CN102909519A - Repair method of bolt hole of machine body cylinder - Google Patents
Repair method of bolt hole of machine body cylinder Download PDFInfo
- Publication number
- CN102909519A CN102909519A CN2012104729401A CN201210472940A CN102909519A CN 102909519 A CN102909519 A CN 102909519A CN 2012104729401 A CN2012104729401 A CN 2012104729401A CN 201210472940 A CN201210472940 A CN 201210472940A CN 102909519 A CN102909519 A CN 102909519A
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- Prior art keywords
- swivel nut
- bolt hole
- screw
- body cylinder
- restorative procedure
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Abstract
The invention relates to the technical field of repair methods, in particular to a repair method of a bolt hole of a machine body cylinder. The repair method includes the following steps: expanding and measuring the bolt hole; turning a bolt sleeve; cleaning and tentatively assembling the bolt hole and the bolt sleeve; coating thread locking reagents and performing shaping; and performing measurement and detection. The repair method of the bolt hole of the machine body cylinder is simple, enhances strength of the bolt hole, improves accuracy of the bolt hole, solves the problem that the bolt hole is too large in aperture, improves processing qualified rate of the bolt hole of the cylinder, accordingly reduces rejection rate and loss of a machine body, and can be used and popularized easily.
Description
Technical field
The present invention relates to a kind of technical field of restorative procedure, especially a kind of restorative procedure of body cylinder screw.
Background technology
Body is skeleton and the Key basic parts of diesel engine, and its blank is block cast spheroidal graphite cast-iron.On body cylinder-bore plane 64 screws are arranged, by bolt cylinder power packages such as reinforcing sleeve, cylinder head, piston, connecting rod, cylinder jacket, rocking arm and air valve etc. are installed on the body cylinder-bore plane, specification is M36X2.Power packages is stressed larger in working process of diesel engine, so the bolt cylinder hole is one of very important on the body and crucial screw, and its requirement on machining accuracy is higher, mostly finishes by Cutter Body Processing with Machining Center.But the shrinkage cavity that exists owing to spray in process is loose be mingled with and process in the reasons such as damage of cutter, cause aperture, bolt cylinder hole bigger than normal, can't process qualified screw thread, cause body to use.Because the body price is higher, about 500,000/only, in case the body loss from spoilage is huge.
Summary of the invention
For thereby the processing method that overcomes existing bolt cylinder hole easily causes the aperture deficiency that causes the low and easy increase loss of qualification rate bigger than normal, the invention provides a kind of restorative procedure of body cylinder screw.
The technical solution adopted for the present invention to solve the technical problems is: a kind of restorative procedure of body cylinder screw, its method may further comprise the steps: reaming and measure bolt hole → car swivel nut → cleaning bolt hole and swivel nut and trial assembly → be coated with the thread locking agent and repair file → measurement and check.
According to another embodiment of the invention, when further comprising reaming and measuring bolt hole, the processing of defective screw is enlarged, and be processed into the M48X2 bolt hole, screw hole dimensions and the degree of depth of the M48X2 bolt hole of processing are measured.
According to another embodiment of the invention, when further comprising the car swivel nut, by measured screw practical structures size, the corresponding swivel nut of car, swivel nut internal and external threads answer the clamped one time car to go out, and axiality is 0.02mm, and swivel nut length is greater than screw hole depth 1.0mm.
According to another embodiment of the invention, further comprise when cleaning bolt hole and swivel nut and trial assembly, cleaning and cleaning bolt hole iron filings and greasy dirt foreign material clean swivel nut simultaneously, by the swivel nut screwing tool swivel nut is screwed in the screw, it is namely qualified that swivel nut is higher than the cylinder-bore plane.
According to another embodiment of the invention, further comprise when being coated with the thread locking agent, swivel nut is screwed out in screw, evenly coat the thread locking agent in the swivel nut thread surface, then with the swivel nut screwing tool swivel nut screw-in is expanded in the screw, first with open-end wrench with the swivel nut pretension, with the torque spanner of 200Nm swivel nut is wrenched again, at last after the thread locking agent is dry and hard, check that with dial gauge swivel nut exceeds the size on cylinder-bore plane, repair file with file and metallographic rubber to exceeding the swivel nut face by pincers, repair to the 0.02mm on its plane.
