CN103586640B - The processing method of the yielding taper revolving body of the many openings of a kind of thin-walled and revolving body - Google Patents
The processing method of the yielding taper revolving body of the many openings of a kind of thin-walled and revolving body Download PDFInfo
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- CN103586640B CN103586640B CN201310565356.5A CN201310565356A CN103586640B CN 103586640 B CN103586640 B CN 103586640B CN 201310565356 A CN201310565356 A CN 201310565356A CN 103586640 B CN103586640 B CN 103586640B
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Abstract
The invention discloses processing method and the revolving body of the yielding taper revolving body of the many openings of a kind of thin-walled, belong to revolving body machining technique field.This processing method comprises successively removes the large surplus of part blank, heat treatment of workpieces, eliminates the defect that inside workpiece exists, rough turned piece end face and interior profile, rough mill inside and outside workpiece and alleviate groove, half finish turning workpiece end face and interior profile, excircle of workpiece face opening, finish turning workpiece end face and interior profile, sink in fine finishining periphery opening and interior shape face, processing interface and interior profile are to design size, and whether processing butt hole and installing hole, detecting piece surface has these procedure of processings of crackle.This revolving body is made up of this processing method.It is little that the many openings of the thin-walled yielding taper revolving body using the method to process has deformation, and the advantage of uniform wall thickness, improves the qualification rate of product largely.
Description
Technical field
The present invention relates to revolving body machining technique field, particularly the processing method of the yielding revolving body of the many openings of a kind of thin-walled and revolving body.
Background technology
In Aerospace manufacturing industry, the manufacture for the yielding rotary part of many openings normally adopts solid forging blank, then carries out machining.The product that the processing method of many opening thin revolving body of existing integral forging and forming produces has deformation comparatively greatly, and wall thickness dimension is uneven, finally causes the quality of product and performance not high, cannot reach use standard.
Summary of the invention
In order to solve the problem, the present invention proposes the deformation of the many openings of a kind of thin-walled yielding revolving body little, the processing method of the yielding revolving body of the many openings of thin-walled of uniform wall thickness and the yielding taper revolving body of the many openings of thin-walled processed by the method.
The processing method of the yielding revolving body of the many openings of thin-walled provided by the invention comprises the following steps successively:
Remove the large surplus of workpiece blank; Workpiece is heat-treated; Eliminate the defect that inside workpiece exists; Rough turned piece two end faces and interior profile; Rough mill inside and outside workpiece two ends and alleviate groove; Half finish turning workpiece two end face and interior profile; Groove is alleviated to design size, then in the upper shed of excircle of workpiece face inside and outside processing work two ends; Finish turning workpiece two end faces and interior profile; Opening on fine finishining periphery is to design size, and then the interior shape face of first time processing is sagging; Profile in fine finishining interface and for the second time finish turning; Processing butt hole and second time process sinking of interior shape face.
As preferably, when process is heat-treated to described workpiece, ensure that the roundness deformation of described workpiece controls within 2mm.
As preferably, after two end faces of rough turn described workpiece and interior profile, ensure that the monolateral residue cutting output of workpiece is 4mm ~ 5mm.
As preferably, rough mill when alleviating groove inside and outside described workpiece two ends, the adjustment of the axiality of workpiece front and back end cylindrical is controlled within Φ 0.5mm, ensures that the monolateral residue cutting output of the feature after described work pieces process is 3mm ~ 4mm.
As preferably, when two end faces of workpiece described in half finish turning and interior profile, the adjustment of part front and back ends outer circles is controlled within Φ 0.2mm, leveling two end faces are carried out according to the axial dimension of described workpiece and the inside and outside distance alleviating groove and end face, be benchmark again with end face, support the endoporus of described workpiece, pressure endoporus step, make beating within φ 0.05mm of endoporus by centering process and end face beat within φ 0.1mm, and then profile in processing, in after the described work pieces process of final guarantee, the residue cutting output of profile is 2mm ~ 3mm.
As preferably, when the periphery upper shed of described workpiece, ensure that the monolateral residue cutting output after described workpiece openings is more than 2mm.
