CN104493437A - Oil pump shaft machining process - Google Patents

Oil pump shaft machining process Download PDF

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Publication number
CN104493437A
CN104493437A CN201410690063.4A CN201410690063A CN104493437A CN 104493437 A CN104493437 A CN 104493437A CN 201410690063 A CN201410690063 A CN 201410690063A CN 104493437 A CN104493437 A CN 104493437A
Authority
CN
China
Prior art keywords
oil pump
pump shaft
processing
lathe
turning
Prior art date
Application number
CN201410690063.4A
Other languages
Chinese (zh)
Inventor
周金飞
石永红
周红丽
谢振北
谢振立
Original Assignee
浙江铂达科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 浙江铂达科技有限公司 filed Critical 浙江铂达科技有限公司
Priority to CN201410690063.4A priority Critical patent/CN104493437A/en
Publication of CN104493437A publication Critical patent/CN104493437A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/14Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/04Shafts or bearings, or assemblies thereof
    • F04D29/043Shafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00Manufacture
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00Manufacture
    • F05D2230/10Manufacture by removing material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00Manufacture
    • F05D2230/40Heat treatment

Abstract

An oil pump shaft machining process includes steps of 1) feeding a blank; 2) turning two end faces and perforating a central hole; 3) roughly turning an outer circle with margin of 0.5 mm; 4) performing quenched-tempered heat treatment; 5) repairing and grinding the central hole; 6) finely turning an outer circle, grooving, turning a thread, and reserving grinding allowance of 0.3 mm after finely turning the outer circle; 7) milling a key slot; 8) cold rolling a spline; 9) locally quenching the outer circle surface at high frequency; 10) annealing at the low temperature, heating to 150-180 DEG C during annealing at the low temperature and preserving temperature for 2.5 hours; 11) repairing and grinding the central hole; 12) finely grinding the outer circles. By the oil pump shaft machining process, contact positions of a machined oil pump shaft with a deep groove ball bearing, an oil seal and a slide bearing are good in wear resistance, and the machined oil pump shaft is high in small-modulus spline machining efficiency, good in tooth form structure, resistant to impact and high in strength.

