, it is longitudinal using the order processed to upper and lower ends from the middle part of cylinder section in cylinder section, use the processing sequence from low-angle to wide-angle in the circumferencial direction of cylinder section；Processing for bogging down area is processed using the machining path that ring lower limit area after first longitudinal direction bogging down area processing processes.The present invention realizes high accuracy, the high efficiency processing and manufacturing of mesh cylinder section after shaping, and shortens the Product processing cycle.
Description
Technical field
The present invention relates to a kind of system For Machine-building Process, and in particular to the important component of carrier rocket --- tank
Mesh cylinder section, for the machining path control method of grid, lightening core and bogging down area.
Background technology
With large thin-wall band grid tank cylinder section as object, Rocket tank cylinder section has external diameter, and greatly, highly high, wall thickness is thin
Feature, such part contour dimension relative cross-section size is big, and relative stiffness is low；The design feature of thin-wall part determines it in cutting
In process, easily there is cutting vibration and be easy to unstability, as part wall thickness is constantly thinning, workpiece relative rigidity is increasingly
It is low, it is susceptible to deformation, it is impossible to ensure processing stability and crudy, part can be caused to process when serious cannot be carried out.
China proposes requirements at the higher level, traditional wallboard roll bending, milling to Rocket tank product quality reliability in recent years
Grid, it is welded into a tin tank cylinder section manufacturing process and cannot meets development needs, therefore, it is to meet to grind to implement tank overall processing
The inevitable choice of demand processed.
The content of the invention
It is an object of the invention to provide a kind of machining path control method based on mesh cylinder section, it can reduce processing
During the influence processed to part of Stress Release, realize such part high-precision, high efficiency processing and manufacturing.
Realize the technical scheme of the object of the invention：A kind of machining path control method based on mesh cylinder section, described in it
Mesh cylinder Duan Yousan block wallboards, every piece of wallboard longitudinally has a m grid, and circumferencial direction has n grid, and total quantity is n × m, n and
M is natural number, and the mitigation hole number between grid is It is individual, downset areas be divided into ring sink with
The sagging two parts in longitudinal direction, specific machining path rate-determining steps are as follows：
Step one：Mitigate hole machined
The lightening core of three pieces of wallboards is processed simultaneously using bull mirror image milling equipment, rotating speed n=5000~8000r/
Min, feeds F=500~1000mm/min, cutting-in ap=5~8mm；Numbered according to grid in the longitudinal direction of cylinder section and circumferencial direction
Order from small to large is processed, i.e. the hole serial number of y row xth row processingY tables
Show lightening core longitudinal direction number sequence number, x represents lightening core ring sequence number；
Step 2：Grid roughing
Roughing is carried out to the cylinder all grids of section using bull mirror image milling equipment, rotating speed n=4000~6000r/min enters
To F=1500~2000mm/min, cutting-in ap=5~8mm；Cylinder segment mesh is processed with 2 row's grids as one group, in cylinder section
Longitudinal direction, using the alternately order of processing from middle part to direction of both ends, is that ring is used from low-angle to big in the circumferencial direction of cylinder section
The processing sequence of angle, i.e. q row pth row processing grid be
Step 3：Grid is finished
The cylinder all grids of section are finished using bull mirror image milling equipment, rotating speed n=8000~10000r/min enters
To F=8000~10000mm/min, cutting-in ap=5~8mm；The rough machined processing sequence of grid is used to reduce machining deformation,
In cylinder section longitudinal direction using the order processed to upper and lower ends from the middle part of cylinder section, used from low-angle to big in the circumferencial direction of cylinder section
The processing sequence of angle, i.e. k-th processing grid be
Step 4：Bogging down area processes
Processing for bogging down area is added using the machining path that ring lower limit area after first longitudinal direction bogging down area processing processes
Work.
A kind of machining path control method based on mesh cylinder section as described above, the mitigation hole machined described in its step one
Required precision is ± 0.1mm, mitigates hole depth and processes at twice in place.