As preferably, when two end faces of workpiece described in finish turning and interior profile, ensure that the monolateral residue cutting output of two end faces after described work pieces process is 1mm ~ 2mm, the residue cutting output of profile is 1mm ~ 2mm, and the residue cutting output of interior shape is 0.5mm ~ 1mm
As preferably, during two end faces of workpiece described in finish turning, take large end face as benchmark, support endoporus, pressure endoporus step, what make endoporus and end face by centering process beats all within φ 0.05mm, coordinates flat large and small end face according to the size alleviating groove inside and outside small end, then processing two end faces, the monolateral residue cutting output of two end faces after the described work pieces process of final guarantee is 1mm ~ 2mm.
As preferably, during the interior profile of workpiece described in finish turning, take end face as benchmark, support endoporus, pressure endoporus step, makes beating within φ 0.05mm and making the beating within φ 0.1mm of end face of endoporus by centering process, and then processes profile in described workpiece, the residue cutting output of final guarantee profile is 1mm ~ 2mm, and the residue cutting output of interior shape is 0.5mm ~ 1mm.
As preferably, when fine finishining interface and interior profile, take end face as benchmark, support endoporus, pressure endoporus step, makes two ends outer circles (everywhere symmetric points) within Φ 0.05mm by centering process, and what make endoporus and end face by centering process beats all within φ 0.05mm, and then evenly both ends of the surface surplus is removed in turning, is worked into design size.
As preferably, after processing interface, the seal groove of two end faces is worked into design size.
As preferably, in second time finish turning during profile, by cavity and surface process to design size, this process is critical process, adopts the mode of repeatedly feed repeatedly., loose pressing plate in process, workpiece is pulled down from lathe, to place after ten minutes clamping again, to remove stress, each depth of cut is no more than 0.3mm, and feeding is no more than 50mm/min.
As preferably, time caving in processing butt hole and the interior shape face of second time processing, take large end face as benchmark, pressure endoporus step, make beating within φ 0.05mm of cylindrical by centering process, then with cylindrical upper shed for benchmark determination machining coordinate, the outer U-type groove of processing small end is sunk to design size; Take small end face as benchmark, pressure endoporus step, what make cylindrical by centering process beats within φ 0.05mm, and with cylindrical upper shed for benchmark determination machining coordinate, in processing, shape is sunk everywhere, and size and wall thickness connect flat; Take small end face as benchmark, pressure endoporus step, looks for upper and lower outer circles within Φ 0.05mm, and what make cylindrical by centering process beats within φ 0.05mm, and with cylindrical upper shed for benchmark determination machining coordinate, on processing large end face, butt hole is to design size; Upper axiality milling folder, cylindrical milling being pressed from both sides by centering process is within φ 0.05mm, and to hold greatly pin-and-hole to locate, be fixed on axiality milling folder, on processing small end face, butt hole is to design size, ensures the butt hole axiality requirement of large and small both ends of the surface.
Present invention also offers a kind of revolving body made based on the processing method of the yielding revolving body of the many openings of thin-walled provided by the invention.
The processing method of the many openings of thin-walled provided by the invention yielding taper revolving body because reasonable distribution is rough turn, the processing dimension of half finish turning and finish turning, make the revolving body deformation of being processed into little, uniform wall thickness, improves the qualification rate of product largely.
Accompanying drawing explanation
The structural representation of the yielding taper revolving body of the many openings of thin-walled that Fig. 1 provides for the embodiment of the present invention;
The opening schematic diagram of the yielding taper revolving body of the many openings of thin-walled that Fig. 2 provides for the embodiment of the present invention;
Detailed description of the invention
In order to understand the present invention in depth, below in conjunction with drawings and the specific embodiments, the present invention is described in detail.
See attached Fig. 1 and 2, part two ends outside diameter is respectively φ 939mm, φ 834mm, changes bundle forging process shaping by entirety.The theoretical level of workpiece is 430mm, is followed successively by according to the procedure of processing of processing method provided by the invention:
1) remove the large surplus of forging blank: according to forging ' s block dimension and blemish distributing position, coordinate to remove forging inside and outside circle, the large surplus of both ends of the surface, be convenient to heat treatment process below.
2) workpiece is heat-treated: heat-treat in process to workpiece, ensure that roundness deformation controls within 2mm.
3) detect inside workpiece whether existing defects: as preferably, use ultrasound examination forging inside whether existing defects.
4) rough turned piece two end faces and interior profile:
4.1) support endoporus, what centering made endoporus center beats within φ 0.5mm, end face run-out within φ 0.5mm, rough turn two end faces, monolateral residue cutting output 4mm after processing, the axial dimension of workpiece is 438mm;
4.2) take end face as benchmark, top endoporus, pressure endoporus step, centering endoporus beat within φ 0.5mm, shape and profile in processing housing, monolateral residue cutting output 4mm after processing, wall thickness dimension is 11.5mm.