Description

A kind of processing technology of oil pump shaft
Technical field:
The present invention relates to machine components manufacture field, is specifically a kind of processing technology of oil pump shaft.
Background technology:
Oil pump shaft bears alternate load, shock loading, shear stress at work, and axle portion easily cracks and easy to wear, to heat treatment and processing technology and material requirements higher, axle different parts acts on difference at work, and technological method for processing is also different.As shown in Figure 2, the position of oil pump shaft installation travelling gear 101 has keyway, the position of installation rotor 105 has low module spline, and oil pump shaft has the position of keyway and involute spline due to transmitting torque, it withstands shocks also larger with variable load; And to bear frictional force larger at the position of installing deep groove ball bearing 102, oil sealing 103 and sliding bearing 104.At present, oil pump shaft adopts mild steel 20CrMoTi material usually, and spline adopts gear-hobbing machine or gear shapping machine processing usually, and the oil pump shaft after processing also carries out carburizing and quenching process.Although the position wearability that the oil pump shaft after carburizing and quenching process contacts with deep groove ball bearing 102, oil sealing 103 and sliding bearing 104 is better, but the higher easy fracture of involute spline part hardness, again due to involute spline gear-hobbing machine or gear shapping machine processing, not only working (machining) efficiency is low, and profile of tooth institutional framework is poor, not shock-resistant, and the key tooth of low module spline is less again, when spline position is subject to impacting and variable load is larger, be easy to be interrupted, torsional deformation, cause the inefficacy of oil pump.
Summary of the invention:
The technical problem to be solved in the present invention is, a kind of processing technology of oil pump shaft is provided, the position wearability that it not only can make oil pump shaft contact with deep groove ball bearing, oil sealing and sliding bearing is better, and low module spline working (machining) efficiency is high, profile of tooth institutional framework is good, shock-resistant, intensity is high.
Technical solution of the present invention is, provides a kind of processing technology of oil pump shaft, comprises following step:
Step 1): use the blanking of 42CrMo blanks; Step 2): use lathe to through step 1) oil pump shaft turning both ends of the surface after blanking, and in both ends of the surface centering; Step 3): use lathe to through step 2) the rough turn cylindrical of oil pump shaft after processing, and the step to foreign round and on cylindrical stays the surplus of 0.5 millimeter; Step 4): to through step 3) oil pump shaft after processing carries out Tempering and Quenching; Step 5): use lathe to through step 4) centre bore in oil pump shaft both ends of the surface after heat treatment repaiies and grinds; Step 6): use lathe to through step 5) oil pump shaft after processing carries out fine turning outer circle, and on periphery grooving, cutted thread, stays 0.3 millimeter of mill amount after fine turning outer circle; Step 7): use milling machine to through step 6) oil pump shaft after processing mills out keyway; Step 8): use rolling lathe to through step 7) oil pump shaft cold breakdown after processing shuts out spline; Step 9): to through step 8) oil pump shaft after processing carries out surface high frequency Quenching Treatment for the periphery installing deep groove ball bearing, oil sealing and sliding bearing; Step 10): to through step 9) oil pump shaft after process carries out lonneal process, during lonneal, be heated to 150 ~ 180 degrees Celsius, and be incubated 2.5 hours; Step 11): use lathe to through step 10) centre bore in oil pump shaft both ends of the surface after process repaiies and grinds; Step 12): use grinding machine to through step 11) oil pump shaft after processing refines each cylindrical.
The processing technology of a kind of oil pump shaft of the present invention has the following advantages: the present invention adopts 42CrMo material, very good through Tempering and Quenching, cold rolling spline, surperficial local high-frequency Quenching Treatment, lonneal process, manufacturability.Tempering and Quenching makes oil pump shaft intensity, moulding and toughness better, has good comprehensive mechanical performance, has good cutting ability simultaneously; Utilize metal material plasticity at normal temperatures, go out spline by the rolling of rolling lathe and replace traditional gear hobbing or Gear Shaping spline, working (machining) efficiency is 10 ~ 12 times of gear hobbing or Gear Shaping, only take 5 ~ 8 seconds, tool wear is also little, precision is high, reduce costs, and each crystal grain evenly extends and distortion along deformation direction after the spline plastic deformation that rolling goes out, be drawn as bar shaped in threadiness, its case hardness and intensity significantly raise, and heart portion still keeps higher moulding and toughness, can bear larger impact and variable load; Periphery for installing deep groove ball bearing, oil sealing and sliding bearing on oil pump shaft carries out surface high frequency Quenching Treatment, both ensure that the wearability of oil pump shaft and deep groove ball bearing, oil sealing and sliding bearing contact site, be unlikely to again spline and keyway hardness makes spline be hit and short fission shape too firmly; The residual stress produced when not only eliminating quenching and cold rolling processing involute spline after lonneal, reduces fragility, prevents strain cracking, and stabilize fibr tissue and workpiece size, meet technological requirement.
Accompanying drawing illustrates:
Fig. 1 is the main TV structure schematic diagram of oil pump shaft;
Fig. 2 is the main TV structure schematic diagram of oil pump shaft when being provided with travelling gear, deep groove ball bearing, oil sealing, sliding bearing and rotor;
Fig. 3 is that the crystal grain of the key tooth of the spline gone out by the rolling of rolling lathe moves towards schematic diagram.
Detailed description of the invention:
Be described further below in conjunction with the processing technology of the drawings and specific embodiments to a kind of oil pump shaft of the present invention:
As shown in Figure 1, Figure 2 and Figure 3, the processing technology of a kind of oil pump shaft of the present invention comprises following step:
Step 1): use the blanking of 42CrMo blanks; Step 2): use lathe to through step 1) oil pump shaft turning both ends of the surface after blanking, and in both ends of the surface centering; Step 3): use lathe to through step 2) the rough turn cylindrical of oil pump shaft after processing, and the step to foreign round and on cylindrical stays the surplus of 0.5 millimeter; Step 4): to through step 3) oil pump shaft after processing carries out Tempering and Quenching; Step 5): use lathe to through step 4) centre bore in oil pump shaft both ends of the surface after heat treatment repaiies and grinds; Step 6): use lathe to through step 5) oil pump shaft after processing carries out fine turning outer circle, and on periphery grooving 2, cutted thread 4, stays 0.3 millimeter of mill amount after fine turning outer circle; Step 7): use milling machine to through step 6) oil pump shaft after processing mills out keyway 3; Step 8): use rolling lathe to through step 7) oil pump shaft cold breakdown after processing shuts out spline 1; Step 9): to through step 8) oil pump shaft after processing carries out surface high frequency Quenching Treatment for the periphery installing deep groove ball bearing 102, oil sealing 103 and sliding bearing 104; Step 10): to through step 9) oil pump shaft after process carries out lonneal process, during lonneal, be heated to 150 ~ 180 degrees Celsius, and be incubated 2.5 hours; Step 11): use lathe to through step 10) centre bore in oil pump shaft both ends of the surface after process repaiies and grinds; Step 12): use grinding machine to through step 11) oil pump shaft after processing refines each cylindrical.
Above-described specific embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.

