CN109304505A - A kind of rough milling method of 3 d impeller - Google Patents
A kind of rough milling method of 3 d impeller Download PDFInfo
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- CN109304505A CN109304505A CN201811211235.XA CN201811211235A CN109304505A CN 109304505 A CN109304505 A CN 109304505A CN 201811211235 A CN201811211235 A CN 201811211235A CN 109304505 A CN109304505 A CN 109304505A
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- impeller
- runner
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- blank
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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
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Abstract
The invention discloses a kind of rough milling methods of 3 d impeller, comprising: the three-dimensional model of 3 d impeller is constructed by application software；According to the curvature of curved surface of the runner on the three-dimensional model and/or blade twist angle, a runner is divided into several machining areas；Respectively on each machining area curvature of curved surface and/or blade twist angle analyze, determine machining angle corresponding to each machining area；The machining angle of cutter on boring table is respectively set to machining angle corresponding to each machining area；By the cutter after setting machining angle, the region on impeller blank corresponding with each machining area is processed respectively, makes to form the runner on the impeller blank, completes the rough milling of the 3 d impeller.By the present invention in that being processed instead of five-axis NC machine center to impeller blank with boring table, the processing cost of 3 d impeller is reduced.
Description
Technical field
The invention belongs to compressor 3 d impeller processing technique fields, and in particular to a kind of rough milling side of 3 d impeller
Method.
Background technique
For 3 d impeller as the key part in the turbomachinery of the industries such as aviation, machinery, chemical industry, application is more and more wider
It is general, wherein the 3 d impeller of centrifugal compressor is usually successively to be welded after turning, Milling Process with wheel cap by forging blank material
It forms.
Since the blade of 3 d impeller is three-dimensional twisted curved surface, Milling Process is mainly completed on Five-axis NC Machining Center,
And the equipment purchase cost of Five-axis NC Machining Center and its use unit price hourly are all costly, while 3 d impeller milling
Material removal amount is larger in the process, and the process-cycle is longer, therefore causes the processing cost of 3 d impeller high.
Summary of the invention
Place in view of the deficiency of the prior art, the present invention provides a kind of rough milling sides of 3 d impeller
Method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of rough milling method of 3 d impeller, comprising:
The three-dimensional model of 3 d impeller is constructed by application software；
According to the curvature of curved surface of the runner on the three-dimensional model and/or blade twist angle, a runner is drawn
It is divided into several machining areas；
Respectively on each machining area curvature of curved surface and/or blade twist angle analyze, determine each
Machining angle corresponding to a machining area；
The machining angle of cutter on boring table is respectively set to processing corresponding to each machining area
Angle；
By the cutter after setting machining angle, respectively on impeller blank corresponding with each machining area
Region processed, make to form the runner on the impeller blank, complete the rough milling of the 3 d impeller.
A kind of rough milling method of 3 d impeller provided by the invention, passes through the curved surface according to the runner on three-dimensional model
One runner is divided into several machining areas, and determined corresponding to each machining area by curvature and/or blade twist angle
Machining angle；Impeller blank is processed by setting the cutter after machining angle on boring table, to complete three
The rough milling of first impeller.By the present invention in that having replaced five-axis NC machine center to process impeller blank with boring machine, lead to
It crosses and is provided with the cutter of different machining angles and carries out runner processing, make to have used in each machining area the most suitable
It is more accurate not only to rough mill rear channel size, but also adds per hour from equipment purchase cost and equipment for the machining angle of cutter
From the aspect of work cost, the manufacturing cost of 3 d impeller is considerably reduced.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the rough milling method of 3 d impeller of exemplary embodiment of the present；
Fig. 2 is the flow diagram of the rough milling method of another 3 d impeller of exemplary embodiment of the present；
Fig. 3 is that the runner of exemplary embodiment of the present is divided the schematic diagram after machining area；
Fig. 4 is the flow diagram of the rough milling method of another 3 d impeller of exemplary embodiment of the present；
Fig. 5 is the flow diagram of the rough milling method of another another 3 d impeller of exemplary embodiment of the present；
Fig. 6 is a kind of module connection diagram of the rough milling device of 3 d impeller of exemplary embodiment of the present；
Fig. 7 is the module connection signal of the rough milling device of another 3 d impeller of exemplary embodiment of the present
Figure；
Fig. 8 is the module connection signal of the rough milling device of another 3 d impeller of exemplary embodiment of the present
Figure；
Fig. 9 is the module connection signal of the rough milling device of another another 3 d impeller of exemplary embodiment of the present
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of rough milling method of 3 d impeller, comprising:
S100, the three-dimensional model that 3 d impeller is constructed by application software；
S200, curvature of curved surface and/or blade twist angle according to the runner on three-dimensional model, a runner is divided into
Several machining areas；
S300, respectively on each machining area curvature of curved surface and/or blade twist angle analyze, determine each
Machining angle corresponding to a machining area；
S400, the machining angle of the cutter on boring table is respectively set to processing corresponding to each machining area
Angle；
S500, by setting machining angle after cutter, respectively on impeller blank corresponding with each machining area
Region is processed, and is made to form the runner on impeller blank, is completed the rough milling of 3 d impeller.
