CN109175925A - The technique manufacturing method of integral type high speed rotor shafts - Google Patents
The technique manufacturing method of integral type high speed rotor shafts Download PDFInfo
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- CN109175925A CN109175925A CN201811232924.9A CN201811232924A CN109175925A CN 109175925 A CN109175925 A CN 109175925A CN 201811232924 A CN201811232924 A CN 201811232924A CN 109175925 A CN109175925 A CN 109175925A
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- shaft member
- gear
- blank
- diameter
- high speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses the technique manufacturing methods of integral type high speed rotor shafts, belong to machinery field, the following steps are included: first rough turn, roughing is carried out to blank axis by lathe, there are surpluses for the diameter of axle, carry out modifier treatment, modifier treatment includes quenching and high tempering, and half smart car of second processes shaft member by numerically-controlled machine tool, there are surpluses for the diameter of axle, and the gear part gear hobbing process of blank axis is reached and puts mill surplus；Heat treatment, removes stressing operations；The semifinishing turning of third road, there are surpluses；First of corase grinding, eliminates shaft member curvature；Oil boils artificial aging；Second half refines, and eliminates micro bending；4th smart car reaches last drawing requirement；Third road super grinding outer rim, is polishing to dimensional accuracy for shaft member.So that the armature spindle processed has the advantages that high finished product rate, high-precision, high rigidity, high shock resistance.
Description
Technical field
The present invention relates to machinery fields, more particularly to the technique manufacturing method of integral type high speed rotor shafts.
Background technique
Currently, high speed gear assembly is widely used in metallurgical, chemical, petroleum industry, effect is mainly master
The power bending moment speedup of dynamic motor output realizes high revolving speed power output, dragging relevant device operation.Existing high gear dress
It sets, mostly uses parallel pumping gear engagement to realize that gear wheel is arranged that is, using slow-speed shaft as input shaft in speedup function above, greatly with height
Fast axis is output shaft, and pinion gear, gear wheel and pinion gear intermeshing are arranged above.Gear-box is all made of oil lubrication, lubricating oil
After leaking, the service life of gear, bearing etc. will affect, but also environment may be polluted.And the sundries such as external oil, water into
After entering gear-box, the service performance of lubricating oil will affect, gear, bearing operation can also be had an impact.Therefore it needs to design one
The multiple tooth high speed rotor shafts of body formula improve integrated associativity to reduce the assembling complexity with gear-box, and then optimize
The quality of high-speed gear box.
High speed rotor bearing system space oscillation trajectory is complex, but stationary signal feature is presented in its vibration signal more,
Such as caused by the factors such as pure unbalance vibration and die misalignment, periodical cutting excitation, thermal deformation, periodical environmental disturbances
Vibration.Thus integrated high speed rotor shaft design and processing are to the more demanding of precision, it is desirable that are able to bear up to tens of thousands of
The vibration and excitation deformation generated when the revolving speed turned.Thus high quality, the processing technology of high-precision integration high speed armature spindle
Then it is particularly important.
Notification number is a kind of manufacture process for high-temperature wear-resistant gears of CN102240832B, including following process: A, gear blank adds
Work；B, surfacing；C, Excircle machining；D, the gear teeth are processed；First produce the common material tooth with rectangular tooth socket and rectangular toothing
Base, then the coated with hard alloy material in rectangular tooth socket, are finally processed as gear tooth slot for square shaped teeth position, and this method was both processed
The hard alloy gear teeth are gone out, have in turn avoided cutting of the cutter to cemented carbide material position when tooth processed, has thus greatly reduced pair
The requirement of cutter, while the use to cemented carbide material is reduced to the maximum extent, effectively reduce high-temperature wearable gear
Manufacturing cost.
But above-mentioned is separately fabricated processing gear, and not gear itself is fixed with shaft member to be integrated, is not presented in same
Processed on root axis a variety of different accuracies, size, size gear process, the high speed shaft of gear and axis separate machined can not
Meet the assembly needs of high-speed gear box, structural stability is not enough to support running at high speed for revolving speeds up to ten thousand with hardness, concussion
It is larger, and the process of said gear is gear hobbing of directly slotting, no revolution leeway, defect rate is higher, lacks incremental
Operation optimization, the prestressing force of interiors of products remove deficiency, and interiors of products is also easy to produce fracture and deformation hidden danger, compensation positioning deficiency.
Summary of the invention
The object of the present invention is to provide a kind of technique manufacturing methods of integral type high speed rotor shafts, so that the rotor processed
Axis has the advantages that high finished product rate, high-precision, high rigidity, high shock resistance.