Claims (1)

1. a processing technology for oil pump shaft, is characterized in that: the processing technology of described oil pump shaft comprises following step:
Step 1): use the blanking of 42CrMo blanks;
Step 2): use lathe to through step 1) oil pump shaft turning both ends of the surface after blanking, and in both ends of the surface centering;
Step 3): use lathe to through step 2) the rough turn cylindrical of oil pump shaft after processing, and the step to foreign round and on cylindrical stays the surplus of 0.5 millimeter;
Step 4): to through step 3) oil pump shaft after processing carries out Tempering and Quenching;
Step 5): use lathe to through step 4) centre bore in oil pump shaft both ends of the surface after heat treatment repaiies and grinds;
Step 6): use lathe to through step 5) oil pump shaft after processing carries out fine turning outer circle, and on periphery grooving, cutted thread, stays 0.3 millimeter of mill amount after fine turning outer circle;
Step 7): use milling machine to through step 6) oil pump shaft after processing mills out keyway;
Step 8): use rolling lathe to through step 7) oil pump shaft cold breakdown after processing shuts out spline;
Step 9): to through step 8) oil pump shaft after processing carries out surface high frequency Quenching Treatment for the periphery installing deep groove ball bearing, oil sealing and sliding bearing;
Step 10): to through step 9) oil pump shaft after process carries out lonneal process, during lonneal, be heated to 150 ~ 180 degrees Celsius, and be incubated 2.5 hours;
Step 11): use lathe to through step 10) centre bore in oil pump shaft both ends of the surface after process repaiies and grinds;
Step 12): use grinding machine to through step 11) oil pump shaft after processing refines each cylindrical.
CN201410690063.4A 2014-11-25 2014-11-25 Oil pump shaft machining process CN104493437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410690063.4A CN104493437A (en) 2014-11-25 2014-11-25 Oil pump shaft machining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410690063.4A CN104493437A (en) 2014-11-25 2014-11-25 Oil pump shaft machining process

Publications (1)

Publication Number Publication Date
CN104493437A true CN104493437A (en) 2015-04-08

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Application Number Title Priority Date Filing Date
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874986A (en) * 2015-05-06 2015-09-02 柳州金茂机械有限公司 Intermediate shaft machining technology
CN105196004A (en) * 2015-10-27 2015-12-30 衡阳纺织机械有限公司 Method for machining bearing mandrel provided with key grooves in two ends
CN105382498A (en) * 2015-12-23 2016-03-09 常熟市淼泉压缩机配件有限公司 Processing method for thin-wall inner-cavity slender shaft component
CN105666073A (en) * 2016-03-21 2016-06-15 江苏森威集团飞达股份有限公司 Machining process for electric-driving axle of new energy bus
CN106271425A (en) * 2016-08-29 2017-01-04 贵州新安航空机械有限责任公司 A kind of mechanical processing technique of connecting rod
CN106736319A (en) * 2016-12-28 2017-05-31 宾科汽车紧固件(昆山)有限公司 Truck vacuum pump push rod and its manufacture method
CN108980169A (en) * 2018-07-25 2018-12-11 湖南南方宇航高精传动有限公司 Elastic pin shaft, the component of axle sleeve Novel connection type and preparation method and gear-box
CN109128708A (en) * 2018-09-29 2019-01-04 徐州徐工履带底盘有限公司 A kind of thrust wheel wheel shaft processing method
CN109175925A (en) * 2018-10-23 2019-01-11 南京创力传动科技有限公司 The technique manufacturing method of integral type high speed rotor shafts
CN109505797A (en) * 2017-09-14 2019-03-22 柴姣姣 A kind of oil pump shaft convenient for safeguarding
CN109604964A (en) * 2018-12-26 2019-04-12 湛江明迪汽车零部件制造有限公司 A kind of processing method of big torque actuated axis
CN109732284A (en) * 2019-01-16 2019-05-10 桐乡市梧桐恒丰机械有限公司 A kind of processing technology of automobile air conditioner compressor main shaft
CN111546000A (en) * 2020-05-03 2020-08-18 南通捷越机电有限公司 Production and processing technology of high-speed rotor shaft

