CN100546761C - A kind of manufacture method of motor turning pump blade - Google Patents

A kind of manufacture method of motor turning pump blade Download PDF

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Publication number
CN100546761C
CN100546761C CNB2007100686016A CN200710068601A CN100546761C CN 100546761 C CN100546761 C CN 100546761C CN B2007100686016 A CNB2007100686016 A CN B2007100686016A CN 200710068601 A CN200710068601 A CN 200710068601A CN 100546761 C CN100546761 C CN 100546761C
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China
Prior art keywords
blade
grinding
manufacture method
motor turning
turning pump
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CNB2007100686016A
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CN101058144A (en
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苏子法
庄希平
苏海空
夏祖伟
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NINGBO YONGWEI GROUP CO Ltd
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NINGBO YONGWEI GROUP CO Ltd
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Abstract

A kind of manufacture method of motor turning pump blade, mainly be made up of following steps: (1) selection: to select W~Mo for use be high-speed tool steel smelts heat by electroslag furnace and forges and roll cold rolling the becoming a useful person in back; (2) vacuum heat: the special-purpose cold rolled sheet that will choose carries out vacuum heat; (3) flaw detection: whole sheet material is detected a flaw; (4) cutting: sheet material is cut into blade shape; (5) corase grind: each face to blade is roughly ground; (6) grind: again the blade after the corase grind is carried out the grinding of S, the two-sided size of T face and flatness; (7) correct grinding: again the blade after grinding is carried out; (8) gyro-finishing: the blade after will finish grinding carries out gyro-finishing.The invention has the advantages that: the steering pump of automobile leaf quality that obtains is good, and the production efficiency height of blade, and thin thickness particularly is fit to the application of thin type blade.

