CN102672441A - Light rail intermediate shaft machining process - Google Patents

Light rail intermediate shaft machining process Download PDF

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Publication number
CN102672441A
CN102672441A CN2012101329303A CN201210132930A CN102672441A CN 102672441 A CN102672441 A CN 102672441A CN 2012101329303 A CN2012101329303 A CN 2012101329303A CN 201210132930 A CN201210132930 A CN 201210132930A CN 102672441 A CN102672441 A CN 102672441A
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CN
China
Prior art keywords
allowance
axle
grinding
tooth
turning
Prior art date
Application number
CN2012101329303A
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Chinese (zh)
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CN102672441B (en
Inventor
何沛均
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重庆市江津区宏盛机械制造有限公司
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Priority to CN201210132930.3A priority Critical patent/CN102672441B/en
Publication of CN102672441A publication Critical patent/CN102672441A/en
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Publication of CN102672441B publication Critical patent/CN102672441B/en

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Abstract

The invention discloses a light rail intermediate shaft machining process which comprises blank making, normalizing, semifinishing, quenching, finish machining and final inspection. The blank making comprises blank manufacturing and shaft blank rough machining. The semifinishing comprises semi-finish turning, milling a middle section key groove and tooth molding. The finish machining comprises finish turning, milling a flat square, drilling a screw hole, turning threads, grinding a center hole, grinding an external circle, grinding teeth, rough milling an electric spark shaft end key groove. By means of the light rail intermediate shaft machining process, a machining key groove is roughly milled after gear grinding, end products are manufactured through the electric spark shaft end key groove, the key groove size and shape and position accuracy can meet requirements, and requirements for light rail high power output are met.