According to another embodiment of the invention, when further comprising measurement and check, with three coordinate measuring machine the swivel nut after repairing is carried out the inspection of distance, position degree, perpendicularity and flatness in the heart in the swivel nut.
The invention has the beneficial effects as follows, the restorative procedure of this body cylinder screw is fairly simple, strengthened the intensity of bolt hole, improved the precision of bolt hole, solved bolt hole aperture problem bigger than normal, improved the passing rate of processing in bolt cylinder hole, thereby reduced scrappage and the loss of body, be easy to use and promote.
The specific embodiment
A kind of restorative procedure of body cylinder screw, its method may further comprise the steps: reaming and measure bolt hole → car swivel nut → cleaning bolt hole and swivel nut and trial assembly → be coated with the thread locking agent and repair file → measurement and check.
Reaming and when measuring bolt hole enlarges defective screw processing, and is processed into the M48X2 bolt hole, and screw hole dimensions and the degree of depth of the M48X2 bolt hole of processing are measured; By measured screw practical structures size, the corresponding swivel nut of car, swivel nut internal and external threads answer the clamped one time car to go out, and axiality is 0.02mm, and swivel nut length should greater than about screw hole depth 1.0mm, be reserved swivel nut equating surplus, swivel nut material Q235-A or 45 steel; Iron filings and the greasy dirt foreign material of cleaning and cleaning body M48X2 bolt hole clean swivel nut simultaneously; By the swivel nut screwing tool swivel nut is screwed in and to see in the screw whether swivel nut is higher than the cylinder-bore plane, and it is qualified to be higher than; Then swivel nut is screwed out in screw, evenly coat the agent of high strength thread locking in the swivel nut thread surface; Again with the swivel nut screwing tool with swivel nut screw in expand in the screw, first with open-end wrench with the swivel nut pretension, with the torque spanner of 200Nm swivel nut is wrenched again; After the thread locking agent is dry and hard, check that with dial gauge swivel nut exceeds the size on cylinder-bore plane, repair file with file and metallographic rubber to exceeding the swivel nut face by pincers, repair to the 0.02mm on its plane; With three coordinate measuring machine the swivel nut after repairing is carried out distance, position degree, perpendicularity, flatness inspection in the heart in the swivel nut at last, make it meet drawing requirement.
Wherein, the using method of swivel nut screwing tool is: at first with hand screw rod is screwed in 2/3 degree of depth in the swivel nut M36X2 screwed hole, can add lubricating oil; Again locking nut is threaded to the swivel nut end contact and with open-end wrench screw rod and swivel nut to be locked mutually and is integral; Then screw in the M48X2 screw that body enlarges swivel nut and pretension with open-end wrench by the flat body of screw rod; Torque spanner with 200Nm inserts in the screw rod end square hole that matches with it again, and swivel nut is wrenched; With open-end wrench locking nut is unclamped at last, screw rod is screwed out from screw.
The restorative procedure of this body cylinder screw is fairly simple, has strengthened the intensity of bolt hole, has improved the precision of bolt hole, solved bolt hole aperture problem bigger than normal, improved the passing rate of processing in bolt cylinder hole, thereby reduced scrappage and the loss of body, be easy to use and promote.
Claims (6)
1. the restorative procedure of a body cylinder screw is characterized in that, its method may further comprise the steps: reaming and measure bolt hole → car swivel nut → cleaning bolt hole and swivel nut and trial assembly → be coated with the thread locking agent and repair file → measurement and check.
2. the restorative procedure of body cylinder screw according to claim 1 is characterized in that, reaming and when measuring bolt hole enlarges defective screw processing, and is processed into the M48X2 bolt hole, and screw hole dimensions and the degree of depth of the M48X2 bolt hole of processing are measured.
