CN102825431A - Machining method of high-abrasion resistance valve core - Google Patents

Machining method of high-abrasion resistance valve core Download PDF

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Publication number
CN102825431A
CN102825431A CN2012103347503A CN201210334750A CN102825431A CN 102825431 A CN102825431 A CN 102825431A CN 2012103347503 A CN2012103347503 A CN 2012103347503A CN 201210334750 A CN201210334750 A CN 201210334750A CN 102825431 A CN102825431 A CN 102825431A
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CN
China
Prior art keywords
cylindrical
processing
workpiece
grinding
centre bore
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CN2012103347503A
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Chinese (zh)
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CN102825431B (en
Inventor
吴晓霞
叶义书
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贵州凯星液力传动机械有限公司
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Priority to CN201210334750.3A priority Critical patent/CN102825431B/en
Publication of CN102825431A publication Critical patent/CN102825431A/en
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Publication of CN102825431B publication Critical patent/CN102825431B/en

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Abstract

The invention discloses a machining method of a high-abrasion resistance valve core. The method comprises a material preparing step, a turning step, a heat treatment step, a clinching step, a grinding step, a clinching step, a surface treatment step, a grinding step, a clinching step and the like. The valve core machined by the method is abrasion resistant, light in weight and stable in quality, and can meet the using performance of a precise control valve.

Description

A kind of processing method of high-wearing feature spool
Technical field
The present invention relates to a kind of processing method of high-wearing feature spool, belong to field of machining.
Background technology
Spool is the important parts in the control valve; For wearability and the manufacturability that improves spool; The spool material is selected steel usually for use, but the steel spool focus on the performance that influences control valve in the accurate control valve, particularly bulky valve core certainly; The performance that influences control valve is bigger, causes the control valve cisco unity malfunction.Designed a kind of high-wearing feature spool, the material of its spool is aluminium alloy, and is in light weight for this reason, the steel part that surperficial wearability after treatment is equivalent to harden.This kind spool is wear-resisting, in light weight, thereby has satisfied the serviceability of control valve, has stablized product quality.
Summary of the invention
The technical problem that the present invention will solve is: a kind of processing method of in light weight, high-wearing feature spool is provided, and through processing method of the present invention, the spool of processing is wear-resisting, in light weight, steady quality, thereby satisfies the serviceability of control valve.
The present invention is achieved in that it may further comprise the steps:
The first, get the raw materials ready: aluminium alloy bar;
The second, Vehicle Processing: each grade of Vehicle Processing cylindrical and cannelure, and drill centers, cylindrical φ d1, cylindrical φ d2 are processed as d1max+ (0.15~0.35) mm, d2max+ (0.15~0.35) mm respectively, and all the other are machined to requirement;
Three, heat treatment: artificial aging;
Four, pincers processing: repair and grind 60 ° of conical surfaces of two ends centre bore;
Five, mill processing: be loaded on cylindrical φ d2 end with heart carrier; The Double Tops pin of lathe holds out against the two ends centre bore; Heart carrier drives the workpiece rotation, and cylindrical grinding φ d1 is processed as d1min-(0.01~0.02) mm, tolerance is h6; The cylindrical grinding φ d2 that uses the same method is processed as d2min-(0.01~0.02) mm, tolerance is h6;
Six, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm;
Seven, surface treatment: hard anode sunization; Require to confirm the hard anodizing layer thickness by design document requirement hard anodizing layer thickness and grinding; According to the size and the structure of workpiece, between the electrode of surface processing equipment and the workpiece with conduction good wire or metal bar connect, be fixed to wire or metal bar with screw the electrode union end place of surface processing equipment; Making the paper clip formula with the wire of workpiece union end; Connect with the non-mating surface of workpiece then, perhaps making external screw thread with the metal bar of workpiece union end, the internal thread with the workpiece termination connects again;
Eight, mill processing: be loaded on cylindrical φ d2 end with heart carrier, the Double Tops pin of lathe holds out against the two ends centre bore, and heart carrier drives the workpiece rotation; Cylindrical grinding φ d1 is to requiring; Guarantee cylindricity e1 simultaneously, the cylindrical grinding φ d2 that uses the same method guarantees cylindricity e2 and axiality φ f simultaneously to requiring;
Nine, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm.
Compared with prior art, wear-resisting, in light weight, the steady quality of spool of the present invention processing can satisfy the serviceability of accurate control valve fully.
Description of drawings
Fig. 1 is the sketch map that needs the spool of processing
The specific embodiment
Embodiments of the invention: with Fig. 1 is that example describes.
1, gets the raw materials ready: select 6A02-T6GB/T3191-1998 aluminium alloy bar for use.
2, Vehicle Processing:
(1) hard three-jaw folder cylindrical φ d2 end, car one end face, brill, car centre bore and screwed hole, the tailstock thimble holds out against centre bore, rough turn cylindrical φ d1, made allowance.
(2) soft three-jaw presss from both sides car end cylindrical φ d1, the car other end, and drill centers, the tailstock thimble holds out against centre bore, rough turn cylindrical φ d2, made allowance.
(3) soft three-jaw folder cylindrical φ d1, the tailstock thimble holds out against centre bore, half finish turning cylindrical φ d2, cylindrical stays the finish turning surplus, and the cannelure of car φ d2 section is to requiring.The cannelure of turning φ d1 and this section thereof uses the same method.
(4) the main shaft three-jaw presss from both sides a thimble, and revises 60 ° of conical surfaces of thimble.Be loaded on cylindrical φ d2 with heart carrier, lathe Double Tops pin holds out against the two ends centre bore, and heart carrier drives the workpiece rotation, and finish turning cylindrical φ d1 is processed as d1max+ (0.15~0.35) mm.The turning φ d2 that uses the same method is processed as d2max+ (0.15~0.35) mm.Surplus is 0.15mm~0.35mm, chooses according to work piece cylindrical and length.
3, heat treatment: artificial aging, 155 ± 5 ℃ of temperature, insulation 7h~8h.
4, pincers processing: repair and grind 60 ° of conical surfaces of two ends centre bore.
5, mill processing: be loaded on cylindrical φ d2 end with heart carrier, the Double Tops pin of lathe holds out against the two ends centre bore, and heart carrier drives the workpiece rotation, and cylindrical grinding φ d1 is processed as d1min-(0.01~0.02) mm, tolerance is h6.The cylindrical grinding φ d2 that uses the same method is processed as d2min-(0.01~0.02) mm, tolerance is h6.
6, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm.
7, surface treatment: hard anode sunization, thicknesses of layers are 0.04mm~0.06mm.Connect with the good alumite alloy bar of conduction between the electrode of surface processing equipment and the workpiece; Be fixed to aluminium alloy bars with screw the electrode union end place of surface processing equipment; Making external screw thread, and connect with the internal thread of workpiece termination with the aluminium alloy bars of workpiece union end.
8, mill processing: be loaded on cylindrical φ d2 end with heart carrier, the Double Tops pin of lathe holds out against the two ends centre bore, and heart carrier drives the workpiece rotation, and cylindrical grinding φ d1 guarantees cylindricity e1 simultaneously to requiring.Use the same method cylindrical grinding φ d2 to requiring, guarantee cylindricity e2 and axiality φ f simultaneously.
9, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm.