Description

Light rail jackshaft processing technology
Technical field
The present invention relates to a kind of gear shaft processing technology, relate in particular to a kind of light rail jackshaft processing technology.
Background technology
The light rail jackshaft is the vitals of light rail power train, is used for the transmission of dynamical system outputting power, and axle is provided with the keyway that is used to locate driving cog; But light rail is different from the common rail train; Usually the design speed per hour is higher, and dynamical system output torque is bigger, so jackshaft institute torque suspension is also bigger; Higher to the jackshaft quality requirement; Especially the keyway that is used to locate driving cog of jackshaft generally requires width of keyway to reach 18mm, tolerance 0.027, symmetry 0.2 and roughness and reaches Ra3.2, and traditional Milling Process does not reach requirement.
Therefore, need a kind of light rail jackshaft processing technology,, satisfy the needs of the high power output of light rail with the light rail jackshaft that manufacturing conforms to quality requirements.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of light rail jackshaft processing technology,, satisfy the needs of the high power output of light rail in order to the light rail jackshaft that manufacturing conforms to quality requirements.
Light rail jackshaft processing technology of the present invention comprises base, normalizing, semifinishing, quenching, fine finishining and inspection eventually, and it is characterized in that: said base comprises blank making and shaft blank roughing; Said semifinishing comprises half finish turning, mills stage casing keyway and profile of tooth moulding; Said fine finishining comprises finish turning, mills flat side, bore and attack screw, cutting thread, grinding centre bore, cylindrical grinding, roll flute, rough mill and electric spark axle head keyway;
Specifically may further comprise the steps:
A. base:
A1. blank is made, and adopts the mode machining blanks that forges or cast;
A2. shaft blank roughing, turning processing axial end, axle cylindrical, pillow block terrace, outside circle and increment face, axial end is reserved 8~12mm allowance, and all the other reserve 3~5mm allowance, and the integral surface roughness reaches Ra6.3;
B. normalizing: with tooth base heating-up temperature is to keep between 920~950 ℃ 2~3 hours, then cooling rapidly;
C. semifinishing:
C1. half finish turning, turning axial end, axle cylindrical, tooth cylindrical and pillow block terrace, each step surface place processing escape; Axial end is reserved 5~8mm allowance; The axle cylindrical is reserved 0.5~0.8 allowance, and all the other reserve 0.3~0.5 allowance, and the integral surface roughness reaches Ra3.2;
C2. mill the stage casing keyway, be positioned at tuno-miller processing stage casing, axle middle part keyway;
C3. profile of tooth moulding, upper rolling tooth machine gear hobbing processing tooth portion, tooth-face roughness reaches Ra3.2;
D. quench: integral quenching is temper again;
E. fine finishining:
E1. finish turning, axial end allowance and centering are removed in first turning, and each step surface place allowance is removed in turning then, and turning processing axle cylindrical is reserved 0.2~0.4 allowance, the reface axle first end conical surface then;
E2. mill flat side, be positioned at a first end step surface place and mill flat side, flat side mills to the step surface place but must not injure step surface;
E3. bore and attack screw, be positioned at boring of axle second end face and tapping;
E4. cutting thread is positioned at a first end cutted thread;
E5. grind centre bore, grinding shaft both ends of the surface centre bore to roughness reaches Ra0.4;
E6. cylindrical grinding; Grinding is removed axle cylindrical allowance to surface roughness and is reached Ra0.8; Grinding is removed outside circle allowance and is reached Ra1.6 to surface roughness, and the grinding axle first end conical surface to the surface roughness reaches Ra0.4, and grinding pillow block terrace to surface roughness reaches Ra1.6;
E7. roll flute, the grinding flank of tooth to surface roughness reaches Ra0.8;
E8. rough mill, be positioned at the axle first end conical surface Milling Process axle head keyway, 0.3~0.5mm allowance is reserved in axle head keyway both sides, and surface roughness reaches Ra6.3;
E9. electric spark axle head keyway, last edm forming machine tooling axle head keyway is removed its both sides allowance, and surface roughness reaches Ra3.2;
F. inspection eventually detects overall dimension and fills in the size detection report, has detected the back product warehousing.
Further, blank is made and is adopted the mode machining blanks that forges among the said step a; After the shaft blank roughing shaft blank is carried out ultrasonic examination and detect, detection method is at shaft blank surfaces coated machine oil, with supersonic reflectoscope shaft blank is carried out scanning then, and Scanning speed is less than 150mm/s.
Further, among the said step c, after the profile of tooth moulding flank is carried out chamfer machining.
Further, among the said step e, carry out stress shot blasting and magnetic powder inspection behind the roll flute and detect, during stress shot blasting tooth portion is carried out strong stress shot blasting, other position protections are handled; Magnetic powder inspection detects drying, video picture, observation and the reinspection post processing that comprises prerinse, applies bleeding agent, removes unnecessary bleeding agent, part.
The invention has the beneficial effects as follows: light rail jackshaft processing technology of the present invention, behind roll flute, rough mill processing axle head keyway earlier, be machined to finished product with electric discharge machine then, the axle head keyway size and the accuracy of form and position can reach requirement, satisfy the needs of the high power output of light rail.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is a light rail jackshaft structural representation.
The specific embodiment
Fig. 1 is a light rail jackshaft structural representation, and the light rail jackshaft processing technology of present embodiment comprises base, normalizing, semifinishing, quenching, fine finishining and inspection eventually, and it is characterized in that: said base comprises blank making and shaft blank roughing; Said semifinishing comprises half finish turning, mills stage casing keyway and profile of tooth moulding; Said fine finishining comprises finish turning, mills flat side, bore and attack screw, cutting thread, grinding centre bore, cylindrical grinding, roll flute, rough mill and electric spark axle head keyway;
Specifically may further comprise the steps:
A. base:
A1. blank is made, and adopts the mode machining blanks that forges or cast;
A2. shaft blank roughing, turning processing axial end, axle cylindrical, pillow block terrace, outside circle and increment face, axial end is reserved 8~12mm allowance, and all the other reserve 3~5mm allowance, and the integral surface roughness reaches Ra6.3;
B. normalizing: with tooth base heating-up temperature is to keep between 920~950 ℃ 2~3 hours, then cooling rapidly;
C. semifinishing:
C1. half finish turning, turning axial end, axle cylindrical, tooth cylindrical and pillow block terrace, each step surface place processing escape; Axial end is reserved 5~8mm allowance; The axle cylindrical is reserved 0.5~0.8 allowance, and all the other reserve 0.3~0.5 allowance, and the integral surface roughness reaches Ra3.2;
C2. mill stage casing keyway 3, be positioned at tuno-miller processing stage casing, axle middle part keyway 3;
C3. profile of tooth moulding, upper rolling tooth machine gear hobbing processing tooth portion 5, tooth-face roughness reaches Ra3.2;
D. quench: integral quenching is temper again;
E. fine finishining:
E1. finish turning, axial end allowance and centering are removed in first turning, and each step surface place allowance is removed in turning then, and turning processing axle cylindrical is reserved 0.2~0.4 allowance, the reface axle first end conical surface 6 then;
E2. mill flat side, be positioned at a first end 1 step surface place and mill flat side 7, flat side 7 mills to the step surface place but must not injure step surface;
E3. bore and attack screw, be positioned at 2 borings of a second end and tapping;
E4. cutting thread is positioned at a first end 1 cutted thread;
E5. grind centre bore, grinding shaft both ends of the surface centre bore to roughness reaches Ra0.4;
E6. cylindrical grinding; Grinding is removed axle cylindrical allowance to surface roughness and is reached Ra0.8; Grinding is removed outside circle allowance and is reached Ra1.6 to surface roughness, and the grinding axle first end conical surface 6 reaches Ra0.4 to surface roughness, and grinding pillow block terrace to surface roughness reaches Ra1.6;
E7. roll flute, the grinding flank of tooth to surface roughness reaches Ra0.8;
E8. rough mill, be positioned at a first end conical surface 6 Milling Process axle head keyways 4,0.3~0.5mm allowance is reserved in axle head keyway 4 both sides, and surface roughness reaches Ra6.3;
E9. electric spark axle head keyway 4, last edm forming machine tooling axle head keyway 4 is removed its both sides allowance, and surface roughness reaches Ra3.2;
F. inspection eventually detects overall dimension and fills in the size detection report, has detected the back product warehousing;
In the present embodiment, blank is made and is adopted the mode machining blanks that forges to compare with casting among the said step a, and forge piece has better mechanical performance; After the shaft blank roughing shaft blank is carried out ultrasonic examination and detect, detection method is at shaft blank surfaces coated machine oil, with supersonic reflectoscope shaft blank is carried out scanning then, and Scanning speed can guarantee blank quality less than 150mm/s, avoids internal structural flaw.
In the present embodiment, among the said step c, after the profile of tooth moulding flank is carried out chamfer machining,, guarantee tooth-shape structure to remove the burr that gear hobbing processing is produced.
In the present embodiment, among the said step e, carry out stress shot blasting and magnetic powder inspection behind the roll flute and detect, during stress shot blasting tooth portion 5 is carried out strong stress shot blasting, other position protections are handled; Magnetic powder inspection detects drying, video picture, observation and the reinspection post processing that comprises prerinse, applies bleeding agent, removes unnecessary bleeding agent, part.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (4)

