CN110202330A - A kind of processing method of the elongated axis of cone - Google Patents
A kind of processing method of the elongated axis of cone Download PDFInfo
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- CN110202330A CN110202330A CN201910484001.0A CN201910484001A CN110202330A CN 110202330 A CN110202330 A CN 110202330A CN 201910484001 A CN201910484001 A CN 201910484001A CN 110202330 A CN110202330 A CN 110202330A
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- 238000003672 processing method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000002161 passivation Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 3
- 238000005554 pickling Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000005242 forging Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 241000221561 Ustilaginales Species 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of processing methods of elongated axis of cone, the elongated axis of cone includes bigger diameter end threaded portion, taper transitions portion and miner diameter end threaded portion, draw ratio >=26 of the elongated axis of cone, the range of taper for lockking the axis of cone is 0.1 ° to 0.5 °, the processing method includes: the elongated pole material blanking of (a) metal, (b) metal elongated pole material heats, (c) metal elongated pole material is swaged, (d) the elongated axis of cone alignment of metal, (e) the elongated axis of cone acid wash passivation of metal, (f) the elongated axis of cone roll threading of metal.The beneficial effects of the present invention are: being machined with using this method conducive to metal homogeneous deformation and improving plasticity, the intensity and toughness of the elongated axis of cone are enhanced, elongated axis of cone dimensional accuracy is high, high production efficiency.
Description
Technical field
The present invention relates to field of machining more particularly to a kind of processing methods of elongated axis of cone of field of machining.
Background technique
Length-to-diameter be greater than 25(, that is, L/D > 25) axis elongated shaft.
It is greater than 25 in line processing major diameter, diameter tolerance, the elongated shaft that geometric tolerance is 6 grades, using conventional processing side
Method is loaded processing, is extremely difficult to processing request, and often results in product and scrap in finishing, and influences product due date,
Processing cost is proposed significantly, and since the draw ratio of elongated shaft is very big, rigidity is very poor.Cutting when, by cutting force, the power that is loaded, itself
The influence of the factors such as gravity, cutting heat, vibration, is easy to appear following problems: the draw ratio of elongated shaft is greater than 25, poor rigidity,
The factors such as the cutting force, cutting heat, the vibration that generate in processing will all directly affect the dimensional accuracy and parallel accuracy of workpiece.Processing
Difficulty is larger, and when being greater than 25 elongated shaft with higher cutting speed processing draw ratio, then difficulty of processing is higher.Elongated shaft is normal
Advising processing method is that one top of a folder or two push up,
1, cutting is the radial cutting force of production and the resultant force of radial component of being loaded, and can make workpiece bows, and when workpiece rotation causes
Vibration, to influence machining accuracy and surface quality；
2, the vibration for aggravating workpiece due to workpiece deformation induced by gravity, influences machining accuracy and surface quality；
3, when workpiece rotational frequency is high, the effect of centrifugal force exacerbates the bending and vibration of workpiece；
4, work in-process can cause workpiece bows to deform in the case where cutting heat effect.
Therefore, in turning elongated shaft, no matter the selection to cutter, lathe, auxiliary tool, cutting data, processing arrangement
There is higher requirement with technical operation, it is desirable that reasonably select cutting parameter, reasonably select cutting data:
When turning, generally as V=30~70m/min, in this velocity interval, be easy to produce vibration, at this time corresponding amplitude have compared with
Big value, is higher or lower than this velocity interval, and reducing tendency is presented in vibration.
When processing diameter less than 10mm, V≤30m/min is taken；When processing diameter greater than 10mm, V≤70m/min is taken,
It is the variation relation curve of limited cutting width and cutting speed.
It can be seen that: elongated shaft is rigidly poor, and in process because of lathe and cutter is multifactor etc. influences, workpiece is easily produced
The defects of dolioform, polygonal of raw bending, laemodipodiform etc., especially stock size is poor in grinding, and surface roughness is again
More demanding, and workpiece generally requires quenching formula quenched equal heat treatment requirements when because of grinding, cutting heat when grinding is easier to draw
Workpiece deformation etc. is played, and its difficulty of processing is bigger for tapered elongated shaft, the deformation of workpiece work in-process causes
The precision of taper not can guarantee in process.
In view of the above technical defects, there is an urgent need to a kind of more preferable processing method of slender axle to solve the problems, such as slender shaft turning.
Summary of the invention
To overcome above-mentioned prior art defect, the present invention provides a kind of processing method of elongated axis of cone.
