CN107252829A - The accurate near-net-shape technique and device of a kind of bevel gear shaft - Google Patents
The accurate near-net-shape technique and device of a kind of bevel gear shaft Download PDFInfo
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- CN107252829A CN107252829A CN201710693779.3A CN201710693779A CN107252829A CN 107252829 A CN107252829 A CN 107252829A CN 201710693779 A CN201710693779 A CN 201710693779A CN 107252829 A CN107252829 A CN 107252829A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 39
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims abstract description 12
- 238000005461 lubrication Methods 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 239000010721 machine oil Substances 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 7
- 238000005242 forging Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000641 cold extrusion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/32—Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The accurate near-net-shape technique and device of a kind of bevel gear shaft of the present invention.The technique comprises the following steps：The accurate sawing of a, bar；B, annealing；C, using polymeric lubricant lubricate blank；D, cold-heading preform cone blank：It is that next step near-net-shape bevel gear and Step Shaft lay the foundation according to the preliminary preformed blank of the shape of tooth cone angle and axle step of bevel gear shaft using the method for room temperature cold-heading；E, molybdenum disulfide lubrication：Molybdenum disulphide powder and machine oil by weight percentage 30%~40%: 60%~70% are stirred, the molybdenum disulfide prepared is coated on preformed cone blank surface afterwards, near net forming mould internal shaping is directly placed into；F, accurate near-net-shape：Bevel gear shaft is shaped on accurate near-net-shape device；G, it is machined out as needed；H, finished product.The building mortion of the present invention is made up of a set of combination tapered tooth mould, a set of bench group Axle mould, reinforcing plate and ejecting limit block etc. four part.
Description
Technical field
The present invention relates to bevel gear（Bevel gear）The control forming technique of axle and metal material, category mechanized equipment manufacturing industry neck
Domain.Specifically a kind of bevel gear（Bevel gear）The accurate near-net-shape technique and device of axle, it is adaptable to large batch of automobile, dilatory
The accurate near-net-shape of the bevel gear axial workpiece such as machine, motorcycle, aviation, naval vessel, tank.
Background technology
At present, bevel gear axial workpiece, is typically formed using the processing of milling machine machine chips or hot forging.Machining is present
That cutter life is low, cost is high, bad product size homogeneity, low production efficiency, not high stock utilization the problems such as.Hot-die
Forge because heating causes the surface roughness difference of bevel gear and axle to need finishing again, process is more and energy resource consumption is big.With the industry of vapour support
With the fast development and high performance requirement of the military hardware such as helicopter, naval vessel, tank, traditional milling machine machine chips processing and
Hot forging method can not meet more and more high-volume and the high-quality market demand.
The content of the invention
The purpose of the present invention exactly provides a kind of for boring tooth for the weak point in the presence of above-mentioned existing process
The technique and device of wheel shaft precision near-net-shape.
The purpose of the present invention is achieved through the following technical solutions：
The accurate near-net-shape technique of the bevel gear shaft of the present invention comprises the following steps：
The accurate sawing of a, bar；
B, annealing；
C, using FM-4 water base high moleculars lubricant lubricate blank；
D, cold-heading preform cone blank：Using the method for room temperature cold-heading, according to the shape of the tooth cone angle of bevel gear shaft and axle step
Preliminary preformed blank, is that next step near-net-shape bevel gear and Step Shaft lay the foundation；
E, molybdenum disulfide lubrication：Molybdenum disulphide powder and machine oil by weight percentage 30%~40%: 60%~70% are stirred, it
The molybdenum disulfide prepared is coated on preformed cone blank surface afterwards, near net forming mould internal shaping is directly placed into；
F, accurate near-net-shape：Bevel gear shaft is shaped on accurate near-net-shape device；
G, it is machined out as needed；
H, finished product.