1. a light rail jackshaft processing technology is characterized in that: comprise and examining at base, normalizing, semifinishing, quenching, fine finishining and end that said base comprises blank making and shaft blank roughing; Said semifinishing comprises half finish turning, mills stage casing keyway and profile of tooth moulding; Said fine finishining comprises finish turning, mills flat side, bore and attack screw, cutting thread, grinding centre bore, cylindrical grinding, roll flute, rough mill and electric spark axle head keyway;
Specifically may further comprise the steps:
A. base:
A1. blank is made, and adopts the mode machining blanks that forges or cast;
A2. shaft blank roughing, turning processing axial end, axle cylindrical, pillow block terrace, outside circle and increment face, axial end is reserved 8~12mm allowance, and all the other reserve 3~5mm allowance, and the integral surface roughness reaches Ra6.3;
B. normalizing: with tooth base heating-up temperature is to keep between 920~950 ℃ 2~3 hours, then cooling rapidly;
C. semifinishing:
C1. half finish turning, turning axial end, axle cylindrical, tooth cylindrical and pillow block terrace, each step surface place processing escape; Axial end is reserved 5~8mm allowance; The axle cylindrical is reserved 0.5~0.8 allowance, and all the other reserve 0.3~0.5 allowance, and the integral surface roughness reaches Ra3.2;
C2. mill the stage casing keyway, be positioned at tuno-miller processing stage casing, axle middle part keyway;
C3. profile of tooth moulding, upper rolling tooth machine gear hobbing processing tooth portion, tooth-face roughness reaches Ra3.2;
D. quench: integral quenching is temper again;
E. fine finishining:
E1. finish turning, axial end allowance and centering are removed in first turning, and each step surface place allowance is removed in turning then, and turning processing axle cylindrical is reserved 0.2~0.4 allowance, the reface axle first end conical surface then;
E2. mill flat side, be positioned at a first end step surface place and mill flat side, flat side mills to the step surface place but must not injure step surface;
E3. bore and attack screw, be positioned at boring of axle second end face and tapping;
E4. cutting thread is positioned at a first end cutted thread;
E5. grind centre bore, grinding shaft both ends of the surface centre bore to roughness reaches Ra0.4;
E6. cylindrical grinding; Grinding is removed axle cylindrical allowance to surface roughness and is reached Ra0.8; Grinding is removed outside circle allowance and is reached Ra1.6 to surface roughness, and the grinding axle first end conical surface to the surface roughness reaches Ra0.4, and grinding pillow block terrace to surface roughness reaches Ra1.6;
E7. roll flute, the grinding flank of tooth to surface roughness reaches Ra0.8;
E8. rough mill, be positioned at the axle first end conical surface Milling Process axle head keyway, 0.3~0.5mm allowance is reserved in axle head keyway both sides, and surface roughness reaches Ra6.3;
E9. electric spark axle head keyway, last edm forming machine tooling axle head keyway is removed its both sides allowance, and surface roughness reaches Ra3.2;
F. inspection eventually detects overall dimension and fills in the size detection report, has detected the back product warehousing.
2. light rail jackshaft processing technology according to claim 1 is characterized in that: blank is made and is adopted the mode machining blanks that forges among the said step a; After the shaft blank roughing shaft blank is carried out ultrasonic examination and detect, detection method is at shaft blank surfaces coated machine oil, with supersonic reflectoscope shaft blank is carried out scanning then, and Scanning speed is less than 150mm/s.
3. light rail jackshaft processing technology according to claim 1 is characterized in that: among the said step c, after the profile of tooth moulding flank is carried out chamfer machining.
4. light rail jackshaft processing technology according to claim 1 is characterized in that: among the said step e, carry out stress shot blasting and magnetic powder inspection behind the roll flute and detect, during stress shot blasting tooth portion is carried out strong stress shot blasting, other position protections are handled; Magnetic powder inspection detects drying, video picture, observation and the reinspection post processing that comprises prerinse, applies bleeding agent, removes unnecessary bleeding agent, part.
CN201210132930.3A 2012-04-28 2012-04-28 Light rail intermediate shaft machining process CN102672441B (en)