It is of the present invention the specific technical proposal is:
A kind of processing method of the elongated axis of cone, the elongated axis of cone include bigger diameter end threaded portion, taper transitions portion and miner diameter end spiral shell
Line portion, the draw ratio of the elongated axis of cone are 30, and the range of taper for lockking the axis of cone is 0.5 °, and the processing method includes:
(a) round bar metal elongated pole material blanking: is cut into bar section by predetermined size；
(b) metal elongated pole material heats: the bar section in process (a) being placed in heating furnace and is heated to predetermined temperature；
(c) metal elongated pole material is swaged: stick section material obtained in process (b) being placed on swager inward turning and is swaged into the axis of cone；
(d) the elongated axis of cone alignment of metal: the axis of cone obtained in process (c) is straightened；
(e) the elongated axis of cone acid wash passivation of metal: the axis of cone obtained in process (d) is subjected to progress pickling and removes removing oxide layer, is gone forward side by side
Row Passivation Treatment；
(f) axis of cone both ends obtained in process (d) the elongated axis of cone roll threading of metal: are rolled out to the screw thread of specified specification.
It swages i.e. swaging, is also radial forging, frequently with two or more molds, makes its circular blank
While rotation around (bar, wire rod or tubing) outer diameter, also applies high-frequency radial force to blank axle center, make blank by diameter
To compression by process mold molded line forming and axially extended.It is the gold of a kind of part and continuous, chipless and precision
Belong to forming technique:
1) through the forging of swaging, there is continuous fibre flow.This point, it will be apparent that be better than machining part；
2) it swages the surface roughness quality of part, is improved with the increase of billet cross section decrement, generally all surpass cutting table
Face from, and be conducive to improve parts cooperation precision；
3) since there are additional compression stress for the forging surface after swaging, thus the bending resistance of this forging is also improved
Intensity；Along with the advantage of any surface finish, the notch effect of this forging can be made to reach minimum；
4) precision for rotating forging depends on decrement, the quality for mould of swaging and the size of diameter of forgings of billet cross section,
Amount of tolerance is about within the scope of ± 0.02 ~ ± 0.2mm.This precision can match with the precision of precision cutting.
Metal after Oxidant is handled, etch ratio it is original it is untreated before the phenomenon that being decreased significantly claim metal
Passivation, the present invention in using pickling post-passivation handle, be passivated after understanding the surface smuts such as oxide layer and residue, make to clean
Metal surface afterwards generates protective film, slows down corrosion, no longer needs to carry out non-processing face antirust treatment after following process, operation letter
It is single, it is easy to use, economical and practical.
Preferably, the heating temperature is between 1100 DEG C to 1250 DEG C.
Preferably, temperature of initially swaging be 1100 DEG C to 1250 DEG C between, terminal swage temperature be 850 DEG C to 950 DEG C.
Preferably, axial feed velocity of swaging is 0.6m/min to 0.83m/min.
Preferably, the elongated axis of cone roll threading of the metal is realized using rolled thread mode.
Preferably, the elongated axis of cone roll threading bigger diameter end threaded portion of the metal is realized using axial rolled thread mode,
Miner diameter end screw thread realizes that rolling screw-threads are that workpiece is made to generate plasticity with forming roll die using tangential screw rolling mode
The processing method to obtain screw thread is deformed, wherein axial rolled thread is axial thread idler wheel since turning center tailstock end, edge
Workpiece blank center line is mobile, to form screw thread, the general axial direction idler wheel range of work is 1.5~228 mm of diameter, and is cut
To rolling screw-threads, to be tangential turning rolls and from side close to workpiece blank form the tangential idler wheel of screw thread only in roller widths
Rolled thread, width range are 15~40 mm, and two kinds of forming methods faster, can be generated compared to tangential screw rolling forming process
There is no the precise boundary of burr, therefore the screw thread for cooperating precision low big for reach is realized using axial rolled thread mode, it is right
It is realized in the small cooperation screw thread with high accuracy of reach using tangential screw rolling mode.
The positive effect of the present invention is: being machined with using this method conducive to metal homogeneous deformation and improves plasticity, enhanced
The intensity and toughness of the elongated axis of cone, elongated axis of cone dimensional accuracy is high, high production efficiency, produces effect compared to traditional processing method
Rate is increased to original 9 to 10 times.
Detailed description of the invention
Fig. 1 is elongated axis of cone schematic diagram applied by a kind of processing method of the elongated axis of cone of the present invention；
Fig. 2 is a kind of processing method flow chart of the elongated axis of cone of the present invention
Marginal data: 1-miner diameter end threaded portion, 2-taper transitions portions, 3-bigger diameter end threaded portions.