The accurate near-net-shape device of the present invention includes upper combination tapered tooth mould, the lower bench group from top to bottom set gradually
Axle mould, reinforcing backing plate and ejecting limit block etc. four part；The upper combination tapered tooth mould includes being set in together successively from the inside to the outside
Bevel gear core, core adapter sleeve, core reinforcing rigidized cover；The lower combination Step Shaft mould is to use successively from the inside to the outside
Step Axle mould that the fit system that is full of is set in together, Step Shaft die sleeve, step Axle mould retainer plate are combined；The reinforcing backing plate
It is made up of the interior reinforcing plate being set in together using interference fit with outside plate；The ejecting limit block is to be set with from the inside to the outside
Ejector beam and limited block together is constituted, and the upper end of the ejector beam is prolonged by the central through hole of interior reinforcing plate straight up
In the die cavity for extending step Axle mould.
The top of heretofore described bevel gear core, which is reserved with, not only can ensure that bevel gear teeth shape is full of but also beneficial to unnecessary
Metal shunt, while the ventilative tap hole of the distribution of force situation of mould can also be effectively improved, so as to greatly improve cone
The service life of mould；The diameter of the ventilative tap hole can neither greatly can not be small, big metal is easily flowed in hole, causes to bore tooth
It is not fully filled；Resistance of deformation that is too small and can causing metal increases, and causes crack of die.Experience think the diameter d of the tap hole=
0.15~0.2D（Bevel gear outside diameter）It is proper.
In the apparatus of the present, conventional backing plate is different from by interior reinforcing plate and the reinforcing backing plate that outside plate is constituted.Conventional pad
Plate is typically integrally to be manufactured using common alloy steel, and heat treatment hardness and intensity is not high, and the split group that the present invention is then used
Box-like reinforcing backing plate, reinforcing plate can use mould steel or alloy steel making in it, and what its hardness and intensity can be handled is better than normal
Advise backing plate.So not only be unlikely to deform, be collapsed and fragmentation, while can also effective protection bench Axle mould damage, in addition, may be used also
With reinforcing plate in changing as needed so as to many occasion used interchangeablies, so as to reduce backing plate quantity, mold materials are saved.
" cold-heading preform bores blank " in the present invention, different from hot forging prefabricated blank.Hot forging is mostly using machining
Car considers base to be worth doing.Blank is jagged especially to be handled, while substantial amounts of lathe, knife, measurer and manpower etc. need to be used.Hot forging is also adopted
With hot forging prefabricated blank but must go to remove surface scale.The method that this technique then uses room temperature cold-heading, according to bevel gear shaft
The preliminary preformed blank of shape of tooth cone angle and axle step, is that next step near-net-shape bevel gear and Step Shaft lay the foundation.
" molybdenum disulfide lubrication " in the present invention, refers to by a certain percentage stirring molybdenum disulphide powder and machine oil and puts
Put in a small container, preformed cone blank surface is stained with by hand by molybdenum disulfide by hydraulic press operative employee, is directly placed near
Net shaping dies internal shaping, it is not necessary to large-scale heating, derusting, lubrication process, but reach reduction frictional resistance and raising
The purpose of the surface smoothness of workpiece.Because the polymeric lubricant of upper track lubrication process still has adhesion in cone blank surface, should
The secondary supplement of " molybdenum disulfide lubrication " process actually lubricant, eliminates cumbersome traditional lubrication, and operation is convenient, energy-conservation, nothing
Pollution, effect are good.
The finished product is bevel gear axial workpiece.
More specifically, shaping process of the invention is：Accurate sawing bar is sawed using hyper tape, then softened
Annealing, ball blast removes billet surface oxide skin, and cleaning derusting heating lubricates blank, Ran Houleng using polymeric lubricant
Upsetting preform bores blank.Preform cone blank is put into the accurate near-net-shape device of bevel gear shaft after molybdenum disulfide supplemental lubrication
Upper shaping bevel gear shaft.When shaping bevel gear shaft workpiece, mould is assembled, carefully adjusted cone tooth mould with step Axle mould
Whole centering, to ensure the dimensional accuracy of bevel gear shaft.