Claims (1)

1. the processing method of a high-wearing feature spool, it is characterized in that: it comprises following technological process:
The first, get the raw materials ready: aluminium alloy bar;
The second, Vehicle Processing: each grade of Vehicle Processing cylindrical and cannelure, and drill centers, cylindrical (φ d1), cylindrical (φ d2) are processed as d1max+ (0.15~0.35) mm, d2max+ (0.15~0.35) mm respectively, and all the other are machined to requirement;
Three, heat treatment: artificial aging;
Four, pincers processing: repair and grind 60 ° of conical surfaces of two ends centre bore;
Five, mill processing: be loaded on cylindrical (φ d2) end with heart carrier; The Double Tops pin of lathe holds out against the two ends centre bore; Heart carrier drives the workpiece rotation, and cylindrical grinding (φ d1) is processed as d1min-(0.01~0.02) mm, tolerance is h6; The cylindrical grinding (φ d2) that uses the same method is processed as d2min-(0.01~0.02) mm, tolerance is h6;
Six, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm;
Seven, surface treatment: hard anode sunization; Require to confirm the hard anodizing layer thickness by design document requirement hard anodizing layer thickness and grinding; According to the size and the structure of workpiece, between the electrode of surface processing equipment and the workpiece with conduction good wire or metal bar connect, be fixed to wire or metal bar with screw the electrode union end place of surface processing equipment; Making the paper clip formula with the wire of workpiece union end; Connect with the non-mating surface of workpiece then, perhaps making external screw thread with the metal bar of workpiece union end, the internal thread with the workpiece termination connects again;
Eight, mill processing: be loaded on cylindrical (φ d2) end with heart carrier; The Double Tops pin of lathe holds out against the two ends centre bore; Heart carrier drives the workpiece rotation, and cylindrical grinding (φ d1) guarantees cylindricity e1 simultaneously to requiring; Use the same method cylindrical grinding (φ d2) to requiring, guarantee cylindricity e2 and axiality φ f simultaneously;
Nine, pincers processing: repair burr clearly, the sharp edge rounding is not more than 0.05mm.
CN201210334750.3A 2012-09-07 2012-09-07 Machining method of high-abrasion resistance valve core CN102825431B (en)

