CN107999784A - A kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method - Google Patents
A kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method Download PDFInfo
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- CN107999784A CN107999784A CN201711128893.8A CN201711128893A CN107999784A CN 107999784 A CN107999784 A CN 107999784A CN 201711128893 A CN201711128893 A CN 201711128893A CN 107999784 A CN107999784 A CN 107999784A
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- side end
- support plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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Abstract
The invention discloses a kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method, the preliminary working method are as follows：(1) to install side end face A after outer shroud as axial benchmark, to install radial references of the side endoporus B as casting before inner ring, using oblique support plate center C as angular benchmark；(2) 3mm surpluses, surface luminous intensity Ra3.2 are stayed in A, B benchmark place；A, the dimensional accuracy of B, C benchmark is ± 0.1mm.The present invention has unified design, has cast, the benchmark that machine adds, and positioning accuracy is high, can quick and precisely measure oblique support plate load-bearing frame casting dimension, improves casting dimension accuracy, improves processing efficiency, and processing production capacity improves.
Description
Technical field
The invention belongs to oblique support plate load-bearing frame manufacturing field, at the beginning of a kind of tiltedly support plate load-bearing frame casting benchmark is especially provided
Processing method.
Background technology
The oblique support plate load-bearing frame casting woollen of available engine is processed by process unit of main engine plants, in process
Often there is phenomena such as machined surface exposure metallurgical imperfection and off-dimension.The appearance of these problems, is gently then excluded repeatedly
Defect carries out coordination and handles to report, and seriously affects the production efficiency of process unit, causes equipment and the waste of personnel；It is heavy then
Scrapping for casting is caused, brings huge economic loss.
For this phenomenon, through thinking, metallurgical imperfection can be by the research of technique of supplier and to maintain strict control over product lossless
Detection pass can solve；It is overproof for dimension overproof problem, the influence poling assembling not up to standard of such as oblique support plate position degree, excircle dimension
The problem of influencing anti-groove processing etc., on the one hand reflecting casting poor dimensional precision itself, on the other hand also reflects just primordium
Accurately fixed inappropriate problem.Oblique support plate load-bearing frame casting structure is shown in Fig. 1, by outer shroud (a diameter of Φ 880mm), inner ring and 8
A tiltedly support plate (oblique support plate position degree requirement is Φ 1mm) forms, and has forward and backward installation side respectively on inner and outer ring, also divides on outer shroud
Cloth 4 lifting lugs.
So big complex component will realize that (requirement of oblique support plate position degree is Φ 1mm to so high dimensional accuracy, some types
Number requirement is Φ 0.6mm), difficulty is sizable.In order to solve the problems, such as these, propose as at the beginning of casting supplier carries out casting benchmark
The technical solution of processing, it is desirable to which supplier is in the case where fully taking into account comprehensive size requirement, and by adjusting repeatedly, preliminary working goes out base
Standard, ensures that casting during following process, disclosure satisfy that design drawing requirement.Meanwhile metallurgical and dimensional problem is exposed in advance, and
Shi Jinhang is solved, and is solved in advance in supplier with dimensional problem metallurgical, to shorten in main engine plants' process because handling hair
The stand-by period of material size and metallurgical problems simultaneously improves the quality level of casting.
The content of the invention
It is an object of the invention to provide a kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method, as design, casting
Make, be machined unique reference system, realize the unifying datum of each operation, can quick and precisely measure oblique support plate load-bearing frame ruler
It is very little；Exposure metallurgy and dimensional problem in advance, are conducive to supplier and solve the problems, such as in advance；Metallurgical quality of cast and dimensional accuracy are improved,
Oblique support plate load-bearing frame size of components precision is improved, meets design requirement；Reduce metallurgical imperfection exclusion and the ruler in process
Very little problem is coordinated, and improves following process efficiency, improves processing production capacity, meets growing throughput requirements.
The technical scheme is that：A kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method, the preliminary working side
Method is as follows：
(1) to install side end face A after outer shroud as axial benchmark, to install radial references of the side endoporus B as casting before inner ring,
Using oblique support plate center C as angular benchmark；
(2) 3mm surpluses, surface luminous intensity Ra3.2 are stayed in A, B benchmark place；A, the dimensional accuracy of B, C benchmark is ± 0.1mm.