Above-mentioned technical purpose of the invention has the technical scheme that the work of integral type high speed rotor shafts
Skill manufacturing method, it is characterised in that the following steps are included:
Step 1: blank forming chooses the blank of suitable dimension according to drawing requirement；
Step 2: first of turning carries out roughing to blank axis by lathe to be rough turn, the diameter of axle there are surplus be 4~
6mm carries out modifier treatment, and modifier treatment includes quenching and high tempering, improves the inner hardness of blank axis, reaches drawing and want
It asks；
Step 3: second turning, be half smart car, by numerically-controlled machine tool to shaft member process, the diameter of axle there are surplus be 3~
The gear part processing of blank axis is reached and puts mill surplus by 5mm；
Step 4: gear hobbing process carries out gear blank processing to gear part by generating, tooth socket is processed；
Step 5: heat treatment quenches the rough turn blank axis finished, shot-peening, removes stressing operations；
Step 6: the turning of third road is semifinishing, is processed by numerically-controlled machine tool to shaft member, there are surpluses to be for the diameter of axle
2.5mm~4mm；
Step 7: first of grinding machine eliminates shaft member curvature, reaches drawing requirement for corase grinding；
Step 8: oil boils processing, it is desirable that artificial aging, oil boil temperature control at 100 DEG C~180 DEG C, basis of time shaft member
Diameter control is eliminated in left and right for 24 hours and discharges microstress, the road machining stress Deng Qian after sudden fire in shaft member
The internal stress of all process steps；
Step 9: second grinding machine is half fine grinding, and oil is boiled the micro bending of the shaft member finished and deformation carries out grinding and adds
Work reaches drawing requirement；
Step 10: the 4th turning, it is by numerically-controlled machine tool to shaft member processing, dimensional accuracy, position is smart for finishing
Degree, connection precision, carry out hyperfine Vehicle Processing, reach last drawing requirement；
Step 11: third road grinding machine is super grinding outer rim, shaft member is polishing to dimensional accuracy.
By using above-mentioned technical proposal, by incremental four Che Yu tri- mill gradually to shaft blank part at
Reason, to reduce defect rate, and compensates positioning accuracy in 7 successive optimizations, guarantees processing quality, reaches drawing through examining
It is required that whole set process scheme is economical and practical, high production efficiency, and the heat treatments such as artificial aging are boiled by oil and are interspersed in the processing of vehicle mill
In the process, the internal stress for removing and discharging preceding working procedure prevents shaft member cracking and deformation, improves the shaft member service life.
Preferably, the operation of gear hobbing described in step 3 includes specific steps:
A. multiple workpieces are processed in mandrel by several gear blanks are in tandem, it is possible to reduce hobboing cutter cuts the incision of each gear blank
Time and lay day out；
B. using radial incision, when gear hobbing there are two ways to hobboing cutter incision gear blank: radial incision and axial incision；
C. knife and diagonal gear hobbing are altered using axial, when the most heavy cutter tooth of load is worn to a certain extent, by hobboing cutter along its axis
Continue to cut after to mobile a distance.
By using above-mentioned technical proposal, radial incision is shorter than axial incision stroke, cut-in timing can be saved, to major diameter
Especially prominent when hobboing cutter gear hobbing, the Load on Cutting Teeth that hobboing cutter participates in cutting differs, and abrasion is uneven, when the most heavy cutter tooth of load may wear to
When to a certain degree, continue to cut after hobboing cutter should be moved along its axis to a distance, to improve cutting-tool's used life.Diagonal rolling
Tooth is hobboing cutter while along gear blank axial feed, is also moved along hob arbor is axially consecutive, and the synthesis of two kinds of movements make the flank of tooth
Diagonal line tool marks are formed, tooth-face roughness is not only reduced, and make cutter tooth even wearing, improves the use of gear and cutter
Service life and durability, have advanced optimized manufacturing process.
Preferably, include shot-peening in step 5, shot-peening uses alloy bullet, hardness it is minimum not less than 6-7 Mohs and
There is certain toughness, rate is minimum is not less than 90% at circle, requires minimum 75% at circle rate.
By using above-mentioned technical proposal, if percentage of damage is higher when common shot-peening is processed, and it is higher to process intensity
Almost primary fragmentation, higher cost, and alloy bullet are required with adapting to the different of cleaning workpiece surface when workpiece；The spirit of cleaning
It is active big, the inner and outer surfaces of cleaning complex part and the inner wall of pipe fitting are easy, and do not limited by place.