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Application Number Priority Date Filing Date Title
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935581A (en) * 2012-11-05 2013-02-20 宁波镇明转轴有限公司 Manufacture method of high-voltage motor mandrel
CN103111816A (en) * 2013-02-28 2013-05-22 重庆望江工业有限公司 Tri-edge shaft machining method
CN103233111A (en) * 2013-04-02 2013-08-07 浙江来源机械有限公司 Preparation process for special high-wear-resistance high-strength transmission shaft for major-diameter port machinery
CN103406735A (en) * 2013-08-20 2013-11-27 潍坊帅克机械有限责任公司 Machining method of crank shaft of robot RV speed reducer
CN103447784A (en) * 2013-09-18 2013-12-18 江国辉 Driving shaft processing technique
CN103624503A (en) * 2013-11-15 2014-03-12 重庆渝青机械配件制造有限公司 Middle shaft machining technology
CN104014988A (en) * 2014-05-20 2014-09-03 常州市道铖传动科技有限公司 Grooving technology for flange half shaft
CN104353977A (en) * 2014-11-20 2015-02-18 天润曲轴股份有限公司 Strong preloaded crankshaft machining technology
CN104384865A (en) * 2014-11-25 2015-03-04 吴中区长桥诚惠机械加工厂 Machining technology of connecting shaft
CN104439996A (en) * 2014-12-17 2015-03-25 常熟市华星精密铸件有限公司 Precision machining process of motor shaft
CN104551559A (en) * 2014-11-27 2015-04-29 卫辉市川亚冶金设备制造有限公司 Processing forming method for slide rail of sliding water gap mechanism
CN104588984A (en) * 2014-11-28 2015-05-06 江西洪都航空工业集团有限责任公司 Processing technology for stop dog cover
CN104874986A (en) * 2015-05-06 2015-09-02 柳州金茂机械有限公司 Intermediate shaft machining technology
CN106425345A (en) * 2016-12-09 2017-02-22 徐玉炜 Transmission shaft manufacturing process
CN106736320A (en) * 2016-12-30 2017-05-31 重庆纵翼机械制造有限公司 The processing method of axle
CN107152452A (en) * 2017-06-12 2017-09-12 太仓戴尔塔精密模具有限公司 A kind of microscope three axis oculi and its processing method
CN107538190A (en) * 2017-10-18 2018-01-05 博尔德南通汽车零部件有限公司 Middle axis processing technique
CN107538191A (en) * 2017-10-18 2018-01-05 博尔德南通汽车零部件有限公司 A kind of middle axis processing technique
CN108284303A (en) * 2017-11-27 2018-07-17 江阴市永兴机械制造有限公司 A kind of processing method of gear shaft key groove
CN109048240A (en) * 2018-08-10 2018-12-21 重庆迈通充磁机电设备有限责任公司 A kind of automobile steering system high density tooth centre axis processing technique
CN110227914A (en) * 2019-05-27 2019-09-13 郑州机械研究所有限公司 A kind of high-precision processing method of the gear shaft of finishing mill of high-speed wire rod mill group