3. the restorative procedure of body cylinder screw according to claim 1 is characterized in that, during the car swivel nut, by measured screw practical structures size, the corresponding swivel nut of car, swivel nut internal and external threads answer the clamped one time car to go out, axiality is 0.02mm, and swivel nut length is greater than screw hole depth 1.0mm.
4. the restorative procedure of body cylinder screw according to claim 1, it is characterized in that, when cleaning bolt hole and swivel nut and trial assembly, cleaning and cleaning bolt hole iron filings and greasy dirt foreign material, clean simultaneously swivel nut, by the swivel nut screwing tool swivel nut is screwed in the screw, it is namely qualified that swivel nut is higher than the cylinder-bore plane.
5. the restorative procedure of body cylinder screw according to claim 1, it is characterized in that, when being coated with the thread locking agent, swivel nut is screwed out in screw, evenly coat the thread locking agent in the swivel nut thread surface, then with the swivel nut screwing tool swivel nut screw-in is expanded in the screw, first with open-end wrench with the swivel nut pretension, with the torque spanner of 200Nm swivel nut is wrenched again, at last after the thread locking agent is dry and hard, check that with dial gauge swivel nut exceeds the size on cylinder-bore plane, repair file with file and metallographic rubber to exceeding the swivel nut face by pincers, repair to the 0.02mm on its plane.
6. the restorative procedure of body cylinder screw according to claim 1 is characterized in that, when measurement and check, with three coordinate measuring machine the swivel nut after repairing is carried out the inspection of distance, position degree, perpendicularity and flatness in the heart in the swivel nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472940.1A CN102909519B (en) | 2012-11-21 | 2012-11-21 | The restorative procedure of machine body cylinder screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210472940.1A CN102909519B (en) | 2012-11-21 | 2012-11-21 | The restorative procedure of machine body cylinder screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102909519A true CN102909519A (en) | 2013-02-06 |
| CN102909519B CN102909519B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210472940.1A Active CN102909519B (en) | 2012-11-21 | 2012-11-21 | The restorative procedure of machine body cylinder screw |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209692A (en) * | 2014-08-19 | 2014-12-17 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Repairing method for threaded holes of micro car pipe inserting type rear axle housing |
| CN105537849A (en) * | 2015-12-29 | 2016-05-04 | 中车洛阳机车有限公司 | Method for restoring threaded hole of locomotive axle box pull rod seat |
| CN106015254A (en) * | 2016-07-28 | 2016-10-12 | 捷开通讯(深圳)有限公司 | Ultrathin composite screw assembly and screw hole repairing method |
| CN106271372A (en) * | 2016-09-26 | 2017-01-04 | 张家港清研再制造产业研究院有限公司 | Position, engine cylinder-body end face hole restorative procedure |
| CN106363341A (en) * | 2016-11-14 | 2017-02-01 | 张家港清研再制造产业研究院有限公司 | Engine connecting rod repairing method |
| CN109014769A (en) * | 2018-08-09 | 2018-12-18 | 中车大连机车车辆有限公司 | Crankshaft hole concentricity restorative procedure |
| CN109093319A (en) * | 2018-07-20 | 2018-12-28 | 中国航发哈尔滨东安发动机有限公司 | The repair method that Helicopter Main Reducer casing swivel nut loosens |
| CN109128682A (en) * | 2018-07-13 | 2019-01-04 | 广州中船文冲船坞有限公司 | The repair method of chip cooler |
| CN109514172A (en) * | 2018-11-19 | 2019-03-26 | 德阳东汽电站机械制造有限公司 | A kind of method of insetting sleeve repair threaded hole |