To sum up, the invention has the following advantages:
1. gradually being handled shaft blank part by incremental four Che Yu tri- mill, to reduce defect rate；
2. and positioning accuracy is compensated in 7 successive optimizations, guarantee processing quality, through examine reach drawing requirement, it is whole
It is economical and practical to cover process program, high production efficiency；
3. and by oil boil the heat treatments such as artificial aging be interspersed in vehicle grind treatment process in, remove and discharge preceding working procedure
Internal stress prevents shaft member crackle and deformation, improves the shaft member service life.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, right combined with specific embodiments below
A specific embodiment of the invention is described in detail.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, but the present invention can be with
Implemented using other than the one described here other way, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by the specific embodiments disclosed below.
Secondly, " one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the invention
A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to
The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.
Embodiment: the technique manufacturing method of integral type high speed rotor shafts, comprising the following steps:
Step 1: blank forming chooses the blank of suitable dimension according to drawing requirement；Blank is generally chosen diameter and is slightly larger than
The blank of drawing requirement carries out step-by-step operation below to blank after selection；
Step 2: first of turning carries out roughing to blank axis by lathe to be rough turn, the diameter of axle there are surplus be 4~
The roughing tool of 6mm, 125mm, cutting speed are as follows: 119m/min, cutting depth t=2mm.And carry out modifier treatment, modifier treatment
Including quenching and high tempering, it is therefore an objective to which the inner hardness for improving blank axis reaches drawing requirement；
Step 3: second turning, be half smart car, by numerically-controlled machine tool to shaft member process, the diameter of axle there are surplus be 3~
The gear part of blank axis is reached and puts mill surplus by 5mm；Half smart car uses diameter are as follows: the roughing tool of 200mm, cutting speed are as follows:
119m/min, cutting depth t=2.2mm.
The gear hobbing operation of step 3 includes specific steps:
A. multiple workpieces are processed in mandrel by several gear blanks are in tandem, it is possible to reduce hobboing cutter cuts the incision of each gear blank
Time and lay day out.
B. using radial incision, when gear hobbing there are two ways to hobboing cutter incision gear blank: radial incision and axial incision.It is radial
Incision is shorter than axial incision stroke, can save cut-in timing, especially prominent when to large diameter disc cutter gear hobbing.
C. knife and diagonal gear hobbing are altered using axial, the Load on Cutting Teeth that hobboing cutter participates in cutting differs, and abrasion is uneven, when load most
When the cutter tooth of weight is worn to a certain extent, continue to cut after hobboing cutter should be moved along its axis to a distance, to improve cutter
Service life.Diagonal gear hobbing is hobboing cutter while along gear blank axial feed, is also moved along hob arbor is axially consecutive, two kinds of fortune
Dynamic synthesis makes the flank of tooth form diagonal line tool marks, not only reduces tooth-face roughness, and make cutter tooth even wearing, improve
Gear and cutting-tool's used life and durability, have advanced optimized manufacturing process.
Step 4: gear hobbing process carries out gear blank processing to gear part by generating, tooth socket is processed, cutting speed are as follows:
133m/min, feed speed are as follows: 80mm/min；
Step 5: heat treatment quenches the rough turn blank axis finished, shot-peening, removes stressing operations；In step 5
Including shot-peening, surface peening is carried out, i.e., bombard workpiece surface using pellet and is implanted into residual compressive stress, lifting workpieces fatigue strength
Cold machining process, shot-peening uses alloy bullet, and hardness is minimum not less than 6-7 Mohs and to have certain toughness, most at circle rate
It is low to be not less than 90%, minimum 75% is required at circle rate.If percentage of damage is higher when common shot-peening is processed, and it is higher to process intensity
Workpiece when almost primary fragmentation, higher cost, and alloy bullet required with adapting to the different of cleaning workpiece surface；Cleaning
Flexibility is big, is easy the inner and outer surfaces of cleaning complex part and the inner wall of pipe fitting, and do not limited by place.