Specific embodiment
The present invention will be described in detail in the following with reference to the drawings and specific embodiments:
Specific embodiment one:
A kind of processing method of the elongated axis of cone, the elongated axis of cone include bigger diameter end threaded portion 3, taper transitions portion 2 and miner diameter end
Threaded portion 1, the draw ratio of the elongated axis of cone are 26, and the range of taper for lockking the axis of cone is 0.2 °, and the processing method includes:
(a) round bar is cut into bar section with sawing machine, length 800mm marshalling and transports bar section in transit wagon
To subsequent processing；
(b) length in process (a) is placed in intermediate frequency furnace for 800mm bar section and is heated to 1150 DEG C
(c) stick section material obtained in process (b) is quickly placed in swager and is swaged, axial feed velocity of swaging is 0.6m/
min；
(d) axis of cone obtained in process (c) is straightened；
(e) axis of cone obtained in process (d) is subjected to progress pickling and removes removing oxide layer, pickling formula of liquid are as follows: HCl 15%;Inhibition
Agent is 1.5%;Remaining is water.Operation technological requirement are as follows: then soak at room temperature 2h is rinsed well with clear water, pickling number is 2 times；
Then processing, preparation of passivation solution are passivated are as follows: passivator 11%;NH4OH is 2%;Remaining is water.Operation technological requirement are as follows:
Soak at room temperature 5min；
(f) the elongated axis of cone roll threading of metal: axis of cone both ends obtained in process (d) are rolled out using tangential screw rolling mode
Screw thread M25 × 15 and screw thread M10 × 15.
Specific embodiment two:
A kind of processing method of the elongated axis of cone, the elongated axis of cone include bigger diameter end threaded portion 3, taper transitions portion 2 and miner diameter end
Threaded portion 1, draw ratio >=26 of the elongated axis of cone, the range of taper for lockking the axis of cone is 0.1 ° to 0.5 °, the processing side
Method includes:
(a) round bar is cut into bar section with sawing machine, length 800mm marshalling and transports bar section in transit wagon
To subsequent processing；
(b) length in process (a) is placed in intermediate frequency furnace for 800mm bar section and is heated to 1150 DEG C
(c) stick section material obtained in process (b) is quickly placed in swager and is swaged, axial feed velocity of swaging is 0.6m/
min；
(d) axis of cone obtained in process (c) is straightened；
(e) axis of cone obtained in process (d) is subjected to progress pickling and removes removing oxide layer, pickling formula of liquid are as follows: HCl 14%;Inhibition
Agent is 1%;Remaining is water.Operation technological requirement are as follows: then soak at room temperature 2h is rinsed well with clear water, pickling number is 2 times；So
After carry out Passivation Treatment, preparation of passivation solution are as follows: passivator 12%;NH4OH is 1%;Remaining is water.Operation technological requirement are as follows: often
Temperature impregnates 7min；
(f) the elongated axis of cone roll threading of metal: by axis of cone roll threading obtained in process (d), 3 screw thread M25 of bigger diameter end threaded portion ×
40 realize that 1 screw thread M10 × 15 of miner diameter end screw thread is realized using tangential screw rolling mode using axial rolled thread mode.
Specific embodiment three:
A kind of processing method of the elongated axis of cone, the elongated axis of cone include bigger diameter end threaded portion 3, taper transitions portion 2 and miner diameter end
Threaded portion 1, the draw ratio of the elongated axis of cone are 28, and the range of taper for lockking the axis of cone is 0.4 °, and the processing method includes:
(a) round bar is cut into bar section with sawing machine, length 600mm marshalling and transports bar section in transit wagon
To subsequent processing；
(b) length in process (a) is placed in intermediate frequency furnace for 600mm bar section and is heated to 1200 DEG C
(c) stick section material obtained in process (b) is quickly placed in swager and is swaged, axial feed velocity of swaging is 0.8m/
min；
(d) axis of cone obtained in process (c) is straightened；
(e) axis of cone obtained in process (d) is subjected to progress pickling and removes removing oxide layer, pickling formula of liquid are as follows: HCl 14%;Inhibition
Agent is 1%;Remaining is water.Operation technological requirement are as follows: then soak at room temperature 2h is rinsed well with clear water, pickling number is 2 times；So
After carry out Passivation Treatment, preparation of passivation solution are as follows: passivator 12%;NH4OH is 1%;Remaining is water.Operation technological requirement are as follows: often
Temperature impregnates 7min；
(f) the elongated axis of cone roll threading of metal: by axis of cone roll threading obtained in process (d), 3 screw thread M25 × 40 of bigger diameter end spiral shell are adopted
It is realized with axial rolled thread mode, 1 screw thread M10 × 15 of miner diameter end screw thread is realized using tangential screw rolling mode.
Above-described embodiment elaborates the present invention.Certainly, above description is not limitation of the present invention, the present invention
Be also not limited to above-mentioned example, related technical personnel within the essential scope of the present invention made variation, retrofit, add and add deduct
Less, it replaces, also belongs to protection scope of the present invention.