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CN102825431B CN102825431B (en) 2015-01-07

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506814A (en) * 2013-09-27 2014-01-15 巨隆集团芜湖兴隆液压有限公司 Manufacturing method for valve element component
CN103711934A (en) * 2013-12-31 2014-04-09 玉环县勃特铜业有限公司 Valve core sleeve in fast-opening valve core and machining method of valve core sleeve
CN104057247A (en) * 2014-05-30 2014-09-24 太仓美晶机械制造有限公司 Manufacturing method for precise valve element of hydraulic servo valve
WO2015013970A1 (en) * 2013-08-02 2015-02-05 恒川国际股份有限公司 Water tap water-control spool and method for manufacturing same
CN105033570A (en) * 2015-06-02 2015-11-11 无锡阳工机械制造有限公司 Machining method for valve element of reversing valve
CN105458627A (en) * 2015-12-12 2016-04-06 贵州凯星液力传动机械有限公司 Machining method for thin-wall valve element with high-quality interchangeability
CN105537885A (en) * 2016-03-03 2016-05-04 布志刚 Machining method of valve element
CN106151140A (en) * 2015-04-28 2016-11-23 徐工集团工程机械股份有限公司 A kind of Environment-friendlywear-resistant wear-resistant spool and hydraulic valve
CN106181242A (en) * 2016-07-26 2016-12-07 贵州凯星液力传动机械有限公司 A kind of automobile-used down hill retarder controls the processing method of bar
CN107160116A (en) * 2017-07-25 2017-09-15 苏州市鑫渭阀门有限公司 Carbon steel valve element preparation method for petroleum pipeline
CN107598494A (en) * 2017-09-28 2018-01-19 中国航发动力股份有限公司 A kind of processing method of spiral elasticity back-up ring
CN110814647A (en) * 2019-11-04 2020-02-21 中国万宝工程有限公司 Control valve core and machining method thereof

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015013970A1 (en) * 2013-08-02 2015-02-05 恒川国际股份有限公司 Water tap water-control spool and method for manufacturing same
CN104842124B (en) * 2013-09-27 2017-02-01 巨隆集团芜湖兴隆液压有限公司 Reversing valve element assembly manufacturing method
CN103506814A (en) * 2013-09-27 2014-01-15 巨隆集团芜湖兴隆液压有限公司 Manufacturing method for valve element component
CN104842124A (en) * 2013-09-27 2015-08-19 巨隆集团芜湖兴隆液压有限公司 Reversing valve element assembly manufacturing method
CN103711934A (en) * 2013-12-31 2014-04-09 玉环县勃特铜业有限公司 Valve core sleeve in fast-opening valve core and machining method of valve core sleeve
CN104057247A (en) * 2014-05-30 2014-09-24 太仓美晶机械制造有限公司 Manufacturing method for precise valve element of hydraulic servo valve
CN106151140A (en) * 2015-04-28 2016-11-23 徐工集团工程机械股份有限公司 A kind of Environment-friendlywear-resistant wear-resistant spool and hydraulic valve
CN106151140B (en) * 2015-04-28 2018-08-14 徐工集团工程机械股份有限公司 A kind of Environment-friendlywear-resistant wear-resistant spool and hydraulic valve
CN105033570A (en) * 2015-06-02 2015-11-11 无锡阳工机械制造有限公司 Machining method for valve element of reversing valve
CN105458627A (en) * 2015-12-12 2016-04-06 贵州凯星液力传动机械有限公司 Machining method for thin-wall valve element with high-quality interchangeability
CN105537885A (en) * 2016-03-03 2016-05-04 布志刚 Machining method of valve element
CN106181242A (en) * 2016-07-26 2016-12-07 贵州凯星液力传动机械有限公司 A kind of automobile-used down hill retarder controls the processing method of bar
CN107160116A (en) * 2017-07-25 2017-09-15 苏州市鑫渭阀门有限公司 Carbon steel valve element preparation method for petroleum pipeline
CN107598494A (en) * 2017-09-28 2018-01-19 中国航发动力股份有限公司 A kind of processing method of spiral elasticity back-up ring
CN110814647A (en) * 2019-11-04 2020-02-21 中国万宝工程有限公司 Control valve core and machining method thereof

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