The specific procedure of processing of preliminary working method is as follows：
Step 1：Scribing inspection axial direction allowance
Casting is placed on face plate, takes into account the relative positions such as oblique support plate, lifting lug, leveling casting, primarily determines that axial direction
The distribution of surplus, and rule on casting；
Step 2：Scribing inspection radial direction allowance
By axial situation of ruling, by casting flip vertical, the allowance balance of casting radial direction is checked, and rule on casting；
Step 3：Side end face is installed before rough turn outer shroud
Levelling processing is carried out to the opposite of A benchmark, considers the verticality with endoporus, ensures that more than 80% sees light；
Step 4：Side end face is installed before rough turn inner ring；
Levelling processing is carried out to installing side end face before inner ring, it is parallel with installing side end face before outer shroud, ensure that 80% sees light i.e.
Can；
Step 5：Side endoporus φ 392 (B benchmark) is installed before rough turn inner ring
3.5mm surpluses are stayed when rough turn, are worked into φ 393, consider with the verticality of benchmark A and with the concentricity of outer shroud not
More than 0.2mm；
Step 6：Side end face A benchmark are installed after car outer shroud
3mm surpluses are stayed, ensure 7 ± 0.1 sizes, flatness is less than 0.2mm, is less than 0.15mm, surface with B reference vehiculars degree
Luminosity is Ra3.2；
Step 7：Side end face is installed before in-car ring
On the basis of A benchmark, side end face is installed before in-car ring, stays 3mm surpluses, ensure 151 ± 0.1 sizes, hang down with B benchmark
Straight degree is less than 0.15mm, surface luminous intensity Ra3.2；
Step 8：Side endoporus φ 392 (B benchmark) is installed before smart car inner ring
On the basis of A benchmark, leveling casting, the endoporus after centering is rough turn, carries out smart car to B benchmark, 3mm surpluses is stayed, by B
Control vehicle ensures to be less than 0.15mm, surface luminous intensity Ra3.2 with A reference vehiculars degree to φ 392 ± 0.1；
Step 9：Side end face is installed with installing side end face after inner ring before smart car outer shroud
Side end face is installed on the basis of A benchmark, before smart car outer shroud and side end face is installed after inner ring, stays 3mm surpluses, is ensured
169 ± 0.1,33.5 ± 0.1 sizes, are less than 0.15mm, surface luminous intensity Ra3.2 with B reference vehiculars degree；
Step 10：Determine angular benchmark C
After casting A, B benchmark determines, casting is placed on face plate or lathe to the angular phase for checking oblique support plate and lifting lug
To position dimension；Comprehensive analysis is carried out to size, selects the position of left-right deviation minimum to ensure that benchmark C is true as angular benchmark C
After fixed, the physical location and benchmark C deviations of the outer centre bore of oblique support plate are no more than 1mm；
Step 11：Angular benchmark hole machined or marking
By the definite benchmark location of C of size line, angular datum hole, or the position of the angular benchmark C of line standard are made；
Step 12：Casting quality is examined
Radially, axially, the determination process of angular benchmark, and supplier carry out casting the reparation of size and metallurgical imperfection
Journey.The Non-Destructive Testing of comprehensive size detection and metallurgical quality is carried out after the completion of benchmark preliminary working to casting, improves accuracy of detection,
It is more advantageous to finding size and metallurgical problems.After examining definite no problem again, casting hair main engine plants are processed.
The present invention has following beneficial effect：
1st, metallurgical and dimensional problem can be exposed in advance, and corresponding solution is taken easy to supplier；
2nd, design has been unified, has cast, the benchmark that machine adds；
3rd, positioning accuracy is high, can quick and precisely measure oblique support plate load-bearing frame casting dimension；
4th, casting dimension accuracy is improved, improves processing efficiency, processing production capacity improves.
Brief description of the drawings
Fig. 1 is oblique support plate load-bearing frame casting structure figure in the present invention；
Fig. 2 is casting preliminary working reference scheme design drawing 1 of the present invention；
Fig. 3 is casting preliminary working reference scheme design drawing 2 of the present invention；
Fig. 4 is processing department bitmap of the present invention；
In figure：1st, inner ring；2nd, outer shroud；3rd, oblique support plate；4th, lifting lug；5th, side is installed before inner ring；6th, side is installed after inner ring；7th, it is outer
Side is installed before ring；8th, side is installed after outer shroud；9th, the outer centre bore of oblique support plate.
Embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
A kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method, the preliminary working method are as follows：
(1) to install side end face A after outer shroud as axial benchmark, to install radial references of the side endoporus B as casting before inner ring,
Using oblique support plate center C as angular benchmark；
(2) 3mm surpluses, surface luminous intensity Ra3.2 are stayed in A, B benchmark place；A, the dimensional accuracy of B, C benchmark is ± 0.1mm.