The embodiment of the present invention processes impeller blank instead of five-axis NC machine center using boring table, together
When by being provided with the cutter of different machining angles carry out runner processing, make to have used in each machining area the most suitable
It is more accurate not only to rough mill rear channel size for the machining angle of the cutter of conjunction, but also from equipment purchase cost and equipment per small
When processing cost from the aspect of, considerably reduce the manufacturing cost of 3 d impeller.
As a preferred embodiment, as shown in Figures 2 and 3, according to the curvature of curved surface of the runner on three-dimensional model and/or
Blade twist angle a, when runner is divided into several machining areas, comprising:
S201, the origin that the impeller center on three-dimensional model is set as to mould processing coordinate system, and sit mould processing
The direction for marking system is consistent with the direction of the Cutter coordinate system of boring table, i.e., the Y-axis of three-dimensional model is perpendicular to table surface
And direction is upward；
S202, on three-dimensional model runner and/or blade analyze, according to similar surface curvature
Size and direction and/or similar blade twist angle divide runner, draw runner along the Z-direction of three-dimensional model
It is divided into several machining areas, for example, passing through analysis as shown in figure 3, runner is divided into tri- machining areas of AB, BC, CD
The machining angle of tri- machining areas of AB, BC, CD, and can determine that the processing direction vector difference of tri- machining areas of AB, BC, CD
For I, J, K.
As a preferred embodiment, according to the runner on three-dimensional model curvature of curved surface and/or blade twist angle
Degree a, when runner is divided into several machining areas, further includes:
The cutting-in that impeller blank is cut according to the depth of the corresponding runner on each machining area and cutter
Size calculates separately out the processing times that cutter carries out layering processing to each machining area.
As a preferred embodiment, according to the runner on three-dimensional model curvature of curved surface and/or blade twist angle
Degree a, when runner is divided into several machining areas, further includes:
According to the curvature of curved surface of the corresponding runner of each machining area and blade twist angle and each machining area
The machining angle of corresponding cutter determines the diameter for processing the corresponding cutter of each machining area respectively.
As a preferred embodiment, as shown in figure 4, by setting machining angle after cutter, respectively to it is each
When region on the corresponding impeller blank of machining area is processed, include:
S501, being placed on impeller blank level on boring table, carry out machining angle setting for cutter respectively；
S502, according to the range of work of each machining area, cutter is set in the corresponding working height of each machining area
And width range；
S503, region corresponding with each machining area on impeller blank progress subregion is added respectively by cutter
Work completes first of runner on impeller blank；
S504, by the way that impeller blank is rotated on boring table, rotate impeller blank successively to each stream
The region processed needed for road；
S505, pass through cutter in each required region processed to the progress subregion processing of impeller blank, make leaf
It takes turns and forms multiple runners on the side wall of blank, complete the rough milling of 3 d impeller.
Further, as shown in figure 5, making impeller by rotating impeller blank on the boring table
When blank is successively rotated to the region processed needed for each runner, comprising:
S504a calculates per pass runner angle shared on the impeller blank according to the quantity of the runner on three-dimensional model
Spend size；
All runners are successively carried out serial number arrangement, wherein using first of runner as impeller by S504b in order
Its serial number is simultaneously set to 0 by the rotation starting point of blank, and the serial number close to a runner of first of runner side is set to 1；
S504c is carried out impeller blank by boring tableRotation, rotates impeller blank to the road K
The region processed needed for runner, wherein n is the quantity of runner.
As a preferred embodiment, by the cutter after setting machining angle, respectively to each processing district
When region on the corresponding impeller blank in domain is processed, include:
Layering processing is carried out to impeller blank by cutter, makes the area on impeller blank corresponding with each machining area
Domain forms runner；Wherein, every layer of cutting-in of cutter is less than 1mm, and the feed speed of cutter is greater than 1000mm/min.