| CN109848637A (en) * | 2019-04-16 | 2019-06-07 | 哈尔滨电机厂有限责任公司 | A kind of rotor of steam turbo generator lead screw hole scorification repair process |
| CN110962378A (en) * | 2018-09-28 | 2020-04-07 | 西门子歌美飒可再生能源公司 | Method for repairing a root of a rotor blade of a wind turbine |
| CN112264763A (en) * | 2020-12-14 | 2021-01-26 | 中车戚墅堰机车有限公司 | Method for repairing bolt hole of diesel engine motor |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
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| US1371965A (en) * | 1920-02-16 | 1921-03-15 | York Percy | Wrench |
| US3254690A (en) * | 1964-10-08 | 1966-06-07 | Neuschotz Robert | Methods and apparatus for locking threaded elements and the product produced thereby |
| US3619892A (en) * | 1970-02-09 | 1971-11-16 | Irontite Products Co Inc | Method of replacing defective spark plug hole threads |
| CN102059502A (en) * | 2009-11-13 | 2011-05-18 | 广西玉柴机器股份有限公司 | Method for repairing bolt hole of cylinder cover |
-
2012
- 2012-11-21 CN CN201210472940.1A patent/CN102909519B/en active Active
Patent Citations (4)
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| US1371965A (en) * | 1920-02-16 | 1921-03-15 | York Percy | Wrench |
| US3254690A (en) * | 1964-10-08 | 1966-06-07 | Neuschotz Robert | Methods and apparatus for locking threaded elements and the product produced thereby |
| US3619892A (en) * | 1970-02-09 | 1971-11-16 | Irontite Products Co Inc | Method of replacing defective spark plug hole threads |
| CN102059502A (en) * | 2009-11-13 | 2011-05-18 | 广西玉柴机器股份有限公司 | Method for repairing bolt hole of cylinder cover |
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| 田谷蓁: "镶套法在发动机缸体主轴承螺栓孔修复中的应用", 《汽车技术》 * |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209692A (en) * | 2014-08-19 | 2014-12-17 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Repairing method for threaded holes of micro car pipe inserting type rear axle housing |
| CN105537849A (en) * | 2015-12-29 | 2016-05-04 | 中车洛阳机车有限公司 | Method for restoring threaded hole of locomotive axle box pull rod seat |
| CN106015254A (en) * | 2016-07-28 | 2016-10-12 | 捷开通讯(深圳)有限公司 | Ultrathin composite screw assembly and screw hole repairing method |
| CN106271372A (en) * | 2016-09-26 | 2017-01-04 | 张家港清研再制造产业研究院有限公司 | Position, engine cylinder-body end face hole restorative procedure |
| CN106363341B (en) * | 2016-11-14 | 2019-01-01 | 张家港清研再制造产业研究院有限公司 | A kind of engine link restorative procedure |
| CN106363341A (en) * | 2016-11-14 | 2017-02-01 | 张家港清研再制造产业研究院有限公司 | Engine connecting rod repairing method |
| CN109128682A (en) * | 2018-07-13 | 2019-01-04 | 广州中船文冲船坞有限公司 | The repair method of chip cooler |
| CN109093319A (en) * | 2018-07-20 | 2018-12-28 | 中国航发哈尔滨东安发动机有限公司 | The repair method that Helicopter Main Reducer casing swivel nut loosens |
| CN109014769A (en) * | 2018-08-09 | 2018-12-18 | 中车大连机车车辆有限公司 | Crankshaft hole concentricity restorative procedure |
| CN110962378A (en) * | 2018-09-28 | 2020-04-07 | 西门子歌美飒可再生能源公司 | Method for repairing a root of a rotor blade of a wind turbine |
| CN109514172A (en) * | 2018-11-19 | 2019-03-26 | 德阳东汽电站机械制造有限公司 | A kind of method of insetting sleeve repair threaded hole |
| CN109514172B (en) * | 2018-11-19 | 2020-04-14 | 德阳东汽电站机械制造有限公司 | Method for repairing threaded hole by bushing |
| CN109848637A (en) * | 2019-04-16 | 2019-06-07 | 哈尔滨电机厂有限责任公司 | A kind of rotor of steam turbo generator lead screw hole scorification repair process |
| CN112264763A (en) * | 2020-12-14 | 2021-01-26 | 中车戚墅堰机车有限公司 | Method for repairing bolt hole of diesel engine motor |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
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| CN102909519B (en) | 2015-12-23 |
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