Step 6: the turning of third road is semifinishing, is processed by numerically-controlled machine tool to shaft member, there are surpluses to be for the diameter of axle
2.5mm~4mm；Smart car uses diameter are as follows: the finishing tool of 125mm, cutting speed are as follows: 149.2m/min, cutting depth t=
0.3mm.Using DRY CUTTING, reach flatness: 0.03mm, roughness are as follows: Ra=1.6 μm；The position degree of dowel hole are as follows:
0.03mm；
Step 7: first of grinding machine eliminates shaft member curvature, reaches drawing requirement for corase grinding；
Step 8: oil boils processing, it is desirable that artificial aging, oil boil temperature control at 100 DEG C~180 DEG C, basis of time shaft member
Workpiece is heated to 150 DEG C of temperature, (10-24 hours) are cold with furnace after long-time heat preservation in left and right for 24 hours by diameter control
But it, or in air cools down.It saves the time than natrual ageing, and residual stress removal is more thorough, but answers compared to natrual ageing
Power release is not thorough, but more efficient, before eliminating and discharge microstress, the machining stress after sudden fire in shaft member etc.
The internal stress of road all process steps；
Step 9: second grinding machine is half fine grinding, and oil is boiled the micro bending of the shaft member finished and deformation carries out grinding and adds
Work reaches drawing requirement；
Step 10: the 4th turning, it is by numerically-controlled machine tool to shaft member processing, dimensional accuracy, position is smart for finishing
Degree, connection precision, carry out hyperfine Vehicle Processing, reach last drawing requirement；Smart car uses diameter are as follows: the finishing tool of 200mm,
Cutting speed are as follows: 149.5m/min, cutting depth t=0.3mm.Using DRY CUTTING, reach flatness: 0.05mm is coarse
Degree are as follows: Ra=3.2 μm；
Step 11: third road grinding machine is super grinding outer rim, shaft member is polishing to dimensional accuracy.It is processed with right-angle accessory
Each side processes gear plane with attachment is extended, and note: detection accessory precision before processing compensates the positioning and revolution of attachment
Precision.Guarantee positioning accuracy in 0.005mm/500mm or less.
It further include bearing hole on high speed rotor shafts, each dowel hole；Right boring bearing hole uses shockproof boring bar.Boring cutter diameter point
It Wei not ￠ 85.960+0.025, ￠ 101.960+0.025, ￠ 138.20+0.025, ￠ 138+0.01+0.04, ￠ 148+0.01+
0.04, ￠ 1700+0.03, cutting speed are equal are as follows: 110m/min, cutting depth are t=0.15mm.Spacing between bearing hole
Tolerance reaches 0.03mm；Bearing hole and the concentricity in axle envelope hole reach: 0.03mm；Roughness are as follows: Ra=2.0 μm；Using cutting
Liquid cutting, cutting fluid model bar rope 870,12% aqueous solution；
Gradually shaft blank part is handled by incremental four Che Yu tri- mill, to reduce defect rate, and 7
Positioning accuracy is compensated in secondary successive optimization, guarantees processing quality, reaches drawing requirement through examining, whole set process scheme economy is real
Favour, high production efficiency, and the heat treatments such as artificial aging are boiled by oil and are interspersed in vehicle mill treatment process, it removes and discharges preceding road work
The internal stress of sequence prevents shaft member cracking and deformation, improves the shaft member service life.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present invention after reading this specification, but as long as in this hair
All by the protection of Patent Law in bright scope of the claims.
Claims (3)
1. the technique manufacturing method of integral type high speed rotor shafts, it is characterised in that the following steps are included:
Step 1: blank forming chooses the blank of suitable dimension according to drawing requirement；
Step 2: first of turning carries out roughing to blank axis by lathe to be rough turn, and the diameter of axle is 4~6mm there are surplus,
Modifier treatment is carried out, modifier treatment includes quenching and high tempering, improves the inner hardness of blank axis, reaches drawing requirement；
Step 3: second turning is half smart car, is processed by numerically-controlled machine tool to shaft member, and the diameter of axle is 3~5mm there are surplus, will
The gear part processing of blank axis, which reaches, puts mill surplus；
Step 4: gear hobbing process carries out gear blank processing to gear part by generating, tooth socket is processed；
Step 5: heat treatment quenches the rough turn blank axis finished, shot-peening, removes stressing operations；
Step 6: the turning of third road, be semifinishing, by numerically-controlled machine tool to shaft member process, the diameter of axle there are surplus be 2.5mm~
4mm；
Step 7: first of grinding machine eliminates shaft member curvature, reaches drawing requirement for corase grinding；
Step 8: oil boils processing, it is desirable that artificial aging, oil boil temperature control at 100 DEG C~180 DEG C, basis of time shaft member diameter
Size control is eliminated in left and right for 24 hours and microstress, the road machining stress Deng Qian discharged after quenching in shaft member is all
The internal stress of process；
Step 9: second grinding machine refines for half, and oil is boiled the micro bending of the shaft member finished and deformation carries out grinding,
Reach drawing requirement；
Step 10: the 4th turning is handled shaft member by numerically-controlled machine tool, for finishing by dimensional accuracy, position precision, company
Precision is connect, hyperfine Vehicle Processing is carried out, reaches last drawing requirement；
Step 11: third road grinding machine is super grinding outer rim, shaft member is polishing to dimensional accuracy.