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CN104493447A (en) * 2014-12-26 2015-04-08 贵州虹祥轴承有限公司 Processing technology of connecting rod shaft

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GB2386850A (en) * 2001-12-07 2003-10-01 Visteon Global Tech Inc Method of manufacturing an axle pinion gear
CN1616188A (en) * 2003-11-13 2005-05-18 扬动股份有限公司 Mechanically working process for diesel engine cam shaft
CN101042153A (en) * 2007-04-19 2007-09-26 上海汽车齿轮一厂 Universal elevator axis processing technique
CN101347896A (en) * 2008-09-05 2009-01-21 济南二机床集团有限公司 Technique for processing connecting rod bearing shell
CN101961830A (en) * 2010-11-09 2011-02-02 许昌远东传动轴股份有限公司 Transmission shaft spline shaft metal processing technique

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EP1211017A1 (en) * 2000-12-04 2002-06-05 Maschinenfabrik Berthold Hermle Aktiengesellschaft Machine tool spindle rotatably mounted in housing
GB2386850A (en) * 2001-12-07 2003-10-01 Visteon Global Tech Inc Method of manufacturing an axle pinion gear
CN1616188A (en) * 2003-11-13 2005-05-18 扬动股份有限公司 Mechanically working process for diesel engine cam shaft
CN101042153A (en) * 2007-04-19 2007-09-26 上海汽车齿轮一厂 Universal elevator axis processing technique
CN101347896A (en) * 2008-09-05 2009-01-21 济南二机床集团有限公司 Technique for processing connecting rod bearing shell
CN101961830A (en) * 2010-11-09 2011-02-02 许昌远东传动轴股份有限公司 Transmission shaft spline shaft metal processing technique