A kind of machining path control method based on mesh cylinder section as described above, the grid described in its step 2 slightly adds
Work, its three main tappings are processed to three pieces of all grids of wallboard simultaneously, first process middle 2 row's grids, secondly process middle
The row's grid of end on the lower side 2, is processed successively between the row's grid of end on the upper side 2, work in-process；18~the 20mm of tool diameter for being used,
Cutter fillet R3.
A kind of machining path control method based on mesh cylinder section as described above, the grid finishing described in its step 3
Work, its three main tappings are processed to three pieces of all grids of wallboard successively respectively, specific to monolithic wallboard, first process in wallboard
Between lower body part area partially, first time machining area, second of the end part in post-processing upper middle machining area processes in three times
In place；18~the 20mm of tool diameter for being used, cutter fillet R3, requirement on machining accuracy are ± 0.1mm.
A kind of machining path control method based on mesh cylinder section as described above, the bogging down area described in its step 4 adds
Work, it is processed to sagging being sunk with ring in longitudinal direction of each wallboard respectively, 18~20mm of tool diameter, cutter fillet R3,
Requirement on machining accuracy is ± 0.1mm.
Effect of the invention is that：A kind of machining path control method based on mesh cylinder section of the present invention, realizes
The high accuracy of mesh cylinder section, high efficiency processing and manufacturing after shaping, and shorten the Product processing cycle.
Brief description of the drawings
Fig. 1 is tank cylinder segment structure schematic diagram；
Fig. 2 is one piece of wall panel structure schematic diagram of tank cylinder section；
Fig. 3 is tank cylinder section machining path schematic diagram；
In figure：1. lightening core；2. grid.
Specific embodiment
Further is made to a kind of machining path control method based on mesh cylinder section of the present invention below in conjunction with the accompanying drawings
Description.
A kind of machining path control method based on mesh cylinder section of the present invention, it is as depicted in figs. 1 and 2, described
Mesh cylinder Duan Yousan block wallboards, every piece of wallboard longitudinally has a m grid, and circumferencial direction has n grid, and total quantity is n × m, n and
M is natural number, and the mitigation hole number between grid is It is individual, downset areas be divided into ring sink with
The sagging two parts in longitudinal direction
As shown in figure 3, specific machining path rate-determining steps are as follows：
Step one：Mitigate hole machined
Three pieces of lightening cores of wallboard 1 are processed simultaneously using bull mirror image milling equipment, rotating speed n=5000~8000r/
Min (such as 5000r/min, 6700r/min or 8000r/min), feeding F=500~1000mm/min is (for example：500mm/
Min, 800mm/min or 1000mm/min), cutting-in ap=5~8mm is (for example：5mm, 6mm or 8mm)；Cylinder section longitudinal a and
Circumferencial direction b is processed according to the order that grid is numbered from small to large, i.e. the hole serial number of y row xth row processingY represents lightening core longitudinal direction number sequence number, and x represents lightening core ring sequence
Number；
Above-mentioned lightening core requirement on machining accuracy is ± 0.1mm, mitigates hole depth and processes at twice in place.(for example：Lightening core
Diameter 16mm, skin thickness 5mm at lightening core, requirement on machining accuracy be ± 0.1mm, mitigate hole depth be worked at twice
Position, the first knife working depth is 5mm, the second knife working depth 3.5mm.)