Layering processing is carried out to impeller blank by cutter, the vibration in impeller blank process can be reduced, and pass through
Small cutting-in, the toolpath pattern of roughing feed improve the processing efficiency of runner, and rough milling for ternary vane of centrifugal air compressor is rapidly completed and adds
Work.
As a preferred embodiment, by the cutter after setting machining angle, respectively to each machining area pair
When the region on impeller blank answered is processed, include:
Impeller blank is loaded by chuck and is fixed on boring table, the outer circle and end face to impeller blank carry out
Beat table centering, and guarantee centering precision within 0.02mm, with guarantee impeller blank it is horizontal be placed on table core.
Further, as Fig. 1 to the specific implementation of Fig. 5 method, the embodiment of the invention provides a kind of 3 d impellers
Rough milling device, as shown in fig. 6, device includes: tectonic model module, region division module, machining angle analysis module, knife
Have machining angle setting module and processing module.
Tectonic model module 100, for constructing the three-dimensional model of 3 d impeller by application software；
Region division module 200, for according to the runner on three-dimensional model curvature of curved surface and/or blade twist angle
Degree, is divided into several machining areas for a runner；
Machining angle analysis module 300, for respectively to the curvature of curved surface and/or blade twist on each machining area
Angle is analyzed, and determines machining angle corresponding to each machining area；
Tool sharpening angle initialization module 400, for the machining angle of the cutter on boring table to be respectively set to
Machining angle corresponding to each machining area；
Processing module 500, for by setting machining angle after cutter, respectively to leaf corresponding with each machining area
Region on wheel blank is processed, and is made to form runner on impeller blank, is completed the rough milling of 3 d impeller.
As a preferred embodiment, as shown in fig. 7, region division module 200 includes:
Cutter coordinate system setup unit 201, for the impeller center on three-dimensional model to be set as mould processing coordinate system
Origin, and keep the direction of mould processing coordinate system consistent with the direction of the Cutter coordinate system of boring table, i.e. three-dimensional model
Y-axis perpendicular to table surface and direction it is upward；
Area division unit 202, for on three-dimensional model runner and/or blade analyze, according to close
Surface curvature size and direction and/or similar blade twist angle runner is divided, make runner along vertical
The Z-direction of body Model is divided into several machining areas.
As a preferred embodiment, region division module 200 further include:
Processing times analytical unit, for the depth and cutter pair according to the corresponding runner on each machining area
The cutting-in size that the impeller blank is cut calculates separately out the cutter and carries out layering processing to each machining area
Processing times.
As a preferred embodiment, region division module 200 includes:
Cutter diameter analytical unit, for the curvature of curved surface and blade twist according to the corresponding runner of each machining area
The machining angle of angle and the corresponding cutter of each machining area determines process the corresponding cutter of each machining area respectively
Diameter.
As a preferred embodiment, as shown in figure 8, processing module 500 includes:
Impeller blank placement unit 501, for impeller blank level to be placed on boring table；
Cutter is arranged each for the range of work according to each machining area in tool sharpening region setup unit 502
The corresponding working height of machining area and width range；
First of runner processing unit 503, for by cutter respectively on impeller blank with each machining area pair
The region answered carries out subregion processing, and first of runner is completed on impeller blank；
Impeller blank rotation control unit 504, for making leaf by rotating impeller blank on boring table
Wheel blank is successively rotated to the region processed needed for each runner；
Multiple runner processing units 505, for passing through cutter in each required region processed to impeller blank
Subregion processing is carried out, makes to form multiple runners on the side wall of impeller blank, completes the rough milling of 3 d impeller.
Further, as shown in figure 9, impeller blank rotation control unit 504 includes:
Runner angle calculation unit 504a calculates per pass runner in leaf for the quantity according to the runner on three-dimensional model
Take turns angular dimension shared on blank；
Runner sequencing unit 504b, for all runners successively to be carried out to serial number arrangement in order, wherein flow first
Road as impeller blank rotation starting point and its serial number is set to 0, the serial number of a runner close to first of runner side is set to
1；
Impeller blank rotation angle calculating unit 504c, for being carried out impeller blank by boring table
Rotation, rotates impeller blank to the region processed needed for the road K runner, wherein n is the quantity of runner.
As a preferred embodiment, processing module 500 includes:
Cutter layering processing unit, for carrying out layering processing to impeller blank by cutter, make with each processing district
Region on the corresponding impeller blank in domain forms runner；Wherein, every layer of cutting-in of cutter is less than 1mm, and the feed speed of cutter is big
In 1000mm/min.
