CN102672441A - Light rail intermediate shaft machining process - Google Patents
Light rail intermediate shaft machining process Download PDFInfo
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- 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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- 238000003754 machining Methods 0.000 title claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 30
- 238000007514 turning Methods 0.000 claims abstract description 30
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 238000010892 electric spark Methods 0.000 claims abstract description 8
- 238000010791 quenching Methods 0.000 claims abstract description 7
- 230000000171 quenching Effects 0.000 claims abstract description 7
- 230000003746 surface roughness Effects 0.000 claims description 27
- 238000005516 engineering processes Methods 0.000 claims description 13
- 238000005422 blasting Methods 0.000 claims description 9
- 206010018987 Haemorrhages Diseases 0.000 claims description 6
- 230000000740 bleeding Effects 0.000 claims description 6
- 231100000319 bleeding Toxicity 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000006247 magnetic powders Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000010721 machine oils Substances 0.000 claims description 3
- 230000004224 protection Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 206010006514 Bruxism Diseases 0.000 abstract 1
- 239000007795 chemical reaction products Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 238000005183 dynamical system Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000725 suspensions Substances 0.000 description 1
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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132930.3A CN102672441B (en) | 2012-04-28 | 2012-04-28 | Light rail intermediate shaft machining process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210132930.3A CN102672441B (en) | 2012-04-28 | 2012-04-28 | Light rail intermediate shaft machining process |
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| CN102672441A true CN102672441A (en) | 2012-09-19 |
| CN102672441B CN102672441B (en) | 2014-06-04 |
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| 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 |
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| 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 |
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| CN103447784A (en) * | 2013-09-18 | 2013-12-18 | 江国辉 | Driving shaft processing technique |
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| 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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