Step 2：Grid roughing
Roughing, rotating speed n=4000~6000r/min (examples are carried out to the cylinder all grids 2 of section using bull mirror image milling equipment
Such as 4000r/min, 5000r/min or 6000r/min), feeding F=1500~2000mm/min is (for example：1500mm/min、
1700mm/min or 2000mm/min), cutting-in ap=5~8mm is (for example：5mm, 6mm or 8mm)；By cylinder segment mesh with 2 row's grids
For one group is processed, the order alternately processed from middle part to two ends a1, a2 direction is used in cylinder section longitudinal direction, in the circumference of cylinder section
Direction is that ring b is using the grid that the processing sequence from low-angle to wide-angle, i.e. q row pth row are processed
Above-mentioned grid roughing, its three main tappings are processed to three pieces of all grids of wallboard simultaneously, first process middle 2
Row's grid, secondly processes the row's grid of end on the lower side 2 between the row's grid of upper middle end 2, work in-process, is processed successively；Used
16~20mm of tool diameter (for example：16mm, 18mm or 20mm), cutter fillet R3.(for example：Three main tappings are simultaneously to three
The all grids of block wallboard are processed, and first process middle 2 row's grids, secondly processing row's grid of upper middle end 2, between work in-process
The row's grid of end on the lower side 2, is processed, working depth 4.5mm, tool diameter 20mm successively, cutter fillet R3.)
Step 3：Grid is finished
The cylinder all grids of section are finished using bull mirror image milling equipment, rotating speed n=8000~10000r/min (examples
Such as 5000r/min, 6700r/min or 8000r/min), feeding F=8000~10000mm/min is (for example：500mm/min、
800mm/min or 1000mm/min), cutting-in ap=5~8mm is (for example：5mm, 6mm or 8mm)；Net is used to reduce machining deformation
The rough machined processing sequence of lattice, in cylinder section longitudinal direction using the order processed to upper and lower ends from the middle part of cylinder section, in the circumference of cylinder section
Direction is using the processing sequence from low-angle to wide-angle, the i.e. grid of k-th processing
Above-mentioned grid finishing, its three main tappings are processed to three pieces of all grids of wallboard successively respectively, specific to
Monolithic wallboard, first processes wallboard lower middle end subregion, first time machining area, post-processing upper middle end part second
Secondary machining area, processes in place in three times；16~the 20mm of tool diameter for being used is (for example：16mm, 18mm or 20mm), cutter
Fillet R3, requirement on machining accuracy is ± 0.1mm.
Step 4：Bogging down area processes
The processing of B1, B2 is processed in processing for bogging down area using ring lower limit area after first longitudinal direction bogging down area A1, A2 processing
Path is processed.
Bogging down area processing described in step 4, it is processed to sagging being sunk with ring in longitudinal direction of each wallboard respectively,
16~20mm of tool diameter is (for example：16mm, 18mm or 20mm), cutter fillet R3, requirement on machining accuracy is ± 0.1mm.
Claims (5)
1. a kind of machining path control method based on mesh cylinder section, described mesh cylinder Duan Yousan block wallboards, every piece of wallboard is indulged
To there is m grid, circumferencial direction has n grid, and total quantity is n × m, and n and m is natural number, the mitigation hole count between grid
Measure and beIndividual, downset areas are divided into ring and sink and the sagging two parts in longitudinal direction, it is characterised in that：Should
Method machining path rate-determining steps are as follows：
Step one：Mitigate hole machined
Three pieces of lightening cores of wallboard (1) are processed simultaneously using bull mirror image milling equipment, rotating speed n=5000~8000r/
Min, feeds F=500~1000mm/min, cutting-in ap=5~8mm；In the longitudinal direction (a) of cylinder section and circumferencial direction (b) according to net
Lattice numbering order from small to large is processed, i.e. the hole serial number of y row xth row processing
Y represents lightening core longitudinal direction number sequence number, and x represents lightening core ring sequence number；
Step 2：Grid roughing
Roughing, rotating speed n=4000~6000r/min, feeding are carried out to the cylinder all grids (2) of section using bull mirror image milling equipment
F=1500~2000mm/min, cutting-in ap=5~8mm；Cylinder segment mesh is processed with 2 row's grids as one group, in cylinder Duan Zong
It is ring (b) using from small in the circumferencial direction of cylinder section to using the alternately order of processing from middle part to two ends (a1, a2) direction
Angle to wide-angle processing sequence, i.e., q row pth row processing grid be
Step 3：Grid is finished
The cylinder all grids of section are finished using bull mirror image milling equipment, rotating speed n=8000~10000r/min feeds F
=8000~10000mm/min, cutting-in ap=5~8mm；The rough machined processing sequence of grid is used to reduce machining deformation,
Cylinder section longitudinally using the order processed to upper and lower ends from cylinder section middle part, is used from low-angle to big angle in the circumferencial direction of cylinder section
The processing sequence of degree, i.e. k-th processing grid be
Step 4：Bogging down area processes
The processing of (B1, B2) is processed in processing for bogging down area using ring lower limit area after first longitudinal direction bogging down area (A1, A2) processing
Path is processed.
