CN106271367A - A kind of method for maintaining of engine housing molectron - Google Patents
A kind of method for maintaining of engine housing molectron Download PDFInfo
- Publication number
- CN106271367A CN106271367A CN201610767088.9A CN201610767088A CN106271367A CN 106271367 A CN106271367 A CN 106271367A CN 201610767088 A CN201610767088 A CN 201610767088A CN 106271367 A CN106271367 A CN 106271367A
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- CN
- China
- Prior art keywords
- hole
- dimension
- molectron
- maintaining
- engine housing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
A kind of method for maintaining of engine housing molectron, comprise the steps: the first step, check dimension discrepancy position, find out dimension discrepancy and change part, and using dimension overproof position as benchmark, in conjunction with dimension line relation, determine and change part from what the extension of dimension overproof position related to；Second step, all carry out dismantling and re-starting assembling by the part that changes determined；3rd step, testing the boxed units after ressembling, if all dimensional requirements all meet the requirements, it is qualified to keep in repair.The present invention changes the determination process of part quickly, comprehensively.For facing the boxed units scrapped, the method is used to save processing, whole part can be scrapped, only scrap one or several assembly parts thereon, by ressembling processing, thus pay a qualified boxed units, dramatically saves on production cost, saved baroque boxed units and directly scrapped the loss caused.
Description
Technical field
The invention belongs to field of machining, be specifically related to the method for maintaining of a kind of engine housing molectron.
Background technology
For the boxed units used in electromotor, its die cavity is complicated, and single part quantity is many, and dimensional accuracy is wanted
Asking high, difficulty of processing is big, and woollen input cost is high, and the production cycle is long, once occurs that dimensional error is scrapped, and its economic loss is
Huge, and for the part having manufacturing schedule to require, if re-worked, it will serious affects the delivery time.
For facing the boxed units scrapped, if it is possible to saved by maintenance, it is not necessary to scrap whole part,
By ressembling processing, it becomes possible to ensure that boxed units entirety meets Eligibility requirements, reduce production cost, reduce economy and damage
Lose.
Summary of the invention
Present invention aims to above-mentioned the problems of the prior art, it is provided that the dimension of a kind of engine housing molectron
Repair method, it is possible to ensure on the basis of meeting job requirement, farthest reduce loss from spoilage, and simple to operate, high
Effect.
To achieve these goals, the technical solution used in the present invention comprises the steps:
The first step, inspection dimension discrepancy position, find out dimension discrepancy and change part, and using dimension overproof position as base
Standard, in conjunction with dimension line relation, determines and changes part from what the extension of dimension overproof position related to；
Second step, all carry out dismantling and re-starting assembling by the part that changes determined；
3rd step, the boxed units after ressembling is tested, if all sizes all meet the requirements, keep in repair conjunction
Lattice.
Described benchmark includes datum level and datum hole, changes part in unloading process, if normal condition keeps constant,
Estimate this selection of datum the most effective.
The described first step is checking that dimension discrepancy position is with the hole in boxed units as origin object.
Over Difference Hole is determined when changeing part, it is only necessary to change the hole lining in boxed units, then by digital control processing
The position of heart adjusting hole cover plate.
Described Over Difference Hole is to need to ensure the inside and outside double-hole of concentricity, and endoporus is positioned on boxed units inner chamber, outward
Hole is positioned on blind patch.
Check when boxed units after ressembling is tested by described 3rd step that project includes concentricity and beats
Amount.
Compared with prior art, the present invention has following beneficial effect: change part by finding out dimension discrepancy, and by chi
Very little overproof position, as benchmark, in conjunction with dimension line relation, determines and extends all parts that change related to from dimension overproof position, this
Invention changes the determination process of part quickly, comprehensively.For facing the boxed units scrapped, the method is used to save processing, energy
Enough need not scrap whole part, only scrap one or several assembly parts thereon, by ressembling processing, thus pay one
Qualified boxed units, dramatically saves on production cost, has saved baroque boxed units and has directly scrapped and cause
Loss.