Description

A kind of manufacture method of motor turning pump blade
Technical field
The present invention relates to a kind of parts of steering pump of automobile, particularly a kind of manufacture method of motor turning pump blade.
Background technology
The motor turning vane pump is wanted the energy operate as normal, and it must meet the following conditions:
1, blade is with rotor rotation the time, to move flexibly in blade groove, and promptly the blade length of stretching out rotor outer surface can change, and only in this way could form the enclosed volume of size variation, to realize oil suction, to press oil.
2, blade can be pressed on inner surface of stator reliably.
3, suitable clearance seal reliably to be arranged between blade and the blade groove.
The sealing that 4, reliable appropriate gap will be arranged between blade and valve plate, rotor end-face, the stator faces.
5, oil suction district and laminated oil zone can not intercommunications.
6, vane pump must reach certain rotating speed could work (per minute 500 change more than).
Above-mentioned condition has harsh requirement to blade, and the work characteristics of blade in vane pump is that it has more sliding friction face: blade and rotor, blade and stator, blade and valve plate, blade are bearing the hydraulic coupling and the centrifugal force of pressure oil.When blade slided along stator inner surface, friction also can make the contact position produce very high temperature.The thick more hydraulic coupling of bearing of blade is big more, and quality is also big more, too thinly then fractures because of insufficient strength.The thickness of blade can not be too thick, increases vane thickness and promptly increase blade strength, but increased the hydraulic coupling that vane thickness also increases the blade bottom, increase quality simultaneously, the centrifugal force that is produced also increases, and will the flow pulsation of pump be increased, and blade also increases along stator inner surface contact position pressure, more will cause strong heating and wearing and tearing, and thin blade makes the flow of pump more even, and it is more steady to turn round, and noise is littler, under the possible condition of intensity and toughness, the design of the blade of thin size is more desirable.Because be subjected to the restriction of manufacture method, present vane thickness is all more than 1.4mm.
Summary of the invention
Technical problem to be solved by this invention is to overcome the above-mentioned defective of prior art and manufacture method that a kind of motor turning pump blade is provided, makes its better quality, thickness thinner.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of manufacture method of motor turning pump blade is characterized in that: mainly be made up of following steps:
(1), selection: to select W~Mo for use be high-speed tool steel smelts heat by electroslag furnace and forges and roll cold rolling the becoming a useful person in back;
(2), vacuum heat: the special-purpose cold rolled sheet that will choose carries out vacuum heat;
(3), flaw detection: whole sheet material is detected a flaw;
(4), cutting: sheet material is cut into blade shape;
(5), corase grind: each face to blade is roughly ground;
(6), grind: again the blade after the corase grind is carried out the grinding of two big planar S, the two-sided size of T and flatness;
(7), correct grinding: correct grinding blade arc-shaped surface R → two side end face U, V;
(8), gyro-finishing: the blade after will finish grinding carries out gyro-finishing.
Blade after above-mentioned steps is handled meets the quality requirement of product fully.
Above-mentioned blade with earlier with W~Mo be the high-speed tool steel electroslag furnace smelt heat forge roll afterwards cold rolling, the material that obtains has that higher hardness, thermohardening and high temperature hardness, thermoplasticity are good, intensity and good-toughness, and can bear greater impact, thereby guarantee the quality of blade.
Above-mentioned W~Mo is that the chemical composition of high-speed tool steel is preferably: C 0.80~0.90; Si 0.20~0.45; Mn 0.15~0.40; P≤0.030; S≤0.030; W 5.50~6.75; Mo 4.50~5.50; Cr 3.80~4.40; V 1.75~2.20.
Compared with prior art, the invention has the advantages that:
By selecting PP Pipe Compound and a series of procedure of processing for use, as vacuum heat, cutting forming, flaw detection, corase grind, again through grinding big plane, finish grind each face, until gyro-finishing etc., the steering pump of automobile leaf quality that obtains thus is good, meet the requirement of product fully, and the production efficiency height of blade, thin thickness.
The thickness of optimum blade of the present invention is δ 1.2~1.6mm, and is littler than the thickness of existing blade, therefore particularly is fit to the application of thin type blade.
Description of drawings
The blade shape schematic diagram of Fig. 1 for processing in the embodiment of the invention.
Fig. 2 is S, T, the Q face of the blade processed in the embodiment of the invention.
Fig. 3 is R, U, the V face of the blade processed in the embodiment of the invention.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Fig. 1 is the shape schematic diagram of motor turning pump blade, and for obtaining this blade, its manufacture method is as follows:
Selection: to select W~Mo for use be high-speed tool steel smelts heat by electroslag furnace and forges and roll cold rolling the becoming a useful person in back.Adopting this material is one of key of making in qualified blade.
Vacuum heat: the vacuum heat of steel is commonly used many kinds, and the present invention also can adopt.For improving the quality of blade, the hardening heat of the vacuum heat that the present invention adopts is 1210 ℃~1230 ℃, adopts pure ammonia gas to quench, and in 560 ℃~580 ℃ three tempering, hardness reaches HRC61~65.
The present invention also is cut into above-mentioned steel the sheet material of suitable size when application of vacuum, then its integral body is put into vacuum drying oven heat treatment, and this is cut into the blade size with elder generation in the past with steel plate and goes vacuum heat to compare again, can improve treatment effeciency greatly.
Flaw detection: the steel plate after the vacuum heat is detected a flaw one by one the most handy fluorescent magnetic particle flaw detection, also available other conventional methods of detection.Material crack occurs and hardening flaw then is eliminated as steel plate, can not enter next procedure.
Cutting: described cutting is that the steel plate after vacuum heat and fluorescent penetrating inspection is stayed the grinding allowance cutting forming by the blade shape size on WEDM, can reduce surperficial burr with Wire EDM.
Corase grind: described corase grind is in proper order: corase grind S, T face → Q, U, V face, see Fig. 2, Fig. 3.
Grind: described grinding is the fine gtinding that the blade semi-finished product is carried out S, the two-sided size of T face and flatness.
Correct grinding: it is earlier the arc-shaped surface of R face to be finish grinded in proper order for described correct grinding, makes the location benchmark with the R face more afterwards, with Double End lathe correct grinding U, V face, thereby obtains accurate dimensions precision and form accuracy, as Fig. 3.
Described R arc-shaped surface is to slide along stator inner surface when steering pump is worked, the linearity of the R arc-shaped surface on the blade is directly connected to sealing and working life, the present invention is to take the emery wheel trimming wheel to become circular-arc to the R arc-shaped surface grinding of blade, along the vertically back and forth grinding of R face straight line, thereby can replace existing fully is radius is made arc swing around the center of circle horizontal grinding method with R, stops existing horizontal grinding and is easy to generate the not straight defective of R face arc-shaped surface.
Barreling: described gyro-finishing is that the blade behind each face of correct grinding is put into the tumbling mill that the graininess abrasive material is housed, tumbling at regular time and quantity, make it to remove corner angle and improve surface smoothness, by becoming the no rib in surface, bright and clean, lubricious blade after the roll cast, pass through rust prevention packaging after the cleaning and drying again, promptly become the steering pump blade finished product of high-quality.
Blade is an accurate sliding members, and the roughness of any one face or a chamfering is all very important.Q face as shown in Figure 2, though be non-working surface, it also is directly connected to the smoothness of operation of steering pump, has also taken into account the crudy of this face in the manufacturing process of the present invention.