Heretofore described upper combination tapered tooth mould is commonly mounted directly in the universal upper die frame of hydraulic press can be used,
Operate convenient and easy, it is economical and practical.The ejecting limit block, reinforcing backing plate and lower combination Step Shaft mould when applying by it is lower extremely
On be placed sequentially in the General-purpose lower die frame of hydraulic press, adjustment upper and lower mould centering as needed can accurate near-net-shape bevel gear
Axle.
The operation sequence of the building mortion of the present invention is as follows：First bevel gear core and core adapter sleeve are interference fitted, so
Press, then combination tapered tooth mould on this is arranged in the universal upper die frame of hydraulic press with core reinforcing rigidized cover interference again afterwards.
Step Axle mould and Step Shaft die sleeve are interference fitted, are then interference fitted with step Axle mould retainer plate.By interior reinforcing plate and outside plate
Interference presses together composition reinforcing plate.Using when limited block and ejector beam are first put into the General-purpose lower die frame of hydraulic press used
Interior, the reinforcing plate for then constituting interior reinforcing plate with outside plate is put into mould bases, then bench group Axle mould is put into, as needed adjustment
Upper and lower mould centering.Cold-heading preform cone blank is put into lower combination Step Shaft mould, descending with press forces metal flow
Extrusion molding goes out bevel gear shaft.When Precise Cold-extrusion bevel gear shaft reaches sets requirement, press stops descending and backhaul,
Bevel gear shaft workpiece top departs from bevel gear core, and lower part is ejected workpiece by ejector beam 10.So move in circles
Produce bevel gear axial workpiece in enormous quantities.
Beneficial effects of the present invention are as follows：
1st, using this accurate near-net-shape technique and the bevel gear shaft of equipment shaping, with continuous metallic fiber streamline, it is to avoid
In defects such as tool marks, micro-crack and the finish differences of root portion formation during machine chips processing, material structure is finer and close, institute
So that part is wear-resistant, and intensity is high, and service life is greatly improved.
2nd, using this accurate near-net-shape technique and the bevel gear shaft of equipment shaping, machining period can be greatly shortened, it is raw
Production efficiency be approximately mach 15~20 times of and can save substantial amounts of knife, amount, fixture and machining needed for equipment, manpower,
The energy, while the utilization rate of material is also greatly improved, the size favourable identity of part, quality is high, with significant economic benefit
And social benefit, it is especially suitable for producing application in enormous quantities.
3rd, the technique and device are suitable for the accurate near-net-shape of bevel gear shaft.Building mortion novelty simple in construction, plus
Work is manufactured easily, is facilitated using operation, and die life is long, suitably produces application in enormous quantities.The present apparatus is upper by bevel gear core
Portion is machined with ventilative tap hole, not only can ensure that bevel gear teeth shape is full of but also beneficial to excess metal shunting, while can also effectively change
The distribution of force situation of kind mould, so as to greatly improve the service life of prod cast.Strengthen backing plate and be different from conventional backing plate, its
Hardness and intensity are better than conventional backing plate, are difficult crushing deformation, while the damage of acceptable effectively protection bench Axle mould, in addition, also
Interior reinforcing plate can be changed as needed so as to many occasion used interchangeablies, so as to reduce backing plate quantity, save expensive mould
Material, remarkable in economical benefits.
4th,, can be effective using molybdenum disulfide supplemental lubrication preformed blank in the accurate near-net-shape technique of bevel gear shaft
Reduce frictional force, improve bevel gear shaft surface smoothness.Molybdenum disulfide lubricates pollution-free, nonhazardous, energy-conservation, simple to operate.
5th, the building mortion is simple in construction innovation, it is easy to manufacture, cost savings the mold materials of costliness, warp
Ji remarkable benefit.Simultaneously using operation facility, die life length, replacing are easy, are suitable for producing application in enormous quantities.