The specific procedure of processing of preliminary working method is as follows：
Step 1：Scribing inspection axial direction allowance
Casting is placed on face plate, takes into account the relative positions such as oblique support plate, lifting lug, leveling casting, primarily determines that axial direction
The distribution of surplus, and rule on casting；
Step 2：Scribing inspection radial direction allowance
By axial situation of ruling, by casting flip vertical, the allowance balance of casting radial direction is checked, and rule on casting；
Step 3：Side end face is installed before rough turn outer shroud
Levelling processing is carried out to the opposite of A benchmark, considers the verticality with endoporus, ensures that more than 80% sees light；
Step 4：Side end face is installed before rough turn inner ring；
Levelling processing is carried out to installing side end face before inner ring, it is parallel with installing side end face before outer shroud, ensure that 80% sees light i.e.
Can；
Step 5：Side endoporus φ 392 (B benchmark) is installed before rough turn inner ring
3.5mm surpluses are stayed when rough turn, are worked into φ 393, consider with the verticality of benchmark A and with the concentricity of outer shroud not
More than 0.2mm；
Step 6：Side end face A benchmark are installed after car outer shroud
3mm surpluses are stayed, ensure 7 ± 0.1 sizes, flatness is less than 0.2mm, is less than 0.15mm, surface with B reference vehiculars degree
Luminosity is Ra3.2；
Step 7：Side end face is installed before in-car ring
On the basis of A benchmark, side end face is installed before in-car ring, stays 3mm surpluses, ensure 151 ± 0.1 sizes, hang down with B benchmark
Straight degree is less than 0.15mm, surface luminous intensity Ra3.2；
Step 8：Side endoporus φ 392 (B benchmark) is installed before smart car inner ring
On the basis of A benchmark, leveling casting, the endoporus after centering is rough turn, carries out smart car to B benchmark, 3mm surpluses is stayed, by B
Control vehicle ensures to be less than 0.15mm, surface luminous intensity Ra3.2 with A reference vehiculars degree to φ 392 ± 0.1；
Step 9：Side end face is installed with installing side end face after inner ring before smart car outer shroud
Side end face is installed on the basis of A benchmark, before smart car outer shroud and side end face is installed after inner ring, stays 3mm surpluses, is ensured
169 ± 0.1,33.5 ± 0.1 sizes, are less than 0.15mm, surface luminous intensity Ra3.2 with B reference vehiculars degree；
Step 10：Determine angular benchmark C
After casting A, B benchmark determines, casting is placed on face plate or lathe to the angular phase for checking oblique support plate and lifting lug
To position dimension；Comprehensive analysis is carried out to size, selects the position of left-right deviation minimum to ensure that benchmark C is true as angular benchmark C
After fixed, the physical location and benchmark C deviations of the outer centre bore of oblique support plate are no more than 1mm；
Step 11：Angular benchmark hole machined or marking
By the definite benchmark location of C of size line, angular datum hole, or the position of the angular benchmark C of line standard are made；
Step 12：Casting quality is examined
Radially, axially, the determination process of angular benchmark, and supplier carry out casting the reparation of size and metallurgical imperfection
Journey.The Non-Destructive Testing of comprehensive size detection and metallurgical quality is carried out after the completion of benchmark preliminary working to casting, improves accuracy of detection,
It is more advantageous to finding size and metallurgical problems.After examining definite no problem again, casting hair main engine plants are processed.
The casting manufactured by above-mentioned preliminary working method, casting dimension is stable, metallurgical imperfection is greatly reduced, and effect is good
It is good, the process-cycle is substantially reduced, improves the quality of product.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should be covered by the protection scope of the present invention.
Claims (2)
- A kind of 1. tiltedly support plate load-bearing frame casting benchmark preliminary working method, it is characterised in that the preliminary working method is as follows：(1) to install side end face A after outer shroud as axial benchmark, to install radial references of the side endoporus B as casting before inner ring, with oblique Support plate center C is angular benchmark；(2) 3mm surpluses, surface luminous intensity Ra3.2 are stayed in A, B benchmark place；A, the dimensional accuracy of B, C benchmark is ± 0.1mm.