Further, the present invention is checking that dimension discrepancy position, with the hole in boxed units as origin object, surpasses
Difference hole is the inside and outside double-hole needing to ensure concentricity, and endoporus is positioned on boxed units inner chamber, and exit orifice is positioned on blind patch, and
And Over Difference Hole determined when changeing part, it is only necessary to change the hole lining in boxed units, then adjusted by numerical control machining center
The position of blind patch.Owing to the blind patch on casing is also a complicated casting molectron, at part through on probation, work as nexine
After wearing and tearing in hole, prior art is to scrap whole molectron or together replaced with blind patch by hole lining, and the present invention changes
After the lining of hole, utilize numerical control machining center that the position of blind patch is adjusted, for repairing accurate macropore, both saved
Whole boxed units, has saved again the blind patch on casing, also further such that working (machining) efficiency is improved.
Accompanying drawing explanation
The overall structure schematic diagram of Fig. 1 engine housing molectron；
Fig. 2 (a) engine housing molectron right boring hole site top view；
Fig. 2 (b) engine housing molectron right boring hole site front view；
Fig. 2 (c) engine housing molectron right boring hole site side view；
The overproof schematic diagram in Fig. 3 hole site；
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
Seeing Fig. 1, Fig. 2 (a), Fig. 2 (b), Fig. 2 (c), Fig. 3, for certain model engine housing molectron, its profile chi
Very little for 500mm × 500mm × 330mm, in rectangular shape, it is dispersed with various PRECISION HOLE, and is assembled with 131 parts,
Its woollen is casting alloy part, and manufacturing cycle length, difficulty are big, and the work flow of process mainly has that milling is hexahedro, milling profile, to bore boring big
Little PRECISION HOLE, grinding, tapping, assembling, air-tight test etc., and japanning, anodized extraordinary operation, processing dimension amounts to
289, every cost of input is the highest.
This part shape is complicated, and dimensional accuracy is high, and the processing content of right boring hole operation is mainly 4 accurate macropores, and wherein 3
Individual is double-hole.4 groups of precision macropores, size is respectively(double-deck),(double-deck),(double-deck),(monolayer), and have 14 technology requirements, such as concentricity, jerk value etc..
Analyze the coverage of dimension discrepancy: dimension discrepancy is holeIntersection degreeSuper
Difference reaches about 0.13, and this result makes part be in the state of scrapping.Over Difference HoleBe in bilayer nexine, nexine hole with
Outer hole has the technology requirement of concentricity 0.02, and ectonexine hole must form by Combined machining, guarantee concentricity precision.Cause
This, nexine holeOverproof, outer holeInvolved the most therewith.
Analyze, determine and change part: Over Difference HoleNexine hole, position on assembly parts A91150228 (hole lining),
May determine that the 1st, to change part be this sleeve.With Over Difference HoleRelated size examination, has 2, i.e. size
150.5 ± 0.08 and 145.5 ± 0.08, the key element pointed by the two size is other 2 double-holes, Hole respectively on hole lining A91150229, A91150230, these 2 hole linings
It is also required to dismantle.Due to outer holeAlso being involved, box cover is also required to change.So demolition part is defined as 3
Individual hole lining adds 1 cover plate.
Benchmark is analyzed: the benchmark in the hole that 3 needs re-work is identical, i.e. part datum level, and 2 datum holes ч, ц,
In unloading process, normal condition is the most unchanged, and therefore, benchmark is reliable and effective.
Specific operation process is as follows:
(1) dismantle cover plate A91159002Z1 (not scrapping, change corresponding aperture lining)；
(2) dismantle 3 linings A91150228, A91150229, A91150230；
(3) new lining is assembled；
(4) assemble and adjust cover plate (work in-process is carried out in the heart)；
(5) bore hole again；
(6) inspection；
(7) part recovers normal process flow process.
Claims (6)
1. the method for maintaining of an engine housing molectron, it is characterised in that comprise the steps:
The first step, inspection dimension discrepancy position, find out dimension discrepancy and change part, and using dimension overproof position as benchmark,
In conjunction with dimension line relation, determine and change part from what the extension of dimension overproof position related to；
Second step, all carry out dismantling and re-starting assembling by the part that changes determined；
3rd step, testing the boxed units after ressembling, if all sizes all meet the requirements, it is qualified to keep in repair.
The method for maintaining of engine housing molectron the most according to claim 1, it is characterised in that: described benchmark includes base
Quasi-face and datum hole, change part in unloading process, if normal condition keeps constant, estimates this selection of datum the most effective.