6th, the accurate near-net-shape technique that uses of the present invention, it is determined that technological parameter rationally, the cone tooth of accurate near-net-shape
Wheel shaft part, surface smoothness, precision, the size of its cone gear form etc. reach the design requirement of part, without machining again i.e.
It can be used.
Brief description of the drawings
Fig. 1 is the structural representation of the net building mortion of precision of the bevel gear shaft of the present invention.
Sequence number in figure：1 is bevel gear core, and 2 be core adapter sleeve, and 3 be bevel gear shaft workpiece, and 4 be core reinforcing reinforcing
Set, 5 be step Axle mould, and 6 be Step Shaft die sleeve, and 7 be step Axle mould retainer plate, and 8 be interior reinforcing plate, and 9 be outside plate, and 10 be liftout
Bar, 11 be limited block.
Embodiment
The present invention is below with reference to embodiment（Accompanying drawing）It is further described：
The purpose of the present invention is achieved through the following technical solutions：
The accurate near-net-shape technique of the bevel gear shaft of the present invention comprises the following steps：
The accurate sawing of a, bar；
B, annealing；
C, using high FM-4 molecules lubricant lubricate blank；
D, cold-heading preform cone blank：Using the method for room temperature cold-heading, according to the shape of the tooth cone angle of bevel gear shaft and axle step
Preliminary preformed blank, is that next step near-net-shape bevel gear and Step Shaft lay the foundation；
E, molybdenum disulfide lubrication：Molybdenum disulphide powder and machine oil by weight percentage 30%~40%: 60%~70% are stirred, it
The molybdenum disulfide prepared is coated on preformed cone blank surface afterwards, near net forming mould internal shaping is directly placed into；
F, accurate near-net-shape：Bevel gear shaft is shaped on accurate near-net-shape device；
G, it is machined out as needed；
H, finished product.
Furtherly, the present invention saws accurate sawing bar using hyper tape, then carries out soft annealing processing, removes blank
Surface scale, using polymeric lubricant by blank lubricated, then cold-heading preform cone blank.Preform is bored into blank
It is put into after being lubricated through molybdenum disulfide on the accurate near-net-shape device of bevel gear shaft and shapes bevel gear shaft.Shape bevel gear shaft workpiece
When, mould is assembled, cone tooth mould is adjusted into centering with step Axle mould carefully, to ensure the size essence of bevel gear shaft
Degree.
Building mortion combination Fig. 1 of the present invention is described further：
The accurate near-net-shape device of the present invention includes upper combination tapered tooth mould, the lower combination Step Shaft from top to bottom set gradually
Mould, reinforcing backing plate and ejecting limit block etc. four part；The upper combination tapered tooth mould includes what is be set in together successively from the inside to the outside
Bevel gear core (1), core adapter sleeve (2), core reinforcing rigidized cover (4)；It is described it is lower combination Step Shaft mould be from the inside to the outside according to
Step Axle mould (5) that secondary use interference fit is set in together, Step Shaft die sleeve (6), step Axle mould retainer plate（7）Combination
Form；The reinforcing backing plate is by using the interior reinforcing plate that interference fit is set in together（8）With outside plate（9）Composition；It is described
Ejecting limit block is the ejector beam being set in together from the inside to the outside（10）Constituted with limited block (11), and the ejector beam（10）'s
Upper end passes through interior reinforcing plate straight up（8）Central through hole extend in the die cavity of step Axle mould (5).
The top of heretofore described bevel gear core (1), which is reserved with, not only can ensure that bevel gear teeth shape is full of but also is beneficial to
Excess metal is shunted, while the ventilative tap hole of the distribution of force situation of mould can also be effectively improved, so as to carry significantly
The service life of high prod cast；The diameter of the ventilative tap hole can neither greatly can not be small, big metal is easily flowed in hole, is caused
Cone tooth is not fully filled；Resistance of deformation that is too small and can causing metal increases, and causes crack of die.Experience thinks the diameter of the tap hole
D=0.15~0.2D（Bevel gear outside diameter）It is proper.