2. the technique manufacturing method of integral type high speed rotor shafts according to claim 1, it is characterised in that: described in step 3
Gear hobbing operation include specific steps:
A. multiple workpieces are processed several gear blanks are in tandem in mandrel, it is possible to reduce when hobboing cutter cuts out the incision of each gear blank
Between and the lay day；
B. using radial incision, when gear hobbing there are two ways to hobboing cutter incision gear blank: radial incision and axial incision；
C. knife and diagonal gear hobbing are altered using axial, when the most heavy cutter tooth of load is worn to a certain extent, hobboing cutter is axially moved along it
Continue to cut after dynamic a distance.
3. the technique manufacturing method of integral type high speed rotor shafts according to claim 2, it is characterised in that: wrapped in step 5
Shot-peening is included, shot-peening uses alloy bullet, and hardness is minimum to be not less than 6-7 Mohs and have certain toughness, minimum not small at circle rate
In 90%, minimum 75% is required at circle rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232924.9A CN109175925A (en) | 2018-10-23 | 2018-10-23 | The technique manufacturing method of integral type high speed rotor shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811232924.9A CN109175925A (en) | 2018-10-23 | 2018-10-23 | The technique manufacturing method of integral type high speed rotor shafts |
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| Publication Number | Publication Date |
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| CN109175925A true CN109175925A (en) | 2019-01-11 |
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ID=64942636
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811232924.9A Pending CN109175925A (en) | 2018-10-23 | 2018-10-23 | The technique manufacturing method of integral type high speed rotor shafts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122893A (en) * | 2020-01-10 | 2020-12-25 | 宝鼎科技股份有限公司 | Finish machining method for electric bounce rotor shaft |
| CN114833359A (en) * | 2022-04-26 | 2022-08-02 | 南阳微特防爆电机有限公司 | Processing method for reducing stray loss of rotor |
| CN116038260A (en) * | 2023-02-16 | 2023-05-02 | 浙江彰贵轴承科技有限公司 | Machining process for high-speed radial tilting pad supporting bearing guide pad |
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| CN202591751U (en) * | 2012-04-01 | 2012-12-12 | 李文辉 | Numerical-control gear hobbing machine |
| CN103397293A (en) * | 2013-07-26 | 2013-11-20 | 浙江吉利汽车研究院有限公司 | Carburization process for heavy machinery part |
| CN103447781A (en) * | 2013-09-06 | 2013-12-18 | 上海秋乐实业有限公司 | Rotor shaft processing technic and rotor shaft thereof |
| CN104493437A (en) * | 2014-11-25 | 2015-04-08 | 浙江铂达科技有限公司 | Oil pump shaft machining process |
| CN105014330A (en) * | 2015-06-29 | 2015-11-04 | 安庆市吉安汽车零件锻轧有限公司 | Camshaft producing and machining process |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202591751U (en) * | 2012-04-01 | 2012-12-12 | 李文辉 | Numerical-control gear hobbing machine |
| CN103397293A (en) * | 2013-07-26 | 2013-11-20 | 浙江吉利汽车研究院有限公司 | Carburization process for heavy machinery part |
| CN103447781A (en) * | 2013-09-06 | 2013-12-18 | 上海秋乐实业有限公司 | Rotor shaft processing technic and rotor shaft thereof |
| CN104493437A (en) * | 2014-11-25 | 2015-04-08 | 浙江铂达科技有限公司 | Oil pump shaft machining process |
| CN105014330A (en) * | 2015-06-29 | 2015-11-04 | 安庆市吉安汽车零件锻轧有限公司 | Camshaft producing and machining process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122893A (en) * | 2020-01-10 | 2020-12-25 | 宝鼎科技股份有限公司 | Finish machining method for electric bounce rotor shaft |
| CN114833359A (en) * | 2022-04-26 | 2022-08-02 | 南阳微特防爆电机有限公司 | Processing method for reducing stray loss of rotor |
| CN116038260A (en) * | 2023-02-16 | 2023-05-02 | 浙江彰贵轴承科技有限公司 | Machining process for high-speed radial tilting pad supporting bearing guide pad |
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Application publication date: 20190111 |