The method for maintaining of engine housing molectron the most according to claim 1, it is characterised in that: the described first step is checking
Dimension discrepancy position is with the hole in boxed units as origin object.
The method for maintaining of engine housing molectron the most according to claim 1, it is characterised in that: Over Difference Hole is determined and tears open
When changing part, it is only necessary to change the hole lining in boxed units, then by the position of numerical control machining center adjusting hole cover plate.
The method for maintaining of engine housing molectron the most according to claim 4, it is characterised in that: described Over Difference Hole is for needing
The inside and outside double-hole of concentricity to be ensured, endoporus is positioned on boxed units inner chamber, and exit orifice is positioned on blind patch.
The method for maintaining of engine housing molectron the most according to claim 1, it is characterised in that: described 3rd step is to again
Check when boxed units after assembling is tested that project includes intersection degree, concentricity and jerk value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767088.9A CN106271367A (en) | 2016-08-29 | 2016-08-29 | A kind of method for maintaining of engine housing molectron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767088.9A CN106271367A (en) | 2016-08-29 | 2016-08-29 | A kind of method for maintaining of engine housing molectron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106271367A true CN106271367A (en) | 2017-01-04 |
Family
ID=57675745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610767088.9A Pending CN106271367A (en) | 2016-08-29 | 2016-08-29 | A kind of method for maintaining of engine housing molectron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106271367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705905A (en) * | 2021-01-08 | 2021-04-27 | 成都国营锦江机器厂 | Method for repairing BP-14 main reducer driven spiral bevel gear assembly |
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|---|---|---|---|---|
| CN101581260A (en) * | 2009-04-10 | 2009-11-18 | 南车戚墅堰机车有限公司 | Process method for overhauling main bearing hole of diesel engine cylinder block |
| CN102699619A (en) * | 2012-06-29 | 2012-10-03 | 南车戚墅堰机车有限公司 | Method for repairing cam axle hole of diesel engine |
| CN102990277A (en) * | 2012-08-28 | 2013-03-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing seal lining bush of low pressure turbine rotor of engine |
| CN103317297A (en) * | 2013-06-28 | 2013-09-25 | 南车戚墅堰机车有限公司 | Method of repairing crushed bush in spindle hole of diesel engine block |
| CN103433685A (en) * | 2013-09-16 | 2013-12-11 | 南车戚墅堰机车有限公司 | Bushing repairing method of diesel engine body cam hole |
| CN105522324A (en) * | 2016-01-20 | 2016-04-27 | 潍柴动力(潍坊)再制造有限公司 | Restoring method for bushing melting defect of camshaft bottom hole of cylinder block and engine cylinder block |
-
2016
- 2016-08-29 CN CN201610767088.9A patent/CN106271367A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581260A (en) * | 2009-04-10 | 2009-11-18 | 南车戚墅堰机车有限公司 | Process method for overhauling main bearing hole of diesel engine cylinder block |
| CN102699619A (en) * | 2012-06-29 | 2012-10-03 | 南车戚墅堰机车有限公司 | Method for repairing cam axle hole of diesel engine |
| CN102990277A (en) * | 2012-08-28 | 2013-03-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for replacing seal lining bush of low pressure turbine rotor of engine |
| CN103317297A (en) * | 2013-06-28 | 2013-09-25 | 南车戚墅堰机车有限公司 | Method of repairing crushed bush in spindle hole of diesel engine block |
| CN103433685A (en) * | 2013-09-16 | 2013-12-11 | 南车戚墅堰机车有限公司 | Bushing repairing method of diesel engine body cam hole |
| CN105522324A (en) * | 2016-01-20 | 2016-04-27 | 潍柴动力(潍坊)再制造有限公司 | Restoring method for bushing melting defect of camshaft bottom hole of cylinder block and engine cylinder block |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705905A (en) * | 2021-01-08 | 2021-04-27 | 成都国营锦江机器厂 | Method for repairing BP-14 main reducer driven spiral bevel gear assembly |
| CN112705905B (en) * | 2021-01-08 | 2022-11-18 | 成都国营锦江机器厂 | Method for repairing BP-14 main reducer driven spiral bevel gear assembly |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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