In the apparatus of the present, by interior reinforcing plate（8）With outside plate（9）The reinforcing backing plate of composition is different from conventional backing plate.
Conventional backing plate is typically integrally to be manufactured using common alloy steel, and heat treatment hardness and intensity is not high, and what the present invention was then used
Separate assembling strengthens backing plate, reinforcing plate in it（8）Mould steel or alloy steel making can be used, its hardness and intensity can be handled
Better than conventional backing plate.So not only be unlikely to deform, be collapsed and fragmentation, while can also effective protection bench Axle mould damage,
Furthermore it is also possible to which reinforcing plate, so as to reduce backing plate quantity, saves mould material so as to many occasion used interchangeablies in changing as needed
Material.
The specific assembling mode of apparatus of the present invention is as follows：First bevel gear core (1) is matched somebody with somebody with core adapter sleeve (2) interference
Close, then pressed again with core reinforcing rigidized cover (4), then combination tapered tooth mould on this is arranged on to the universal upper die of hydraulic press
In frame；Step Axle mould (5) and Step Shaft die sleeve (6) are interference fitted, then with step Axle mould retainer plate（7）Interference is pressed；Will
Interior reinforcing plate（8）With outside plate（9）Interference presses together composition reinforcing plate.Using when first by limited block (11) and ejector beam（10）
In the General-purpose lower die frame for being put into hydraulic press used, reinforcing plate is then put into mould bases, then bench group Axle mould is put into, according to
Need to adjust upper and lower mould centering, finally fix upper/lower die.
The preformed cone blank of cold-heading is put into lower combination Step Shaft mould, descending with hydraulic press forces metal flow
Extrusion molding goes out bevel gear shaft.When the bevel gear shaft workpiece of cold extrusion reaches design requirement, press stops descending and backhaul, cone
Gear shaft workpiece top departs from bevel gear core, and lower part is then ejected workpiece by ejector beam 10.So move in circles
Produce bevel gear axial workpiece in enormous quantities.
So-called accurate near-net-shape bevel gear shaft part is exactly the device using the present invention by the cone flank of tooth of bevel gear shaft
Shape and can be used without machining again only with shaft step part point, or somewhat processed at axle step usable.Therefore, should
Careful bevel gear core and step Axle mould should be adjusted with during the present invention, make its centering up and down, so as to ensure the cone of shaping
The precision of gear shaft-like work reaches design requirement.
Claims (3)
1. a kind of accurate near-net-shape technique of bevel gear shaft, it is characterised in that：The technique comprises the following steps：
The accurate sawing of a, bar；
B, annealing；
C, using FM-4 water base high moleculars lubricant lubricate blank；
D, cold-heading preform cone blank：Using the method for room temperature cold-heading, according to the shape of the tooth cone angle of bevel gear shaft and axle step
Preliminary preformed blank, is that next step near-net-shape bevel gear and Step Shaft lay the foundation；
E, molybdenum disulfide lubrication：Molybdenum disulphide powder and machine oil by weight percentage 30%~40%: 60%~70% are stirred, it
The molybdenum disulfide prepared is coated on preformed cone blank surface afterwards, near net forming mould internal shaping is directly placed into；
F, accurate near-net-shape：Bevel gear shaft is shaped on accurate near-net-shape device；
G, it is machined out as needed；
H, finished product.