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WO2004024366A1 (en) * 2002-09-16 2004-03-25 American Axle & Manufacturing, Inc. One-piece axle tube housing assembly
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CN101954574A (en) * 2010-09-26 2011-01-26 中国兵器工业第五九研究所 Method for machining output shaft assembly
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CN102962637A (en) * 2012-11-01 2013-03-13 宁波镇明转轴有限公司 Manufacturing method for anti-cracking automobile oil pump drive shaft

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WO2004024366A1 (en) * 2002-09-16 2004-03-25 American Axle & Manufacturing, Inc. One-piece axle tube housing assembly
CN101220440A (en) * 2008-01-22 2008-07-16 常州艾柯轧辊有限公司 Roller and producing technique
CN101954574A (en) * 2010-09-26 2011-01-26 中国兵器工业第五九研究所 Method for machining output shaft assembly
CN102513792A (en) * 2011-12-28 2012-06-27 上海久丰汽车零件有限公司 Cold extrusion forming process for oil pump shaft for automobile
CN102615124A (en) * 2012-01-09 2012-08-01 泉州凤顺汽车零部件有限公司 Production process and production equipment for half shaft contracting rod
CN102962637A (en) * 2012-11-01 2013-03-13 宁波镇明转轴有限公司 Manufacturing method for anti-cracking automobile oil pump drive shaft

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104874986A (en) * 2015-05-06 2015-09-02 柳州金茂机械有限公司 Intermediate shaft machining technology
CN105196004A (en) * 2015-10-27 2015-12-30 衡阳纺织机械有限公司 Method for machining bearing mandrel provided with key grooves in two ends
CN105382498A (en) * 2015-12-23 2016-03-09 常熟市淼泉压缩机配件有限公司 Processing method for thin-wall inner-cavity slender shaft component
CN105666073A (en) * 2016-03-21 2016-06-15 江苏森威集团飞达股份有限公司 Machining process for electric-driving axle of new energy bus
CN106271425A (en) * 2016-08-29 2017-01-04 贵州新安航空机械有限责任公司 A kind of mechanical processing technique of connecting rod
CN106736319A (en) * 2016-12-28 2017-05-31 宾科汽车紧固件(昆山)有限公司 Truck vacuum pump push rod and its manufacture method
CN109505797A (en) * 2017-09-14 2019-03-22 柴姣姣 A kind of oil pump shaft convenient for safeguarding
CN108980169A (en) * 2018-07-25 2018-12-11 湖南南方宇航高精传动有限公司 Elastic pin shaft, the component of axle sleeve Novel connection type and preparation method and gear-box
CN109128708A (en) * 2018-09-29 2019-01-04 徐州徐工履带底盘有限公司 A kind of thrust wheel wheel shaft processing method
CN109175925A (en) * 2018-10-23 2019-01-11 南京创力传动科技有限公司 The technique manufacturing method of integral type high speed rotor shafts
CN109604964A (en) * 2018-12-26 2019-04-12 湛江明迪汽车零部件制造有限公司 A kind of processing method of big torque actuated axis
CN109732284A (en) * 2019-01-16 2019-05-10 桐乡市梧桐恒丰机械有限公司 A kind of processing technology of automobile air conditioner compressor main shaft
CN111546000A (en) * 2020-05-03 2020-08-18 南通捷越机电有限公司 Production and processing technology of high-speed rotor shaft

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Application publication date: 20150408