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935581A (en) * 2012-11-05 2013-02-20 宁波镇明转轴有限公司 Manufacture method of high-voltage motor mandrel
CN103111816A (en) * 2013-02-28 2013-05-22 重庆望江工业有限公司 Tri-edge shaft machining method
CN103233111A (en) * 2013-04-02 2013-08-07 浙江来源机械有限公司 Preparation process for special high-wear-resistance high-strength transmission shaft for major-diameter port machinery
CN103406735A (en) * 2013-08-20 2013-11-27 潍坊帅克机械有限责任公司 Machining method of crank shaft of robot RV speed reducer
CN103406735B (en) * 2013-08-20 2015-10-28 山东帅克机械制造股份有限公司 The processing method of robot RV reducer crank axle
CN103447784A (en) * 2013-09-18 2013-12-18 江国辉 Driving shaft processing technique
CN103447784B (en) * 2013-09-18 2015-12-23 江国辉 A kind of driving shaft processing technology
CN103624503A (en) * 2013-11-15 2014-03-12 重庆渝青机械配件制造有限公司 Middle shaft machining technology
CN104014988A (en) * 2014-05-20 2014-09-03 常州市道铖传动科技有限公司 Grooving technology for flange half shaft
CN104353977A (en) * 2014-11-20 2015-02-18 天润曲轴股份有限公司 Strong preloaded crankshaft machining technology
CN104384865A (en) * 2014-11-25 2015-03-04 吴中区长桥诚惠机械加工厂 Machining technology of connecting shaft
CN104551559A (en) * 2014-11-27 2015-04-29 卫辉市川亚冶金设备制造有限公司 Processing forming method for slide rail of sliding water gap mechanism
CN104588984B (en) * 2014-11-28 2017-07-21 江西洪都航空工业集团有限责任公司 A kind of cover of retainer processing technology
CN104588984A (en) * 2014-11-28 2015-05-06 江西洪都航空工业集团有限责任公司 Processing technology for stop dog cover
CN104439996A (en) * 2014-12-17 2015-03-25 常熟市华星精密铸件有限公司 Precision machining process of motor shaft
CN104439996B (en) * 2014-12-17 2016-11-30 广州博捷电机有限公司 A kind of precise machining process of motor shaft
CN104874986A (en) * 2015-05-06 2015-09-02 柳州金茂机械有限公司 Intermediate shaft machining technology
CN106425345A (en) * 2016-12-09 2017-02-22 徐玉炜 Transmission shaft manufacturing process
CN106736320A (en) * 2016-12-30 2017-05-31 重庆纵翼机械制造有限公司 The processing method of axle
CN107152452A (en) * 2017-06-12 2017-09-12 太仓戴尔塔精密模具有限公司 A kind of microscope three axis oculi and its processing method
CN107538190A (en) * 2017-10-18 2018-01-05 博尔德南通汽车零部件有限公司 Middle axis processing technique
CN107538191A (en) * 2017-10-18 2018-01-05 博尔德南通汽车零部件有限公司 A kind of middle axis processing technique
CN108284303A (en) * 2017-11-27 2018-07-17 江阴市永兴机械制造有限公司 A kind of processing method of gear shaft key groove
CN109048240A (en) * 2018-08-10 2018-12-21 重庆迈通充磁机电设备有限责任公司 A kind of automobile steering system high density tooth centre axis processing technique
CN110227914A (en) * 2019-05-27 2019-09-13 郑州机械研究所有限公司 A kind of high-precision processing method of the gear shaft of finishing mill of high-speed wire rod mill group

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