2. a kind of accurate near-net-shape device suitable for technique described in claim 1, it is characterised in that：It is included from top to bottom
The upper combination tapered tooth mould that sets gradually, lower combination Step Shaft mould, reinforcing backing plate and ejecting limit block etc. four part；The upper combination
Cone tooth mould includes bevel gear core (1), core adapter sleeve (2), core the reinforcing rigidized cover being set in together successively from the inside to the outside
(4)；The lower combination Step Shaft mould be set in together successively using interference fit from the inside to the outside step Axle mould (5),
Step Shaft die sleeve (6), step Axle mould retainer plate（7）Combine；The reinforcing backing plate using interference fit by being sleeved on
Interior reinforcing plate together（8）With outside plate（9）Composition；The ejecting limit block is the ejector beam being set in together from the inside to the outside（10）
Constituted with limited block (11), and the ejector beam（10）Upper end pass through interior reinforcing plate straight up（8）Central through hole extension
Into the die cavity of step Axle mould (5).
3. accurate near-net-shape device according to claim 2, it is characterised in that：Reserve on the top of bevel gear core (1)
Have and not only can ensure that bevel gear teeth shape is full of but also beneficial to excess metal shunting, while the distribution of force shape of mould can also be effectively improved
The ventilative tap hole of condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693779.3A CN107252829B (en) | 2017-08-14 | 2017-08-14 | Precise near-net forming process and device for bevel gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710693779.3A CN107252829B (en) | 2017-08-14 | 2017-08-14 | Precise near-net forming process and device for bevel gear shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107252829A true CN107252829A (en) | 2017-10-17 |
| CN107252829B CN107252829B (en) | 2023-03-14 |
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| CN201710693779.3A Active CN107252829B (en) | 2017-08-14 | 2017-08-14 | Precise near-net forming process and device for bevel gear shaft |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109483187A (en) * | 2019-01-03 | 2019-03-19 | 盐城金刚星精密锻造有限公司 | A kind of big specification spiral bevel gear near-net-shape technique |
| CN109550802A (en) * | 2018-12-14 | 2019-04-02 | 江西福格新能源传动技术有限公司 | A kind of differential gear axial direction shunting cold-extrusion shaping apparatus and method |
| CN110982599A (en) * | 2019-12-17 | 2020-04-10 | 南京工程学院 | Near-net-shape forming lubricant and preparation method thereof |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113478188A (en) * | 2021-07-28 | 2021-10-08 | 重庆创精温锻成型有限公司 | Parking gear tooth profile lateral extrusion forming method |
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| WO1993023186A1 (en) * | 1992-05-21 | 1993-11-25 | Nichidai Corporation | Method of manufacturing shaft of bevel gear |
| CN101712062A (en) * | 2009-11-05 | 2010-05-26 | 郑州机械研究所 | Plastic precise forming process and device of internal bevel gear or spiral involute internal spline |
| CN203526435U (en) * | 2013-09-27 | 2014-04-09 | 江苏太平洋精锻科技股份有限公司 | Bevel gear shaft forging die |
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2017
- 2017-08-14 CN CN201710693779.3A patent/CN107252829B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109550802A (en) * | 2018-12-14 | 2019-04-02 | 江西福格新能源传动技术有限公司 | A kind of differential gear axial direction shunting cold-extrusion shaping apparatus and method |
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| CN110982599A (en) * | 2019-12-17 | 2020-04-10 | 南京工程学院 | Near-net-shape forming lubricant and preparation method thereof |
| CN110982599B (en) * | 2019-12-17 | 2022-06-24 | 南京工程学院 | Near-net-shape forming lubricant and preparation method thereof |
| CN111546020A (en) * | 2020-05-27 | 2020-08-18 | 苏州联咏成精密机械有限公司 | Shunting cold extrusion high-precision forming method for automobile spiral bevel gear |
| CN113478188A (en) * | 2021-07-28 | 2021-10-08 | 重庆创精温锻成型有限公司 | Parking gear tooth profile lateral extrusion forming method |
| CN113478188B (en) * | 2021-07-28 | 2022-07-29 | 重庆创精温锻成型有限公司 | Parking gear tooth profile lateral extrusion forming method |
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