As a preferred embodiment, processing module 500 includes:
Impeller blank centering unit, for impeller blank to be loaded by chuck and is fixed on boring table, to leaf
The outer circle and end face for taking turns blank carry out beating table centering, and guarantee centering precision within 0.02mm, to guarantee that impeller blank is horizontal
Be placed on table core.
It should be noted that each function involved by a kind of rough milling device of 3 d impeller provided in an embodiment of the present invention
Other corresponding descriptions of unit, can be with reference to the corresponding description in Fig. 1,2,4,5, and details are not described herein.
Based on the above-mentioned method as shown in Fig. 1,2,4,5, correspondingly, the embodiment of the invention also provides a kind of storage equipment,
It is stored thereon with computer program, which realizes above-mentioned ternary leaf a kind of as shown in Fig. 1,2,4,5 when being executed by processor
The rough milling method of wheel.
Based on the embodiment of the above-mentioned method as shown in Fig. 1,2,4,5 and the virtual bench as shown in Fig. 6,7,8,9, in order to realize
Above-mentioned purpose, the embodiment of the invention also provides a kind of rough milling device of 3 d impeller, which includes that storage is set
Standby and processor；Equipment is stored, for storing computer program；Processor, realized for executing computer program it is above-mentioned such as
A kind of rough milling method of 3 d impeller shown in Fig. 1,2,4,5.
By applying the technical scheme of the present invention, a kind of 3 d impeller provided by the invention rough mill plus
Work method, by the curvature of curved surface and/or blade twist angle according to the runner on three-dimensional model, if a runner is divided into
Dry machining area, and determine machining angle corresponding to each machining area；By setting processing angle on boring table
Cutter after degree processes impeller blank, to complete the rough milling of 3 d impeller.By the present invention in that being worked with boring machine
Platform processes impeller blank instead of five-axis NC machine center, by the rotary index function of boring table, by work
It rotates as platform to required machining angle, the runner Milling Process in specified region is completed under the angle, and in process
The angle of the rotation of middle workbench can be completed by NC instruction, be programmed to the method can by automation；Simultaneously
Cutter by being provided with different machining angles carries out runner processing, makes to have used in each machining area the most suitable
Cutter machining angle, it is more accurate not only to rough mill rear channel size, but also per hour from equipment purchase cost and equipment
From the aspect of processing cost, the manufacturing cost of 3 d impeller is considerably reduced.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (10)
1. a kind of rough milling method of 3 d impeller characterized by comprising
The three-dimensional model of 3 d impeller is constructed by application software；
According to the curvature of curved surface of the runner on the three-dimensional model and/or blade twist angle, a runner is divided into
Several machining areas；
Respectively on each machining area curvature of curved surface and/or blade twist angle analyze, determine each institute
State machining angle corresponding to machining area；
The machining angle of cutter on boring table is respectively set to machining angle corresponding to each machining area；
By the cutter after setting machining angle, respectively to the area on impeller blank corresponding with each machining area
Domain is processed, and is made to form the runner on the impeller blank, is completed the rough milling of the 3 d impeller.
2. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that according to the solid
The curvature of curved surface and/or blade twist angle of runner on model, when a runner is divided into several machining areas,
Include:
Impeller center on the three-dimensional model is set as to the origin of mould processing coordinate system, and makes the mould processing coordinate
The direction of system is consistent with the direction of the Cutter coordinate system of the boring table, i.e., the Y-axis of the described three-dimensional model is perpendicular to work
Platform table top and direction is upward；
To on the three-dimensional model runner and/or blade analyze, according to the size with similar surface curvature
And direction and/or similar blade twist angle divide the runner, make the runner along the Z of the three-dimensional model
Axis direction is divided into several machining areas.
3. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that according to the solid
The curvature of curved surface and/or blade twist angle of runner on model, when a runner is divided into several machining areas,
Further include:
According to the depth of the corresponding runner on each machining area and the cutter to the impeller blank into
The cutting-in size of row cutting calculates separately out the processing times that the cutter carries out layering processing to each machining area.
4. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that according to the solid
The curvature of curved surface and/or blade twist angle of runner on model, when a runner is divided into several machining areas,
Further include:
According to the curvature of curved surface of the corresponding runner of each machining area and blade twist angle and each described
The machining angle of the corresponding cutter of machining area determines process the straight of the corresponding cutter of each machining area respectively
Diameter.
5. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that passing through setting processing
The cutter after angle, when being processed respectively to the region on impeller blank corresponding with each machining area, packet
It includes:
By being placed on the boring table for the impeller blank level, the cutter is carried out to machining angle respectively and is set
It sets；
According to the range of work of each machining area, it is high in the corresponding processing of each machining area that the cutter is set
Degree and width range；
Subregion is carried out to region corresponding with each machining area on the impeller blank respectively by the cutter
Processing, completes first of runner on the impeller blank；
By rotating the impeller blank on the boring table, rotate the impeller blank successively to each
The region processed needed for the runner；
Subregion processing is carried out to the impeller blank by the cutter in each required region processed, is made
Multiple runners are formed on the side wall of the impeller blank, complete the rough milling of the 3 d impeller.
6. a kind of rough milling method of 3 d impeller according to claim 5, which is characterized in that by by the leaf
Wheel blank rotated on the boring table, make the impeller blank successively rotate to needed for each runner into
When the region of row processing, comprising:
According to the quantity of the runner on the three-dimensional model, it is shared on the impeller blank to calculate runner described in per pass
Angular dimension；
All runners are successively carried out to serial number arrangement in order, wherein using first of runner as the impeller base
Its serial number is simultaneously set to 0 by the rotation starting point of material, and the serial number close to a runner of first of runner side is set to 1；
The impeller blank is carried out by the boring tableRotation, rotates the impeller blank to K
The region processed needed for runner described in road, wherein n is the quantity of the runner.
7. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that passing through setting processing
The cutter after angle, when being processed respectively to the region on impeller blank corresponding with each machining area, packet
It includes:
Layering processing is carried out to the impeller blank by the cutter, is made in the leaf corresponding with each machining area
The region taken turns on blank forms runner；Wherein, every layer of cutting-in of the cutter is less than 1mm, and the feed speed of the cutter is greater than
1000mm/min。
8. a kind of rough milling method of 3 d impeller according to claim 1, which is characterized in that passing through setting processing
The cutter after angle, when being processed respectively to the region on impeller blank corresponding with each machining area, packet
It includes:
The impeller blank is loaded by chuck and is fixed on the boring table, outer circle to the impeller blank and
End face carries out beating table centering, and guarantee centering precision within 0.02mm, with guarantee the impeller blank it is horizontal be placed on work
Make platform center.
9. a kind of storage medium, is stored thereon with computer program, which is characterized in that realization when described program is executed by processor
The rough milling method of 3 d impeller described in any item of the claim 1 to 8.
10. a kind of rough milling device of 3 d impeller, including storage medium, processor and storage are on a storage medium and can be
The computer program run on processor, which is characterized in that the processor realizes claim 1 to 8 when executing described program
The rough milling method of described in any item 3 d impellers.
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|---|---|---|---|
| CN201811211235.XA CN109304505B (en) | 2018-10-17 | 2018-10-17 | Rough milling method of ternary impeller |
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| CN201811211235.XA CN109304505B (en) | 2018-10-17 | 2018-10-17 | Rough milling method of ternary impeller |
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| CN110076379A (en) * | 2019-04-30 | 2019-08-02 | 沈阳透平机械股份有限公司 | The secondary method for fine finishing of the impeller blade of centrifugal compressor and impeller blade |
| CN110315295A (en) * | 2019-07-24 | 2019-10-11 | 重庆市万州区腾伟机械有限公司 | Propeller processing technique |
| CN110315116A (en) * | 2019-05-31 | 2019-10-11 | 沈阳透平机械股份有限公司 | The process of shrouding disc milling 3 d impeller blade flank milling |
| CN110744112A (en) * | 2019-11-26 | 2020-02-04 | 中国航发沈阳黎明航空发动机有限责任公司 | Vibration reduction milling method for large-torsion variable-fillet blade profile of integral impeller |
| CN111136309A (en) * | 2020-01-10 | 2020-05-12 | 贵阳航发精密铸造有限公司 | Method for processing triple blades into double blades |
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| CN110076379A (en) * | 2019-04-30 | 2019-08-02 | 沈阳透平机械股份有限公司 | The secondary method for fine finishing of the impeller blade of centrifugal compressor and impeller blade |
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| CN110744112B (en) * | 2019-11-26 | 2020-08-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Vibration reduction milling method for large-torsion variable-fillet blade profile of integral impeller |
| CN111136309A (en) * | 2020-01-10 | 2020-05-12 | 贵阳航发精密铸造有限公司 | Method for processing triple blades into double blades |
| CN111136309B (en) * | 2020-01-10 | 2021-11-05 | 贵阳航发精密铸造有限公司 | Method for processing triple blades into double blades |
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