Claims (8)

1, a kind of manufacture method of motor turning pump blade is characterized in that: mainly be made up of following steps:
(1), selection: to select W~Mo for use be high-speed tool steel smelts heat by electroslag furnace and forges and roll cold rolling the becoming a useful person in back;
(2), vacuum heat: the special-purpose cold rolled sheet that will choose carries out vacuum heat;
(3), flaw detection: whole sheet material is detected a flaw;
(4), cutting: sheet material is cut into blade shape;
(5), corase grind: each face to blade is roughly ground;
(6), grind: again the blade after the corase grind is carried out the grinding of two big planes (S, T) two-sided size and flatness;
(7), correct grinding: correct grinding blade arc-shaped surface (R) → two side end face (U, V);
(8), gyro-finishing: the blade after will finish grinding carries out gyro-finishing.
2, the manufacture method of motor turning pump blade as claimed in claim 1 is characterized in that: described steel chemical composition is: C 0.80~0.90; Si 0.20~0.45; Mn 0.15~0.40; P≤0.030; S≤0.030; W 5.50~6.75; Mo 4.50~5.50; Cr 3.80~4.40; V 1.75~2.20.
3, the manufacture method of motor turning pump blade as claimed in claim 1 or 2, it is characterized in that: the hardening heat of described vacuum heat is 1210 ℃~1230 ℃, adopt pure ammonia gas to quench, in 560 ℃~580 ℃ three tempering, hardness reaches HRC61~65.
4, the manufacture method of motor turning pump blade as claimed in claim 1 or 2 is characterized in that: the grinding of blade arc-shaped surface (R) is the vertically back and forth grinding of straight line along arc-shaped surface (R).
5, the manufacture method of motor turning pump blade as claimed in claim 3 is characterized in that: the grinding of blade arc-shaped surface (R) is the vertically back and forth grinding of straight line along arc-shaped surface (R).
6, the manufacture method of motor turning pump blade as claimed in claim 1 or 2 is characterized in that: described corase grind is corase grind two big planes (S, T) → inoperative bottom surface (Q) → two side end face (U, V) in proper order.
7, the manufacture method of motor turning pump blade as claimed in claim 1 or 2 is characterized in that: described flaw detection is a fluorescent magnetic particle flaw detection.
8, the manufacture method of motor turning pump blade as claimed in claim 1 or 2 is characterized in that: the described Wire EDM that is cut into.
CNB2007100686016A 2007-05-11 2007-05-11 A kind of manufacture method of motor turning pump blade Active CN100546761C (en)

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Application Number Priority Date Filing Date Title
CNB2007100686016A CN100546761C (en) 2007-05-11 2007-05-11 A kind of manufacture method of motor turning pump blade

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Application Number Priority Date Filing Date Title
CNB2007100686016A CN100546761C (en) 2007-05-11 2007-05-11 A kind of manufacture method of motor turning pump blade

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CN101058144A CN101058144A (en) 2007-10-24
CN100546761C true CN100546761C (en) 2009-10-07

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102240988A (en) * 2011-06-20 2011-11-16 无锡科博增压器有限公司 Diamond wheel used for processing R wall of turbine
CN103953547B (en) * 2014-04-30 2016-08-24 宁波甬微集团有限公司 The manufacture method of compressor sliding blade
CN104722594A (en) * 2015-03-19 2015-06-24 河南理工大学 Manufacturing method of large-width eutectic structure aluminium-based brazing filler metal slices
CN105499997B (en) * 2015-11-23 2017-07-18 辽宁工程技术大学 A kind of automatic rolling of blade and polishing all-in-one
CN107443020A (en) * 2017-08-17 2017-12-08 万世泰金属工业(昆山)有限公司 A kind of metal surface batch processing processing method
CN113453845B (en) * 2019-02-20 2023-05-30 杰富意钢铁株式会社 Grinding method for steel sheet, manufacturing method for steel bar, and manufacturing method for wire rod
CN110296075B (en) * 2019-05-26 2021-01-26 全兴精工集团有限公司 Steering oil pump
CN110227912B (en) * 2019-06-19 2021-04-16 缙云县耐而特机械制造有限公司 Manufacturing method of vane pump
CN110273105B (en) * 2019-07-30 2020-10-02 攀钢集团江油长城特殊钢有限公司 High-speed tool steel and preparation method thereof
CN113618341A (en) * 2021-08-23 2021-11-09 成都市新美加机械设备制造有限公司 Support plate machining process

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