2. it is according to claim 1 it is a kind of based on mesh cylinder section machining path control method, it is characterised in that：Step one
Described lightening core requirement on machining accuracy is ± 0.1mm, mitigates hole depth and processes at twice in place.
3. it is according to claim 1 it is a kind of based on mesh cylinder section machining path control method, it is characterised in that：Step 2
Described grid roughing, its three main tappings are processed to three pieces of all grids of wallboard simultaneously, first process middle 2 row's nets
Lattice, secondly process the row's grid of end on the lower side 2 between the row's grid of upper middle end 2, work in-process, are processed successively；The knife for being used
Tool 16~20mm of diameter, cutter fillet R3.
4. it is according to claim 1 it is a kind of based on mesh cylinder section machining path control method, it is characterised in that：Step 3
Described grid finishing, its three main tappings are processed to three pieces of all grids of wallboard successively respectively, specific to monolithic wall
Plate, first processes wallboard lower middle end subregion, and first time machining area, post-processing upper middle end part processes for second
Region, processes in place in three times；16~the 20mm of tool diameter for being used, cutter fillet R3, requirement on machining accuracy for ±
0.1mm。
5. it is according to claim 1 it is a kind of based on mesh cylinder section machining path control method, it is characterised in that：Step 4
Described bogging down area processing, it is processed to sagging being sunk with ring in longitudinal direction of each wallboard respectively, tool diameter 16~
20mm, cutter fillet R3, requirement on machining accuracy are ± 0.1mm.
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| CN201610997599.XA CN106853541B (en) | 2016-11-14 | 2016-11-14 | A kind of machining path control method based on mesh cylinder section |
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| CN201610997599.XA CN106853541B (en) | 2016-11-14 | 2016-11-14 | A kind of machining path control method based on mesh cylinder section |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110703685A (en) * | 2019-11-08 | 2020-01-17 | 中国航空制造技术研究院 | Skin mirror image milling cutter path self-adaptive adjusting method and device |
| CN113894334A (en) * | 2021-11-05 | 2022-01-07 | 四川航天长征装备制造有限公司 | Large thin-wall shell grid skin thickness error compensation processing method |
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| CN104439968A (en) * | 2014-11-24 | 2015-03-25 | 首都航天机械公司 | Integral manufacturing method for tube section of large storage box based on numerical control mirror milling |
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| GB1047454A (en) * | 1900-01-01 | |||
| GB1512498A (en) * | 1975-12-31 | 1978-06-01 | American Defibrator | Static discharge device and method for fibre discharge from a pressurized digester |
| CN103639668A (en) * | 2013-12-09 | 2014-03-19 | 天津大学 | Rapid manufacturing method used for outer storing box gridding wallboard of aerospace craft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110703685A (en) * | 2019-11-08 | 2020-01-17 | 中国航空制造技术研究院 | Skin mirror image milling cutter path self-adaptive adjusting method and device |
| CN113894334A (en) * | 2021-11-05 | 2022-01-07 | 四川航天长征装备制造有限公司 | Large thin-wall shell grid skin thickness error compensation processing method |
| CN113894334B (en) * | 2021-11-05 | 2023-06-30 | 四川航天长征装备制造有限公司 | Large thin-wall shell grid skin thickness error compensation processing method |
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