Claims (6)
1. a kind of processing method of the elongated axis of cone, the elongated axis of cone includes bigger diameter end threaded portion, taper transitions portion and miner diameter end
Threaded portion, which is characterized in that draw ratio >=26 of the elongated axis of cone, the range of taper for lockking the axis of cone is 0.1 ° to 0.5 °, institute
The processing method stated includes:
(a) round bar metal elongated pole material blanking: is cut into bar section by predetermined size；
(b) metal elongated pole material heats: the bar section in process (a) being placed in heating furnace and is heated to predetermined temperature；
(c) metal elongated pole material is swaged: stick section material obtained in process (b) being placed on swager inward turning and is swaged into the axis of cone；
(d) the elongated axis of cone alignment of metal: the axis of cone obtained in process (c) is straightened；
(e) the elongated axis of cone acid wash passivation of metal: the axis of cone obtained in process (d) is subjected to progress pickling and removes removing oxide layer, is gone forward side by side
Row Passivation Treatment；
(f) axis of cone both ends obtained in process (d) the elongated axis of cone roll threading of metal: are rolled out to the screw thread of specified specification.
2. a kind of processing method of the elongated axis of cone according to claim 1, which is characterized in that the heating temperature is 1100 DEG C
To between 1250 DEG C.
3. a kind of processing method of the elongated axis of cone according to claim 2, which is characterized in that temperature of initially swaging is 1100 DEG C
To between 1250 DEG C, terminal swage temperature be 850 DEG C to 950 DEG C.
4. according to claim 1 to a kind of processing method of elongated axis of cone described in one of 3, which is characterized in that axial feed of swaging
Speed is 0.6m/min to 0.83m/min.
5. a kind of processing method of the elongated axis of cone according to claim 4, which is characterized in that the elongated axis of cone rolling of the metal
Screw thread is realized using rolled thread mode.
6. a kind of processing method of the elongated axis of cone according to claim 5, which is characterized in that the elongated axis of cone rolling of the metal
Major Diam end threaded portion realizes that miner diameter end screw thread is real using tangential screw rolling mode using axial rolled thread mode
It is existing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910484001.0A CN110202330A (en) | 2019-06-05 | 2019-06-05 | A kind of processing method of the elongated axis of cone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910484001.0A CN110202330A (en) | 2019-06-05 | 2019-06-05 | A kind of processing method of the elongated axis of cone |
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| CN110202330A true CN110202330A (en) | 2019-09-06 |
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| CN201910484001.0A Pending CN110202330A (en) | 2019-06-05 | 2019-06-05 | A kind of processing method of the elongated axis of cone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430993A (en) * | 2021-10-16 | 2022-12-06 | 宝鼎重工有限公司 | Main shaft for ultra-large mine crushing equipment and machining method |
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| JP2009066725A (en) * | 2007-09-14 | 2009-04-02 | Nakamura Tome Precision Ind Co Ltd | Combined lathe and its work machining method |
| CN107335550A (en) * | 2017-07-01 | 2017-11-10 | 宁波华成阀门有限公司 | A kind of high anti-corrosion incrustation scale of high fatigue rinses valve body and its manufacture method |
| CN107855812A (en) * | 2017-11-08 | 2018-03-30 | 信利光电股份有限公司 | A kind of processing tool and processing method of thin and long shafts part turning |
-
2019
- 2019-06-05 CN CN201910484001.0A patent/CN110202330A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528542A (en) * | 2003-10-20 | 2004-09-15 | 广州冠华金属精工制造有限公司 | Method and apparatus for manufacturing reducing pipe |
| JP2009066725A (en) * | 2007-09-14 | 2009-04-02 | Nakamura Tome Precision Ind Co Ltd | Combined lathe and its work machining method |
| CN101342654A (en) * | 2008-08-29 | 2009-01-14 | 中国航空工业标准件制造有限责任公司 | Machining method of high-precision long and thin round shaft |
| CN107335550A (en) * | 2017-07-01 | 2017-11-10 | 宁波华成阀门有限公司 | A kind of high anti-corrosion incrustation scale of high fatigue rinses valve body and its manufacture method |
| CN107855812A (en) * | 2017-11-08 | 2018-03-30 | 信利光电股份有限公司 | A kind of processing tool and processing method of thin and long shafts part turning |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430993A (en) * | 2021-10-16 | 2022-12-06 | 宝鼎重工有限公司 | Main shaft for ultra-large mine crushing equipment and machining method |
| CN115430993B (en) * | 2021-10-16 | 2024-05-24 | 宝鼎重工有限公司 | Main shaft for oversized mine crushing equipment and processing method |
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Application publication date: 20190906 |
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