5) rough mill inside and outside workpiece two ends and alleviate groove: the adjustment of workpiece front and back ends outer circles is controlled within Φ 0.5mm;
5.1) processing work small end is inside and outside alleviates groove, the monolateral residue cutting output 3mm of feature after processing;
5.2) adjust face, the large end of processing work is inside and outside alleviates groove, the monolateral residue cutting output 3mm of feature after processing.
6) artificial aging process workpiece: eliminated the harmful stress produced in processing by artificial aging.
7) half finish turning workpiece, two end faces and interior profile:
7.1) adjustment of workpiece front and back ends outer circles is controlled within Φ 0.2mm, leveling two end faces are carried out according to the axial dimension of described workpiece and the distance of inside and outside U-type groove and end face, monolateral residue cutting output 2mm after processing, axial dimension 434mm, both ends of the surface flatness 0.1mm, depth of parallelism 0.2mm;
7.2) take end face as benchmark again, support the endoporus of described workpiece, pressure endoporus step, make beating within φ 0.05mm of endoporus by centering process and end face beat within φ 0.1mm, and then profile in processing, process monolateral residue cutting output 2mm, wall thickness dimension 7.5mm.
8) groove is alleviated inside and outside processing work two ends and in periphery upper shed:
8.1) processing work small end is inside and outside alleviates groove, is machined to design size;
8.2) adjust face, the large end of processing work is inside and outside alleviates groove, is machined to design size;
8.9) processing excircles face upper shed, monolateral residue cutting output 2mm after processing.
9) finish turning workpiece two end faces and interior profile:
9.1) take large end face as benchmark, support endoporus, pressure endoporus step, what make endoporus and end face by centering process beats all within φ 0.05mm, coordinates flat large and small end face, then processing two end faces according to the size alleviating groove inside and outside small end, monolateral residue cutting output 1mm after processing, axial dimension is 432mm, end face plane degree 0.1mm, depth of parallelism 0.2mm;
9.2) take end face as benchmark, support endoporus, pressure endoporus step, by centering process make endoporus beat within φ 0.05mm and also make end face beat within φ 0.1mm, and then profile in described workpiece is processed, after processing, the profile residue cutting output of workpiece is 1mm, and the interior shape surplus of workpiece is 0.5mm, wall thickness dimension 5+00.2mm.
10) sink in fine finishining periphery opening and the interior shape face of first time processing:
10.1) upper shed of processing excircles face, is machined to design size;
10.2) in processing, sink in shape face, residue cutting output 0.5mm after processing.
11) fine finishining interface and interior profile:
11.1) take end face as benchmark, support endoporus, pressure endoporus step, look for large and small two ends outer circles within Φ 0.05mm by fixing four symmetric points, centering endoporus beat within φ 0.05mm, end face beat within φ 0.05mm, both ends of the surface surplus is removed in even turning, is worked into design size height 430 ± 0.2mm;
11.2) end face seal groove is processed to design size;
11.3) inside and outside shape is processed to design size; This process is critical process, and adopt the mode of repeatedly feed repeatedly in processing during profile, in process, loose pressing plate, pulls down workpiece from lathe, and to place after ten minutes clamping again, this is natrual ageing removal stress; Each depth of cut is no more than 0.3mm, and feeding is no more than 50mm/min.Internal-external circle concentricity 0.1mm, linearity 0.2mm, circularity 0.2mm, wall thickness 3.5 ± 0.2mm; Now wall thickness dimension leaves the feasibility of the correction guarantee following process of 0.5mm.
12) butt hole procedure of processing:
12.1) take large end face as benchmark, pressure endoporus step, makes beating within φ 0.05mm of cylindrical by centering process, then with cylindrical upper shed for benchmark determination machining coordinate, the outer U-type groove of processing small end is sunk to design size;
12.2) take small end face as benchmark, pressure endoporus step, what make cylindrical by centering process beats within φ 0.05mm, and with cylindrical upper shed for benchmark determination machining coordinate, in processing, shape is sunk everywhere, and size and wall thickness connect flat;
12.3) take small end face as benchmark, pressure endoporus step, within looking for upper and lower outer circles Φ 0.05mm, the large end cylindrical of centering is beated within φ 0.05mm, and with cylindrical upper shed for benchmark determination machining coordinate, on processing large end face, butt hole is to design size;
12.4) upper axiality milling folder, cylindrical milling being pressed from both sides by centering process is within φ 0.05mm, and to hold greatly pin-and-hole to locate, be fixed on axiality milling folder, on processing small end face, butt hole is to design size, ensures the butt hole axiality requirement of large and small both ends of the surface.