- 2. a kind of tiltedly support plate load-bearing frame casting benchmark preliminary working method described in accordance with the claim 1, it is characterised in that described The specific procedure of processing of preliminary working method is as follows：Step 1：Scribing inspection axial direction allowanceCasting is placed on face plate, takes into account oblique support plate, lifting lug relative position, leveling casting, primarily determines that axial surplus Distribution, and rule on casting；Step 2：Scribing inspection radial direction allowanceBy axial situation of ruling, by casting flip vertical, the allowance balance of casting radial direction is checked, and rule on casting；Step 3：Side end face is installed before rough turn outer shroudLevelling processing is carried out to the opposite of A benchmark, considers the verticality with endoporus, ensures that more than 80% sees light；Step 4：Side end face is installed before rough turn inner ring；Levelling processing is carried out to installing side end face before inner ring, it is parallel with installing side end face before outer shroud, ensure that 80% sees light；Step 5：Side endoporus φ 392 is installed before rough turn inner ring3.5mm surpluses are stayed when rough turn, are worked into φ 393, consider with the verticality of benchmark A and with the concentricity of outer shroud no more than 0.2mm；Step 6：Side end face A benchmark are installed after car outer shroud3mm surpluses are stayed, ensure 7 ± 0.1 sizes, flatness is less than 0.2mm, is less than 0.15mm, surface luminous intensity with B reference vehiculars degree For Ra3.2；Step 7：Side end face is installed before in-car ringOn the basis of A benchmark, side end face is installed before in-car ring, stays 3mm surpluses, ensure 151 ± 0.1 sizes, with B reference vehicular degree Less than 0.15mm, surface luminous intensity Ra3.2；Step 8：Side endoporus φ 392 is installed before smart car inner ringOn the basis of A benchmark, leveling casting, the endoporus after centering is rough turn, carries out smart car to B benchmark, 3mm surpluses is stayed, by B benchmark Car ensures to be less than 0.15mm, surface luminous intensity Ra3.2 with A reference vehiculars degree to φ 392 ± 0.1；Step 9：Side end face is installed with installing side end face after inner ring before smart car outer shroudSide end face is installed after side end face and inner ring are installed on the basis of A benchmark, before smart car outer shroud, stays 3mm surpluses, ensure 169 ± 0.1st, 33.5 ± 0.1 size, is less than 0.15mm, surface luminous intensity Ra3.2 with B reference vehiculars degree；Step 10：Determine angular benchmark CAfter casting A, B benchmark determines, casting is placed on face plate or lathe to the angular opposite position for checking oblique support plate and lifting lug Put size；Comprehensive analysis is carried out to size, selects the position of left-right deviation minimum to ensure that benchmark C is determined as angular benchmark C Afterwards, the physical location of the outer centre bore of oblique support plate and benchmark C deviations are no more than 1mm；Step 11：Angular benchmark hole machined or markingBy the definite benchmark location of C of size line, angular datum hole, or the position of the angular benchmark C of line standard are made；Step 12：Casting quality is examined.
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Cited By (5)
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| CN109551450A (en) * | 2018-11-29 | 2019-04-02 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of labyrinth precision castings scribing inspection device and method |
| CN110744267A (en) * | 2019-11-14 | 2020-02-04 | 无锡华能热能设备有限公司 | Ring for wind power equipment and machining process |
| CN112222771A (en) * | 2020-09-24 | 2021-01-15 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for controlling position degree of support plate of bearing frame casting of inclined support plate |
| CN113626938A (en) * | 2021-08-24 | 2021-11-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Design method of turbine rear casing process reference |
| CN114211010A (en) * | 2021-11-17 | 2022-03-22 | 上海长锐汽车零部件有限公司 | Turning method of UF (ultra-smooth) outer star wheel taking hot forging as blank |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109551450A (en) * | 2018-11-29 | 2019-04-02 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of labyrinth precision castings scribing inspection device and method |
| CN110744267A (en) * | 2019-11-14 | 2020-02-04 | 无锡华能热能设备有限公司 | Ring for wind power equipment and machining process |
| CN110744267B (en) * | 2019-11-14 | 2022-05-24 | 无锡华能热能设备有限公司 | Ring for wind power equipment and machining process |
| CN112222771A (en) * | 2020-09-24 | 2021-01-15 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for controlling position degree of support plate of bearing frame casting of inclined support plate |
| CN112222771B (en) * | 2020-09-24 | 2021-09-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for controlling position degree of support plate of bearing frame casting of inclined support plate |
| CN113626938A (en) * | 2021-08-24 | 2021-11-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Design method of turbine rear casing process reference |
| CN113626938B (en) * | 2021-08-24 | 2023-08-15 | 中国航发沈阳黎明航空发动机有限责任公司 | Design method of turbine rear casing process reference |
| CN114211010A (en) * | 2021-11-17 | 2022-03-22 | 上海长锐汽车零部件有限公司 | Turning method of UF (ultra-smooth) outer star wheel taking hot forging as blank |
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Application publication date: 20180508 |