13) detect the surface of the work processed and whether there is crackle:
Fluoroscopic examination surface of the work is used whether to have crackle.
Present invention also offers a kind of revolving body made based on the processing method of the yielding revolving body of the many openings of thin-walled provided by the invention.
The processing method of the many openings of thin-walled provided by the invention yielding taper revolving body because reasonable distribution is rough turn, the processing dimension of half finish turning and finish turning, make produced product deformation little, uniform wall thickness, improves the qualification rate of product largely.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a processing method for the yielding taper revolving body of the many openings of thin-walled, is characterized in that: comprise the following steps successively:
Remove the large surplus of forging blank; Workpiece is heat-treated; Eliminate the defect that inside workpiece exists; Rough turned piece two end faces and interior profile; Rough mill inside and outside workpiece two ends and alleviate groove; Half finish turning workpiece two end face and interior profile, large and small for workpiece end outer circles adjustment is controlled within Φ 0.2mm, leveling two end faces are carried out according to the axial dimension of described workpiece and the distance of inside and outside U-type groove and end face, be benchmark again with end face, support the endoporus of described workpiece, pressure endoporus step, make beating within φ 0.05mm of endoporus by centering process and end face beat within φ 0.1mm, and then profile in processing, in after the described work pieces process of final guarantee, the residue cutting output of profile is 2mm ~ 3mm; Finish-milling workpiece alleviates groove to design size inside and outside two ends, then in the upper shed of excircle of workpiece face; Finish turning workpiece two end faces and interior profile; Opening on fine finishining periphery is to design size, and then the interior shape face of first time processing is sagging; Fine finishining interface and profile in second time fine finishining; Processing butt hole and second time process sinking of interior shape face.
2. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, is characterized in that: ensure that the monolateral residue cutting output of workpiece is 4mm ~ 5mm after rough turn described workpiece two end faces and interior profile.
3. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, it is characterized in that: rough mill when alleviating groove inside and outside described workpiece two ends, the adjustment of the axiality of workpiece front and back end cylindrical is controlled within Φ 0.5mm, ensures that the monolateral residue cutting output of the feature after described work pieces process is 3mm ~ 4mm.
4. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, it is characterized in that: described in finish turning during workpiece two end faces, take large end face as benchmark, support endoporus, pressure endoporus step, what make endoporus and end face by centering process beats all within φ 0.05mm, flat large and small end face is coordinated according to the size alleviating groove inside and outside small end, then processing two end faces, the monolateral residue cutting output of two end faces after the described work pieces process of final guarantee is 1mm ~ 2mm.
5. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, it is characterized in that: in workpiece described in finish turning during profile, take end face as benchmark, support endoporus, pressure endoporus step, makes beating within φ 0.05mm and making the beating within φ 0.1mm of end face of endoporus by centering, and then processes profile in described workpiece, the residue cutting output of final guarantee profile is 1mm ~ 2mm, and the residue cutting output of interior shape is 0.5mm ~ 1mm.
6. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, it is characterized in that: during fine finishining interface, take end face as benchmark, support endoporus, pressure endoporus step, makes two ends outer circles within Φ 0.05mm by symmetric points centering everywhere, and what make endoporus and end face by centering beats all within φ 0.05mm, and then evenly both ends of the surface surplus is removed in turning, is worked into design size; After processing interface, the seal groove of two end faces is worked into design size.
7. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, it is characterized in that: in second time fine finishining during profile, by cavity and surface process to design size, this process is critical process, adopts the mode of repeatedly feed repeatedly, loose pressing plate in process, workpiece is pulled down from lathe, to place after ten minutes clamping again, to remove stress, each depth of cut is no more than 0.3mm, and feeding is no more than 50mm/min.
8. the processing method of the yielding taper revolving body of the many openings of a kind of thin-walled according to claim 1, is characterized in that: also comprise and detect the step whether surface of the work processed exists crackle.
9. a revolving body, is characterized in that: described revolving body is processed into according to processing method according to any one of claim 1 ~ 8.
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